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Liquid crystal display device with built-in touch screen

A liquid crystal display device and a technology for contacting electrodes, which are used in static indicators, input/output processes of data processing, optics, etc., and can solve problems such as increased light source, increased power consumption, and increased production costs.

Active Publication Date: 2012-03-21
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] However, production costs increase due to the addition of light sources, and power consumption increases proportionally with the number of light sources

Method used

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  • Liquid crystal display device with built-in touch screen
  • Liquid crystal display device with built-in touch screen
  • Liquid crystal display device with built-in touch screen

Examples

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Embodiment Construction

[0044] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0045] Hereinafter, an LCD device with a built-in touch screen and a method of manufacturing the same according to the present invention will be described with reference to the accompanying drawings.

[0046] An LCD device with a built-in touch screen according to an embodiment of the present invention includes a liquid crystal display module, and a driving circuit for driving the liquid crystal display module.

[0047] The liquid crystal display module includes a liquid crystal panel (in-plane switching mode) having a built-in touch screen for detecting a user's touch point, and a backlight unit for supplying light to the liquid crystal panel.

[0048] The driving circuit includes: a timing controlle...

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PUM

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Abstract

Disclosed is a liquid crystal display device with built-in touch screen, which facilitates to enhance electrostatic discharge (ESD) and touch-sensing efficiency, the LCD device with built-in touch screen comprising a lower substrate which has a pixel array including lines for defining a plurality of pixels, and electrodes for detecting a user's touch; a ground pad which is formed in the periphery of an active area on the lower substrate; an upper substrate which is bonded to the lower substrate with a liquid crystal layer interposed therebetween; a polarizing film which is provided on the upper substrate, the polarizing film for polarizing light emitted; a conductive adhesive layer which is formed of a conductive adhesive material on the upper substrate, the conductive adhesive layer for adhering the polarizing film to the upper substrate; a contact electrode which is provided on the upper substrate, and is electrically connected with the conductive adhesive layer; and a conductive layer which is electrically connected with the contact electrode and the ground pad.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2010-0080323 filed on Aug. 19, 2010, which is hereby incorporated by reference as if fully disclosed herein. technical field [0002] The present invention relates to a flat display device, and more particularly, to a liquid crystal display device with a built-in touch screen that contributes to improving electrostatic discharge (EDS) and touch detection efficiency. Background technique [0003] According to the development of various mobile electronic devices, such as mobile terminals such as notebook computers, there is an increasing demand for suitable flat display devices. [0004] The flat display device may include a liquid crystal display (LCD) device, a plasma display panel (PDP), a field emission display device (FED), and an organic light emitting diode display device, among others. [0005] Among various flat display devices, LCD devices are widely used due to various advantages such as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/1343G02F1/1362G06F3/044
CPCG06F3/0412G02F1/1343G02F1/1362G02F1/133G02F1/13338G02F1/136204G06F3/044G06F3/0445G02F1/1345G06F2203/04103
Inventor 宋寅赫
Owner LG DISPLAY CO LTD