Straight-down type backlight source structure, backlight source module and liquid crystal display device

A backlight, direct-type technology, applied in the field of direct-type backlight structure, backlight module and liquid crystal display equipment, can solve the problems of large mixing distance, uneven illumination, high cost, etc., to reduce the mixing distance, The effect of reducing product cost

Active Publication Date: 2014-10-22
CHONGQING BOE DISPLAY LIGHTING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a direct-type backlight structure, backlight module and liquid crystal disp

Method used

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  • Straight-down type backlight source structure, backlight source module and liquid crystal display device
  • Straight-down type backlight source structure, backlight source module and liquid crystal display device
  • Straight-down type backlight source structure, backlight source module and liquid crystal display device

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Example Embodiment

[0030] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore It cannot be understood as a limitation to the present invention.

[0032] In addition, in the description of the present invention, unless...

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Abstract

The invention relates to the technical field of liquid crystal display, in particular to a straight-down type backlight source structure, a backlight source module and a liquid crystal display device. The straight-down type backlight source structure comprises light-transmitting lamp holders, secondary prisms and light sources. Each light-transmitting lamp holder comprises a light passing pipeline, and the light sources are arranged on the lower portions of the secondary prisms, namely the inner sides of the bottom faces of the secondary prisms. Due to the fact that the secondary prisms are respectively of an inverted frustum structure and the top faces of the secondary prisms are concave cambered surfaces, when light of the light sources passes the secondary prisms, one part of light is reflected to a reflecting sheet of the backlight source module from the top faces of the secondary prisms, the other part of light is refracted to the reflecting sheet of the backlight source module from the side faces of the secondary prisms, light emitted by the light sources is pressed downwards, goes out in an emergent mode, and is reflected upwards after making contact with the reflecting sheet at the bottom of a backlight source, and therefore the uniform light outlet effect is formed; meanwhile, the light mixing distance can be reduced, light source blind areas do not exist, the distance between the light sources does not need to be reduced, and product cost can be reduced.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular to a direct-type backlight structure, a backlight module and a liquid crystal display device. Background technique [0002] Currently, liquid crystal display device LCD (Liquid Crystal Display) has become the mainstream in the field of flat panel display. Since the liquid crystal display itself does not emit light, the backlight module is one of the key components of the LCD. The function of the backlight module is to provide sufficient brightness and uniform distribution of light so that it can display images normally. Current LCD backlights are mainly CCFL (cold cathode fluorescent lamp) and LED (light emitting diode). As a new type of backlight, LED has the following obvious advantages compared with the traditional CCFL backlight: better color gamut, internal driving voltage much lower than CCFL, large brightness adjustment range, good power consumption an...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V17/00F21V5/02G02F1/13357F21Y101/02
Inventor 姚永利应文涛解晓丽
Owner CHONGQING BOE DISPLAY LIGHTING CO LTD
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