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COB display screen with light isolation device

A technology for display screen and light isolation, applied in the field of display screen, can solve the problems of interference and reduce the 100 resolution of COB display screen, and achieve the effects of convenient processing, simple structure and low cost

Inactive Publication Date: 2020-10-02
BEIJING UNIVERSAL LANBO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there will be overlapping areas between the surface light sources formed by adjacent LED chips 102, and interference will occur, thereby reducing the resolution of the COB display screen 100

Method used

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  • COB display screen with light isolation device
  • COB display screen with light isolation device
  • COB display screen with light isolation device

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below with reference to the accompanying drawings so that those skilled in the art can easily implement them. However, the present invention can also be embodied in many different forms and is not limited to the embodiments described herein. For the sake of clarity, parts irrelevant to describing the gist of the present invention are omitted. Unless otherwise specified, terms used herein have their ordinary meanings in the art.

[0044] figure 2 It is a perspective view of the substrate of the COB display screen according to the present invention. The substrate includes a circuit board 201 and a plurality of LED chip groups 202 arranged on its front side surface. Each LED chip group 202 includes a plurality of LED chips 203 , and each LED chip 203 is directly electrically connected to the circuit board 201 by soldering, and receives corresponding electrical signals from the circuit board 201 . Each LED ch...

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Abstract

The invention provides a COB display screen with a light isolation device. The COB display screen comprises a circuit board and a plurality of LED chip sets welded to the surface of the front side ofthe circuit board. The light isolation device is made of lightproof materials, the bottom of the light isolation device is fixed to the front side surface of the circuit board, and the top of the light isolation device is higher than the LED chip sets. The light isolation device is provided with a plurality of cavities isolated from one another, and each LED chip set is arranged in the corresponding cavity. Due to the blocking effect of the light isolation device, light emitted by the LED chipset located in any cavity cannot be transmitted into the adjacent cavity, and therefore the light emitted by the adjacent LED chipsets cannot interfere with each other, crosstalk between pixels is reduced, and the resolution ratio of the display screen is improved.

Description

technical field [0001] The invention relates to a display screen, in particular to a COB display screen with a light device for spacing pixels. Background technique [0002] COB display (COB: Chip On Board, chip on board) is a type of LED display that directly solders LED chips to a circuit board. Compared with traditional surface-mounted displays, COB displays can achieve smaller pixel pitches and have a lower failure rate. [0003] figure 1 A side view of a prior art COB display screen 100 is schematically shown. like figure 1 As shown, the LED chips 102 are directly soldered on the front surface of the circuit board 101 , and then, a resin material layer 103 is coated on the entire front surface of the circuit board 101 to package each LED chip 102 . The light emitted by each LED chip 102 forms a pixel of the COB display screen 100 . If the haze of the resin material used is low, each pixel is similar to a point light source, and the viewing effect is not good. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33
CPCG09F9/33
Inventor 胡頔迪
Owner BEIJING UNIVERSAL LANBO TECH CO LTD
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