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TFT array substrate of flexible liquid crystal panel and manufacturing method of TFT array substrate

An array substrate and flexible liquid crystal technology, applied in nonlinear optics, optics, instruments, etc., can solve problems such as exceeding the glass transition temperature of plastic substrates, and achieve the effect of overcoming manufacturing difficulties and simplifying manufacturing steps

Active Publication Date: 2018-11-16
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Application Information

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Problems solved by technology

At present, the main material used for this alignment layer is polyimide, which has the characteristics of high reliability and excellent dielectric properties, but the disadvantage of this type of material is that it generally requires a high temperature of about 200°C to cure during the preparation process. , which exceeds the glass transition temperature of most plastic substrates

Method used

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  • TFT array substrate of flexible liquid crystal panel and manufacturing method of TFT array substrate
  • TFT array substrate of flexible liquid crystal panel and manufacturing method of TFT array substrate
  • TFT array substrate of flexible liquid crystal panel and manufacturing method of TFT array substrate

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Embodiment Construction

[0038] The problem to be solved by the present invention is to provide a flexible liquid crystal panel without a low-temperature alignment layer but still has an alignment function TFT array substrate and a manufacturing method thereof. Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 and image 3 As shown, a method for manufacturing a TFT array substrate of a flexible liquid crystal panel in this embodiment includes:

[0040] S01. Prepare an amorphous silicon layer on the surface of the substrate; since the substrate is a rigid substrate, usually made of glass, in order to facilitate the separation of the TFT array from the substrate, it is necessary to first separate the substrate from the TFT array. laying a layer of amorphous silicon, the amorphous silicon is amorphous silicon, and the lattice network between atoms is arranged in disorder;

[0041] S02, preparing a TFT array o...

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Abstract

The invention discloses a manufacturing method of a TFT array substrate of a flexible liquid crystal panel. The manufacturing method comprises the steps of preparing an amorphous silicon layer on thesurface of a substrate; preparing a TFT array on the surface of the amorphous silicon layer; cleaning the surface of the TFT array; manufacturing a polydimethylsiloxane substrate on the surface of theTFT array; using lasers to irradiate the TFT array from the back of the substrate, so that the TFT array is separated from the amorphous silicon layer; sticking and fixing the TFT array to a flexiblesubstrate; stripping the polydimethylsiloxane substrate on the TFT array in the same direction. By means of the manufacturing method, polydimethylsiloxane on the TFT array substrate is striped in thesame direction, so that polydimethylsiloxane left on the TFT array substrate can conduct alignment on liquid crystal molecules in the required direction. Manufacturing of a low-temperature alignmentlayer is not needed any more, existing manufacturing steps are simplified, the manufacturing difficulty is overcome, and the manufacturing method is suitable for a production technology of the flexible liquid crystal panel.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method for manufacturing a TFT array substrate of a flexible liquid crystal panel. Background technique [0002] Flexible LCD (Liquid Crystal Display, liquid crystal panel) display devices have broad application prospects, but the flexible LCD faces many challenges in the manufacturing process. One of the problems faced in the manufacture of flexible LCD is that the components of the flexible LCD need to be fabricated on a flexible substrate, but most of the existing flexible substrate materials cannot withstand the high temperature during the process. Combined with the existing technology, there are currently three commonly used methods to solve this problem: one method is to replace inorganic materials with organic materials to make TFT (Thin Film Transistor, thin film transistor) array substrates, and at the same time use the evaporation process that requires ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/1337H01L27/12
CPCG02F1/133711G02F1/136277H01L27/1214
Inventor 石钰陈兴武
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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