CN111326115A - Display device and method for adjusting brightness of OLED spliced screen - Google Patents
Display device and method for adjusting brightness of OLED spliced screen Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims description 11
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- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/12—Synchronisation between the display unit and other units, e.g. other display units, video-disc players
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Abstract
The invention discloses a display device and a method for adjusting the brightness of an OLED spliced screen, wherein the display device for adjusting the brightness of the OLED spliced screen comprises a spliced screen formed by combining N OLED display screens, and the N OLED display screens are arranged in an array manner; n OLED display screen all is independent work, N OLED display screen includes: a system module; the display device for adjusting the brightness of the OLED spliced screen measures N current values of the OLED display screen under different gray scales, records results in the system module, records N currents of the OLED display screen under different time intervals, compares the current values with data stored in the system module, judges whether the N OLED display screens are at the same gray scale, and performs data compensation on the N OLED display screens. The display device for adjusting the brightness of the OLED spliced screen adjusts the power supply signal by utilizing the DIC module, so that the display picture is more uniform, the display effect of the spliced screen is improved, and the product quality is improved.
Description
Technical Field
The application relates to the technical field of displays, in particular to a display device and method for adjusting brightness of an OLED spliced screen.
Background
The organic light-Emitting Diode (OLED for short) mainly has the advantages of being capable of Emitting light autonomously, being provided with a flexible screen, being high in light-Emitting efficiency, being fast in response time and the like. However, due to the limitation of process technology, a large-size screen cannot be manufactured at present. In the automobile market, for example, under the scenes of panoramic display in the automobile, traffic control centers and the like, the demand of large-size OLED display screens is large. Therefore, a plurality of small-sized screen panels are needed to be spliced into a large-sized OLED screen, and the large-sized OLED screen is transmitted to each individual display screen for display by using an image segmentation technology.
At present, the application scenes of the liquid crystal spliced screen are more and more extensive, but because the large-size OLED screen formed by splicing different small-size screen panels, the problem of inconsistent brightness caused by the problems of manufacturing process, voltage, current and the like of different screens can inevitably occur, the vision is influenced, in addition, because the different brightness can cause different screen light-emitting service lives, the brightness of each screen can be different when the spliced screen works for a period of time, and the user requirements can not be met.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the application provides a display device and a method for adjusting the brightness of an OLED spliced screen, and the technical problem of uniform brightness display of a liquid crystal spliced screen can be solved.
The embodiment of the invention provides a display device for adjusting the brightness of an OLED spliced screen, which comprises a spliced screen formed by combining N OLED display screens, wherein the N OLED display screens are arranged in an array manner, wherein N is a positive integer greater than or equal to 2;
n OLED display screen all is independent work, N OLED display screen includes: a system module;
the display device for adjusting the brightness of the OLED spliced screen measures N current values of the OLED display screen under different gray scales, records results in the system module, records N currents of the OLED display screen under different time intervals, compares the current values with data stored in the system module, judges whether the N OLED display screens are at the same gray scale, and performs data compensation on the N OLED display screens.
According to the display device for adjusting the brightness of the OLED spliced screen, provided by the embodiment of the invention, the N OLED display screens further comprise: the OLED display screen comprises a display module, a DIC module, a power supply module and a power supply module, wherein the DIC module generates a SWIRE signal and an OLED EN signal to the power supply module in the OLED display screen; the power supply module generates a power supply signal and an AVDD signal to the display module.
According to the display device for adjusting the brightness of the OLED spliced screen, provided by the embodiment of the invention, the N OLED display screens further comprise monitoring modules electrically connected with the system module, and the monitoring modules monitor the voltage values of power signals in the OLED display screens.
According to the display device for adjusting the brightness of the OLED spliced screen, provided by the embodiment of the invention, the monitoring module comprises a thin film transistor, and the thin film transistor is a P-type thin film transistor or an N-type thin film transistor.
According to the display device for adjusting the brightness of the OLED spliced screen, provided by the embodiment of the invention, the grid electrode of the thin film transistor in the monitoring module is connected with a COR signal, the source electrode of the thin film transistor is connected with the power supply module, and the drain electrode of the thin film transistor is connected with the system module.
According to the display device for adjusting the brightness of the OLED spliced screen, provided by the embodiment of the invention, the N small-screen OLED display screens further comprise: the monitoring module works normally and records detection data, the detection data are compared with the data stored in the system module, and the gray scale value of the OLED display screen is determined in sequence.
According to the display device for adjusting the brightness of the OLED spliced screen, which is provided by the embodiment of the invention, the system module judges whether the OLED spliced screen is in the same gray scale according to the gray scale values of the OLED display screen which are sequentially determined, and the system module sends a FLAG signal to the DIC module to inform the DIC module of performing data compensation on the OLED display screen.
The embodiment of the invention also provides a display method for adjusting the brightness of the OLED spliced screen, which comprises the following steps:
s1, lightening N OLED display screens to enable the OLED display screens to work independently, wherein the OLED display screens are combined into a spliced screen, and N is a positive integer greater than or equal to 2;
step S2, outputting a first COR signal by a DIC module in the OLED display screen, enabling a monitoring module in the OLED display screen to work normally, recording detection data, comparing the detection data with data stored in a system module in the OLED display screen, and determining a gray-scale value;
step S3, sequentially outputting a second COR signal, a third COR signal and an Nth COR signal by the DIC module, normally working by the monitoring module, detecting recorded data, sequentially and respectively comparing the recorded data with data stored in the system module, and determining a gray-scale value;
step S4, judging whether the data detected by the system module are consistent when each COR signal works; if the data are consistent, go to step S5; if the data are not consistent, returning to step S2;
and S5, the system module transmits a FLAG signal to the DIC module to inform the DIC module to perform data compensation on the OLED display screen.
According to the display method for adjusting the brightness of the OLED spliced screen, which is provided by the embodiment of the invention, before the step S1, a display device which comprises the OLED display screen and is used for adjusting the brightness of the OLED spliced screen is further provided.
According to the display method for adjusting the brightness of the OLED spliced screen, provided by the embodiment of the invention, the monitoring module in the display device for adjusting the brightness of the OLED spliced screen comprises a thin film transistor, the grid electrode of the thin film transistor is connected with a COR signal, the source electrode of the thin film transistor is connected with the power supply module, and the drain electrode of the thin film transistor is connected with the system module.
The invention has the beneficial effects that: the invention provides a display device and a method for adjusting the brightness of an OLED spliced screen. The current flowing through each OLED display screen power supply at different time intervals under the working state of the spliced screen is recorded, if the current in different time periods is the same, the OLED display screen in the time period can be judged to only display one gray scale, and corresponding adjustment is made by comparing the service life curve of the implanted system so as to achieve the uniform brightness of the whole spliced screen and meet the visual requirements of customers.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display device for adjusting the brightness of an OLED tiled screen according to an embodiment of the present invention.
FIG. 2 is a schematic block diagram of the operation of a single OLED display screen.
Fig. 3 is a schematic diagram of the operation principle of the monitoring module.
Fig. 4 is a timing diagram of the COR signal.
FIG. 5 is a schematic flow chart of a display method for adjusting the brightness of an OLED tiled screen.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in fig. 1, an embodiment of the present invention provides a display device for adjusting luminance of an OLED tiled screen, where the display device for adjusting luminance of an OLED tiled screen includes a tiled screen formed by combining N OLED display screens, and the N OLED display screens are arranged in an array, where N is a positive integer greater than or equal to 2; wherein, N OLED display screen all is independent work, N OLED display screen includes: the device comprises a display module, a DIC module, a system module, a power supply module and a monitoring module; the display device for adjusting the brightness of the OLED spliced screen measures N current values of the OLED display screen under different gray scales, records results in the system module, records N currents of the OLED display screen under different time intervals, compares the current values with data stored in the system module, judges whether the N OLED display screens are at the same gray scale, and performs data compensation on the N OLED display screens.
The display device for adjusting the brightness of the OLED spliced screen provided by the embodiment of the invention monitors the magnitude of the current value flowing through the spliced screen formed by combining N OLED display screens at different time intervals. Whether the N OLED display screens display the same gray scale picture or not in the interval time period is judged, then the adjustment compensation is carried out on the power supply signal through the DIC module according to the detection result, the display pictures of the spliced screen are more uniform, and the display effect of the spliced screen is improved in sequence.
Specifically, as shown in fig. 2, which is a schematic block diagram of the operation of a single OLED display panel, as can be seen from fig. 2, N OLED display panels include: the device comprises a display module 01, a DIC module 02, a system module 05, a power supply module 04 and a monitoring module 03; when the display device for adjusting the brightness of the OLED spliced screen adjusts the display effect of the spliced screen, the DIC module 02 generates a SWIRE signal and an OLED EN signal in a single OLED display screen, the SWIRE signal and the OLED EN signal are input into the power module 04, and the power module 04 generates a power signal and an AVDD signal which can be used for the OLED display screen to work, wherein the power signal penetrates through the whole display area. The monitoring module 03 is further arranged on two sides of the DIC module 02, and the monitoring module 03 monitors the voltage value of the power supply signal in the OLED display screen.
The monitoring module 03 comprises a thin film transistor, and the thin film transistor is a P-type thin film transistor or an N-type thin film transistor. The present embodiment is described with reference to a P-type thin film transistor. Fig. 3 is a schematic diagram illustrating the operation principle of the monitoring module 03. Referring to fig. 3, in the monitoring module 03, a gate of the thin film transistor is connected to a COR signal, a source of the thin film transistor is connected to the power module 04, and a drain of the thin film transistor is connected to the system module 05. When power module 04 does the OLED display screen provides signals and for DIC module 02 provides required signals, the OLED display screen can normally show work, after a period of time DIC module 02 sends a COR signal for monitoring module 03, this moment P type thin film transistor in monitoring module 03 is receiving open during the COR signal, is connected to system module 05's interface can be with signal transmission to system module 05, system module 05 can record the signal voltage value of port this moment, system module 05 can with the inside voltage signal who stores in the register of system 05 is compared, obtains this moment the grey scale of OLED display screen work. After a period of time, the DIC module 02 will send a COR signal to the monitoring module 03 again, and then the system module 05 will record the working gray scale of the OLED display again. N among the OLED display screen system module 05 record in proper order the grey scale degree of OLED display screen work, then compare and judge N the grey scale degree of OLED display screen, if N the grey scale degree of OLED display screen is unanimous, then define this time quantum in N OLED display screen work is under same grey scale degree, at this moment, system module 05 can give DIC module 02 sends a FLAG signal, informs DIC module 02N OLED display screen long-time work is under same state, and informs DIC module 02 give OLED display screen carries out data compensation.
Fig. 4 shows a timing diagram of the COR signal. In fig. 4, M is greater than or equal to 2 and N is greater than or equal to 2, because the thin film transistor in the monitoring module is PMOS in the embodiment of the present invention, all COR signals are turned on in fig. 4.
The embodiment of the invention also provides a display method for adjusting the brightness of the OLED spliced screen, and FIG. 5 is a schematic flow chart of the display method for adjusting the brightness of the OLED spliced screen. The display method for adjusting the brightness of the OLED spliced screen comprises the following steps:
s1, lighting all OLED display screens to enable the OLED spliced screens to normally display;
step S2, outputting a first COR signal by a DIC module in the OLED display screen, enabling a monitoring module in the OLED display screen to work normally, recording detection data, comparing the detection data with data stored in a system module in the OLED display screen, and determining a gray-scale value;
step S3, sequentially outputting a second COR signal, a third COR signal, a … COR signal and an Nth COR signal by the DIC module, normally working by the monitoring module, detecting recorded data, sequentially and respectively comparing the recorded data with data stored in the system module, and determining a gray-scale value;
step S4, judging whether the data detected by the system module are consistent when each COR signal works; if the data are consistent, go to step S5; if the data are not consistent, returning to step S2;
and S5, the system module transmits a FLAG signal to the DIC module to inform the DIC module to perform data compensation on the OLED display screen.
The display device for adjusting the brightness of the OLED spliced screen provided by the embodiment of the invention is used in the display method for adjusting the brightness of the OLED spliced screen, the display device for adjusting the brightness of the OLED spliced screen comprises N OLED display screens, and the OLED display screens comprise: the device comprises a display module, a DIC module, a system module, a power supply module and a monitoring module. The monitoring module in the display device for adjusting the brightness of the OLED spliced screen comprises a thin film transistor, the grid electrode of the thin film transistor is connected with a COR signal, the source electrode of the thin film transistor is connected with the power supply module, and the drain electrode of the thin film transistor is connected with the system module. When the power module is used for providing power signals for the OLED display screen and providing required power signals for the DIC module, the OLED display screen can normally display work, the DIC module sends a COR signal to the monitoring module after a period of time, at the moment, a P-type thin film transistor in the monitoring module is started when the COR signal is received, the P-type thin film transistor is connected to an interface of the system module and transmits the signal to the system module, the system module can record the signal voltage value of a port at the moment, the system module can compare with the voltage signal stored in the register inside the system, and the gray scale of the work of the OLED display screen at the moment is obtained. And after a period of time, the DIC module sends a COR signal to the monitoring module again, and then the system module records the working gray scale of the OLED display screen again. N in the OLED display screen the system module records the grey scale degree that the OLED display screen worked in proper order, then compare and judge N the grey scale degree of OLED display screen, if N the grey scale degree of OLED display screen is unanimous, then define this time quantum in N the OLED display screen work is under same grey scale degree, at this moment, the system module can give the DIC module sends a FLAG signal, informs the DIC module N the OLED display screen is under same state for long-time work, and informs the DIC module give the OLED display screen carries out data compensation.
The invention provides a display device and a method for adjusting the brightness of an OLED spliced screen. The current flowing through each OLED display screen power supply at different time intervals under the working state of the spliced screen is recorded, if the current in different time periods is the same, the OLED display screen in the time period can be judged to only display one gray scale, and corresponding adjustment is made by comparing the service life curve of the implanted system so as to achieve the uniform brightness of the whole spliced screen and meet the visual requirements of customers.
The display device and the method for adjusting the brightness of the OLED tiled screen provided in the embodiments of the present application are described in detail above, and specific examples are applied in the description to explain the principle and the implementation manner of the present application, and the description of the above embodiments is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. The display device for adjusting the brightness of the OLED spliced screen is characterized by comprising a spliced screen formed by combining N OLED display screens, wherein the N OLED display screens are arranged in an array manner, and N is a positive integer greater than or equal to 2;
n OLED display screen all is independent work, N OLED display screen includes: a system module;
the display device for adjusting the brightness of the OLED spliced screen measures N current values of the OLED display screen under different gray scales, records results in the system module, records N currents of the OLED display screen under different time intervals, compares the current values with data stored in the system module, judges whether the N OLED display screens are at the same gray scale, and performs data compensation on the N OLED display screens.
2. The display device for adjusting the brightness of the OLED spliced screen as claimed in claim 1, wherein the N OLED display screens further comprise: the OLED display screen comprises a display module, a DIC module, a power supply module and a power supply module, wherein the DIC module generates a SWIRE signal and an OLED EN signal to the power supply module in the OLED display screen; the power supply module generates a power supply signal and an AVDD signal to the display module.
3. The display device for adjusting the brightness of the OLED spliced screen as claimed in claim 1, wherein the N OLED display screens further comprise a monitoring module electrically connected to the system module, and the monitoring module monitors the voltage value of the power signal in the OLED display screens.
4. The OLED spliced screen brightness adjusting display device as claimed in claim 3, wherein the monitoring module comprises a thin film transistor, and the thin film transistor is a P-type thin film transistor or an N-type thin film transistor.
5. The display device for adjusting the brightness of the OLED spliced screen as claimed in claim 4, wherein the gate of the thin film transistor in the monitoring module is connected to a COR signal, the source of the thin film transistor is connected to the power module, and the drain of the thin film transistor is connected to the system module.
6. The display device for adjusting the brightness of the OLED spliced screen as claimed in claim 1, wherein the N small-screen OLED display screens further comprise: the monitoring module works normally and records detection data, the detection data are compared with the data stored in the system module, and the gray scale value of the OLED display screen is determined in sequence.
7. The display device according to claim 6, wherein the system module determines whether the OLED display screens are at the same gray level according to the sequentially determined gray level values of the OLED display screens, and sends a FLAG signal to the DIC module to notify the DIC module of performing data compensation on the OLED display screens.
8. A display method for adjusting the brightness of an OLED spliced screen is characterized by comprising the following steps:
s1, lightening N OLED display screens to enable the OLED display screens to work independently, wherein the OLED display screens are combined into a spliced screen, and N is a positive integer greater than or equal to 2;
step S2, outputting a first COR signal by a DIC module in the OLED display screen, enabling a monitoring module in the OLED display screen to work normally, recording detection data, comparing the detection data with data stored in a system module in the OLED display screen, and determining a gray-scale value;
step S3, sequentially outputting a second COR signal, a third COR signal and an Nth COR signal by the DIC module, normally working by the monitoring module, detecting recorded data, sequentially and respectively comparing the recorded data with data stored in the system module, and determining a gray-scale value;
step S4, judging whether the data detected by the system module are consistent when each COR signal works; if the data are consistent, go to step S5; if the data are not consistent, returning to step S2;
and S5, the system module transmits a FLAG signal to the DIC module to inform the DIC module to perform data compensation on the OLED display screen.
9. The method for adjusting the brightness of the OLED spliced screen as claimed in claim 8, wherein before the step S1, the method further comprises providing a display device including the OLED display screen for adjusting the brightness of the OLED spliced screen.
10. The display method for adjusting the brightness of the OLED spliced screen as claimed in claim 9, wherein the monitoring module in the display device for adjusting the brightness of the OLED spliced screen comprises a thin film transistor, a gate of the thin film transistor is connected to a COR signal, a source of the thin film transistor is connected to the power module, and a drain of the thin film transistor is connected to the system module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112576808A (en) * | 2020-11-30 | 2021-03-30 | 浙江中控技术股份有限公司 | Display screen system for intelligent electric valve positioner and application method thereof |
| CN113920951A (en) * | 2021-09-15 | 2022-01-11 | 上海祺壹智能科技有限公司 | A method of refreshing the screen with a small current |
| CN114999387A (en) * | 2022-06-28 | 2022-09-02 | 安徽熙泰智能科技有限公司 | Display brightness compensation method based on temperature feedback |
| CN115116390A (en) * | 2022-07-06 | 2022-09-27 | Oppo广东移动通信有限公司 | Brightness compensation method, device, electronic device and storage medium |
| US12027093B2 (en) | 2021-12-30 | 2024-07-02 | Boe Technology Group Co., Ltd. | Spliced screen and method for compensating display of the spliced screen |
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| CN112576808A (en) * | 2020-11-30 | 2021-03-30 | 浙江中控技术股份有限公司 | Display screen system for intelligent electric valve positioner and application method thereof |
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