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An LED display unit group and a display panel

A technology of display unit and pixel unit, which is applied in the direction of electrical components, electric solid-state devices, circuits, etc., can solve problems such as slowing down of die-bonding efficiency and low positional accuracy of LED light-emitting chips, and achieve improved die-bonding efficiency and high positional accuracy Effect

Pending Publication Date: 2019-01-18
FOSHAN NATIONSTAR OPTOELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In this way, the efficiency of die bonding will slow down, and at the same time, the position accuracy of the LED light-emitting chip after die bonding will become lower

Method used

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  • An LED display unit group and a display panel
  • An LED display unit group and a display panel
  • An LED display unit group and a display panel

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0036] In the embodiments of the present invention, unless otherwise stated, the used orientation words such as "up, down, left, right, top, bottom" are usually for the direction shown in the drawings or for the vertical direction. The term used to describe the mutual positional relationship of each component in terms of vertical, vertical or gravity direction.

[0037] An embodiment of the present invention provides an LED display unit group, the LED display unit group includes a circuit board, and a pixel unit a...

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Abstract

The invention discloses an LED display unit group, comprising a circuit board, and a pixel unit array composed of n rows and m columns of pixel units on the circuit board, wherein n and m are positiveintegers greater than or equal to 2; Wherein each pixel unit comprises at least two LED light-emitting chips of different light-emitting colors, the LED light-emitting chips comprising A poles and Bpoles with opposite polarities; At least one LED light-emitting chip in each pixel unit is a dual-electrode chip, and A pole and B pole of that dual-electrode chip are positioned on the same surface of the dual-electrode chip; In all pixel cells, the direction of the A-to B-pole connection of the two electrode chips of the same light emitting color points in the same direction. The LED display unit group provided by the invention can improve the fixing efficiency and ensure the positional accuracy of the chip by pointing to the same direction of the A-to-B-pole connection line of the double-electrode chip with the same light-emitting color.

Description

technical field [0001] Embodiments of the present invention relate to LED display technology, and in particular to an LED display unit group and a display panel. Background technique [0002] With the continuous improvement of indoor display application technology, indoor small-pitch LED display screens will become the main technology development space in the future. In order to replace LCD and DLP indoor high-definition display products, the pixel unit density requirements of indoor small-pitch LED display screens are getting higher and higher, namely The pitch between pixel units is required to be smaller and smaller. [0003] Existing small-pitch display screens mainly use 2121, 1515, 1010, 0808 and other independent packaged devices, each packaged device includes 4 pins, and the pins of multiple independently packaged devices are welded on the PCB to form a display panel. With the rapid development of LED display screens towards small pitches, the size of the correspon...

Claims

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Application Information

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IPC IPC(8): H01L27/15
CPCH01L27/156H01L25/0753H01L2224/49113H01L33/38H01L33/62H01L23/5383H01L23/5384
Inventor 顾峰秦快林远彬蔡彬林宇珊
Owner FOSHAN NATIONSTAR OPTOELECTRONICS CO LTD
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