CN106409226A - Display screen residual image prevention method and device - Google Patents
Display screen residual image prevention method and device Download PDFInfo
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- CN106409226A CN106409226A CN201610988864.8A CN201610988864A CN106409226A CN 106409226 A CN106409226 A CN 106409226A CN 201610988864 A CN201610988864 A CN 201610988864A CN 106409226 A CN106409226 A CN 106409226A
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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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0257—Reduction of after-image effects
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)
- Control Of El Displays (AREA)
Abstract
The invention discloses a display screen residual image prevention method and a display screen residual image prevention device. The display screen residual image prevention method comprises the steps of: acquiring original RGB display data; updating a counter-register value mapping table according to load level of the original RGB display data of each pixel point; and with regard to each pixel point, performing display based on the original RGB display data and the counter-register value mapping table. By adopting the prevention method, the occurrence of a display screen residual image can be prevented, and the service life of a display screen can be prolonged.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of prevention method of display screen ghost and device.
Background technology
Numerous mobile phone vendors are all using flexible AMOLED display screen at present, but AMOLED display screen has inborn technology and asks
Topic；Because AMOLED uses luminous organic material to light, macroscopically the luminosity of organic material can increase in time and drop
Low and irrecoverable；The expendable brightness decay of AMOLED display screen partial display area, can lead to show ghost.
Content of the invention
Embodiments provide a kind of prevention method of display screen ghost and device, display screen ghost can be prevented
Occur, extend display screen service life.
The present invention provides a kind of prevention method of display screen ghost, including：Obtain original RGB video data；According to each
The load height refresh counter register value mapping table of the original RGB video data of pixel；And it is directed to each pixel, root
Shown according to original RGB video data and counter register value mapping table.
Wherein, the load height refresh counter register value mapping of the original RGB video data according to each pixel
The step of table includes：Whether the original RGB video data judging each pixel is high capacity；If it is, counter register
The corresponding added value of device value mapping table adds 1；If it is not, then the corresponding added value of counter register value mapping table subtracts 1.
Wherein, whether the original RGB video data judging each pixel is that the step of high capacity includes：Every default frame
Whether the original RGB video data judging once each pixel is as high capacity.
Wherein, included according to the step that original RGB video data and counter register value mapping table are shown：According to
Original RGB video data and counter register value mapping table form new RGB video data, and show number according to new RGB
According to being shown.
Wherein, form the step of new RGB video data according to original RGB video data and counter register value mapping table
Rapid inclusion：The RGB video data added value corresponding with counter register value mapping table that new RGB video data is original it
With.
The present invention also provides a kind of preventing mean of display screen ghost, including：Processing module, shows for obtaining original RGB
Registration evidence；Pressure Analysis module, is connected with processing module, for the load of the original RGB video data according to each pixel
Height refresh counter register value mapping table；And display module, it is connected with Pressure Analysis module, for for each pixel
Point, is shown according to original RGB video data and counter register value mapping table.
Wherein, Pressure Analysis module is used for：Whether the original RGB video data judging each pixel is high capacity；As
Fruit is that then the corresponding added value of counter register value mapping table adds 1；If it is not, then counter register value mapping table corresponds to
Added value subtract 1.
Wherein, Pressure Analysis module is used for：Every the original RGB video data that default frame judges once each pixel it is
No for high capacity.
Wherein, display module is used for：Formed new according to original RGB video data and counter register value mapping table
RGB video data, and shown according to new RGB video data.
Wherein, the RGB video data that new RGB video data is original is corresponding with counter register value mapping table attached
Value added sum.
By such scheme, the invention has the beneficial effects as follows：The present invention passes through to obtain original RGB video data；According to every
The load height refresh counter register value mapping table of the original RGB video data of individual pixel；And it is directed to each pixel,
Shown according to original RGB video data and counter register value mapping table, the generation of display screen ghost can be prevented, prolong
Long display screen service life.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.Wherein：
Fig. 1 is the schematic flow sheet of the prevention method of display screen ghost of the embodiment of the present invention；
Fig. 2 is the structural representation of the pixel-driving circuit of the embodiment of the present invention；
Fig. 3 is the method schematic diagram of the prevention ghost of the embodiment of the present invention；
Fig. 4 is the structural representation of the preventing mean of display screen ghost of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making performing creative labour
Embodiment, broadly falls into the scope of protection of the invention.
Fig. 1 is the schematic flow sheet of the prevention method of display screen ghost of the embodiment of the present invention.The prevention of display screen ghost
Method can apply to mobile communication terminal, such as mobile phone, ipad etc..As shown in figure 1, the prevention method of display screen ghost includes：
Step S10：Obtain original RGB video data.
Fig. 2 is the structural representation of the pixel-driving circuit of the embodiment of the present invention.It is preferably active matrix organic light-emitting two
Basic pixel driver on polar body (Active-matrix organic light emitting diode, AMLOLED) panel
Circuit.Wherein, EL is luminescent device, and Cst is storage capacitance, and Vdata is data wire, and Scan is scan line.Luminescent device EL by
Two thin film transistor (TFT)s (Thin Film Transistor, TFT) Q1, Q2 control, and scan line Scan controls every one-row pixels
Open and close, data wire Vdata is the voltage being driven in each pixel aobvious.Specifically, control the by scan line Scan
One thin film transistor (TFT) Q1 conducting, the voltage on data wire Vdata transmits to the grid of the second thin film transistor (TFT) Q2, and control second is thin
Film transistor Q2 turns on, and then controls luminescent device EL to light.
In step slo, by detecting the pressure of data wire Vdata on AMLOLED panel, obtain the original of pixel
RGB video data.
Step S11：The load height refresh counter register value of the original RGB video data according to each pixel reflects
Firing table.
In embodiments of the present invention, before step S11, prestore counter register value mapping table, including each pixel
The corresponding added value of point.In counter register value mapping table, the corresponding added value of each pixel can just can be born.In step
In S11, judge whether the original RGB video data of each pixel is high capacity；If it is, counter register value mapping
In table, the corresponding added value of this pixel adds 1；If it is not, then this pixel is corresponding additional in counter register value mapping table
Value subtracts 1.
In embodiments of the present invention, every default frame judge once the original RGB video data of each pixel whether as
High capacity.Preferably, each frame picture or a few frame picture judge once.
Step S12：For each pixel, carried out according to original RGB video data and counter register value mapping table
Display.
In step s 12, form new RGB according to original RGB video data and counter register value mapping table to show
Data, and shown according to new RGB video data.Specifically, new RGB video data is original RGB video data
Added value sum corresponding with counter register value mapping table.
Taking the display screen of HD resolution (720*1280) as a example, the R sub-pixel of (720,1000) position of pixel original
Video data is 0x7F, and the video data that will be greater than 0x3F is judged to high pressure, then counter register value 0x7600+1=
0x7601, searches counter register value mapping table, and the corresponding added value of 0x7601 is -0x02, then current new display
Data is 0x7F-0x02=0x7D.
In embodiments of the present invention, new by formed according to original RGB video data and counter register value mapping table
RGB video data be converted into mobile Industry Processor Interface (Mobile Industry Processor Interface,
Mipi) package, gives AMOLED display screen module to be shown.
The embodiment of the present invention is passed through to obtain original RGB video data；Original RGB video data according to each pixel
Load height refresh counter register value mapping table；For each pixel, posted according to original RGB video data and enumerator
Storage value mapping table is shown, the voltage of adjustment pixel corresponding data wire Vdata, reduces the pressure of data wire Vdata,
And then the generation of display screen ghost can be prevented, extend display screen service life.Referring to Fig. 3, wherein, figure a represents this pixel
It is in high-pressure state for a long time, figure b changes the corresponding data wire of this pixel after representing application present invention method
The voltage of Vdata, reduces brightness degree, and then can prevent the generation of display screen ghost, extends display screen service life.
Fig. 4 is the structural representation of the preventing mean of display screen ghost of the embodiment of the present invention.As shown in figure 4, display screen
The preventing mean 10 of ghost includes：Processing module 11, Pressure Analysis module 12 and display module 13.Processing module 11 is used for obtaining
Take original RGB video data.Pressure Analysis module 12 is connected with processing module 11, for the original RGB according to each pixel
The load height refresh counter register value mapping table of video data.Display module 13 is connected with Pressure Analysis module 12, uses
In for each pixel, shown according to original RGB video data and counter register value mapping table.
In embodiments of the present invention, the preventing mean 10 of display screen ghost is preferably mobile communication terminal, such as mobile phone, ipad
Deng.Pixel is preferably the pixel on AMLOLED panel, on AMLOLED panel, scans beating of line traffic control each row pixel
Open and close, data wire is the voltage being driven in each pixel aobvious.Processing module 11 is passed through to detect data on AMLOLED panel
The pressure of line Vdata, obtains the original RGB video data of pixel.
In embodiments of the present invention, the preventing mean 10 of display screen ghost prestores counter register value mapping table, including
The corresponding added value of each pixel.In counter register value mapping table, the corresponding added value of each pixel can just can be born.
Pressure Analysis module 12 is used for：Whether the original RGB video data judging each pixel is high capacity；If it is, counting
The corresponding added value of device register value mapping table adds 1；If it is not, then the corresponding added value of counter register value mapping table subtracts 1.
Wherein, whether Pressure Analysis module 12 judges once the original RGB video data of each pixel as high capacity every default frame.
Preferably, each frame picture of Pressure Analysis module 12 or a few frame picture judge once.
In embodiments of the present invention, display module 13 is used for：Reflected according to original RGB video data and counter register value
Firing table forms new RGB video data, and is shown according to new RGB video data.Wherein, new RGB video data is
Original RGB video data added value sum corresponding with counter register value mapping table.
Taking the display screen of HD resolution (720*1280) as a example, the R sub-pixel of (720,1000) position of pixel original
Video data is 0x7F, and the video data that will be greater than 0x3F is judged to high pressure, then counter register value 0x7600+1=
0x7601, searches counter register value mapping table, and the corresponding added value of 0x7601 is -0x02, then current new display
Data is 0x7F-0x02=0x7D.
In embodiments of the present invention, display module 13 passes through to adjust the voltage of pixel corresponding data wire Vdata, reduces
The pressure of data wire Vdata, and then the generation of display screen ghost can be prevented, extend display screen service life.Display screen ghost
The new RGB video data that will be formed according to original RGB video data and counter register value mapping table of preventing mean 10
It is converted into mobile Industry Processor Interface (Mobile Industry Processor Interface, mipi) package, give
AMOLED display screen module is to be shown.
In sum, the present invention passes through to obtain original RGB video data；Original RGB display number according to each pixel
According to load height refresh counter register value mapping table；And it is directed to each pixel, according to original RGB video data and meter
Number device register value mapping table is shown, can prevent the generation of display screen ghost, extends display screen service life.
The foregoing is only embodiments of the invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of prevention method of display screen ghost is it is characterised in that methods described includes：
Obtain original RGB video data；
The load height refresh counter register value mapping table of the described original RGB video data according to each pixel；And
For pixel each described, carried out according to described original RGB video data and described counter register value mapping table
Display.
2. method according to claim 1 is it is characterised in that the described described original RGB according to each pixel shows
The step of the load height refresh counter register value mapping table of data includes：
Whether the described original RGB video data judging each pixel is high capacity；
If it is, the corresponding added value of described counter register value mapping table adds 1；If it is not, then described counter register
The corresponding added value of device value mapping table subtracts 1.
3. method according to claim 2 is it is characterised in that the described original RGB of described each pixel of judgement shows
Whether data is that the step of high capacity includes：Judge once the described original RGB video data of each pixel every default frame
Whether it is high capacity.
4. method according to claim 1 it is characterised in that described according to described original RGB video data and described meter
The step that number device register value mapping table is shown includes：
New RGB video data is formed according to described original RGB video data and described counter register value mapping table, and root
Shown according to described new RGB video data.
5. method according to claim 4 it is characterised in that described according to described original RGB video data and described meter
The step that number device register value mapping table forms new RGB video data includes：Described new RGB video data is described original
RGB video data added value sum corresponding with described counter register value mapping table.
6. a kind of preventing mean of display screen ghost is it is characterised in that described preventing mean includes：
Processing module, for obtaining original RGB video data；
Pressure Analysis module, is connected with described processing module, for the described original RGB video data according to each pixel
Load height refresh counter register value mapping table；And
Display module, is connected with described Pressure Analysis module, for for pixel each described, being shown according to described original RGB
Registration evidence and described counter register value mapping table are shown.
7. preventing mean according to claim 6 is it is characterised in that described Pressure Analysis module is used for：
Whether the described original RGB video data judging each pixel is high capacity；
If it is, the corresponding added value of described counter register value mapping table adds 1；If it is not, then described counter register
The corresponding added value of device value mapping table subtracts 1.
8. preventing mean according to claim 7 is it is characterised in that described Pressure Analysis module is used for：Every default frame
Whether the described original RGB video data judging once each pixel is as high capacity.
9. preventing mean according to claim 6 is it is characterised in that described display module is used for：According to described original RGB
Video data and described counter register value mapping table form new RGB video data, and according to described new RGB display number
According to being shown.
10. preventing mean according to claim 9 is it is characterised in that described new RGB video data is described original
RGB video data added value sum corresponding with described counter register value mapping table.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988864.8A CN106409226A (en) | 2016-11-09 | 2016-11-09 | Display screen residual image prevention method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988864.8A CN106409226A (en) | 2016-11-09 | 2016-11-09 | Display screen residual image prevention method and device |
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| CN106409226A true CN106409226A (en) | 2017-02-15 |
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