CN1862334A - Hand-held automatic apparatus for regulating backlight brightness and effect and method thereof - Google Patents
Hand-held automatic apparatus for regulating backlight brightness and effect and method thereof Download PDFInfo
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- CN1862334A CN1862334A CN 200510025737 CN200510025737A CN1862334A CN 1862334 A CN1862334 A CN 1862334A CN 200510025737 CN200510025737 CN 200510025737 CN 200510025737 A CN200510025737 A CN 200510025737A CN 1862334 A CN1862334 A CN 1862334A
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Abstract
The present invention relates to a device for automatically regulating backlight intensity and effect of hand-held equipment. Said device includes central processing module, environmental light intensity detection module and memory module. The described central processing module is respectively connected with environmental light intensity detection module and memory module. Besides, said invention also provides the concrete method and steps by using said device to automatically regulate backlight intensity and effect.
Description
Technical field
The present invention relates to the handheld device field, particularly handheld device interface display effect backlight control field is meant that specifically a kind of handheld device adjusts the devices and methods therefor of backlight illumination and effect automatically.
Background technology
Enhancing along with handheld device (as PDA and mobile phone etc.) multimedia function, people have begun to utilize it to come reading electronic book and watch film etc., people are almost enjoying the convenience that it brings whenever and wherever possible, thing followed problem is: because external environment brightness is in the continuous variation, and the effect that LCDs (LCD) shows under different external environment conditions can be different, can not see Chu as user under the stronger environment of light, and be easy to generate eye fatigue, for operation keyboard brightness regulation backlight, there is such problem equally simultaneously.
The way that industry is traditional provides the user can manual adjustment LCD backlight illumination and the interface of contrast, control mode is cumbersome, lacks user's compatibility, and when adjusting is unsuitable, the effect that not only can not get can be wasted the electric weight of handheld device on the contrary.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of and can adjust the devices and methods therefor of backlight illumination and effect automatically according to external environment condition light automatic brightness adjustment handheld device interface effect backlight, good, easy to use, the suitable eyes of display effect, cost handheld device lower, power saving.
In order to realize above-mentioned purpose, it is as follows that handheld device of the present invention is adjusted the devices and methods therefor of backlight illumination and effect automatically:
This handheld device is adjusted the device of backlight illumination and effect automatically, comprise handheld device and its inner backlight control circuit, its principal feature is, described backlight control circuit comprises central processing module, ambient light luminance detection module and memory module, and described central processing module is connected with ambient light luminance detection module, memory module respectively.
This handheld device is adjusted automatically in the ambient light luminance detection module of device of backlight illumination and effect and is comprised ambient light sensor and emulation/digital conversion chip.
This handheld device is adjusted automatically in the memory module of device of backlight illumination and effect and is stored several different gray scale settings in advance.
The gray scale setting that this handheld device is adjusted the device of backlight illumination and effect automatically comprises very dark, dark partially Level1, dark partially Level2, normal brightness, bright partially Level2, bright partially Level1 and superbright.
This use said apparatus carries out backlight illumination and the self-adjusting method of effect, and its principal feature is that this method may further comprise the steps:
(1) ambient light luminance detection module is detected current light luminance, and carries out real-time sampling and analog/digital conversion;
(2) central processing module data that sampling is obtained are carried out the brightness of external environment condition light and are changed decision operation;
(3) if light luminance does not change, then do not carry out any operation; If light luminance changes, then carry out the automatic adjustment operation of corresponding backlight brightness and effect.
This external environment condition light brightness variation decision operation of carrying out of carrying out backlight illumination and the self-adjusting method of effect may further comprise the steps:
(1) the luminance threshold data of storing in central processing module data that sampling is obtained and the memory module compare;
(2) a preceding sampled data that writes down in central processing module data that sampling is obtained and the memory module compares.
This carries out the backlight illumination of backlight illumination and the self-adjusting method of effect and the automatic adjustment operation of effect may further comprise the steps:
(1) if the brightness of external environment condition light is by secretly brightening, then the backlight illumination and the contrast of current LCD being heightened; Otherwise, then the backlight illumination and the contrast of current LCD are turned down;
(2) if the brightness of external environment condition light is by secretly brightening, then keyboard back light brightness being turned down or closed; Otherwise then just keyboard back light brightness is heightened.
This ambient light luminance detection module of carrying out backlight illumination and the self-adjusting method of effect is detected before the current light luminance step, also comprises according to the backlight illumination of user's manual adjustment correction present mode and the processing of effect parameter.
This carries out may further comprise the steps according to the backlight illumination of user's manual adjustment correction present mode and the processing of effect parameter of backlight illumination and the self-adjusting method of effect:
(1), revises the LCD backlight illumination and the contrast level parameter of current demonstration according to the operation of user's manual adjustment;
(2) preserve operation according to the user, the LCD backlight illumination and the contrast level parameter of current demonstration is saved to memory module;
(3) judge whether the user allows keyboard back light to be provided with automatically;
(4) if allow, then allow keyboard back light to be provided with automatically; Otherwise forbid that then keyboard back light is provided with automatically.
Adopted the handheld device of this invention to adjust the devices and methods therefor of backlight illumination and effect automatically, owing in handheld device, increased ambient light luminance detection module, make handheld device adjust LCD backlight illumination and contrast automatically according to the brightness of external environment condition light, possesses the function of adjusting color simultaneously, the color that LCD is shown is more bright-coloured, contrast is more suitable for eyes, and undistorted, avoids causing damaging eyesight because of eye fatigue; Make this handheld device possess the function of power saving simultaneously, and with low cost, easy to use.
Description of drawings
Fig. 1 adjusts the functional module schematic diagram of the device of backlight illumination and effect automatically for handheld device of the present invention.
Fig. 2 is the process flow diagram that carries out backlight illumination and the self-adjusting method of effect of the present invention.
Fig. 3 is of the present invention according to the backlight illumination of user's manual adjustment correction present mode and the processing flow chart of effect parameter.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 1, this handheld device is adjusted the device of backlight illumination and effect automatically, comprise handheld device and its inner backlight control circuit, wherein, described backlight control circuit comprises central processing module 2, ambient light luminance detection module 1 and memory module 3, and described central processing module 2 is connected 3 with ambient light luminance detection module 1, memory module respectively.Comprise ambient light sensor and emulation/digital conversion chip in this ambient light luminance detection module 1.Store several different gray scale settings in this memory module 3 in advance, its gray scale setting comprises: very dark, dark partially Level1, dark partially Level2, normal brightness, bright partially Level2, bright partially Level1 and superbright.
See also shown in Figure 2ly again, this use said apparatus carries out backlight illumination and the self-adjusting method of effect may further comprise the steps:
(1) the current light luminance of ambient light luminance detection module 1 detecting, and carry out real-time sampling and analog/digital conversion;
(2) central processing module 2 data that sampling is obtained are carried out the brightness of external environment condition light and are changed decision operation, may further comprise the steps:
(a) the luminance threshold data of storage compare in central processing module 2 data that sampling is obtained and the memory module 3;
(b) a preceding sampled data of record compares in central processing module 2 data that sampling is obtained and the memory module 3;
(3) if light luminance does not change, then do not carry out any operation; If light luminance changes, then carry out the automatic adjustment operation of corresponding backlight brightness and effect, may further comprise the steps:
(a) if the brightness of external environment condition light is by secretly brightening, then the backlight illumination and the contrast of current LCD being heightened; Otherwise, then the backlight illumination and the contrast of current LCD are turned down;
(b) if the brightness of external environment condition light is by secretly brightening, then keyboard back light brightness being turned down or closed; Otherwise then just keyboard back light brightness is heightened.
See also shown in Figure 3 again, before this ambient light luminance detection module of carrying out backlight illumination and the self-adjusting method of effect is detected current light luminance step, also comprise according to the backlight illumination of user's manual adjustment correction present mode and the processing of effect parameter, may further comprise the steps:
(1), revises the LCD backlight illumination and the contrast level parameter of current demonstration according to the operation of user's manual adjustment;
(2) preserve operation according to the user, the LCD backlight illumination and the contrast level parameter of current demonstration is saved to memory module 3;
(3) judge whether the user allows keyboard back light to be provided with automatically;
(4) if allow, then allow keyboard back light to be provided with automatically; Otherwise forbid that then keyboard back light is provided with automatically.
In the middle of reality is used, when user's use possesses the device of this function, ambient light luminance detection module 1 can be detected the light luminance of current environment for use, and sample and analog/digital conversion, central processing module 2 mates the data that sampling obtains record in data and the memory module 3, whether decision adjusts current LCD backlight illumination and contrast according to matching result, to reach the purpose of automatic adjustment screen display effect.
Use this device when walking as the user, ambient light luminance detection module 1 can be detected the light luminance of current environment for use, and carry out real-time sampling and analog/digital conversion, central processing module 2 compares the luminance threshold data that sampling obtains record in data and the memory module 3, simultaneously itself and previous sampled data are compared, judge that according to this brightness of external environment condition light is by secretly brightening or by bright deepening, whether decision adjusts current LCD backlight illumination and contrast according to reality detecting result, to reach the purpose of automatic adjustment screen display effect; Walk toward bright environment from darker relatively environment and work as the user, under the bright environment of light, the keyboard back light effect is not too obvious, and take, the present invention automatically adjust LCD backlight in, correspondingly turn down keyboard back light brightness or turn off keyboard back light, have both the function of power saving.
When the user LCD backlight illumination of present mode and contrast are provided with dissatisfied, can the manual correction corresponding setting, to satisfy user's individual demand, describe above specifically seeing also and shown in Figure 3.
Adopted above handheld device to adjust the devices and methods therefor of backlight illumination and effect automatically, owing in handheld device, increased ambient light luminance detection module, make handheld device adjust LCD backlight illumination and contrast automatically according to the brightness of external environment condition light, possesses the function of adjusting color simultaneously, the color that LCD is shown is more bright-coloured, contrast is more suitable for eyes, and undistorted, avoids causing damaging eyesight because of eye fatigue; Make this handheld device possess the function of power saving simultaneously, and with low cost, easy to use.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1, a kind of handheld device is adjusted the device of backlight illumination and effect automatically, comprise handheld device and its inner backlight control circuit, it is characterized in that, described backlight control circuit comprises central processing module, ambient light luminance detection module and memory module, and described central processing module is connected with ambient light luminance detection module, memory module respectively.
2, handheld device according to claim 1 is adjusted the device of backlight illumination and effect automatically, it is characterized in that, comprises ambient light sensor and emulation/digital conversion chip in the described ambient light luminance detection module.
3, handheld device according to claim 1 is adjusted the device of backlight illumination and effect automatically, it is characterized in that, stores several different gray scale settings in the described memory module in advance.
4, handheld device according to claim 3 is adjusted the device of backlight illumination and effect automatically, it is characterized in that that described gray scale setting comprises is very dark, dark partially Level1, partially secretly Level2, normal brightness, bright partially Level2, bright partially Level1 and superbright.
5, the described device of a kind of use claim 1 carries out backlight illumination and the self-adjusting method of effect, it is characterized in that this method may further comprise the steps:
(1) ambient light luminance detection module is detected current light luminance, and carries out real-time sampling and analog/digital conversion;
(2) central processing module data that sampling is obtained are carried out the brightness of external environment condition light and are changed decision operation;
(3) if light luminance does not change, then do not carry out any operation; If light luminance changes, then carry out the automatic adjustment operation of corresponding backlight brightness and effect.
6, backlight illumination and the self-adjusting method of effect of carrying out according to claim 5 is characterized in that, the described external environment condition light brightness variation decision operation of carrying out may further comprise the steps:
(1) the luminance threshold data of storing in central processing module data that sampling is obtained and the memory module compare;
(2) a preceding sampled data that writes down in central processing module data that sampling is obtained and the memory module compares.
7, backlight illumination and the self-adjusting method of effect of carrying out according to claim 5 is characterized in that, the automatic adjustment operation of described backlight illumination and effect may further comprise the steps:
(1) if the brightness of external environment condition light is by secretly brightening, then the backlight illumination and the contrast of current LCD being heightened; Otherwise, then the backlight illumination and the contrast of current LCD are turned down;
(2) if the brightness of external environment condition light is by secretly brightening, then keyboard back light brightness being turned down or closed; Otherwise then just keyboard back light brightness is heightened.
8, backlight illumination and the self-adjusting method of effect of carrying out according to claim 5, it is characterized in that, described ambient light luminance detection module is detected before the current light luminance step, also comprises according to the backlight illumination of user's manual adjustment correction present mode and the processing of effect parameter.
9, backlight illumination and the self-adjusting method of effect of carrying out according to claim 8 is characterized in that, describedly may further comprise the steps according to the backlight illumination of user's manual adjustment correction present mode and the processing of effect parameter:
(1), revises the LCD backlight illumination and the contrast level parameter of current demonstration according to the operation of user's manual adjustment;
(2) preserve operation according to the user, the LCD backlight illumination and the contrast level parameter of current demonstration is saved to memory module;
(3) judge whether the user allows keyboard back light to be provided with automatically;
(4) if allow, then allow keyboard back light to be provided with automatically; Otherwise forbid that then keyboard back light is provided with automatically.
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261811B (en) * | 2007-03-05 | 2010-10-27 | 奇景光电股份有限公司 | Backlight controller and scaling factor using full range search and local range search method |
| CN101441374B (en) * | 2007-11-22 | 2011-02-16 | 北京京东方光电科技有限公司 | LCD panel of thin-film transistor |
| CN101236732B (en) * | 2006-12-20 | 2011-05-25 | 乐金显示有限公司 | Liquid crystal display and its driving method |
| CN102122499A (en) * | 2011-02-23 | 2011-07-13 | 西南交通大学 | Light environment adaptive regulating system for screen display equipment |
| CN102404440A (en) * | 2010-09-17 | 2012-04-04 | 联芯科技有限公司 | Method and device automatically adjusting backlight luminance |
| CN101236728B (en) * | 2007-02-01 | 2012-08-08 | 三星电子株式会社 | Method and apparatus for controlling backlight in display device |
| CN102662258A (en) * | 2012-04-27 | 2012-09-12 | 深圳市华星光电技术有限公司 | Detection method and device of backlight module |
| CN103179748A (en) * | 2013-02-04 | 2013-06-26 | 广东美的制冷设备有限公司 | Remote control, and backlight control method and backlight control system thereof |
| CN103295532A (en) * | 2012-03-02 | 2013-09-11 | 艾默生过程控制流量技术有限公司 | Transmitter |
| CN103345907A (en) * | 2013-07-19 | 2013-10-09 | 国家电网公司 | Automatic regulator of LED backlight optical parameters based on ambient light detection |
| CN103793052A (en) * | 2013-11-21 | 2014-05-14 | 广州视源电子科技股份有限公司 | Eyesight protection control method for mobile terminal |
| CN104113742A (en) * | 2013-04-16 | 2014-10-22 | 罗伯特·博世有限公司 | Image Display Unit, Mobile Phone And Method |
| CN104378811A (en) * | 2014-11-14 | 2015-02-25 | 惠州Tcl移动通信有限公司 | Mobile terminal LCD luminance detection and control method and system |
| CN104598029A (en) * | 2015-01-12 | 2015-05-06 | 联想(北京)有限公司 | Method for controlling electronic equipment and electronic equipment |
| CN105632459A (en) * | 2016-03-28 | 2016-06-01 | 山东超越数控电子有限公司 | Computer display screen brightness adaptive adjustment method |
| CN106257223A (en) * | 2015-06-18 | 2016-12-28 | 东部大宇电子株式会社 | For controlling device and the method for refrigerator according to ambient brightness |
| CN106331346A (en) * | 2016-08-24 | 2017-01-11 | 珠海格力电器股份有限公司 | Contrast adjustment method and apparatus, display screen with apparatus, and portable device |
| CN106657676A (en) * | 2017-02-16 | 2017-05-10 | 广东小天才科技有限公司 | Screen brightness adjusting method and device |
| CN108417168A (en) * | 2018-02-07 | 2018-08-17 | 深圳市可可卓科科技有限公司 | The method and car-mounted terminal taken over seamlessly based on ray machine auto brightness |
| CN108775958A (en) * | 2018-05-29 | 2018-11-09 | Oppo（重庆）智能科技有限公司 | Brightness measurement, calibration method, device based on light sensor and electronic equipment |
| CN109637468A (en) * | 2019-02-20 | 2019-04-16 | 昆山弘锦威电子有限公司 | Adjust the electronic device and its backlight brightness regulation method of backlight illumination |
| CN110618527A (en) * | 2018-06-19 | 2019-12-27 | 苹果公司 | Electronic device with electrically adjustable optical layer |
| CN110782860A (en) * | 2019-12-03 | 2020-02-11 | 东莞市艺展电子有限公司 | Real-time brightness adjusting method and control circuit for display screen of vehicle-mounted information system |
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2005
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Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236732B (en) * | 2006-12-20 | 2011-05-25 | 乐金显示有限公司 | Liquid crystal display and its driving method |
| US8698721B2 (en) | 2006-12-20 | 2014-04-15 | Lg Display Co., Ltd. | Liquid crystal display device and method of driving the same |
| CN101236728B (en) * | 2007-02-01 | 2012-08-08 | 三星电子株式会社 | Method and apparatus for controlling backlight in display device |
| CN101261811B (en) * | 2007-03-05 | 2010-10-27 | 奇景光电股份有限公司 | Backlight controller and scaling factor using full range search and local range search method |
| CN101441374B (en) * | 2007-11-22 | 2011-02-16 | 北京京东方光电科技有限公司 | LCD panel of thin-film transistor |
| CN102404440B (en) * | 2010-09-17 | 2014-01-15 | 联芯科技有限公司 | Method and device automatically adjusting backlight luminance |
| CN102404440A (en) * | 2010-09-17 | 2012-04-04 | 联芯科技有限公司 | Method and device automatically adjusting backlight luminance |
| CN102122499A (en) * | 2011-02-23 | 2011-07-13 | 西南交通大学 | Light environment adaptive regulating system for screen display equipment |
| CN103295532A (en) * | 2012-03-02 | 2013-09-11 | 艾默生过程控制流量技术有限公司 | Transmitter |
| CN102662258B (en) * | 2012-04-27 | 2015-04-15 | 深圳市华星光电技术有限公司 | Detection method and device of backlight module |
| CN102662258A (en) * | 2012-04-27 | 2012-09-12 | 深圳市华星光电技术有限公司 | Detection method and device of backlight module |
| CN103179748A (en) * | 2013-02-04 | 2013-06-26 | 广东美的制冷设备有限公司 | Remote control, and backlight control method and backlight control system thereof |
| CN104113742A (en) * | 2013-04-16 | 2014-10-22 | 罗伯特·博世有限公司 | Image Display Unit, Mobile Phone And Method |
| CN104113742B (en) * | 2013-04-16 | 2017-12-08 | 罗伯特·博世有限公司 | Image display, mobile phone and method |
| CN103345907A (en) * | 2013-07-19 | 2013-10-09 | 国家电网公司 | Automatic regulator of LED backlight optical parameters based on ambient light detection |
| CN103793052B (en) * | 2013-11-21 | 2017-01-11 | 广州视源电子科技股份有限公司 | Eyesight protection control method for mobile terminal |
| CN103793052A (en) * | 2013-11-21 | 2014-05-14 | 广州视源电子科技股份有限公司 | Eyesight protection control method for mobile terminal |
| CN104378811A (en) * | 2014-11-14 | 2015-02-25 | 惠州Tcl移动通信有限公司 | Mobile terminal LCD luminance detection and control method and system |
| CN104598029A (en) * | 2015-01-12 | 2015-05-06 | 联想(北京)有限公司 | Method for controlling electronic equipment and electronic equipment |
| CN106257223A (en) * | 2015-06-18 | 2016-12-28 | 东部大宇电子株式会社 | For controlling device and the method for refrigerator according to ambient brightness |
| CN105632459A (en) * | 2016-03-28 | 2016-06-01 | 山东超越数控电子有限公司 | Computer display screen brightness adaptive adjustment method |
| CN106331346A (en) * | 2016-08-24 | 2017-01-11 | 珠海格力电器股份有限公司 | Contrast adjustment method and apparatus, display screen with apparatus, and portable device |
| CN106331346B (en) * | 2016-08-24 | 2019-06-07 | 珠海格力电器股份有限公司 | Contrast adjustment method, apparatus and display screen and portable equipment with the device |
| CN106657676A (en) * | 2017-02-16 | 2017-05-10 | 广东小天才科技有限公司 | Screen brightness adjusting method and device |
| CN108417168A (en) * | 2018-02-07 | 2018-08-17 | 深圳市可可卓科科技有限公司 | The method and car-mounted terminal taken over seamlessly based on ray machine auto brightness |
| CN108775958A (en) * | 2018-05-29 | 2018-11-09 | Oppo（重庆）智能科技有限公司 | Brightness measurement, calibration method, device based on light sensor and electronic equipment |
| CN108775958B (en) * | 2018-05-29 | 2020-12-29 | Oppo（重庆）智能科技有限公司 | Brightness measuring and calibrating method and device based on light sensor and electronic equipment |
| US11243403B2 (en) | 2018-06-19 | 2022-02-08 | Apple Inc. | Electronic devices having electrically adjustable optical layers |
| CN110618527A (en) * | 2018-06-19 | 2019-12-27 | 苹果公司 | Electronic device with electrically adjustable optical layer |
| CN110618527B (en) * | 2018-06-19 | 2022-03-01 | 苹果公司 | Electronic device with electrically adjustable optical layer |
| CN109637468A (en) * | 2019-02-20 | 2019-04-16 | 昆山弘锦威电子有限公司 | Adjust the electronic device and its backlight brightness regulation method of backlight illumination |
| CN110782860A (en) * | 2019-12-03 | 2020-02-11 | 东莞市艺展电子有限公司 | Real-time brightness adjusting method and control circuit for display screen of vehicle-mounted information system |
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