CN201017614Y - Device with automatically regulating light display terminal - Google Patents
Device with automatically regulating light display terminal Download PDFInfo
- Publication number
- CN201017614Y CN201017614Y CNU2007201035906U CN200720103590U CN201017614Y CN 201017614 Y CN201017614 Y CN 201017614Y CN U2007201035906 U CNU2007201035906 U CN U2007201035906U CN 200720103590 U CN200720103590 U CN 200720103590U CN 201017614 Y CN201017614 Y CN 201017614Y
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- brightness
- display terminal
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- control circuit
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Abstract
The utility model discloses an automatic brightness control for a display terminal, which comprises an environment brightness collecting unit and a control unit. The environment brightness collecting unit comprises a light sensor, the control unit comprises a CPU, a light sensitive control circuit, and a brightness control circuit, the environment brightness signal collected by the light sensor is transmitted to the light sensitive control circuit, the light sensitive control circuit coverts the received analog signal into digital signal and transmits to the CPU, the CPU controls the brightness control circuit and control voltage of the power supply circuit according to the received signal, and realizes that the brightness of the display terminal is automatically controlled. The brightness of the display terminal can be matched with the environment brightness, the visual effect is better, and the power consumption of the display terminal can be reduced. The utility model is mainly suitable for a liquid crystal, and also suitable for other display terminals.
Description
Technical field
The utility model relates to a kind of control technology of display terminal, relates in particular to a kind of device of display terminal automatically regulating brightness.
Background technology
Development along with display technique, increasing liquid crystal display terminal begins to replace traditional CRT (cathode-ray tube (CRT)) display, be applied in the middle of the various industries, when a lot of sector application, requirement can clear display under very strong ambient brightness, that just requires the brightness of liquid crystal display terminal very high, if but LCDs always remains on the luminance standard when using under the high light, when ambient brightness intensity weakens, human eye is watched being upset to cause because liquid crystal display terminal mistake backlight is bright and is felt very uncomfortable, watch for a long time, also can cause visual fatigue and visual impairment.
Summary of the invention
The purpose of this utility model provides a kind of device of display terminal automatically regulating brightness, and this device can be according to the brightness of the brightness regulation display terminal of environment.
The purpose of this utility model is achieved through the following technical solutions:
The device of display terminal automatically regulating brightness of the present utility model, be used for regulating the brightness of display terminal according to ambient brightness, comprise ambient brightness collecting unit, control module, described ambient brightness collecting unit is electrically connected with control module, and described control module is electrically connected with display terminal.
Described ambient brightness collecting unit comprises light activated element, and described control module is provided with photosensitive control interface, and described light activated element is plugged on the photosensitive control interface.
Described control module comprises CPU, photosensitive control circuit, brightness regulating circuit, the signal of the ambient brightness of described light activated element collection is passed to photosensitive control circuit, photosensitive control circuit is passed to CPU after the signal that receives is handled, CPU regulates the brightness of display terminal according to the signal controlling brightness regulating circuit that receives.
Described display terminal is connected with feed circuit, and described brightness regulating circuit is electrically connected with feed circuit.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the device of display terminal automatically regulating brightness described in the utility model, owing to comprise ambient brightness collecting unit, control module, the ambient brightness collecting unit is gathered the ambient brightness signal, and signal passed to control module, control module is according to the brightness of the signal controlling display terminal that receives.The brightness and the ambient brightness of display terminal are complementary, and visual effect is better, and can reduce the power consumption of display terminal.Mainly be applicable to LCDs, also be applicable to other display terminal.
Description of drawings
Fig. 1 is the structure principle chart of the device of the utility model display terminal automatically regulating brightness;
Fig. 2 is the schematic diagram of photosensitive control circuit of the device of the utility model display terminal automatically regulating brightness.
Embodiment
The device of display terminal automatically regulating brightness of the present utility model, be used for regulating the brightness of display terminal according to ambient brightness, its preferable embodiment as shown in Figure 1, comprise ambient brightness collecting unit, control module, described ambient brightness collecting unit is electrically connected with control module, and described control module is electrically connected with display terminal.The display terminal here mainly refers to LCDs, also can be other display terminal.
Above-mentioned ambient brightness collecting unit comprises light activated element, and control module can be provided with photosensitive control interface, and light activated element is plugged on the photosensitive control interface.Light activated element can be installed on the liquid crystal display terminal, and the sensing part of light activated element is installed on the shell of terminal, and light activated element is gathered the ambient brightness signal, is transferred to control module.
Described control module comprises CPU, photosensitive control circuit, brightness regulating circuit, the signal of the ambient brightness of described light activated element collection is passed to photosensitive control circuit, photosensitive control circuit is passed to CPU after the signal that receives is handled, and CPU is according to the signal controlling brightness regulating circuit that receives.
As shown in Figure 2, be the schematic diagram of photosensitive control circuit.The pin A12 of CPU is directly connected to photosensitive control circuit.The data that the photosensitive control circuit collection comes send CPU to by pin A12.
Described display terminal is connected with feed circuit, and described brightness regulating circuit is electrically connected with feed circuit.Adjusting to display terminal brightness mainly is to realize by the supply voltage of regulating feed circuit.
The utility model can be regulated the brightness of display terminal according to ambient brightness, may further comprise the steps:
Step 1, at first gather the ambient brightness signal, and signal is passed to control module by the ambient brightness collecting unit;
The brightness of the signal controlling display terminal that step 2, control module basis receive.
Above-mentioned step 1 specifically comprises step:
In the above-mentioned step 2, control module can be set a plurality of brightness class, each brightness class is the different brightness of corresponding display terminal respectively, CPU judges the brightness class that display terminal is suitable for according to the ambient brightness signal that receives, and regulates the supply voltage of the feed circuit of display terminal by brightness regulating circuit.
Described brightness class has fourth gear at least, and it regulates the brightness of display terminal automatically according to ambient brightness.
Can in control program, set several grades of brightness, and the corresponding master control borad of each grade outputs to the magnitude of voltage of backlight control pin.
Specifically by CPU according to the setting of control program with by the brightness data that light activated element collects, judge its brightness in which grade, thereby decision outputs to the magnitude of voltage of display terminal.And then the brightness regulation of realization display terminal, can realize automatic adjusting.
Wherein, light activated element is 8 to the collection of simulating signal, so can be divided into 256 grades to ambient brightness at most, in the data of collection, 0 grade of expression ambient brightness is the darkest, and representative does not have the situation of light, and 255 grades of correspondences the strongest situation of ambient light.The brightness of program setting display terminal is divided into four class, is respectively A, B, C, D shelves, also can establish the class of other quantity as required.The data of gathering when light activated element are between 0～64 the time, and the brightness of corresponding display terminal is exactly the D shelves, this moment feed circuit supply voltage 0.25 times of voltage when being high-high brightness; When the data of gathering were between 65～128, the brightness of corresponding display terminal was exactly the C shelves, this moment feed circuit supply voltage 0.5 times of voltage when being high-high brightness; When the data of gathering were between 129～192, the brightness of corresponding display terminal was exactly the B shelves, this moment feed circuit supply voltage 0.75 times of voltage when being high-high brightness; When the data of gathering were between 192～255, the brightness of corresponding display terminal was exactly the A shelves, the voltage that requires when the supply voltage of feed circuit is for high-high brightness at this moment.
In concrete the application, light activated element can be set once sampled to ambient brightness every several seconds, send CPU then to, CPU can be according to the setting of program, compare with the original scope of setting gathering the data of coming in, judge these data then in which scope, if at the A shelves, just controlling supply voltage is maximum voltage; If at the B shelves, just control supply voltage and be maximum voltage 0.75 times, at this moment, ambient brightness dies down, and the brightness of display terminal is suitably deepening also, and the brightness that has realized display terminal is along with the die down process of also corresponding downward modulation of ambient brightness.On the contrary, if the ambient brightness grow becomes the A shelves by original B shelves, supply voltage will be by 0.75 times of maximum voltage so, be elevated to maximum voltage, the brightness of display terminal will raise, and has realized the process of brightness corresponding rising along with the grow of ambient brightness of display terminal.In like manner, other several class change procedures also are the same.
Display terminal of the present utility model is regulated the apparatus and method of brightness automatically, can regulate the brightness of display terminal according to the power of ambient brightness, thereby make picture be more suitable for watching of human eye.Brightness adjusting from high to low also can reduce the power consumption of complete machine, has avoided fearless energy dissipation.Mainly be applicable to LCDs, also be applicable to other display terminal.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. the device of a display terminal automatically regulating brightness, be used for regulating the brightness of display terminal, it is characterized in that, comprise ambient brightness collecting unit, control module according to ambient brightness, described ambient brightness collecting unit is electrically connected with control module, and described control module is electrically connected with display terminal.
2. the device of display terminal automatically regulating brightness according to claim 1 is characterized in that, described ambient brightness collecting unit comprises light activated element, and described control module is provided with photosensitive control interface, and described light activated element is plugged on the photosensitive control interface.
3. the device of display terminal automatically regulating brightness according to claim 1 and 2, it is characterized in that, described control module comprises CPU, photosensitive control circuit, brightness regulating circuit, the signal of the ambient brightness of described light activated element collection is passed to photosensitive control circuit, photosensitive control circuit is passed to CPU after the signal that receives is handled, CPU regulates the brightness of display terminal according to the signal controlling brightness regulating circuit that receives.
4. the device of display terminal automatically regulating brightness according to claim 3 is characterized in that, described display terminal is connected with feed circuit, and described brightness regulating circuit is electrically connected with feed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201035906U CN201017614Y (en) | 2007-02-13 | 2007-02-13 | Device with automatically regulating light display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201035906U CN201017614Y (en) | 2007-02-13 | 2007-02-13 | Device with automatically regulating light display terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017614Y true CN201017614Y (en) | 2008-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201035906U Expired - Lifetime CN201017614Y (en) | 2007-02-13 | 2007-02-13 | Device with automatically regulating light display terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN201017614Y (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 |
| CN102469659A (en) * | 2010-11-18 | 2012-05-23 | 珠海格力电器股份有限公司 | Intelligent light control system and control method |
| CN102568438A (en) * | 2010-12-13 | 2012-07-11 | 周锡卫 | Self-adaptation brightness intelligent regulator for display device and realization method |
| CN105719618A (en) * | 2016-03-30 | 2016-06-29 | 深圳市蓝视界科技有限公司 | Method for saving energy by means of automatically adjusting brightness of mobile phone screen |
| CN106683611A (en) * | 2016-12-30 | 2017-05-17 | 马鞍山佳鼎通信科技有限公司 | LED screen brightness regulation system |
-
2007
- 2007-02-13 CN CNU2007201035906U patent/CN201017614Y/en not_active Expired - Lifetime
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 |
| CN102469659A (en) * | 2010-11-18 | 2012-05-23 | 珠海格力电器股份有限公司 | Intelligent light control system and control method |
| CN102568438A (en) * | 2010-12-13 | 2012-07-11 | 周锡卫 | Self-adaptation brightness intelligent regulator for display device and realization method |
| CN105719618A (en) * | 2016-03-30 | 2016-06-29 | 深圳市蓝视界科技有限公司 | Method for saving energy by means of automatically adjusting brightness of mobile phone screen |
| CN106683611A (en) * | 2016-12-30 | 2017-05-17 | 马鞍山佳鼎通信科技有限公司 | LED screen brightness regulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20090610 Pledge (preservation): Pledge |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20090610 Pledge (preservation): Pledge |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20100716 Granted publication date: 20080206 Pledgee: Bank of Communications Ltd Beijing branch of Chinese Academy of Sciences Pledgor: Beijing D-peak Choosit Technology Co., Ltd. Registration number: 2009110000559 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |