CN1873758A - Self-adaptive control unit and method for display quality of TV - Google Patents
Self-adaptive control unit and method for display quality of TV Download PDFInfo
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- CN1873758A CN1873758A CN 200610060158 CN200610060158A CN1873758A CN 1873758 A CN1873758 A CN 1873758A CN 200610060158 CN200610060158 CN 200610060158 CN 200610060158 A CN200610060158 A CN 200610060158A CN 1873758 A CN1873758 A CN 1873758A
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Abstract
The invention discloses a LCD TV display quality self-adapting adjusting device and method. And the adjusting device comprises LCD display module, and is characterized in also comprising an information collector able to collect related parameters, and a collected information analyzing and processing CPU, where the signals of the information collector are connected with the CPU, and the CPU controls the backlight source brightness adjustment port connected with the LCD display module. And it can better implement backlight source brightness control. Thus, it can improve subjective image quality and achieve energy saving purpose.
Description
Technical field the present invention relates to the television display technology field, more specifically says the regulation technology that relates to the LCD TV display quality.
The present LCD TV of background technology is being subjected to consumer's favor, progressively enters among the ordinary consumer man.But, because LCD is the passive-type display device, come displayed image by liquid crystal as controlled light valve, because the restriction of liquid crystal characteristic, light valve does not reach desirable closed condition, promptly gives complete black signal yet, and the LCD screen also is to have faint light to send, under the lower situation of ambient brightness, the bad phenomenon of black level performance is obvious especially.For specific LCD display module, have only the back light source brightness of reduction could improve the black level performance.Therefore, the LCD TV has the following disadvantages now: 1, under normal family environment for use, particularly under the situation that evening or ambient brightness are lower, brightness is too high, and eyes are tired easily; Part dark in the image can not deceive, and the black level performance is bad, causes visual stereovision not strong, and image quality is undesirable.2, the consumed power substantially constant of LCD display, the power consumption of backlight is not regulated according to different situations, generally all is set to peak power, not only do not meet energy-conservation theory, and too bright meeting backlight causes the problem of display quality.The LCD TV that has adopts the rearrangeable switch that the control backlight illumination is set to adjust back light source brightness, and still, this method of adjustment needs not very convenient by manual adjustment, seldom has the consumer to use this adjustment function.
One of summary of the invention technical matters to be solved by this invention provides a kind of regulating device that can regulate the LCD TV display quality automatically.
The present invention includes the LCD display module, it is characterized in that, be provided with one and can collect the information collector that helps the correlation parameter of back light source brightness adjustment, an energy carries out the CPU of analyzing and processing to the information of collecting, the information collector signal connects CPU, and the back light source brightness of CPU control linkage LCD display module is adjusted port.
Described information collector comprise one can the testing environment luminance brightness optical sensor.
Described optical sensor comprises a photoresistance and accessory circuit.Certainly optical sensor also can be other sensor devices and accessory circuit.
Described information collector is that comprise can be to the extraction module of the image content feature extraction information of picture intelligence.
Two of technical matters to be solved by this invention provides a kind of method that can regulate the LCD TV display quality automatically.
Described method may further comprise the steps:
A, collection help some parameters to the back light source brightness adjustment;
B, the parameter of collecting is sent to the CPU that presets analysis and processing program;
The back light source brightness of LCD display module is adjusted in C, CPU output control information.
The parameter of collecting in the described steps A can be the parameter of environmental light brightness.
The parameter of collecting in the described steps A can be the parameter of picture intelligence.
The parameter of collecting in the described steps A had both comprised the parameter of environmental light brightness, comprised the parameter of picture intelligence again.
The control information of CPU output is an information of voltage among the described step C.
The control information of CPU output is PWM (width modulation) pulse among the described step C.
The present invention can realize the control of back light source brightness preferably owing to adopt the way of control automatically to realize the self-adaptation adjustment, can eliminate the too high or too low problem of bringing of back light source brightness.Therefore, not only subjective image quality can be improved, and, can reach purpose of energy saving.
Description of drawings Fig. 1 is the regulating device composition frame chart of the embodiment of the invention 1.
Fig. 2 is the regulating device composition frame chart of the embodiment of the invention 2.
Fig. 3 is the CPU analyzing and processing process flow diagram of the embodiment of the invention 1.
Fig. 4 is the CPU analyzing and processing process flow diagram of the embodiment of the invention 2.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment
Embodiment 1
In the present embodiment, regulating device comprises the LCD display module, photoresistance or other sensor devices and accessory circuit, CPU.Photoresistance or other sensor devices and accessory circuit are used for the detection for environmental light brightness, and photoresistance or other sensor devices and accessory circuit are sent to the parameter of collecting the CPU that presets analysis and processing program; CPU obtains the information of environmental light brightness, and then, according to the controlled quentity controlled variable of optimized Algorithm output back light source brightness, different LCD display modules adopts different controlled quentity controlled variables, can be voltage or pwm pulse.
The analysis and processing program flow process according to the controlled quentity controlled variable of optimized Algorithm output back light source brightness that presets among the CPU is as follows:
Start back per minute circulation primary obtains the environment bright degrees of data, then the luminance brightness data is analyzed, and is higher than 200LUX, and back light source brightness adjusts to 100%; Be higher than 100LUX less than 200LUX, back light source brightness adjusts to 95%; Be higher than 50LUX less than 100LUX, back light source brightness adjusts to 90%; Be higher than 10LUX less than 50LUX, back light source brightness adjusts to 80%; Less than 10LUX, back light source brightness adjusts to 70%.For avoiding occurring flicker, in case determine and need regulate, will be at interval with 200-300MS, adjust 1%, 2% or 4% at every turn, from high to low or from low to high, all adopt the mode of approaching gradually to adjust.
Embodiment 2
Present embodiment comprises the LCD display module, extraction module, CPU.Extraction module can be to the image content feature extraction information of picture intelligence.Extraction module utilizes the image content feature extraction unit of image enhancement inside modules to extract information such as the histogram of image content and mean value, and just correlation parameter is sent to the CPU that presets analysis and processing program then; Then, according to the controlled quentity controlled variable of optimized Algorithm output back light source brightness, different LCD display modules adopts different controlled quentity controlled variables, can be voltage or pwm pulse.
The analysis and processing program flow process according to the controlled quentity controlled variable of optimized Algorithm output back light source brightness that presets among the CPU is as follows:
After the start, extract histogram information, mean value, maximin, the deviate of every frame image.Estimate the dark space ratio Pdk under the present status then.And with Pdk with compare with the dark space ratio Cdk that presets, regulate if Pdk, does not carry out backlight less than Cdk, carry out common image quality enhancement process; If Pdk is greater than Cdk, calculate and be provided with backlight and reduce parameter Δ R, calculate and be provided with delay parameter Td, carry out the adjustment control of adaptive backlight source according to Δ R and Td again, carry out luminance compensation and white level and extend the image quality reduction that causes with compensate for backlight brightness decline.
Claims (10)
1, the self-adaptive regulating of LCD TV display quality, it is characterized in that, comprise that can be collected an information collector that helps the correlation parameter of back light source brightness adjustment, an energy carries out the CPU of analyzing and processing to the information of collecting, the information collector signal connects CPU, and the back light source brightness of CPU control linkage LCD display module is adjusted port.
2, according to right 1 described self-adaptive regulating, it is characterized in that: described information collector comprise one can the testing environment luminance brightness optical sensor.
3, according to right 2 described self-adaptive regulatings, it is characterized in that: described optical sensor comprises a photoresistance and accessory circuit.
4, according to right 1 described self-adaptive regulating, it is characterized in that: described information collector comprise one can be to the extraction module of the image content feature extraction information of picture intelligence.
5, the adaptive regulation method of LCD TV display quality may further comprise the steps:
A, collection help some parameters to the back light source brightness adjustment;
B, the parameter of collecting is sent to the CPU that presets analysis and processing program;
The back light source brightness of LCD display module is adjusted in C, CPU output control information.
6, according to right 5 described adaptive regulation methods, it is characterized in that: the parameter of collecting in the described steps A can be the parameter of environmental light brightness.
7, according to right 5 described adaptive regulation methods, it is characterized in that: the parameter of collecting in the described steps A can be the parameter of picture intelligence.
8, according to right 5 described adaptive regulation methods, it is characterized in that: the parameter of collecting in the described steps A had both comprised the parameter of environmental light brightness, comprised the parameter of picture intelligence again.
9, according to right 5 described adaptive regulation methods, it is characterized in that: the control information of CPU output is an information of voltage among the described step C.
10, according to right 5 described adaptive regulation methods, it is characterized in that: the control information of CPU output is a pwm pulse among the described step C.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100601583A CN100418133C (en) | 2006-03-31 | 2006-03-31 | Self-adaptive control unit and method for display quality of TV |
| HK07105974.2A HK1098568A1 (en) | 2006-03-31 | 2007-06-06 | An adaptive adjusting device for lcd tv display quality and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100601583A CN100418133C (en) | 2006-03-31 | 2006-03-31 | Self-adaptive control unit and method for display quality of TV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1873758A true CN1873758A (en) | 2006-12-06 |
| CN100418133C CN100418133C (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100601583A Active CN100418133C (en) | 2006-03-31 | 2006-03-31 | Self-adaptive control unit and method for display quality of TV |
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| Country | Link |
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| CN (1) | CN100418133C (en) |
| HK (1) | HK1098568A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148020A (en) * | 2010-02-10 | 2011-08-10 | 元太科技工业股份有限公司 | Light-to-dark transition display device, display and brightness adjusting method |
| CN102339590A (en) * | 2010-07-27 | 2012-02-01 | 英华达（上海）科技有限公司 | Power-saving device and method for electronic system |
| CN106023885A (en) * | 2016-08-12 | 2016-10-12 | 深圳市灵星雨科技开发有限公司 | Automatic brightness adjusting method for LED display screen |
| CN106297724A (en) * | 2015-06-23 | 2017-01-04 | 展讯通信（上海）有限公司 | Mobile terminal and control method thereof |
| WO2019028788A1 (en) * | 2017-08-10 | 2019-02-14 | 深圳益创信息科技有限公司 | Smart playback method and smart television |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393728A (en) * | 2001-06-22 | 2003-01-29 | 神达电脑股份有限公司 | Correcting method of optical sensor for automatic brightness control of LCD |
| KR20050023232A (en) * | 2002-04-26 | 2005-03-09 | 한국전자통신연구원 | Apparatus and method for reducing power consumption by adjusting backlight and adapting visual signal |
| CN1519623A (en) * | 2003-01-20 | 2004-08-11 | 英保达股份有限公司 | Device and method capable of adjusting brightness of backlight in display |
-
2006
- 2006-03-31 CN CNB2006100601583A patent/CN100418133C/en active Active
-
2007
- 2007-06-06 HK HK07105974.2A patent/HK1098568A1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148020A (en) * | 2010-02-10 | 2011-08-10 | 元太科技工业股份有限公司 | Light-to-dark transition display device, display and brightness adjusting method |
| CN102339590A (en) * | 2010-07-27 | 2012-02-01 | 英华达（上海）科技有限公司 | Power-saving device and method for electronic system |
| CN106297724A (en) * | 2015-06-23 | 2017-01-04 | 展讯通信（上海）有限公司 | Mobile terminal and control method thereof |
| CN106023885A (en) * | 2016-08-12 | 2016-10-12 | 深圳市灵星雨科技开发有限公司 | Automatic brightness adjusting method for LED display screen |
| WO2019028788A1 (en) * | 2017-08-10 | 2019-02-14 | 深圳益创信息科技有限公司 | Smart playback method and smart television |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1098568A1 (en) | 2007-07-20 |
| CN100418133C (en) | 2008-09-10 |
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Owner name: LCD SKYWORTH (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD. Effective date: 20090327 |
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Effective date of registration: 20090327 Address after: First floor, SKYWORTH science and technology industrial complex, Tong Tau Industrial Zone, Shiyan street, Shiyan City, Guangdong, Shenzhen, Baoan District Patentee after: Skyworth LCD Device (Shenzhen) Co., Ltd. Address before: Guangdong city of Shenzhen province Nanshan District Gao Xin Road SKYWORTH building A13-16 Patentee before: Chuangwei-RGB Electronic Co., Ltd., Shenzhen City |
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Effective date of registration: 20160205 Address after: 518057 Guangdong city of Shenzhen province Nanshan District Gao Xin Road SKYWORTH building A block 13-16 Patentee after: Shenzhen Skyworth-RGB Electronics Co., Ltd. Address before: 518000, Shenzhen, Guangdong province Baoan District Shiyan street, Tong Tau Industrial Zone, SKYWORTH science and Technology Industrial Park, the first floor of the building Patentee before: Skyworth LCD Modules (Shenzhen) Co., Ltd. |