Lateral type backlight module

A side-entry backlight and module technology, which is applied in the field of side-entry backlight modules, can solve the problems of strong light in the middle of the light-emitting diode, inconsistent excitation of phosphor powder, uneven brightness and darkness of the backlight module, etc., to achieve reduced light intensity and simple structure , Eliminate the effect of dark areas

Inactive Publication Date: 2015-04-15
ZHANJING TECH SHENZHEN +1
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  • Abstract
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  • Claims
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Problems solved by technology

However, since the light-emitting diode has the light-emitting characteristic of strong light intensity in the middle and low light intensity around the periphery, the excitation of the phosphor powder inside the encapsulation layer is inconsistent, so that the brightness of the predetermined light entering the carrier plate is inconsistent, resulting in the backlight module. Uneven light and shade everywhere and the generation of color aperture

Method used

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  • Lateral type backlight module
  • Lateral type backlight module
  • Lateral type backlight module

Examples

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Embodiment Construction

[0014] Such as figure 1 and figure 2 As shown, the side-type backlight module 100 of the first embodiment of the present invention includes a light guide plate 10, a light emitting diode 30 disposed at one end of the light guide plate 10, a plurality of dotted areas 50 disposed on the bottom surface of the light guide plate 10, A plurality of lenses 70 fixed on the top surface of the light guide plate 10 and facing the dot area 50 and two reflectors 90 fixed on the opposite sides of the light guide plate 10 (see image 3 ).

[0015] The light guide plate 10 is a long plate with uniform thickness for mixing the light emitted by the LEDs 30 . The bottom surface of the light guide plate 10 is parallel to the top surface thereof.

[0016] The grid dot regions 50 are arranged in parallel and at intervals along the longitudinal direction of the light guide plate 10 . Each dot area 50 extends along the transverse direction of the light guide plate 10 and runs through the entire ...

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Abstract

The invention discloses a lateral type backlight module. The lateral type backlight module comprises a light guide plate, a light emitting diode arranged on the end surface of the light guide plate, and a lens arranged on the top surface of the light guide plate, wherein the lens comprises a bottom surface attached to the top surface of the light guide plate, and a light distribution surface extending from the bottom surface; and a lattice point area is arranged on the bottom surface, opposite to the top surface, of the light guide plate, and is aligned to the middle of the light distribution surface of the lens. After light rays emitted by the light emitting diode arranged at one side of the lens are scattered by the lattice point area on the bottom surface of the lens and are distributed by the light distribution surface of a light outlet surface, the light intensity in the middle of the lens can be weakened, and the peripheral light intensity of the lens can be intensified, so that the effects of eliminating a dark space and making the light rays uniform are achieved; and the lateral type backlight module has a simple structure and good optical effect.

Description

technical field [0001] The invention relates to a backlight module, in particular to a side-entry backlight module. Background technique [0002] A common edge-lit backlight module includes a carrier board, LEDs installed on the carrier board, a packaging layer covering the LEDs, and a lens arranged above the carrier board and the LEDs. Phosphor powder is evenly distributed in the encapsulation layer. The light emitted by the light-emitting diode excites the fluorescent powder in the encapsulation layer to obtain predetermined light with a specific color temperature and color, and the predetermined light is diffused by the lens for illumination. However, since the light-emitting diode has the light-emitting characteristic of strong light intensity in the middle and low light intensity around the periphery, the excitation of the phosphor powder inside the encapsulation layer is inconsistent, so that the brightness of the predetermined light entering the carrier plate is inco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V19/00F21V5/04F21Y101/02
CPCF21S8/00F21V5/046F21V19/0015
Inventor 蔡政谕
Owner ZHANJING TECH SHENZHEN
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