CN203068300U - Backlight source of liquid crystal display (LCD) - Google Patents
Backlight source of liquid crystal display (LCD) Download PDFInfo
- Publication number
- CN203068300U CN203068300U CN2012207286966U CN201220728696U CN203068300U CN 203068300 U CN203068300 U CN 203068300U CN 2012207286966 U CN2012207286966 U CN 2012207286966U CN 201220728696 U CN201220728696 U CN 201220728696U CN 203068300 U CN203068300 U CN 203068300U
- Authority
- CN
- China
- Prior art keywords
- led
- lcd
- backlight
- sources
- optical cement
- 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.)
- Expired - Lifetime
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model provides a backlight source of a liquid crystal display (LCD). The backlight source of the LCD comprises light-emitting diode (LED) backlight sources, an aluminum substrate printed circuit board (PCB) and an optical cement protective film. The LED backlight sources are arranged on the aluminum substrate PCB. The surfaces of the LED backlight sources are coated with the optical cement protective film. The backlight source of the LCD is simple in structure, adopts a high heat-conducting aluminum substrate as a base material of the PCB, and reduces thermal-conduction resistance. The optical cement protective film is adopted to be mixed with diffusive substances, and the protective layer is coated on the surfaces of the LED backlight sources. The protective layer is damp-proof and dustproof, and has good insulating performance. When light rays emitted by point light sources formed by the LED backlight sources pass through the protective layer, the light rays cross one another and are diffused to form area light sources with uniform brightness distribution through the scattering effect of the mixed diffusive substances. White LEDs are used as the main light sources, and are supplemented by red LEDs, green LEDs and blue LEDs to carry out color compensation, and then colors with clear chroma are obtained.
Description
Technical field
The utility model relates to a kind of backlight of LCD.
Background technology
Development along with the backlight of LCD technology, in rugged environment, the performance of backlight of LCD sharply descends in the prior art, its light that sends wavelength instability in high temperature range, colourity is unintelligible, and the service efficiency demand that can not conform, for this reason, need provide a kind of new backlight of LCD to overcome the problems referred to above.
The utility model content
The utility model provides a kind of backlight of LCD, and its purpose is to overcome available liquid crystal display backlight source and occurs wavelength instability, the unsharp problem of colourity easily in adverse circumstances.
A kind of backlight of LCD comprises LED-backlit source, aluminium base PCB and optical cement diaphragm; Wherein, the LED-backlit source comprises White LED, red LED, green LED and blue LED, and the LED-backlit source is arranged on the aluminium base PCB, and the surface-coated in LED-backlit source has the optical cement diaphragm.
Described optical cement diaphragm is doped with diffusible substance, and diffusible substance is silica dioxide granule, and particle diameter is 4-6 μ m.
The luminescent wafer of white light LEDs, red LED, green LED and blue LED all is encapsulated in the lamp chamber, and the upper left corner is white light LEDs, and its excess-three is individual to be respectively red LED, green LED and blue LED by clockwise order.
Described LED-backlit source comprises one at least, is evenly arranged on the aluminium base PCB.
Beneficial effect
The utility model provides a kind of backlight of LCD, comprises the optical cement diaphragm of LED-backlit source, aluminium base PCB and high permeability; Wherein, the LED-backlit source is arranged on the aluminium base PCB, and the surface-coated in LED-backlit source has the optical cement diaphragm.This back light source structure is simple, adopts the aluminium base of high heat conduction as the PCB base material, reduces its thermal conduction resistance; After adopting optical cement diaphragm doping diffusible substance; surface-coated layer protective layer in the LED-backlit source; this protective layer has protection against the tide, dustproof and good insulation performance; when the light that the spot light that is formed by the LED-backlit source simultaneously sends passes through this protective layer; because the scattering process of mixing; carry out cross-diffusion each other, form the area source of illuminance distribution, improved the service efficiency of backlight., be aided with the red, green, blue three-color LED again and carry out color compensation as main light source with White LED, obtain colourity color clearly.
Description of drawings
Fig. 1 structure chart of the present utility model;
Fig. 2 is LED-backlit source structure figure.
The specific embodiment
The utility model is described in further detail by reference to the accompanying drawings.
As shown in Figure 1, a kind of backlight of LCD of the present utility model comprises LED-backlit source (2), aluminium base PCB(1) and the optical cement diaphragm (3) of high permeability; Wherein, LED-backlit source (2) comprises White LED (4) and red LED(5), green LED(6) and blue LED(7), the LED-backlit source is arranged on the aluminium base PCB, the surface-coated in LED-backlit source has the optical cement diaphragm; LED-backlit source quantity is 25, is evenly arranged on the aluminium base PCB.
Described optical cement diaphragm is doped with diffusible substance, and diffusible substance is silica dioxide granule, and particle diameter is 4-6 μ m.
As shown in Figure 2, the particular location of white light LEDs and red LED, green LED and blue LED closes: the luminescent wafer of white light LEDs and red LED, green LED, blue LED is encapsulated in a lamp chamber, the upper left corner is that white light LEDs (4), its excess-three are respectively red LED(5 by clockwise order), green LED(6) and blue LED(7) arrange, and the luminous intensity of all LED can independently be controlled.
Claims (3)
1. a backlight of LCD is characterized in that, comprises LED-backlit source, aluminium base PCB and optical cement diaphragm; Wherein, the LED-backlit source comprises White LED, red LED, green LED and blue LED, and the LED-backlit source is arranged on the aluminium base PCB, and the surface-coated in LED-backlit source has the optical cement diaphragm.
2. backlight of LCD according to claim 1, it is characterized in that, the luminescent wafer of white light LEDs, red LED, green LED and blue LED all is encapsulated in the lamp chamber, and the upper left corner is white light LEDs, and its excess-three is individual to be respectively red LED, green LED and blue LED by clockwise order.
3. backlight of LCD according to claim 2 is characterized in that, described LED-backlit source comprises one at least, is evenly arranged on the aluminium base PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207286966U CN203068300U (en) | 2012-12-26 | 2012-12-26 | Backlight source of liquid crystal display (LCD) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207286966U CN203068300U (en) | 2012-12-26 | 2012-12-26 | Backlight source of liquid crystal display (LCD) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068300U true CN203068300U (en) | 2013-07-17 |
Family
ID=48767080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207286966U Expired - Lifetime CN203068300U (en) | 2012-12-26 | 2012-12-26 | Backlight source of liquid crystal display (LCD) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068300U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899993A (en) * | 2014-04-15 | 2014-07-02 | 捷星显示科技（福建）有限公司 | Novel LED lamp strip and liquid crystal module provided with same |
| CN105042500A (en) * | 2015-08-11 | 2015-11-11 | 苏州晶雷光电照明科技有限公司 | High-power led backlight module |
| CN105070216A (en) * | 2015-08-19 | 2015-11-18 | 绍兴光彩显示技术有限公司 | Lattice module without reflection cover |
| CN108071970A (en) * | 2016-11-10 | 2018-05-25 | 乐雷光电技术（上海）有限公司 | A kind of panchromatic LED projector lamp of four-in-one |
| CN113703224A (en) * | 2021-08-26 | 2021-11-26 | 安徽芯瑞达科技股份有限公司 | Four-wafer Mini LED backlight module |
-
2012
- 2012-12-26 CN CN2012207286966U patent/CN203068300U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899993A (en) * | 2014-04-15 | 2014-07-02 | 捷星显示科技（福建）有限公司 | Novel LED lamp strip and liquid crystal module provided with same |
| CN105042500A (en) * | 2015-08-11 | 2015-11-11 | 苏州晶雷光电照明科技有限公司 | High-power led backlight module |
| CN105070216A (en) * | 2015-08-19 | 2015-11-18 | 绍兴光彩显示技术有限公司 | Lattice module without reflection cover |
| CN108071970A (en) * | 2016-11-10 | 2018-05-25 | 乐雷光电技术（上海）有限公司 | A kind of panchromatic LED projector lamp of four-in-one |
| CN113703224A (en) * | 2021-08-26 | 2021-11-26 | 安徽芯瑞达科技股份有限公司 | Four-wafer Mini LED backlight module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203404682U (en) | Backlight module and liquid crystal display device | |
| CN103207476B (en) | The painting method of a kind of LED-backlit liquid crystal indicator and luminescent material thereof | |
| CN203686775U (en) | LD fill-in light backlight device | |
| CN102565921A (en) | Light guide plate, backlight module and liquid crystal display device | |
| CN203068300U (en) | Backlight source of liquid crystal display (LCD) | |
| CN102891242A (en) | LED (Light-Emitting Diode) package device | |
| CN203275836U (en) | Display device | |
| CN202995193U (en) | LCD (liquid crystal display) flat panel display with LED (light-emitting diode) backlight | |
| CN204083976U (en) | Direct-light type LED backlight module | |
| CN203870923U (en) | Inorganic epitaxial LED display module | |
| CN206210792U (en) | A kind of LED filament and filament lamp | |
| CN203026550U (en) | LED packaging device | |
| CN202598261U (en) | High-light high color rendering index (CRI) warm white light light-emitting diode (LED) lamp and LED module | |
| CN204943064U (en) | The all-round emitting led bulb of Curved surface heterotype | |
| CN203690296U (en) | High power RGBW cross color mixing COB integrated packaging structure | |
| CN202992710U (en) | Light-emitting diode (LED) illumination lamp | |
| CN201866600U (en) | LED backlight source lamp | |
| CN204756596U (en) | LED light source of hi -lite | |
| CN204704789U (en) | A kind of heat dissipation LED road lamp | |
| CN202678308U (en) | COB integrated optical source module | |
| CN103423673A (en) | Full spectrum LED light source module for LCD backlight | |
| CN203500951U (en) | Direct-type LED (light emitting diode) backlight module adopting secondary light distribution and television adopting same | |
| CN202549837U (en) | White light LED (Light-Emitting Diode) | |
| CN202791846U (en) | Simulated sunlight spectrum integrated optical source | |
| CN204732447U (en) | A kind of LED luminous chip package structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190809 Address after: 410205 Room 1001, Building 10, Changsha Zhongdian Software Park, 39 Jianshan Road, Changsha High-tech Development Zone, Changsha City, Hunan Province Co-patentee after: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee after: Hunan Great Wall Science and Technology Information Co.,Ltd. Address before: 410100 No. three, No. 5 East, Changsha Economic Development Zone, Hunan, China Co-patentee before: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |