CN107248392B - A kind of display driving method and electronic equipment - Google Patents
A kind of display driving method and electronic equipment Download PDFInfo
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- CN107248392B CN107248392B CN201710516318.9A CN201710516318A CN107248392B CN 107248392 B CN107248392 B CN 107248392B CN 201710516318 A CN201710516318 A CN 201710516318A CN 107248392 B CN107248392 B CN 107248392B
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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
Abstract
The invention discloses in a kind of display driving method and electronic equipment, the display driving method includes: to obtain the image data that multiple and different moment video cards are output to the OLED display screen according to the preset period；Described image data are accumulated, and store the described image data of accumulation；The screen protection idsplay order is executed, the described image data based on accumulation generate screen protection picture；The OLED display screen is driven to show the screen protection picture；Wherein, the screen shows that picture is used to reduce the differential magnitude of the pixel unit luminous intensity decaying.It can be seen that; in technical solution of the present invention, by the specifically created screen protection picture of driving OLED display screen, to reduce the differential magnitude that pixel unit luminous intensity decays in OLED display screen; so as to reduce the image residue degree of OLED display screen, image displaying quality is improved.
Description
Technical field
The present invention relates to display actuation techniques fields, more specifically, being related to a kind of display driving method and electronics is set
It is standby.
Background technique
With being constantly progressive for science and technology, more and more electronic equipments having a display function are widely used in
In daily life and work, huge convenience is brought for daily life and work, becomes current
The indispensable important tool of people.
Electronic equipment realizes that the main component of display function is display screen.It is current when LCD display and OLED display screen
Two big mainstream display screens.OLED display screen has high color, wide viewing angle, high contrast, high response speed, frivolous and low power consumption
Many advantages, such as, it is artificially the advanced display device of the next generation after LCD, at present in high-end handsets and tablet computer
It is used widely on equal electronic equipments, is also expected to be widely applied on the electronic equipments such as notebook and TV.
Similar with LCD reality panel, OLED display screen also has the pixel unit of multiple array arrangements.In general, each
Pixel unit has red sub-pixel R, green sub-pixels G and blue subpixels B.OLED display screen can be sent out in use
Raw aging phenomenon, i.e., with the increase for using the time, luminous intensity reduces each sub-pixel in which will be slow, the sub- picture of different colours
The attenuation curve of element is as shown in Figure 1.
It is the curve graph of OLED display screen sub-pixel brightness decay with reference to Fig. 1, Fig. 1.In Fig. 1, horizontal axis be using the time,
The longitudinal axis is brightness, and the brightness is relative luminance, and red sub-pixel R, green sub-pixels G and blue subpixels B are when in use
Between be 0 when brightness be 100%.As shown in Figure 1, in OLED display screen, red sub-pixel R, green sub-pixels G and blue
The rate of decay of pixel B is different, wherein the brightness decay of blue subpixels B is fastest, the brightness decay of red sub-pixel R
Speed is taken second place, and the brightness decay speed of green sub-pixels G is most slow.In OLED display screen, when brightness decay of sub-pixel, can not
Inverse process.
Since the sub-pixel of different colours in OLED display screen has different brightness decay speed, and the brightness of sub-pixel
It is irreversible when decaying, after will lead to the fixed image of OLED display screen display for a long time, in other display pictures of switching display,
There is the problem of image residue, as shown in Figure 2.
With reference to Fig. 2, Fig. 2 is that existing OLED display screen the schematic illustration of Image sticking problems occurs.As shown in Fig. 2, working as
OLED display screen is for a long time in display Fig. 2 after black and white lattice picture shown in left figure, then when being switched to the picture of full grayscale, it may appear that such as
Display shown in right figure is as a result, make black and white grid picture have image residue, such as left figure in full grayscale display surface face in Fig. 2
Middle region A A ' in right figure causes in region image residue, and B B ' in right figure in region causes in region image residue, image in left figure
Image displaying quality.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of display driving method and electronic equipments, pass through driving
The specifically created screen protection picture of OLED display screen, to reduce the difference that pixel unit luminous intensity decays in OLED display screen
Amplitude improves image displaying quality so as to reduce the image residue degree of OLED display screen.
To achieve the goals above, the invention provides the following technical scheme:
A kind of display driving method, for the electronic equipment with OLED display screen, the OLED display screen has multiple
The pixel unit of array arrangement, the display driving method include:
According to the preset period, the image data that multiple and different moment video cards are output to the OLED display screen is obtained；
Described image data are accumulated, and store the described image data of accumulation；
Obtain screen protection idsplay order；
The screen protection idsplay order is executed, the described image data based on accumulation generate screen protection picture；
The OLED display screen is driven to show the screen protection picture；
Wherein, the screen shows that picture is used to reduce the differential magnitude of the pixel unit luminous intensity decaying.
Preferably, in above-mentioned display driving method, the acquisition screen protection idsplay order includes:
The control instruction for obtaining user's input generates the screen protection idsplay order according to the control instruction.
Preferably, in above-mentioned display driving method, the acquisition screen protection idsplay order includes:
Judge whether the electronic equipment meets waiting condition；
If so, generating the screen protection idsplay order.
Preferably, in above-mentioned display driving method, the described image data based on accumulation generate screen protection figure
Piece includes:
The described image data of normalization storage accumulation, obtain normalized image；
Color overturning is carried out to the normalized image, obtains the screen protection picture.
Preferably, in above-mentioned display driving method, the pixel unit has the sub-pixel of multiple and different colors；
The normalization stores the described image data accumulated
According to the described image data of storage accumulation, the average gray-scale value of the sub-pixel is obtained；
The normalized image is constituted with the average gray-scale value of the sub-pixel.
Preferably, described that color overturning is carried out to the normalized image in above-mentioned display driving method, described in acquisition
Screen protection picture includes:
When obtaining pixel unit white light display, the white light grayscale value of the sub-pixel；
The white light grayscale value is subtracted into the average gray-scale value, obtains the complementary grayscale value of the sub-pixel；
The screen protection picture is constituted with the complementary grayscale value of the sub-pixel.
The present invention also provides a kind of electronic equipment, the electronic equipment includes:
Controller；
The memory being connect with the controller；
The video card being connect with the controller；
The OLED display screen being connect with the video card；The OLED display screen has the pixel unit of multiple array arrangements；
The controller was used for according to the preset period, and obtaining video card described in multiple and different moment, to be output to the OLED aobvious
The image data of display screen accumulates described image data, and by the described image data of memory storage accumulation, is obtaining
When screen protection idsplay order, the screen protection idsplay order is executed, the described image data based on accumulation generate screen protection picture, lead to
It crosses OLED display screen described in the video driver and shows the screen protection picture；
Wherein, the screen shows that picture is used to reduce the differential magnitude of the pixel unit luminous intensity decaying.
Preferably, in above-mentioned electronic equipment, the electronic equipment further include: input equipment, user pass through described defeated
Enter the instruction of equipment input control；
The controller is also used to obtain the control instruction of user's input, generates the screen protection according to the control instruction
Idsplay order.
Preferably, in above-mentioned electronic equipment, it is standby that the controller is also used to judge whether the electronic equipment meets
Condition, if so, generating the screen protection idsplay order.
Preferably, in above-mentioned electronic equipment, when executing the screen protection idsplay order, the controller is deposited for normalizing
The described image data of accumulation are stored up, normalized image is obtained, color overturning is carried out to the normalized image, obtains the screen
Protect picture.
Preferably, in above-mentioned electronic equipment, when normalization stores the described image data of accumulation, the controller is used for
According to the described image data of storage accumulation, the average gray-scale value of the sub-pixel is obtained, with the described average of the sub-pixel
Grayscale value constitutes the normalized image.
Preferably, in above-mentioned electronic equipment, when carrying out color overturning to the normalized image, the controller is used for
When obtaining pixel unit white light display, the white light grayscale value of the sub-pixel is subtracted the white light grayscale value described flat
Equal grayscale value obtains the complementary grayscale value of the sub-pixel, is constituted the screen with the complementary grayscale value of the sub-pixel
Protect picture.
As can be seen from the above description, in the display driving method and electronic equipment that technical solution of the present invention provides, according to
The preset period obtains the image data that multiple and different moment video cards are output to the OLED display screen；Accumulate described image number
According to, and store the described image data of accumulation；The screen protection idsplay order is executed, the described image data based on accumulation generate screen
Curtain protection picture；The OLED display screen is driven to show the screen protection picture；Wherein, the screen shows picture for subtracting
The differential magnitude of the small pixel unit luminous intensity decaying.As it can be seen that in technical solution of the present invention, by driving OLED display screen
Specifically created screen protection picture, to reduce the differential magnitude that pixel unit luminous intensity decays in OLED display screen, thus
The image residue degree of OLED display screen can be reduced, image displaying quality is improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the curve graph of OLED display screen sub-pixel brightness decay；
Fig. 2 is that existing OLED display screen the schematic illustration of Image sticking problems occurs；
Fig. 3 is a kind of flow diagram of display driving method provided in an embodiment of the present invention；
Fig. 4 is a kind of flow diagram for obtaining screen protection idsplay order method provided in an embodiment of the present invention；
Fig. 5 is that a kind of described image data based on accumulation provided in an embodiment of the present invention generate screen protection picture approach
Flow diagram；
Fig. 6 is a kind of process signal of the described image data method of normalization storage accumulation provided in an embodiment of the present invention
Figure；
Fig. 7 is that one kind provided in an embodiment of the present invention carries out color overturning to the normalized image, obtains the screen
Protect the flow diagram of picture approach；
Fig. 8 is the structural schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
With reference to Fig. 3, Fig. 3 is a kind of flow diagram of display driving method provided in an embodiment of the present invention, which drives
Dynamic method is used for the electronic equipment with OLED display screen, and the OLED display screen has the pixel unit of multiple array arrangements,
The display driving method includes:
Step S11: according to the preset period, the image that multiple and different moment video cards are output to the OLED display screen is obtained
Data.
During OLED display screen performs image display, video card, which is shown according to preset display timing for OLED, provides figure
As data.According to acquired image data, each pixel unit can be obtained respectively before executing screen protection idsplay order
Show the sampled result of data.The period is smaller, then samples more accurate, and the precision of brightness regulation is higher.
Every the time interval in a period, acquires video card and export to a frame picture number of the OLED display screen
According to.It can be greater than 1s according to the specific time range for reconciling the period described in accuracy Design, such as period, be less than 10min.
As the period can be equal to 1min.When being equal to 1min in the period, exported every 1min acquisition video card aobvious to the OLED
One frame image data of display screen.
Step S12: accumulation described image data, and store the described image data of accumulation.
Step S13: screen protection idsplay order is obtained.
Step S14: executing the screen protection idsplay order, and the described image data based on accumulation generate screen protection picture.
Step S15: the OLED display screen is driven to show the screen protection picture.
Screen protection program is added in the screen protection picture of generation, when the system of electronic equipment enters screen protection
When state, the OLED display screen is driven to show the screen protection picture.
Wherein, the screen shows that picture is used to reduce the difference width of the luminous sub-pixel luminence decaying of the pixel unit
Degree.The screen protection picture can make the difference of the brightness decay degree of different subpixel in the OLED display screen contract
It is small.Specifically, the screen protection picture can increase the brightness decay degree of the lesser sub-pixel of brightness decay degree, so that
The brightness of the sub-pixel big with brightness decay degree reach unanimity, to avoid due to sub-pixel luminence decaying it is uneven caused by
Image sticking problems.
In above-mentioned steps S13, in a kind of embodiment, the acquisition screen protection idsplay order includes: that obtain user defeated
The control instruction entered generates the screen protection idsplay order according to the control instruction.At this point, user can directly pass through input
Equipment is instructed to the electronic equipment input control, and electronic equipment generates the screen protection idsplay order according to the control instruction.
In above-mentioned steps S13, described in another embodiment obtain screen protection idsplay order method as shown in figure 4,
Fig. 4 is a kind of flow diagram for obtaining screen protection idsplay order method provided in an embodiment of the present invention, which comprises
Step S21: judge whether the electronic equipment meets waiting condition.
Step S22: if so, generating the screen protection idsplay order.
If it is not, then return step S21, continues above-mentioned deterministic process.
In method shown in Fig. 4, the implementation of above-mentioned deterministic process includes: can be by electronic equipment onboard clock
Module, when whether meeting preset threshold value by the duration that clock module detects the display picture of one frame of OLED display screen
Between, if it is meet the waiting condition, and then generate the screen protection idsplay order.
In above-mentioned steps S12, the described image data based on accumulation generate method such as Fig. 5 of screen protection picture
Shown, Fig. 5 is that a kind of described image data based on accumulation provided in an embodiment of the present invention generate screen protection picture approach
Flow diagram, which comprises
Step S31: the described image data of normalization storage accumulation obtain normalized image.
Step S32: color overturning is carried out to the normalized image, obtains the screen protection picture.
The pixel unit has the sub-pixel of multiple and different colors.As each pixel unit has red sub-pixel R, green
Sub-pixels G and blue subpixels B.In other embodiments, each pixel unit can have red sub-pixel R, green
Two in sub-pixel G and blue subpixels B, by way of pixel rendering, realize colored display, i.e. a pixel unit
A sub-pixel being multiplexed in an adjacent pixel unit realizes that RGB color is shown.
In above-mentioned steps S31, the method for the described image data of the normalization storage accumulation is as shown in fig. 6, Fig. 6 is
A kind of flow diagram of the described image data method of normalization storage accumulation provided in an embodiment of the present invention, this method packet
It includes:
Step S41: according to the described image data of storage accumulation, the average gray-scale value of the sub-pixel is obtained.
Step S42: the normalized image is constituted with the average gray-scale value of the sub-pixel.
It is described that color overturning is carried out to the normalized image in above-mentioned steps S32 based on method shown in Fig. 6, it obtains
The method of the screen protection picture as shown in fig. 7, Fig. 7 be it is provided in an embodiment of the present invention it is a kind of to the normalized image into
The overturning of row color, obtains the flow diagram of the screen protection picture approach, this method comprises:
Step S51: when obtaining pixel unit white light display, the white light grayscale value of the sub-pixel.
Step S52: the white light grayscale value is subtracted into the average gray-scale value, obtains the complementary grayscale of the sub-pixel
Value.
Step S53: the screen protection picture is constituted with the complementary grayscale value of the sub-pixel.
It is assumed that any pixel unit P1 in OLED display screen has red sub-pixel R1, green sub-pixels G1 and blue
Sub-pixel B1.
It is 1min in the sampling period, executes screen protection idsplay order when showing 3min.There are three samplings for image data tool at this time
Value.
If at first minute, in the image data of acquisition, the grayscale coordinate (R1, G1, B1) of the first pixel unit P1 is
(120,60,0)。
At second minute, in the image data of acquisition, the grayscale coordinate (R1, G1, B1) of the first pixel unit P1 be (127,
63,0)。
When third minute, in the image data of acquisition, the grayscale coordinate (R1, G1, B1) of the first pixel unit P1 be (134,
66,0)。
First minute, second minute and three moment of third minute, the son of three different colours in pixel unit P1
The display driving data of pixel is different.When then accumulating the image data three times of acquisition, the accumulation data of the first pixel unit P1 are
(381,189,0)。
When described image data based on accumulation generate screen protection picture, the described image number of normalization storage accumulation
According to obtaining normalized image is to obtain the average gray-scale value of each sub-pixel, after obtaining the normalization of the first pixel unit P1
Grayscale coordinate (127,63,0).Normalized image data based on all pixels unit, can obtain normalized image.
When carrying out color overturning to normalized image, white light grayscale coordinate (255,255,255) and each pixel unit
Grayscale coordinate (127,63,0) after normalization makes the difference, and obtains it and overturns color grayscale coordinate (128,192,255), with all pixels list
The image information process screen protection picture of the overturning color grayscale coordinate pair one of member.
Using display driving method described in the embodiment of the present invention, enable to OLED display screen after long-time is shown,
The difference degree of the brightness decay of different colours sub-pixel is reduced, is reduced due to red sub-pixel R, green sub-pixels G and indigo plant
The degree of Image sticking problems caused by the brightness decay degree of sub-pixels B is different.
Based on above-mentioned display driving method, another embodiment of the present invention additionally provides a kind of electronic equipment, and the electronics is set
It is standby as shown in figure 8, Fig. 8 be a kind of electronic equipment provided in an embodiment of the present invention structural schematic diagram, the electronic equipment include: control
Device 11 processed；The memory 12 being connect with the controller 11；The video card 13 being connect with the controller 11；And with the video card
The OLED display screen 14 of 13 connections.Wherein, the OLED display screen 14 has the pixel unit of multiple array arrangements.
The controller 11 can execute display driving method described in above-described embodiment.Specifically, the controller 11 is used
According to the preset period, obtaining the image data that video card 13 described in multiple and different moment is output to the OLED display screen 14,
Described image data are accumulated, and store the described image data of accumulation by the memory 12, are obtaining screen protection idsplay order
When, the screen protection idsplay order is executed, the described image data based on accumulation generate screen protection picture, pass through the video card 13
The OLED display screen 14 is driven to show the screen protection picture.Wherein, the screen shows picture for reducing the picture
The differential magnitude of plain unit luminous intensity decaying.
As shown in figure 8, the electronic equipment further include: input equipment 15, user are inputted by the input equipment 15
Control instruction.The controller 11 is also used to obtain the control instruction of user's input, according to control instruction generation
Screen protection idsplay order.Alternatively, the controller 11 is also used to judge whether the electronic equipment meets waiting condition, if so,
Generate the screen protection idsplay order.
Optionally, when executing the screen protection idsplay order, the controller 11 is used to normalize the figure of storage accumulation
As data, normalized image is obtained, color overturning is carried out to the normalized image, obtains the screen protection picture.Normalizing
When changing the described image data of storage accumulation, the controller 11 is used for the described image data according to storage accumulation, obtains institute
The average gray-scale value of sub-pixel is stated, the normalized image is constituted with the average gray-scale value of the sub-pixel.Return to described
When one change image carries out color overturning, when the controller 11 is for obtaining pixel unit white light display, the sub-pixel
White light grayscale value, the white light grayscale value is subtracted into the average gray-scale value, obtains the complementary grayscale value of the sub-pixel, with
The complementary grayscale value of the sub-pixel constitutes the screen protection picture.
Electronic equipment described in the embodiment of the present invention enables to OLED display screen after long-time is shown, reduces different face
The difference degree of the brightness decay of sub-pixels is reduced due to red sub-pixel R, green sub-pixels G and blue subpixels B
The degree of Image sticking problems caused by brightness decay degree is different.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For electronics disclosed in embodiment
For equipment, since it is corresponding with display driving method disclosed in embodiment, so being described relatively simple, related place ginseng
See display driving relevant portion explanation.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of display driving method, for the electronic equipment with OLED display screen, the OLED display screen has multiple battle arrays
Arrange the pixel unit of arrangement, which is characterized in that the display driving method includes:
According to the preset period, the image data that multiple and different moment video cards are output to the OLED display screen is obtained；
Described image data are accumulated, and store the described image data of accumulation；
Obtain screen protection idsplay order；
The screen protection idsplay order is executed, the described image data based on accumulation generate screen protection picture；
The OLED display screen is driven to show the screen protection picture；
Wherein, the screen protection picture is used to reduce the differential magnitude of the pixel unit luminous intensity decaying, the screen
Protection picture is used to increase the brightness decay degree of the lesser sub-pixel of brightness decay degree, to be allowed to big with brightness decay degree
The brightness of sub-pixel reach unanimity.
2. display driving method according to claim 1, which is characterized in that the acquisition screen protection idsplay order includes:
Judge whether the electronic equipment meets waiting condition；
If so, generating the screen protection idsplay order.
3. display driving method according to claim 1, which is characterized in that the described image data based on accumulation are raw
Include: at screen protection picture
The described image data of normalization storage accumulation, obtain normalized image；
Color overturning is carried out to the normalized image, obtains the screen protection picture.
4. display driving method according to claim 3, which is characterized in that the pixel unit has multiple and different colors
Sub-pixel；
The normalization stores the described image data accumulated
According to the described image data of storage accumulation, the average gray-scale value of the sub-pixel is obtained；
The normalized image is constituted with the average gray-scale value of the sub-pixel.
5. display driving method according to claim 4, which is characterized in that described to carry out color to the normalized image
Overturning, obtaining the screen protection picture includes:
When obtaining pixel unit white light display, the white light grayscale value of the sub-pixel；
The white light grayscale value is subtracted into the average gray-scale value, obtains the complementary grayscale value of the sub-pixel；
The screen protection picture is constituted with the complementary grayscale value of the sub-pixel.
6. a kind of electronic equipment, which is characterized in that the electronic equipment includes:
Controller；
The memory being connect with the controller；
The video card being connect with the controller；
The OLED display screen being connect with the video card；The OLED display screen has the pixel unit of multiple array arrangements；
The controller is used to obtain video card described in multiple and different moment according to the preset period and be output to the OLED display screen
Image data, accumulate described image data, and by the memory storage accumulation described image data, acquisition screen protection
When idsplay order, the screen protection idsplay order is executed, the described image data based on accumulation generate screen protection picture, pass through institute
It states OLED display screen described in video driver and shows the screen protection picture；
Wherein, the screen protection picture is used to reduce the differential magnitude of the pixel unit luminous intensity decaying, the screen
Protection picture can increase the brightness decay degree of the lesser sub-pixel of brightness decay degree, to be allowed to big with brightness decay degree
The brightness of sub-pixel reach unanimity.
7. electronic equipment according to claim 6, which is characterized in that the controller is also used to judge the electronic equipment
Whether waiting condition is met, if so, generating the screen protection idsplay order.
8. electronic equipment according to claim 6, which is characterized in that when executing the screen protection idsplay order, the control
Device is used to normalize the described image data of storage accumulation, obtains normalized image, carries out color to the normalized image and turns over
Turn, obtains the screen protection picture.
9. electronic equipment according to claim 8, which is characterized in that when the described image data of normalization storage accumulation,
The controller is used to the average gray-scale value of the sub-pixel is obtained, with the son according to the described image data of storage accumulation
The average gray-scale value of pixel constitutes the normalized image.
10. electronic equipment according to claim 9, which is characterized in that when carrying out color overturning to the normalized image,
When the controller is for obtaining pixel unit white light display, the white light grayscale value of the sub-pixel, by the white light ash
Rank value subtracts the average gray-scale value, obtains the complementary grayscale value of the sub-pixel, with the complementary grayscale of the sub-pixel
Value constitutes the screen protection picture.
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| US11922006B2 (en) | 2018-06-03 | 2024-03-05 | Apple Inc. | Media control for screensavers on an electronic device |
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| CN112825237B (en) | 2019-11-20 | 2022-05-24 | 联咏科技股份有限公司 | Image processing apparatus and method of operating the same |
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