CN102637410A - Processing method and device of backlight brightness control signal - Google Patents
Processing method and device of backlight brightness control signal Download PDFInfo
- Publication number
- CN102637410A CN102637410A CN2011100368109A CN201110036810A CN102637410A CN 102637410 A CN102637410 A CN 102637410A CN 2011100368109 A CN2011100368109 A CN 2011100368109A CN 201110036810 A CN201110036810 A CN 201110036810A CN 102637410 A CN102637410 A CN 102637410A
- Authority
- CN
- China
- Prior art keywords
- threshold range
- environment light
- indoor
- ambient light
- parameter
- 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.)
- Granted
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a processing method and a processing device of a backlight brightness control signal, and relates to the technical field of backlight source control. The processing method of the backlight brightness control signal comprises the steps of: acquiring an environment light threshold range list, an outdoor environment parameter and an indoor environment light signal parameter; determining the current environment light threshold range according to the outdoor environment parameter; determining whether the indoor environment light signal parameter is in the current environment light threshold range; carrying out backlight control processing according to the indoor environment light signal parameter if the indoor environment light signal parameter is within the current environment light threshold range; and carrying out linear conversion on the indoor environment light signal parameter if the indoor environment light signal parameter is not within the current environment light threshold range, and thus the indoor environment light signal parameter after the conversion is within the current environment light threshold range. By adopting the processing method and the processing device of the backlight brightness control signal, provided by the invention, the error regulation probability of the backlight brightness signal can be lowered, and the display image quality can be improved.
Description
Technical Field
The present invention relates to the field of backlight control technologies, and in particular, to a method and an apparatus for processing a backlight brightness control signal.
Background
With the development of scientific technology, LEDs (light emitting diodes) are becoming new backlights of lcd tvs. Compared with a Cold Cathode Fluorescent Light (CCFL) backlight, an LED backlight has the characteristics of a wide color gamut, low power consumption, and the like. However, in order to further reduce power consumption, a method of adjusting the brightness of the backlight according to the intensity of ambient light is often adopted in the prior art.
Currently, the control system of the backlight generally comprises: the LED backlight driving module comprises a light sensing module, a backlight source control module and an LED backlight driving module; the light sensing module is used for collecting ambient light signals; the backlight source control module is used for controlling the LED backlight driving module according to the ambient light signal. However, in daily life, a fluorescent lamp is generally used for illumination. Because the wavelength of the daylight lamp light is short, the light sensing module usually has a large error when identifying the daylight lamp light. Therefore, the light in the room is very strong, and the ambient light signal collected by the light sensing module is weak. In this case, the backlight control module may generate an erroneous LED backlight control. In addition, if the light sensing window of the light sensing module is blocked by mistake or the like, the light sensing module can also change the light signal of the ambient environment collected by the light sensing module, so that the LED backlight control module generates wrong operation.
Thus, in the process of implementing the backlight brightness control signal, the inventor finds that the following problems exist in the prior art:
in the prior art, the backlight control module performs backlight control and adjusts the backlight brightness signal only through the ambient light signal collected by the light sensing module, so that the backlight brightness signal is easily adjusted by mistake, thereby affecting the quality of the display picture.
Disclosure of Invention
The embodiment of the invention provides a method and a device for processing a backlight brightness control signal, and in order to achieve the purpose, the embodiment of the invention adopts the following technical scheme:
a method for processing a backlight brightness control signal comprises the following steps:
acquiring an ambient light threshold range list, outdoor ambient parameters and indoor ambient light signal parameters;
determining a current ambient light threshold range according to the outdoor ambient parameters;
judging whether the indoor environment light signal parameter is in the current environment light threshold range;
if the indoor environment light signal parameter is in the current environment light threshold range, performing backlight control processing according to the indoor environment light signal parameter;
and if the indoor environment light signal parameter is not in the current environment light threshold range, performing linear transformation on the indoor environment light signal parameter to enable the transformed indoor environment light signal parameter to be in the current environment light threshold range.
A device for processing a backlight brightness control signal, comprising:
the parameter acquisition unit is used for acquiring an ambient light threshold range list, outdoor ambient parameters and indoor ambient light signal parameters;
a threshold range determining unit, configured to determine a current ambient light threshold range according to the outdoor environment parameter;
the judging unit is used for judging whether the indoor environment light signal parameter is in the current environment light threshold range;
the backlight control unit is used for carrying out backlight control processing according to the indoor environment light signal parameter if the indoor environment light signal parameter is in the current environment light threshold range;
and the parameter processing unit is used for performing linear transformation on the indoor environment light signal parameter if the indoor environment light signal parameter is not in the current environment light threshold range, so that the transformed indoor environment light signal parameter is in the current environment light threshold range.
According to the method and the device for processing the backlight brightness control signal, provided by the embodiment of the invention, an ambient light threshold range list, an outdoor ambient parameter and an indoor ambient light signal parameter are obtained; determining a current ambient light threshold range according to the outdoor ambient parameters; judging whether the indoor environment light signal parameter is in the current environment light threshold range; if the indoor environment light signal parameter is in the current environment light threshold range, performing backlight control processing according to the indoor environment light signal parameter; and if the indoor environment light signal parameter is not in the current environment light threshold range, performing linear transformation on the indoor environment light signal parameter to enable the transformed indoor environment light signal parameter to be in the current environment light threshold range. In the embodiment of the invention, the ambient light threshold range list, the outdoor ambient parameter and the indoor ambient light signal parameter are comprehensively considered, so that the misadjustment probability of the backlight source control module on the backlight brightness signal is greatly reduced, and the display picture quality is improved.
Drawings
Fig. 1 is a flowchart of a method for processing a backlight brightness control signal according to an embodiment of the present invention;
FIG. 2 is a flowchart of another method for processing a backlight luminance control signal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for processing a backlight brightness control signal according to an embodiment of the present invention.
Detailed Description
The following describes a method and an apparatus for processing a backlight brightness control signal according to an embodiment of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1, a method for processing a backlight brightness control signal according to an embodiment of the present invention is provided; the method comprises the following steps:
101: acquiring an ambient light threshold range list, outdoor ambient parameters and indoor ambient light signal parameters; wherein the list of ambient light threshold ranges comprises: an ambient light threshold range list corresponding to weather conditions and an ambient light threshold range list corresponding to date and time; the outdoor environment parameters include: outdoor weather parameters, date and time parameters; the indoor ambient light signal parameters include: indoor ambient light brightness value.
102: determining a current ambient light threshold range according to the outdoor ambient parameters;
103: judging whether the indoor environment light signal parameter is in the current environment light threshold range;
104: if the indoor environment light signal parameter is in the current environment light threshold range, performing backlight control processing according to the indoor environment light signal parameter;
105: and if the indoor environment light signal parameter is not in the current environment light threshold range, performing linear transformation on the indoor environment light signal parameter to enable the transformed indoor environment light signal parameter to be in the current environment light threshold range.
As shown in fig. 2, a method for processing a backlight brightness control signal according to an embodiment of the present invention includes:
201: and presetting the ambient light threshold range list. For example: setting the ambient light threshold range list to include: ambient light threshold range list (Y) corresponding to weather conditionsWeather i，YWeather of i +1) I is not less than 1; ambient light threshold range list (Y) corresponding to date and timeTime j，YTime j +1) And j is not less than 0. Wherein,
202: acquiring an ambient light threshold range list, outdoor ambient parameters and indoor ambient light signal parameters; wherein the list of ambient light threshold ranges comprises: ambient light threshold range list (Y) corresponding to weather conditionsi Weather (weather)，YWeather of i +1) And a list of ambient light threshold ranges (Y) corresponding to dates and timesTime j，YTime j +1) (ii) a The outdoor environment parameters include: outdoor weather parameters, date and time parameters; the indoor ambient light signal parameters include: indoor ambient light brightness value y.
It should be noted that the outdoor environment parameters are obtained through a network module; the indoor environment light signal parameters are obtained through the light sensing module.
203: determining a current ambient light threshold range according to the outdoor ambient parameters; specifically, according to the outdoor weather parameter, the corresponding ambient light threshold range list (Y) is determinedWeather i，YWeather of i +1) (ii) a According to the date and time parameters, determining the environment corresponding to the date and time parametersLight threshold range list (Y)Time j，YTime j +1)。
204: judging whether the indoor environment light signal parameter y is in the current environment light threshold range; specifically, it is determined whether Y belongs to (Y)Time j，YTime j +1)。
205: if the indoor environment light signal parameter y is in the current environment light threshold range, performing backlight control processing according to the indoor environment light signal parameter; specifically, if Y ∈ (Y)Time j，Yj+1 Time) Then the LED backlight control signal f (y) is generated according to the actual value of y.
206: and if the indoor environment light signal parameter y is not in the current environment light threshold range, performing linear transformation on the indoor environment light signal parameter to enable the transformed indoor environment light signal parameter to be in the current environment light threshold range. In particular if
Then Y is transformed such that g (Y) e (Y) after the transformationTime j，YTime j +1) The LED backlight control signal is f (g (y));
wherein the transformation algorithm for transforming y into g (y) is as follows:
suppose a is 2 (Y)Time j +1-YTime j)/YTime j +1+YTime j
Then g (Y) ═ YTime j+y×a
The principle of the conversion method is that indoor environment light signal parameters y are processed through normalization; converting a current indoor ambient light signal parameter to a list of preset ambient light threshold ranges (Y)Time j，YTime j +1) Within.
For example: if the actual brightness value of the current ambient light is Y0, the light sensing module senses the light when the light sensing module is blocked and the light sensing module is missensedThe ambient brightness Y obtained by the module can be considered small, or equal to 0, with Y < Y0 being evident. With the algorithm of the present invention, the LED backlight control signal is f (g (Y)) ═ f (Y)Time j) (ii) a In the prior art, the LED backlight control signal is f (y) ═ f (0). Compared with the two, obviously, the backlight control signal of the algorithm of the invention is closer to the actual situation.
If the actual brightness value of the current ambient light is Y0, the indoor ambient light measured by the light sensing module is lower than the outdoor ambient light range when the curtain is pulled indoors. If the light sensation module after the curtain is pulled up measures the indoor ambient luminosity Y, it is obvious that Y is less than Y0; then the LED backlight control signal of the algorithm of the present invention is f (g (y)), while the LED backlight control signal of the prior art is f (y). g (Y) > Y0 > Y, so it is clear that the ambient light of the algorithm can also be closer to reality.
If the actual brightness value of the current ambient light is Y0, when the light is turned on indoors at night and the ambient brightness measured by the light sensing module should be greater than the ambient light outdoors, the conversion method is as follows:
if Y ∈ (Y)Time j，YTime j +1) Generating an LED backlight control signal f (y) according to the actual value of y
If Y < YTime jThen Y is transformed such that g (Y) e (Y) after the transformationTime j，Yj+1 Time) The LED backlight control signal is f (g (y))
Wherein the transformation algorithm is as follows
Suppose a is 2 (Y)Time j +1-YTime j)/YTime j +1+YTime j
Then g (Y) ═ YTime j+y×a
If Y > YTime j +1Then Y is transformed such that g (Y) e (Yj time, Y) after the transformationTime j +1) The LED backlight control signal is f (g (y))
Wherein the transformation algorithm is as follows
Suppose a ═ YTime j +1-YTime j)YTime j +1
Then g (Y) ═ YTime j +1×a/y
In the above case, the measured brightness Y of the indoor light sensing module is the current ambient light Y0. F (g (Y)) after the algorithm of the present invention is transformed, and g (Y) < Y0. Although g (y) after the conversion is lower than the actual ambient light brightness, the backlight control according to the conversion is softer than the backlight control without the conversion in terms of the outdoor ambient light brightness, and the human eye feels more comfortable.
It should be noted that the transformation algorithm may be adjusted according to the needs of the actual situation, and the transformation algorithm is designed according to the preset rule of the ambient light threshold range.
It should be noted that the backlight control process may be implemented by an FPGA (Field-programmable gate Array) or an ASIC (Application Specific inter-gratedcircuits).
As shown in fig. 3, the processing apparatus for backlight brightness control signals according to the embodiment of the present invention is provided; the device includes:
a parameter obtaining unit 301, configured to obtain an ambient light threshold range list, an outdoor ambient parameter, and an indoor ambient light signal parameter; wherein the list of ambient light threshold ranges comprises: an ambient light threshold range list corresponding to weather conditions and an ambient light threshold range list corresponding to date and time; the outdoor environment parameters include: outdoor weather parameters, date and time parameters; the indoor ambient light signal parameters include: indoor ambient light brightness value.
It should be noted that the outdoor environment parameters are obtained through a network module; the indoor environment light signal parameters are obtained through the light sensing module. The outdoor environment parameters obtained by the network module mainly include: weather, time, date, etc.
A threshold range determining unit 302, configured to determine a current ambient light threshold range according to the outdoor environment parameter;
a judging unit 303, configured to judge whether the indoor ambient light signal parameter is within the current ambient light threshold range;
a backlight control unit 304, configured to perform backlight control processing according to the indoor ambient light signal parameter if the indoor ambient light signal parameter is within the current ambient light threshold range;
a parameter processing unit 305, configured to, if the indoor ambient light signal parameter is not within the current ambient light threshold range, perform linear transformation on the indoor ambient light signal parameter so that the transformed indoor ambient light signal parameter is within the current ambient light threshold range.
It should be noted that the apparatus further comprises:
a presetting unit 306, configured to preset the ambient light threshold range list.
It is further noted that the backlight control process is implemented by a field programmable gate array or an application specific integrated circuit.
According to the method and the device for processing the backlight brightness control signal, provided by the embodiment of the invention, an ambient light threshold range list, an outdoor ambient parameter and an indoor ambient light signal parameter are obtained; determining a current ambient light threshold range according to the outdoor ambient parameters; judging whether the indoor environment light signal parameter is in the current environment light threshold range; if the indoor environment light signal parameter is in the current environment light threshold range, performing backlight control processing according to the indoor environment light signal parameter; and if the indoor environment light signal parameter is not in the current environment light threshold range, performing linear transformation on the indoor environment light signal parameter to enable the transformed indoor environment light signal parameter to be in the current environment light threshold range. In the embodiment of the invention, the ambient light threshold range list, the outdoor ambient parameter and the indoor ambient light signal parameter are comprehensively considered, so that the misadjustment probability of the backlight source control module on the backlight brightness signal is greatly reduced, and the display picture quality is improved.
Through the above description of the embodiments, one of ordinary skill in the art can understand that: all or part of the steps of the method for implementing the above embodiment may be implemented by a program instructing associated hardware, where the program may be stored in a computer-readable storage medium, and when executed, the program includes the steps of the above method embodiment, and the storage medium includes, for example: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for processing a backlight brightness control signal, comprising:
acquiring an ambient light threshold range list, outdoor ambient parameters and indoor ambient light signal parameters;
determining a current ambient light threshold range according to the outdoor ambient parameters;
judging whether the indoor environment light signal parameter is in the current environment light threshold range;
if the indoor environment light signal parameter is in the current environment light threshold range, performing backlight control processing according to the indoor environment light signal parameter;
and if the indoor environment light signal parameter is not in the current environment light threshold range, performing linear transformation on the indoor environment light signal parameter to enable the transformed indoor environment light signal parameter to be in the current environment light threshold range.
2. The method of claim 1, further comprising:
and presetting the ambient light threshold range list.
3. The method of claim 2, wherein the ambient light threshold range list comprises: an ambient light threshold range list corresponding to weather conditions and an ambient light threshold range list corresponding to date and time; the outdoor environment parameters include: outdoor weather parameters, date and time parameters; the indoor ambient light signal parameters include: indoor ambient light brightness value.
4. The method according to any one of claims 1 to 3, wherein the outdoor environment parameter is obtained by a network module; the indoor environment light signal parameters are obtained through the light sensing module.
5. The method according to claim 4, wherein the backlight control process is implemented by a field programmable gate array or an application specific integrated circuit.
6. A device for processing a backlight brightness control signal, comprising:
the parameter acquisition unit is used for acquiring an ambient light threshold range list, outdoor ambient parameters and indoor ambient light signal parameters;
a threshold range determining unit, configured to determine a current ambient light threshold range according to the outdoor environment parameter;
the judging unit is used for judging whether the indoor environment light signal parameter is in the current environment light threshold range;
the backlight control unit is used for carrying out backlight control processing according to the indoor environment light signal parameter if the indoor environment light signal parameter is in the current environment light threshold range;
and the parameter processing unit is used for performing linear transformation on the indoor environment light signal parameter if the indoor environment light signal parameter is not in the current environment light threshold range, so that the transformed indoor environment light signal parameter is in the current environment light threshold range.
7. The apparatus for processing the backlight brightness control signal according to claim 6, further comprising:
and the presetting unit is used for presetting the ambient light threshold range list.
8. The apparatus for processing the backlight brightness control signal according to claim 7, wherein the ambient light threshold range list comprises: an ambient light threshold range list corresponding to weather conditions and an ambient light threshold range list corresponding to date and time; the outdoor environment parameters include: outdoor weather parameters, date and time parameters; the indoor ambient light signal parameters include: indoor ambient light brightness value.
9. The apparatus for processing the backlight brightness control signal according to any one of claims 6 to 8, wherein the outdoor environment parameter is obtained by a network module; the indoor environment light signal parameters are obtained through the light sensing module.
10. The apparatus for processing the backlight brightness control signal according to claim 9, wherein the backlight control process is implemented by a field programmable gate array or an application specific integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110036810.9A CN102637410B (en) | 2011-02-12 | 2011-02-12 | Processing method and device of backlight brightness control signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110036810.9A CN102637410B (en) | 2011-02-12 | 2011-02-12 | Processing method and device of backlight brightness control signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102637410A true CN102637410A (en) | 2012-08-15 |
| CN102637410B CN102637410B (en) | 2015-02-04 |
Family
ID=46621785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110036810.9A Active CN102637410B (en) | 2011-02-12 | 2011-02-12 | Processing method and device of backlight brightness control signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102637410B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200370A (en) * | 2013-03-19 | 2013-07-10 | 海信集团有限公司 | Method and system for adjusting screen display of liquid crystal display television |
| CN104240676A (en) * | 2013-06-21 | 2014-12-24 | 联想(北京)有限公司 | Method for adjusting electronic device and electronic device |
| CN104978946A (en) * | 2014-04-11 | 2015-10-14 | 深圳Tcl新技术有限公司 | Display device backlight self-adaptive adjusting method and apparatus |
| CN105679252A (en) * | 2016-03-01 | 2016-06-15 | 广东欧珀移动通信有限公司 | Method and system for quickly setting backlight brightness |
| CN105872844A (en) * | 2016-02-05 | 2016-08-17 | 四川长虹电器股份有限公司 | Automatic backlight adjusting method based on network flat-panel television |
| CN108597456A (en) * | 2018-04-03 | 2018-09-28 | 北京小米移动软件有限公司 | Back light brightness regulating method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1782820A (en) * | 2004-12-02 | 2006-06-07 | 日本电气株式会社 | Liquid crystal display device and electronic device equipped with the same |
| CN1866341A (en) * | 2005-05-20 | 2006-11-22 | 株式会社半导体能源研究所 | Display device and electronic device |
| CN101114440A (en) * | 2007-08-27 | 2008-01-30 | 重庆大学 | Automatic brightness control device and method for outdoor full-color LED large-screen display |
| CN101162578A (en) * | 2007-11-09 | 2008-04-16 | 汇众联合传媒科技有限公司 | Method for regulating outdoor display screen brightness |
| US20080284718A1 (en) * | 2007-05-18 | 2008-11-20 | Motorola, Inc. | Homochromatic and Color Display Assembly on an Electronic Device and Method for Operation Thereof |
-
2011
- 2011-02-12 CN CN201110036810.9A patent/CN102637410B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1782820A (en) * | 2004-12-02 | 2006-06-07 | 日本电气株式会社 | Liquid crystal display device and electronic device equipped with the same |
| CN1866341A (en) * | 2005-05-20 | 2006-11-22 | 株式会社半导体能源研究所 | Display device and electronic device |
| US20080284718A1 (en) * | 2007-05-18 | 2008-11-20 | Motorola, Inc. | Homochromatic and Color Display Assembly on an Electronic Device and Method for Operation Thereof |
| CN101114440A (en) * | 2007-08-27 | 2008-01-30 | 重庆大学 | Automatic brightness control device and method for outdoor full-color LED large-screen display |
| CN101162578A (en) * | 2007-11-09 | 2008-04-16 | 汇众联合传媒科技有限公司 | Method for regulating outdoor display screen brightness |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200370A (en) * | 2013-03-19 | 2013-07-10 | 海信集团有限公司 | Method and system for adjusting screen display of liquid crystal display television |
| CN103200370B (en) * | 2013-03-19 | 2017-08-25 | 海信集团有限公司 | The method and system that adjustable liquid crystal display video screen is shown |
| CN104240676A (en) * | 2013-06-21 | 2014-12-24 | 联想(北京)有限公司 | Method for adjusting electronic device and electronic device |
| CN104978946A (en) * | 2014-04-11 | 2015-10-14 | 深圳Tcl新技术有限公司 | Display device backlight self-adaptive adjusting method and apparatus |
| CN104978946B (en) * | 2014-04-11 | 2017-09-15 | 深圳Tcl新技术有限公司 | The method and apparatus that display device backlight is adaptively adjusted |
| CN105872844A (en) * | 2016-02-05 | 2016-08-17 | 四川长虹电器股份有限公司 | Automatic backlight adjusting method based on network flat-panel television |
| CN105679252A (en) * | 2016-03-01 | 2016-06-15 | 广东欧珀移动通信有限公司 | Method and system for quickly setting backlight brightness |
| CN105679252B (en) * | 2016-03-01 | 2018-05-18 | 广东欧珀移动通信有限公司 | The quick method and system that backlight illumination is set |
| CN108597456A (en) * | 2018-04-03 | 2018-09-28 | 北京小米移动软件有限公司 | Back light brightness regulating method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102637410B (en) | 2015-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10490137B2 (en) | Backlight brightness adjustment method and apparatus | |
| CN107102442B (en) | Adjusting method of automatic brightness adjusting device of HUD | |
| US8730275B2 (en) | Display device, brightness adjustment device, method of adjusting brightness, and program | |
| TWI428891B (en) | Electronic apparatus and backlight brightness control method thereof | |
| CN104616633B (en) | Method and device for adjusting display screen of portable terminal | |
| CN102637410A (en) | Processing method and device of backlight brightness control signal | |
| CN102903347B (en) | Method and system for effectively solving problem of unclear display of liquid crystal display screen under sunshine | |
| US8963826B2 (en) | Video display apparatus including brightness control based on ambient illuminance | |
| TWI408960B (en) | Image display device | |
| WO2009017156A1 (en) | Image display device, control method of image display device, and adjustment system of image display device | |
| CN103415109A (en) | Adjusting method for LED backlight brightness | |
| CN104616626A (en) | Brightness adjusting device and method of display device | |
| CN103247281A (en) | Method and electronic equipment for adjusting display brightness | |
| US8115417B2 (en) | Color management system and method for LED backlights | |
| JP2010181487A (en) | Display device | |
| US20160322025A1 (en) | Method and apparatus for adjusting display brightness of display apparatus and display apparatus | |
| CN104469022A (en) | Backlight lamp regulation method and system and handheld terminal | |
| US10347163B1 (en) | Adaptive color in illuminative devices | |
| CN203416333U (en) | PWM infrared fill-in light switching device | |
| CN106023885A (en) | Automatic brightness adjusting method for LED display screen | |
| CN100516987C (en) | Liquid crystal display and its automatic adjustment method | |
| CN101655210A (en) | Backlight system of liquid crystal display apparatus | |
| JP2012226707A (en) | Environment control system and environment control program | |
| CN103634967A (en) | Photoelectric intelligent adjustable LED panel lamp and adjusting method | |
| JP2010085891A (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 Visual Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |