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

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 ...

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

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