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Light emitting diode display device and method of manufacturing same

A technology of light-emitting diodes and display devices, applied in semiconductor devices, electrical components, circuits, etc., can solve problems such as brightness decline

Pending Publication Date: 2022-08-05
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the objectives of the present invention is to provide a light-emitting diode display device that can improve the problem of decreased brightness due to total reflection
[0004] Another object of the present invention is to provide a method for manufacturing a light-emitting diode display device, which can improve the problem that the brightness of the light-emitting diode display device decreases due to total internal reflection.

Method used

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  • Light emitting diode display device and method of manufacturing same
  • Light emitting diode display device and method of manufacturing same
  • Light emitting diode display device and method of manufacturing same

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0052] figure 1 It is a schematic cross-sectional view of a light emitting diode display device according to an embodiment of the present invention.

[0053] Please refer to figure 1 , the light-emitting diode display device 10 includes a circuit substrate CB, a dielectric layer 200 , a light-emitting diode 410 and a reflective layer 312 . In this embodiment, the light emitting diode display device 10 further includes a first buffer layer 300 , an electrode 314 , a bonding pad 316 , a second buffer layer 320 , a first connection structure 402 , a second connection structure 404 , and a die attach adhesive 500 .

[0054] The circuit substrate CB includes a substrate 100 , a first pad 112 , a second pad 114 , a third pad 116 , a first insulating layer 120 , an extension structure 132 , a first signal line 134 , a second signal line 136 and a second insulating layer Layer 140. The circuit board CB has a display area DA and a peripheral area PA. The peripheral area PA is locat...

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PUM

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Abstract

The invention provides a light emitting diode display device and a manufacturing method thereof. The light-emitting diode display device comprises a circuit substrate, a dielectric layer, a light-emitting diode and a reflecting layer. The circuit substrate is provided with a first connecting pad. The dielectric layer is located on the circuit substrate. The dielectric layer is provided with a first through hole overlapped with the first connecting pad; the first surface of the dielectric layer has a plurality of microstructures. The microstructures comprise a plurality of convex microstructures or a plurality of concave microstructures. The light emitting diode is overlapped with the first through hole and is electrically connected with the first connecting pad. The reflective layer is located on the first surface of the dielectric layer and overlaps the microstructure.

Description

technical field [0001] The invention relates to a light emitting diode display device, in particular to a light emitting diode display device with a dielectric layer having a microstructure. Background technique [0002] A light emitting diode is an electroluminescent semiconductor element, which has the advantages of high efficiency, long life, not easy to break, fast response, and high reliability. Therefore, the light emitting diode display device is regarded as a very competitive display device. Generally speaking, in addition to the light emitting diodes, many materials with different refractive indices are included in the light emitting diode display device. When the light emitted by the light emitting diode is transmitted from a medium with a high refractive index to a medium with a low refractive index, and the incident angle of the light is greater than the critical angle, the light will have a problem of total reflection, which will lead to the problem of total ref...

Claims

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Application Information

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IPC IPC(8): H01L33/22H01L33/46H01L27/15H01L33/00
CPCH01L33/22H01L33/46H01L27/156H01L33/005
Inventor 胡又元吴冠贤王世杰黄国有
Owner AU OPTRONICS CORP
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