Unlock instant, AI-driven research and patent intelligence for your innovation.

Light-emitting device

A light-emitting device and light source technology, which is applied in lighting devices, fixed lighting devices, optics, etc., and can solve problems such as the thickness of the backlight module

Active Publication Date: 2011-09-28
AU OPTRONICS CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the direct type backlight module, since the light directly enters the user's eyes, a longer light mixing distance is required to mix the light evenly, which makes the thickness of the backlight module thicker

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light-emitting device
  • Light-emitting device
  • Light-emitting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] In the following multiple embodiments, the light-emitting device has multiple light sources. However, to simplify the description, only figure 1 Multiple light sources are shown, and in Figure 4 to Figure 11 Only one light source is shown as a representative, but it is not intended to limit the present invention.

[0049] figure 1 It is a cross-sectional view of a light emitting device according to an embodiment of the invention. Figure 2A for figure 1 An enlarged view of the recessed structure of the light-emitting device. Figure 2B Illustrated Figure 2A A modified structure of the recessed structure. Figure 3A for figure 1 Schematic diagram of the recessed structure of the light-emitting device. Figure 3B Illustrated Figure 3A A modified structure of the recessed structure.

[0050] Please also refer to figure 1 versus Figure 2A The light emitting device 100 of this embodiment includes a plurality of light sources 110, an optical plate 120, a plurality of recessed st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
angleaaaaaaaaaa
Login to View More

Abstract

The invention relates to a light-emitting device, comprising a plurality of light sources, an optical plate, a plurality of concave structures and at least one light-emitting structure, wherein the optical plate is arranged above the light sources and provided with an upper surface and a lower surface. The concave structures extend towards the inside of the optical plate from the upper surface of the optical plate, each concave structure is correspondingly arranged above one light source, and the lateral surface of each concave structure has at least two inclined angles. A plurality of light condensing structures are arranged in the optical plate, and each light condensing structure is correspondingly arranged below one concave structure. The light-emitting structures are arranged on at least one of the upper surface and the lower surface of the optical plate, wherein light generated by the light sources positioned below each concave structure generates total reflection on the side surface of the concave structure and continuously carries out at least one total reflection in the optical plate and emits light out of the optical plate until coming across the light emergent structure.

Description

Technical field [0001] The present invention relates to a light-emitting device, and in particular to a light-emitting device with better light output uniformity. Background technique [0002] Nowadays, social multimedia technology is quite developed, and most of them benefit from the advancement of semiconductor devices or display devices. As far as displays are concerned, liquid crystal displays with superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation have gradually become the mainstream of the market. Since the liquid crystal display panel does not have a light-emitting function, a backlight module must be arranged under the liquid crystal display panel to provide a surface light source, so that the liquid crystal display panel can achieve the display purpose. [0003] Generally speaking, backlight modules can be divided into side-type backlight modules and direct-type backlight modules. In addition, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V13/00F21V5/00F21V7/04
Inventor 林苏逸林信吾郗任远林淑铃赖政全
Owner AU OPTRONICS CORP