CN106648239B - Display device and display panel for compensating display interruption - Google Patents
Display device and display panel for compensating display interruption Download PDFInfo
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- CN106648239B CN106648239B CN201611207454.1A CN201611207454A CN106648239B CN 106648239 B CN106648239 B CN 106648239B CN 201611207454 A CN201611207454 A CN 201611207454A CN 106648239 B CN106648239 B CN 106648239B
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- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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Abstract
The invention discloses a display device for compensating display interruption and a display panel thereof. The display panel comprises a driving unit, a control unit and a control unit, wherein when the driving unit works, the control unit acquires compensation time from a flash memory unit, and controls the compensation unit to acquire the compensation time and the compensation intensity when the compensation time is up; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs the compensated driving signal. The invention can avoid uneven display and improve the quality of pictures.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and a display panel thereof for compensating for display interruption.
Background
At present, the display panel and the touch panel of the display device mainly adopt an On-cell structure. However, In order to achieve a thin display device, it is becoming more and more common to integrate a display panel and a touch panel of a conventional display device into an In-cell structure.
In a display panel having a touch sensor, a display driver for displaying image data input by a main processor and a touch panel controller for detecting a touched position and outputting the detected position to the main processor are connected. When a touch is detected, display driving is performed while a signal is applied to the touch panel, and the signal applied to the touch panel is mixed with a display signal, which degrades the image quality of the display panel.
In order to improve image quality, the display device of the related art sets a display interruption: in one frame of screen, touch detection needs to be performed a plurality of times with display interruption. However, since the thin film transistor of the display device may leak electricity, when the display image is switched to the display interruption, or when the display interruption is switched to the display screen, display unevenness may easily occur in other display areas.
Disclosure of Invention
The present invention provides a display device and a display panel thereof, which can improve the quality of the picture.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a display panel who compensates to show and break, it includes drive unit, drive unit is used for driving display panel, drive unit and external flash memory unit are connected, flash memory unit is used for the storage compensation time and compensates intensity, drive unit includes the control unit and compensates the unit, the control unit respectively with compensate unit and flash memory unit connection, the compensation unit is connected with flash memory unit, wherein:
the control unit acquires compensation time from the flash memory unit when the driving unit works, and controls the compensation unit to acquire the compensation time and the compensation intensity when the compensation time is up; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs the compensated driving signal.
When the driving unit works, the compensation unit acquires compensation time and compensation intensity from the flash memory unit, obtains compensation data according to the compensation intensity, and stores the compensation data, the compensation time and the compensation intensity in the storage unit; at the compensation time, the compensation unit acquires the compensation data from the storage unit and transmits the compensation data to the control unit.
The control unit is connected with the compensation unit through the interrupt interface, and when the interrupt interface outputs high level, the compensation unit acquires compensation data; when the interrupt interface outputs low level, the compensation unit stops working, and the driving signal output by the control unit is original data.
The control unit acquires original data through the interface of the mobile industry processor, and adds the compensation data and the original data to obtain a compensated driving signal.
The control unit and the compensation unit are connected with the flash memory unit through a serial external interface.
In order to solve the technical problem, the invention adopts another technical scheme that: the utility model provides a compensation shows display device who breaks, it includes display panel, display panel includes drive unit, drive unit is used for driving display panel, drive unit is connected with external flash memory unit, flash memory unit is used for the storage compensation time and compensates intensity, drive unit includes the control unit and compensates the unit, the control unit respectively with compensate unit and flash memory unit connection, compensate the unit and be connected with flash memory unit, wherein:
the control unit acquires compensation time from the flash memory unit when the driving unit works, and controls the compensation unit to acquire the compensation time and the compensation intensity when the compensation time is up; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs the compensated driving signal.
When the driving unit works, the compensation unit acquires compensation time and compensation intensity from the flash memory unit, obtains compensation data according to the compensation intensity, and stores the compensation data, the compensation time and the compensation intensity in the storage unit; at the compensation time, the compensation unit acquires the compensation data from the storage unit and transmits the compensation data to the control unit.
The control unit is connected with the compensation unit through the interrupt interface, and when the interrupt interface outputs high level, the compensation unit acquires compensation data; when the interrupt interface outputs low level, the compensation unit stops working, and the driving signal output by the control unit is original data.
The control unit acquires original data through the interface of the mobile industry processor, and adds the compensation data and the original data to obtain a compensated driving signal.
The control unit and the compensation unit are connected with the flash memory unit through a serial external interface.
The invention has the beneficial effects that: different from the prior art, the invention obtains the compensation time from the flash memory unit by the control unit when the driving unit works, and controls the compensation unit to obtain the compensation time and the compensation intensity when the compensation time is up; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs a compensated driving signal; the display panel is driven by the compensated driving signal, so that uneven display can be avoided, and the quality of a picture is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be adopted in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts. Wherein:
FIG. 1 is a schematic diagram of a display panel for compensating for display interruption according to an embodiment of the present invention;
FIG. 2 is a timing diagram of the display panel of FIG. 1;
fig. 3 is a schematic structural diagram of a display device for compensating for display interruption according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a display panel for compensating for display interruption according to an embodiment of the invention; fig. 2 is a timing diagram of the display panel of fig. 1. The display panel and the touch panel disclosed In the present embodiment adopt an integrated In-cell structure. As shown in fig. 1, the display panel 10 includes a driving unit 11, and the driving unit 11 generates a driving signal for driving the display panel 10 to display a picture.
The driving unit 11 is connected to an external flash memory unit 12, and the flash memory unit 12 is used for storing the compensation time and the compensation intensity. The Flash memory unit 12 may be Flash, and the compensation time includes a first compensation time T1 before the display interruption and a second compensation time T2 after the display interruption, as shown in fig. 2. In other embodiments, the flash memory unit 12 is also used for storing the setting parameters of the register and other compensation parameters.
The driving unit 11 includes a control unit 111 and a compensation unit 112, the control unit 111 is connected to the compensation unit 112 and the flash memory unit 12, and the compensation unit 112 is connected to the flash memory unit 12.
When the driving unit 11 is operated, i.e., the display panel 10 is powered on, the control unit 111 acquires the compensation time from the flash memory unit 12, and controls the compensation unit 112 to acquire the compensation time and the compensation intensity at the compensation time; the compensation unit 112 obtains compensation data according to the compensation intensity, and the control unit 111 compensates the received original data according to the compensation data and outputs a compensated driving signal.
The driving unit 11 further includes a storage unit 113 connected to the compensation unit 112, and when the driving unit 11 is in operation, the compensation unit 112 obtains the compensation time and the compensation intensity from the flash memory unit 12, calculates compensation data according to the compensation intensity, and stores the compensation data, the compensation time, and the compensation intensity in the storage unit 113; at the time of compensation, the compensation unit 112 acquires compensation data from the storage unit 113 and transmits the compensation data to the control unit 111, and the control unit 111 compensates the original data according to the compensation data.
The control unit 111 may be connected to the compensation unit 112 through the interrupt interface COMP _ EN, and when the interrupt interface COMP _ EN outputs a high level, the compensation unit 112 obtains compensation data; when the interrupt interface COMP _ EN outputs a low level, the compensation unit 112 stops working, and the driving signal output by the control unit 111 is the original data.
The control unit 111 may obtain original data through a Mobile Industry Processor Interface (MIPI), and add the compensated data to the original data to obtain a compensated driving signal.
Specifically, the driving unit 11 further includes a MIPI I/F unit 114, a MIPI receiving unit 115, a driving unit 116, and a GOA control unit 117, the driving unit 11 is connected to the MIPI I/F unit 114, the MIPI I/F unit 114 is connected to the MIPI receiving unit 115, and the driving unit 11 acquires the raw data RI, GI, and BI through the MIPI I/F unit 114 and the MIPI receiving unit 115. The driving unit 11 is connected to the driving unit 116, and drives the display panel 10 through the driving unit 116, and the driving unit 11 supplies RO, GO, and BO to the driving unit 116. The driving unit 11 is connected to the GOA controlling unit 117, and drives the GOA circuits (not shown) of the display panel 10 through the GOA controlling unit 117.
The operation principle of the driving unit 11 of this embodiment is explained in detail below.
Wherein, the control unit 111 presets the time for displaying the interrupt, i.e. when Vs and Hs are synchronized in fig. 2; the control unit 111 sets the number of lines displaying the supplement before the interruption as a line according to the first compensation time T1 of the compensation time, and sets the number of lines displaying the supplement after the interruption as b lines according to the second compensation time T2. The control unit 111 further acquires the compensation data at the first compensation time T1 as c and the compensation data at the second compensation time T2 as d from the compensation unit 112.
After the driving unit 11 scans N lines, the display is interrupted for touch detection, and HALT _ EN shown in fig. 2 is at a low level.
When the control unit 111 judges that a is not 0, namely compensation is needed before interruption is displayed, and when the control unit 111 calculates an N-a line, the control unit 111 pulls up an interruption interface COMP _ EN; until N lines are counted, the control unit 111 pulls the interrupt interface COMP _ EN low. When the interrupt interface COMP _ EN is at a high level, the control section 111 acquires compensation data Rc, Gc, and Bc from the compensation section 112, adds the compensation data Rc, Gc, and Bc to the original data RI, GI, and BI to obtain compensated signals RO, GO, and BO, and sends the signals RO, GO, and BO to the drive section 116 to drive them.
When the control unit 111 determines that a is 0, that is, compensation is not required before display interruption, the control unit 111 pulls the interruption interface COMP _ EN low. The compensation unit 112 does not operate, and the signals RO, GO, and BO output by the control unit 111 are the same as the original data RI, GI, and BI.
When the control unit 111 determines that b is not 0, that is, compensation is needed after display interruption, and when the control unit 111 calculates N lines, the control unit 111 pulls up the interrupt interface COMP _ EN, until N + b lines are calculated, the control unit 111 pulls down the interrupt interface COMP _ EN. When the interrupt interface COMP _ EN is at a high level, the control section 111 acquires compensation data Rc, Gc, and Bc from the compensation section 112, adds the compensation data Rc, Gc, and Bc to the original data RI, GI, and BI to obtain compensated signals RO, GO, and BO, and sends the signals RO, GO, and BO to the drive section 116 to drive them.
When the control unit 111 determines that b is 0, that is, compensation is not needed after the display is interrupted, the control unit 111 pulls the interrupt interface COMP _ EN low. The compensation unit 112 does not operate, and the signals RO, GO, and BO output by the control unit 111 are the same as the original data RI, GI, and BI.
When the control unit 111 calculates the integer multiple of N, the above operations are repeated until one frame of the picture is finished.
The control unit 111 and the compensation unit 112 may be connected to the flash memory unit through a Serial Peripheral Interface (SPI).
In the present embodiment, the display panel 10 is driven by the compensated driving signal, so that the display unevenness can be avoided and the picture quality can be improved.
As shown In fig. 3, the display device includes a display panel 31 and a touch panel 32, and the display panel 31 and the touch panel 32 adopt an integrated In-cell structure. The display panel 31 is the display panel 10 described in the above embodiments, and is not described herein again.
In summary, in the present invention, when the driving unit operates, the control unit obtains the compensation time from the flash memory unit, and controls the compensation unit to obtain the compensation time and the compensation intensity during the compensation time; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs a compensated driving signal; the display panel is driven by the compensated driving signal, so that uneven display can be avoided, and the quality of a picture is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a display panel that compensation display was interrupted, its characterized in that, display panel includes drive unit, drive unit is used for the drive display panel, drive unit is connected with external flash memory unit, flash memory unit is used for the storage compensation time and compensates intensity, drive unit includes the control unit and compensates the unit, the control unit respectively with compensate the unit with flash memory unit connects, wherein:
the control unit acquires the compensation time from the flash memory unit when the driving unit is operated, and controls the compensation unit to acquire the compensation time and the compensation intensity when the compensation time is reached; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs a compensated driving signal;
the compensation time includes a first compensation time before the display interruption and a second compensation time after the display interruption.
2. The display panel according to claim 1, wherein the driving unit further comprises a storage unit connected to the compensation unit, and when the driving unit is operated, the compensation unit obtains the compensation time and the compensation intensity from the flash memory unit, derives compensation data according to the compensation intensity, and stores the compensation data, the compensation time, and the compensation intensity in the storage unit; and when the compensation time is up, the compensation unit acquires the compensation data from the storage unit and sends the compensation data to the control unit.
3. The display panel according to claim 2, wherein the control unit is connected to the compensation unit through an interrupt interface, and when the interrupt interface outputs a high level, the compensation unit obtains the compensation data; when the interrupt interface outputs a low level, the compensation unit stops working, and the driving signal output by the control unit is the original data.
4. The display panel of claim 3, wherein the control unit obtains the raw data through a mobile industry processor interface and adds the compensated data to the raw data to obtain the compensated driving signal.
5. The display panel of claim 1, wherein the control unit and the compensation unit are connected to the flash memory unit via a serial external interface.
6. The utility model provides a display device who compensates display interruption, its characterized in that, display device includes display panel, display panel includes drive unit, drive unit is used for driving display panel, drive unit is connected with external flash memory unit, flash memory unit is used for the storage compensation time and compensates intensity, drive unit includes the control unit and compensation unit, the control unit respectively with compensation unit with flash memory unit connects, wherein:
the control unit acquires the compensation time from the flash memory unit when the driving unit is operated, and controls the compensation unit to acquire the compensation time and the compensation intensity when the compensation time is reached; the compensation unit obtains compensation data according to the compensation intensity, and the control unit compensates the received original data according to the compensation data and outputs a compensated driving signal;
the compensation time includes a first compensation time before the display interruption and a second compensation time after the display interruption.
7. The display device according to claim 6, wherein the driving unit further comprises a storage unit connected to the compensation unit, and when the driving unit is operated, the compensation unit acquires the compensation time and the compensation intensity from the flash memory unit, derives compensation data based on the compensation intensity, and stores the compensation data, the compensation time, and the compensation intensity in the storage unit; and when the compensation time is up, the compensation unit acquires the compensation data from the storage unit and sends the compensation data to the control unit.
8. The display device according to claim 7, wherein the control unit is connected to the compensation unit through an interrupt interface, and when the interrupt interface outputs a high level, the compensation unit obtains the compensation data; when the interrupt interface outputs a low level, the compensation unit stops working, and the driving signal output by the control unit is the original data.
9. The display device according to claim 8, wherein the control unit obtains the original data through a mobile industry processor interface and adds the compensated data to the original data to obtain the compensated driving signal.
10. The display device according to claim 6, wherein the control unit and the compensation unit are connected to the flash memory unit through a serial external interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611207454.1A CN106648239B (en) | 2016-12-23 | 2016-12-23 | Display device and display panel for compensating display interruption |
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| CN201611207454.1A CN106648239B (en) | 2016-12-23 | 2016-12-23 | Display device and display panel for compensating display interruption |
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| CN106648239B true CN106648239B (en) | 2020-01-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109003571A (en) * | 2018-10-10 | 2018-12-14 | 合肥惠科金扬科技有限公司 | The driving circuit and display device of display panel |
| CN112511716B (en) * | 2020-11-17 | 2023-06-30 | Oppo广东移动通信有限公司 | Image display method, DDIC chip, AP, display screen module and terminal |
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| CN104933991A (en) * | 2015-07-06 | 2015-09-23 | 京东方科技集团股份有限公司 | A pixel drive circuit, a display substrate, a driving method thereof and a display apparatus |
| CN105118438A (en) * | 2015-09-21 | 2015-12-02 | 京东方科技集团股份有限公司 | Pixel drive circuit and method, pixel circuit, and display device |
| CN105957490A (en) * | 2016-07-13 | 2016-09-21 | 武汉华星光电技术有限公司 | Drive circuit and liquid crystal displayer having drive circuit |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104933991A (en) * | 2015-07-06 | 2015-09-23 | 京东方科技集团股份有限公司 | A pixel drive circuit, a display substrate, a driving method thereof and a display apparatus |
| CN105118438A (en) * | 2015-09-21 | 2015-12-02 | 京东方科技集团股份有限公司 | Pixel drive circuit and method, pixel circuit, and display device |
| CN105957490A (en) * | 2016-07-13 | 2016-09-21 | 武汉华星光电技术有限公司 | Drive circuit and liquid crystal displayer having drive circuit |
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