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Display device with integrated touch screen

A technology for display devices and integrated circuits, which is applied in static indicators, input/output processes of data processing, optics, etc., and can solve problems such as the increase in the size of touch ICs

Inactive Publication Date: 2013-09-18
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the touch IC for switching the common voltage needs to be manufactured separately
[0009] In addition, a separate circuit block needs to be added to apply a high voltage to the drive electrodes, and when the touch IC includes this separate circuit block inside, the size of the touch IC increases

Method used

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  • Display device with integrated touch screen
  • Display device with integrated touch screen
  • Display device with integrated touch screen

Examples

Experimental program
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Embodiment Construction

[0020] Hereinafter, exemplary embodiments of the present disclosure will be described in detail, 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 components. If it is determined that known arts will mislead the present invention, detailed descriptions of known arts will be omitted.

[0021] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0022] In the following description, for convenience of description, a display device with an integrated touch screen according to an embodiment of the present disclosure will be exemplified as an LCD, but the present invention is not limited thereto. The present invention can be applied to various display devices such as FED, PDP, ELD, EPD, and the like.

[0023] figure 1 is a diagram schematically illustrating a configuration of a display devic...

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PUM

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Abstract

Disclosed is a display device with an integrated touch screen, including a touch screen comprising a plurality of driving electrodes and sensing electrodes built in a panel; a display driver integrated circuit (IC) (i) converting a first driving pulse into a second driving pulse with a gate high voltage Vgh, wherein the second driving pulse is applied to the driving electrodes when the panel operates in a touch driving mode, (ii) receiving a plurality of sensing signals from the sensing electrodes when the panel operates in a touch driving mode, and (iii) applying a common voltage to the driving electrodes and the sensing electrodes when the panel operates in a display driving mode; and a touch IC generating the first driving pulse, wherein the first driving pulse is applied to the display driver IC, and receiving the sensing signals from the display driver IC to detect a touch.

Description

technical field [0001] The present disclosure relates to display devices, and more particularly, to display devices having an integrated touch screen built into a panel. Background technique [0002] A touch screen is an input device that is included in displays such as liquid crystal displays (LCDs), field emission displays (FEDs), plasma display panels (PDPs), electroluminescent displays (ELDs), and electrophoretic displays (EPDs). device, and enables the user to input information by directly touching the screen with a finger, pen, etc. while viewing the screen of the display device. [0003] In particular, demand for display devices with integrated in-cell type touch screens including display devices for slimming portable terminals such as smartphones and tablet personal computers (PCs) is increasing recently. A variety of built-in components to form the touch screen. [0004] Display devices with integrated touch screens are classified into optical type, resistive type...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G09G3/20
CPCG06F3/0412G09G3/3685G09G2354/00G06F3/0446G02F1/13338G06F3/0416G06F3/044
Inventor 金埙培黄相守
Owner LG DISPLAY CO LTD