CN105374340B - A kind of brightness correcting method, device and display device - Google Patents
A kind of brightness correcting method, device and display device Download PDFInfo
- Publication number
- CN105374340B CN105374340B CN201510828663.7A CN201510828663A CN105374340B CN 105374340 B CN105374340 B CN 105374340B CN 201510828663 A CN201510828663 A CN 201510828663A CN 105374340 B CN105374340 B CN 105374340B
- Authority
- CN
- China
- Prior art keywords
- area
- making
- value
- grey decision
- pixel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a kind of brightness correcting method, device and display device, it is related to display technology field, to existing display device as usage time carries out gamma correction.A kind of brightness correcting method, including：Obtain the first grey decision-making of each pixel of first area and/or second area in the first picture frame；First area and second area are determined according to the first grey decision-making of first area and/or each pixel of second area, or only determine the second grey decision-making of each pixel of first area, first area and second area, or the second grey decision-making of only each pixel of first area are equal；First area and second area are updated with the second grey decision-making, or only update the first grey decision-making of each pixel of first area, to generate the second picture frame；The second picture frame is shown on a display panel；Detect the intrinsic brilliance value of first area；According to the intrinsic brilliance value and target brightness value of first area, the brightness of backlight module is adjusted.Brightness adjustment applied to display device.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of brightness correcting method, device and display device.
Background technology
Available liquid crystal display device includes display panel and backlight module, wherein, backlight module provides backlight, display surface
Plate controls the light transmission capacity of each pixel to show different GTGs to realize display.
In general, backlight module include luminous LED (Light Emitting Diode, light emitting diode), but with
The increase of usage time, LED luminous efficiency has Natural Attenuation, so as to cause display brightness to reduce, influences display effect.
The content of the invention
Embodiments of the invention provide a kind of brightness correcting method, device and display device, by detecting display panel
Brightness, change the luminosity of adjustment backlight module according to brightness, with compensation because display brightness caused by Natural Attenuation reduces
The problem of.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
On the one hand, the embodiments of the invention provide a kind of brightness correcting method, applied to display device, the display device
Including display panel and backlight module, the display panel includes first area and second area, wherein, the second area bag
Enclose the first area；The brightness correcting method includes：
Obtain the first grey decision-making of each pixel of first area described in the first picture frame and/or the second area；
The first area is determined according to the first grey decision-making of the first area and/or each pixel of the second area
With the second area, or the second grey decision-making of each pixel of the first area is only determined, wherein, the first area and institute
State second area, or the second grey decision-making of each pixel of only described first area is equal；
The first area and the second area are updated with second grey decision-making, or only update the first area
First grey decision-making of each pixel, to generate the second picture frame；
Second picture frame is shown on said display panel；
Detect the intrinsic brilliance value of the first area；
According to the intrinsic brilliance value and target brightness value of the first area, the brightness of the backlight module is adjusted.
On the other hand, the embodiments of the invention provide a kind of luminance correction device, applied to display device, the display is set
Standby to include display panel, the display panel includes first area and second area, wherein, the second area encirclement described the
One region；The luminance correction device includes：
Acquiring unit, for obtaining each pixel of first area and/or the second area described in the first picture frame
First grey decision-making；
First determining unit, for the first GTG according to the first area and/or each pixel of the second area
Value determines the first area and the second area, or only determines the second grey decision-making of each pixel of the first area, its
In, the first area and the second area, or the second grey decision-making of each pixel of only described first area are equal；
Processing unit, for updating the first area and the second area with second grey decision-making, or only update
First grey decision-making of each pixel of the first area, to generate the second picture frame；
Display unit, for showing second picture frame on said display panel；
Detection unit, for detecting the intrinsic brilliance value of the first area；
Adjustment unit, for the intrinsic brilliance value and target brightness value according to the first area, adjust the backlight mould
The brightness of group.
On the other hand, the embodiments of the invention provide a kind of display device, including any institute provided in an embodiment of the present invention
The luminance correction device stated.
Embodiments of the invention provide a kind of brightness correcting method, device and display device, in the brightness to display device
When being adjusted, the first GTG of each pixel of first area and/or second area on display panel in the first picture frame is obtained
Value, first area and second area are determined further according to the first grey decision-making of first area and/or each pixel of second area, or only
The second grey decision-making of each pixel of first area is determined, wherein, first area and second area, or only each pixel of first area
The second grey decision-making it is equal.The second picture frame is shown on a display panel and detects the intrinsic brilliance value of first area.Now,
Because the second grey decision-making and the first grey decision-making of first area and/or each pixel of second area approach, the second grey decision-making can be with
The minimum gray value being equal in the first grey decision-making of each pixel of first area and/or second area is greater than, less than or equal to the
Maximum gray value in first grey decision-making of each pixel of one region and/or second area.User will not substantially discover first
The difference of the display and the display of its peripheral region in region, normal display is not interfered with so as to the trimming process of whole brightness, is carried
High Consumer's Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the distribution schematic diagram of first area and second area on a kind of display panel provided in an embodiment of the present invention；
Fig. 2 is a kind of brightness correcting method schematic diagram provided in an embodiment of the present invention；
Fig. 3 is another brightness correcting method schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another brightness correcting method schematic diagram provided in an embodiment of the present invention；
Fig. 5 is another brightness correcting method schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of look-up table schematic diagram provided in an embodiment of the present invention；
Fig. 7 is another brightness correcting method schematic diagram provided in an embodiment of the present invention；
Fig. 8 is another brightness correcting method schematic diagram provided in an embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of luminance correction device provided in an embodiment of the present invention；
Figure 10 is a kind of schematic diagram of first determining unit provided in an embodiment of the present invention；
Figure 11 is the schematic diagram of another luminance correction device provided in an embodiment of the present invention；
Figure 12 is a kind of adjustment unit schematic diagram provided in an embodiment of the present invention；
Figure 13 is another adjustment unit schematic diagram provided in an embodiment of the present invention；
Figure 14 is another adjustment unit schematic diagram provided in an embodiment of the present invention.
Reference：
10- display panels；11- first areas；12- second areas.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In order to more easily understand technical scheme provided in an embodiment of the present invention, illustrate that existing display device is shown first
The basic skills of image.Existing display device includes display panel and central processing unit, wherein, central processing unit generation image
Frame is sent to the source electrode driver and gate drivers of display panel, and the source electrode driver and gate drivers of display panel receive
The image of the picture frame is shown after picture frame.
The embodiments of the invention provide a kind of brightness correcting method, and applied to display device, display device includes display surface
Plate and backlight module, as shown in figure 1, display panel includes first area 11 and second area 12, wherein, second area 12 surrounds
First area 11.As shown in figure 1, first area 11 is preferably the region at the close edge on display panel 10.Example, display
The resolution ratio of panel is 1024 × 768, i.e. display panel includes 1024 × 768=786432 pixel, and first area can be
Including 100 pixels.Second area 12 surrounds first area 11, and second area can include 50 each pixels.Certainly, according to display
The pixel count that size and resolution ratio of panel etc., first area and second area include can be configured, and the present invention is implemented
It is only detailed to be carried out under above-mentioned resolution ratio, exemplified by first area includes 100 pixels, second area includes 50 pixels in example
Explanation.
As shown in Fig. 2 the brightness correcting method includes：
Step 101, the first grey decision-making for obtaining each pixel of first area and/or second area in the first picture frame.
Wherein, the first picture frame can be specifically the picture frame to be shown that processor is sent to display panel.First figure
As frame includes the first grey decision-making of each pixel on display panel.Generally, the first GTG of each pixel of first area
Value is not completely equivalent.
Step 102, first area and are determined according to the first grey decision-making of first area and/or each pixel of second area
Two regions, or only determine the second grey decision-making of each pixel of first area.Wherein, first area and second area, or only first
Second grey decision-making of each pixel in region is equal.
Wherein, the second grey decision-making and the first grey decision-making of first area and/or each pixel of second area approach.Second ash
Rank value may be greater than the minimum gray value in the first grey decision-making of each pixel equal to first area and/or second area, small
In equal to the maximum gray value in the first grey decision-making of first area and/or each pixel of second area.
Specifically, step 101 can be the first grey decision-making of each pixel for only obtaining first area, then step 102 is specific
It can be the second ash of each pixel that first area and second area are determined according to the first grey decision-making of each pixel of first area
Rank is worth；Or step 102 can be specifically that each picture of first area is determined according to the first grey decision-making of each pixel of first area
Second grey decision-making of element.
Or step 101 can be the first grey decision-making of each pixel for only obtaining second area, then step 102 specifically may be used
To be the second GTG of each pixel that first area and second area are determined according to the first grey decision-making of each pixel of second area
Value；Or step 102 can be specifically that each pixel of first area is determined according to the first grey decision-making of each pixel of second area
The second grey decision-making.
Or step 101 can be the first grey decision-making of each pixel for obtaining first area and second area, then step
102 can be specifically that the first grey decision-making of each pixel according to first area and second area determines first area and second area
Each pixel the second grey decision-making；Or step 102 can be specifically according to each pixel of first area and second area
One grey decision-making determines the second grey decision-making of each pixel of first area.
Wherein, first area and second area, or the second grey decision-making of only each pixel of first area are equal, and even
Two grey decision-makings are 200, then first area and second area, or each pixel of only first area shows 200 GTGs.And general feelings
Under condition, the first grey decision-making of each pixel of first area and/or second area is not completely equivalent.
Step 103, first area and second area are updated with the second grey decision-making, or only update each pixel of first area
First grey decision-making, to generate the second picture frame.
That is the second picture frame includes the first grey decision-making of each pixel of first area and second area, and on display panel
First grey decision-making of other each pixels；Or second picture frame including first area each pixel the first grey decision-making, Yi Jixian
Show the first grey decision-making of other each pixels on panel.
Step 104, the second picture frame is shown on a display panel.
Because the second grey decision-making of each pixel of first area is equal then, first area shows identical on display panel
GTG.
Step 105, the intrinsic brilliance value for detecting first area.
As shown in figure 11, the intrinsic brilliance value of first area 11 is detected, can be the light emission side correspondence in display panel 10
The opening position of first area 11 sets optical sensor, and the brightness value of first area 11 is detected by the optical sensor.
In general optical sensor includes photosurface, and optical sensor is able to detect that the brightness letter of the light of incident photosurface
Breath, but because the photosurface of optical sensor therefore can not can not only detect display screen with the light-emitting area infinite approach of display screen
The monochrome information in region corresponding with optical sensor photosurface.And the light of other field emissions beyond the region can be to detection
The monochrome information in the region produces interference, in order to ensure the accuracy of detection, it is therefore desirable to by other regions beyond the region
It is also configured to and the region identical grey decision-making.
In the embodiment of the present invention, display screen region corresponding with optical sensor photosurface is first area.In order to accurate
The monochrome information of first area is detected, the grey decision-making of each pixel is equal to the firstth area in preferable second area in the embodiment of the present invention
The grey decision-making of each pixel in domain.
As shown in figure 1, surrounding first area 11 in second area 12, first area 11 is located at the centre bit of second area 12
Put.Therefore, it is preferable in step 102, determine first according to the first grey decision-making of first area and/or each pixel of second area
Second grey decision-making of each pixel of region and second area, step 103 are specially to update first area and the with the second grey decision-making
First grey decision-making of each pixel in two regions, to generate the second picture frame.That is the second picture frame includes first area and second
First grey decision-making of each pixel in region, and on display panel other each pixels the first grey decision-making.So, first area and
Second grey decision-making of each pixel of second area is equal, and the brightness of the first area of optical sensing means detection is more accurate.
Step 106, intrinsic brilliance value and target brightness value according to first area, adjust the brightness of backlight module.
Wherein, target brightness value is to be shown corresponding to each pixel of the backlight module under default backlight illumination in first area
The brightness value of second grey decision-making.And intrinsic brilliance value shows for each pixel of the backlight module under actual backlight illumination in first area
Show the brightness value of the second grey decision-making.
Then as shown in figure 3, step 106 specifically includes：
Step 1061, compare intrinsic brilliance value and target brightness value.
Step 1062, intrinsic brilliance value be more than target brightness value in the case of, reduce the brightness of backlight module；Or
In the case where intrinsic brilliance value is less than target brightness value, increase the brightness of backlight module.
Make the luminescent device of the backlight module after being formed specifically, default backlight illumination can be display panel and be not used
And brightness when not decaying.With the use of display device, the luminous efficiency of the luminescent device of backlight module decays, and causes backlight
The actual backlight illumination of module is less than default backlight illumination, then display device using after certain time, it is necessary to increase backlight module
Brightness.
Specifically so that the luminescent device in backlight module is LED as an example, the brightness for increasing backlight module can be increase LED
Driving current value, so as to improve LED luminous efficiency, adjust the backlight illumination of backlight module.
It should be noted that above-mentioned target brightness value can be backlight module under default backlight illumination in first area
Each pixel shows the brightness value of the second grey decision-making.Intrinsic brilliance value is backlight module under actual backlight illumination in first area
Each pixel shows the brightness value of the second grey decision-making.Now, if the GTG division of the grey decision-making of each pixel shown on display panel
Grade is 0-4096 ranks, then above-mentioned predetermined luminance value can be corresponding 4097 when the second grey decision-making is respectively 0-4096 ranks
Grey decision-making.Then intrinsic brilliance value can also be corresponding 4097 grey decision-makings when the second grey decision-making is respectively 0-4096 ranks.
Example, step 101 is specially obtain each pixel of first area and second area in the first picture frame first
Grey decision-making.Step 102 is specially to determine first area according to the first grey decision-making of first area and each pixel of second area
Second grey decision-making of each pixel is 3200.Then intrinsic brilliance value is that backlight module is each in first area under actual backlight illumination
Pixel shows the brightness value of 3200 ranks, for example, 250nit.Then target brightness value is backlight module under default backlight illumination
Each pixel in first area shows the brightness value of 3200 ranks, for example, 300nit.Then because intrinsic brilliance value is bright less than target
Angle value, then need to increase the brightness of backlight module.
Certainly, 4097 target brightness values that corresponding 0-4096 ranks determine can form a look-up table.Compare actual bright
Angle value and target brightness value can carry out lookup with the look-up table to compare, and the bright of backlight module is adjusted further according to comparison result
Degree.
The embodiments of the invention provide a kind of brightness correcting method, when the brightness to display device is adjusted, obtains
In first picture frame on display panel each pixel of first area and/or second area the first grey decision-making, further according to the firstth area
First grey decision-making of each pixel of domain and/or second area determines first area and second area, or only determines first area
Second grey decision-making of each pixel, wherein, first area and second area, or the second grey decision-making of only each pixel of first area are equal
It is equal.The second picture frame is shown on a display panel and detects the intrinsic brilliance value of first area.Now, due to the second grey decision-making
Approached with the first grey decision-making of first area and/or each pixel of second area, the second grey decision-making may be greater than equal to first
Minimum gray value in first grey decision-making of each pixel of region and/or second area, less than or equal to first area and/or second
Maximum gray value in first grey decision-making of each pixel in region.Then user will not substantially discover first area display and its
The difference of the display of peripheral region (such as second area), normal display is not interfered with so as to the trimming process of whole brightness, is carried
High Consumer's Experience.
Preferably, as shown in figure 4, above-mentioned steps 102 specifically include：
Step 1021, a basis ash is determined according to the first grey decision-making of first area and/or each pixel of second area
Rank is worth.Wherein, basic grey decision-making is more than or equal in each pixel of first area and/or second area minimum gray value and small
Maximum gray value in each pixel equal to first area and/or second area.
Preferably, basic grey decision-making is the average value of the first grey decision-making of each pixel of first area and/or second area.
Or basic grey decision-making is grey decision-making most in the first grey decision-making of first area and/or each pixel of second area.So
When first area and second area, or when each pixel of only first area shows the second grey decision-making, with first area and/or second
Each pixel in region shows the display GTG of the first grey decision-making relatively, and user will not substantially discover the display of first area
With the difference of the display of its peripheral region.
Step 1022, basic grey decision-making is defined as first area and second area, or is only defined as each of first area
Second grey decision-making of pixel.
For example, step 101 is acquisition first area and the first grey decision-making of each pixel of second area, step 102 is specific
To determine the second grey decision-making of first area according to the first grey decision-making of first area and each pixel of second area.Wherein,
The average value of first grey decision-making of 50 pixels that the first grey decision-making and second area for 100 pixels that one region includes include
For 200 (i.e. the average value of the first grey decision-making of 150 pixels of first area and second area is 200), it is determined that the firstth area
Second grey decision-making of each pixel in domain is 200.
Or the first grey decision-making of 120 pixels is 200 in 150 pixels of first area and second area, then really
The second grey decision-making for determining each pixel of first area and second area is 200.
Or, the first area obtained in step 101 and the first grey decision-making of each pixel of second area are equal, example again
Such as it is equal to 200.Then determine that first area and second area, or the second grey decision-making of only each pixel of determination first area are
200.Now, the average value of the first grey decision-making of each pixel of first area and second area is 200, equivalent to basic GTG
It is worth for 200.
It should be noted that updating first area and second area in step 103 with the second grey decision-making, or only update first
First grey decision-making of each pixel in region can typically be controlled by OSD maker and generated.Due to first area and second area,
Or only brightness of the display of each pixel of first area for detecting first area, then general OSD maker control generate
First area and second area, or only the GTG divided rank of the second grey decision-making of each pixel of first area is less than the first figure
As the GTG divided rank of the first grey decision-making of each pixel in frame.
For example, the GTG divided rank of the first grey decision-making of each pixel is 0-4096 on display panel in the first picture frame
Rank, and it is 0-255 ranks that OSD maker, which controls the GTG divided rank of the second grey decision-making of renewal first area,.That is the first image
It is 4096 that the first grey decision-making corresponding to the pixel of white is shown in frame, and in the second picture frame OSD maker control generation the
The pixel pair of white is shown in one region and second area, or each pixel of the only first area of OSD maker control generation
The second grey decision-making answered is 255, and it is still 4096 to show that the pixel of white corresponds to the first grey decision-making in each pixel in other regions.
The first area and second area that then OSD maker updates in the second picture frame, or OSD maker only update the
The GTG divided rank of second grey decision-making of each pixel in one region is not equal to first area and/or the secondth area in the first picture frame
In the case of the GTG divided rank of first grey decision-making of each pixel in domain.
Optionally, after above-mentioned steps 101, and also include in the foregoing description brightness correcting method of above-mentioned steps 104：
Step 107, according to the GTG divided rank of the first grey decision-making of each pixel in the first picture frame and the second picture frame
The first area of middle renewal and second area, or the second grey decision-making of each pixel of the first area only updated GTG division etc.
The corresponding relation of level, determines the second grey decision-making corresponding to the first grey decision-making.
Example, the GTG divided rank of the first grey decision-making of each pixel is 0-4096 on display panel in the first picture frame
Rank, and it is 0-255 ranks that OSD maker, which controls the GTG divided rank of the second grey decision-making of generation,.
As shown in figure 5, the brightness correcting method includes：
First grey decision-making of each pixel of step 101, acquisition first area and second area.
Step 102, each picture for determining according to the first grey decision-making of first area and each pixel of second area first area
Second grey decision-making of element.
Example, the average value of the first grey decision-making of each pixel of first area and second area is 3200.
Step 107, according to the GTG divided rank of the first grey decision-making of each pixel in the first picture frame and the second picture frame
The corresponding relation of the GTG divided rank of second grey decision-making of each pixel of the first area of middle renewal, determines the first grey decision-making pair
The second grey decision-making answered.
Wherein, according in the GTG divided rank of the first grey decision-making of each pixel in the first picture frame and the second picture frame more
The corresponding relation of the GTG divided rank of second grey decision-making of each pixel of new first area can be lookup as shown in Figure 6
Table.Wherein, G1 is the first grey decision-making of each pixel in the first picture frame, and G2 is the second ash of each pixel of the first area of renewal
Rank is worth.As shown in fig. 6, the GTG divided rank of G1 grey decision-making is 0-4096 ranks, the GTG divided rank of G2 grey decision-making is
0-255 ranks, the average value of the first grey decision-making of each pixel of first area and second area can be obtained by the look-up table
Second grey decision-making corresponding to 3200 is 200.
Step 103, the first grey decision-making with the second grey decision-making renewal each pixel in first area, to generate the second image
Frame.
Then the second grey decision-making of each pixel of first area and second area is 200 in the second picture frame.
Step 104, the second picture frame is shown on a display panel.
Step 105, the intrinsic brilliance value for detecting first area.
Step 106, intrinsic brilliance value and target brightness value according to first area, adjust the brightness of backlight module.
In practice, it is the white brightness value off field of detection in order to improve the accuracy of display panel brightness.For example, display
The GTG divided rank of panel is 0-4096 ranks, then the corresponding display white of 4096 ranks, the then brightness for detecting display panel are inspections
Each pixel surveyed in first area shows the brightness value of 4096 ranks.But first area shows that white field can cause first area and its
The display in his region is different, and the white field of first area can be particularly evident and dazzling, so as to influence normal display, reduce client's body
Test.
In order that the gamma correction for obtaining display panel is more accurate, in the embodiment of the present invention, first is detected in step 105
Although the intrinsic brilliance value in region is not to obtain off field in vain, the intrinsic brilliance in step 106 and target brightness value are carried out
Change below, so as to will not substantially discover the display of the first area situation different from the display in other regions in user
Under, improve the precision of correction.
Illustrate respectively in two ways below：
Mode one：Target brightness value is the brightness that backlight module first area under default backlight illumination shows complete white field
Value.
As shown in fig. 7, step 106 specifically includes：
Step 106a1, the first reference brightness value is obtained according to intrinsic brilliance value.Wherein, the first reference brightness value is first
Region shows the brightness value of complete white field under actual backlight illumination.
Step 106a2, the first reference brightness value and target brightness value are compared.
Step 106a3, in the case where the first reference brightness value is more than target brightness value, the brightness of backlight module is reduced；
Or in the case where the first reference brightness value is less than target brightness value, increase the brightness of backlight module.
Preferably, intrinsic brilliance value and the first reference brightness value meet following relation：
Wherein, Ls is the first reference brightness value, and Lx is intrinsic brilliance value, and M is that each pixel of first area shows complete white
Grey decision-making, Gamma are the curvature of Gamma compensated curves in display device, and n is the second grey decision-making of each pixel in first area, its
In, the GTG divided rank of the second grey decision-making of each pixel in first area is equal to the GTG of the grey decision-making of each pixel of first area
Divided rank.
Example, the curvature of Gamma compensated curves is 2.2 in display device；Each pixel of first area shows complete white
Grey decision-making is 4096；Each pixel in first area shows that the second grey decision-making is 200 GTGs, and it is corresponding to the grey decision-making of 0-4096 ranks
3200；Then intrinsic brilliance value and the first reference brightness value meet following relation：
Mode two：Target brightness value is the brightness that backlight module first area under default backlight illumination shows complete white field
Value.
As shown in figure 8, step 106 specifically includes：
Step 106b1, the second reference brightness value is obtained according to target brightness value.Wherein, the second reference brightness value is backlight
Each pixel of the module under default backlight illumination in first area shows the brightness value of the second grey decision-making.
Step 106b2, intrinsic brilliance value and the second reference brightness value are compared.
Step 106b3, in the case where intrinsic brilliance value is more than the second reference brightness value, the brightness of backlight module is reduced；
Or in the case where intrinsic brilliance value is less than the second reference brightness value, increase the brightness of backlight module.
Preferably, target brightness value and the second reference brightness value meet following relation：
Wherein, Lb is the second reference brightness value, and La is target brightness value, and M is that each pixel of first area shows complete white
Grey decision-making, Gamma are the curvature of Gamma compensated curves in display device, and n is the second grey decision-making of each pixel in first area, its
In, the GTG divided rank of the second grey decision-making of each pixel in first area is equal to the GTG of the grey decision-making of each pixel of first area
Divided rank, the description being specifically referred in step 106a3, is repeated no more here.
Below, the embodiments of the invention provide the gamma correction corresponding with the brightness correcting method in the embodiment of the present invention
For device, it is necessary to illustrate, each functional unit that following device is included can perform the corresponding steps in the above method, therefore
Each functional unit of device is not described in detail in the following embodiments.
The embodiments of the invention provide a kind of luminance correction device, and applied to display device, display device includes display surface
Plate, display panel include first area and second area, wherein, second area surrounds first area；As shown in figure 9, brightness school
Equipment includes：
Acquiring unit 101, for obtaining the first ash of each pixel of first area and/or second area in the first picture frame
Rank is worth.
Specifically, acquiring unit can be the source electrode driver and gate drivers of display panel.
First determining unit 102, for being determined according to the first grey decision-making of first area and/or each pixel of second area
First area and second area, or only determine the second grey decision-making of each pixel of first area.
Processing unit 103, for updating first area and second area with the second grey decision-making, or only update first area
First grey decision-making of each pixel, to generate the second picture frame.
Display unit 104, for showing the second picture frame on a display panel.
Detection unit 105, for detecting the intrinsic brilliance value of first area.
Specifically, detection unit can be provided in the optical sensor that display panel light emission side is located at corresponding first area.
Adjustment unit 106, for the intrinsic brilliance value and target brightness value according to first area, adjust the bright of backlight module
Degree.
Preferably, as shown in Figure 10, the first determining unit 102 specifically includes：
First determining module 1021, it is true for the first grey decision-making according to first area and/or each pixel of second area
A fixed basic grey decision-making.Wherein, the minimum that basic grey decision-making is more than or equal in each pixel of first area and/or second area
Grey decision-making and the maximum gray value being less than or equal in each pixel of first area and/or second area.
Second determining module 1022, for basic grey decision-making to be defined as into first area and second area, or only it is defined as
Second grey decision-making of each pixel of first area.
It should be noted that processing unit 103 can be OSD maker.Due to first area and second area, or only
The display of each pixel of first area is used for the brightness for detecting first area, then the firstth area of general OSD maker control generation
Domain and second area, or only the GTG divided rank of the second grey decision-making of each pixel of first area is less than in the first picture frame
Each pixel the first grey decision-making GTG divided rank.
For example, the GTG divided rank of the first grey decision-making of each pixel is 0-4096 on display panel in the first picture frame
Rank, and it is 0-255 ranks that OSD maker, which controls the GTG divided rank of the second grey decision-making of renewal first area,.That is the first image
It is 4096 that the first grey decision-making corresponding to the pixel of white is shown in frame, and in the second picture frame OSD maker control generation the
The pixel pair of white is shown in one region and second area, or each pixel of the only first area of OSD maker control generation
The second grey decision-making answered is 255, and it is still 4096 to show that the pixel of white corresponds to the first grey decision-making in each pixel in other regions.
The first area and second area that then OSD maker updates in the second picture frame, or OSD maker only update the
The GTG divided rank of second grey decision-making of each pixel in one region is not equal to first area and/or the secondth area in the first picture frame
In the case of the GTG divided rank of first grey decision-making of each pixel in domain, the luminance correction device also includes：
Second determining unit 107, for the GTG divided rank according to the first grey decision-making of each pixel in the first picture frame
With the first area updated in the second picture frame and second area, or the second grey decision-making of each pixel of the first area only updated
GTG divided rank corresponding relation, determine the second grey decision-making corresponding to the first grey decision-making.
Example, the GTG divided rank of the first grey decision-making of each pixel is 0-4096 on display panel in the first picture frame
Rank, and it is 0-255 ranks that OSD maker, which controls the GTG divided rank of the second grey decision-making of generation,.
As shown in figure 11, the luminance correction device includes：
Acquiring unit 101, the first grey decision-making of each pixel for obtaining first area and second area.
First determining unit 102, for determining according to the first grey decision-making of first area and each pixel of second area
Second grey decision-making of each pixel in one region.
Example, the average value of the first grey decision-making of each pixel of first area and second area is 3200.
Second determining unit 107, for the GTG divided rank according to the first grey decision-making of each pixel in the first picture frame
With the corresponding relation of the GTG divided rank of the second grey decision-making of each pixel of first area updated in the second picture frame, it is determined that
Second grey decision-making corresponding to first grey decision-making.
Wherein, according in the GTG divided rank of the first grey decision-making of each pixel in the first picture frame and the second picture frame more
The corresponding relation of the GTG divided rank of second grey decision-making of each pixel of new first area can be lookup as shown in Figure 6
Table.Wherein, G1 is the first grey decision-making of each pixel in the first picture frame, and G2 is the second ash of each pixel of the first area of renewal
Rank is worth.As shown in fig. 6, the GTG divided rank of G1 grey decision-making is 0-4096 ranks, the GTG divided rank of G2 grey decision-making is
0-255 ranks, the average value of the first grey decision-making of each pixel of first area and second area can be obtained by the look-up table
Second grey decision-making corresponding to 3200 is 200.
Processing unit 103, for updating the first grey decision-making of each pixel in first area with the second grey decision-making, to generate the
Two picture frames.Then the second grey decision-making of each pixel of first area and second area is 200 in the second picture frame.
Display unit 104, for showing the second picture frame on a display panel.
Detection unit 105, for detecting the intrinsic brilliance value of first area.
Adjustment unit 106, for the intrinsic brilliance value and target brightness value according to first area, adjust the bright of backlight module
Degree.
Preferably, target brightness value is to show corresponding to each pixel of the backlight module under default backlight illumination in first area
Show the brightness value of the second grey decision-making；As shown in figure 12, adjustment unit 106 specifically includes：
First comparison module 1061, for comparing intrinsic brilliance value and target brightness value.
Second processing module 1062, in the case of being more than target brightness value in intrinsic brilliance value, reduce backlight module
Brightness；Or in the case where intrinsic brilliance value is less than target brightness value, increase the brightness of backlight module.
Make the luminescent device of the backlight module after being formed specifically, default backlight illumination can be display panel and be not used
And brightness when not decaying.With the use of display device, the luminous efficiency of the luminescent device of backlight module decays, and causes backlight
The actual backlight illumination of module is less than default backlight illumination, then display device using after certain time, it is necessary to increase backlight module
Brightness.
Specifically so that the luminescent device in backlight module is LED as an example, the brightness for increasing backlight module can be increase LED
Driving current value, so as to improve LED luminous efficiency, adjust the backlight illumination of backlight module.
It should be noted that above-mentioned target brightness value can be backlight module under default backlight illumination in first area
Each pixel shows the brightness value of the second grey decision-making.Intrinsic brilliance value is backlight module under actual backlight illumination in first area
Each pixel shows the brightness value of the second grey decision-making.Now, if the GTG division of the grey decision-making of each pixel shown on display panel
Grade is 0-4096 ranks, then above-mentioned predetermined luminance value can be corresponding 4097 when the second grey decision-making is respectively 0-4096 ranks
Grey decision-making.Then intrinsic brilliance value can also be corresponding 4097 grey decision-makings when the second grey decision-making is respectively 0-4096 ranks.
Example, step 101 is specially obtain each pixel of first area and second area in the first picture frame first
Grey decision-making.Step 102 is specially to determine first area according to the first grey decision-making of first area and each pixel of second area
Second grey decision-making of each pixel is 3200.Then intrinsic brilliance value is that backlight module is each in first area under actual backlight illumination
Pixel shows the brightness value of 3200 ranks, for example, 250nit.Then target brightness value is backlight module under default backlight illumination
Each pixel in first area shows the brightness value of 3200 ranks, for example, 300nit.Then because intrinsic brilliance value is bright less than target
Angle value, then need to increase the brightness of backlight module.
Certainly, 4097 target brightness values that corresponding 0-4096 ranks determine can form a look-up table.Compare actual bright
Angle value and target brightness value can carry out lookup with the look-up table to compare, and the bright of backlight module is adjusted further according to comparison result
Degree.
Preferably, target brightness value is the brightness that backlight module first area under default backlight illumination shows complete white field
Value；As shown in figure 13, adjustment unit 106 specifically includes：
First acquisition module 106a1, for obtaining the first reference brightness value according to intrinsic brilliance value.Wherein, the first reference
Brightness value is the brightness value that first area shows complete white field under actual backlight illumination.
Second comparison module 106a2, for comparing the first reference brightness value and target brightness value.
Second processing module 106a3, in the case of being more than target brightness value in the first reference brightness value, reduce backlight
The brightness of module；Or in the case where the first reference brightness value is less than target brightness value, increase the brightness of backlight module.
Preferably, intrinsic brilliance value and the first reference brightness value meet following relation：
Wherein, Ls is the first reference brightness value, and Lx is intrinsic brilliance value, and M is that each pixel of first area shows complete white
Grey decision-making, Gamma are the curvature of Gamma compensated curves in display device, and n is the second grey decision-making of each pixel in first area, its
In, the GTG divided rank of the second grey decision-making of each pixel in first area is equal to the GTG of the grey decision-making of each pixel of first area
Divided rank.
Preferably, target brightness value is that backlight module first area under predetermined luminance shows complete white brightness value；Such as figure
Shown in 14, adjustment unit 106 specifically includes：
Second acquisition module 106b1, for obtaining the second reference brightness value according to target brightness value.Wherein, the second reference
Brightness value is the brightness value that each pixel of the backlight module under default backlight illumination in first area shows the second grey decision-making.
3rd comparison module 106b2, for comparing intrinsic brilliance value and the second reference brightness value.
3rd processing module 106b32, in the case of being more than the second reference brightness value in intrinsic brilliance value, reduce the back of the body
The brightness of optical mode group；Or in the case where intrinsic brilliance value is less than the second reference brightness value, increase the brightness of backlight module.
Preferably, target brightness value and the second reference brightness value meet following relation：
Wherein, Lb is the second reference brightness value, and La is target brightness value, and M is that each pixel of first area shows complete white
Grey decision-making, Gamma are the curvature of Gamma compensated curves in display device, and n is the second grey decision-making of each pixel in first area, its
In, the GTG divided rank of the second grey decision-making of each pixel in first area is equal to the GTG of the grey decision-making of each pixel of first area
Divided rank.
The embodiments of the invention provide a kind of display device, including any described brightness school provided in an embodiment of the present invention
Equipment.The display device can be liquid crystal display, Electronic Paper, OLED (Organic Light-Emitting Diode,
Organic Light Emitting Diode) display device and TV, digital camera, mobile phone, the flat board including these display devices such as display
Any product or part with display function such as computer.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. a kind of brightness correcting method, applied to display device, the display device includes display panel and backlight module, it is special
Sign is that the display panel includes first area and second area, wherein, the second area surrounds the first area；
The brightness correcting method includes：
Obtain the first grey decision-making of each pixel of first area described in the first picture frame and/or the second area；
According to the first area and/or the first grey decision-making of each pixel of the second area, determine the first area and
The second area, or only determine the second grey decision-making of each pixel of the first area, wherein, the first area and described
Second area, or the second grey decision-making of each pixel of only described first area are equal；
The first area and the second area are updated with second grey decision-making, or only update each picture of the first area
First grey decision-making of element, to generate the second picture frame；
Second picture frame is shown on said display panel；
Detect the intrinsic brilliance value of the first area；
According to the intrinsic brilliance value and target brightness value of the first area, the brightness of the backlight module is adjusted.
2. brightness correcting method according to claim 1, it is characterised in that described according to the first area and/or institute
The first grey decision-making for stating each pixel of second area determines the first area and the second area, or only determines described first
Second grey decision-making of each pixel in region specifically includes：
One basic grey decision-making is determined according to the first grey decision-making of the first area and/or each pixel of the second area；
Wherein, the minimum gray that the basic grey decision-making is more than or equal in each pixel of the first area and/or the second area
Value and the maximum gray value being less than or equal in each pixel of the first area and/or the second area；
The basic grey decision-making is defined as the first area and the second area, or is only defined as the first area
Second grey decision-making of each pixel.
3. brightness correcting method according to claim 2, it is characterised in that the basic grey decision-making is the first area
And/or the average value of the first grey decision-making of each pixel of the second area；Or
The basic grey decision-making be each pixel of the first area and/or the second area the first grey decision-making in it is most
Grey decision-making.
4. brightness correcting method according to claim 1, it is characterised in that the target brightness value is corresponding to the back of the body
Each pixel of the optical mode group under default backlight illumination in the first area shows the brightness value of the second grey decision-making；
The intrinsic brilliance value and target brightness value according to the first area, the brightness for adjusting the backlight module are specifically wrapped
Include：
Compare the intrinsic brilliance value and the target brightness value；
In the case where the intrinsic brilliance value is more than the target brightness value, the brightness of the backlight module is reduced；Or
In the case where the intrinsic brilliance value is less than the target brightness value, increase the brightness of the backlight module.
5. brightness correcting method according to claim 4, it is characterised in that the target brightness value is backlight module pre-
If the first area shows the brightness value of complete white field under backlight illumination；
The intrinsic brilliance value and target brightness value according to the first area, the brightness for adjusting the backlight module are specifically wrapped
Include：
First reference brightness value is obtained according to the intrinsic brilliance value, wherein, first reference brightness value is firstth area
Domain shows the brightness value of complete white field under actual backlight illumination；
Compare first reference brightness value and the target brightness value；
In the case where first reference brightness value is more than the target brightness value, the brightness of the backlight module is reduced；Or
Person,
In the case where first reference brightness value is less than the target brightness value, increase the brightness of the backlight module.
6. brightness correcting method according to claim 5, it is characterised in that the intrinsic brilliance value and first reference
Brightness value meets following relation：
<mrow>
<mi>L</mi>
<mi>s</mi>
<mo>=</mo>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
<mi>M</mi>
<mi>n</mi>
</mfrac>
<mo>)</mo>
</mrow>
<mrow>
<mi>G</mi>
<mi>a</mi>
<mi>m</mi>
<mi>m</mi>
<mi>a</mi>
</mrow>
</msup>
<mo>&times;</mo>
<mi>L</mi>
<mi>x</mi>
<mo>;</mo>
</mrow>
Wherein, Ls is the first reference brightness value, and Lx is intrinsic brilliance value, and M is that each pixel of first area shows complete white GTG
Value, Gamma are the curvature of Gamma compensated curves in the display device, and n is the second GTG of each pixel in the first area
Value.
7. brightness correcting method according to claim 4, it is characterised in that the target brightness value is backlight module pre-
If the first area shows the brightness value of complete white field under backlight illumination；
The intrinsic brilliance value and target brightness value according to the first area, the brightness for adjusting the backlight module are specifically wrapped
Include：
Second reference brightness value is obtained according to the target brightness value, wherein, second reference brightness value is that backlight module exists
Each pixel under default backlight illumination in the first area shows the brightness value of the second grey decision-making；
Compare the intrinsic brilliance value and second reference brightness value；
In the case where the intrinsic brilliance value is more than second reference brightness value, the brightness of the backlight module is reduced；Or
Person,
In the case where the intrinsic brilliance value is less than second reference brightness value, increase the brightness of the backlight module.
8. brightness correcting method according to claim 7, it is characterised in that the target brightness value and second reference
Brightness value meets following relation：
<mrow>
<mi>L</mi>
<mi>b</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>L</mi>
<mi>a</mi>
</mrow>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
<mi>M</mi>
<mi>n</mi>
</mfrac>
<mo>)</mo>
</mrow>
<mrow>
<mi>G</mi>
<mi>a</mi>
<mi>m</mi>
<mi>m</mi>
<mi>a</mi>
</mrow>
</msup>
</mfrac>
<mo>;</mo>
</mrow>
Wherein, Lb is the second reference brightness value, and La is target brightness value, and M is that each pixel of first area shows complete white GTG
Value, Gamma are the curvature of Gamma compensated curves in the display device, and n is the second GTG of each pixel in the first area
Value.
9. a kind of luminance correction device, applied to display device, the display device includes display panel, it is characterised in that institute
Stating display panel includes first area and second area, wherein, the second area surrounds the first area；The brightness school
Equipment includes：
Acquiring unit, for obtaining first of each pixel of first area and/or the second area described in the first picture frame
Grey decision-making；
First determining unit, for the first grey decision-making according to the first area and/or each pixel of the second area, really
The fixed first area and the second area, or the second grey decision-making of each pixel of the first area is only determined, wherein, institute
State first area and the second area, or the second grey decision-making of each pixel of only described first area is equal；
Processing unit, for updating the first area and the second area with second grey decision-making, or only described in renewal
First grey decision-making of each pixel of first area, to generate the second picture frame；
Display unit, for showing second picture frame on said display panel；
Detection unit, for detecting the intrinsic brilliance value of the first area；
Adjustment unit, for the intrinsic brilliance value and target brightness value according to the first area, adjust the brightness of backlight module.
10. luminance correction device according to claim 9, it is characterised in that first determining unit is specifically used for, root
A basic grey decision-making is determined according to the first grey decision-making of the first area and/or each pixel of the second area, and by institute
State basic grey decision-making and be defined as the first area and the second area, or be only defined as each pixel of the first area
Second grey decision-making；
Wherein, the minimum that the basic grey decision-making is more than or equal in each pixel of the first area and/or the second area
Grey decision-making and the maximum gray value being less than or equal in each pixel of the first area and/or the second area.
11. luminance correction device according to claim 9, it is characterised in that the target brightness value is corresponding to described
Each pixel of the backlight module under default backlight illumination in the first area shows the brightness value of the second grey decision-making；The adjustment
Unit specifically includes：
Comparison module, for the intrinsic brilliance value and the target brightness value；
Processing module, in the case of being more than the target brightness value in the intrinsic brilliance value, reduce the backlight module
Brightness；Or in the case where the intrinsic brilliance value is less than the target brightness value, increase the bright of the backlight module
Degree.
12. luminance correction device according to claim 11, it is characterised in that the target brightness value is that backlight module exists
The first area shows the brightness value of complete white field under default backlight illumination；
The adjustment unit also includes：
First acquisition module, for obtaining the first reference brightness value according to the intrinsic brilliance value, wherein, described first with reference to bright
Angle value is the brightness value that the first area shows complete white field under actual backlight illumination；The comparison module is specifically used for, than
First reference brightness value and the target brightness value；
The processing module is specifically used for, and in the case where first reference brightness value is more than the target brightness value, reduces
The brightness of the backlight module；Or in the case where first reference brightness value is less than the target brightness value, increase institute
State the brightness of backlight module.
13. luminance correction device according to claim 11, it is characterised in that the target brightness value is that backlight module exists
The first area shows complete white brightness value under predetermined luminance；
The adjustment unit also includes：
Second acquisition module, for obtaining the second reference brightness value according to the target brightness value, wherein, described second with reference to bright
Angle value is the brightness value that each pixel of the backlight module under default backlight illumination in the first area shows the second grey decision-making；
The comparison module is specifically used for, the intrinsic brilliance value and second reference brightness value；
The processing module is specifically used for, and in the case where the intrinsic brilliance value is more than second reference brightness value, reduces
The brightness of the backlight module；Or in the case where the intrinsic brilliance value is less than second reference brightness value, increase institute
State the brightness of backlight module.
14. a kind of display device, it is characterised in that including the luminance correction device described in claim any one of 9-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828663.7A CN105374340B (en) | 2015-11-24 | 2015-11-24 | A kind of brightness correcting method, device and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828663.7A CN105374340B (en) | 2015-11-24 | 2015-11-24 | A kind of brightness correcting method, device and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105374340A CN105374340A (en) | 2016-03-02 |
| CN105374340B true CN105374340B (en) | 2018-01-09 |
Family
ID=55376474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510828663.7A Active CN105374340B (en) | 2015-11-24 | 2015-11-24 | A kind of brightness correcting method, device and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105374340B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895054A (en) * | 2016-05-17 | 2016-08-24 | 深圳天珑无线科技有限公司 | Adjustment method of output brightness, adjustment method of Gamma curve and display device |
| CN106596068B (en) * | 2016-12-20 | 2019-05-17 | 广州视源电子科技股份有限公司 | A kind of detection method and device of the brightness of display screen uniformity |
| CN108682390A (en) | 2018-05-16 | 2018-10-19 | 京东方科技集团股份有限公司 | A kind of display device and its brightness detection method |
| CN108766347A (en) * | 2018-06-13 | 2018-11-06 | 京东方科技集团股份有限公司 | A kind of display panel, its display methods and display device |
| CN110956934B (en) * | 2018-09-27 | 2021-04-02 | 瀚宇彩晶股份有限公司 | Display and display brightness adjusting method thereof |
| CN110322823B (en) * | 2019-05-09 | 2023-02-17 | 京东方科技集团股份有限公司 | Display substrate, brightness detection method and device thereof, and display device |
| CN110459159B (en) * | 2019-08-15 | 2021-08-31 | 成都辰显光电有限公司 | Display device and driving method thereof |
| CN110634434B (en) * | 2019-09-11 | 2022-08-05 | 武汉天马微电子有限公司 | Driving method and driving device of display panel and display device |
| CN111415608B (en) * | 2020-04-13 | 2021-10-26 | 深圳天德钰科技股份有限公司 | Driving method, driving module and display device |
| CN113571026A (en) * | 2020-04-29 | 2021-10-29 | 华为技术有限公司 | Screen brightness calibration method, screen brightness calibration device and electronic equipment |
| CN112365862B (en) * | 2020-11-09 | 2021-12-03 | 深圳市华星光电半导体显示技术有限公司 | Display panel brightness adjusting method and device |
| CN113763892B (en) * | 2021-09-17 | 2023-02-03 | 京东方科技集团股份有限公司 | Gray scale adjusting method, display module, electronic equipment and readable storage medium |
| WO2023050190A1 (en) * | 2021-09-29 | 2023-04-06 | 京东方科技集团股份有限公司 | Brightness adjusting method and adjusting system and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520988A (en) * | 2008-02-27 | 2009-09-02 | 株式会社日立显示器 | Display device |
| CN101833928A (en) * | 2010-04-24 | 2010-09-15 | 华映光电股份有限公司 | Method for adjusting luminosity of display and related backlight module |
| JP2011053264A (en) * | 2009-08-31 | 2011-03-17 | Sharp Corp | Liquid crystal display device |
| EP2299433A1 (en) * | 2008-07-03 | 2011-03-23 | Sharp Kabushiki Kaisha | Image display device and image display method |
| CN102194411A (en) * | 2010-03-10 | 2011-09-21 | 京东方科技集团股份有限公司 | Picture adjusting method, device and system |
| CN103943080A (en) * | 2014-03-06 | 2014-07-23 | 京东方科技集团股份有限公司 | Display device pixel brightness compensation control method and device |
| CN104167187A (en) * | 2014-08-28 | 2014-11-26 | 青岛海信电器股份有限公司 | Wide-screen film display mode identifying method and device |
| CN104715731A (en) * | 2015-03-11 | 2015-06-17 | 青岛海信电器股份有限公司 | Screen brightness adjustment method and device and liquid crystal display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080025931A (en) * | 2006-09-19 | 2008-03-24 | 삼성전자주식회사 | Liquid crystal display |
-
2015
- 2015-11-24 CN CN201510828663.7A patent/CN105374340B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520988A (en) * | 2008-02-27 | 2009-09-02 | 株式会社日立显示器 | Display device |
| EP2299433A1 (en) * | 2008-07-03 | 2011-03-23 | Sharp Kabushiki Kaisha | Image display device and image display method |
| JP2011053264A (en) * | 2009-08-31 | 2011-03-17 | Sharp Corp | Liquid crystal display device |
| CN102194411A (en) * | 2010-03-10 | 2011-09-21 | 京东方科技集团股份有限公司 | Picture adjusting method, device and system |
| CN101833928A (en) * | 2010-04-24 | 2010-09-15 | 华映光电股份有限公司 | Method for adjusting luminosity of display and related backlight module |
| CN103943080A (en) * | 2014-03-06 | 2014-07-23 | 京东方科技集团股份有限公司 | Display device pixel brightness compensation control method and device |
| CN104167187A (en) * | 2014-08-28 | 2014-11-26 | 青岛海信电器股份有限公司 | Wide-screen film display mode identifying method and device |
| CN104715731A (en) * | 2015-03-11 | 2015-06-17 | 青岛海信电器股份有限公司 | Screen brightness adjustment method and device and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105374340A (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105374340B (en) | A kind of brightness correcting method, device and display device | |
| KR102545813B1 (en) | Display apparatus and method for displaying | |
| CN106205499B (en) | Display device for improving image quality and the method for driving the display device | |
| EP2940680B1 (en) | Transparent display device and method for controlling same | |
| US10297206B2 (en) | Display device | |
| EP2979264B1 (en) | Image processing method and apparatus for display devices | |
| CN113053310B (en) | Gamma adjusting method and device for display panel and display equipment | |
| TWI423198B (en) | Display apparatus and method for adjusting gray-level of screen image depending on environment illumination | |
| CN112005292B (en) | Method for sensing light | |
| US9576538B2 (en) | Display apparatus and liquid crystal display apparatus | |
| US10643549B1 (en) | Display with adjustable direct-lit backlight units | |
| KR102142624B1 (en) | Display device | |
| US10249251B2 (en) | Display device | |
| US8760386B2 (en) | Display device and method for driving the same | |
| EP2221796B1 (en) | Method of driving a light source, backlight apparatus for performing the method and liquid crystal display apparatus having the backlight apparatus | |
| CN106373093B (en) | Image processing method, image processing circuit and display equipment | |
| US10964275B2 (en) | Displays with adjustable direct-lit backlight units and adaptive processing | |
| CN103871358A (en) | Organic light emitting display and degradation compensation method threof | |
| US10571744B1 (en) | Displays with adjustable direct-lit backlight units and power consumption compensation | |
| CN108717845B (en) | Image display panel, image display device, and electronic apparatus | |
| US11335276B2 (en) | Display driving device and driving method of adjusting brightness of image based on ambient illumination | |
| KR20230018823A (en) | Display device and method for driving the same | |
| KR102167141B1 (en) | Display Device and Driving Method thereof | |
| KR20240009045A (en) | Logo detection module and method for driving the same | |
| KR20130044936A (en) | Liquid crystal display apparatus and driving method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |