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Backlight module

A backlight module and light source technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of low light uniformity and low light energy utilization rate, and achieve improved light energy utilization rate, high coupling efficiency, and light output. The effect of energy balance

Inactive Publication Date: 2008-03-26
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of low light energy utilization rate and low light output uniformity of the prior art backlight module, the present invention provides a backlight module with high light energy utilization rate and high light output uniformity

Method used

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Examples

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Embodiment Construction

[0014] Please refer to FIG. 2 and FIG. 3 , which are the first embodiment of the backlight module of the present invention. The backlight module 200 includes a point light source 210, a coupler 250, a group of light guide fibers 240 for transmitting light emitted by the point light source 210, and light guide substrates 220 and 230 clamping the group of light guide fibers 240; the coupler 250 connects The point light source 210 and the light guiding fiber 240 .

[0015] The point light source 210 can be a small molecule light emitting diode or a polymer light emitting diode, and a laser diode can also be used to increase brightness.

[0016] The group of light guiding fibers 240 is used to transmit the light beam emitted by the point light source 210 , which is easy to couple with the point light source 210 and can effectively improve the utilization rate of light energy of the backlight module 100 , thereby increasing the brightness. The group of light-guiding optical fibers...

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Abstract

This invention relates to a backlighted module including at least one point light source, an upper light conduction base plate and a lower conduction base plate, at least one couple and at least one conduction fiber clamped by the two base plates, groove perturbation structure is set at the two light conduction base plates to match with the light conduction fiber. The depth of the groove perturbation structure increases steadily far from the point light source end.

Description

【Technical field】 [0001] The invention relates to a backlight module, in particular to a backlight module applied to a liquid crystal display. 【Background technique】 [0002] Due to the advantages of lightness, thinness, and low power consumption, liquid crystal displays are widely used in modern information equipment such as notebook computers, mobile phones, and personal digital assistants. Since the liquid crystal itself does not have light-emitting properties, it is necessary to provide a backlight module for it to realize the display function. The backlight module needs to have higher light uniformity, so as to improve the display performance using the backlight module. [0003] The prior art backlight module includes a light source and a light guide plate. The light source is arranged relative to the light incident surface of the light guide plate. The light guide plate guides the transmission direction of the light beam emitted from the light source, and converts the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02B3/00
Inventor 张仁淙
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD