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Display device having multi-touch recognizing function and driving method thereof

A display device and multi-contact technology, applied in the input/output process of instruments, data processing, electrical digital data processing, etc., can solve the problems of reducing aperture ratio and reducing brightness

Inactive Publication Date: 2012-05-02
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although there is a method of embedding an optical sensor of a multi-contact recognition device in each pixel of a display device, this method has another problem in that the optical sensor reduces the aperture ratio of the display device thereby reducing its brightness.

Method used

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  • Display device having multi-touch recognizing function and driving method thereof
  • Display device having multi-touch recognizing function and driving method thereof
  • Display device having multi-touch recognizing function and driving method thereof

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Embodiment Construction

[0042] Preferred embodiments of the invention will now be described in detail with reference to examples illustrated in the accompanying drawings.

[0043] figure 1 Shown is a block diagram of an exemplary display device with a multi-touch recognition function according to an embodiment of the present invention. refer to figure 1 , according to the embodiment of the present invention, the display device with multi-touch recognition function includes a touch and display integrated module 20, wherein cameras 21A to 21D are arranged at the four corners of the pixel array 10A on which an image is displayed; a control board 30 controls the touch and the display integration module 20 to calculate the coordinates of the touch point; and the system 40 is used to provide the control board 30 with RGB data and timing signals to be displayed.

[0044] figure 2 show figure 1 A schematic illustration of the display device. refer to figure 2 , the touch and display integrated modul...

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Abstract

A display device having a multi-touch recognition function includes an integration module having a plurality of cameras integrated at an edge of a display panel; a look-up-table of a plurality of compensation angles in an range of about 0 to about 90 degrees corresponding to each of the plurality of cameras; and processor that detects a touch area using at least first and second images captured by the plurality of cameras, respectively, and compensates the detected touch area with one of the plurality of compensation angles.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2006-128529 filed on December 15, 2006 and Korean Patent Application No. 10-2007-024180 filed on March 12, 2007 Eugenic Rights, the entire contents of which are hereby incorporated by reference. technical field [0002] Embodiments of the present invention relate to a display device, in particular to a display device and a driving method thereof. Embodiments of the invention are suitable for a wide range of applications. Specifically, the embodiments of the present invention are suitable for compensating lens distortion in multi-touch recognition for a display device. Background technique [0003] In general, a touch screen is a user interface attached to a display device, and has a characteristic that its electrical characteristics change at a touch point where a hand or a pen touches the screen. Touch screens have been used in various applications such as small portable terminals, office equip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
CPCG06F3/0354G06F3/0412G06F3/042G06F2203/04104G06F3/04186
Inventor 沈莲心张亨旭裵相赫
Owner LG DISPLAY CO LTD