CN118116301A - Driving board, display device, driving method, computer device and storage medium - Google Patents
Driving board, display device, driving method, computer device and storage medium Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G3/2096—Details of the interface to the display terminal specific for a flat panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/045—Zooming at least part of an image, i.e. enlarging it or shrinking it
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Abstract
The invention discloses a driving board, a display device, a driving method, computer equipment and a storage medium, wherein the driving board of one embodiment comprises a signal input interface, a time sequence controller and a signal output interface, wherein the signal input interface acquires a video source signal sent by a processor; the timing controller decodes and image processes the input video source signal, and outputs a video display signal generated after the processing to a display panel of the display device through the signal output interface, wherein the timing controller includes: the time sequence control unit outputs a time sequence signal; the micro control unit is used for decoding the input video source signal to generate a video decoding signal; an image scaling unit for performing scaling processing on the video decoding signal and generating a video image signal; and an image enhancement unit that performs enhancement processing on the video image signal of the image scaling unit to generate the video display signal.
Description
Technical Field
The invention relates to the technical field of display messages. And more particularly, to a driving board, a display apparatus, a driving method, a computer device, and a storage medium.
Background
The driving architecture mode of the current display device mainly uses a panel factory to provide a display module driving scheme and a complete machine factory to provide scalar (image scaling) back end driving independent design scheme.
As shown in fig. 1, the scalar control chip is disposed on the scalar driving board, the scalar control chip is directly connected to the processor, the timing controller Tcon is disposed on the module driving board, the timing controller is connected to the display panel, and the scalar control chip and the timing controller transmit through Low-Voltage differential signaling (LVDS, low-Voltage DIFFERENTIAL SIGNALING). Due to the relative independence of the two, there is no interoperability in design, and the complexity of the design is also increased by the two chips at the cost of the design.
Disclosure of Invention
The present invention is directed to a driving board, a display device, a driving method, a computer apparatus, and a storage medium to solve at least one of the problems of the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a first aspect of the present invention provides a driving board for a display device, comprising a signal input interface connected to a processor of the display device, a timing controller, and a signal output interface connected to a display panel of the display device,
The signal input interface is used for acquiring a video source signal sent by the processor;
The time schedule controller is used for decoding and image processing the input video source signals and outputting the processed video display signals to a display panel of the display device through the signal output interface,
Wherein the timing controller includes:
the micro control unit is used for decoding the input video source signal to generate a video decoding signal;
An image scaling unit for performing scaling processing on the video decoding signal and generating a video image signal; and
And the image enhancement unit is used for carrying out enhancement processing on the video image signal of the image scaling unit so as to generate the video display signal, the resolution of the display image generated according to the video image signal meets the resolution of the display panel, and the display parameter of the display image generated according to the video display signal meets the preset display parameter.
Further, the driving board also comprises an adjusting instruction interface for receiving the adjusting instruction output by the display panel according to the adjusting operation and transmitting the adjusting instruction to the image enhancement unit,
The image enhancement unit is further configured to correct the video image signal according to a preset gamma curve so that a display image displayed on the display panel is a first display parameter, and/or adjust the video image signal according to the adjustment instruction so that the display image displayed on the display panel is a second display parameter, so that the display image displayed on the display panel meets the preset display parameter.
Further, the image enhancement unit is further configured to perform a dynamic illumination rendering process, a frame rate conversion process, or a special picture process on the video image signal to adjust a first display parameter of the display image, and/or perform a color temperature, brightness, contrast, color, or sharpness adjustment on the video image signal according to the adjustment instruction to adjust a second display parameter of the display image.
Further, the driving board also comprises a power interface connected with the power adapter of the display device, a power management chip, a light source driving unit and a first power supply circuit connected with the power interface,
The power interface is used for accessing the battery voltage signal output by the power adapter;
The first power supply circuit is respectively connected with the power management chip, the light source driving unit and the time sequence controller and is used for converting the accessed battery voltage signals into voltage signals corresponding to the power management chip, the light source driving unit and the time sequence controller:
the drive plate further includes:
The second power supply circuit is positioned between the power management chip and the display panel and is used for supplying power to the display panel through the power management chip;
A third power supply circuit between the power management chip and the time schedule controller for supplying power to the time schedule controller through the power management chip,
The voltage signal of the time sequence controller connected through the first power supply circuit is larger than the voltage signal connected through the third power supply circuit.
Further, the timing controller further includes:
The light source control unit is used for outputting a light source enabling signal and a light source adjusting signal according to the light source adjusting instruction from the processor, which is acquired by the signal input interface;
The driving plate includes:
And the light source driving unit is connected with the light source control unit and is used for boosting according to the voltage signal of the accessed first power supply circuit to generate a voltage driving signal output to the display panel, responding to the light source enabling signal to control the working state of the display panel, and controlling the luminous brightness of the display panel according to the light source adjusting signal.
Further, the first power supply circuit comprises a first sub power supply circuit positioned between the power interface and the power management chip and a second sub power supply circuit positioned between the power interface and the timing controller,
The time schedule controller is also used for outputting an enabling voltage reduction signal to the first sub power supply circuit when the battery voltage signal accessed by the second sub power supply circuit is smaller than a preset threshold value, and enabling the power management chip to output the enabling voltage reduction signal to the first sub power supply circuit according to the received enabling voltage reduction signal,
The power management chip is also used for stopping supplying power to the time sequence controller through the third power supply circuit according to the enabling step-down signal.
A second aspect of the present invention proposes a display device comprising:
A processor for outputting a video source signal;
A driving board according to a first aspect of the present invention for decoding and image processing the input video source signal to generate a video display signal;
and the display panel is used for receiving the video display signals through the signal output interface and displaying the video display signals.
Further, the processor is further configured to output an audio source signal;
The display device further includes an audio player for decoding the input audio source signal to output a sound signal;
Or alternatively
The driving board further includes an audio decoding unit for decoding the input audio source signal to output a sound signal.
Further, the display panel further comprises a man-machine interaction unit, and the man-machine interaction unit is used for responding to the adjustment operation of a user to generate an adjustment instruction and transmitting the adjustment instruction to the image enhancement unit through an adjustment instruction interface of the driving plate.
A third aspect of the present invention provides a driving method applied to a driving board of a display device, the driving board including a signal input interface, a timing controller, and a signal output interface,
The method comprises the following steps:
the signal input interface acquires a video source signal sent by a processor of the display device;
The time schedule controller decodes and processes the input video source signals, and outputs the processed video display signals to a display panel of the display device through the signal output interface;
The timing controller decodes and image processes the input video source signal, and outputs a video display signal generated after the processing to a display panel of the display device through the signal output interface, and the timing controller further includes:
The micro control unit decodes the input video source signal to generate a video decoding signal;
an image scaling unit performs scaling processing on the video decoding signal and generates a video image signal; and
The image enhancement unit performs enhancement processing on the video image signal of the image scaling unit to generate the video display signal, the resolution of the generated display image according to the video image signal meets the resolution of the display panel, and the first display parameter of the display image generated according to the video display signal meets a first preset display parameter.
Further, the drive board also comprises an adjusting instruction interface,
The method further comprises the steps of:
the adjusting instruction interface receives the adjusting instruction output by the display panel according to the adjusting operation and transmits the adjusting instruction to the image enhancing unit,
The image enhancement unit corrects the video image signal according to a preset gamma curve to enable the display panel to display the display image of the first display parameter, and/or adjusts a second display parameter of the display panel according to the adjusting instruction to enable the display image displayed on the display panel to meet the second preset display parameter;
Further, the driving board further comprises a power interface connected with a power adapter of the display device, a power management chip, a light source driving unit and a first power supply circuit connected with the power interface, wherein the first power supply circuit is respectively connected with the power management chip, the light source driving unit and the time schedule controller, the driving board further comprises a second power supply circuit connected with the power management chip and the display panel, and a third power supply circuit positioned between the power management chip and the time schedule controller;
the power interface is connected with a battery voltage signal output by the power adapter;
the first power supply circuit converts the accessed battery voltage signal into a voltage signal corresponding to the power management chip, the light source driving unit and the time sequence controller;
The second power supply circuit supplies power to the display panel through the power management chip;
The third power supply circuit supplies power through the time sequence controller of the power management chip, wherein the voltage signal accessed by the time sequence controller through the first power supply circuit is larger than the voltage signal accessed by the third power supply circuit.
A fourth aspect of the present invention provides a driving method applied to the display device according to the second aspect of the present invention, the method comprising:
The processor outputs a video source signal;
The driving board decodes and processes images according to the input video source signals, so as to generate video display signals;
and the display panel receives the video display signal through the signal output interface and displays the video display signal.
A fifth aspect of the invention proposes a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the third or fourth aspect of the invention when executing the program.
A sixth aspect of the invention proposes a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method according to the third or fourth aspect of the invention.
The beneficial effects of the invention are as follows:
According to the embodiment of the invention, the functions of the time schedule controller are subjected to modularized reconstruction, so that the time schedule controller has a time schedule control function of outputting time schedule signals by using the time schedule control unit and also has an image processing function of processing images by using the image scaling unit and the image enhancement unit, the time schedule controller can directly process video signals, retransmission is not needed in the image processing process, the transmission efficiency is effectively improved, and the refresh rate of display products is improved. The driving plate constructed based on the time sequence controller is designed on the structure, the structure of the double driving plate is simplified into one driving plate, the cost and the space volume of the double driving plate are reduced, the structure of the control plate is simplified, the transmission transfer can be avoided, and the transmission efficiency is improved; functionally, the timing control function and the image processing function are combined on the same driving board, and the repeated functions are eliminated.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 shows an architecture diagram of a dual driving board display device of a related art display device;
FIG. 2a shows a schematic diagram of the architecture of a drive board according to an embodiment of the invention;
FIG. 2b is a schematic diagram of a driving board according to another embodiment of the present invention;
Fig. 3a is a schematic diagram illustrating a processing procedure of an audio/video source signal accessed by a control chip Scalar in the related art;
FIG. 3b is a schematic diagram showing a process of a timing controller according to the related art;
FIG. 4 shows a schematic diagram of the architecture of a drive plate according to another alternative embodiment of the present invention;
FIG. 5 shows a schematic diagram of the architecture of a drive plate according to another alternative embodiment of the present invention;
Fig. 6 is a schematic diagram showing a circuit configuration of a driving board in a specific example of the present invention;
FIG. 7 is a schematic diagram of a display device according to another embodiment of the invention;
fig. 8 shows a schematic step diagram of a driving method applied to a driving board according to another embodiment of the present invention;
Fig. 9 is a schematic diagram showing steps of a driving method applied to a display device according to another embodiment of the present invention;
Fig. 10 shows a schematic structural diagram of a computer device according to another embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to examples and drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.
Based on the foregoing discussion, as shown in fig. 1, the independent designs of the scalar driving board and the module driving board in the related art, the scalar driving board and the processor can be directly connected, but cannot be directly connected with the display panel, and the interfaces of different processors have diversity, so that the application range of the scalar driving board is limited, while the module driving board and the display panel are directly connected, but cannot be directly connected with the processor end, in the actual manufacturing, only the front end module is assembled with the processor with the scalar driving board, and due to the adoption of two control boards, the overall appearance thickness of the display device applying the scheme is thicker, and the price, thickness and application range of the product are affected.
A first embodiment of the present invention proposes a driving board for a display device, as shown in fig. 2a, the driving board comprising a signal input interface connected to a processor of the display device, a timing controller, and a signal output interface connected to a display panel of the display device, wherein,
The signal input interface is used for acquiring a video source signal sent by the processor;
The time schedule controller is used for decoding and image processing the input video source signals and outputting the processed video display signals to a display panel of the display device through the signal output interface,
Wherein the timing controller includes: the timing control unit is used for outputting timing signals to drive the display panel to display, and the timing signals output by the timing control unit comprise horizontal starting signals, vertical starting signals, clock signals, data loading signals, pixel data signals and the like to drive the display panel to display normally;
the micro control unit is used for decoding the input video source signal to generate a video decoding signal;
an image scaling unit for scaling the video decoded signal and generating a video image signal; and
And the image enhancement unit is used for carrying out enhancement processing on the video image signal of the image scaling unit so as to generate the video display signal.
According to the embodiment of the invention, the functions of the time schedule controller are subjected to modularized reconstruction, so that the time schedule controller has a time schedule control function of outputting time schedule signals by using the time schedule control unit, also has an image processing function of processing images by using the image scaling unit and the image enhancement unit, and can directly process video signals without retransmission in the image processing process, thereby effectively improving the transmission efficiency and the refresh rate of display products, and having wide application prospects.
Based on the structural design of the time schedule controller, the time schedule controller and the signal input interface form an integral structure of the driving plate, compared with the double-driving plate structure shown in fig. 1, the embodiment of the invention structurally simplifies the double-driving plate structure into one driving plate, reduces the cost and the space volume of the double-driving plate, can realize direct connection between one end and the processor by using one driving plate, and the other end and the display panel, and the direct connection design scheme simplifies the structure of the control plate, can avoid transmission transfer and improve the transmission efficiency; functionally, the original functions of the double driving boards are integrated on the same driving board, for example, the time sequence control function and the image processing function are combined, the repeated functions are removed, the functions of the two chips are simplified, and the complexity is reduced. In an implementation embodiment, the signal input interface is a signal interface such as DP, HDMI, and VGA, and is used for directly accessing the video source signals of the DP, HDMI, and VGA protocols of the processor, and the signal output interface outputs a Mini-lvds signal.
In a specific example, as shown in fig. 1, the related art processor is connected to the Scalar control board, and the interfaces between the two interfaces are mostly DP, HDMI, and VGA interfaces; the Scalar control panel is connected with the module driving panel, and most interfaces between the Scalar control panel and the module driving panel are LVDS, eDP, VBO signal interfaces; the direct connection of the driving board where the time sequence controller is located and the display card of the processor cannot be realized, and after the Scalar control board and the driving board where the time sequence controller is located are integrated to form one control board, the direct connection of the driving board and the processor can be realized, and different processors can be directly connected by using the wide application of DP, HDMI and VGA interfaces in the processor, so that the application has applicability. The other end is directly connected with the display panel, so that the overall performance of the whole machine is improved.
In addition, the embodiment of the present invention reconstructs the functions of the timing controller, and the functions performed by the image enhancement unit of the embodiment of the present invention will now be described with related technology. Fig. 3a shows a process of processing an audio/video source signal of the Scalar chip in the related art, as shown in fig. 3a, a signal input interface (RX) of the Scalar chip can acquire the audio/video source signal from the processor, and output the audio source signal and the video source signal to different lines for processing, and the audio decoding unit decodes the audio source signal and outputs the decoded audio source signal to an audio simulator of the display device. The scaling unit performs a scaling process on the video source signal such that the video source signal is scaled to a resolution size supported by the display panel.
Further, since the Scalar chip is directly connected to the processor, the processing unit can further perform image enhancement on the image directly by means of on-screen menu (OSD), and output the Scalar video signal after performing the image enhancement processing to the timing controller Tcon shown in fig. 3b through the LVDS output interface (TX), and the processing is performed by the timing controller.
Fig. 3b shows a process of processing an accessed Scalar video signal by a timing controller Tcon of the related art, as shown in fig. 3b, the timing controller Tcon acquires Scalar video signal through a LVDS, eDP, VBO input interface (RX), a processing unit performs simple processing of image data, such as gamma correction, on the acquired video signal, and outputs a processed video display signal to a display panel through a Mini-Lvds output interface. Based on the processing procedure of fig. 3b, the timing controller has a certain image enhancement function, but the image enhancement function of the timing controller is simpler than that of the Scalar chip with more powerful function, and the function of the timing controller is mainly to output the timing control signal, that is, for complex image processing, the timing controller still needs to be executed by the Scalar chip.
Therefore, scalar chips and timing controllers are necessary for their respective main functions to perform. On the other hand, in the transmission process based on the related art, since the Scalar chip and the timing controller Tcon are located on different driving boards, the process from the video source signal from the processor to the process of outputting the video display signal to the display panel is performed, in which different main processes are performed on the video source signal, and the Scalar video signal received by the Tcon is limited to a video signal with a determined passive receiving resolution, and the whole process also needs to perform signal transmission through LVDS, so that the data transmission efficiency, the refresh rate, and the signal accuracy are greatly affected.
Therefore, the embodiment of the invention designs the architecture of the time sequence controller, and decodes the input video source signal by utilizing the micro control unit to generate a video decoding signal; the image scaling unit is used for performing scaling processing on the video decoding signals and generating video image signals, so that the function of Scalar chips is realized; and performing enhancement processing on the video image signal of the image scaling unit by using the image enhancement unit to generate the video display signal.
In an alternative embodiment, as shown in fig. 2b, the timing control unit, the micro control unit, the image scaling unit and the image enhancement unit are integrated on the same driver chip.
The integration in this embodiment may refer to that each of the above functional units of the timing controller is provided on one driving chip, and then integrally packaged to form an integral packaging structure of the driving chip; the integration of the embodiment may also refer to setting the above-mentioned each functional unit of the timing controller on different driving chips, implementing connection of each functional unit through internal pins and wires of different driving chips, and then packaging the above-mentioned multiple driving chips into a complete driving chip with the functions executed by the timing controller of the present invention, where a person skilled in the art selects different integration modes according to practical applications, and will not be described herein again.
Further, in an optional embodiment, the image enhancing unit is further configured to meet a resolution of the display panel according to a resolution of the generated display image of the video image signal, and the display parameter of the display image generated according to the video display signal meets a preset display parameter.
With this arrangement, the present embodiment realizes a complex image processing function for video image signals inside the timing controller, without receiving a display image with a fixed resolution outputted by Scalar chips as an input, but can directly receive resolution information of a video source signal of a processor through an image enhancement unit, and a scaling design for the video source signal can be performed inside the timing controller, so that the resolution of a generated display image according to the video image signal satisfies the resolution of the display panel, and further, the display parameters of the display image generated according to the video display signal satisfy preset display parameters, thereby ensuring that the display image generated according to the video display signal outputted last has accurate resolution information and has a good display effect.
Therefore, the time schedule controller of the embodiment of the invention has the time schedule control function of outputting time schedule signals and the image processing function of carrying out complex processing on images, and the processing process of the video source signals is arranged in the time schedule controller, so that the processing time on different devices can be reduced, the signal noise in the transmission process can be reduced, and the image transmission efficiency and the refresh rate can be improved.
In a specific example, under the same parameter design, the refresh rate of the display device with the structure shown in fig. 3a and 3b is 75Hz, so that the refresh rate of the display device applied to the driving board of the embodiment of the present invention can be increased to 100-120 Hz, and the refresh rate is greatly improved.
In an alternative embodiment, as shown in fig. 4, the driving board further includes an adjustment command interface for receiving an adjustment command output by the display panel according to an adjustment operation and transmitting the adjustment command to the image enhancement unit,
The image enhancement unit is further configured to correct the video image signal according to a preset gamma curve to adjust a first display parameter of the display image, and in another optional embodiment, the image enhancement unit is further configured to perform a dynamic illumination rendering process, a frame rate conversion process, or a special picture process, and an overdrive process on the video image signal to adjust the first display parameter of the display image.
In one specific example, gamma curve correction enables editing of a gamma curve of an accessed video source signal, thereby performing nonlinear tone editing of an image, detecting dark portions and light portions in the image signal, and increasing the ratio of the dark portions and the light portions, thereby improving the contrast of the generated display image.
In a specific example, dynamic light rendering (HDR) is a processing technology for improving brightness and contrast of an image, the HDR can provide more dynamic range and image details, and a final HDR image is synthesized by using an LDR image with optimal details corresponding to each exposure time, so that a visual effect in a real environment can be better reflected;
In a specific example, frame rate conversion (RFC) works on video source signals of two adjacent pictures, and a processor generates a transition picture between the two pictures to achieve a smoother visual effect.
In one specific example, special picture Processing (PDF) is used to detect special pictures in a video signal to account for cross-talk of the special pictures.
In one specific example, the overdrive processing (Overdrive) can increase the screen response speed and improve the display quality by performing the overdrive processing on the accessed video source signal. Based on the processing, the invention can improve the quality of the generated display image through a plurality of processing modes of the video source signals.
And, on the basis of the processing of the video source signal by the image enhancement unit, the image enhancement unit is further configured to correct the video image signal according to a preset gamma curve so that a display image displayed on the display panel is a first display parameter, and/or adjust the video image signal according to the adjustment instruction so that the display image displayed on the display panel is a second display parameter, so that the display image displayed on the display panel meets the preset display parameter.
In this embodiment, the first adjustment performed by the image enhancement unit adjusts the internal adjustment in the timing controller, and the second adjustment performed by the image enhancement unit is an adjustment performed according to an adjustment instruction of a user, so that the image enhancement unit can also adjust the video source signal according to the user's needs on the basis of realizing that the display image itself has a good display effect, thereby enabling the display image displayed on the display panel to satisfy the user's setting.
In an alternative embodiment, the image enhancement unit adjusts the color temperature, brightness, contrast, color or sharpness of the video image signal according to the adjustment instruction to adjust a second display parameter of the display image.
That is, the preset display parameter may be a display parameter at which optimal image processing is achieved according to the respective processing functions of the image enhancement unit before the image enhancement unit is not adjusted according to the adjustment instruction. After the image enhancement unit adjusts according to the adjusting instruction, the preset display parameters are display parameters when the optimal image processing is realized by each processing function of the image processing unit determined based on the adjusting instruction.
That is, the second display parameter of the display image generated at the second adjustment is better than the first display parameter of the display image generated at the first adjustment. That is, the embodiment of the invention processes the video source signals in multiple ways through image adjustment modes at different stages, so that the display image displayed on the display panel has excellent display performance.
It should be noted that, in the embodiment of the present invention, regarding the sequence of different image processing procedures of the image enhancement unit, the embodiment of the present invention is not limited, for example, the sequence of dynamic illumination rendering processing, frame rate conversion processing, special picture processing, or overdrive processing when adjusting the first display parameter is not limited, and for example, the sequence of color temperature, brightness, contrast, color, or sharpness adjustment when adjusting the second display parameter is not limited, and the embodiment of the present invention is not limited to the sequence of processing procedures in the processing procedures that enable the display image to meet the preset display parameter, for example, the adjustment of the second display parameter is performed first or the adjustment of the first display parameter is performed first.
In an implementation embodiment, the display panel further includes a man-machine interaction unit, for example, an interaction key disposed on the display panel, the user performs man-machine interaction through an operation of the interaction key, for example, a pressing operation, a selecting operation, or a deselecting operation, and the timing controller generates an adjustment instruction in response to an adjustment operation of the user, and transmits the adjustment instruction to the image enhancement unit through an adjustment instruction interface of the driving board, so that the image enhancement unit processes the image according to the user operation.
In another embodiment, the timing controller includes an adjustment menu unit, configured to obtain, through the adjustment instruction interface, an adjustment instruction generated by an adjustment operation of a user, and display an adjustment menu on the display panel according to the adjustment instruction to obtain an adjustment operation of the user generated according to the adjustment menu, generate an adjustment instruction according to the adjustment operation, and transmit the adjustment instruction to the image enhancement unit through the adjustment instruction interface of the driving board, so that the image enhancement unit processes an image according to the user operation. In this embodiment, by providing the adjustment menu unit in the timing controller, a scheme for performing image processing by software is formed.
The power supply circuit is also a link of the design of the driving board, which ensures the normal operation between the driving board and the display panel, as shown in fig. 1, compared with the power supply design of the dual driving board in the related art, a separate alternating current-direct current (ACDC) conversion circuit is needed, so that the connected 220V high voltage power is reduced and converted into direct current, the circuit is complex, and the volume of the display device formed is also larger due to the larger volume of the separately designed reduced voltage power, thereby occupying space.
Therefore, the embodiment of the invention designs one driving board after integrating functions. In an alternative embodiment, as shown in fig. 5, the driving board further includes a power interface connected to a power adapter of the display device, a power management chip, a light source driving unit, and a first power supply circuit connected to the power interface,
The power interface is used for accessing the battery voltage signal output by the power adapter;
The first power supply circuit is respectively connected with the power management chip, the light source driving unit and the time sequence controller and is used for converting the accessed battery voltage signals into voltage signals corresponding to the power management chip, the light source driving unit and the time sequence controller:
in an alternative embodiment, as shown in fig. 5 and 6, the driving plate further includes:
The second power supply circuit is positioned between the power management chip and the display panel and is used for supplying power to the display panel through the power management chip;
A third power supply circuit between the power management chip and the time schedule controller for supplying power to the time schedule controller through the power management chip,
The voltage signal of the time sequence controller connected through the first power supply circuit is larger than the voltage signal connected through the third power supply circuit.
As shown in fig. 5 and fig. 6, the power supply circuit in the embodiment of the invention cancels the separately designed step-down circuit, redesigns the circuit structure, can directly utilize the power adapter to supply power to each unit in the driving board and the display panel, can realize the normal operation of the components by utilizing the power adapter with smaller volume, and the power adapter can be directly connected with a high-voltage power supply, thereby having wide application range, further reducing the space occupation of the separately designed power supply circuit and leading the whole appearance of the display device to be lighter, thinner and more attractive.
In a normal operation state, the power management chip, the time schedule controller and the light source driving unit access voltage signals from the power interface through the first power supply circuit, the power management chip supplies power to the display panel through the second power supply circuit, and in a specific example, as shown in fig. 6, the first power supply circuit comprises a first sub power supply circuit located between the power interface and the power management chip, a second sub power supply circuit located between the power interface and the time schedule controller, and a third sub power supply circuit located between the power interface and the light source driving unit, so that normal operation of each device is realized.
Further, in the embodiment of the present invention, the second sub power supply circuit and the third power supply circuit are utilized to output different voltage signals to supply power to the timing controller, for example, the voltage signal output to the timing controller through the third power supply circuit is smaller than the voltage signal output to the timing controller through the second sub power supply circuit, that is, the timing controller works by receiving the voltage signals from the two power supply circuits, so as to realize a driving mode with low power consumption. In a specific example, the voltage signal of the second sub power supply circuit is 3.3V, and the voltage signal of the third power supply circuit is 1.1V.
Further, after the circuit is improved according to the embodiment of the invention, not only the power supply of the display panel but also the display state control and the working state control of the display panel, such as the working state of a power-on machine, a light machine and the brightness during working, are realized.
Thus, in an alternative embodiment, as shown in fig. 5, the timing controller further comprises:
And the light source control unit is used for outputting a light source enabling signal and a light source adjusting signal according to the light source adjusting instruction from the processor, which is acquired by the signal input interface. In an alternative embodiment, when the timing controller further includes a light source control unit as shown in fig. 5, the timing control unit, the micro control unit, the image scaling unit, the image enhancement unit, and the light source control unit are integrated on the same driving chip, so as to implement an integrated function of the timing controller. The integration of the present embodiment is identical to the foregoing description, and will not be repeated here.
As shown in fig. 5, in this structure, the driving plate includes:
And the light source driving unit (LED DRIVER IC) is connected with the light source control unit and is used for boosting according to the voltage signal of the accessed first power supply circuit to generate a voltage driving signal output to the display panel, responding to the light source enabling signal to control the working state of the light source module of the display panel, and controlling the luminous brightness of the light source module according to the light source adjusting signal. The light source driving unit is connected with the light source module of the display panel through a light source module interface on the driving plate, and outputs the signals to the light source module of the display panel.
In this embodiment, the light source enable signal is used to control the working state of the display panel, for example, in the on working state or the off working state, the light source adjusting signal is used to control the display brightness of the display panel, for example, in the highlight environment, to adaptively increase the display brightness, and in the low brightness environment, to adaptively decrease the display brightness, thereby realizing the multifunctional display of the display panel.
In one embodiment, the light source adjusting signal is a pulse width modulation square wave signal (PWM signal), the timing controller TCON outputs the pulse width modulation square wave signal (PWM) to the light source driving unit, and the timing controller adjusts the duty ratio of the pulse width modulation square wave signal to control the output current, so as to realize DC dimming, thereby controlling the display brightness of the display panel, specifically, the display brightness of the display module.
Further, in another possible embodiment of the present invention, as shown in fig. 6, the timing controller is further configured to output an enable step-down signal to the first sub power supply circuit when the voltage signal accessed through the second sub power supply circuit is less than a preset threshold, and cause the power management chip to receive the enable step-down signal through the first sub power supply circuit,
The power management chip is also used for stopping supplying power to the time sequence controller through the third power supply circuit according to the enabling step-down signal.
In this embodiment, when the battery voltage is smaller than the preset voltage threshold, the timing controller determines according to the obtained voltage signal of the first power supply circuit (the second sub power supply circuit), so as to control the working states of the driving board and the display panel, and make the driving board and the display panel in a dormant state, so that abnormal driving caused by that the driving board and the display panel cannot be driven due to the fact that the battery voltage signal is lower is avoided.
In this embodiment, in the sleep state, the first sub power supply circuit stops supplying power to the power management chip, the third sub power supply circuit stops supplying power to the light source driving circuit, the second sub power supply circuit normally supplies power to the timing controller, the second power supply circuit stops supplying power to the light source driving circuit, and the third power supply circuit stops supplying power to the timing controller, that is, in the sleep state, only the timing controller is in the working state through the second sub power supply circuit, so that the sleep mode with low power consumption is realized.
In another alternative embodiment of the present invention, as shown in fig. 6, the timing control unit is further configured to output a gate driving signal so that the power management chip outputs the gate driving signal to the display panel through the second power supply circuit.
The driving board further comprises an analog power supply voltage calibration unit for calibrating the analog power supply voltage signal output by the power supply management chip to output an analog power supply voltage signal meeting the standard working voltage of the display panel.
In the embodiment of the invention, the grid time sequence driving function of the time sequence controller and the image processing function of the Scalar chip are fused and jointly designed on one driving board, compared with the structural design of the double driving boards shown in fig. 1, the Scalar chip does not have the function of GOA timing, so that direct connection with the display panel cannot be realized, and on the basis of the driving board structure of the embodiment of the invention, the direct connection design with the display panel can be realized, so that the frame structure integrated design of the driving board and the display panel is realized, and an exemplary manufacturer for manufacturing the display panel can directly manufacture the display panel with the driving board, and on the basis that the interface between the other end of the driving board and the processor has a universal interface, the direct use of the display panel with the embodiment of the invention can be realized.
Further, in an achievable embodiment, the processor is further configured to output an audio source signal, and the driving board further includes an audio decoding unit configured to decode the input audio source signal to output a sound signal. In this embodiment, the audio decoding architecture of Scalar chips is also fused with the driving board where the timing controller is located, so that the driving panel has an audio decoding function, and the integrity of the driving board is further improved.
In another alternative embodiment, the drive board may also eliminate the design of the audio decoding unit, and decode with an audio player directly connected to the processor, thereby reducing the cost of design on the drive board and simplifying the circuit structure.
It should be noted that, a person skilled in the art can select a corresponding scenario to perform the design according to the above implementation, and the description is omitted herein.
In a specific example, taking the signal input interface as an HDMI interface and the signal output interface as a mini-Lvds interface as an example, as shown in fig. 6, a schematic structural diagram of a specific driving board according to an embodiment of the present invention is shown.
The power interface can be directly connected to the power adapter, and the power interface is connected to a plurality of first power supply circuits, for example, a first sub power supply circuit connecting the power interface and the power management chip, a second sub power supply circuit connecting the power interface and the timing controller, and a third sub power supply circuit connecting the power interface and the light source driving unit, so as to ensure the normal operation of each component. In one specific example, the first and second sub power supply circuits are step-down circuits, and the third sub power supply circuit is a non-step-down circuit. For example, the battery voltage signal of the power adapter connected to the power interface is 12V, which does not conform to the working voltage of each component, so the first sub power supply circuit steps down 12V to 5V to supply to the power management chip, the second sub power supply circuit steps down 12V to 3.3V to supply to the timing controller, and the third sub power supply circuit directly supplies the battery voltage signal of 12V to the light source driving unit.
The light source driving unit boosts the battery voltage signal of the third sub power supply circuit to generate a voltage driving signal driving the display panel, which is input to the backlight module of the display panel, for example, the light source driving unit boosts the battery voltage signal of 12V to 27V.
The power management chip supplies power to the source driving chip of the display panel through a second power supply circuit, wherein the second power supply circuit is a voltage reduction circuit, and the second power supply circuit reduces the voltage of 5V to 3.3V or 2.5V to supply power to the display panel, and particularly to supply power to the source driving chip of the display panel. The power management chip is also used for outputting the accessed battery voltage signal to the analog voltage calibration unit, so that the analog voltage calibration unit generates an analog working voltage output to the pixel circuit of the display panel. The analog operating voltage of the pixel circuit of the display panel is, for example, 1 to 14V.
The time sequence controller realizes control of different working states according to the second sub power supply circuit and the third power supply circuit
Under normal working conditions, the second sub power supply circuit and the third power supply circuit are utilized to output different voltage signals to supply power to the time sequence controller, the voltage signal output by the second sub power supply circuit to the time sequence controller is 3.3V, the voltage output by the second sub power supply circuit to the time sequence controller is reduced to 3.3V from 12V output by the power interface, the voltage signal output by the third power supply circuit to the time sequence controller is 1.1V, the voltage signal output by the third power supply circuit to the time sequence controller is reduced to 1.1V from 5V output by the power management chip, and the driving of the time sequence controller is jointly realized. In the sleep state, only the time sequence controller is in a working state through the second sub power supply circuit, and other power supply circuits are in a state of stopping power supply, so that a low-power-consumption sleep mode is realized.
The timing controller responds to the video source signals accessed by the HDMI interface, processes the video source signals by utilizing an internal image scaling unit and an image enhancement unit, and transmits generated video display signals to the display panel through a mini-Lvds output interface, and the generated video display signals are transmitted to a plurality of source drive chips of the display panel.
In an alternative embodiment, the timing controller includes a gate driving unit for outputting a gate driving signal to cause the power management chip to input the gate driving signal to the display panel, specifically, to the source driving chip of the display panel.
Therefore, based on the driving board of the embodiment of the invention, the scalar chip and the chip of the time sequence controller are integrated structurally, and one driving board can be used for directly connecting one end with the processor and the other end with the display panel, and the direct connection design scheme simplifies the structure of the control board, can avoid transmission transfer and improves the transmission efficiency. Functionally, the scalar chip and the time sequence controller are combined, repeated functions are removed, the functions of the two chips are simplified, and complexity is reduced; the internal part of the time sequence controller can directly process video signals including scalar chip functions, retransmission is not needed in the image processing process, and the transmission efficiency and the refresh rate are effectively improved.
Another embodiment of the present invention provides a display device, as shown in fig. 7, including:
A processor for outputting a video source signal;
The driving board according to the previous embodiment of the present invention is configured to decode and image-process the input video source signal, thereby generating a video display signal;
and the display panel is used for receiving the video display signals through the signal output interface and displaying the video display signals.
According to the display device provided by the embodiment of the invention, the integrated design of the processor, the driving plate and the display panel can be realized, a manufacturer for manufacturing the display panel with the driving plate can directly manufacture the display panel, and the display panel with the embodiment of the invention can be directly used on the basis that the interface between the other end of the driving plate and the processor is provided with a universal interface.
In an alternative embodiment, the processor is further configured to output an audio source signal;
The display device further includes an audio player for decoding the input audio source signal to output a sound signal. In this embodiment, the driving board cancels the design of the audio decoding unit, and decodes by using the audio player directly connected with the processor, so that the cost of the design on the driving board can be reduced, and the circuit structure is simplified.
In another alternative embodiment, the driving board further includes an audio decoding unit for decoding the input audio source signal to output a sound signal. In this embodiment, the audio decoding architecture of Scalar chips is also fused with the driving board where the timing controller is located, so that the driving panel has an audio decoding function, and the integrity of the driving board is further improved.
In an optional embodiment, the display panel further includes a man-machine interaction unit, configured to generate an adjustment instruction in response to an adjustment operation of a user, and transmit the adjustment instruction to the image enhancement unit through an adjustment instruction interface of the driving board, where the display device in this embodiment performs man-machine interaction with the display panel, and adjusts the video source signal according to a user requirement on the basis of achieving a good display effect of the display image, so that the display image displayed on the display panel can meet a user setting.
Another embodiment of the present invention provides a driving method applied to a driving board of a display device, where the driving board includes a signal input interface, a timing controller, and a signal output interface, for example, the driving board of the foregoing embodiment of the present invention, as shown in fig. 8, the method includes:
the time sequence control unit of the time sequence controller outputs a time sequence signal to drive the display panel of the display device to display;
the signal input interface acquires a video source signal sent by a processor of the display device;
The time schedule controller decodes and processes the input video source signals, and outputs the processed video display signals to a display panel of the display device through the signal output interface; the "the timing controller decodes and image processes the input video source signal, and outputs the processed video display signal to the display panel of the display device through the signal output interface" further includes:
The micro control unit decodes the input video source signal to generate a video decoding signal;
an image scaling unit performs scaling processing on the video decoding signal and generates a video image signal; and
The image enhancement unit performs enhancement processing on the video image signal of the image scaling unit to generate the video display signal, the resolution of the generated display image according to the video image signal meets the resolution of the display panel, and the first display parameter of the display image generated according to the video display signal meets a first preset display parameter.
In an alternative embodiment, the drive plate further includes an adjustment instruction interface, the method further comprising: the adjusting instruction interface receives the adjusting instruction output by the display panel according to the adjusting operation and transmits the adjusting instruction to the image enhancing unit,
The image enhancement unit corrects the video image signal according to a preset gamma curve to enable a display image displayed on the display panel to be a first display parameter, and/or adjusts the video image signal according to the adjusting instruction to enable the display image displayed on the display panel to be a second display parameter, so that the display image displayed on the display panel meets the preset display parameter.
In an alternative embodiment, the driving board further includes a power interface connected to a power adapter of the display device, a power management chip, a light source driving unit, and a first power supply circuit connected to the power interface, the first power supply circuit being connected to the power management chip, the light source driving unit, and the timing controller, respectively, the driving board further includes a second power supply circuit connecting the power management chip and the display panel, and a third power supply circuit between the power management chip and the timing controller;
the power interface is connected with a battery voltage signal output by the power adapter;
the first power supply circuit converts the accessed battery voltage signal into a voltage signal corresponding to the power management chip, the light source driving unit and the time sequence controller;
The second power supply circuit supplies power to the display panel through the power management chip;
The third power supply circuit supplies power through the time sequence controller of the power management chip, wherein the voltage signal accessed by the time sequence controller through the first power supply circuit is larger than the voltage signal accessed by the third power supply circuit.
Based on the driving method of the driving board provided by the embodiment of the invention, the functions of scalar chips and a time sequence controller are combined, repeated functions are removed, the functions of the two chips are simplified, and the complexity is reduced; the internal part of the time sequence controller can directly process video signals including scalar chip functions, retransmission is not needed in the image processing process, and the transmission efficiency and the refresh rate are effectively improved.
Another embodiment of the present invention provides a driving method, and a display device applying the above embodiment of the present invention, the method includes:
The processor outputs a video source signal;
the driving board outputs a time sequence signal to drive a display panel of the display device to display;
The driving board decodes and processes images according to the input video source signals, so as to generate video display signals;
and the display panel receives the video display signal through the signal output interface and displays the video display signal.
According to the driving method of the display device, provided by the embodiment of the invention, the integrated driving of the processor, the driving plate and the display panel can be realized.
It should be noted that, the process and principle of the driving method of the display device in the embodiment of the present invention are similar to those of the driving board and the display device, and the relevant parts are referred to herein and are not repeated.
Another embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the driving method of the driving board or the driving method of the display device provided by the embodiment of the present invention.
In practical applications, the computer-readable storage medium may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this embodiment, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
As shown in fig. 10, another embodiment of the present invention provides a schematic structural diagram of a computer device. The computer device 12 shown in fig. 10 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.
As shown in FIG. 10, the computer device 12 is in the form of a general purpose computing device. Components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, micro channel architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Computer device 12 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by computer device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and/or cache memory 32. The computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 10, commonly referred to as a "hard disk drive"). Although not shown in fig. 10, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
The computer device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the computer device 12, and/or any devices (e.g., network card, modem, etc.) that enable the computer device 12 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. Moreover, computer device 12 may also communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet, through network adapter 20. As shown in fig. 10, the network adapter 20 communicates with other modules of the computer device 12 via the bus 18. It should be appreciated that although not shown in fig. 10, other hardware and/or software modules may be used in connection with computer device 12, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processor unit 16 executes various functional applications and data processing by running a program stored in the system memory 28, for example, implementing the driving method of the driving board or the driving method of the display device provided by the foregoing embodiment.
In the description of the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (18)
1. A drive board for a display device, comprising a signal input interface connected with a processor of the display device, a time schedule controller and a signal output interface connected with a display panel of the display device, wherein,
The signal input interface is used for acquiring a video source signal sent by the processor;
The time schedule controller is used for decoding and image processing the input video source signals and outputting the processed video display signals to a display panel of the display device through the signal output interface,
Wherein the timing controller includes:
The time sequence control unit is used for outputting a time sequence signal to drive the display panel to display;
the micro control unit is used for decoding the input video source signal to generate a video decoding signal;
An image scaling unit for performing scaling processing on the video decoding signal and generating a video image signal; and
And the image enhancement unit is used for carrying out enhancement processing on the video image signal so as to generate the video display signal.
2. The drive board according to claim 1, wherein the image enhancement unit is further configured to satisfy a resolution of the display panel according to a resolution of a generated display image of the video image signal, and wherein a display parameter of the display image generated according to the video display signal satisfies a preset display parameter.
3. The drive board according to claim 1, further comprising an adjustment instruction interface for receiving an adjustment instruction output by the display panel according to an adjustment operation and transmitting the adjustment instruction to the image enhancement unit,
The image enhancement unit is further configured to correct the video image signal according to a preset gamma curve so that a display image displayed on the display panel is a first display parameter, and/or adjust the video image signal according to the adjustment instruction so that the display image displayed on the display panel is a second display parameter, so that the display image displayed on the display panel meets the preset display parameter.
4. A drive board according to claim 3, wherein the image enhancement unit is further configured to perform a dynamic illumination rendering process, a frame rate conversion process or a special picture process on the video image signal to adjust a first display parameter of the display image, and/or perform a color temperature, brightness, contrast, color or sharpness adjustment on the video image signal according to the adjustment instruction to adjust a second display parameter of the display image.
5. The drive board of claim 1, further comprising a power interface connected to a power adapter of the display device, a power management chip, a light source driving unit, and a first power supply circuit connected to the power interface,
The power interface is used for accessing the battery voltage signal output by the power adapter;
The first power supply circuit is respectively connected with the power management chip, the light source driving unit and the time sequence controller and is used for converting the accessed battery voltage signals into voltage signals corresponding to the power management chip, the light source driving unit and the time sequence controller:
the drive plate further includes:
The second power supply circuit is positioned between the power management chip and the display panel and is used for supplying power to the display panel through the power management chip;
A third power supply circuit between the power management chip and the time schedule controller for supplying power to the time schedule controller through the power management chip,
The voltage signal of the time sequence controller connected through the first power supply circuit is larger than the voltage signal connected through the third power supply circuit.
6. The drive plate of claim 5, wherein the drive plate is configured to move the drive plate,
The timing controller further includes:
The light source control unit is used for outputting a light source enabling signal and a light source adjusting signal according to the light source adjusting instruction from the processor, which is acquired by the signal input interface;
The driving plate includes:
And the light source driving unit is connected with the light source control unit and is used for boosting according to the voltage signal of the accessed first power supply circuit to generate a voltage driving signal output to the display panel, responding to the light source enabling signal to control the working state of the display panel, and controlling the luminous brightness of the display panel according to the light source adjusting signal.
7. The drive board of claim 5, wherein the first power supply circuit includes a first sub power supply circuit between the power interface and the power management chip and a second sub power supply circuit between the power interface and the timing controller,
The time schedule controller is also used for outputting an enabling voltage-reducing signal to the first sub power supply circuit when the voltage signal accessed by the second sub power supply circuit is smaller than a preset threshold value, and enabling the power management chip to receive the enabling voltage-reducing signal through the first sub power supply circuit,
The power management chip is also used for stopping supplying power to the time sequence controller through the third power supply circuit according to the enabling step-down signal.
8. The driving board according to claim 5, wherein the timing control unit is further configured to output a gate driving signal such that the power management chip passes through the second power supply circuit to input the gate driving signal to the display panel.
9. The drive board of claim 5, wherein the timing control unit, the micro control unit, the image scaling unit, and the image enhancement unit are integrated on the same drive chip.
10. A display device, characterized in that the display device comprises:
A processor for outputting a video source signal;
The drive board according to any one of claims 1 to 9, for decoding and image processing the input video source signal, thereby generating a video display signal;
and the display panel is used for receiving the video display signals through the signal output interface and displaying the video display signals.
11. The display device of claim 10, wherein the display device comprises a display device,
The processor is also used for outputting an audio source signal;
The display device further includes an audio player for decoding the input audio source signal to output a sound signal;
Or alternatively
The driving board further includes an audio decoding unit for decoding the input audio source signal to output a sound signal.
12. The display device according to claim 10, wherein the display panel further comprises a man-machine interaction unit for generating an adjustment instruction in response to an adjustment operation by a user, and transmitting the adjustment instruction to the image enhancement unit through an adjustment instruction interface of the driving board.
13. A driving method is applied to a driving board of a display device, which is characterized in that the driving board comprises a signal input interface, a time schedule controller and a signal output interface,
The method comprises the following steps:
the time sequence control unit of the time sequence controller outputs a time sequence signal to drive the display panel of the display device to display;
the signal input interface acquires a video source signal sent by a processor of the display device;
The time schedule controller decodes and processes the input video source signals, and outputs the processed video display signals to a display panel of the display device through the signal output interface;
The timing controller decodes and image processes the input video source signal, and outputs a video display signal generated after the processing to a display panel of the display device through the signal output interface, and the timing controller further includes:
The micro control unit decodes the input video source signal to generate a video decoding signal;
an image scaling unit performs scaling processing on the video decoding signal and generates a video image signal; and
The image enhancement unit performs enhancement processing on the video image signal of the image scaling unit to generate the video display signal.
14. The method of claim 13, wherein the drive plate further comprises an adjustment command interface,
The method further comprises the steps of:
the adjusting instruction interface receives the adjusting instruction output by the display panel according to the adjusting operation and transmits the adjusting instruction to the image enhancing unit,
The image enhancement unit corrects the video image signal according to a preset gamma curve to enable the display panel to display the display image of the first display parameter, and/or adjusts the second display parameter of the display panel according to the adjusting instruction to enable the display image displayed on the display panel to meet the second preset display parameter.
15. The method of claim 13, wherein the driving board further comprises a power interface connected to a power adapter of a display device, a power management chip, a light source driving unit, and a first power supply circuit connected to the power interface, the first power supply circuit being connected to the power management chip, the light source driving unit, and the timing controller, respectively, the driving board further comprising a second power supply circuit connecting the power management chip to the display panel, and a third power supply circuit between the power management chip and the timing controller;
the power interface is connected with a battery voltage signal output by the power adapter;
the first power supply circuit converts the accessed battery voltage signal into a voltage signal corresponding to the power management chip, the light source driving unit and the time sequence controller;
The second power supply circuit supplies power to the display panel through the power management chip;
The third power supply circuit supplies power through the time sequence controller of the power management chip, wherein the voltage signal accessed by the time sequence controller through the first power supply circuit is larger than the voltage signal accessed by the third power supply circuit.
16. A driving method applied to the display device according to any one of claims 10 to 12, characterized by comprising:
The processor outputs a video source signal;
the driving board outputs a time sequence control signal to drive the display panel to display;
The driving board decodes and processes images according to the input video source signals, so as to generate video display signals;
and the display panel receives the video display signal through the signal output interface and displays the video display signal.
17. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the method of any one of claims 13-15 or the method of claim 16.
18. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 13 to 15 or the method of claim 16 when the program is executed by the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211521694.4A CN118116301A (en) | 2022-11-30 | 2022-11-30 | Driving board, display device, driving method, computer device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211521694.4A CN118116301A (en) | 2022-11-30 | 2022-11-30 | Driving board, display device, driving method, computer device and storage medium |
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| Publication Number | Publication Date |
|---|---|
| CN118116301A true CN118116301A (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211521694.4A Pending CN118116301A (en) | 2022-11-30 | 2022-11-30 | Driving board, display device, driving method, computer device and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118116301A (en) |
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- 2022-11-30 CN CN202211521694.4A patent/CN118116301A/en active Pending
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