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Liquid knife

A liquid knife and liquid technology, which is applied in the direction of cleaning flexible objects, optics, instruments, etc., can solve problems such as uneven spraying and uneven brightness of display panels

Active Publication Date: 2019-08-09
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a liquid knife, which can prevent the water vapor or splashed liquid from converging and falling into the water curtain to cause uneven spraying, and improve the defect of uneven brightness (mura) on the display panel caused by uneven liquid pressure. Improves critical dimension (CD) uniformity, thereby improving uniformity of display panel brightness

Method used

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Embodiment Construction

[0020] Reference in the detailed description to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The same terms appearing in different positions in the specification are not necessarily limited to the same implementation, but should be understood as independent or alternative implementations from other embodiments. Inspired by the technical solutions disclosed in the embodiments provided in the present invention, those skilled in the art should understand that the embodiments described in the present invention may have other combinations or changes of technical solutions consistent with the concept of the present invention.

[0021] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the pres...

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PUM

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Abstract

The invention provides a liquid knife for applying a treatment liquid in a display panel process. The liquid knife comprises a body and a fixing piece, wherein the body comprises a liquid injection channel, a nozzle communicated with the liquid injection channel and at least one groove which is adjacent and arranged in the nozzle, wherein the groove comprises a notch and a closed groove bottom; the size of the notch is smaller than the height of the groove; the fixing piece is fixedly connected with the body; the fixing piece is fixedly connected between the liquid injection channel and the groove. thus, the liquid can be uniformly discharged through the nozzle of the liquid knife, the defect of brightness unevenness (mura) of the display panel caused by uneven liquid pressure is improved,the critical dimension (CD) uniformity is improved and the display panel brightness uniformity is further improved.

Description

technical field [0001] The invention relates to the field of display panel manufacturing process, in particular to a liquid knife used for applying treatment liquid in the display panel manufacturing process. Background technique [0002] In the existing thin film transistor (TFT) wet process technology, a slit-type liquid knife must be used when cleaning or developing the glass substrate, so that the developer, for example, can evenly flow out and be coated on the glass substrate. After the slit-type liquid knife is fixed by screws, the liquid is sprayed on the glass substrate through the slit-type liquid knife to generate splashes, and part of the liquid will splash back onto the liquid knife. After a long time of operation, water vapor will condense on the liquid knife, and the water droplets condensed on the surface of the liquid knife will flow to the edge of the liquid knife under the action of gravity and affect the liquid curtain ejected by the liquid knife, resultin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13B08B11/04
CPCG02F1/1303B08B11/04
Inventor 范志翔
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD