CN202253141U - Backlight source module and liquid crystal display - Google Patents
Backlight source module and liquid crystal display Download PDFInfo
- Publication number
- CN202253141U CN202253141U CN201120296373XU CN201120296373U CN202253141U CN 202253141 U CN202253141 U CN 202253141U CN 201120296373X U CN201120296373X U CN 201120296373XU CN 201120296373 U CN201120296373 U CN 201120296373U CN 202253141 U CN202253141 U CN 202253141U
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- CN
- China
- Prior art keywords
- source module
- backlight source
- heat pipe
- heat
- capillary wick
- 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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model discloses a backlight source module and liquid crystal display and a liquid crystal display for solving the problem that the LED liquid crystal display has poor radiation effect. The backlight source module comprises a thermal tube and an LED light bar attached on an evaporation end of the thermal tube; the thermal tube is a long and thin rectangle, one side of the thermal tube in width direction is the evaporation end, and the other side of the thermal tube is a condensation end; and the LED light bar is attached on a long and wide surface on one side of the thermal tube. The heat dissipated by the LED light is transmitted to the evaporation end to heat and evaporate the working medium, the heat is rapidly transmitted to the condensation end, and the evaporated heat conducting working medium is anew condensed to liquid at the condensation end and flows back to the evaporation end along a capillary liquid absorption core, then, the heat dissipated by the working LED lamp can be quickly and circularly conducted and the working temperature of the LED lamp can be reduced.
Description
Technical field
The utility model relates to LED LCD backlight source domain, relates in particular to a kind of liquid crystal backlight module and LCD.
Background technology
Because the LED LCD is a developing direction with frivolous at present, make the LED heat radiation become a problem that urgency is to be solved.LED at high temperature works, and will shorten the life-span greatly and reduce brightness.In the existing LED lcd products, mainly realize LED and extraneous heat conduction through the mode that is installed in LED on the aluminum strip and paste the heat conduction adhesive tape, its radiating effect is also bad.
The utility model content
To the problems referred to above, the purpose of the utility model is to provide a kind of backlight source module and LCD with high heat dispersion.
For achieving the above object, the said a kind of backlight source module of the utility model comprises heat pipe at least, is attached at LED lamp bar and backboard on this heat pipe evaporation ends, and said heat pipe and backboard are fitted.
Preferably, said heat pipe is long thin rectangular shape body, and the side on the heat pipe width is an evaporation ends, and opposite side is a condensation end; Said LED lamp bar is attached on the length and width face of heat pipe one side.
Preferably, on said heat pipe inwall, be provided with capillary wick, described capillary wick is a multilayer web-roll core structure distribution.
Preferably, in the length of the capillary wick of the said evaporation ends one side length greater than the capillary wick of said condensation end one side, the density of the capillary wick of said evaporation ends one side is greater than the density of the capillary wick of said condensation end one side.
Preferably, the said capillary wick distribution of lengths from evaporation ends one side to condensation end one side and/or Density Distribution on the heat pipe inwall is degression type and distributes.
Preferably, the condensation end of said heat pipe and backboard are fitted.
For achieving the above object, the said a kind of LCD of the utility model comprises backlight source module and liquid crystal panel, it is characterized in that: said backlight source module is above-mentioned backlight source module.
The beneficial effect of the utility model is:
1, the heat that distributes of LED lamp is delivered to evaporation ends, and heat-conducting work medium receives thermal evaporation, and heat is delivered to condensation end fast, and the heat-conducting work medium after the evaporation becomes liquid in the condensation end regelation, and along with capillary wick flows back to evaporation ends.The heat that distributes when the LED lamp is worked is thus just realized Rapid Cycle heat conduction, reduces the operating temperature of LED lamp;
2, capillary wick is adsorbed on the inwall of obturator, through hair suction resorption heat-conducting work medium, can the return flow line be provided for heat-conducting work medium on the one hand on the one hand;
3, the condensation end of heat pipe and backboard are fitted, and carry out exchanging of large-area and ambient temperature through backboard, reach the high efficiency and heat radiation purpose.
Description of drawings
Fig. 1 is the sketch map of heat pipe and LED lamp bar in the utility model backlight source module;
Fig. 2 is the cutaway view of heat pipe and LED lamp bar in the utility model backlight source module.
The specific embodiment
Below in conjunction with Figure of description the utility model is done further description.
Shown in Fig. 1-2, the said a kind of backlight source module of the utility model embodiment comprises heat pipe 1 at least, is attached at LED lamp bar and backboard on this heat pipe 1 evaporation ends, and said heat pipe and backboard are fitted, and wherein, the condensation end of said heat pipe and backboard are fitted.Heat-conducting work medium in the said heat pipe 1 generally adopts the proportioning combination of water and oil, but is not limited to this type of material, can choose according to actual needs.
As the further embodiment of the utility model, said heat pipe 1 is long thin rectangular shape body, and the side on heat pipe 1 width is an evaporation ends, and opposite side is a condensation end; Said LED lamp bar is attached on the length and width face of heat pipe one side.Because LED lamp 3 is positioned over evaporation ends for the heat production main body with it, meets the design of heat pipe principle.
On said heat pipe 1 inwall, be provided with capillary wick 2, described capillary wick is a multilayer web-roll core structure distribution.In the length of the capillary wick of the said evaporation ends one side length greater than the capillary wick of said condensation end one side, the density of the capillary wick of said evaporation ends one side is greater than the density of the capillary wick of said condensation end one side.Said the capillary wick distribution of lengths from evaporation ends one side to condensation end one side and/or Density Distribution on the heat pipe inwall are degression type and distribute.Such design is to be convenient to the resorption of the mobile and evaporation ends of heat-conducting work medium to the condensation end heat-conducting work medium.
The operation principle of the utility model is: the heat that the LED lamp distributes is delivered to evaporation ends; The heat-conducting work medium of evaporation ends receives thermal evaporation; Heat is delivered to condensation end fast, and the heat-conducting work medium after the evaporation becomes liquid in the condensation end regelation, because capillary wick has adsorption capacity to liquid; And be communicated with between all capillary wicks, then the heat-conducting work medium after the regelation is just through the mobile evaporation ends that is sent in capillary wick.The heat that distributes when the LED lamp is worked is thus just realized distributing fast, reduces the operating temperature of LED lamp.
As the utility model embodiment further, said heat pipe is an aluminium matter heat pipe.Aluminium is better compared to other metals aspect heat conduction, and also conveniently buys.But do not get rid of use than the better metal of aluminium heat conductivility.
Above-mentioned backlight source module is used for present LCD, can obtains good use and development.A kind of LCD comprises backlight source module and liquid crystal panel, and said backlight source module is above-mentioned backlight source module.
More than; Be merely the preferred embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claim was defined.
Claims (7)
1. a backlight source module is characterized in that, comprises heat pipe at least, is attached at LED lamp bar and backboard on this heat pipe evaporation ends, and said heat pipe and backboard are fitted.
2. backlight source module according to claim 1 is characterized in that: said heat pipe is long thin rectangular shape body, and the side on the heat pipe width is an evaporation ends, and opposite side is a condensation end; Said LED lamp bar is attached on the length and width face of heat pipe one side.
3. backlight source module according to claim 1 is characterized in that: on said heat pipe inwall, be provided with capillary wick, described capillary wick is a multilayer web-roll core structure distribution.
4. according to claim 2 or 3 described backlight source module; It is characterized in that: in the length of the capillary wick of the said evaporation ends one side length greater than the capillary wick of said condensation end one side, the density of the capillary wick of said evaporation ends one side is greater than the density of the capillary wick of said condensation end one side.
5. backlight source module according to claim 4 is characterized in that: said the capillary wick distribution of lengths from evaporation ends one side to condensation end one side and/or Density Distribution on the heat pipe inwall are degression type and distribute.
6. backlight source module according to claim 1 is characterized in that: the condensation end of said heat pipe and backboard are fitted.
7. a LCD comprises backlight source module and liquid crystal panel, it is characterized in that: said backlight source module is the described backlight source module of arbitrary claim among the aforesaid right requirement 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120296373XU CN202253141U (en) | 2011-08-15 | 2011-08-15 | Backlight source module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120296373XU CN202253141U (en) | 2011-08-15 | 2011-08-15 | Backlight source module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202253141U true CN202253141U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120296373XU Expired - Lifetime CN202253141U (en) | 2011-08-15 | 2011-08-15 | Backlight source module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202253141U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015085569A1 (en) * | 2013-12-13 | 2015-06-18 | 华为终端有限公司 | Heat radiation structure and electronic device having the heat radiation structure |
| CN111142289A (en) * | 2019-11-04 | 2020-05-12 | 深圳Tcl数字技术有限公司 | Backlight module and display device |
| CN111504107A (en) * | 2020-05-15 | 2020-08-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Tree-shaped structure heat pipe |
| CN114153092A (en) * | 2021-12-09 | 2022-03-08 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN115524885A (en) * | 2022-08-24 | 2022-12-27 | 惠科股份有限公司 | Display device and backlight module thereof |
| CN115528532A (en) * | 2022-09-16 | 2022-12-27 | 深圳市佑明光电有限公司 | Combined white light laser light source module based on diode and fluorescent powder film |
-
2011
- 2011-08-15 CN CN201120296373XU patent/CN202253141U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015085569A1 (en) * | 2013-12-13 | 2015-06-18 | 华为终端有限公司 | Heat radiation structure and electronic device having the heat radiation structure |
| CN105378916A (en) * | 2013-12-13 | 2016-03-02 | 华为终端有限公司 | Heat radiation structure and electronic device having the heat radiation structure |
| CN105378916B (en) * | 2013-12-13 | 2018-09-28 | 华为终端（东莞）有限公司 | Radiator structure and electronic device with the radiator structure |
| CN111142289A (en) * | 2019-11-04 | 2020-05-12 | 深圳Tcl数字技术有限公司 | Backlight module and display device |
| CN111504107A (en) * | 2020-05-15 | 2020-08-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Tree-shaped structure heat pipe |
| CN114153092A (en) * | 2021-12-09 | 2022-03-08 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN114153092B (en) * | 2021-12-09 | 2024-02-09 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN115524885A (en) * | 2022-08-24 | 2022-12-27 | 惠科股份有限公司 | Display device and backlight module thereof |
| US11822116B1 (en) | 2022-08-24 | 2023-11-21 | HKC Corporation Limited | Display device and backlight module thereof including radiator with heat absorption part, condensation part, and pipe |
| CN115524885B (en) * | 2022-08-24 | 2024-04-12 | 惠科股份有限公司 | Display device and backlight module thereof |
| CN115528532A (en) * | 2022-09-16 | 2022-12-27 | 深圳市佑明光电有限公司 | Combined white light laser light source module based on diode and fluorescent powder film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150714 Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150714 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150714 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176, No. 8, Middle West Road, Beijing economic and Technological Development Zone, Beijing Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |