Multilayer circuit structure

Abstract

The invention provides a multilayer circuit structure. The circuit layers are formed on the front and back surfaces of a plurality of flexible substrates. The circuit layers which are located on the front and back of the flexible substrates are jointed together by punching holes on the flexible substrates. The flexible substrates are bonded together by an insulating junction layer while the circuit layers disposed on two opposite surfaces of two adjacent flexible substrates electrically connected. Finally, the circuit layers on a plurality of flexible substrates are combined together to form the multilayer circuit structure which is located on the edge non-display region of the liquid crystal array substrate. The multilayer circuit structure, compared to the circuit layer which is disposed on the same surface of the edge non-display region of the liquid crystal array substrate, can reduce width of non-display region of the liquid crystal array substrate and achieve ultra-narrow border display or no border display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a multilayer circuit structure. Background technique [0002] With the development of display technology, liquid crystal display (Liquid Crystal Display, LCD) and organic light emitting diode display (Organic Light Emitting Display, OLED) and other flat display devices have high image quality, power saving, thin body and wide application range. and other advantages, and are widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and become the mainstream of display devices. [0003] see figure 1 , the existing liquid crystal display generally includes: a display panel 100, a source driver chip 200 electrically connected to the upper side of the display panel 100, a gate driver chip 400 electrically connected to the left and right sides of the display panel 10...

AI Technical Summary

Problems solved by technology

[0004] With the development of displays, ultra-narrow bezel or bezel-less has gradually become a trend. Regardless of LCD or OLED, narrow-bezel or bezel-less display can bring a better appearance experience. The omitted WOA wiring increases the distance from the display area to the edge of the display panel, making it difficult to realize borderless or ultra-narrow borders

In particular, when the resolution of the display panel increases from HD to UHD or higher, more area is required to place WOA traces, making it more difficult to narrow the frame area

Furthermore, when GOA technology is adopted, GOA circuits will be fabricated on the array substrate, and the number of stages of GOA circuits will increase with the improvement of panel resolution, thereby making the wiring area occupied by GOA circuits larger and larger. The wiring area occupied by circuits and WOA wiring is too large, which will cause the width of the non-display area of ​​the display panel to be too large, which is not conducive to the realization of ultra-narrow bezel or borderless display

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