LED light-emitting unit and display panel

Abstract

The invention discloses an LED light-emitting unit and a display panel. The LED light-emitting unit comprises a circuit board and a pixel unit array formed by n rows and m columns of pixel units on the circuit board, wherein both n and m are positive integers greater than or equal to 2. Each pixel unit comprises an IC chip and at least two LED light-emitting wafers, wherein the IC chip is used fordriving the LED light-emitting wafers to emit light. The IC chip comprises at least one data input pin, at least one data output pin, a power input pin and a grounding pin. The power input pins of the IC chips are electrically connected with each other, and the grounding pins of the IC chips are electrically connected with each other. In the same row of pixel units, the data input pin of one IC chip in two adjacent IC chips is electrically connected with the data output pin of the other IC chip. According to the invention, the welding efficiency and the welding firmness of welding the LED light-emitting unit to a large PCB are improved, the wiring of the large PCB is simplified on the premise of ensuring the number of pins of the display unit group, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an LED light emitting unit and a display panel. Background technique [0002] Due to the advantages of high grayscale, large viewing angle, low power consumption and customizable screen shape, LED display screens are widely used in various fields such as industry, transportation, commercial advertising, and information release. [0003] The existing LED display screen is composed of a plurality of independent LED light-emitting units arranged in an array, and each light-emitting unit includes a plurality of LED light-emitting chips, a driver IC for driving a plurality of LED light-emitting chips, and a driver IC for carrying the LED light-emitting chips and The circuit board of the driver IC. The driver IC usually includes a data input pin, a data output pin, a power input pin and a ground pin. Multiple pins of the driver IC are respectively connected to pins on the opposite sid...

AI Technical Summary

Problems solved by technology

[0004] With the rapid development of LED packaging technology, the process has gradually matured, and the requirements for dot pitches have become smaller and smaller. The market demand for dot pitches below P1.0mm has gradually increased, and the size of the corresponding light-emitting units has also continued to shrink. This kind of independent light-emitting unit is small in size, and it is difficult to weld, and it is not easy to be dropped due to weak welding, which is not conducive to transportation; due to the small size of a single light-emitting unit, more light-emitting units need to be welded to prepare a panel of the same size. The welding efficiency is low; in addition, because the panel of the same size needs to weld more light-emitting units, the wiring of the PCB board is more complicated, and the preparation cost of the PCB board is increased.

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