CN105679222A - Pixel compensation method and device - Google Patents
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- CN105679222A CN105679222A CN201610203134.2A CN201610203134A CN105679222A CN 105679222 A CN105679222 A CN 105679222A CN 201610203134 A CN201610203134 A CN 201610203134A CN 105679222 A CN105679222 A CN 105679222A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000001514 detection method Methods 0.000 claims description 46
- 238000004020 luminiscence type Methods 0.000 claims description 19
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- 230000006870 function Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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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]
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
An embodiment of the invention discloses a pixel compensation method and device. The method comprises the following steps: detecting a current attenuation state of blue sub-pixel points in screen pixels, and judging whether the current attenuation state of the blue sub-pixel points meets a preset compensation condition; and if so, lightening white sub-pixel points in the screen pixels so as to compensate light of the blue sub-pixel points through the white sub-pixel points. According to the pixel compensation method and device, brightness compensation can be carried out on the blue sub-pixel points through the preset white sub-pixel points to improve brightness uniformity of the display screen.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of pixel compensation method and device.
Background technology
At present, Organic Light Emitting Diode (OrganicLight-EmittingDiode, referred to as " OLED ") as the emerging application technology of flat-panel screens, owing to having self-luminous characteristic, do not need backlight, electric energy can be saved, the advantages such as visible angle is big, it is used widely in the terminals such as mobile phone, DV, panel computer and television set.
Wherein, OLED luminescent material is made up of three primary colours, including three kinds of luminescent materials of red, green, blue. Owing to OLED is self luminous, its luminescence process is exactly the process that OLED material constantly consumes, and therefore, As time goes on, OLED material can occur aging. According to statistics, wherein blue emitting material aging speed is usually the fastest, and its aging speed is often several times of redness and green luminescent material, causes that OLED display screen bright chroma is uneven.
Summary of the invention
Embodiments provide a kind of pixel compensation method and device, it is possible to by preset white sub-pixels point, blue subpixels is clicked on line brightness/chrominance and compensate, to promote display screen bright chroma uniformity.
The embodiment of the invention discloses a kind of pixel compensation method, it is applied in terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, described screen pixels also includes white sub-pixels point, and described method includes:
Detect the current attenuation state of blue subpixels point in described screen pixels, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition;
If meeting described predesigned compensation condition, then light the white sub-pixels point in described screen pixels, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
Optionally, the current attenuation state of the blue subpixels point in the described screen pixels of described detection, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition, including:
Add up the use duration of blue subpixels point in described screen pixels;
Whether the described use duration of detection statistics exceedes default very first time threshold value;
If exceeding described very first time threshold value, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, the use duration of the blue subpixels point in the described screen pixels of described statistics, including:
Obtaining the blue subpixels point state in which in described screen pixels, described state includes luminance and non-light emitting state;
When described blue subpixels point state in which is non-light emitting state, stop timing;
When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point.
Optionally, the current attenuation state of the blue subpixels point in the described screen pixels of described detection, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition, including:
Add up the bright screen duration of described display screen;
Whether the described bright screen duration of detection statistics exceedes the second default time threshold;
If exceeding described second time threshold, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, described method also includes:
Preset grey decision-making compensates table, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
The described white sub-pixels point lighted in described screen pixels, including:
The compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point is found out from described grey decision-making compensation table;
Call the point of the white sub-pixels in described screen pixels and export the described compensation grey decision-making found out.
Correspondingly, the embodiment of the invention also discloses a kind of pixel compensation device, it is arranged in terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, described screen pixels also includes white sub-pixels point, and described device includes:
Detection module, for detecting the current attenuation state of the blue subpixels point in described screen pixels, and judges whether the current attenuation state of described blue subpixels point meets predesigned compensation condition;
Compensating module, for when the current attenuation state that the testing result of described detection module is described blue subpixels point meets described predesigned compensation condition, light the white sub-pixels point in described screen pixels, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
Optionally, described detection module includes:
First statistic unit, for adding up the use duration of the blue subpixels point in described screen pixels;
First detection unit, whether the described use duration for detecting described first statistic unit statistics exceedes default very first time threshold value;
First determines unit, for when described first detection unit detects that described use duration exceedes described very first time threshold value, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, described first statistic unit specifically for:
Obtaining the blue subpixels point state in which in described screen pixels, described state includes luminance and non-light emitting state;
When described blue subpixels point state in which is non-light emitting state, stop timing;
When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point.
Optionally, described detection module includes:
Second statistic unit, for adding up the bright screen duration of described display screen;
Second detection unit, whether the described bright screen duration for detecting described second statistic unit statistics exceedes the second default time threshold;
Second determines unit, for when described second detection unit detects that described bright screen duration exceedes described second time threshold, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, described device also includes:
Preset module, compensates table for preset grey decision-making, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
Described compensating module includes:
Search unit, for finding out the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point from described grey decision-making compensation table;
Pixel call unit, exports, for calling the white sub-pixels point in described screen pixels, the described compensation grey decision-making found out.
Adopt the embodiment of the present invention, have the advantages that
The embodiment of the present invention can pass through to detect the current attenuation state of the blue subpixels point in terminal screen pixel, and when the current attenuation state that judgement obtains this blue subpixels point meets predesigned compensation condition, trigger and start preset white sub-pixels point, the luminescence of this blue subpixels point is carried out bright chroma compensation by this white sub-pixels point, thus improving terminal display screen bright chroma uniformity.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of pixel compensation method that the embodiment of the present invention provides;
Fig. 2 is the schematic flow sheet of the another kind of pixel compensation method that the embodiment of the present invention provides;
Fig. 3 is the schematic flow sheet of another pixel compensation method that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of pixel compensation device that the embodiment of the present invention provides;
Fig. 5 is the structural representation of the another kind of pixel compensation device that the embodiment of the present invention provides;
Fig. 6 is the structural representation of another pixel compensation device that the embodiment of the present invention provides;
Fig. 7 is the structural representation of a kind of terminal that the embodiment of the present invention provides.
Detailed description of the invention
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 clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " and " the 3rd " etc. are for distinguishing different object, not for describing particular order. Additionally, term " including " and their any deformation, it is intended that cover non-exclusive comprising. Such as contain series of steps or the process of unit, method, system, product or equipment are not limited to step or the unit listed, but also include step or the unit do not listed alternatively, or also include other step intrinsic for these processes, method, product or equipment or unit alternatively.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe may be embodied at least one embodiment of the present invention in conjunction with the embodiments. Each position in the description occurs that this phrase might not each mean identical embodiment, neither with the independent of other embodiments mutual exclusion or alternative embodiment. Those skilled in the art explicitly and are implicitly understood by, and embodiment described herein can combine with other embodiments.
It should be understood that, the technical scheme of the embodiment of the present invention can be applied particularly to mobile phone (such as Android phone, iOS mobile phone etc.), television set, panel computer, mobile internet device (MobileInternetDevices, be called for short " MID "), personal digital assistant (PersonalDigitalAssistant, be called for short " PDA ") etc. is configured with in the terminal (Terminal) of OLED display screen.This terminal is also referred to as subscriber equipment (UserEquipment, referred to as " UE "), mobile terminal, wireless terminal or mobile platform (MobileStation, referred to as " MS ") etc., and the embodiment of the present invention does not limit.
The embodiment of the invention discloses a kind of pixel compensation method, device and terminal, it is possible to by preset white sub-pixels point, blue subpixels is clicked on line brightness/chrominance and compensate. Describe in detail individually below.
Refer to the schematic flow sheet that Fig. 1, Fig. 1 are a kind of pixel compensation method that the embodiment of the present invention provides. Concrete, the described method of the embodiment of the present invention can be applied particularly in terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point (R), green sub-pixels point (G) and blue subpixels point (B), also includes white sub-pixels point in described screen pixels. As it is shown in figure 1, the described pixel compensation method of the embodiment of the present invention may comprise steps of:
101, the current attenuation state of the blue subpixels point in detection terminal screen pixel.
It should be understood that, each sub-pixel point in this screen pixels can be an OLED, the OLED of this red sub-pixel point (R) correspondence is used for showing that the OLED of redness (glowing), green sub-pixels point (G) correspondence is used for showing green (green light), the OLED that blue subpixels point (B) is corresponding is used for showing blueness (blue light-emitting), and the OLED of white sub-pixels point (W) correspondence is used for showing white (emitting white light).
In specific embodiment, the startup of this preset white sub-pixels point can be controlled by detecting decay (aging) state of blue subpixels point. Optionally, this attenuation state can be through detecting the duration that uses of this blue subpixels point and determines, or what the bright screen duration that can be through detecting this terminal was determined, it is also possible to being that other modes are determined, the embodiment of the present invention does not limit.
102, judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, when whether the current attenuation state judging blue subpixels point meets predesigned compensation condition, whether the use duration that can be through detecting this blue subpixels point reaches a certain predetermined threshold value, or by detecting whether the bright screen duration of this terminal reaches another predetermined threshold value, determine whether to meet predesigned compensation condition. Namely determine when reaching threshold value and meet compensation condition, then can perform step 103; Otherwise, be unsatisfactory for compensation condition, then repeatable execution step 101 is to 102, until detecting that the attenuation state of this blue subpixels point meets this compensation condition.
103, the white sub-pixels point in described screen pixels is lighted, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
It should be understood that, this is lighted white sub-pixels point and represents that calling this white sub-pixels point when using this blue subpixels point compensates the luminescence of this blue subpixels point, it is to say, this blue subpixels point and this white sub-pixels point all need to start and light. Wherein, the white sub-pixels point that terminal is arranged can be through what independent driving controlled.
Further, when lighting this white sub-pixels point, the grey decision-making calling the output of this white sub-pixels point can be determined according to the differential declines degree of blue subpixels point. Thus, can compensating table by a preset grey decision-making, described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point.The white sub-pixels point in described screen pixels is lighted, it is possible to particularly as follows: find out the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point from described grey decision-making compensation table described in then; Call the point of the white sub-pixels in described screen pixels and export the described compensation grey decision-making found out. It is thus possible to the differential declines state according to blue subpixels point, it is determined that going out white sub-pixels point needs the different grey decision-making of output, i.e. this compensation grey decision-making so that achieves the bright chroma to OLED blue emitting material and compensates more intelligent and accurate.
In embodiments of the present invention, can pass through to detect the current attenuation state of the blue subpixels point in terminal screen pixel, and when the current attenuation state that judgement obtains this blue subpixels point meets predesigned compensation condition, trigger and start preset white sub-pixels point, the luminescence of this blue subpixels point is carried out bright chroma compensation by this white sub-pixels point, thus improving terminal display screen bright chroma uniformity.
Further, the schematic flow sheet that Fig. 2, Fig. 2 are the another kind of pixel compensation method that the embodiment of the present invention provides is referred to. Concrete, the described method of the embodiment of the present invention can be applied particularly in above-mentioned terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, and described screen pixels also includes white sub-pixels point. As in figure 2 it is shown, the described pixel compensation method of the embodiment of the present invention may comprise steps of:
201, preset grey decision-making compensates table, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point.
Concrete, the attenuation state of this blue subpixels point can be determined according to the use duration of this blue subpixels point, this grey decision-making compensation table then can include multiple use durations interval that each attenuation state of blue subpixels point is corresponding and the compensation grey decision-making that each use duration interval is corresponding with this. Wherein, each uses duration interval can be a time period, and each uses the time period non-overlapping copies that duration interval includes.
202, the use duration of blue subpixels point in described screen pixels is added up.
203, whether the described use duration of detection statistics exceedes default very first time threshold value.
204, determine that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, can determine the need for compensating by lighting white sub-pixels point by detecting the luminous duration of this blue subpixels point. The then use duration of the blue subpixels point in the described screen pixels of described statistics, it is possible to particularly as follows: the blue subpixels point state in which obtained in described screen pixels, described state includes luminance and non-light emitting state; When described blue subpixels point state in which is non-light emitting state, stop timing; When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point. Concrete, when the use duration this blue subpixels point being detected exceedes this very first time threshold value, step 204 can be performed; Otherwise, continue to add up the use duration of this blue subpixels point. Wherein, this luminescence duration is at the accumulative duration (being then not counted in accumulative duration when being in non-light emitting state) detecting that this blue subpixels point is under luminance, thus improving the white sub-pixels point for compensating to start the accuracy of time.
205, from described grey decision-making compensation table, the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point is found out.
206, call the white sub-pixels point in described screen pixels and export the described compensation grey decision-making found out.
Concrete, when lighting this white sub-pixels point, the grey decision-making calling the output of this white sub-pixels point can according to the differential declines degree of blue subpixels point as the use duration of this blue subpixels point be determined, the use duration at the currently used duration place that specifically can find out described blue subpixels point from preset grey decision-making compensation table is interval, and determines that this blue subpixels is clicked on line brightness/chrominance and compensates by compensation grey decision-making corresponding to this use duration interval. It is thus possible to the difference according to blue subpixels point uses duration, it is determined that going out white sub-pixels point needs the different grey decision-making of output, i.e. this compensation grey decision-making so that achieve the bright chroma to OLED blue emitting material and compensate more intelligent and accurate.
In embodiments of the present invention, can by the grey decision-making compensation table compensating grey decision-making of the preset differential declines state correspondence respectively including blue subpixels point, make when currently used duration blue subpixels point being detected exceedes preset time threshold, trigger to compensate from this grey decision-making and table obtains current attenuation state as used the compensation grey decision-making that duration is corresponding, and call this white sub-pixels point and export the luminescence to this blue subpixels point of this compensation grey decision-making and carry out bright chroma compensation, compensate blue pixel point because using the decay brought for a long time, thus improving terminal display screen bright chroma uniformity.
Further, the schematic flow sheet that Fig. 3, Fig. 3 are another pixel compensation method that the embodiment of the present invention provides is referred to. Concrete, the described method of the embodiment of the present invention can be applied particularly in above-mentioned terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, and described screen pixels also includes white sub-pixels point. As it is shown on figure 3, the described pixel compensation method of the embodiment of the present invention may comprise steps of:
301, preset grey decision-making compensates table, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of blue subpixels point.
Concrete, the attenuation state of this blue subpixels point can also be determined according to the bright screen duration of this terminal, this grey decision-making compensation table then can include multiple bright screen durations interval that each attenuation state of blue subpixels point is corresponding and the compensation grey decision-making corresponding with this each bright screen duration interval. Wherein, each bright screen duration interval can be a time period, and each uses the time period non-overlapping copies that duration interval includes.
302, the bright screen duration of terminal display screen is added up.
303, whether the described bright screen duration of detection statistics exceedes the second default time threshold.
304, determine that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, determine the need for compensating by lighting white sub-pixels point also by the bright screen duration detecting this terminal display screen. Concrete, this bright screen duration may refer to terminal display screen and is in illuminating state, accumulative duration (being not counted in this accumulative duration when going out and shield) when being lit (or being lit higher than the screen of preset percentage) if any arbitrary screen pixels, thus can when namely accumulative duration exceedes preset time threshold to the bright screen duration of statistics, determine that the decay of this blue subpixels point is excessive, demonstrate the need for by preset white sub-pixels point, this blue subpixels point being compensated, then can perform step 304.Otherwise, this bright screen duration is added up in continuation.
305, from described grey decision-making compensation table, the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point is found out.
306, call the white sub-pixels point in described screen pixels and export the described compensation grey decision-making found out.
Concrete, when lighting this white sub-pixels point, the grey decision-making calling the output of this white sub-pixels point can according to the differential declines degree of blue subpixels point as the bright screen duration of this terminal display screen be determined, specifically can find out the current bright screen of display screen from preset grey decision-making compensation table uses the bright screen duration at duration place interval, and determines that this blue subpixels is clicked on line brightness/chrominance and compensates by compensation grey decision-making corresponding to this bright screen duration interval. It is thus possible to the different bright screen durations according to terminal display screen, it is determined that going out white sub-pixels point needs the different grey decision-making of output, i.e. this compensation grey decision-making so that achieves the bright chroma to OLED blue emitting material and compensates more intelligent and accurate.
In embodiments of the present invention, can by the grey decision-making compensation table compensating grey decision-making of the preset differential declines state correspondence respectively including blue subpixels point, make when bright screen duration terminal display screen being detected exceedes preset time threshold, trigger to compensate from this grey decision-making and table obtains the compensation grey decision-making that current attenuation state is as corresponding in this bright screen duration, and call this white sub-pixels point and export the luminescence to this blue subpixels point of this compensation grey decision-making and carry out bright chroma compensation, compensate blue pixel point because using the decay brought for a long time, thus improving terminal display screen bright chroma uniformity.
Refer to the structural representation that Fig. 4, Fig. 4 are a kind of pixel compensation devices that the embodiment of the present invention provides. Concrete, the described device of the embodiment of the present invention can specifically be arranged in terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, and described screen pixels also includes white sub-pixels point. As shown in Figure 4, the described pixel compensation device of the embodiment of the present invention can include detection module 11 and compensating module 12. Wherein,
Described detection module 11, for detecting the current attenuation state of the blue subpixels point in described screen pixels, and judges whether the current attenuation state of described blue subpixels point meets predesigned compensation condition.
In specific embodiment, detection module 11 can trigger the startup of this preset white sub-pixels point by detecting decay (aging) state of blue subpixels point, such as by the use duration detecting this blue subpixels point, or determine whether the current attenuation state of this blue subpixels point meets predesigned compensation condition by detecting the bright screen duration of this terminal.
Described compensating module 12, for when the current attenuation state that the testing result of described detection module 11 is described blue subpixels point meets described predesigned compensation condition, light the white sub-pixels point in described screen pixels, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
It should be understood that, this is lighted white sub-pixels point and represents that calling this white sub-pixels point when using this blue subpixels point compensates the luminescence of this blue subpixels point, it is to say, this blue subpixels point and this white sub-pixels point all need to start and light. Wherein, this white sub-pixels point can be through what independent driving controlled.
Further, compensating module 12 is when lighting this white sub-pixels point, and the grey decision-making calling the output of this white sub-pixels point can be that the differential declines degree according to blue subpixels point is determined.
In embodiments of the present invention, can pass through to detect the current attenuation state of the blue subpixels point in terminal screen pixel, and when the current attenuation state that judgement obtains this blue subpixels point meets predesigned compensation condition, trigger and start preset white sub-pixels point, the luminescence of this blue subpixels point is carried out bright chroma compensation by this white sub-pixels point, thus improving terminal display screen bright chroma uniformity.
Further, the structural representation that Fig. 5, Fig. 5 are the another kind of pixel compensation devices that the embodiment of the present invention provides is referred to. Concrete, the described device of the embodiment of the present invention can include detection module 11 and the compensating module 12 of the pixel compensation device in above-mentioned Fig. 4 correspondence embodiment. Further, in embodiments of the present invention, described detection module 11 may particularly include:
First statistic unit 111, for adding up the use duration of the blue subpixels point in described screen pixels;
First detection unit 112, whether the described use duration for detecting described first statistic unit 111 statistics exceedes default very first time threshold value;
First determines unit 113, for when described first detection unit 112 detects that described use duration exceedes described very first time threshold value, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, in embodiments of the present invention, described first statistic unit 111 can be specifically for:
Obtaining the blue subpixels point state in which in described screen pixels, described state includes luminance and non-light emitting state;
When described blue subpixels point state in which is non-light emitting state, stop timing;
When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point.
In specific embodiment, detection module 11 can determine the need for compensating by lighting white sub-pixels point by detecting the luminous duration of this blue subpixels point. Concrete, this luminescence duration is at the accumulative duration (being then not counted in accumulative duration when being in non-light emitting state) detecting that this blue subpixels point is under luminance, thus improving this accuracy starting the time for the white sub-pixels point compensated.
Further alternative, in embodiments of the present invention, described device may also include that
Preset module 13, compensates table for preset grey decision-making, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
Described compensating module 12 comprises the steps that
Search unit 121, for finding out the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point from described grey decision-making compensation table;
Pixel call unit 122, exports, for calling the white sub-pixels point in described screen pixels, the described compensation grey decision-making found out.
Concrete, the attenuation state of this blue subpixels point can be determined according to the use duration of this blue subpixels point, then the multiple use durations that can include in this grey decision-making compensation table are interval, and the compensation grey decision-making that each use duration interval is corresponding with this. Wherein, each uses duration interval can be a time period, and each uses the time period non-overlapping copies that duration interval includes.
Concrete, when compensating module 12 lights this white sub-pixels point, the grey decision-making calling the output of this white sub-pixels point can according to the differential declines degree of blue subpixels point as the use duration of this blue subpixels point be determined, the use duration that specifically can pass through to search the currently used duration place that unit 121 finds out described blue subpixels point from preset grey decision-making compensation table is interval, and determine the compensation grey decision-making that this use duration interval is corresponding, then pixel call unit 122 can control white sub-pixels point export this compensation grey decision-making this blue subpixels is clicked on line brightness/chrominance compensate.It is thus possible to the difference according to blue subpixels point uses duration, it is determined that going out white sub-pixels point needs the different grey decision-making of output, i.e. this compensation grey decision-making so that achieve the bright chroma to OLED blue emitting material and compensate more intelligent and accurate.
In embodiments of the present invention, can by the grey decision-making compensation table compensating grey decision-making of the preset differential declines state correspondence respectively including blue subpixels point, make when currently used duration blue subpixels point being detected exceedes preset time threshold, trigger to compensate from this grey decision-making and table obtains current attenuation state as used the compensation grey decision-making that duration is corresponding, and call this white sub-pixels point and export the luminescence to this blue subpixels point of this compensation grey decision-making and carry out bright chroma compensation, compensate blue pixel point because using the decay brought for a long time, thus improving terminal display screen bright chroma uniformity.
Further, the structural representation that Fig. 6, Fig. 6 are another pixel compensation devices that the embodiment of the present invention provides is referred to. Concrete, the described device of the embodiment of the present invention can include detection module 11 and the compensating module 12 of the pixel compensation device in above-mentioned Fig. 4 correspondence embodiment. Further, in embodiments of the present invention, described detection module 11 may particularly include:
Second statistic unit 114, for adding up the bright screen duration of described display screen;
Second detection unit 115, whether the described bright screen duration for detecting described second statistic unit 114 statistics exceedes the second default time threshold;
Second determines unit 116, for when described second detection unit 115 detects that described bright screen duration exceedes described second time threshold, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Further alternative, in embodiments of the present invention, described device may also include that
Preset module 13, compensates table for preset grey decision-making, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
Described compensating module 12 comprises the steps that
Search unit 121, for finding out the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point from described grey decision-making compensation table;
Pixel call unit 122, exports, for calling the white sub-pixels point in described screen pixels, the described compensation grey decision-making found out.
Concrete, the attenuation state of this blue subpixels point can also be determined according to the bright screen duration of this terminal, then can include multiple bright screen duration in this grey decision-making compensation table interval, and the compensation grey decision-making corresponding with this each bright screen duration interval. Wherein, each bright screen duration interval can be a time period, and each uses the time period non-overlapping copies that duration interval includes. Then detect the bright screen duration of this terminal display screen also by detection module 11 to determine the need for compensating by lighting white sub-pixels point. Concrete, this bright screen duration may refer to terminal display screen and is in illuminating state, accumulative duration (go out and be not counted in this accumulative duration when shielding) when being lit if any arbitrary screen pixels, thus can when namely accumulative duration exceedes preset time threshold to the bright screen duration of detection module 11 statistics, determine that the decay of this blue subpixels point is excessive, it is necessary to this blue subpixels point is compensated by preset white sub-pixels point.
Concrete, when compensating module 12 lights this white sub-pixels point, the grey decision-making calling the output of this white sub-pixels point can according to the differential declines degree of blue subpixels point as the bright screen duration of this terminal display screen be determined, specifically can pass through to search unit 121 from preset grey decision-making compensation table, find out the bright screen duration interval at display screen current bright screen use duration place, and determine the compensation grey decision-making that this bright screen duration interval is corresponding, then pixel call unit 122 can control white sub-pixels point export this compensation grey decision-making this blue subpixels is clicked on line brightness/chrominance compensate.It is thus possible to the different bright screen durations according to terminal display screen, it is determined that going out white sub-pixels point needs the different grey decision-making of output, i.e. this compensation grey decision-making so that achieves the bright chroma to OLED blue emitting material and compensates more intelligent and accurate.
In embodiments of the present invention, can by the grey decision-making compensation table compensating grey decision-making of the preset differential declines state correspondence respectively including blue subpixels point, make when bright screen duration terminal display screen being detected exceedes preset time threshold, trigger to compensate from this grey decision-making and table obtains the compensation grey decision-making that current attenuation state is as corresponding in this bright screen duration, and call this white sub-pixels point and export the luminescence to this blue subpixels point of this compensation grey decision-making and carry out bright chroma compensation, compensate blue pixel point because using the decay brought for a long time, thus improving terminal display screen bright chroma uniformity.
Refer to the structural representation that Fig. 7, Fig. 7 are a kind of terminals that the embodiment of the present invention provides, for performing above-mentioned pixel compensation method. Concrete, as it is shown in fig. 7, the described terminal of the embodiment of the present invention may include that at least one processor 100, at least one input equipment 200, at least one output device 300, memorizer 500 assembly such as grade. Wherein, these assemblies are communicatively coupled by one or more bus 400. It will be appreciated by those skilled in the art that, the structure of the terminal shown in Fig. 7 is not intended that the restriction to the embodiment of the present invention, it both can be busbar network, it can also be hub-and-spoke configuration, ratio can also be included and illustrate more or less of parts, or combine some parts, or different parts are arranged. Wherein:
Processor 100 is the control centre of terminal, utilize various interface and the various piece of the whole terminal of connection, by running or perform to be stored in the program in memorizer 500 and/or module, and call the data being stored in memorizer 500, to perform the various functions of terminal and to process data. Processor 100 can by integrated circuit (IntegratedCircuit is called for short IC) composition, for instance can be made up of the IC of single encapsulation, it is also possible to be made up of the encapsulation IC connecting many identical functions or difference in functionality. For example, processor 100 can only include central processing unit (CentralProcessingUnit, it is called for short CPU), can also be CPU, digital signal processor (digitalsignalprocessor, be called for short DSP), the combination of graphic process unit (GraphicProcessingUnit, be called for short GPU) and various control chip. In embodiments of the present invention, CPU can be single arithmetic core, it is also possible to include multioperation core.
It is first-class that input equipment 200 can include the touch screen of standard, keyboard, shooting, it is also possible to includes line interface, wave point etc.
Output device 300 can include display screen, speaker etc., it is also possible to includes line interface, wave point etc.
Memorizer 500 can be used for storing software program and module, processor 100, input equipment 200 and output device 300 are by calling the software program and module that are stored in memorizer 500, thus performing the various functions application of terminal and realizing data process. Memorizer 500 mainly includes program storage area and data storage area, and wherein, program storage area can store the application program etc. needed for operating system, at least one function; Data storage area can store the data etc. that the use according to terminal creates. In embodiments of the present invention, operating system can be android system, iOS system or Windows operating system etc.
Concrete, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, described screen pixels also includes white sub-pixels point, described processor 100 calls the application program being stored in described memorizer 500, is used for performing following steps:
Detect the current attenuation state of blue subpixels point in described screen pixels, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition;
If meeting described predesigned compensation condition, then light the white sub-pixels point in described screen pixels, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
Optionally, described processor 100 is additionally operable to perform following steps before calling described in the application program execution being stored in described memorizer 500:
Optionally, described processor 100 calls the application program being stored in described memorizer 500 and performs the current attenuation state of the blue subpixels point in the described screen pixels of described detection, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition, specifically perform following steps:
Add up the use duration of blue subpixels point in described screen pixels;
Whether the described use duration of detection statistics exceedes default very first time threshold value;
If exceeding described very first time threshold value, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Further alternative, described processor 100 calls the application program being stored in described memorizer 500 and performs the use duration of the blue subpixels point in the described screen pixels of described statistics, specifically performs following steps:
Obtaining the blue subpixels point state in which in described screen pixels, described state includes luminance and non-light emitting state;
When described blue subpixels point state in which is non-light emitting state, stop timing;
When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point.
Optionally, described processor 100 calls the application program being stored in described memorizer 500 and performs the current attenuation state of the blue subpixels point in the described screen pixels of described detection, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition, specifically perform following steps:
Add up the bright screen duration of described display screen;
Whether the described bright screen duration of detection statistics exceedes the second default time threshold;
If exceeding described second time threshold, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
Optionally, described processor 100 calls the application program being stored in described memorizer 500, is additionally operable to perform following steps:
Preset grey decision-making compensates table, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
Described processor 100 calls the white sub-pixels point lighting in described screen pixels described in the application program execution being stored in described memorizer 500, specifically performs following steps:
The compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point is found out from described grey decision-making compensation table;
Call the point of the white sub-pixels in described screen pixels and export the described compensation grey decision-making found out.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, certain embodiment there is no the part described in detail, it is possible to referring to the associated description of other embodiments.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method, it is possible to realize by another way. Such as, device embodiment described above is merely schematic, such as, the division of described unit, being only a kind of logic function to divide, actual can have other dividing mode when realizing, for instance multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform. Another point, shown or discussed coupling each other or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, device or unit, it is possible to be electrical, machinery or other form.
Described this as the unit that separating component illustrates can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE. Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit. Above-mentioned integrated unit both can adopt the form of hardware to realize, it would however also be possible to employ hardware adds the form of SFU software functional unit and realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, it is possible to be stored in a computer read/write memory medium. Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform the part steps of method described in each embodiment of the present invention. And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (Read-OnlyMemory, ROM), the various media that can store program code such as random access memory (RandomAccessMemory, RAM), magnetic disc or CD.
Those skilled in the art are it can be understood that arrive, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional module, in practical application, as desired above-mentioned functions distribution can be completed by different functional modules, it is divided into different functional modules, to complete all or part of function described above by the internal structure of device. The specific works process of the device of foregoing description, it is possible to reference to the corresponding process in preceding method embodiment, do not repeat them here.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit; Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a pixel compensation method, it is applied in terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, it is characterized in that, described screen pixels also includes white sub-pixels point, and described method includes:
Detect the current attenuation state of blue subpixels point in described screen pixels, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition;
If meeting described predesigned compensation condition, then light the white sub-pixels point in described screen pixels, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
2. method according to claim 1, it is characterised in that the current attenuation state of the blue subpixels point in the described screen pixels of described detection, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition, including:
Add up the use duration of blue subpixels point in described screen pixels;
Whether the described use duration of detection statistics exceedes default very first time threshold value;
If exceeding described very first time threshold value, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
3. method according to claim 2, it is characterised in that the use duration of the blue subpixels point in the described screen pixels of described statistics, including:
Obtaining the blue subpixels point state in which in described screen pixels, described state includes luminance and non-light emitting state;
When described blue subpixels point state in which is non-light emitting state, stop timing;
When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point.
4. method according to claim 1, it is characterised in that the current attenuation state of the blue subpixels point in the described screen pixels of described detection, and judge whether the current attenuation state of described blue subpixels point meets predesigned compensation condition, including:
Add up the bright screen duration of described display screen;
Whether the described bright screen duration of detection statistics exceedes the second default time threshold;
If exceeding described second time threshold, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
5. method according to claim 1, it is characterised in that described method also includes:
Preset grey decision-making compensates table, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
The described white sub-pixels point lighted in described screen pixels, including:
The compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point is found out from described grey decision-making compensation table;
Call the point of the white sub-pixels in described screen pixels and export the described compensation grey decision-making found out.
6. a pixel compensation device, it is arranged in terminal, the display screen of described terminal is made up of at least one screen pixels, each screen pixels includes red sub-pixel point, green sub-pixels point and blue subpixels point, it is characterized in that, described screen pixels also includes white sub-pixels point, and described device includes:
Detection module, for detecting the current attenuation state of the blue subpixels point in described screen pixels, and judges whether the current attenuation state of described blue subpixels point meets predesigned compensation condition;
Compensating module, for when the current attenuation state that the testing result of described detection module is described blue subpixels point meets described predesigned compensation condition, light the white sub-pixels point in described screen pixels, the luminescence of described blue subpixels point to be compensated by described white sub-pixels point.
7. device according to claim 6, it is characterised in that described detection module includes:
First statistic unit, for adding up the use duration of the blue subpixels point in described screen pixels;
First detection unit, whether the described use duration for detecting described first statistic unit statistics exceedes default very first time threshold value;
First determines unit, for when described first detection unit detects that described use duration exceedes described very first time threshold value, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
8. method according to claim 7, it is characterised in that described first statistic unit specifically for:
Obtaining the blue subpixels point state in which in described screen pixels, described state includes luminance and non-light emitting state;
When described blue subpixels point state in which is non-light emitting state, stop timing;
When described blue subpixels point state in which is luminance, add up the luminous duration of described blue subpixels point, and using the described luminous duration use duration as described blue subpixels point.
9. device according to claim 6, it is characterised in that described detection module includes:
Second statistic unit, for adding up the bright screen duration of described display screen;
Second detection unit, whether the described bright screen duration for detecting described second statistic unit statistics exceedes the second default time threshold;
Second determines unit, for when described second detection unit detects that described bright screen duration exceedes described second time threshold, it is determined that the current attenuation state of described blue subpixels point meets predesigned compensation condition.
10. device according to claim 6, it is characterised in that described device also includes:
Preset module, compensates table for preset grey decision-making, and described grey decision-making compensation table includes the compensation grey decision-making of the differential declines state correspondence respectively of described blue subpixels point;
Described compensating module includes:
Search unit, for finding out the compensation grey decision-making corresponding with the current attenuation state of described blue subpixels point from described grey decision-making compensation table;
Pixel call unit, exports, for calling the white sub-pixels point in described screen pixels, the described compensation grey decision-making found out.
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