Pixel unit with driving IC, light-emitting device comprising pixel unit and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a light-emitting device, a pixel unit and the light-emitting device. The manufacturing method of the light-emitting device comprises the steps that a driving integrated circuit wafer is provided with a plurality of control circuits; three miniature LEDs which emit red light, green light and blue light after being electrified form a group, and a plurality of groups of miniature LEDs are stacked on a driving integrated circuit wafer and are electrically connected with corresponding control circuits to be packaged. The packaged driving integrated circuit wafer is cut into a plurality of driving ICs through laser, and a control circuit of each driving IC is electrically connected with a single group of miniature LEDs to form a pixel unit of a 3D packaging stack structure; and the electronic circuits, transferred to the single-chip display substrates, of the pixel units are connected in series and combined into a single-chip light-emitting device, and the electronic circuits electrically connected with the display substrates form a multi-chip light-emitting device. Therefore, the pixel unit with the driving IC can be manufactured, the occupied surface area of the display substrate is minimum, the excellent filling rate is provided, the advantage of maximizing the transparent area is achieved, and the pixel unit becomes an ideal choice of a transparent display.

Description

technical field [0001] The present invention relates to the technical field of displays, in particular to a pixel unit, which itself has a driver IC; a light emitting device including the pixel unit; and a manufacturing method, a process for producing the pixel unit and the light emitting device. Background technique [0002] Known displays include a plurality of light emitting elements or pixels controlled by an array of circuits (or active array). The circuit array includes one or more transistors to drive the associated pixels; and one or more capacitors are used to maintain the pixel bias for multiple updates of the display. [0003] So far, through liquid crystal technology (ie, liquid crystal display panel, abbreviated as LCD) and plasma technology (ie, plasma display panel), the display has a light-emitting panel with a large size and a long service life. However, liquid crystal display panels have problems such as power efficiency and directivity, while plasma displ...

AI Technical Summary

Problems solved by technology

Therefore, the cost of control circuits manufactured according to TFT technology is very expensive

At the same time, the production of large-scale active arrays by TFT technology requires large-area deposition of thin-film machines or equipment, which substantially increases the cost of manufacturing and becomes the threshold for a small number of investors to operate high-cost TFT technology.

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