CN203055408U - Liquid crystal display allowing backlight to be adjusted automatically - Google Patents
Liquid crystal display allowing backlight to be adjusted automatically Download PDFInfo
- Publication number
- CN203055408U CN203055408U CN 201220700320 CN201220700320U CN203055408U CN 203055408 U CN203055408 U CN 203055408U CN 201220700320 CN201220700320 CN 201220700320 CN 201220700320 U CN201220700320 U CN 201220700320U CN 203055408 U CN203055408 U CN 203055408U
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- backlight
- signal
- processor
- lcd
- liquid crystal
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model discloses a liquid crystal display allowing backlight to be adjusted automatically. The liquid crystal display comprises a liquid crystal display body. A photo-sensing element is arranged on a panel of the display body. An external strong signal is collected by the photo-sensing element to be sent to a processor of the liquid crystal display body, and a control signal is output by the processor to adjust a PWM duty ratio of a backlight lamp plate LED lamp. Through the above display, brightness of the display can be automatically adjusted based on changes of ambient light, so that discomfort of eyes of people, due to over-strong or over-weak light, is minimized. Moreover, the display can normally work outdoor, in an airplane, in a vehicle or under other severe environments.
Description
Technical field
The utility model relates to the LCD with automatic adjusting backlight illumination.
Background technology
Along with development of electronic technology, computer has spread to huge numbers of families.Display is as terminal presentation facility, and it is particularly important to seem in the man-machine interaction process.At present, most of display backlight brightness all is manual method to set up, but under different lightness environment when reaching better display effect, need manually adjust backlight illumination again usually.So both increased user's Operating Complexity, and weakened user's product again and experienced.And most of display brightness is all below 300cd/m2, and this brightness is difficult to see clearly picture at outdoor environment.
The utility model content
Technical problem to be solved in the utility model is to realize a kind ofly can regulating high brightness reinforcing display backlight according to surround lighting automatically.
To achieve these goals, the technical solution adopted in the utility model is: a kind of automatic adjusting LCD backlight, comprise the LCD body, the panel of described monitor body is provided with light sensitive component, the outside light intensity signal of described light sensitive component collection is delivered to the processor of LCD body, and described processor is regulated the brightness of backlight luminous board LED lamp according to outside light intensity signal output control signal.
Described LCD body is that its inside is provided with multilayer module, is followed successively by screen assembly, panel framework, insulation spacer, backlight luminous board, framework backlight and processor and power-supply system by panel and bonnet sealing.
Described processor comprises signal processing unit and MCU unit, described MCU unit receives the light sensitive component size of current variable signal that amplifies through amplifier, and output signal drives the PWM dutycycle of backlight luminous board LED lamp, described signal processing unit receiving video signals, and the processed video signal is delivered to screen assembly shows.
Advantage of the present utility model is that such display can change adjusting display brightness automatically according to surround lighting, reduces the too high or too low discomfort to human eye of brightness.Display can be outdoor in addition, operate as normal under the rugged surroundings such as airborne and vehicle-mounted.
Description of drawings
Below the content of every width of cloth accompanying drawing expression in the utility model instructions and the mark among the figure are made brief description:
Fig. 1 position display is formed structural representation;
Fig. 2 is the display circuit composition frame chart;
Mark among the above-mentioned figure is: 1, panel; 2, light sensitive component; 3, screen assembly; 4, panel framework; 5, insulation spacer, 6, backlight luminous board; 7, framework backlight; 8, processor; 9, power-supply system; 10, bonnet; 801, signal processing unit; 802, MCU unit.
Embodiment
Referring to Fig. 1 as can be known, constitute all-sealed structure by panel 1 and bonnet 10 before and after the LCD body, panel 1 is provided with multilayer module with the enclosure interior that bonnet 10 constitutes, be followed successively by screen assembly 3, panel framework 4, insulation spacer 5, backlight luminous board 6, framework 7 backlight and processor 8 and power-supply system 9, wherein the panel 1 at monitor body is provided with light sensitive component 2(such as photoresistance), each layer joint is provided with padded coaming, thereby each unit module of safe and reliable reinforcing, the LCD body can prevent steam effectively in cleaning shop one-shot forming assembling, dust is to the influence of display reliability.
After connecting civil power to display, power-supply system 9 is converted to inner each unit required voltage 12V and 28V to civil power, when LCD is started working, referring to Fig. 2 as can be known, after light sensitive component 2 is gathered external ambient light, the power of surround lighting is converted to the variation of size of current, current signal is amplified MCU unit 802 pins (about 0 ~ 3.3V changes) of input processor 8 by the OP amplifier, MCU unit 802 computing environment light and human eye receive brightness value, more satisfactory value curve, automatically regulate the PWM dutycycle that drives backlight luminous board 6LED lamp, thereby regulate backlight illumination to human eye according to surround lighting and accept ideal value, reach the function of automatic adjusting LCD backlight.
The signal processing unit 801 of processor 8 is cores of total system, mainly (RGB is to the conversion of YUV color space by input signal being carried out various conversion and processing, the scalar processing of signal etc.) with LVDS or the output of TTL signal form, signal processing unit 801 is finished by special IC (ASIC), and extensive SOC is used as the core of signal plate.This SOC comprises two MCU and special image processor, MCU is used for controlling and managing whole SOC system and extraneous contact, and image processor is used for the VGA signal of input is handled specially, and the processed video signal sent to screen assembly 3 receive signal processing units, by screen assembly 3 with the clear display frame of LVDS signal.
By reference to the accompanying drawings the present invention has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving design of the present invention and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (3)
1. regulate LCD backlight automatically for one kind, comprise the LCD body, it is characterized in that: the panel of described monitor body (1) is provided with light sensitive component (2), described light sensitive component (2) is gathered the processor (8) that outside light intensity signal is delivered to the LCD body, and described processor (8) is regulated the brightness of backlight luminous board (6) LED lamp according to outside light intensity signal output control signal.
2. automatic adjusting according to claim 1 LCD backlight, it is characterized in that: described LCD body is by panel (1) and bonnet (10) sealing, its inside is provided with multilayer module, is followed successively by screen assembly (3), panel framework (4), insulation spacer (5), backlight luminous board (6), framework backlight (7) and processor (8) and power-supply system (9).
3. automatic adjusting according to claim 1 and 2 LCD backlight, it is characterized in that: described processor (8) comprises signal processing unit (801) and MCU unit (802), described MCU unit (802) receives light sensitive component (2) the size of current variable signal that amplifies through amplifier, and output signal drives the PWM dutycycle of backlight luminous board (6) LED lamp, described signal processing unit (801) receiving video signals, and the processed video signal is delivered to screen assembly (3) shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700320 CN203055408U (en) | 2012-12-18 | 2012-12-18 | Liquid crystal display allowing backlight to be adjusted automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700320 CN203055408U (en) | 2012-12-18 | 2012-12-18 | Liquid crystal display allowing backlight to be adjusted automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055408U true CN203055408U (en) | 2013-07-10 |
Family
ID=48738337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220700320 Expired - Lifetime CN203055408U (en) | 2012-12-18 | 2012-12-18 | Liquid crystal display allowing backlight to be adjusted automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055408U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680425A (en) * | 2013-12-19 | 2014-03-26 | 合肥京东方光电科技有限公司 | Luminance control device of backlight source, backlight source and display device |
| CN104464650A (en) * | 2014-12-29 | 2015-03-25 | 合肥宝龙达光电技术有限公司 | Automatic control system and method for display brightness |
| CN111816130A (en) * | 2020-06-05 | 2020-10-23 | 中国航空工业集团公司上海航空测控技术研究所 | Aircraft airborne display with screen brightness automatic regulating function |
| CN111856803A (en) * | 2020-06-05 | 2020-10-30 | 中国航空工业集团公司上海航空测控技术研究所 | Airborne display unit of airplane |
| CN113450691A (en) * | 2021-06-24 | 2021-09-28 | 京东方科技集团股份有限公司 | Display module and display device |
-
2012
- 2012-12-18 CN CN 201220700320 patent/CN203055408U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680425A (en) * | 2013-12-19 | 2014-03-26 | 合肥京东方光电科技有限公司 | Luminance control device of backlight source, backlight source and display device |
| CN104464650A (en) * | 2014-12-29 | 2015-03-25 | 合肥宝龙达光电技术有限公司 | Automatic control system and method for display brightness |
| CN111816130A (en) * | 2020-06-05 | 2020-10-23 | 中国航空工业集团公司上海航空测控技术研究所 | Aircraft airborne display with screen brightness automatic regulating function |
| CN111856803A (en) * | 2020-06-05 | 2020-10-30 | 中国航空工业集团公司上海航空测控技术研究所 | Airborne display unit of airplane |
| CN113450691A (en) * | 2021-06-24 | 2021-09-28 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113450691B (en) * | 2021-06-24 | 2023-08-08 | 京东方科技集团股份有限公司 | Display module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
|
| CX01 | Expiry of patent term |