CN111292674A - Display driving method and device with high image quality - Google Patents
Display driving method and device with high image quality Download PDFInfo
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- CN111292674A CN111292674A CN202010118260.4A CN202010118260A CN111292674A CN 111292674 A CN111292674 A CN 111292674A CN 202010118260 A CN202010118260 A CN 202010118260A CN 111292674 A CN111292674 A CN 111292674A
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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
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The invention discloses a display driving method and a device with high image quality, wherein a display panel comprises a first group of GIP circuits and a second group of GIP circuits, each GIP circuit in the first group of GIP circuits and each GIP circuit in the second group of GIP circuits are connected in pairs according to the sequence, and then are connected with pixels of the display panel, and the display driving method comprises the following steps: transmitting the luminescence data by adopting a pulse mode through a first group of GIP circuits; and after the transmission of the luminous data is finished, transmitting the black insertion data through the second group of GIP circuits. The luminous data are sent in a pulse mode, so that the duration time of the luminous data can be shortened, then black insertion data are sent in the remaining time of a frame of picture, the unchanged brightness can be ensured, the luminous data sending time is shortened, the blurring of a dynamic picture can be reduced, and the image quality is improved.
Description
Technical Field
The present invention relates to the field of display driving technologies, and in particular, to a display driving method and device with high image quality.
Background
An important factor affecting the image quality of the panel is the image blur generated in the dynamic picture, which can cause discomfort to the viewer. As shown in fig. 1, the comparison between a group of normal pictures and a group of motion blurred pictures results in three key reasons for blurred images, which are: (1) the image update frequency, (2) the gray scale-to-gray scale response time, and (3) the panel driving method. The current panel also uses these three methods to improve the motion picture and measures the Motion Picture Response Time (MPRT) value as a comparison basis, the lower the value the better. At present, improving motion blur images is a research and development project of panel factories.
Disclosure of Invention
Therefore, it is necessary to provide a display driving method and apparatus with high image quality to solve the problem of image blur in a moving picture of the conventional panel.
In order to achieve the above object, the present invention provides a display driving method with high image quality, which is applied to a display panel, the display panel includes a first group of GIP circuits and a second group of GIP circuits, each GIP circuit in the first group of GIP circuits and each GIP circuit in the second group of GIP circuits are connected in pairs according to a sequence, and then connected to a pixel of the display panel, the display driving method includes the following steps:
transmitting the luminescence data by adopting a pulse mode through a first group of GIP circuits;
and after the transmission of the luminous data is finished, transmitting the black insertion data through the second group of GIP circuits.
Further, the integration of the brightness and the time in the pulse mode is equal to the integration of the brightness and the time in the continuous mode, so that the display brightness of the display panel is kept unchanged.
Further, the display driving method includes the steps of:
simultaneously transmitting light emitting data through all GIP circuits of the first group of GIP circuits;
and after the transmission of the luminous data is finished, simultaneously transmitting the black insertion data through all the GIP circuits of the second group of GIP circuits.
Further, the method comprises the following steps:
dividing the first and second groups of GIP circuits into a plurality of equal number of subgroups;
sequentially sending luminous data through different subgroups of the first group of GIP circuits;
after the transmission of the emission data is completed, black insertion data is transmitted through the subgroups of the second group of GIP circuits connected to the emission data subgroups.
Further, the method comprises the following steps:
during the picture display time of one frame,
transmitting the luminescence data by adopting a pulse mode through a first group of GIP circuits;
and after the transmission of the luminous data is finished, transmitting the black insertion data through the second group of GIP circuits.
The invention provides a display device with high image quality, which comprises a display panel and a driving unit which are connected with each other, wherein the driving unit is used for executing the display driving method of any embodiment of the invention.
Different from the prior art, the technical scheme adopts a pulse mode to send the luminous data, so that the duration time of the luminous data can be reduced, and then the black insertion data is sent in the remaining time of a frame of picture, so that the brightness can be ensured to be unchanged, the luminous data sending time is reduced, the blurring of a dynamic picture can be reduced, and the image quality is improved.
Drawings
FIG. 1 is a diagram illustrating a comparison between a normal frame and a motion-blurred frame in the prior art;
FIG. 2 is a diagram illustrating brightness and time during Impulse and HoldType driving according to an embodiment;
FIG. 3 is a layout diagram of two sets of GIP circuits according to one embodiment;
FIG. 4 is a diagram illustrating the transmission of light emission and black insertion data by a sub-group within a frame according to an embodiment;
fig. 5 is a diagram illustrating simultaneous transmission of light emission and black insertion data within one frame according to an embodiment of the present invention.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 2 to 5, the present embodiment provides a display driving method with high image quality, which is applied to a display panel including a first group of GIP circuits (GIP-a1 …) and a second group of GIP circuits (GIP-a2 …), wherein each GIP circuit of the first group of GIP circuits and each GIP circuit of the second group of GIP circuits are connected two by two in sequence, for example, the GIP-a1 is connected to the GIP-B1, and the GIP-a2 is connected to the GIP-B2, and then connected to the display panel pixels. For the existing display panel, only one set of GIP circuits is used for turning on the gates one by one, so that the light-emitting data is written into the pixels one by one, and the light-emitting data is maintained until the same row of gates is turned on again to update the light-emitting data. The invention only needs to add a group of GIP circuits with the same structure as the original group, thereby changing the original connection of one pixel with one GIP circuit into the connection of two GIP circuits. The hardware connection method for transmitting the light data and the black insertion data in this embodiment is the same as the original method, and only the timing and the value of the data transmission are different.
The display driving method includes the steps of: transmitting the luminescence data by adopting a pulse mode through a first group of GIP circuits; and after the transmission of the luminous data is finished, transmitting the black insertion data through the second group of GIP circuits. That is, the mutually connected GIP circuits in the first and second groups of GIPs do not transmit data (light emission data or black insertion data) at the same time, but the light emission data is maintained until the black insertion data (0 gray scale data) is written, and then the black insertion data is maintained until the light emission data is written again, and the above-described cycle continues. In practice, when driving, the gates can be turned on one by one, and the first group of GIP circuits writes one by one light emitting data. Then the gates are opened one by one, and the second group of GIP circuits write in one by one luminous data. As shown in fig. 2, the conventional driving method is that the LCD and the OLED are driven by a continuous (Hold) driving method, but the CRT is driven by a pulse (Impulse) driving method. The luminance and time integral of the two driving modes are the same; the CRT (MPRT value) is about 2-3 ms, the LCD (MPRT value) is about 15-20 ms, the OLED (MPRT value) is about 5-8 ms, and the CRT driving mode pulse (Impulse) is an important factor for making the MPRT value smaller. In this embodiment, the motion blur can be improved by changing the Hold type driving to Impulse type driving.
When the display panel is actually driven to display, a partial cycle driving mode or a full simultaneous driving mode can be adopted.
When a partial circulation mode is adopted, the method comprises the following steps: dividing the first and second groups of GIP circuits into a plurality of equal number of subgroups; sequentially sending luminous data through different subgroups of the first group of GIP circuits; after the transmission of the emission data is completed, black insertion data is transmitted through the subgroups of the second group of GIP circuits connected to the emission data subgroups. And each time one subgroup of the first group of GIP circuits transmits the luminous data, the second group of GIP circuits corresponding to other subgroups can transmit the black insertion data, and after the display area of the display panel corresponding to the subgroup is displayed, the display area is switched to another subgroup to transmit the luminous data.
The embodiment is shown in fig. 3, for example, an AA AreｃA (Active AreｃA) having 1000 lines of pixels provides 1000 for the light emitting datｃA GIP- ｃA and 1000 for the black insertion datｃA GIP-B, and controls only the GIP- ｃA to be turned on or only the GIP-B to perform the black insertion operation. As shown in FIG. 4, GIP-A and GIP-B were divided into 4 subgroups. For example, the light emitting datｃA is first turned on from the 1 to 250 levels GIP- ｃA of the first subgroup. When the GIP-A of 250 to 500 levels is turned on, the GIP-B of 1 to 250 levels is turned on for black insertion datｃA; when the GIP-A of 500 to 750 levels is turned on, the GIP-B of 250 to 500 levels is also turned on for black insertion datｃA; when the GIP-A of 750 to 1000 levels is turned on, the GIP-B of 500 to 750 levels is turned on for black insertion datｃA. As shown in fig. 4, the display result of ｃA picture in one frame is divided into 4 stages, each stage is realized by opening the GIP- ｃA or GIP-B by the areｃA, and according to the human eye integration principle, one picture is written with black insertion datｃA in the 4 stages, so that the perception of human eyes is the same compared with the case that the picture continuously emits light in one frame, and the MPRT value can be reduced by ｃA driving method similar to the pulse driving. Thereby effectively improving the blurring effect of the dynamic image. It should be noted that, this embodiment is only for illustration, the number of Pixel rows of the display panel may be any number, for example, there may be 1500 rows of pixels, 2000 rows of pixels, 2500 rows of pixels, and so on, and the divided area may have 5, 6, 7, and so on.
In all simultaneously driven embodiments, the invention comprises the steps of: simultaneously transmitting light emitting data through all GIP circuits of the first group of GIP circuits; and after the transmission of the luminous data is finished, simultaneously transmitting the black insertion data through all the GIP circuits of the second group of GIP circuits. As shown in fig. 5, the display effect is that Data writing and light emitting are completed within the first quarter frame time, a 0-gray scale picture is formed within the last three quarters frame, and the light emitting time in the light emitting stage is short, so that the human eye can perceive the picture as the same as continuous light emitting in one frame only by the brighter brightness according to the human eye integration principle, and the MPRT value is reduced and the dynamic blurring effect is improved. It should be noted that the present invention is given as an example, and one-half, one-third, one-fifth, …, etc. may be given.
According to different driving modes of the display panel, different sending timings of the light-emitting data and the black insertion data can be selected. In some embodiments, the data transmission time is within a picture display time of one frame.
The present invention provides a display device with high image quality, comprising a display panel and a driving unit connected to each other, wherein the driving unit is configured to perform the steps of any of the embodiments of the present invention. The display device of the invention can reduce the sending time of the luminous data, reduce the blurring of the dynamic picture and improve the image quality.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (6)
1. A display driving method with high image quality is applied to a display panel, and is characterized in that: the display panel comprises a first group of GIP circuits and a second group of GIP circuits, each GIP circuit in the first group of GIP circuits and each GIP circuit in the second group of GIP circuits are connected in pairs according to the sequence, and then are connected with pixels of the display panel, and the display driving method comprises the following steps:
transmitting the luminescence data by adopting a pulse mode through a first group of GIP circuits;
and after the transmission of the luminous data is finished, transmitting the black insertion data through the second group of GIP circuits.
2. The display driving method with high image quality as claimed in claim 1, wherein: the integration of the impulse brightness and the time is equal to the integration of the continuous brightness and the time, so that the display brightness of the display panel is kept unchanged.
3. The display driving method of claim 1, wherein the display driving method comprises the steps of:
simultaneously transmitting light emitting data through all GIP circuits of the first group of GIP circuits;
and after the transmission of the luminous data is finished, simultaneously transmitting the black insertion data through all the GIP circuits of the second group of GIP circuits.
4. The method for driving a display with high image quality as claimed in claim 1, comprising the steps of:
dividing the first and second groups of GIP circuits into a plurality of equal number of subgroups;
sequentially sending luminous data through different subgroups of the first group of GIP circuits;
after the transmission of the emission data is completed, black insertion data is transmitted through the subgroups of the second group of GIP circuits connected to the emission data subgroups.
5. The method for driving a display with high image quality as claimed in claim 1, comprising the steps of:
during the picture display time of one frame,
transmitting the luminescence data by adopting a pulse mode through a first group of GIP circuits;
and after the transmission of the luminous data is finished, transmitting the black insertion data through the second group of GIP circuits.
6. Display device of high image quality, including interconnect's display panel and drive unit, its characterized in that: the driving unit is configured to perform the display driving method according to any one of claims 1 to 5.
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| CN202010118260.4A CN111292674A (en) | 2020-02-26 | 2020-02-26 | Display driving method and device with high image quality |
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| CN202010118260.4A CN111292674A (en) | 2020-02-26 | 2020-02-26 | Display driving method and device with high image quality |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023000203A1 (en) * | 2021-07-21 | 2023-01-26 | 京东方科技集团股份有限公司 | Driving method for display apparatus, display drive circuit, and display apparatus |
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Application publication date: 20200616 |