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Edge-lit liquid crystal module, direct-lit liquid crystal module and TV

A liquid crystal module, edge-lit technology, applied in the field of televisions, can solve the problems of the decline of LED luminosity and lifespan, the softening and deformation of the light guide plate, and the shortening of the lifespan of LED lamps, so as to improve the luminosity and service life and ensure the picture quality. , to avoid the effect of softening and deformation

Inactive Publication Date: 2016-03-30
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase in the size of LCD TVs, the increase in the number of LED lamps and the development of high-power, high-brightness integrated LED chips, etc., the heat generated by LED lamps is gradually increasing. When the heat is dissipated, not only the luminosity and life of the LED will drop sharply, but also the surrounding light guide plate will soften and deform. Therefore, the heat dissipation problem of the LED light bar needs to be effectively solved and cannot be ignored.
[0003] In the process of realizing the present invention, the inventor found that: in the prior art, the heat dissipation of LED is conducted from one direction of the LED through the heat dissipation structure, and in the liquid crystal module, the heat dissipation of the LED light bar is usually only from the back plate Dissipate in the direction of one side. This heat dissipation method makes the heat dissipation of the LED light bar slower, which not only limits the power of the LED light, reduces the life of the LED light, but also may cause the surrounding light guide plate to soften and deform. Affect the picture displayed by the LCD module

Method used

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  • Edge-lit liquid crystal module, direct-lit liquid crystal module and TV
  • Edge-lit liquid crystal module, direct-lit liquid crystal module and TV
  • Edge-lit liquid crystal module, direct-lit liquid crystal module and TV

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 or Figure 2(a) or Figure 2(b) or Figure 4 or Figure 5 As shown, the present invention provides a side-lit liquid crystal module, including: a backplane 1, a heat sink 2, a light bar 3, an optical film set 4, a plastic frame 5, a surface frame 6, and a liquid crystal panel 7. The heat dissipation plate 2 is installed on the backplane 1, the light bar 3 is installed on the heat dissipation plate 2, and the optical film group 4 is installed between the backplane 1 and the liquid crystal panel 7, so The light bar 3 is located on the side of the optical film set 4, the plastic frame 5 is wrapped around the periphery of the optical film set 4 and fixedly connected with the back plate 1, and the surface frame 6 is wrapped around the The periphery of the liquid crystal panel 7 is fixedly connected with the plastic frame 5, and also includes a heat conduction sheet 8, and the heat conduction sheet 8 can transfer the heat generated by the light bar 3 to the p...

Embodiment 2

[0075] Such as Figure 6 As shown, this implementation provides a direct type liquid crystal module, including: a backplane 1, a light strip 3, a plastic frame 5 and a surface frame 6, the light strip 3 is installed on the inner wall of the backplane 1, The plastic frame 5 is fixedly connected to the backboard 1, the surface frame 6 is fixedly connected to the plastic frame 5, and further includes a heat conduction sheet 8, one side of the heat conduction sheet 8 is connected to the backboard 1 , and the other side is connected to the surface frame 6 , which can transfer the heat generated by the light bar 3 to the surface frame 6 .

[0076] By setting the heat conduction sheet in the direct-type liquid crystal module, part of the heat generated by the light bar is transferred to the front frame through the heat conduction sheet, and dissipated through the front frame, while the other part of the heat generated by the light bar is directly dissipated through the back plate, so...

Embodiment 3

[0088] This embodiment provides a TV, including the edge-lit liquid crystal module or the direct-lit liquid crystal module provided in any one of the above embodiments.

[0089] The structure of the TV set provided by this embodiment is not shown in the accompanying drawings, and it has good heat dissipation performance. A heat conduction sheet is arranged in the side-light liquid crystal module, and the heat conduction sheet is combined with the aluminum material used on the current back plate. The combined use of the heat sink can effectively conduct all the heat generated by the LED light bar through the back plate, plastic frame and surface frame, which enhances the heat dissipation effect, thereby ensuring the luminosity and service life of the light bar, and avoiding the surrounding area of ​​the light bar. The phenomenon of heat softening and deformation of the light guide plate, etc. prolongs the service life of the TV, and ensures the picture quality of the TV without ...

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PUM

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Abstract

The invention provides a sidelight type liquid crystal module, a direct type liquid crystal module and a television. The sidelight type liquid crystal module comprises a back plate, a heat radiation plate, a lamp strip, a rubber frame and a surface frame, wherein the heat radiation plate is mounted on the back plate; the lamp strip is mounted on the side face of the heat radiation plate; the rubber frame and the back plate are fixedly connected; the surface frame and the rubber frame are fixedly connected; the sidelight type liquid crystal module further comprises a heat-conduction sheet; one side of the heat-conduction sheet is connected with the lamp strip, the heat radiation plate and / or the back plate and the other side of the heat-conduction sheet is connected with the rubber frame and / or the surface frame; the heat generated by the lamp strip can be transmitted to the surface frame. The liquid crystal module provided by the invention is simple in structure; the liquid crystal module is internally provided with the heat-conduction sheet so that the heat generated by the lamp strip can be simultaneously dissipated from the back plate and the surface frame; the heat radiation effect is effectively enhanced, the luminosity of the lamp strip is improved and the service life of the lamp strip is prolonged; the quality of a picture displayed by the liquid crystal module is ensured; and furthermore, the picture quality of the television is ensured.

Description

technical field [0001] The present invention relates to the field of electronic products, in particular to a side-light liquid crystal module, a direct-type liquid crystal module and a television set having the side-light liquid crystal module or the direct-type liquid crystal module. Background technique [0002] Nowadays, in the backlight part of the liquid crystal module, LED lamps are mostly welded to a long strip-shaped circuit board and a long strip of aluminum profile to form an LED light strip. The back of the light strip is combined with an aluminum heat sink to form a light-emitting diode. Thermal structure. However, with the increase in the size of LCD TVs, the increase in the number of LED lamps and the development of high-power, high-brightness integrated LED chips, etc., the heat generated by LED lamps is gradually increasing. When the heat is dissipated, not only the luminosity and life of the LED will drop sharply, but also the surrounding light guide plate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/1333F21V29/74H04N5/64F21V29/70
Inventor 慕丽娜
Owner HISENSE VISUAL TECH CO LTD
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