CN108022524A - Dot structure, display screen and the method for adjusting brightness of display screen uniformity - Google Patents
Dot structure, display screen and the method for adjusting brightness of display screen uniformity Download PDFInfo
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- CN108022524A CN108022524A CN201610932183.XA CN201610932183A CN108022524A CN 108022524 A CN108022524 A CN 108022524A CN 201610932183 A CN201610932183 A CN 201610932183A CN 108022524 A CN108022524 A CN 108022524A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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]
-
- 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]
Abstract
A kind of dot structure, display screen and the method for adjusting brightness of display screen uniformity, the dot structure include:White light backboard, for sending white light, the face that the white light backboard is used to send white light is front, and the white light backboard front has multiple white light sub-pixel layers being set up in parallel, and the white light sub-pixel layer is used to provide white light sub-pixel;Optical sensor on the white light backboard front, the optical sensor are used for the brightness for obtaining each white light sub-pixel;The optical filter being oppositely arranged with the white light backboard front, the optical filter includes multiple sub-pixel layers being set up in parallel, and each sub-pixel layer is opposite with the position of each white light sub-pixel layer, and the color of multiple sub-pixel layers is different.Present invention improves brightness of display screen uniformity.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of dot structure, display screen and adjustment brightness of display screen
The method of uniformity.
Background technology
Existing OLED (Organic Light-Emitting Diode) display screens or micro LED displays are being made
During work, it is understood that there may be the more serious non-uniform problem of luminous point luminosity, it is therefore desirable to adjusted to display screen
The processing of whole display brightness inequality.Uniformity for the brightness for adjusting the display screen, usually there is following three kinds of modes:Voltage
Compensation circuit type, current compensation circuit type and device optical formula supplement type.
Specifically, voltage compensating circuit type uses 7 metal-oxide-semiconductors by positive and negative pressure drop to realize the compensation of voltage, to ensure
Display screen is in the state of brightness uniformity;However, for voltage compensating circuit type, in addition to voltage, the manufacturing process of metal-oxide-semiconductor
There is otherness so that even if voltage is consistent but to flow through the electric current of each metal-oxide-semiconductor node still variant, and display screen is shown
Brightness it is related to electric current, therefore the brightness that display screen is shown is still uneven.Current compensation current mode to electric current by taking product
Divide the timesharing of metering, obtain the current conditions of each node, and pass through the control that control circuit carries out electric current supply;For electricity
Since display screen shines realized by luminous material layer for flowing compensation circuit type, the luminescent material of different node evaporations
Layer has small variations, this will cause to show uneven.Optical profile type compensation is shot by high accuracy CCD, obtains each section
Point brightness simultaneously forms image array, the image array and then output image is first multiplied by when image exports, so as to obtain brightness one
The picture of cause.
Since display screen usually has certain service life, over time, each device is difficult to keep same in display screen
When decay, therefore display screen show uniformity is adjusted even in a certain stage, over time display screen
Display problem of non-uniform occurs again.Therefore, it is urgent to provide a kind of dynamic luminance uniformity adjusting method, obtain in real time aobvious
Display screen shows situation to compensate.
The content of the invention
The present invention solves the problems, such as to be to provide a kind of dot structure, display screen and the side for adjusting brightness of display screen uniformity
Method, the brightness case of dynamic monitoring display screen, to carry out luminance compensation in time, so as to improve the brightness uniformity of display screen
Property.
To solve the above problems, the present invention provides a kind of dot structure, including:White light backboard, for sending white light, institute
It is front to state the face that white light backboard is used to send white light, and the white light backboard front has multiple white light pictures being set up in parallel
Plain layer, the white light sub-pixel layer are used to provide white light sub-pixel;Optical sensor on the white light backboard front, institute
State the brightness that optical sensor is used to obtain each white light sub-pixel;The optical filter being oppositely arranged with the white light backboard front, institute
Stating optical filter includes multiple sub-pixel layers being set up in parallel, and the position phase of each sub-pixel layer and each white light sub-pixel layer
It is right, and the color of multiple sub-pixel layers is different.
Optionally, the optical filter is three-colour filter or four colo(u)r filters.
Optionally, the dot structure is arranged on display screen, is had on the display screen in the multiple of array arrangement
Dot structure;The optical filter is RGB filter.
Optionally, the white light backboard front has three white light sub-pixel layers.
Optionally, the multiple sub-pixel layer includes red sub-pixel layer, blue subpixels layer and green sub-pixels layer;
The red sub-pixel layer, blue subpixels layer and green sub-pixels layer are in strip and along going to being set up in parallel.
Optionally, the area of the red sub-pixel layer, blue subpixels layer and green sub-pixels layer is equal.
Optionally, the dot structure is arranged on display screen, is had on the display screen in the multiple of array arrangement
Dot structure;The optical filter is CMYK optical filters.
Optionally, the white light backboard front has four white light sub-pixel layers.
Optionally, the multiple sub-pixel layer include cyan sub-pixel layer, pinkish red sub-pixels layer, yellow sub-pixel layer with
And black sub-pixels layer;The cyan sub-pixel layer, pinkish red sub-pixels layer, yellow sub-pixel layer and black sub-pixels layer are equal
In strip and along going to being set up in parallel.
Optionally, the cyan sub-pixel layer, pinkish red sub-pixels layer, yellow sub-pixel layer and black sub-pixels layer
Area is equal.
Optionally, the optical sensor is located at the side of the multiple white light sub-pixel layer.
Optionally, the optical sensor is between two adjacent white light sub-pixel layers.
Optionally, the optical filter includes transparent substrates and the black matrix pattern layer on the transparent substrates,
The black matrix pattern layer includes multiple black matrix being spaced apart.
Optionally, the dot structure further includes:Positioned at the positive support between the optical filter of white light backboard
Structure, and to be equal to the white light backboard positive the distance between with the optical filter for the thickness of the supporting structure.
Optionally, the material of the supporting structure is light transmissive material.
Optionally, the white light backboard is OLED white light backboards.
Optionally, the white light backboard is micro LED white light backboards.
The present invention also provides a kind of display screen, including:Some above-mentioned dot structures;Drive circuit module, the driving
Circuit module is connected with multiple white light sub-pixel layers in the dot structure respectively, for the multiple white light sub-pixel layer
Driving voltage or driving current are provided, to light white light sub-pixel;Feedback control module, the feedback control module and the light
Learn sensor and drive circuit module is connected, each white light sub-pixel luminence obtained for collecting the optical sensor, and
Judge whether each white light sub-pixel luminence meets reference brightness, when the white light sub-pixel luminence does not meet reference brightness, adjust
The driving voltage value or driving current value that the whole drive circuit module is provided to corresponding white light sub-pixel layer.
Optionally, several described dot structures are arranged in array.
Optionally, the quantity of the drive circuit module is identical with the quantity of the dot structure;Per one drive circuit mould
Block is corresponded to be connected with multiple white light sub-pixel layers of same dot structure.
Optionally, the quantity of the feedback control module is identical with the quantity of the dot structure;Each feedback control mould
Block is corresponded to be connected with the optical sensor of same dot structure.
Optionally, the drive circuit module includes multiple drive circuit units, and each drive circuit unit correspond to
One white light sub-pixel layer is connected.
Optionally, the quantity of the drive circuit unit is identical with the quantity of the white light sub-pixel layer.
Optionally, the feedback control module includes:Collector unit, is connected with the optical sensor, for collecting
State each white light sub-pixel luminence of optical sensor acquisition;The judgement comparing unit being connected with the collector unit, for judging
Whether each white light sub-pixel luminence obtained meets reference brightness;It is connected with the judgement comparing unit and drive circuit unit
Adjustment unit, for when it is described judgement comparing unit judge that the white light sub-pixel luminence does not meet reference brightness when, adjust
The driving voltage value or driving current value that the drive circuit unit is provided to corresponding white light sub-pixel layer.
The present invention also provides a kind of method for adjusting brightness of display screen uniformity, including:Foregoing display screen is provided, is utilized
The dot structure acquiring unit pixel, wherein, white light that the unit pixel provides for multiple white light sub-pixel layers
Pixel is via obtaining after the multiple sub-pixel layer;The unit pixel is lighted using the drive circuit module so that more
The white light sub-pixel that a white light sub-pixel layer provides is lit;When the unit pixel is lit, pass through the pixel
Optical sensor in structure obtains the multiple white light sub-pixel luminence;Collect each white light that the optical sensor obtains
Pixel intensity, and judge whether each white light sub-pixel luminence meets reference brightness;When the white light sub-pixel luminence does not meet ginseng
When examining brightness, driving voltage value or driving current that the drive circuit module is provided to corresponding white light sub-pixel layer are adjusted
Value.
Optionally, there are multiple unit pixels, and the multiple unit pixel is arranged in array on the display screen;Profit
The multiple unit pixel is sequentially lighted with the drive circuit module.
Optionally, the optical sensor obtains each white light sub-pixel luminence in individual unit pixel, with to described single
White light sub-pixel luminence in unit pixel is adjusted.
Optionally, when the unit pixel is lit, and passes through the optical sensor and obtain the multiple white light picture
During the brightness of element, other unit pixels adjacent with the unit pixel are non-lit up.
Optionally, the optical sensor obtains in a region each white light sub-pixel luminence in multiple unit pixels, with
White light sub-pixel luminence in the multiple unit pixel is adjusted.
Optionally, the adjustment drive circuit module is provided to corresponding white light sub-pixel layer driving voltage value or
The method of driving current value includes:When the white light sub-pixel luminence is less than reference brightness, increase the drive circuit module
The driving voltage value or driving current value provided to corresponding white light sub-pixel layer, to improve the white light sub-pixel luminence;When
When the white light sub-pixel luminence is higher than reference brightness, reduce what the drive circuit module was provided to corresponding white light sub-pixel layer
Driving voltage value or driving current value, to reduce the white light sub-pixel luminence.
Compared with prior art, technical scheme has the following advantages:
In dot structure provided by the invention, due to also having optical sensor in white light backboard front, the optics passes
Sensor can directly acquire each white light sub-pixel luminence of white light backboard offer, bright when dynamic monitoring unit pixel is lit
Degree situation, to be timely adjusted to the driving voltage value or driving current value for lighting the unit pixel, so that it is right
Each white light sub-pixel carries out luminance compensation.
The present invention also provides a kind of display screen, and each white light sub-pixel luminence can be obtained due to being integrated with dot structure
Optical sensor, can dynamically be monitored bright when the unit pixel that the dot structure provides is lit by optical sensor
Degree situation;And also there is the feedback control module being connected with drive circuit module and optical sensor, root in the display screen
Brightness case when being lit according to the unit pixel of acquisition, timely adjustment drive corresponding white light sub-pixel layer to send white light
Driving voltage value or driving current value, so that effective compensating unit pixel intensity, improve the display brightness of the display screen
Uniformity, improves user experience.
In addition, compared with the scheme for the compensating unit pixel intensity that the prior art provides, The present invention reduces multiple three poles
Pipe configures, therefore can be used to saved space manufacture more unit pixels, so as to improve the pixel of display screen
Density (PPI, Pixels Per Inch).
Brief description of the drawings
Fig. 1 to Fig. 3 is the structure diagram for the dot structure that one embodiment of the invention provides;
Fig. 4 to Fig. 6 is the structure diagram for the dot structure that further embodiment of this invention provides;
Fig. 7 to Fig. 9 is the structure diagram for the dot structure that yet another embodiment of the invention provides;
Figure 10 is the structure diagram of display screen provided in an embodiment of the present invention;
Figure 11 is the structure diagram of feedback control module in display screen provided in an embodiment of the present invention;
Figure 12 is the flow diagram of the method for adjustment brightness of display screen uniformity provided in an embodiment of the present invention.
Embodiment
From background technology, it is urgent to provide a kind of dynamic luminance uniformity adjusting method, display screen is obtained in real time
Display situation is to compensate.
To solve the above problems, the present invention provides a kind of dot structure, including:White light backboard, for sending white light, institute
It is front to state the face that white light backboard is used to send white light, and the white light backboard front has multiple white light pictures being set up in parallel
Plain layer, the white light sub-pixel layer are used to provide white light sub-pixel;Optical sensor on the white light backboard front, institute
State the brightness that optical sensor is used to obtain each white light sub-pixel;The optical filter being oppositely arranged with the white light backboard front, institute
Stating optical filter includes multiple sub-pixel layers being set up in parallel, and the position phase of each sub-pixel layer and each white light sub-pixel layer
It is right, and the color of multiple sub-pixel layers is different.
Dot structure provided by the invention can not only provide unit pixel, and can also be with each white in acquiring unit pixel
The optical sensor of sub-pixels brightness is integrated in dot structure, each when being lit so as to dynamic monitoring unit pixel
White light sub-pixel luminence situation, to carry out luminance compensation in time.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 to Fig. 3 is the structure diagram for the dot structure that one embodiment of the invention provides, and Fig. 1 is implemented for the present invention one
The cross-sectional view for the dot structure that example provides, Fig. 2 are white light backboard layout structure schematic diagram in Fig. 1, and Fig. 3 is in Fig. 1
Optical filter layout structure schematic diagram.Referring to figs. 1 to Fig. 3, the dot structure includes:
White light backboard 101, for sending white light, the face that the white light backboard 101 is used to send white light is front, institute
Stating the front of white light backboard 101 has multiple white light sub-pixel layers 10 being set up in parallel, and the white light sub-pixel layer 10 is used to provide
White light sub-pixel;
Optical sensor 102 on 101 front of white light backboard, the optical sensor 102 are used to obtain each
The brightness of white light sub-pixel;
The optical filter 103 being oppositely arranged with 101 front of white light backboard, the optical filter 103 are set side by side including multiple
The sub-pixel layer put, and each sub-pixel layer is opposite with the position of each white light sub-pixel layer 10, and multiple sub-pixel layers
Color it is different.
Dot structure provided in this embodiment is described in detail below with reference to attached drawing.
The optical filter 103 is three-colour filter or four colo(u)r filters.In the present embodiment, it is with the optical filter 103
Three-colour filter, and the optical filter 103 be RGB filter exemplified by illustrate.The multiple sub-pixel layer includes red son
Pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106.It should be noted that in other embodiments, it is described
Optical filter can also be other three-colour filters.
In the present embodiment, there is three white light sub-pixel layers 10, and three white lights on 101 front of white light backboard
The position of sub-pixel layer 10 and the red sub-pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106 is one by one
It is corresponding;It is described white when providing driving voltage or driving current to the white light sub-pixel layer 10 using drive circuit module
The white light sub-pixel that sub-pixels layer 10 provides is lit to send white light, and three white light sub-pixels layer 10 is sent
White light is projected to one in the red sub-pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106 respectively
On sub-pixel layer, so as to form unit pixel.
The unit pixel includes red sub-pixel, green sub-pixels and blue subpixels.When the unit pixel quilt
When lighting, the red sub-pixel sends red light, and the green sub-pixels send green light, and the blue subpixels send indigo plant
Coloured light.Specifically, the white light that the white light sub-pixel layer 10 opposite with 104 position of red sub-pixel layer is sent is projected to institute
Red sub-pixel layer 104 is stated, via sending red light after the red sub-pixel layer 104;With 105, the blue subpixels layer
Put the white light that opposite white light sub-pixel layer 10 is sent and be projected to the blue subpixels layer 105, via the sub- picture of blueness
Blue light is sent after plain layer 105;The white light that the white light sub-pixel layer 10 opposite with 106 position of green sub-pixels layer is sent
The green sub-pixels layer 106 is projected to, via sending green light after the green sub-pixels layer 106.
Optical sensor 102 on 101 front of white light backboard is used for the brightness for obtaining each white light sub-pixel.
The brightness of the white light sub-pixel opposite with 104 position of red sub-pixel layer and the red sub-pixel layer 104
The red brightness sent has correspondence, the brightness of the white light sub-pixel opposite with 105 position of blue subpixels layer
There is correspondence with the blue brightness that the blue subpixels layer 105 is sent, with the 106 position phase of green sub-pixels layer
To the green brightness that sends of brightness and the green sub-pixels layer 106 of white light sub-pixel there is correspondence.
Therefore, the brightness of each white light sub-pixel is obtained using the optical sensor 102, can actually be obtained via red
Red brightness that sub-pixels layer 104 is sent, the blue brightness sent via blue subpixels layer 105 and via green
The green brightness that sub-pixel layer 106 is sent.And then the brightness of each white light sub-pixel is obtained by the optical sensor 102,
The display brightness situation for the unit pixel that the dot structure provides can be obtained, dynamically to know the unit pixel
Display brightness is partially dark, partially bright or normal brightness.
In the present embodiment, the dot structure further includes:It is positive with the optical filter 103 positioned at the white light backboard 101
Between supporting structure 109 (PS, Photo Spacer), and the thickness of the supporting structure 109 is equal to the white light backboard 101
The distance between positive and described optical filter 103.The supporting structure 109 plays the support white light backboard 101 and the filter
The effect of mating plate 103;The material of the supporting structure 109 is light transmissive material.
The dot structure is arranged on display screen, has multiple pixel knots in array arrangement on the display screen
Structure;The red sub-pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106 are in strip and along capable to arranged side by side
Set.
In the present embodiment, the face of the red sub-pixel layer 104, blue subpixels layer 105 and green sub-pixels layer 106
Product is equal.
With reference to figure 3, in the present embodiment, the optical sensor 102 is located at the side of the multiple white light sub-pixel layer 10.
Specifically, between the projecting figure 107 and each sub-pixel layer that are projected on the optical sensor 102 on the optical filter 103
Position relationship illustrate:The red sub-pixel layer 104, blue subpixels layer 105, green sub-pixels layer 106 and throwing
Shadow figure 107 put in order for:On along row to direction, the red sub-pixel layer 104, blue subpixels layer 105, green
Sub-pixel layer 106 and projecting figure 107 put in order for:Red sub-pixel layer 105, green sub-pixels layer 106, blueness
Pixel layer 105 and projecting figure 107;Or be, projecting figure 107, red sub-pixel layer 104, green sub-pixels layer 106 with
And blue subpixels layer 105.
Since the projecting figure 107 is located at the side of the multiple sub-pixel layer so that each son in the optical filter 103
The arrangement mode of pixel layer can with of the prior art identical, therefore the drive circuit module accordingly used can also with it is existing
The drive circuit module of offer is identical.
In the present embodiment, the optical filter 103 includes transparent substrates 11 and the black on the transparent substrates 11
Matrix diagram pattern layer (does not indicate), and the black matrix pattern layer includes multiple black matrix 12 being spaced apart;Wherein, Mei Yizi
Pixel layer is arranged between adjacent black matrix 12.Specifically, the red sub-pixel layer 104, blue subpixels layer 105 and
Green sub-pixels layer 106 is arranged between adjacent black matrix 12.
Further embodiment of this invention also provides a kind of dot structure, and Fig. 4 to Fig. 6 is the picture that further embodiment of this invention provides
The structure diagram of plain structure, wherein, Fig. 4 is the cross-sectional view for the dot structure that further embodiment of this invention provides,
Fig. 5 is white light backboard layout structure schematic diagram in Fig. 4, and Fig. 6 is optical filter layout structure schematic diagram in Fig. 4.
With reference to figure 4 to Fig. 6, the dot structure includes:
White light backboard 201, for sending white light, the face that the white light backboard 201 is used to send white light is front, institute
Stating the front of white light backboard 201 has multiple white light sub-pixel layers 20 being set up in parallel, and the white light sub-pixel layer 20 is used to provide
White light sub-pixel;
Optical sensor 202 on 201 front of white light backboard, the optical sensor 202 are used to obtain each
The brightness of white light sub-pixel;
The optical filter 203 being oppositely arranged with 201 front of white light backboard, the optical filter 203 are set side by side including multiple
The sub-pixel layer put, and each sub-pixel layer is opposite with the position of each white light sub-pixel layer 20, and multiple sub-pixel layers
Color it is different.
The optical filter 203 is three-colour filter or four colo(u)r filters.In the present embodiment, it is with the optical filter 203
Three-colour filter and the optical filter 203 are to illustrate exemplified by RGB filter.The multiple sub-pixel layer includes red sub- picture
Plain layer 204, blue subpixels layer 205 and green sub-pixels layer 206.Wherein, the red sub-pixel layer 204, the sub- picture of blueness
Plain layer 205 and green sub-pixels layer 206 are in strip and along going to being set up in parallel.
Wherein, the area of the red sub-pixel layer 204, blue subpixels layer 205 and green sub-pixels layer 206 is homogeneous
Deng.
Unlike previous embodiment, in the present embodiment, the optical sensor 202 is located at two adjacent white light pictures
Between plain layer 20.Specifically, projecting figure 207 and each sub-pixel being projected on the optical sensor 202 on optical filter 203
Position relationship between layer illustrates:The projecting figure 207 can be located at the red sub-pixel layer 204 and the green
Between sub-pixel layer 206;Alternatively, the projecting figure 207 may be located on the green sub-pixels layer 206 and blueness
Between pixel layer 205.
The optical filter 203 includes transparent substrates 21 and the black matrix pattern layer on the transparent substrates 21
(not indicating), the black matrix pattern layer include multiple black matrix 22 being spaced apart;Wherein, the red sub-pixel layer
204th, blue subpixels layer 205 and green sub-pixels layer 206 are arranged between adjacent black matrix 22.
The dot structure further includes:Positioned at the positive support knot between the optical filter 203 of the white light backboard 201
Structure 209, and the thickness of the supporting structure 209 be equal to the white light backboard 201 it is positive between the optical filter 203 away from
From.The material of the supporting structure 209 is light transmissive material.
Yet another embodiment of the invention also provides a kind of dot structure, and Fig. 7 to Fig. 9 is the picture that yet another embodiment of the invention provides
The structure diagram of plain structure, Fig. 7 are the cross-sectional view for the dot structure that yet another embodiment of the invention provides, and Fig. 8 is
White light backboard layout structure schematic diagram in Fig. 7, Fig. 9 are optical filter layout structure schematic diagram in Fig. 8.
With reference to figure 7 to Fig. 9, the dot structure includes:
White light backboard 301, for sending white light, the face that the white light backboard 301 is used to send white light is front, institute
Stating the front of white light backboard 301 has multiple white light sub-pixel layers 30 being set up in parallel, and the white light sub-pixel layer 30 is used to provide
White light sub-pixel;
Optical sensor 302 on 301 front of white light backboard, the optical sensor 302 are used to obtain each
The brightness of white light sub-pixel;
The optical filter 303 being oppositely arranged with 301 front of white light backboard, the optical filter 303 are set side by side including multiple
The sub-pixel layer put, and each sub-pixel layer is opposite with the position of each white light sub-pixel layer 30, and the face of multiple sub-pixel layers
Color is different.
Unlike previous embodiment, in the present embodiment, the optical filter 303 is four colo(u)r filters, below will be with institute
Optical filter 303 is stated as dot structure provided in this embodiment is described in detail exemplified by CMYK optical filters.
The dot structure is arranged on the display screen, has multiple pixels in array arrangement on the display screen
Structure.Wherein, the multiple sub-pixel layer includes cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel layer
306 and black sub-pixels layer 316;Wherein, the cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel
Layer 306 and black sub-pixels layer 316 are in strip and along going to being set up in parallel.
In the present embodiment, the cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel layer 306 and
The area of black sub-pixels layer 316 is equal.
Correspondingly, the white light backboard 301 includes four white light sub-pixel layers 30, and four white lights sub-pixel layer
30 with the cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel layer 306 and black sub-pixels layer 316
Position correspond;When using drive circuit module driving voltage or driving current are provided to the white light sub-pixel layer 30
When, the dot structure is lit, and the white light sub-pixel layer 30 will provide white light sub-pixel to send white light, and described four
The white light that a white light sub-pixel layer 30 is sent is projected on the sub-pixel layer in the multiple sub-pixel layer respectively, so that
Form unit pixel.
The unit pixel includes cyan sub-pixel, pinkish red sub-pixels, yellow sub-pixel and black sub-pixels.Work as institute
When stating unit pixel and being lit, the cyan sub-pixel sends cyan light, and the magenta sub-pixels send pinkish red coloured light, described
Yellow sub-pixel sends sodium yellow, and the black sub-pixels layer sends black light.Specifically, with the cyan sub-pixel layer 304
The white light that the opposite white light sub-pixel layer 30 in position is sent is projected to the cyan sub-pixel layer 304, via cyan
Cyan light is sent after pixel layer 304;The white light sub-pixel layer 30 opposite with pinkish red 305 position of sub-pixels layer sends white
Coloured light is projected to the pinkish red sub-pixels layer 305, via sending pinkish red coloured light after the pinkish red sub-pixels layer 305;With institute
State the white light that the opposite white light sub-pixel layer 30 in 306 position of yellow sub-pixel layer is sent and be projected to the yellow sub-pixel layer
306, via sending sodium yellow after the yellow sub-pixel layer 306;White light opposite with 316 position of black sub-pixels layer
The white light that pixel layer 30 is sent is projected to the black sub-pixels layer 316, black via being sent after the black sub-pixels layer 316
Coloured light.
The optical sensor 302 is used for the brightness for obtaining each white light sub-pixel.With 304 position of cyan sub-pixel layer
The brightness of opposite white light sub-pixel has correspondence with the cyan brightness that the cyan sub-pixel layer 304 is sent;With institute
State the product that the brightness of the opposite white light sub-pixel in pinkish red 305 position of sub-pixels layer is sent with the pinkish red sub-pixels layer 305
Red brightness has correspondence;The brightness of the white light sub-pixel opposite with 306 position of yellow sub-pixel layer with it is described
The yellow brightness that yellow sub-pixel layer 306 is sent has correspondence;Opposite with 316 position of black sub-pixels layer is white
The brightness of sub-pixels has correspondence with the black light brightness that the black sub-pixels layer 316 is sent.
Therefore, the brightness of each white light sub-pixel is obtained using the optical sensor 302, can actually be obtained via institute
State the cyan brightness that cyan sub-pixel layer 304 is sent, the magenta light sent via the pinkish red sub-pixels layer 305
Degree, the yellow brightness that is sent via the yellow sub-pixel layer 306 and sent via the black sub-pixels layer 316 black
Coloured light brightness.And then the brightness of each white light sub-pixel is obtained by the optical sensor 302, the pixel knot can be obtained
The display brightness situation of structure, dynamically to know the display brightness of the dot structure.
In the present embodiment, the optical sensor 302 is located at the side of the multiple white light sub-pixel layer 30.With the light
The position relationship learned between projecting figure 307 and each sub-pixel layer of the sensor 302 on the optical filter 303 illustrates:
The projecting figure 307 can be located at the side of the cyan sub-pixel layer 304, and the projecting figure 307 and the magenta
Sub-pixels layer 305 is located at the opposite both sides of the cyan sub-pixel layer 304;Alternatively, the projecting figure 307 may be located on
The side of the black sub-pixels layer 316, and the projecting figure 307 is located at the black with the yellow sub-pixel layer 306
The opposite both sides of sub-pixel layer 316.
It should be noted that in other embodiments, the optical sensor may be located on two adjacent white light pictures
Between plain layer.
In the present embodiment, the white light backboard 301 is carried on the back for OLED (Organic Light-Emitting Diode) white light
Plate.In other embodiments, the white light backboard can also be micro LED white light backboards.
The optical filter 303 includes transparent substrates 31 and the black matrix pattern layer on the transparent substrates 31
(not indicating), the black matrix pattern layer include multiple black matrix 32 being spaced apart;Wherein, each sub-pixel layer is all provided with
Put between adjacent black matrix 32.Specifically, the cyan sub-pixel layer 304, pinkish red sub-pixels layer 305, yellow sub-pixel
Layer 306 and black sub-pixels layer 316 are arranged between adjacent black matrix 32.
The dot structure further includes:Positioned at the positive support knot between the optical filter 303 of the white light backboard 301
Structure 309, and the thickness of the supporting structure 309 be equal to the white light backboard 301 it is positive between the optical filter 303 away from
From.The material of the supporting structure 309 is light transmissive material.
Dot structure provided in an embodiment of the present invention can not only provide unit pixel, and the optics in the dot structure
Sensor can directly acquire each white light sub-pixel luminence, dynamically monitor the brightness case when unit pixel is lit,
To be timely adjusted to the driving voltage value or driving current value for lighting the unit pixel, so as to improve display screen
Brightness uniformity.
The present invention also provides a kind of display screen, including:Some foregoing dot structures;Drive circuit module, the driving
Circuit module is connected with the multiple white light sub-pixel layer respectively, for providing drive circuit to the multiple white light sub-pixel layer
Or driving current, to obtain white light sub-pixel;Feedback control module, the feedback control module and the optical sensor and
Drive circuit module is connected, each white light sub-pixel luminence obtained for collecting the optical sensor, and judges each white light
Whether pixel intensity meets reference brightness, and when the white light sub-pixel luminence does not meet reference brightness, control adjusts the drive
The driving voltage value or driving current value that dynamic circuit module is provided to corresponding white light sub-pixel layer.
Display screen provided by the invention, can dynamically monitor the brightness of the display screen, timely adjust each unit picture
The brightness of element, so as to improve brightness of display screen uniformity, improves the display effect of display screen.
Display screen provided in an embodiment of the present invention is described in detail below with reference to attached drawing.
Figure 10 is the structure diagram of display screen provided in an embodiment of the present invention.
With reference to figure 10, the display screen includes:
The dot structure 400 of some above-mentioned offers, the dot structure 400 include the optical sensor 40 and multiple
The white light sub-pixel layer 41;
Drive circuit module 401, the drive circuit module 401 respectively with multiple white lights in the dot structure 400
Sub-pixel layer 41 is connected, for providing driving voltage or driving current to the multiple white light sub-pixel layer 41, to light white light
Sub-pixel;
Feedback control module 402, the feedback control module 402 and the optical sensor 40 and drive circuit module
401 are connected, each white light sub-pixel luminence obtained for collecting the optical sensor 40, and judge each white light sub-pixel luminence
Whether reference brightness is met, when the white light sub-pixel luminence does not meet reference brightness, control adjusts the drive circuit mould
The driving voltage value or driving current value that block 401 is provided to corresponding white light sub-pixel layer 41.
In the present embodiment, using in each dot structure there are three white light sub-pixel layers 41 to be carried out specifically as example
It is bright.
Several described dot structures 400 are arranged in array.For the ease of illustration and illustrate, one is illustrate only in Figure 10
A dot structure 400.
In the present embodiment, the quantity and the quantity phase of dot structure 400 in the display screen of the drive circuit module 401
Together, and correspond to per driving circuit module 401 and be connected with multiple white light sub-pixel layers 41 of same dot structure 400.Therefore,
The drive circuit module 401 provides driving voltage or driving current to the dot structure 400, so as to light the pixel
The unit pixel that structure 400 provides so that the white light picture that multiple white light sub-pixel layers 41 in the dot structure 400 provide
Element sends white light.
Specifically, the drive circuit module 401 includes multiple drive circuit units 411, and each drive circuit unit
411 correspondences are connected with a white light sub-pixel layer 41.
In the present embodiment, the quantity of the drive circuit unit 411 is identical with the quantity of the white light sub-pixel layer 41.Tool
Body, with quantity and the white light sub-pixel in same dot structure 400 of drive circuit unit 411 in driving circuit module 401
The quantity of layer 41 is identical.
The drive circuit unit 411 is used to provide driving voltage or driving current to corresponding white light sub-pixel layer 41,
So that the white light sub-pixel that the white light sub-pixel layer 41 provides is lit so as to send white light.
In the present embodiment, the quantity of the feedback control module 402 is identical with the quantity of the dot structure 400, and often
One feedback control module 402 is corresponded to be connected with the optical sensor 40 in same dot structure 400.In addition, the feedback control
Molding block 402 is also connected with the drive circuit unit 411 accordingly, is obtained according to the optical sensor 40 being collected into each white
Sub-pixels brightness, adjust accordingly driving voltage value that the drive circuit unit 411 provides to white light sub-pixel layer 41 or
Person's driving current value, to ensure that each white light sub-pixel luminence meets reference brightness in the dot structure 400.
With reference to figure 11, Figure 11 is the structure diagram of feedback control module provided in an embodiment of the present invention, the feedback control
Molding block 402 includes:
Collector unit 412, is connected with the optical sensor 40, for collecting each white of the acquisition of optical sensor 40
Sub-pixels brightness;
The judgement comparing unit 413 being connected with the collector unit 412, for each white light sub-pixel luminence for judging to obtain
Whether reference brightness is met;
The adjustment unit 414 being connected with the judgement comparing unit 413 and drive circuit unit 411, for when described
When judging that comparing unit 413 judges that the white light sub-pixel luminence does not meet reference brightness, the drive circuit unit 411 is adjusted
The driving voltage value or driving current value provided to corresponding white light sub-pixel layer 41.
Display screen provided by the invention, the optics of each white light sub-pixel luminence can be obtained due to being integrated with dot structure
Sensor, the brightness feelings when unit pixel that the dot structure provides is lit can be dynamically monitored by optical sensor
Condition;And also there is feedback control module in the display screen, the feedback control module is passed with drive circuit module and optics
Sensor is connected, and therefore, brightness case when can be lit according to the unit pixel of acquisition, timely adjustment drives corresponding white light
Sub-pixel layer sends the driving voltage value or driving current value of white light, so that effective compensating unit pixel intensity, is improved
The display brightness uniformity of the display screen, improves user experience.
In addition, compared with the scheme for the compensating unit pixel intensity that the prior art provides, The present invention reduces multiple three poles
Pipe configures, therefore can be used to saved space manufacture more unit pixels, so as to improve the pixel of display screen
Density (PPI, Pixels Per Inch).
Correspondingly, the present invention also provides a kind of method for adjusting brightness of display screen uniformity, Figure 12 is the embodiment of the present invention
The method flow schematic diagram of the adjustment brightness of display screen uniformity of offer.
With reference to figure 12, the described method includes:
Step S1, foregoing display screen is provided;Using the dot structure acquiring unit pixel, wherein, the unit pixel
It is white light sub-pixel that multiple white light sub-pixel layers provide via being obtained after the multiple sub-pixel layer;
Step S2, the unit pixel is lighted using the drive circuit module so that multiple white light sub-pixel layers
The white light sub-pixel of offer is lit;
Step S3, when the unit pixel is lit, by described in the optical sensor acquisition in the dot structure
Multiple white light sub-pixel luminences;
Step S4, each white light sub-pixel luminence that the optical sensor obtains is collected, and judges that each white light sub-pixel is bright
Whether degree meets reference brightness;
Step S5, when the white light sub-pixel luminence does not meet reference brightness, the drive circuit module is adjusted to phase
Answer the driving voltage value or driving current value that white light sub-pixel layer provides.
Specifically, there are multiple dot structures, correspondingly, also having multiple units on the display screen on the display screen
Pixel, and the unit pixel is arranged in array.
The multiple unit pixel is sequentially lighted using the drive circuit module.When the unit pixel is lit and is led to
It is adjacent with the unit pixel when crossing the brightness of multiple white light sub-pixels in the optical sensor acquisition unit pixel
Other unit pixels are non-lit up.It is advantageous in that:Since other unit pixels adjacent with the unit pixel are non-lit up,
Therefore the accuracy rate of each white light sub-pixel luminence in the unit pixel that the optical sensor obtains is high, avoids other
Interference problem caused by unit pixel.
In the present embodiment, the driving voltage value for adjusting the drive circuit module and being provided to corresponding white light sub-pixel layer
Or the method for driving current value includes:
When the white light sub-pixel luminence is less than reference brightness, increase the drive circuit module to corresponding white light picture
The driving voltage value or driving current value that plain layer provides, to improve the white light sub-pixel luminence;When the white light sub-pixel
When brightness is higher than reference brightness, reduce driving voltage value that the drive circuit module provides to corresponding white light sub-pixel layer or
Driving current value, to reduce the white light sub-pixel luminence.When the white light sub-pixel luminence meets reference brightness, without adjusting
The driving voltage value or driving current value that the whole drive circuit module is provided to corresponding white light sub-pixel layer.
It should be noted that in the present embodiment, multiple white lights in individual unit pixel are obtained with the optical sensor
Sub-pixel luminence, by taking the white light sub-pixel luminence in the individual unit pixel is adjusted as an example, in other embodiments,
The optical sensor can also obtain the white light sub-pixel luminence in all unit pixels in a region, with to the multiple
White light sub-pixel luminence in unit pixel is adjusted.
, can dynamic monitoring unit in the technical solution of the method for adjustment brightness of display screen uniformity provided by the invention
The brightness of pixel, to be compensated in time to unit pixel brightness;And the method for the adjustment brightness of display screen uniformity is not
It can only be operated when dispatching from the factory, can equally be adjusted the operation of brightness of display screen uniformity for a user, avoid device
Part aging when causing the brightness to show uniform can not again correcting luminance uniformity the problem of.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the scope of restriction.
Claims (30)
- A kind of 1. dot structure, it is characterised in that including:White light backboard, for sending white light, the face that the white light backboard is used to send white light is front, the white light backboard Front has multiple white light sub-pixel layers being set up in parallel, and the white light sub-pixel layer is used to provide white light sub-pixel;Optical sensor on the white light backboard front, the optical sensor are used to obtain the bright of each white light sub-pixel Degree;The optical filter being oppositely arranged with the white light backboard front, the optical filter include multiple sub-pixel layers being set up in parallel, And each sub-pixel layer is opposite with the position of each white light sub-pixel layer, and the color of multiple sub-pixel layers is different.
- 2. dot structure as claimed in claim 1, it is characterised in that the optical filter filters for three-colour filter or four colors Piece.
- 3. dot structure as claimed in claim 1 or 2, it is characterised in that the dot structure is arranged on display screen, described There are multiple dot structures in array arrangement on display screen;The optical filter is RGB filter.
- 4. dot structure as claimed in claim 3, it is characterised in that the white light backboard front has three white light sub-pixels Layer.
- 5. dot structure as claimed in claim 3, it is characterised in that the multiple sub-pixel layer include red sub-pixel layer, Blue subpixels layer and green sub-pixels layer;The red sub-pixel layer, blue subpixels layer and green sub-pixels layer are equal In strip and along going to being set up in parallel.
- 6. dot structure as claimed in claim 5, it is characterised in that the red sub-pixel layer, blue subpixels layer and The area of green sub-pixels layer is equal.
- 7. dot structure as claimed in claim 1 or 2, it is characterised in that the dot structure is arranged on display screen, described There are multiple dot structures in array arrangement on display screen;The optical filter is CMYK optical filters.
- 8. dot structure as claimed in claim 7, it is characterised in that the white light backboard front has four white light sub-pixels Layer.
- 9. dot structure as claimed in claim 7, it is characterised in that the multiple sub-pixel layer include cyan sub-pixel layer, Pinkish red sub-pixels layer, yellow sub-pixel layer and black sub-pixels layer;The cyan sub-pixel layer, pinkish red sub-pixels layer, Yellow sub-pixel layer and black sub-pixels layer are in strip and along going to being set up in parallel.
- 10. dot structure as claimed in claim 9, it is characterised in that the cyan sub-pixel layer, pinkish red sub-pixels layer, The area of yellow sub-pixel layer and black sub-pixels layer is equal.
- 11. dot structure as claimed in claim 1, it is characterised in that the optical sensor is located at the multiple white light The side of pixel layer.
- 12. dot structure as claimed in claim 1, it is characterised in that the optical sensor is positioned at two adjacent white light Between pixel layer.
- 13. dot structure as claimed in claim 1, it is characterised in that the optical filter includes transparent substrates and positioned at institute The black matrix pattern layer on transparent substrates is stated, the black matrix pattern layer includes multiple black matrix being spaced apart.
- 14. dot structure as claimed in claim 1, it is characterised in that the dot structure further includes:Carried on the back positioned at the white light The positive supporting structure between the optical filter of plate, and the thickness of the supporting structure is equal to white light backboard front and institute State the distance between optical filter.
- 15. dot structure as claimed in claim 14, it is characterised in that the material of the supporting structure is light transmissive material.
- 16. dot structure as claimed in claim 1, it is characterised in that the white light backboard is OLED white light backboards.
- 17. dot structure as claimed in claim 1, it is characterised in that the white light backboard is micro LED white light backboards.
- A kind of 18. display screen, it is characterised in that including:Some such as claim 1~17 any one of them dot structures;Drive circuit module, the drive circuit module are connected with multiple white light sub-pixel layers in the dot structure respectively, For providing driving voltage or driving current to the multiple white light sub-pixel layer, to light white light sub-pixel;Feedback control module, the feedback control module is connected with the optical sensor and drive circuit module, for receiving Collect each white light sub-pixel luminence that the optical sensor obtains, and judge whether each white light sub-pixel luminence meets with reference to bright Degree, when the white light sub-pixel luminence does not meet reference brightness, adjusts the drive circuit module to corresponding white light sub-pixel The driving voltage value or driving current value that layer provides.
- 19. display screen as claimed in claim 18, it is characterised in that several described dot structures are arranged in array.
- 20. display screen as claimed in claim 18, it is characterised in that the quantity of the drive circuit module and the pixel knot The quantity of structure is identical;Correspond to per driving circuit module and be connected with multiple white light sub-pixel layers of same dot structure.
- 21. display screen as claimed in claim 18, it is characterised in that the quantity of the feedback control module and the pixel knot The quantity of structure is identical;Each feedback control module is corresponded to be connected with the optical sensor of same dot structure.
- 22. display screen as claimed in claim 18, it is characterised in that the drive circuit module includes multiple drive circuit lists Member, and each drive circuit unit is corresponded to and is connected with a white light sub-pixel layer.
- 23. display screen as claimed in claim 22, it is characterised in that the quantity of the drive circuit unit and white light The quantity of pixel layer is identical.
- 24. display screen as claimed in claim 23, it is characterised in that the feedback control module includes:Collector unit, is connected with the optical sensor, and each white light sub-pixel for collecting the optical sensor acquisition is bright Degree;Whether the judgement comparing unit being connected with the collector unit, each white light sub-pixel luminence for judging to obtain meet ginseng Examine brightness;The adjustment unit being connected with the judgement comparing unit and drive circuit unit, for sentencing when the judgement comparing unit When the white light sub-pixel luminence that breaks does not meet reference brightness, adjust the drive circuit unit and carried to corresponding white light sub-pixel layer The driving voltage value or driving current value of confession.
- A kind of 25. method for adjusting brightness of display screen uniformity, it is characterised in that including:Display screen as described in claim 18~24 is provided, using the dot structure acquiring unit pixel, wherein, the list First pixel is white light sub-pixel that multiple white light sub-pixel layers provide via being obtained after the multiple sub-pixel layer;The unit pixel is lighted using the drive circuit module so that white light that multiple white light sub-pixel layers provide Pixel is lit;When the unit pixel is lit, the multiple white light picture is obtained by the optical sensor in the dot structure Plain brightness;Each white light sub-pixel luminence that the optical sensor obtains is collected, and judges whether each white light sub-pixel luminence meets ginseng Examine brightness;When the white light sub-pixel luminence does not meet reference brightness, the drive circuit module is adjusted to corresponding white light sub-pixel The driving voltage value or driving current value that layer provides.
- 26. the method for adjustment brightness of display screen uniformity as claimed in claim 25, it is characterised in that have on the display screen There are multiple unit pixels, and the multiple unit pixel is arranged in array;Institute is sequentially lighted using the drive circuit module State multiple unit pixels.
- 27. the method for adjustment brightness of display screen uniformity as claimed in claim 26, it is characterised in that the optical sensor Each white light sub-pixel luminence in individual unit pixel is obtained, to be carried out to the white light sub-pixel luminence in the individual unit pixel Adjustment.
- 28. the method for adjustment brightness of display screen uniformity as claimed in claim 27, it is characterised in that when the unit pixel It is adjacent with the unit pixel when being lit, and the multiple white light sub-pixel luminence is obtained by the optical sensor Other unit pixels are non-lit up.
- 29. the method for adjustment brightness of display screen uniformity as claimed in claim 25, it is characterised in that the optical sensor Each white light sub-pixel luminence in multiple unit pixels in one region of acquisition, with to the white light picture in the multiple unit pixel Plain brightness is adjusted.
- 30. the method for adjustment brightness of display screen uniformity as claimed in claim 25, it is characterised in that the adjustment drive The driving voltage value or the method for driving current value that dynamic circuit module is provided to corresponding white light sub-pixel layer include:When the white light sub-pixel luminence is less than reference brightness, increase the drive circuit module to corresponding white light sub-pixel layer The driving voltage value or driving current value of offer, to improve the white light sub-pixel luminence;When the white light sub-pixel luminence is higher than reference brightness, reduce the drive circuit module to corresponding white light sub-pixel layer The driving voltage value or driving current value of offer, to reduce the white light sub-pixel luminence.
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