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A direct type directional backlight source

A directivity and backlight technology, which is applied in the field of direct-type directional backlight, can solve problems such as dark areas, and achieve the effects of ensuring directivity, improving technical defects, and improving dark areas

Inactive Publication Date: 2017-05-03
GUANGZHOU MIDSTERO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a direct-type directional backlight to improve the technical defects of existing stereoscopic display devices with dark areas when displaying images.

Method used

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  • A direct type directional backlight source
  • A direct type directional backlight source
  • A direct type directional backlight source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] refer to figure 2 As shown, the direct-type directional backlight of the present invention includes: a semiconductor light source array 1 , a backlight separation structure 2 and an optical diffusion sheet 3 .

[0049] refer to image 3 and Figure 5 As shown, the semiconductor light source array 1 includes: a rectangular aluminum substrate 14 and several semiconductor light sources attached to the aluminum substrate 14, such as LED11. In this embodiment, LED11 is taken as an example to illustrate the semiconductor light source array 1. The LEDs 11 are arranged on the aluminum substrate 14 in the form of chip packaging; the LEDs 11 are arranged in an array. The aluminum substrate 14 is prepared by die stamping.

[0050] Slots 12 are provided at intervals between two adjacent rows of LEDs 11 on the aluminum substrate 14 , and each row of LEDs 11 and the substrate 14 on which they are located form a row of semiconductor light sources.

[0051] The electronic layout s...

Embodiment 2

[0058] refer to Figure 7 As shown, the direct-type directional backlight of the present invention includes: a semiconductor light source array 1 , a backlight separation structure 2 and an optical diffusion sheet 3 .

[0059] refer to image 3 and Figure 5 As shown, the semiconductor light source array 1 includes: a rectangular aluminum substrate 14 and a number of semiconductor light sources bonded and distributed on the aluminum substrate 14, such as LED11. In this embodiment, LED11 is used as an example to illustrate the semiconductor light source array 1; Chip packaging is provided on the aluminum substrate 14; the semiconductor light source array 1 is arranged. The aluminum substrate 14 is prepared by die stamping.

[0060] Each row of LEDs 11 and its substrate 14 form a row of semiconductor light sources.

[0061] The electronic layout scheme of the LED array on the semiconductor light source array 1 is as follows: every three patch LEDs 11 on each column are conne...

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Abstract

The invention provides a direct type directional backlight source comprising a backlight separation structure which comprises a body and an accommodating cavity formed in the body and provided with an opening; a plurality of reflecting separating members which divide the accommodating cavity into a plurality of sub-cavities are arranged in the accommodating cavity; the backlight separation structure is a metal structure; the side surfaces of the reflecting separating members are reflecting surfaces. The backlight source also comprises semiconductor light source arrays and an optical diffusion sheet. Each semiconductor light source array comprises a single-array substrate and semiconductor light sources distributed on the single-array substrate in the length direction of the single-array substrate; one semiconductor light source array is tightly attached to the inside of each sub-cavity; the single-array substrates are attached to the bottoms of the sub-cavities and are metal substrates; the optical diffusion sheet is arranged at the opening of the accommodating cavity in a covering manner, and is tightly pressed against the sub-cavities. The direct type backlight source capable of independently controlled can solve the technical problem that conventional stereo display apparatuses have dark zones in reality images.

Description

technical field [0001] The invention relates to the field of stereoscopic image display, in particular to a direct-type directional backlight source. Background technique [0002] Glasses-free 3D display (also known as autostereoscopic display) is the future development trend of display technology. This technology uses the method of spatial multiplexing of parallax images to realize the visual perception of human eye depth information images. Correspondingly, the left eye is located in the left viewing area and receives the left parallax image, and the right eye is located in the right eye viewing area and receives the right parallax image. Because the left and right parallax images constitute a pair of parallax stereoscopic images, through the fusion mechanism of the brain, the viewer perceives the corresponding depth information in the images, thereby forming stereoscopic vision. [0003] At present, mainstream glasses-free 3D display technologies mainly include three typ...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V11/00F21V7/10F21V19/00F21V5/08F21V8/00F21Y105/10F21Y115/10F21Y115/15
CPCF21S8/00F21V5/08F21V7/10F21V11/00F21V19/0025F21V2200/00
Inventor 周延桂陈朝春范杭李焜阳陈海域梁伟棠
Owner GUANGZHOU MIDSTERO TECH CO LTD