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Design of fanout trace in TFT-LCD (thin film transistor-liquid crystal display) narrow frame design

A narrow frame and line width technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of line width + spacing that cannot be realized in fan-out, achieve narrow frame design, increase metal key dimensions, and reduce fan-out height effect

Inactive Publication Date: 2012-11-28
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, the purpose of the present invention is to provide a design of fan-out wiring in the narrow frame design of TFT-LCD, to solve the problem that the existing process conditions cannot realize the line width + spacing of fan-out wiring ≤ 8 μm

Method used

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  • Design of fanout trace in TFT-LCD (thin film transistor-liquid crystal display) narrow frame design
  • Design of fanout trace in TFT-LCD (thin film transistor-liquid crystal display) narrow frame design
  • Design of fanout trace in TFT-LCD (thin film transistor-liquid crystal display) narrow frame design

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Embodiment Construction

[0029] see image 3 As shown, it is a structural schematic diagram of a preferred embodiment of the fan-out wiring design in the TFT-LCD narrow frame design of the present invention. The design of the fan-out lines mainly includes: a first metal layer for etching the first fan-out lines 31 arranged in parallel and a second metal layer for etching the second fan-out lines 32 arranged in parallel, the first The metal layer and the second metal layer are arranged parallel up and down and are generally opposite to each other. The line width and fan-out pitch of the first fan-out line 31 are equal to the line width and fan-out pitch of the second fan-out line 32, so The projection of the first fan-out line 31 on the second metal layer is parallel to the second fan-out line 32 and intersects with the second fan-out line 32 at an equal distance. Since the focus of the present invention is on the design of the fan-out routing, related structures such as substrates, insulating layers,...

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Abstract

The invention relates to a design of fanout trace in a TFT-LCD (thin film transistor-liquid crystal display) narrow frame design. The design of the fanout trace mainly comprises a first metal layer of first fanout traces and a second metal layer of second fanout traces, wherein the first fanout traces are used for etching to form parallel arrangement; the second fanout traces are used for etching to form another parallel arrangement; the first metal layer and the second metal layer are configured in an up-down parallel manner and are opposite substantially; the width and the fanout pitch of the first fanout traces are equal to the width and the fanout space of the second fanout traces; and projections of the first fanout traces on the second metal layer are in parallel to the second fanout traces and are staggered with the second fanout traces at equal distances. By utilizing the design of the fanout trace in the TFT-LCD narrow frame design, the trace pitch can be less than or equal to 8 micrometers, the fanout height is reduced, metal critical dimensions are increased, the resistance load is reduced, and the narrow frame design is realized.

Description

technical field [0001] The invention relates to the design of a narrow frame of a TFT-LCD, in particular to a design of fan-out wiring in the design of a narrow frame of a TFT-LCD. Background technique [0002] TFT (Thin Film Transistor)-LCD is a thin film transistor LCD, which is a kind of active matrix liquid crystal display (AM-LCD). Liquid crystal flat panel display, especially TFT-LCD, is currently the only display device that has fully caught up with and surpassed CRT in terms of brightness, contrast, power consumption, life, volume and weight. It has excellent performance and large-scale production characteristics. With high degree of automation, low cost of raw materials and broad development space, it will quickly become a mainstream product in the new century and a bright spot of global economic growth in the 21st century. [0003] The liquid crystal display panel has an active area and a peripheral circuit area. A plurality of pixels are arranged in the effectiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/1362
CPCG02F1/1345G02F1/136286G02F1/136295
Inventor 阙祥灯张骢泷
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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