CN101192377A - Display device and its lamination control method - Google Patents
Display device and its lamination control method Download PDFInfo
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- CN101192377A CN101192377A CNA200810002000XA CN200810002000A CN101192377A CN 101192377 A CN101192377 A CN 101192377A CN A200810002000X A CNA200810002000X A CN A200810002000XA CN 200810002000 A CN200810002000 A CN 200810002000A CN 101192377 A CN101192377 A CN 101192377A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000003475 lamination Methods 0.000 title 1
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002459 sustained effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention relates to a display device and a brightness control method. The method comprises: a stage of driving a display device of a LCD substrate using a light source; a stage of detecting the brightness character data of the light source used for driving the LCD substrate; a stage of controlling brightness offset voltage based on the detected brightness character data of the light source, and outputting an object brightness value of the LCD substrate according to the initial value. Thereby, brightness difference caused by the offset time has no output brightness value variety of each time, so that the display device is provided with the effect that the user sight can be protected and same brightness can be sustained for certain time after the brightness value is set initially.
Description
Technical field
The present invention relates to a kind of display device, more particularly relate to a kind of display device and brightness control method of controlling brightness stability.
Background technology
Usually, the core display lcd (LiquidCrystalDisplay) of digital multimedia device is different with PDP (PlasmaDisplayPanel), FED (FieldEmissionDisplay) etc., self can not be luminous, therefore need evenly illuminate the light-emitting component of establishing in addition of whole LCD picture.As this element, the most backlight of main at present employing is cold-cathode fluorescence lamp (ColdCathodefluorescentLamp; CCFL), at TFT-LCD substrate rear side as backlight.
In the LCD display, brightness when beginning to drive and driving brightness afterwards in 30 minutes is variant.This is because the temperature characterisitic of the substrate cold-cathode fluorescence lamp (CCFL) that LCD display adopts, the cold-cathode fluorescent lantern festival self-heating that begins to drive, thereby part throttle characteristics changes, through behind the certain hour along with temperature stabilization, brightness also can be stablized.
In the conventional art, the brightness that display device causes the temperature characterisitic of cold-cathode fluorescence lamp (CCFL) changes does not do any control.Therefore, exist the user can feel at first from the brightness of display identification and the difference between the brightness after 30 minutes, along with the time can make user's eyes increase fatigue when lengthening brightness brightens, user's eyes can experience the problem of the symptom of deepening when extending the brightness reduction along with the time.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide: change in order to eliminate above-mentioned brightness, function to indicate or each cold-cathode fluorescence lamp (CCFL) characteristic of forming the LCD module by table look-up (LookupTable) are controlled display device and brightness control method { Display and method for control brightness} that brightness reaches the luminance voltage of the cold-cathode fluorescence lamp (CCFL) till stablizing.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of display device is characterized in that comprising: the display board that comprises light source; Store each time voltage, electric current and the light characteristic memory of data of the above-mentioned light source of each kind; Export the target brightness value of the initial time of above-mentioned display board, according to the light characteristic data of above-mentioned light source, the control part of control luminance compensation voltage; Export the luminance compensation circuit of above-mentioned luminance compensation voltage according to the control signal of above-mentioned control part.
Aforesaid display device is characterized in that above-mentioned display board comprises back side light source.
Aforesaid display device is characterized in that above-mentioned back side light source is at least one in the middle of cold-cathode fluorescence lamp (ColdCathodeFlourScentLamp) and the external electrode fluorescent lamp (ExternalElectrodeFlourscentLamp).
Aforesaid display device is characterized in that above-mentioned control part control compensation voltage, makes the target brightness value of above-mentioned display board have the same brightness value in each time.
Aforesaid display device is characterized in that the light characteristic data of above-mentioned storer according to each kind light source of being stored, and the algorithm of the initial stage luminance compensation magnitude of voltage of above-mentioned display board is calculated in utilization.
Aforesaid display device is characterized in that above-mentioned luminance compensation circuit comprises: the error amplifier that the voltage error of the desired value voltage of the light characteristic data of above-mentioned control part and detection is carried out amplification; The comparer that the signal of the output result of above-mentioned error amplifier and sawtooth signal generator is compared; Reach output result, produce the driving circuit of bucking voltage control signal according to above-mentioned comparer.
A kind of brightness control method of display device is characterized in that comprising: the stage that drives the display device of the LCD substrate that uses light source; Detection is used for stage of light characteristic data of the light source of above-mentioned LCD driven substrate; Reach light-source brightness performance data, control luminance compensation voltage, the stage of exporting the target brightness value of above-mentioned LCD substrate by initial time according to above-mentioned detection.
The brightness control method of aforesaid display device is characterized in that the light characteristic data setting target brightness value according to above-mentioned light source, makes above-mentioned output brightness keep certain value.
The brightness control method of aforesaid display device is characterized in that providing the bucking voltage value of each initial time for the light characteristic data export target brightness value according to above-mentioned light source.
The brightness control method of aforesaid display device, the bucking voltage value that it is characterized in that above-mentioned each initial time are to be foundation by the light characteristic data with above-mentioned light source, function and algorithm computation gained.
The brightness control method of aforesaid display device is characterized in that the light characteristic data of above-mentioned light source are carried out data base system with each time voltage, electric current and the light characteristic data of each light source kind.
The brightness control method of aforesaid display device is characterized in that above-mentioned light source is a back side light source.
The brightness control method of aforesaid display device is characterized in that above-mentioned back side light source is at least one in the middle of cold-cathode fluorescence lamp (ColdCathodeFlourscentLamp) and the external electrode fluorescent lamp (ExternalElectrodeFlourscentLamp).
The brightness control method of aforesaid display device is characterized in that the target brightness value of above-mentioned LCD substrate is kept identical value at each initial time.
The invention has the beneficial effects as follows: in display device of the present invention; compensate the luminance difference of each time; therefore there is not the variation of each time output brightness value; have user's eyesight that LCD display is watched in protection, also can keep the effect of same brightness through the brightness value of initial setting behind the certain hour.
Description of drawings
Fig. 1 is for showing by initial stage Control of Voltage of the present invention the exemplary plot of the brightness of stabilization LCD substrate;
Fig. 2 is according to cold-cathode fluorescence lamp of the present invention (CCFL) characteristic, the inner composition diagram of the display device of control initial stage voltage;
Fig. 3 is for specializing the exemplary plot according to the luminance compensation circuit of cold-cathode fluorescence lamp (CCFL) characteristic of the embodiment of the invention;
Fig. 4 is an employing initial stage Control of Voltage of the present invention, the precedence diagram of the method for the brightness of stabilization LCD substrate.
The explanation of major part symbol in the accompanying drawing
100, power suppling part 200, control part
300, storer 400, image processing portion
500, data drive circuit 600, luminance compensation circuit
700, display board (CCFL) 610, driving circuit
620, comparer 630, error amplifier
Embodiment
Below introduce, make to be more readily understood purpose of the present invention and characteristics and advantage by concrete.Introduce when of the present invention, when the concrete introduction of well-known correlation function or composition upsets main idea of the present invention, will omit its introduction.
Fig. 1 is for showing by initial stage Control of Voltage of the present invention the exemplary plot of the brightness of stabilization LCD substrate.
The back area source of LCD substrate mainly adopt cold-cathode fluorescence lamp (ColdCathodeFlourscentLamp, CCFL) and external electrode fluorescent lamp (ExternalElectrodeFlourscentLamp, EEFL).The cold-cathode fluorescence lamp of embodiments of the invention (CCFL) is for being provided with the fluorescent light that just can light without the heating of white heat line, be provided with electrode in the glass tube both sides, inside charges into a certain amount of mercury and mixed gass such as argon, neon, and glass tube internal table mask has and the identical structural principle of general fluorescent light of smearing fluorophor.
Especially, cold-cathode fluorescence lamp (CCFL) has nonlinear characteristic, and the initial stage electric current can increase and increase along with voltage, and after-current increases and reduces along with voltage but lamp is opened.
Therefore, initial stage CCFL needs huge voltage.After being opened, lamp uses littler driven lamp.
In the display device, during the initial provisioning power supply, it is different and different according to the characteristic of the cold-cathode fluorescence lamp (CCFL) of LCD substrate to reach the required time of normal brightness.Among Fig. 1 (a), if to the display device power supply, then the in the initial stage of that the brightness of LCD substrate improves gradually, after 60～70min, reaches normal brightness according to the characteristic of the cold-cathode fluorescence lamp (CCFL) of LCD substrate.Among Fig. 1 (b), if to the display device power supply, then the in the initial stage of that the high brightness of LCD substrate reduces gradually according to cold-cathode fluorescence lamp (CCFL) characteristic of LCD substrate, and after 60～70min, it is stable that brightness reaches.Among Fig. 1 of the present invention (c), the magnitude of voltage of control cold-cathode fluorescence lamp (CCFL) according to cold-cathode fluorescence lamp (CCFL) characteristic of LCD substrate, is stablized the brightness value of output initial stage LCD substrate in the luminance compensation circuit.
Fig. 2 is according to cold-cathode fluorescence lamp of the present invention (CCFL) characteristic, the inner composition diagram of the display device of control initial stage voltage.
As shown in the figure, display device of the present invention comprises power suppling part 100, control part 200, storer 300, image processing portion 400, data drive circuit 500, luminance compensation circuit 600, display board 700 (CCFL).
At this, power suppling part 100 provides the overall driving voltage of display device of the present invention and provides luminance compensation voltage according to cold-cathode fluorescence lamp (CCFL) characteristic.
The power drives display device that control part 200 adopts power suppling part 100 to apply, the performance data of the cold-cathode fluorescence lamp (CCFL) of detection display board.According to the performance data of the cold-cathode fluorescence lamp (CCFL) that detects, control voltage, thereby stablize the brightness value of output initial stage LCD substrate.And control part 200 produces the synchronizing signal of input image.
According to characteristics of the present invention, the brightness of the initial stage LCD substrate of storer 300 each LCD substrate light source kinds of storage and the performance data of magnitude of voltage.According to embodiments of the invention, brightness and magnitude of voltage as the initial stage LCD substrate of the cold-cathode fluorescence lamp (CCFL) of back side light source are stored in the storer 300 with (LookupTable) form of tabling look-up, and the algorithm of the initial stage luminance compensation magnitude of voltage of LCD substrate is calculated in utilization according to the performance data of each light source kind.
After image processing portion 400 receives the image data of input, carry out D/A frequency conversion and the output of decoding back.At this moment, the signal same period that control part 200 is produced reaches the output of consistent back with the synchronizing signal of input image.
Data drive circuit 500 provides transmission line to the signal of video signal data by image processing portion 400 output, to the injection lines of display board successively, select the injection pulse that applies of a property.And, data drive circuit 500 and above-mentioned injection pulse apply actual synchronization produce each horizontal injection line the pixel data pulses of corresponding signal of video signal, the pulse that produces is applied on the data line respectively.And each data pulse has the pulse voltage of the intensity level that embodies by signal of video signal.Data drive circuit 500 comprises according to the current driving circuit that produces the opposite drive current of big or small equidirectional in above-mentioned transmission line.
Luminance compensation circuit 600 control voltages, thus the luminance compensation value is compensated the brightness of the initial stage LCD substrate of each light source kind and the performance data of magnitude of voltage, the brightness value of stable maintenance control part 200 outputs.
Display board 700 (CCFL) forms the light source utilize cold-cathode fluorescence lamp (CCFL), compensates voltage according to the characteristic of above-mentioned cold-cathode fluorescence lamp (CCFL), thereby shows the image by data drive circuit 500 transmission.
Fig. 3 is for specializing the exemplary plot according to the luminance compensation circuit of cold-cathode fluorescence lamp (CCFL) characteristic of the embodiment of the invention.
The luminance compensation electric circuit inspection of embodiments of the invention flows through the initial stage electric current of cold-cathode fluorescence lamp (CCFL), initial stage light characteristic according to cold-cathode fluorescence lamp (CCFL), when the initial stage, electric current was below or above desired value, in control part, adjust voltage by the luminance compensation circuit, thus the brightness of stable maintenance cold-cathode fluorescence lamp (CCFL).
Luminance compensation circuit 600 of the present invention comprises: driving circuit 610, comparer 620, error amplifier 630.The initial stage light characteristic of the cold-cathode fluorescence lamp (CCFL) of the display board 700 that is provided by control part 200 (MicroProcessorControl) is provided respectively luminance compensation circuit 600, behind the voltage and certain target voltage values through 630 detections of error amplifier, voltage error is carried out amplification.With the output result of error amplifier 630, after comparing with the signal of sawtooth signal generator, it is produced voltage control signal by driving circuit 610 along with the output of comparer 620 in the comparer 620.
Fig. 4 is an employing initial stage Control of Voltage of the present invention, the precedence diagram of the method for the brightness of stabilization LCD substrate.
Display device to the LCD substrate of the back side light source that adopts cold-cathode fluorescence lamp (CCFL) applies driving voltage, as the S401 stage among the figure.Detect the light characteristic data of the cold-cathode fluorescence lamp (CCFL) of LCD driven substrate and each light source kind, as the S402 stage among the figure.According to respective sources, promptly the light characteristic of each initial time of cold-cathode fluorescence lamp (CCFL) is controlled the luminance compensation magnitude of voltage for output voltage, as the S403 stage among the figure.At this moment, each initial time light characteristic according to cold-cathode fluorescence lamp (CCFL) improves voltage in the early stage, reduces voltage then gradually, and the output brightness stability is kept; Or the employing initial stage from low-voltage, through the mode that improves gradually behind the certain hour, stable maintenance output brightness.Judge whether the output brightness of energy voltage-controlled cold-cathode fluorescence lamp of each time of stable maintenance (CCFL), as the S404 stage among the figure.Judged result is can not stable maintenance the time, moves to the S403 stage.When judged result was the energy stable maintenance, by carrying out each initial time Control of Voltage according to the light characteristic of light source, the output brightness stability of the cold-cathode fluorescence lamp of LCD substrate (CCFL) was kept certain value, as the S405 stage among the figure.
Simultaneously, the term (terminology) that the present invention uses is to consider the function among the present invention and the term that defines, may be because of technician or the convention generation difference of being engaged in corresponding field, so its definition should be based on full content of the present invention.
The above-described the foregoing description that the invention is not restricted to can carry out various deformation and change by understanding in the industry, and all employings are equal to replaces or technical scheme that equivalent transformation obtained, all drops in protection scope of the present invention.
Claims (14)
1. the brightness control method of display device is characterized in that comprising: the stage that drives the display device of the LCD substrate that uses light source; Detection is used for stage of light characteristic data of the light source of above-mentioned LCD driven substrate; Reach light-source brightness performance data, control luminance compensation voltage, the stage of exporting the target brightness value of above-mentioned LCD substrate by initial time according to above-mentioned detection.
2. the brightness control method of display device according to claim 1 is characterized in that the light characteristic data setting target brightness value according to above-mentioned light source, makes above-mentioned output brightness keep certain value.
3. the brightness control method of display device according to claim 2 is characterized in that providing the bucking voltage value of each initial time for the light characteristic data export target brightness value according to above-mentioned light source.
4. the brightness control method of display device according to claim 3, the bucking voltage value that it is characterized in that above-mentioned each initial time are to be foundation by the light characteristic data with above-mentioned light source, function and algorithm computation gained.
5. the brightness control method of display device according to claim 1 is characterized in that the light characteristic data of above-mentioned light source are carried out data base system with each time voltage, electric current and the light characteristic data of each light source kind.
6. the brightness control method of display device according to claim 1 is characterized in that above-mentioned light source is a back side light source.
7. the brightness control method of display device according to claim 6 is characterized in that above-mentioned back side light source is at least one in the middle of cold-cathode fluorescence lamp and the external electrode fluorescent lamp.
8. the brightness control method of display device according to claim 1 is characterized in that the target brightness value of above-mentioned LCD substrate is kept identical value at each initial time.
9. display device is characterized in that comprising: the display board that comprises light source; Store each time voltage, electric current and the light characteristic memory of data of the above-mentioned light source of each kind; Export the target brightness value of the initial time of above-mentioned display board, according to the light characteristic data of above-mentioned light source, the control part of control luminance compensation voltage; Export the luminance compensation circuit of above-mentioned luminance compensation voltage according to the control signal of above-mentioned control part.
10. display device according to claim 9 is characterized in that above-mentioned display board comprises back side light source.
11. display device according to claim 10 is characterized in that above-mentioned back side light source is at least one in the middle of cold-cathode fluorescence lamp and the external electrode fluorescent lamp.
12. display device according to claim 9 is characterized in that above-mentioned control part control compensation voltage, makes the target brightness value of above-mentioned display board have the same brightness value in each time.
13. display device according to claim 9 is characterized in that the light characteristic data of above-mentioned storer according to each kind light source of being stored, the algorithm of the initial stage luminance compensation magnitude of voltage of above-mentioned display board is calculated in utilization.
14. display device according to claim 9 is characterized in that above-mentioned luminance compensation circuit comprises: the error amplifier that the voltage error of the desired value voltage of the light characteristic data of above-mentioned control part and detection is carried out amplification; The comparer that the signal of the output result of above-mentioned error amplifier and sawtooth signal generator is compared; Reach output result, produce the driving circuit of bucking voltage control signal according to above-mentioned comparer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070088193 | 2007-08-31 | ||
| KR1020070088193A KR101366271B1 (en) | 2007-08-31 | 2007-08-31 | Display and method for control brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101192377A true CN101192377A (en) | 2008-06-04 |
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ID=39487331
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810002000XA Pending CN101192377A (en) | 2007-08-31 | 2008-01-02 | Display device and its lamination control method |
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| Country | Link |
|---|---|
| KR (1) | KR101366271B1 (en) |
| CN (1) | CN101192377A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661708B (en) * | 2008-08-26 | 2014-07-23 | 群创光电股份有限公司 | Display, driving device and driving method thereof |
| CN104008732A (en) * | 2014-05-14 | 2014-08-27 | 陆俊 | Method and system for adjusting brightness of LED backlight of liquid crystal display |
| CN105575340A (en) * | 2016-03-07 | 2016-05-11 | 合一智能科技（深圳）有限公司 | Backlight brightness control system and method |
| CN105981092A (en) * | 2014-02-13 | 2016-09-28 | 索尼公司 | Light-emitting element drive circuit, display device, and A-D conversion circuit |
| CN110910833A (en) * | 2019-12-27 | 2020-03-24 | 武汉天马微电子有限公司 | Display panel, brightness control method of display panel and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4612452B2 (en) | 2005-03-30 | 2011-01-12 | Ｎｅｃディスプレイソリューションズ株式会社 | Liquid crystal display device |
| JP4754280B2 (en) | 2005-06-24 | 2011-08-24 | 富士重工業株式会社 | Luminance control system for light emitting device |
-
2007
- 2007-08-31 KR KR1020070088193A patent/KR101366271B1/en not_active Expired - Fee Related
-
2008
- 2008-01-02 CN CNA200810002000XA patent/CN101192377A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661708B (en) * | 2008-08-26 | 2014-07-23 | 群创光电股份有限公司 | Display, driving device and driving method thereof |
| CN105981092A (en) * | 2014-02-13 | 2016-09-28 | 索尼公司 | Light-emitting element drive circuit, display device, and A-D conversion circuit |
| CN105981092B (en) * | 2014-02-13 | 2019-09-06 | 索尼半导体解决方案公司 | Light emitting element driving circuit, display device and A/D conversion circuit |
| CN104008732A (en) * | 2014-05-14 | 2014-08-27 | 陆俊 | Method and system for adjusting brightness of LED backlight of liquid crystal display |
| CN104008732B (en) * | 2014-05-14 | 2016-03-09 | 陆俊 | A kind of LED backlight source for liquid crystal display brightness adjusting method and system |
| CN105575340A (en) * | 2016-03-07 | 2016-05-11 | 合一智能科技（深圳）有限公司 | Backlight brightness control system and method |
| WO2017152614A1 (en) * | 2016-03-07 | 2017-09-14 | 合一智能科技（深圳）有限公司 | System and method for controlling luminance of backlight source |
| CN110910833A (en) * | 2019-12-27 | 2020-03-24 | 武汉天马微电子有限公司 | Display panel, brightness control method of display panel and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090022653A (en) | 2009-03-04 |
| KR101366271B1 (en) | 2014-02-20 |
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