CN111312142A - Driving method and device for improving image display quality - Google Patents
Driving method and device for improving image display quality Download PDFInfo
- Publication number
- CN111312142A CN111312142A CN202010124092.XA CN202010124092A CN111312142A CN 111312142 A CN111312142 A CN 111312142A CN 202010124092 A CN202010124092 A CN 202010124092A CN 111312142 A CN111312142 A CN 111312142A
- Authority
- CN
- China
- Prior art keywords
- group
- gip
- data
- gip circuits
- circuits
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a driving method and a device for improving image display quality, wherein the method is applied to a display panel, 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 one by one according to the sequence and then connected with pixels of the display panel, the first group of GIP circuits and the second group of GIP circuits are divided into a plurality of groups with the same number, and the driving method comprises the following steps: transmitting the luminescence data in a pulse type through a small group of the first group of GIP circuits; after the emission data of the subgroup is sent, sending black insertion data through the subgroup of the second group of GIP circuits connected with the subgroup; and after the black insertion data is sent, sending luminous data by the next group of the first group of GIP circuits. The invention can reduce the blurring of the dynamic picture (reduce the MPRT value) and improve the image quality.
Description
Technical Field
The present invention relates to the field of display driving technologies, and in particular, to a driving method and apparatus for improving image display quality.
Background
With the development of technology, the demand for displays is getting higher and higher nowadays, people pay more attention to the display quality, however, many liquid crystal displays have a blurring effect when displaying dynamic pictures, which can cause uncomfortable experience for viewers. 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 desirable to provide a driving method and apparatus for improving image display quality, which solves the problem of image blur in a dynamic image of a conventional panel.
In order to achieve the above object, the present invention provides a driving method for improving image display 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 sequence one by one, and then connected to a pixel of the display panel, the first group of GIP circuits and the second group of GIP circuits are divided into a plurality of groups with the same number, and the driving method includes the following steps:
transmitting the luminescence data in a pulse type through a small group of the first group of GIP circuits;
after the emission data of the subgroup is sent, sending black insertion data through the subgroup of the second group of GIP circuits connected with the subgroup;
and after the black insertion data is sent, sending luminous data by the next group of the first 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 black insertion data is held for the same time as the light emission data.
Furthermore, the display panel comprises GIP transmission lines, the GIP transmission lines are connected with one subgroup of the first group of GIP circuits and then connected with the subgroup of the second group of GIP circuits connected with the subgroup, the next subgroup of the first group of GIP circuits is connected according to the connection mode until all subgroups are connected, and the GIP transmission lines are used for controlling whether GIP circuit data are sent to pixels of the display panel.
Further, the method comprises the following steps:
during the picture display time of one frame,
all subgroups of the first group of GIP circuits complete one emission data transmission and all subgroups of the second group of GIP circuits complete one black insertion data transmission.
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 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 of the luminous data can be reduced, and then the black insertion data is sent in the remaining time of one frame of picture, so that the brightness can be ensured to be unchanged, the luminous data sending time is reduced, the dynamic picture blurring can be reduced (the MPRT value is 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 for pulse and Hold Type 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 schematic diagram of a sequence of GIP circuit turn-on in accordance with one 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 driving method for improving image display 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 one by one according to a 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 pixels of the display panel. 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 mode for transmitting the light-emitting data and the black insertion data in the embodiment is the same as that of the original single light-emitting data, and only the timing and the value of the data transmission are different. And then, the first group of GIP circuits and the second group of GIP circuits are divided in the same way, namely, the two groups of GIP circuits are divided in the same way. Each group of GIP circuits is divided into a number of equal number of subgroups. The 1000-stage GIP circuits can be divided into 4 subgroups as shown in the figure, and each subgroup is a 250-stage GIP circuit.
The driving method comprises the following steps: transmitting the luminescence data in a pulse type through a small group of the first group of GIP circuits; after the emission data of the subgroup is sent, sending black insertion data through the subgroup of the second group of GIP circuits connected with the subgroup; the black insertion data lasts for a period of time, and after the black insertion data is sent, the next group of the first group of GIP circuits sends luminous data. 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 in the same column 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. Since the invention transmits the black insertion data and transmits the light-emitting data in stages, in order to avoid the panel from becoming dark, the brightness of the light-emitting data should be increased so that the display brightness of the panel is the same as before.
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 pulse type (Impulse type) of the CRT driving mode 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.
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. 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. After the transmission of the light emission data is completed, the GIP-B of 1 to 250 levels is turned on for the black insertion data. After the black insertion datｃA of the GIP-B of the levels 1 to 250 are transmitted, the GIP-A of the levels 250 to 500 of the second subgroup starts to transmit the light emission datｃA. After the transmission of the emission data is completed, the GIP-B of 250 to 500 levels is turned on for the black insertion data. After the black insertion datｃA of the 250 to 500-level GIP-B is transmitted, the third group of 500 to 750-level GIP-A starts to transmit the light emitting datｃA. After the transmission of the light emitting data is completed, the GIP-B of 500 to 750 levels is turned on for the black insertion data. After the black insertion datｃA of the GIP-B of the 500 to 750 levels are transmitted, the GIP-A of the 750 to 1000 levels of the fourth subgroup starts to transmit the light emission datｃA. After the transmission of the light emitting data is completed, the 750 to 1000-level GIP-B is turned on for the black insertion data. The timing of GIP on is shown in fig. 4, the picture display result is shown in fig. 5, the display in one picture frame is divided into 8 stages, each stage is realized by opening GIP- ｃA or GIP-B by regions, and by the human eye integration principle, one picture performs the writing of black insertion datｃA in the 8 stages, and compared with the continuous light emission in one frame, the human eye perception is the same, and the MPRT value can be reduced by the similar Impulse driving mode. 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 a preferred embodiment, the black insertion data is held for the same time as the light emission data is held for display driving.
Furthermore, the display panel comprises GIP transmission lines, the GIP transmission lines are connected with one subgroup of the first group of GIP circuits and then connected with the subgroup of the second group of GIP circuits connected with the subgroup, the next subgroup of the first group of GIP circuits is connected according to the connection mode until all subgroups are connected, and the GIP transmission lines are used for controlling whether GIP circuit data are sent to pixels of the display panel. Through the GIP transmission line, the control of the sequential opening of the GIP circuit can be completed.
Further, the method comprises the following steps: in the frame display time of one frame, all subgroups of the first group of GIP circuits complete one emission data transmission and all subgroups of the second group of GIP circuits complete one black insertion data transmission, so that one frame of frame display can be completed.
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 driving method for improving image display 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 one by one according to the sequence and then connected with pixels of the display panel, the first group of GIP circuits and the second group of GIP circuits are divided into a plurality of groups with the same number, and the driving method comprises the following steps:
transmitting the luminescence data in a pulse type through a small group of the first group of GIP circuits;
after the emission data of the subgroup is sent, sending black insertion data through the subgroup of the second group of GIP circuits connected with the subgroup;
and after the black insertion data is sent, sending luminous data by the next group of the first group of GIP circuits.
2. The driving method according to claim 1, wherein the driving method comprises: 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 driving method as claimed in claim 1, wherein the black insertion data is maintained for the same time as the light emitting data.
4. The driving method as claimed in claim 1, wherein the display panel comprises GIP transmission lines, the GIP transmission lines are connected to one subgroup of the first group of GIP circuits and then to the subgroup of the second group of GIP circuits connected to the subgroup, and the next subgroup of the first group of GIP circuits is connected according to the connection mode until all subgroups are connected, the GIP transmission lines are used for controlling whether GIP circuit data are transmitted to the display panel pixels.
5. The driving method according to claim 1, comprising the steps of:
during the picture display time of one frame,
all subgroups of the first group of GIP circuits complete one emission data transmission and all subgroups of the second group of GIP circuits complete one black insertion data transmission.
6. A display device for improving image display quality comprises a display panel and a driving unit which are connected with each other, and is characterized in that: the driving unit is configured to perform the driving method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124092.XA CN111312142B (en) | 2020-02-27 | 2020-02-27 | Driving method and device for improving image display quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124092.XA CN111312142B (en) | 2020-02-27 | 2020-02-27 | Driving method and device for improving image display quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111312142A true CN111312142A (en) | 2020-06-19 |
| CN111312142B CN111312142B (en) | 2023-07-25 |
Family
ID=71151561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010124092.XA Active CN111312142B (en) | 2020-02-27 | 2020-02-27 | Driving method and device for improving image display quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111312142B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828698A (en) * | 2005-03-03 | 2006-09-06 | 奇美电子股份有限公司 | Flat display and driving method thereof |
| US20070001960A1 (en) * | 2005-06-30 | 2007-01-04 | Kim Seong G | Method and apparatus for processing data of liquid crystal display |
| CN1941060A (en) * | 2005-09-28 | 2007-04-04 | 东芝松下显示技术有限公司 | Liquid crystal display device |
| CN101276554A (en) * | 2007-03-30 | 2008-10-01 | Nec液晶技术株式会社 | Backlight unit and liquid-crystal display device using the same |
| CN101504827A (en) * | 2009-03-04 | 2009-08-12 | 深圳华映显示科技有限公司 | Color sequential display apparatus driven by duplicate multiple scanning and method therefor |
| CN102890918A (en) * | 2012-10-30 | 2013-01-23 | 南京中电熊猫液晶显示科技有限公司 | Dynamic backlight driving method |
-
2020
- 2020-02-27 CN CN202010124092.XA patent/CN111312142B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828698A (en) * | 2005-03-03 | 2006-09-06 | 奇美电子股份有限公司 | Flat display and driving method thereof |
| US20070001960A1 (en) * | 2005-06-30 | 2007-01-04 | Kim Seong G | Method and apparatus for processing data of liquid crystal display |
| CN1892787A (en) * | 2005-06-30 | 2007-01-10 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method for driving same |
| CN1941060A (en) * | 2005-09-28 | 2007-04-04 | 东芝松下显示技术有限公司 | Liquid crystal display device |
| CN101276554A (en) * | 2007-03-30 | 2008-10-01 | Nec液晶技术株式会社 | Backlight unit and liquid-crystal display device using the same |
| JP2008249998A (en) * | 2007-03-30 | 2008-10-16 | Nec Lcd Technologies Ltd | Backlight device and liquid crystal display device |
| CN101504827A (en) * | 2009-03-04 | 2009-08-12 | 深圳华映显示科技有限公司 | Color sequential display apparatus driven by duplicate multiple scanning and method therefor |
| CN102890918A (en) * | 2012-10-30 | 2013-01-23 | 南京中电熊猫液晶显示科技有限公司 | Dynamic backlight driving method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111312142B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7696975B2 (en) | Liquid crystal display having display blocks that display normal and compensation images | |
| CN112992069B (en) | Display control device, display device, recording medium, and control method | |
| CN100573634C (en) | Display device and driving method thereof | |
| CN112530351B (en) | Display panel driving method, display panel and display device | |
| JP6787675B2 (en) | Display device and driving method of display device | |
| JP6764829B2 (en) | Display panel control device, display device and display panel drive method | |
| EP2178073A1 (en) | Organic light emitting display | |
| CN111028781B (en) | Driving method and driving device of display panel and display equipment | |
| US9378672B2 (en) | Organic light emitting display device and driving method thereof | |
| CN112562589B (en) | Pixel driving circuit, display panel and driving method of pixel driving circuit | |
| US20190035337A1 (en) | Display panel, control device for display panel, display device, and method for driving display panel | |
| WO2013102388A1 (en) | Image display device and image display method | |
| CN110800038B (en) | Display driving circuit, display device and display method based on time division data output | |
| JP2000293142A (en) | Liquid crystal display device | |
| CN113628588A (en) | Display driving module, display device and display method | |
| CN111916018A (en) | Display panel and driving method thereof | |
| CN111292674A (en) | Display driving method and device with high image quality | |
| US9197847B2 (en) | Image display device, image display method, and program | |
| JP2002149132A (en) | Liquid crystal display device | |
| CN111312142B (en) | Driving method and device for improving image display quality | |
| JP2005274973A (en) | Display device and display device control method | |
| CN115101008A (en) | Display panel, driving method thereof and display device | |
| CN113160749B (en) | Display control device, display device, recording medium, and control method | |
| CN115588397A (en) | Display panel, driving method thereof and display device | |
| JP4995370B2 (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |