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LED light guide element, LED light source module and direct illumination type LED television

A technology of LED light source and light guide element, which is applied in the direction of optical elements, semiconductor devices of light-emitting elements, televisions, etc., can solve the problem that the distance between the diffusion plate and the LED is difficult to further limit, and achieve the elimination of hot spots, lightening or hot spots Effect

Inactive Publication Date: 2014-04-09
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

However, with the demand for thinner electronic products, such as thinner LED TVs, it is difficult to further limit the distance between the diffuser plate and the LED

Method used

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  • LED light guide element, LED light source module and direct illumination type LED television
  • LED light guide element, LED light source module and direct illumination type LED television
  • LED light guide element, LED light source module and direct illumination type LED television

Examples

Experimental program
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Embodiment Construction

[0014] see figure 1 , The LED light source module 300 provided by the embodiment of the present invention includes an LED module 200 and an LED light guide element 100 . The LED light guide element 100 includes a light-incident surface 10 facing the LED module 200 and a light-emitting surface 20 opposite to it.

[0015] Please also refer to figure 2 , the light incident surface 10 has a plurality of concave lens surfaces 12 . Each of the concave lens surfaces 12 can be spherical or aspherical. The plurality of concave lens surfaces 12 are arranged radially and outwardly from the center of the incident surface, and are arranged in a plurality of concentric circles. The area between two adjacent concave lens surfaces 12 is a plane.

[0016] In this embodiment, the light emitting surface 20 is also a plane. In other embodiments, a plurality of dots may be distributed on the light emitting surface 20 to further diffuse the light, so that the light on the light emitting surfac...

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PUM

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Abstract

The invention relates to an LED guide light element and an LED light source module. The LED light source module comprises an LED module and the LED light guide element. The LED module comprises a circuit board and an LED arranged on the circuit board. The LED light guide element arranged on the circuit board comprises a light incident face and an opposite light emergent face. The light incident face is provided with a plurality of recessed lens faces. The recessed lens faces are radially arrayed from the center of the light incident face to the outside, and are used for diffusing light rays emitted by the LED. The invention further relates to a direct illumination type LED television utilizing the LED light source module. The direct illumination type LED television comprises a display panel arranged above the LED light guide element.

Description

technical field [0001] The invention relates to a light guide element, in particular to an LED light guide element, an LED light source module and a direct-down LED TV using the LED light guide element. Background technique [0002] Light emitting diodes (LEDs) have been widely used as point light sources. At present, the light guide element of the LED is mainly a flat diffuser plate with particles inside the diffuser plate for diffusing light. The diffusion plate often has the problem of hot spot (Hot Spot) due to excessive concentration of light and heat. Therefore, the diffusion plate needs to maintain a large distance from the LED. However, with the demand for thinner electronic products, such as thinner LED TVs, it is difficult to further limit the distance between the diffuser plate and the LEDs. Contents of the invention [0003] In view of this, it is necessary to provide an LED light guide element, an LED light source module and a direct-lit LED TV that can over...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V8/00F21V5/04F21V17/00H04N5/44F21Y101/02F21Y115/10
Inventor 林奕村
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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