CN106023887B - Reduce the device and method of OLED display panel ghost - Google Patents
Reduce the device and method of OLED display panel ghost Download PDFInfo
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- CN106023887B CN106023887B CN201610439504.2A CN201610439504A CN106023887B CN 106023887 B CN106023887 B CN 106023887B CN 201610439504 A CN201610439504 A CN 201610439504A CN 106023887 B CN106023887 B CN 106023887B
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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]
-
- 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
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- 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)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention relates to a kind of device and methods for reducing OLED display panel ghost.The device of the reduction OLED display panel ghost, including：Control unit, detecting unit and display data arrangement units；The control unit receiving area controls signal and time control signal, and area control signal is used to determine size, the position of target area, and how long time control signal starts to carry out Special display to target area afterwards for determining display static pattern；The detecting unit receives raw image data, and detects the target area with the presence or absence of static pattern, and the target area image information after detection is sent into the display data arrangement units；The display data arrangement units receive raw image data, also receive the control signal of the control unit and the target area image information of the detecting unit, judge whether to start the Special display of target area.The present invention also provides corresponding methods.The present invention can reduce the generation of ghost, and not interfere with the whole display effect of panel.
Description
Technical field
The present invention relates to technical field of liquid crystal display more particularly to a kind of device for reducing OLED display panel ghost and sides
Method.
Background technology
Flat display apparatus has many merits such as thin fuselage, power saving, radiationless, is widely used.It is existing
Flat display apparatus mainly includes liquid crystal display device (LCD, Liquid Crystal Display) and organic light emitting display fills
It puts (OLED, Organic Light Emitting Display).
Organic light-emitting display device has the spies such as self-luminous, high brightness, wide viewing angle, high contrast, deflection, low energy consumption
Property, therefore widely paid close attention to, and as the display mode of a new generation, started gradually to replace traditional liquid crystal display device,
It is widely used in mobile phone screen, computer monitor, full-color TV etc..OLED display technologies and traditional LCD display modes are not
Together, without backlight, the very thin coating of organic material of use and glass substrate, when have electric current by when, these organic materials
It will shine.
Current major part OLED is using DC driven, and hole and electronics enter luminescent layer from positive and negative anodes respectively, sending out
It is combined in photosphere, radioluminescence.As shown in Figure 1, it is the structure diagram of prior art sub-pixel.When the grid of this journey pixel
When pole (Gate) line is opened, data (Date) line charges to capacitance C.The voltage value of capacitance C is as the second driving transistor
The grid voltage of T2 controls the size of current for flowing through OLED with this.When display screen works, all pixels all persistently keep hair
Light state.
But as usage time increases, have hole and electronics is accumulated in respective transport layer and the interface of luminescent layer,
Built in field is formed inside OLED, increases the threshold voltage of OLED, reduces its light emission luminance.For oled panel, some districts
Domain is particularly easy to therefore generate ghost (Image Sticking), such as the angle of long-time display TV platform station symbol and advertisement on screen
Fall, show for a long time the region of static image because pixel age will cause with other region differences it is long-standing residual
Shadow.
Invention content
Therefore, the purpose of the present invention is to provide a kind of device for reducing OLED display panel ghost, in panel some districts
When domain shows static pattern, shorten the OLED fluorescent lifetimes for needing to show same pattern for a long time, reduce the generation of ghost.
Another object of the present invention is to provide a kind of method for reducing OLED display panel ghost, in panel some regions
When showing static pattern, shorten the OLED fluorescent lifetimes for needing to show same pattern for a long time, reduce the generation of ghost.
To achieve the above object, the present invention provides it is a kind of reduce OLED display panel ghost device, including：Control is single
Member, detecting unit and display data arrangement units；
The control unit receiving area controls signal and time control signal, and area control signal is used to determine target area
Size, position, time control signal for determine display static pattern how long start afterwards to target area carry out it is special
Display；
The detecting unit receives raw image data, and detects the target area with the presence or absence of static pattern, after detection
Target area image information be sent into the display data arrangement units；
The display data arrangement units receive raw image data, also receive control signal and the detecting of the control unit
The target area image information of unit judges whether to start the Special display of target area.
Wherein, to original image without specially treated, which shows general the display data arrangement units
Logical image.
Wherein, which handles target area, and static pattern is shown in the target area
Pixel alternately shines in different frame.
Wherein, which detects the target area with the presence or absence of static pattern using edge detection mode.
Wherein, which is integrated in sequence controller.
Wherein, which is individually present.
To achieve the above object, the present invention also provides it is a kind of reduce OLED display panel ghost method, including：
Step 1, setting detecting target area and the time for showing startup function after static pattern；
Step 2 starts to detect target area, and panel is normally shown；
Step 3, when there are static pattern, and being shown after a certain period of time in target area, start the spy to this target area
Different display function；
Step 4, the target area for showing static pattern, adjacent pixel alternately shine in different frame；
Step 5 while target area is persistently detected, if static pattern always exists, alternately displayed always, such as
Fruit static pattern disappears, then stops alternate display function, which shows normal image；Reenter step 2.
Wherein, which detects the target area with the presence or absence of static pattern using edge detection mode.
Wherein, the size and location of the target area determines according to demand.
Wherein, the size and location of the target area is automatically determined by sequence controller according to display image.
In conclusion the device and method that the present invention reduces OLED display panel ghost can make the picture of display static pattern
Plain fluorescent lifetime reduces half, so as to reduce the generation of ghost, and does not interfere with the whole display effect of panel, can ensure
The usage experience of viewer.
Description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the specific embodiment to the present invention, technical scheme of the present invention will be made
And other advantageous effects are apparent.
In attached drawing,
Fig. 1 is the structure diagram of prior art sub-pixel；
Fig. 2 is the block diagram for one preferred embodiment of device that the present invention reduces OLED display panel ghost；
Fig. 3 is the flow chart for one preferred embodiment of method that the present invention reduces OLED display panel ghost；
Fig. 4 is the display effect signal for the one preferred embodiment n-th frame of method that the present invention reduces OLED display panel ghost
Figure；
Fig. 5 is that the display effect for one the (n+1)th frame of preferred embodiment of method that the present invention reduces OLED display panel ghost is shown
It is intended to.
Specific embodiment
Referring to Fig. 2, the block diagram of one preferred embodiment of device of OLED display panel ghost is reduced for the present invention.
The preferred embodiment mainly includes：Control unit 10, detecting unit 20 and display data arrangement units 30；The control unit 10 connects
Area control signal and time control signal are received, area control signal is used to determine size, the position of target area, time control
How long signal starts to carry out Special display to target area afterwards for determining display static pattern；The detecting unit 20 receives
Raw image data, and the target area is detected with the presence or absence of static pattern, the target area image information after detection is sent into
The display data arrangement units 30；The display data arrangement units 30 receive raw image data, also receive the control unit 10
Control signal and the detecting unit 20 target area image information, judge whether start target area Special display.
Display data arrangement units 30 can be to original image without specially treated, which shows commonly
Image.The display data arrangement units 30 can also be handled target area, and static pattern is shown in the target area
Pixel alternately shines in different frame.The detecting unit 20 can use any detection mode, such as edge detection, detect the target
Region whether there is static pattern.
The device of the reduction OLED display panel ghost can be increased in the original drive system of OLED display panel.Example
Such as, which can be integrated in sequence controller；The device can also be individually present.
The region that the device of present invention reduction OLED display panel ghost is easier to generate ghost to panel is detected,
After detecting that this region shows static pattern, the pixel for showing static pattern is handled, these pixels are handed in different frame
For shining, each pixel shines when different with adjacent pixel.
Referring to Fig. 3, the flow chart of one preferred embodiment of method of OLED display panel ghost is reduced for the present invention.Referring to
Fig. 3, this method mainly include：
Step 1, setting detecting target area and the time for showing startup function after static pattern；
Step 2 starts to detect target area, and panel is normally shown；
Step 3, when there are static pattern, and being shown after a certain period of time in target area, start the spy to this target area
Different display function；
Step 4, the target area for showing static pattern, adjacent pixel alternately shine in different frame；
Step 5 while target area is persistently detected, if static pattern always exists, alternately displayed always, such as
Fruit static pattern disappears, then stops alternate display function, which shows normal image；Reenter step 2.
The step 2 can detect the target area with the presence or absence of static pattern using edge detection mode.
This method, which is directed to, is easier the region for generating ghost in panel, such as：Need long-time display TV platform station symbol or
Four angles of advertisement carry out specially treated.The image of Display panel is detected, when detecting that there are static in target area
Pattern when, that is, start processing function.Design using the present invention, for static region, adjacent pixel alternately shines.Exist
Inside one frame time, the pixel in stationary pattern only has half to shine, next frame then other half pixel light emission.Target area
Size and location can all determine according to demand, it might even be possible to be entire panel.Detection area can be set in advance, also can by when
Sequence controller is automatically determined according to display image.
The device or method of OLED display panel ghost are reduced using the present invention：It can be answered to avoid change dot structure
For various AMOLED panels；Panel aperture opening ratio will not be reduced；It is highly practical for the region that ghost is susceptible in panel；
Only small region can be detected, taken up less resources, it is easy to accomplish；Only the static pattern of long-time display is handled,
Such as TV station's station symbol, advertisement etc., whole display effect is influenced small.
It is the one preferred embodiment n-th frame of method that the present invention reduces OLED display panel ghost referring to Fig. 4 and Fig. 5, Fig. 4
Display effect schematic diagram, Fig. 5 are the display effect schematic diagram of the (n+1)th frame.It is every in figure in figure by taking the pixel region of 10*10 as an example
One grid represents a pixel.If in figure in the pixel region of 10*10, detect that static state is shown in the region in frame
Pattern, after a time has passed (this time value can be set), the pixel of this area of the pattern start to replace in different frame
It shines, each pixel and adjacent pixel have different luminances.In n-th frame, as shown in Figure 4；Then in the (n+1)th frame, such as Fig. 5
It is shown.Non-static region is normally shown, in frame in marked region, black picture element represents 0 grayscale, and white pixel represents normal hair
Light.Show that the region adjacent pixel of static pattern alternately shines, the fluorescent lifetime of each pixel halves in this region, improves with this
Ghost situation.
In conclusion after the application present invention reduces the device or method of OLED display panel ghost, when being easier to generate
There are the pixel light emission time of display static pattern during static pattern, can be made to reduce half in the region of ghost, so as to reduce
The generation of ghost.And these static patterns are carried out, as managed, such as TV station's station symbol, advertisement, the entirety of panel can't to be influenced
Display effect can ensure the usage experience of viewer..
The above, for those of ordinary skill in the art, can according to the technique and scheme of the present invention and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the appended right of the present invention
It is required that protection domain.
Claims (10)
1. a kind of device for reducing OLED display panel ghost, which is characterized in that including：Control unit, detecting unit and display
Data arrangement unit；
The control unit receiving area controls signal and time control signal, and area control signal is used to determine the big of target area
How long small, position, time control signal start to carry out Special display to target area afterwards for determining display static pattern,
The Special display refers to that respective pixel alternately shines in different frame and shown during display pattern；
The detecting unit receives raw image data, and detects the target area with the presence or absence of static pattern, by the mesh after detection
Mark regional image information is sent into the display data arrangement units；
The display data arrangement units receive raw image data, also receive the control signal and the detecting unit of the control unit
Target area image information, judge whether start target area Special display.
2. the device of OLED display panel ghost is reduced as described in claim 1, which is characterized in that display data arrangement is single
For member to original image without specially treated, which shows normal image.
3. the device of OLED display panel ghost is reduced as described in claim 1, which is characterized in that display data arrangement is single
Member handles target area, shows that the pixel of static pattern alternately shines in different frame in the target area.
4. the device of OLED display panel ghost is reduced as described in claim 1, which is characterized in that the detecting unit uses side
Edge detection mode detects the target area with the presence or absence of static pattern.
5. the device of OLED display panel ghost is reduced as described in claim 1, which is characterized in that the device is integrated in sequential
In controller.
6. the device of OLED display panel ghost is reduced as described in claim 1, which is characterized in that the device is individually present.
A kind of 7. method for reducing OLED display panel ghost, which is characterized in that including：
Step 1, setting detecting target area and the time for showing startup function of special displaying after static pattern, the Special display
Refer to that respective pixel alternately shines in different frame and shown during display pattern；
Step 2 starts to detect target area, and panel is normally shown；
Step 3, when there are static pattern, and being shown after a certain period of time in target area, start to the special aobvious of this target area
Show function；
Step 4, the target area for showing static pattern, adjacent pixel alternately shine in different frame；
Step 5 while target area is persistently detected, if static pattern always exists, alternately displayed always, if quiet
State pattern loss, then stop function of special displaying, which shows normal image；Reenter step 2.
8. the method for OLED display panel ghost is reduced as claimed in claim 7, which is characterized in that the step 2 uses edge
Detection mode detects the target area with the presence or absence of static pattern.
9. the method for OLED display panel ghost is reduced as claimed in claim 7, which is characterized in that the target area is entire
Regional area in the OLED display panel or the OLED display panel.
10. as claimed in claim 7 reduce OLED display panel ghost method, which is characterized in that the target area it is big
Small and position is automatically determined by sequence controller according to display image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610439504.2A CN106023887B (en) | 2016-06-16 | 2016-06-16 | Reduce the device and method of OLED display panel ghost |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610439504.2A CN106023887B (en) | 2016-06-16 | 2016-06-16 | Reduce the device and method of OLED display panel ghost |
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| CN106023887A CN106023887A (en) | 2016-10-12 |
| CN106023887B true CN106023887B (en) | 2018-07-10 |
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| CN114333709B (en) * | 2021-12-21 | 2023-05-23 | 惠州视维新技术有限公司 | Backlight compensation method and device for display screen, display screen equipment and storage medium |
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