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Etching liquid supply device, etching device and etching method

A technology of etching device and supply device, which is applied in the direction of optics, instruments, electrical components, etc., can solve the problems of etching liquid changes, uneven etching of glass substrates, etc., and achieve the effect of uniform etching

Inactive Publication Date: 2008-03-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, there is a problem that the composition of the etchant changes as etching is performed on a plurality of glass substrates, and the etching of the glass substrates becomes uneven.

Method used

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  • Etching liquid supply device, etching device and etching method
  • Etching liquid supply device, etching device and etching method
  • Etching liquid supply device, etching device and etching method

Examples

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no. 3 example

[0102] According to the third embodiment, the etching stock solution supply part 240 supplies the etching stock solution to the etching solution container 210 .

[0103] The etching solution container 210 supplies the etching solution into the etching tank 100 by mixing the etching solution returned from the etching tank 100 and the etching solution supplied from the etching solution supply part 240 . During this process, the concentrations of the constituents are compensated according to the concentration measuring unit 220 , the constituent supply unit 230 , and the control unit 250 .

[0104] Next, the etching device provided by the third embodiment of the present invention will be described in detail with reference to FIGS. 12 and 13 .

[0105] The etching tank 100 includes a tank body 110 , an etchant supply pipe 130 and a nozzle 140 .

[0106] As shown in FIGS. 12 and 13 , the etchant supply pipes 130 are provided at the upper and lower portions of the liquid crystal pa...

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Abstract

Disclosed herein is a touch screen panel, a method of manufacturing the touch screen panel, and a display having the touch screen panel. Ultrasonic excitation and detection transducers are attached to the front surface of the image display unit of a display, thereby implementing the touch screen panel, The substrate of the display, that is, the upper surface of the image display unit is used as a surface acoustic wave propagation medium, so that it is not required to manufacture the touch screen panel in a separate substrate and to attach the substrate, in which the touch screen panel is manufactured, to the image display unit of the display, thereby not only preventing degradation of image quality but also not increasing the thickness and size thereof.

Description

technical field [0001] The invention relates to an etching liquid supply device, an etching device and an etching method. Background technique [0002] The liquid crystal display device includes a liquid crystal panel, and the liquid crystal panel includes a first substrate provided with thin film transistors, a second substrate opposite to the first substrate, and a liquid crystal layer between the first substrate and the second substrate. Since the liquid crystal panel is a non-light emitting element, a backlight unit for irradiating light is arranged behind the thin film transistor substrate. The light irradiated by the backlight unit adjusts the amount of transmission according to the alignment state of the liquid crystal layer. [0003] Recently, there has been an increasing demand for thinner liquid crystal panels for mobile products such as cellular phones. The glass substrate accounts for most of the thickness of the liquid crystal panel, and if the thickness of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333C03C15/00
CPCH01L21/67017H01L21/67086H01L21/67253
Inventor 崔浩根郑培铉金龙佑
Owner SAMSUNG ELECTRONICS CO LTD
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