CN205157931U - Heat radiation structure and LCD are shaded - Google Patents
Heat radiation structure and LCD are shaded Download PDFInfo
- Publication number
- CN205157931U CN205157931U CN201520912629.3U CN201520912629U CN205157931U CN 205157931 U CN205157931 U CN 205157931U CN 201520912629 U CN201520912629 U CN 201520912629U CN 205157931 U CN205157931 U CN 205157931U
- Authority
- CN
- China
- Prior art keywords
- backlight
- heat
- light
- bottom frame
- heat dissipation
- 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 - Fee Related
Links
- 230000005855 radiation Effects 0.000 title abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 25
- 239000003292 glue Substances 0.000 claims description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a heat radiation structure in a poor light, it includes casing, gluey frame, backlight, the circuit board that is shaded, the shading is gluey and the shading conducting strip, wherein, circuit board in a poor light include the intermediate zone that corresponds with the backlight, the first region of the underframe one side of keeping away from the casing and the second district of opposite side, the shading is glued the one end of being close to the underframe and is covered the first region and expose the intermediate zone, the one end of shading conducting strip covers the intermediate zone, and the other end is turned over to roll over and is walked around underframe and attached outside back of the body base plate. The above -mentioned heat radiation structure that is shaded is owing to be provided with the shading conducting strip to the one end of shading conducting strip is attached on back of the body base plate, thereby can transmit the heat of backlight for back of the body base plate through the shading conducting strip, and then has effectively reduced the heat of backlight, has improved the radiating efficiency of backlight. The utility model also discloses a LCD.
Description
Technical Field
The utility model relates to a liquid crystal display field especially relates to a heat radiation structure and LCD in a poor light.
Background
Heating of the liquid crystal display affects its performance and shortens its lifetime. The heating source of the liquid crystal display mainly comes from the backlight source, and the reduction of the heating of the backlight source is important for the liquid crystal display.
Currently, the related components of the backlight in the liquid crystal display are arranged as follows: referring to fig. 1, the housing includes a back substrate 111 ', a bottom frame 112' surrounding the back substrate 111 ', and a frame 113', the rubber frame 120 'is mounted on the housing, the backlight source 130' is mounted in the rubber frame 120 ', the backlight circuit board 140' is connected to a side of the backlight source 130 'far away from the back substrate 111', and the backlight circuit board 140 'extends out of the housing from one end of the bottom frame 112'; the light blocking paste 150 'covers the entire portion of the backlight circuit board 140' inside the case, and then a PET layer (polyethylene terephthalate layer) 170 'is attached to the outside of the light blocking paste 150' corresponding to the backlight circuit board 140 ', the PET layer 170' serving to isolate the light blocking paste from the panel glass (not shown). With the above arrangement, the heat of the backlight 130 ' cannot be transmitted to the outside in time through the light shielding glue 150 ' and the PET layer 170 ', so that the heat of the backlight cannot be dissipated in time, and the performance and the service life of the liquid crystal display are affected.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a backlight heat dissipation structure with high heat dissipation efficiency for solving the problem of low heat dissipation efficiency of the backlight source in the liquid crystal display in the prior art.
A backlight heat dissipation structure, comprising:
the shell comprises a back substrate, a bottom frame and a frame, wherein the bottom frame and the frame surround the back substrate;
the rubber frame is arranged on the shell;
the backlight source is arranged at one end, close to the bottom frame, in the rubber frame;
the backlight circuit board is connected to one side of the backlight source, which is far away from the back substrate, and extends out of the shell from one end of the bottom frame; the backlight circuit board comprises a middle area corresponding to the backlight source, a first area positioned at one end of the middle area far away from the bottom frame, and a second area positioned at one end of the middle area close to the bottom frame;
and shading glue for bonding the liquid crystal display screen;
wherein,
one end of the shading glue close to the bottom frame covers the first area and exposes the middle area;
the backlight heat dissipation structure further comprises:
a light-shielding heat-conducting fin for transferring heat to the back substrate;
one end of the shading heat-conducting fin covers the middle area, and the other end of the shading heat-conducting fin reversely folds around the bottom frame and is attached to the outside of the back substrate.
Above-mentioned heat radiation structure is shaded owing to be provided with the shading conducting strip to the one end of shading conducting strip is attached on the back of the body base plate, thereby can transmit the heat of backlight for the back of the body base plate through the shading conducting strip, and then has effectively reduced the heat of backlight, has improved the radiating efficiency of backlight.
In one embodiment, the light-shielding heat-conducting sheet is a graphite heat-conducting sheet.
In one embodiment, the thickness of the light-shielding heat-conducting sheet is 0.03-0.1 mm.
In one embodiment, the light-shielding heat-conducting sheet further covers one end of the light-shielding glue close to the bottom frame.
In one embodiment, the width of the light shielding heat conduction sheet covering the light shielding glue along the direction far away from the bottom frame is more than 0.5 mm.
In one embodiment, the light-shielding heat conduction sheet covers at least an area of the back substrate corresponding to the backlight source along a direction away from the bottom frame.
In one embodiment, the thickness of the light shielding glue is 0.03-0.06 mm.
In one embodiment, the housing is an iron shell.
In one embodiment, the backlight source is an LED lamp.
The utility model also provides a liquid crystal display, this liquid crystal display module assembly includes the utility model provides a heat radiation structure in a poor light.
Above-mentioned LCD owing to adopt the utility model provides a heat radiation structure in a poor light is provided with the shading conducting strip to the one end of shading conducting strip is attached on the back of the body base plate, thereby can transmit the heat of backlight for the back of the body base plate through the shading conducting strip, and then has effectively reduced the heat of backlight, has improved the radiating efficiency of backlight, so can effectively reduce LCD's heat.
Drawings
Fig. 1 is a schematic cross-sectional view of a backlight-related component in the related art.
Fig. 2 is a schematic front view of a backlight heat dissipation structure according to an embodiment of the present invention.
Fig. 3 is a rear view of the backlight heat dissipation structure of fig. 2.
Fig. 4 is a schematic side sectional view of the backlight heat dissipation structure of fig. 2.
Fig. 5 is a schematic view illustrating a bi-directional assembly of the backlight heat dissipation structure of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2-5, a backlight heat dissipation structure 100 according to an embodiment of the present invention includes a housing 110, a plastic frame 120, a backlight source 130, a backlight circuit board 140, a light shielding plastic 150, and a light shielding heat conducting fin 160.
The housing 110 includes a back substrate 111, a bottom frame 112, and a frame 113, wherein the bottom frame 112 surrounds a bottom edge of the back substrate 111, and the frame 113 surrounds the other three edges of the back substrate 111, that is, the bottom frame 112 and the frame 113 surround the back substrate 111 together. In this embodiment, the housing 110 is an iron shell, which can further improve the heat dissipation efficiency.
The rubber frame 120 is mounted on the housing 110, and can be used to fix the backlight 130.
The backlight source 130 is a light source in the backlight assembly, and is mainly used for providing illumination for the liquid crystal display. In the present invention, the backlight assembly is a side-emitting backlight, i.e. the backlight source 130 is located at the side of the liquid crystal display (not shown), and the light is uniformly incident on the light incident surface of the liquid crystal display through a series of optical devices such as a light guide plate. Specifically, the backlight 130 is disposed at an end of the frame 120 close to the bottom frame 112, that is, light is emitted from a direction far away from the bottom frame 112 and is emitted into the lcd panel through an optical device. In this embodiment, the backlight source 130 is an LED lamp, and the LED lamp has low heat generation, so that the problem of backlight heat generation can be effectively avoided. Of course, the backlight source of the present invention is not limited to the LED lamp, and may be other backlight sources, such as a small-sized cold cathode fluorescent lamp.
The backlight circuit board 140 is used to connect the backlight source 130 to a control module (not shown), and the control module controls the backlight source 130 through the backlight circuit board 140. The backlight circuit board 140 is connected to a side of the backlight 130 away from the back substrate 111, and extends out of the casing from one end of the bottom frame 112 so as to be connected to an external control module.
The backlight circuit board 140 is divided into a first region 141, a middle region 142 and a second region 143 according to the position of the backlight circuit board 140 in the backlight heat dissipation structure. The middle area 142 corresponds to the backlight 130, the first area 141 is located on one side of the middle area 142 away from the bottom frame 112, and the second area 143 is located on the other side of the middle area 142, that is, the middle area 142 is located on one side of the bottom frame 112.
The light blocking paste 150 serves to adhere the liquid crystal display panel and also to prevent light from the backlight 130 from leaking from the edge of the liquid crystal display panel. In the present invention, the end of the light shielding glue 150 close to the bottom frame 112 covers the first region 141 of the backlight circuit board 140, and exposes the middle region 142, that is, along the direction close to the bottom frame, the light shielding glue 150 only extends to the first region 141, but not to the middle region 142, so that the middle region 142 is not covered by the light shielding glue 150. Generally, the thickness of the light shielding glue is 0.03-0.06 mm.
The light-shielding heat-conducting sheet 160 is used for transferring heat of the backlight 130 to the back substrate 111, and dissipating the heat through the back substrate 111, thereby achieving the purpose of improving heat dissipation efficiency. And the light-shielding heat-conducting sheet 160 also shields the backlight 130. One end of the light-shielding heat-conducting sheet 160 covers the middle region 142 of the backlight circuit board 140, and the other end is folded back to bypass the bottom frame 112 and attached to the outside of the back substrate 111.
In the present embodiment, the light-shielding heat-conducting sheet 160 is a graphite heat-conducting sheet.
Specifically, the thickness of the light-shielding heat-conducting sheet 160 is 0.03 to 0.1 mm. This can further improve the heat radiation efficiency of the light-shielding heat-conductive sheet 160.
In order to further optimize the heat dissipation efficiency of the light-shielding heat-conducting sheet 160, in the present embodiment, the light-shielding heat-conducting sheet 160 at least covers the area of the back substrate 111 corresponding to the backlight 130 along the direction away from the bottom frame 112; that is, the other end of the light-shielding sheet 160 extends at least upward beyond the height of the backlight source after bypassing the bottom frame. This can increase the contact area with the back substrate 111, and further improve the heat radiation efficiency of the light-shielding heat-conducting sheet 160.
In this embodiment, the light-shielding heat-conducting sheet 160 further covers one end of the light-shielding glue 150 close to the bottom frame 112. That is, the light-shielding heat-conducting sheet further extends in a direction away from the bottom frame 112 and partially covers the light-shielding glue. This prevents light from passing through a portion of a defective joint between the light-shielding heat-conductive sheet 160 and the light-shielding adhesive 150. Specifically, the width of the light-shielding heat-conducting sheet 160 covering the light-shielding glue 150 in the direction away from the bottom frame 112 is greater than 0.5 mm.
Of course, in the present invention, the light-shielding heat-conducting plate 160 may not cover the light-shielding glue 150, but may be disposed next to the light-shielding glue 150.
The utility model discloses a heat radiation structure is shaded owing to be provided with the shading conducting strip to the one end of shading conducting strip is attached on the back of the body base plate, thereby can transmit the heat of backlight for the back of the body base plate through the shading conducting strip, and then has effectively reduced the heat of backlight, has improved the radiating efficiency of backlight.
The utility model also provides a LCD.
A liquid crystal display, this liquid crystal display module group include the utility model provides a heat radiation structure in a poor light.
Above-mentioned LCD owing to adopt the utility model provides a heat radiation structure in a poor light, so can effectively reduce LCD's heat.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A backlight heat dissipation structure, comprising:
the shell comprises a back substrate, a bottom frame and a frame, wherein the bottom frame and the frame surround the back substrate;
the rubber frame is arranged on the shell;
the backlight source is arranged at one end, close to the bottom frame, in the rubber frame;
the backlight circuit board is connected to one side of the backlight source, which is far away from the back substrate, and extends out of the shell from one end of the bottom frame; the backlight circuit board comprises a middle area corresponding to the backlight source, a first area positioned at one end of the middle area far away from the bottom frame, and a second area positioned at one end of the middle area close to the bottom frame;
and shading glue for bonding the liquid crystal display screen;
it is characterized in that the preparation method is characterized in that,
one end of the shading glue close to the bottom frame covers the first area and exposes the middle area;
the backlight heat dissipation structure further comprises:
a light-shielding heat-conducting fin for transferring heat to the back substrate;
one end of the shading heat-conducting fin covers the middle area, and the other end of the shading heat-conducting fin reversely folds around the bottom frame and is attached to the outside of the back substrate.
2. The backlight heat dissipation structure of claim 1, wherein the light-shielding heat-conducting sheet is a graphite heat-conducting sheet.
3. The backlight heat dissipation structure of claim 1, wherein the light-shielding heat-conducting sheet has a thickness of 0.03-0.1 mm.
4. The backlight heat dissipation structure of claim 1, wherein the light-shielding heat conduction sheet further covers an end of the light-shielding glue near the bottom frame.
5. The backlight heat dissipation structure of claim 4, wherein the width of the light shielding heat conduction sheet covering the light shielding glue along the direction away from the bottom frame is greater than 0.5 mm.
6. The backlight heat dissipation structure of claim 1, wherein the light-shielding thermal conduction sheet covers at least an area of the back substrate corresponding to the backlight source along a direction away from the bottom frame.
7. The backlight heat dissipation structure of claim 1, wherein the thickness of the light shielding glue is 0.03-0.06 mm.
8. The backlight heat dissipation structure of claim 1, wherein the housing is an iron case.
9. The backlight heat dissipation structure of claim 1, wherein the backlight source is an LED lamp.
10. A liquid crystal display comprising the backlight heat dissipation structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912629.3U CN205157931U (en) | 2015-11-13 | 2015-11-13 | Heat radiation structure and LCD are shaded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912629.3U CN205157931U (en) | 2015-11-13 | 2015-11-13 | Heat radiation structure and LCD are shaded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205157931U true CN205157931U (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520912629.3U Expired - Fee Related CN205157931U (en) | 2015-11-13 | 2015-11-13 | Heat radiation structure and LCD are shaded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205157931U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037634A (en) * | 2017-06-26 | 2017-08-11 | 武汉天马微电子有限公司 | Display device |
| CN107238975A (en) * | 2017-07-28 | 2017-10-10 | 信利半导体有限公司 | A kind of backlight module and display module |
| WO2019000711A1 (en) * | 2017-06-28 | 2019-01-03 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN109633983A (en) * | 2019-02-18 | 2019-04-16 | 京东方科技集团股份有限公司 | A kind of backlight module and display module |
| WO2024169024A1 (en) * | 2023-02-14 | 2024-08-22 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display |
| US12130467B2 (en) | 2023-02-14 | 2024-10-29 | Radiant Opto-Electronics Corporation | Backlight module and display device |
-
2015
- 2015-11-13 CN CN201520912629.3U patent/CN205157931U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037634A (en) * | 2017-06-26 | 2017-08-11 | 武汉天马微电子有限公司 | Display device |
| WO2019000711A1 (en) * | 2017-06-28 | 2019-01-03 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN107238975A (en) * | 2017-07-28 | 2017-10-10 | 信利半导体有限公司 | A kind of backlight module and display module |
| CN109633983A (en) * | 2019-02-18 | 2019-04-16 | 京东方科技集团股份有限公司 | A kind of backlight module and display module |
| CN109633983B (en) * | 2019-02-18 | 2021-11-05 | 京东方科技集团股份有限公司 | Backlight module and display module |
| WO2024169024A1 (en) * | 2023-02-14 | 2024-08-22 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display |
| US12130467B2 (en) | 2023-02-14 | 2024-10-29 | Radiant Opto-Electronics Corporation | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee after: CHINA DISPLAY OPTOELECTRONICS TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee before: TCL DISPLAY TECHNOLOGY (HUIZHOU) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |