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A kind of oled display device packaging cover plate

A technology for encapsulating cover plates and display devices, which is applied in the manufacture of electric solid-state devices, semiconductor devices, semiconductor/solid-state devices, etc., can solve the problems of reducing the contrast of OLED display devices, achieve the effect of eliminating edge stray light and improving contrast

Inactive Publication Date: 2016-01-20
CHENGDU BEST OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above edge stray light enters the optical path of the system, which will reduce the contrast of OLED display devices

Method used

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  • A kind of oled display device packaging cover plate
  • A kind of oled display device packaging cover plate
  • A kind of oled display device packaging cover plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] like figure 1 As shown, it is a schematic diagram of an existing conventional glass cover plate after encapsulation on the surface of the device, including an OLED (organic light emitting diode) chip 1 and an encapsulation cover plate 2. The area of ​​the encapsulation cover plate 2 is slightly larger than the effective display area of ​​the OLED chip 1. The OLED chip 1 and the packaging cover 2 are glued together by glue 3, and the glue 3 can be distributed only on the edge of the packaging cover 2, or can be covered with the entire lower surface of the packaging cover 2, such as figure 1 shown.

[0019] like figure 2 As shown, it is a schematic diagram of the emitted light beam of the display device under the existing conventional glass cover plate packaging and escaping from the side after multiple reflections in the package cover plate 2 , which is a way of stray light generation. A certain pixel emits light beams at multiple angles, and the beam 7 at a vertical ...

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PUM

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Abstract

The invention discloses a packaging cover plate for an OLED display device. The cover plate is a rectangular flat plate in appearance, has two rectangular surfaces up and down and four narrow and long sides around it, and is made of transparent materials such as quartz glass in the visible light band. . The two bottom surfaces have high flatness, and the upper and lower bottom surfaces are coated with anti-reflection coatings, the edges of the bottom surfaces are coated with reflective layers, and the four sides are coated with matting layers. The invention can reduce the reflected light on the upper and lower surfaces of the cover plate and the stray light emitted from the side, and improve the contrast ratio of the device.

Description

technical field [0001] The invention relates to the technical field of OLED display packaging, in particular to an OLED display device packaging cover plate. Background technique [0002] In the field of display technology, flat-panel display has replaced traditional CRT display and has been popularized. OLED is the latest generation technology in the field of flat-panel display, and is attracting more and more attention due to its many advantages. [0003] Attaching a glass cover plate during packaging can protect the OLED display device from being damaged, and isolate the damage caused by water and oxygen in the air to improve the life of the OLED display device, but the display cannot be affected after the cover plate is attached. It is common to use a quartz glass cover plate to paste on the surface of the chip, but at the same time, the upper and lower surfaces of the cover plate will reflect the light of the OLED multiple times, and transmit it from the side of the cov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52
CPCH10K50/841H10K50/856H10K50/858H10K50/865
Inventor 陈晓明黄健全邱传凯黄剑平
Owner CHENGDU BEST OPTO ELECTRONICS TECH