CN102456317A - Display screen with adjustable partial backlights - Google Patents
Display screen with adjustable partial backlights Download PDFInfo
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- CN102456317A CN102456317A CN2010105113934A CN201010511393A CN102456317A CN 102456317 A CN102456317 A CN 102456317A CN 2010105113934 A CN2010105113934 A CN 2010105113934A CN 201010511393 A CN201010511393 A CN 201010511393A CN 102456317 A CN102456317 A CN 102456317A
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- display screen
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- light sensor
- backlights
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Abstract
The invention provides a display screen with adjustable partial backlights, which comprises a display screen, a plurality of backlights, a plurality of photosensitive sensors and a control unit, wherein the display screen is divided into a plurality of areas; the backlights are respectively arranged in different areas of the display screen and respectively adjust backlight brightness in corresponding areas according to the magnitudes of applied voltages; the photosensitive sensors are respectively arranged on the external sides of different areas of the display screen and are used for changing the output voltage values of the photosensitive sensors according to the intensity of ambient light; and the control unit is connected with the photosensitive sensors and the backlights and determines the magnitude of voltage applied to the backlights in the areas according to the output voltage values of the photosensitive sensors. By using the photosensitive sensors and distributing the photosensitive sensors in different areas of the display screen for sensing the intensity of the ambient light in different areas, the backlight brightness of corresponding areas can be controlled conveniently.
Description
[technical field]
The present invention relates to a kind of display screen, particularly a kind of variable partition display screen backlight.
[background technology]
LCD generally is to be made up of fluorescent tube, LGP, Polarizer, filter, glass substrate, alignment film, liquid crystal material, thin mode transistor or the like.At first, LCD must utilize backlight earlier, and just fluorescent tube projects light source, and through the filtration of Polarizer, filter etc., the directional light that forms perpendicular to display screen sends liquid crystal to earlier.The arrangement mode of liquid crystal molecule can change the light angle that penetrates liquid crystal, and we so just can form the color combination of different tones as long as change light intensity and the color that the magnitude of voltage that is added on the liquid crystal just can be controlled last appearance on liquid crystal panel.
And adjusting backlight realizes through changing the back light source brightness that begins most.Want to realize to change automatically another kind of assembly---the light sensor that also needs backlight.Light sensor can change the resistance sizes of self according to the power of light, thereby changes the size of the magnitude of voltage of light sensor output.With the magnitude of voltage process treatment conversion of light sensor output, export to the control module of LCD.This control module decides to the alive size of backlight according to the input value size, thereby changes back light source brightness.This has just realized that display screen comes to change automatically power backlight according to ambient light intensity.In life, because the difference of external light source possibly an a certain panel region to screen exert an influence sometimes.
[summary of the invention]
Fundamental purpose of the present invention is the display screen that provides a kind of variable partition backlight, and subregion distribute light dependent sensor is so that the backlight illumination of control respective regions.
The present invention provides a kind of variable partition display screen backlight, and it comprises display screen, some backlights, some light sensors and control module, and wherein, said display screen is divided into several regions; Said backlight is arranged at respectively in the zones of different of display screen, and said backlight passes through the backlight illumination in the added separately voltage swing adjustment respective regions respectively; Said light sensor is arranged at the outside of display screen zones of different respectively, and said light sensor changes the magnitude of voltage of light sensor output in order to the power according to surround lighting; Said control module connects said light sensor and backlight, and the magnitude of voltage that said control module is exported according to light sensor decides to the alive size of backlight in the region.
Especially, said display screen is a LED display.
Especially, said backlight illumination is pressed the brightness degree division.
Especially, when the brightness degree on the display screen in two adjacent areas is inconsistent, through gradual change brightness demonstration, increase progressively gradually towards high-brightness region by low brightness area at the place, zone boundary.
Especially, said zone boundary is that the adjacent area critical line extends half area respectively in adjacent area.
Compared with prior art, the present invention utilizes a plurality of light sensors, and they are distributed in the display screen zones of different, is used for responding to a little less than the environmental light intensity of zones of different, so that the backlight illumination of control respective regions.
[description of drawings]
Fig. 1 is the synoptic diagram in display screen subsection territory.
Fig. 2 is the functional-block diagram of variable partition of the present invention display screen backlight.
Fig. 3 is the synoptic diagram that two adjacent areas show through gradual change brightness.
[embodiment]
See also 1, shown in Figure 2, the present invention provides a kind of variable partition display screen backlight, and it comprises display screen 10, some backlights 20, some light sensors 30 and control module 40, and in present embodiment, said display screen 10 is a LED display.Said display screen 10 is divided into several regions 11; In present embodiment, said display screen 10 is divided into eight zones 11; The quantity of setting area 11 as required.Said backlight 20 is arranged at respectively in the zones of different 11 of display screen 10, and said backlight 20 passes through the backlight illumination in the added separately voltage swing adjustment respective regions 11 respectively; Said backlight illumination is pressed brightness degree and is divided, and for example, brightness degree comprises the 1-8 level, and the 1st grade the darkest, and backlight 20 added voltages are minimum; The 8th grade the brightest, and backlight 20 added voltages are maximum.
Said light sensor 30 is arranged at the outside of display screen 10 zoness of different 11 respectively; In present embodiment; Eight light sensors 30 are laid in the outside in eight zones 11 altogether, and said light sensor 30 changes the magnitude of voltage of light sensor 30 outputs in order to the power according to surround lighting; When the surround lighting that senses when light sensor 30 was strong, the magnitude of voltage of light sensor 30 outputs was bigger; And the surround lighting that senses when light sensor 30 is when more weak, and the magnitude of voltage of light sensor 30 outputs is less.Said control module 40 connects said light sensor 30 and backlight 20, and the magnitude of voltage that said control module 40 is exported according to light sensor 30 decides to 20 alive sizes of backlight in the region.
See also shown in Figure 3ly, when the brightness degree in two adjacent areas 11 is inconsistent, through gradual change brightness demonstration, increase progressively gradually towards high-brightness region 11 by low brightness area 11 at regional 11 boundaries.Said regional 11 borders are that adjacent area 11 critical lines extend half area respectively in adjacent area 11.For example; The brightness degree of left area is 5, and the brightness degree in zone, the right is 7 o'clock, and the zone boundary then is incremented to 7 by 5 gradually; Thereby make the display brightness of display screen 10 reach balance, to avoid because of the different phenomenons that cause the sudden change of display screen 10 light and shades of zones of different 11 brightness degrees.
The present invention utilizes a plurality of light sensors 30, and they are distributed in display screen 10 zoness of different 11, is used for responding to a little less than the environmental light intensity of zones of different 11, so that the backlight illumination of control respective regions.
Claims (5)
1. display screen that variable partition is backlight is characterized in that:
Display screen, it is divided into several regions;
Some backlights are arranged at respectively in the zones of different of display screen, and said backlight passes through the backlight illumination in the added separately voltage swing adjustment respective regions respectively;
Some light sensors are arranged at the zones of different of display screen respectively, and said light sensor changes the magnitude of voltage of light sensor output in order to the power according to surround lighting;
Control module, it connects said light sensor and backlight, and the magnitude of voltage that said control module is exported according to light sensor decides to the alive size of backlight in the region.
2. variable partition according to claim 1 display screen backlight is characterized in that: said display screen is a LED display.
3. variable partition according to claim 1 display screen backlight is characterized in that: said backlight illumination is pressed brightness degree and is divided.
4. variable partition according to claim 1 display screen backlight; It is characterized in that: when the brightness degree on the display screen in two adjacent areas is inconsistent; The place shows through gradual change brightness in the zone boundary, is increased progressively gradually towards high-brightness region by low brightness area.
5. variable partition according to claim 4 display screen backlight is characterized in that: said zone boundary is that the adjacent area critical line extends half area respectively in adjacent area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105113934A CN102456317A (en) | 2010-10-19 | 2010-10-19 | Display screen with adjustable partial backlights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105113934A CN102456317A (en) | 2010-10-19 | 2010-10-19 | Display screen with adjustable partial backlights |
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| CN102456317A true CN102456317A (en) | 2012-05-16 |
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| CN2010105113934A Pending CN102456317A (en) | 2010-10-19 | 2010-10-19 | Display screen with adjustable partial backlights |
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| CN103680469A (en) * | 2013-12-23 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display and adjusting method for brightness and contrast degree of liquid crystal display |
| CN105469749A (en) * | 2016-01-15 | 2016-04-06 | 京东方科技集团股份有限公司 | Liquid crystal display and display device |
| CN105955692A (en) * | 2016-04-25 | 2016-09-21 | 广东欧珀移动通信有限公司 | Regulation method and device capable of aiming at display screen of intelligent terminal, and intelligent terminal |
| CN106409223A (en) * | 2016-10-28 | 2017-02-15 | 深圳市华星光电技术有限公司 | Brightness adjusting method of OLED display device and OLED display device |
| US20170042418A1 (en) * | 2012-03-09 | 2017-02-16 | Ocuspecto Oy | Method for assessing function of the visual system and apparatus thereof |
| CN106548755A (en) * | 2016-12-07 | 2017-03-29 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
| CN107368239A (en) * | 2017-06-19 | 2017-11-21 | 联想(北京)有限公司 | A kind of screen display parameters method of adjustment and electronic equipment |
| CN107644626A (en) * | 2017-10-26 | 2018-01-30 | 苏州华兴源创电子科技有限公司 | A kind of method that LED backlight and its brightness and brightness uniformity automatically adjust |
| CN108538265A (en) * | 2016-03-31 | 2018-09-14 | 青岛海信移动通信技术股份有限公司 | A kind of the display brightness method of adjustment and device of liquid crystal display |
| CN108766362A (en) * | 2018-05-04 | 2018-11-06 | 广东小天才科技有限公司 | A kind of regulating system of screen intensity, method and device |
| CN109830202A (en) * | 2013-07-19 | 2019-05-31 | 株式会社半导体能源研究所 | Semiconductor device |
| WO2019196385A1 (en) * | 2018-04-08 | 2019-10-17 | 京东方科技集团股份有限公司 | Near-eye display and method for adjusting brightness of near-eye display |
| CN111107616A (en) * | 2019-12-25 | 2020-05-05 | 惠州Tcl移动通信有限公司 | Light sensor control method and device and terminal |
| CN111276087A (en) * | 2020-03-24 | 2020-06-12 | 联想(北京)有限公司 | Screen brightness adjusting method and device and electronic equipment |
| CN112102791A (en) * | 2020-10-30 | 2020-12-18 | 重庆长安汽车股份有限公司 | Vehicle-mounted display screen partition brightness adjusting system and control method |
| CN112967674A (en) * | 2021-02-04 | 2021-06-15 | 维沃移动通信有限公司 | Electronic device and brightness control method |
| CN114170972A (en) * | 2021-11-09 | 2022-03-11 | 瑞芯微电子股份有限公司 | Backlight control method and device in multi-display-screen system |
| CN115079487A (en) * | 2022-06-15 | 2022-09-20 | 深圳中易健康科技有限公司 | Self-adaptive light supplementing device and method applied to tongue image shooting |
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| US20170042418A1 (en) * | 2012-03-09 | 2017-02-16 | Ocuspecto Oy | Method for assessing function of the visual system and apparatus thereof |
| US10537240B2 (en) * | 2012-03-09 | 2020-01-21 | Ocuspecto Oy | Method for assessing function of the visual system and apparatus thereof |
| CN103021329A (en) * | 2012-11-27 | 2013-04-03 | 深圳市奥拓电子股份有限公司 | Light-emitting diode (LED) full color screen system and brightness adjusting method thereof |
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| CN103680469A (en) * | 2013-12-23 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display and adjusting method for brightness and contrast degree of liquid crystal display |
| CN103680469B (en) * | 2013-12-23 | 2015-12-30 | 深圳市华星光电技术有限公司 | The method of adjustment of the brightness and contrast of a kind of liquid crystal display and liquid crystal display thereof |
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| CN105955692A (en) * | 2016-04-25 | 2016-09-21 | 广东欧珀移动通信有限公司 | Regulation method and device capable of aiming at display screen of intelligent terminal, and intelligent terminal |
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| CN107368239A (en) * | 2017-06-19 | 2017-11-21 | 联想(北京)有限公司 | A kind of screen display parameters method of adjustment and electronic equipment |
| CN107644626A (en) * | 2017-10-26 | 2018-01-30 | 苏州华兴源创电子科技有限公司 | A kind of method that LED backlight and its brightness and brightness uniformity automatically adjust |
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| CN108766362A (en) * | 2018-05-04 | 2018-11-06 | 广东小天才科技有限公司 | A kind of regulating system of screen intensity, method and device |
| CN111107616A (en) * | 2019-12-25 | 2020-05-05 | 惠州Tcl移动通信有限公司 | Light sensor control method and device and terminal |
| CN111276087A (en) * | 2020-03-24 | 2020-06-12 | 联想(北京)有限公司 | Screen brightness adjusting method and device and electronic equipment |
| CN111276087B (en) * | 2020-03-24 | 2021-09-14 | 联想(北京)有限公司 | Screen brightness adjusting method and device and electronic equipment |
| CN112102791A (en) * | 2020-10-30 | 2020-12-18 | 重庆长安汽车股份有限公司 | Vehicle-mounted display screen partition brightness adjusting system and control method |
| CN112967674A (en) * | 2021-02-04 | 2021-06-15 | 维沃移动通信有限公司 | Electronic device and brightness control method |
| CN114170972A (en) * | 2021-11-09 | 2022-03-11 | 瑞芯微电子股份有限公司 | Backlight control method and device in multi-display-screen system |
| CN115079487A (en) * | 2022-06-15 | 2022-09-20 | 深圳中易健康科技有限公司 | Self-adaptive light supplementing device and method applied to tongue image shooting |
| CN115079487B (en) * | 2022-06-15 | 2024-03-29 | 深圳中易健康科技有限公司 | Self-adaptive light supplementing device and method applied to tongue image shooting |
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Application publication date: 20120516 |