CN107437402B - Method for controlling backlight thereof, device and display equipment - Google Patents
Method for controlling backlight thereof, device and display equipment Download PDFInfo
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- CN107437402B CN107437402B CN201710421933.1A CN201710421933A CN107437402B CN 107437402 B CN107437402 B CN 107437402B CN 201710421933 A CN201710421933 A CN 201710421933A CN 107437402 B CN107437402 B CN 107437402B
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
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Abstract
The invention discloses a kind of method for controlling backlight thereof, belong to field of display technology.Present invention firstly provides watching received general brightness when showing picture in the form of the product of picture pixel brightness and backlight illumination to measure human eye, and it is held essentially constant with the product in certain environment condition to control target, dynamic control is carried out to backlight illumination according to current picture pixel brightness, actually received brightness frequently changes the eyesight injury generated to avoidable human eye, and then achievees the purpose that eyeshield.The invention also discloses a kind of backlight control apparatus and a kind of display equipment.Compared with prior art, the present invention can effectively avoid the human eye eyesight that actually received brightness frequently changes to generate and injure, and then achieve the purpose that eyeshield；In addition, inventive algorithm is simple, and it is low to the hardware requirement of equipment, it is easy to realize in all kinds of existing display equipment.
Description
Technical field
The present invention relates to a kind of method for controlling backlight thereof more particularly to a kind of back of non-local dimming (local dimming)
Light control method, device, belong to field of display technology.
Background technique
One of core as display technology, backlight control techniques are constantly subjected to the attention of researcher.Dynamic is carried on the back at present
Light regulation technology is widely applied in various display equipment.So-called dynamic backlight adjusts the brightness referred to backlight
Real-time control is carried out to reach certain control target.According to control target or the difference of control mode, occur diversified
Backlight control techniques have plenty of from the point of view of controlling target and display contrast or reduce energy consumption as target to improve, have plenty of to mention
It is target that high user, which watches comfort level, besides to protect eyesight as target.From the point of view of control mode, have plenty of according to environment
Brightness adjusts backlight illumination in the same direction, i.e. ambient brightness is bigger, and backlight illumination is bigger；Has plenty of the brightness according to current display picture
Backlight illumination is adjusted in the same direction, i.e. picture brightness is bigger, and backlight illumination is bigger.
Existing dynamic backlight technology mostly be gone according to the brightness value of current picture in real time or delay go adjustment backlight
Brightness generally can give the visual effect that bright picture is brighter, and dark picture is darker, and dynamic contrast improves, together
When, it brightens since backlight illumination is constantly dimmed, to a certain extent, can also achieve the effect that save the energy.Existing dynamic
The limitation of backlight technology is:
(1) for the dynamic backlight mode of non-local dimming (local dimming), under darker scene, backlight is bright
Degree is corresponding to be reduced, and the details that may result in dark scene is smudgy.
(2) under compared with bright field scape, backlight may reach maximum value, under darker environment, can feel dazzling.
(3) light-modulating mode of non-local dimming causes under same secondary picture, picture backlight illumination always one everywhere
It causes, there is no promoted for static contrast.The viewing experience integrally promoted is limited.
(4) imaging pattern and principle of human eye are considered, frequent luminance transformation easily causes asthenopia, to eyesight
It causes to damage.
Summary of the invention
Technical problem to be solved by the present invention lies in existing dynamic backlight technical deficiency is overcome, a kind of backlight control is provided
Method, apparatus can avoid the frequent contraction diastole of eye muscle, mitigate asthenopia, achieve the purpose that protect eyesight.
The present invention specifically uses following technical scheme to solve above-mentioned technical problem:
A kind of method for controlling backlight thereof is held essentially constant value with the human eye perceived brightness under the conditions of certain environment as control mesh
Mark, according to current picture pixel brightness, controls backlight illumination；The metric form of the human eye perceived brightness is picture
The product of pixel intensity and backlight illumination.
Preferably, refer under the conditions of the certain environment within the same period in one day or ambient brightness is pre-
If same brightness range in.
Preferably, the picture pixel brightness refers to each in the brightness value mean value or finger drawing face of each pixel in picture
The mean value of R, G of pixel, B component maximum value.
Preferably, current picture pixel brightness is obtained by carrying out real-time statistics to present frame, or according to preceding several
The picture pixel luma prediction of frame obtains.In view of algorithm complexity and to the requirement of hardware, it is further preferred that current
Picture pixel brightness uses Smoothing Forecasting or trend extropolation prediction side according to the picture pixel brightness of preceding several frames
Method is predicted to obtain.
Preferably, the steady state value is preset human eye perceived brightness standard value；Alternatively, the steady state value is preset people
The product of eye perceived brightness standard value and perception correction factor, the perception correction factor are that current backlight illumination user sets
The ratio of maximum value is adjusted with backlight illumination user for value.
It determines, or passes through it is further preferred that the human eye perceived brightness standard value first passes through visual perception experiment in advance
Following methods determine: collecting backlight illumination preference data of user under the conditions of certain environment by big data platform, and therefrom
The favorite backlight brightness values of user under the environmental condition are found out, it is then bright with the backlight brightness values and preset picture pixel
The product of standard value is spent as the human eye perceived brightness standard value under the environmental condition.
The picture pixel luminance standard value is preferably the 50~70% of the picture pixel brightness of pure white picture.
Preferably, the control target value BL of backlight illumination is specifically determined according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Alternatively, the specific control target value BL for determining backlight illumination according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Or the control target value BL of backlight illumination is specifically determined according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Following technical scheme can also be obtained according to identical invention thinking:
A kind of backlight control apparatus, comprising:
Picture pixel luminance acquisition module, for obtaining current picture pixel brightness；
Backlight control module, for being held essentially constant value with the human eye perceived brightness under the conditions of certain environment as control mesh
Mark, current picture pixel brightness, controls backlight illumination according to acquired in picture pixel luminance acquisition module；It is described
The metric form of human eye perceived brightness is the product of picture pixel brightness and backlight illumination.
Preferably, refer under the conditions of the certain environment within the same period in one day or ambient brightness is pre-
If same brightness range in.
Preferably, the picture pixel brightness refers to each in the brightness value mean value or finger drawing face of each pixel in picture
The mean value of R, G of pixel, B component maximum value.
Preferably, picture pixel luminance acquisition module obtains current picture pixel by carrying out real-time statistics to present frame
Brightness, or current picture pixel brightness is obtained according to the picture pixel luma prediction of preceding several frames.In view of algorithm complexity
Degree and the requirement to hardware, it is further preferred that picture pixel luminance acquisition module is bright according to the picture pixel of preceding several frames
Degree, predicts to obtain current picture pixel brightness using Smoothing Forecasting or trend extropolation prediction technique.
Preferably, the steady state value is preset human eye perceived brightness standard value；Alternatively, the steady state value is preset people
The product of eye perceived brightness standard value and perception correction factor, the perception correction factor are that current backlight illumination user sets
The ratio of maximum value is adjusted with backlight illumination user for value.
It determines, or passes through it is further preferred that the human eye perceived brightness standard value first passes through visual perception experiment in advance
Following methods determine: collecting backlight illumination preference data of user under the conditions of certain environment by big data platform, and therefrom
The favorite backlight brightness values of user under the environmental condition are found out, it is then bright with the backlight brightness values and preset picture pixel
The product of standard value is spent as the human eye perceived brightness standard value under the environmental condition.
The picture pixel luminance standard value is preferably the 50~70% of the picture pixel brightness of pure white picture.
Preferably, backlight control module specifically determines the control target value BL of backlight illumination according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Alternatively, backlight control module specifically determines the control target value BL of backlight illumination according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Or backlight control module specifically determines the control target value BL of backlight illumination according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
A kind of display equipment, the backlight control apparatus including backlight and for being controlled backlight, the back
Light control device is backlight control apparatus described in any of the above technical solution.
Compared with prior art, technical solution of the present invention has the advantages that
Present invention firstly provides aobvious in viewing to measure human eye in the form of the product of picture pixel brightness and backlight illumination
Show received general brightness when picture, and be held essentially constant with the product in certain environment condition to control target,
Dynamic control is carried out to backlight illumination according to current picture pixel brightness, can avoid human eye, actually received brightness frequently changes
Eyesight injury to generate, and then achieve the purpose that eyeshield.
Technical solution of the present invention can also avoid conventional dynamic backlight technology under bright picture since backlight is most bright dazzling, secretly
Under picture backlight illumination it is excessively dark caused by the smudgy problem of image detail.
Specific embodiment
By carrying out carefully analyzing discovery to human vision model, on the one hand the television image that human eye is perceived derives from
On the one hand the brightness of television backlight shows the brightness of picture from TV, be a comprehensive result of the two.When backlight is constant
When constant or backlight is changed with picture brightness at approximate direct proportion, human eye in order to adapt to the variation of the brightness received,
Eye muscle can ceaselessly be shunk or diastole, maintains this more frequent eye muscle to shrink for a long time, will cause eye
Portion's muscular fatigue, further causing vision impairment, (can refer to the reading under the fluorescent lamp frequently flashed will cause vision impairment
Principle is the same, although optic nerve may perceive the flashing less than light, human eye muscle but can because of frequent flashing and
Diastole is ceaselessly shunk, vision impairment is caused).
Based on the above discovery, thinking of the invention is measured in the form of the product of picture pixel brightness and backlight illumination
Received general brightness of the human eye when viewing shows picture, the present invention are called human eye perceived brightness, and with human eye sense
Know brightness certain environment condition be held essentially constant for control target, according to current picture pixel brightness to backlight illumination into
Mobile state control, can avoid human eye, actually received brightness frequently changes the eyesight injury generated, and then reaches eyeshield
Purpose.
Specifically, method for controlling backlight thereof of the invention is to be kept substantially with the human eye perceived brightness under the conditions of certain environment
Steady state value is that control target controls backlight illumination according to current picture pixel brightness；The human eye perceived brightness
Metric form is the product of picture pixel brightness and backlight illumination.
Backlight control apparatus of the invention, comprising:
Picture pixel luminance acquisition module, for obtaining current picture pixel brightness；
Backlight control module, for being held essentially constant value with the human eye perceived brightness under the conditions of certain environment as control mesh
Mark, current picture pixel brightness, controls backlight illumination according to acquired in picture pixel luminance acquisition module；It is described
The metric form of human eye perceived brightness is the product of picture pixel brightness and backlight illumination.
Why limit in above-mentioned technical proposal and allow under the conditions of certain environment: in different external environment conditions
Under, such as in the case of the different weather of daytime and night or same period or under different indoor lighting conditions, people
Eye can change to the perception of brightness, therefore should not carry out backlight control using a unified human eye perceived brightness.For
This, external environment condition can be classified in advance, and the same human eye perceived brightness control is used under same class environmental condition
Value processed.For example, can be segmented to one day twenty four hours, it is divided into two periods of daytime and night, or more meticulously divide
For early morning, noon, dusk, this four periods at night, the period being presently in can determine by the timer in display equipment,
And then use corresponding human eye perceived brightness controlling value.Ambient brightness can also be divided into several sections, each environment is bright
The corresponding corresponding human eye perceived brightness controlling value of section is spent, then the sensors towards ambient brightness included using display equipment
It is monitored, and corresponding human eye perceived brightness controlling value is selected to carry out backlight illumination control.
Picture pixel brightness in technical solution of the present invention is the overall brightness for characterizing image frame, for no office
For the display equipment of portion's dimming function, the average brightness of picture is typically referred to.Specific picture pixel brightness metric mode can
Using the form of the brightness value mean value of pixel each in picture, or using R, G of each pixel in picture, B component maximum value it is equal
The form of value, or using other metric forms that are existing or will having.
Current picture pixel brightness data can be obtained by way of obtaining in real time, can also be pre- by historical data
It surveys or infers and obtain.For example, can handle the digital signal of present frame, each pixel in real-time statistics present frame picture
R, G of each pixel in brightness value mean value or picture, B component maximum value mean value (according to picture pixel brightness used in specific
Depending on metric form), to obtain current picture pixel brightness.Alternatively, according to preceding several frames (such as first five frame or preceding ten
Frame) picture pixel luma prediction obtain current picture pixel brightness.Existing various prediction algorithms, example can specifically be used
Such as the more common simple method of average, the method for moving average, exponential smoothing, linear regression method or more complicated artificial neural network
The prediction techniques such as network, support vector machines, deep learning.In view of algorithm complexity and to the requirement of hardware, the present invention is preferred
It predicts to obtain current picture pixel brightness using Smoothing Forecasting or trend extropolation prediction technique.It is involved herein
Prediction algorithm be the prior art, for the sake of saving space, details are not described herein again.
The steady state value can be the preset human eye perceived brightness standard value corresponding to each environmental condition of manufacturer, false
If using TLn *To indicate the default human eye perceived brightness standard value under the n environmental condition being presently in, then simplest determination
According to the definition of human eye perceived brightness, i.e., the method that backlight illumination controls target value BL is exactly
TLn *=PL × BL (1)
It obtains, wherein PL indicates current picture pixel brightness.
Human eye perceived brightness standard value TLn *It can be obtained using various ways, a kind of mode is that manufacturer first passes through in advance
Visual perception experiment determines, such as is carried out under difficult environmental conditions to the picture of different brightness using one or more groups of participants
Viewing, and the human eye sense that majority under each environmental condition feel the most comfortable is selected using experimental methods such as dichotomy, forced choice methods
Know brightness or be least also easy to produce the human eye perceived brightness of human eye fatigue, and using it as human eye perceived brightness standard value TLn *。
Human eye perceived brightness standard value TLn *It can also determine by the following method: user being collected by big data platform and is existed
Backlight illumination preference data under the conditions of certain environment, and the user under the environmental condition is therefrom found out by data analysis and is most liked
Joyous backlight brightness values, then using the product of the backlight brightness values and preset picture pixel luminance standard value as the environment item
Human eye perceived brightness standard value TL under partn *.Picture pixel luminance standard value therein can be by counting multitude of video
The method of analysis obtains, and preferred picture pixel luminance standard value is the 50~70% of the picture pixel brightness of pure white picture, most
It is well 60IRE, i.e., the 60% of the picture pixel brightness of pure white picture.
Human eye perceived brightness standard value TLn *It can also determine in real time by the following method: eyeshield mode is opened with user
On the basis of timing node, obtain current pixel intensity and and active user set by backlight brightness values, and with the two
Product is as human eye perceived brightness standard value TLn *, the dynamic control of Lai Jinhang backlight illumination.This method obtains TLn *Value is more
It is simple and convenient.It can be directly determined according to the currently watched brightness of user, can prevent from opening eyeshield mode moment total lumen
The case where bounce.But this method randomness is larger, the scene that user opens eyeshield mode is not known simultaneously, opens eyeshield every time
TL when moden *Will be inconsistent, and TLn *It is possible that the case where certain extremums.
In view of night or under darker scene, user can turn down backlight value to adapt to the variation of environment.Using pre-
The TL of the fixation first setn *As the steady state value, all scenes can be difficult to adapt to.Therefore, the present invention is further introduced into
Correction factor Q is perceived as adjusting, the perception correction factor Q is that current backlight illumination user setting value and backlight illumination are used
The ratio of maximum value is adjusted (during user's practical adjustments, when it is 0 that user on UI panel, which is adjusted to backlight, at this time in family
Backlight can't also extinguish, but show a lower numerical value.Although the adjustable backlight numerical value of user and practical backlight
Numerical value correlation, but be not complete one-to-one relationship, illustrate hereby), and the n environment being presently in
Under the conditions of the steady state value TLnFor the human eye perceived brightness standard value TL under the n environmental condition that is presently inn *With perception
The product of correction factor Q, it may be assumed that
TLn=TLn *×Q (2)
According to formula (2), determine that the formula of backlight illumination control target value BL then becomes:
If determining the control target value BL of backlight illumination according to formula (1) or formula (3), it is assumed that display equipment can
The maximum backlight illumination reached is BLmax, it is most bright to consider that backlight is adjusted to by user, i.e. when Q=1, if current picture is darker
Situation, then calculating obtained BL will be greater than BLmax, the present invention is referred to as spillover.Hair in order to prevent this phenomenon
Raw, the present invention further modifies to formula (3), to guarantee that BL obtained can not be greater than BLmax.Specific modification mode
The form of piecewise function or/and the form of approximating function can be used, the following are several concrete modification examples.
Modification example 1,
The control target value BL of backlight illumination is determined according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Modification example 2,
The control target value BL of backlight illumination is determined according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
Modification example 3,
The control target value BL of backlight illumination is determined according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n being presently in
The steady state value under environmental condition, PL indicate current picture pixel brightness.
After being modified using the form of piecewise function or/and the form of approximating function to formula (3), actual human eye perception
Brightness (i.e. the product of picture pixel brightness and backlight illumination) is simultaneously non-constant equal to TL, but can guarantee and fluctuating near TL, keeps away
The phenomenon that brightness of TV overall output is widely varied is exempted from, while avoiding stage of development from influencing viewing experience, also very
The effect of eyeshield is remained in big degree.
After the control target value BL for obtaining backlight illumination, the backlight of backlight sending can be driven by backlight drive circuit
Brightness reaches BL, this is existing well-known technique, is no longer described in detail herein.
Using technical solution of the present invention, show that the backlight illumination of equipment is inversely proportional substantially with current picture pixel brightness
Example, the general brightness that human eye receives can be held essentially constant, can effectively avoid human eye actually received brightness frequently change from
And the eyesight injury generated, and then achieve the purpose that eyeshield.In addition, the algorithm of backlight control scheme of the present invention is simple, to equipment
Hardware requirement it is low, be easy to realize in all kinds of existing display equipment.
Claims (15)
1. a kind of method for controlling backlight thereof, which is characterized in that be held essentially constant with the human eye perceived brightness under the conditions of certain environment
Value controls backlight illumination according to current picture pixel brightness for control target；The measurement of the human eye perceived brightness
Mode is the product of picture pixel brightness and backlight illumination；The control target value BL of backlight illumination is specifically determined according to the following formula:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n environment item being presently in
The steady state value under part, PL indicate current picture pixel brightness；Or the control of backlight illumination is specifically determined according to the following formula
Target value BL processed:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n environment item being presently in
The steady state value under part, PL indicate current picture pixel brightness.
2. method as described in claim 1, which is characterized in that the picture pixel brightness refers to the brightness value of each pixel in picture
The mean value of R, G of each pixel in mean value or finger drawing face, B component maximum value.
3. method as described in claim 1, which is characterized in that current picture pixel brightness is by uniting in real time to present frame
Meter obtains, or is obtained according to the picture pixel luma prediction of preceding several frames.
4. method as claimed in claim 3, which is characterized in that current picture pixel brightness is according to the picture pixels of preceding several frames
Brightness is predicted to obtain using Smoothing Forecasting or trend extropolation prediction technique.
5. method as described in claim 1, which is characterized in that the steady state value is preset human eye perceived brightness standard value；Or
Person, the steady state value are preset human eye perceived brightness standard value and the product for perceiving correction factor, the perception correction factor
The ratio of maximum value is adjusted for current backlight illumination user setting value and backlight illumination user.
6. method as claimed in claim 5, which is characterized in that the human eye perceived brightness standard value first passes through visual perception reality in advance
Determination is tested, or is determined by the following method: backlight illumination of user under the conditions of certain environment is collected by big data platform
Preference data, and therefrom find out the favorite backlight brightness values of user under the environmental condition, then with the backlight brightness values with
The product of preset picture pixel luminance standard value is as the human eye perceived brightness standard value under the environmental condition.
7. method as claimed in claim 6, which is characterized in that the picture pixel luminance standard value is the picture photo of pure white picture
The 50~70% of plain brightness.
8. a kind of backlight control apparatus characterized by comprising
Picture pixel luminance acquisition module, for obtaining current picture pixel brightness；
Backlight control module is control target for being held essentially constant value with the human eye perceived brightness under the conditions of certain environment,
Current picture pixel brightness, controls backlight illumination according to acquired in picture pixel luminance acquisition module；The people
The metric form of eye perceived brightness is the product of picture pixel brightness and backlight illumination；Backlight control module is specifically true according to the following formula
Determine the control target value BL of backlight illumination:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n environment item being presently in
The steady state value under part, PL indicate current picture pixel brightness；Or backlight control module specifically determines according to the following formula
The control target value BL of backlight illumination:
In formula, BLmaxIndicate the maximum backlight illumination that display equipment can reach, TLnIndicate the n environment item being presently in
The steady state value under part, PL indicate current picture pixel brightness.
9. device as claimed in claim 8, which is characterized in that the picture pixel brightness refers to the brightness value of each pixel in picture
The mean value of R, G of each pixel in mean value or finger drawing face, B component maximum value.
10. device as claimed in claim 8, which is characterized in that picture pixel luminance acquisition module is real by carrying out to present frame
Shi Tongji obtains current picture pixel brightness, or obtains current picture according to the picture pixel luma prediction of preceding several frames
Pixel intensity.
11. device as claimed in claim 10, which is characterized in that picture pixel luminance acquisition module is according to the pictures of preceding several frames
Pixel intensity is predicted to obtain current picture pixel brightness using Smoothing Forecasting or trend extropolation prediction technique.
12. device as claimed in claim 8, which is characterized in that the steady state value is preset human eye perceived brightness standard value；Or
Person, the steady state value are preset human eye perceived brightness standard value and the product for perceiving correction factor, the perception correction factor
The ratio of maximum value is adjusted for current backlight illumination user setting value and backlight illumination user.
13. device as claimed in claim 12, which is characterized in that the human eye perceived brightness standard value first passes through visual perception in advance
Experiment determines, or determines by the following method: it is bright to collect backlight of user under the conditions of certain environment by big data platform
Preference data is spent, and therefrom finds out the favorite backlight brightness values of user under the environmental condition, then with the backlight brightness values
Product with preset picture pixel luminance standard value is as the human eye perceived brightness standard value under the environmental condition.
14. device as claimed in claim 13, which is characterized in that the picture pixel luminance standard value is the picture of pure white picture
The 50~70% of pixel intensity.
15. a kind of display equipment, the backlight control apparatus including backlight and for being controlled backlight, feature exist
In the backlight control apparatus is any one of claim 8~14 backlight control apparatus.
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| CN107863083B (en) * | 2017-12-20 | 2019-12-13 | 惠科股份有限公司 | Driving method and driving device of display device |
| CN107978289B (en) * | 2017-12-20 | 2020-02-21 | 惠科股份有限公司 | Driving method and driving device of display device |
| TWI693590B (en) * | 2019-02-19 | 2020-05-11 | 大陸商北京集創北方科技股份有限公司 | Anti-flicker driving method, display device and information processing device of visible picture under strong light |
| CN114220399B (en) * | 2022-01-11 | 2023-03-24 | 深圳Tcl数字技术有限公司 | Backlight value control method and device, storage medium and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101383139A (en) * | 2008-06-27 | 2009-03-11 | 青岛海信电器股份有限公司 | Luminance control method for display screen |
| CN102467880A (en) * | 2010-11-10 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Display equipment and backlight control method thereof |
| CN105009195A (en) * | 2013-02-20 | 2015-10-28 | 富士胶片株式会社 | Liquid crystal display device |
| CN106297678A (en) * | 2016-09-08 | 2017-01-04 | 乐视控股（北京）有限公司 | Luminance regulating method and device |
| CN106782344A (en) * | 2016-12-20 | 2017-05-31 | 微鲸科技有限公司 | brightness adjusting method, device and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8243004B2 (en) * | 2003-03-10 | 2012-08-14 | Fergason Patent Properties, Llc | Apparatus and method for preparing, storing, transmitting and displaying images |
-
2017
- 2017-06-07 CN CN201710421933.1A patent/CN107437402B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101383139A (en) * | 2008-06-27 | 2009-03-11 | 青岛海信电器股份有限公司 | Luminance control method for display screen |
| CN102467880A (en) * | 2010-11-10 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Display equipment and backlight control method thereof |
| CN105009195A (en) * | 2013-02-20 | 2015-10-28 | 富士胶片株式会社 | Liquid crystal display device |
| CN106297678A (en) * | 2016-09-08 | 2017-01-04 | 乐视控股（北京）有限公司 | Luminance regulating method and device |
| CN106782344A (en) * | 2016-12-20 | 2017-05-31 | 微鲸科技有限公司 | brightness adjusting method, device and display device |
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