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Alignment film solution and preparation method thereof, display substrate and preparation method thereof

A technology of alignment film and solution, applied in coatings, instruments, optics, etc., can solve problems such as afterimages of liquid crystal displays, and achieve the effects of reducing the level of afterimages, reducing costs, and low prices

Inactive Publication Date: 2018-06-29
BOE TECH GRP CO LTD +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide an alignment film solution and its preparation method, a display substrate and its preparation method, which are used to solve the problem that the surface of the existing alignment film layer is easy to absorb residual ions and cause afterimages in liquid crystal displays

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  • Alignment film solution and preparation method thereof, display substrate and preparation method thereof
  • Alignment film solution and preparation method thereof, display substrate and preparation method thereof

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Embodiment Construction

[0027] An alignment film solution and a preparation method thereof, a display substrate and a preparation method thereof provided by the present invention will be described in more detail below with reference to the accompanying drawings and examples.

[0028] An embodiment of the present invention provides an alignment film solution, which contains polyamic acid, soluble polyimide and cellulose-based ion adsorbent.

[0029] In the embodiment of the present invention, a cellulose-based ion adsorbent is added to the alignment film solution, and after the alignment film is made from the alignment film solution, the cellulose-based ion adsorbent can absorb the residual ions in the liquid crystal display to the interior of the alignment film layer, thereby reducing the residual ions adsorbed on the surface of the alignment film layer, and achieving the purpose of reducing the level of afterimage. Moreover, in the production process, the alignment film layer can be formed through a...

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Abstract

An embodiment of the invention discloses an alignment film layer solution, a preparation method thereof, a display substrate and a preparation method of the display substrate. The alignment film layer solution contains polyamide acid, soluble polyimide and a cellulose-based ion adsorbent. After an alignment film layer is prepared from the alignment film layer solution, the cellulose-based ion adsorbent can adsorb residual ions in a liquid crystal display into the alignment film layer, so that the residual ions adsorbed on the surface of the alignment film layer are reduced, and the residual image level is reduced. Further, the alignment film layer can be formed with a one-time film forming technology in a production process, an extra film forming technology is not added while the residual image level is reduced, the implementation is simple, and the production efficiency is high. Besides, the cellulose-based ion adsorbent is widely sourced, renewable and environment-friendly, the price is low, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an alignment film solution and a preparation method thereof, a display substrate and a preparation method thereof. Background technique [0002] In the existing liquid crystal display, in the preparation process of the alignment film layer, only simply polyimide (Polyimide, abbreviated as PI) liquid is spin-coated on the base substrate, and the surface of the alignment film layer formed in this way is rubbed ( After rubbing), there is a rough porous structure on the surface, so that the surface of the alignment film layer is easy to absorb residual ions in the liquid crystal display, resulting in afterimages in the liquid crystal display. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide an alignment film solution and its preparation method, a display substrate and its preparation method, which are used to solve the above-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D179/08C09D101/04C09D101/02C09D151/02G02F1/1337
CPCC08L2205/025C08L2205/03C08L2205/16C09D7/65C09D179/08G02F1/133723C08L79/08C08L1/04C08L1/02C08L51/02
Inventor 袁帅
Owner BOE TECH GRP CO LTD
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