Baking device for liquid crystal alignment film
A technology of baking device and liquid crystal alignment, which is applied to devices, instruments, coatings and other directions that apply liquid to the surface, can solve problems such as poor sealing, and achieve the effect of solving poor sealing
Active Publication Date: 2022-07-29
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
[0004] The embodiment of the present application provides a liquid crystal alignment film baking device to solve the problem that the existing liquid crystal alignment film baking device is prone to poor sealing
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[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0036] In the glass panel manufacturing process, the PI (Polyimide, polyimide alignment) process is usually to coat the PI liquid on the surface of the glass substrate, and the PI liquid is baked to evaporate the solvent to form a liquid crystal alignment film for subsequent liquid crystal alignment. The solvent in the PI liquid needs to be discharged through the exhaust in time after being baked and volatilized at high temperature. In order ...
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Abstract
The embodiment of the present application provides a baking device for a liquid crystal alignment film, which includes a furnace body, a door body and a sealing member. The furnace body includes a main body and an extension part which are connected to each other. The main body is provided with an accommodating space and an opening communicating with the accommodating space, and the accommodating space is used for accommodating a glass substrate coated with a liquid crystal alignment liquid. The extension part is connected with the body, the extension part has a channel, and the channel communicates with the opening. The door body is used to close the passage. The sealing element is spaced from the door body and arranged in the passage. When the door body closes the passage, the sealing element is in an unfolded state and seals the opening; when the door body does not close the passage, the sealing element is in a folded state and exposes the opening. By separating the sealing member from the door body, the problem of the deformation of the sealing member caused by the deformation of the door body and thus affecting the sealing effect of the sealing member can be reduced.
Description
technical field [0001] The present application belongs to the technical field of liquid crystal display panel manufacturing technology, and in particular relates to a baking device for a liquid crystal alignment film. Background technique [0002] In the manufacturing process of the glass panel, the PI (Polyimide, polyimide alignment) process is to coat the PI liquid on the surface of the glass substrate, and the PI liquid is baked to evaporate the solvent to form a liquid crystal alignment film for subsequent liquid crystal alignment. During the baking process, it is necessary to maintain a constant temperature in the baking device throughout the whole process, and ensuring that the glass substrate is uniformly heated is a necessary condition for the formation of the liquid crystal alignment film. [0003] However, the existing liquid crystal alignment film baking device is prone to the problem of poor sealing. SUMMARY OF THE INVENTION [0004] The embodiment of the pres...
Claims
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IPC IPC(8): G02F1/13G02F1/1337B05D3/02
CPCG02F1/1303G02F1/1337B05D3/0272
Inventor 李世龙
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD