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Touch sensible display device and driving method thereof

A display device and display area technology, applied in static indicators, data processing input/output process, optics, etc., can solve the problems of increasing time, increasing manufacturing cost, reducing the accuracy of judging the touch position, etc.

Inactive Publication Date: 2006-07-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although processing speed can be increased by using high-performance processors, such processors will increase manufacturing costs
The processing time can be reduced by reducing the resolution of the photosensor, but the reduction of the resolution of the photosensor will reduce the accuracy of judging the touch position
At the same time, the sensing frequency of the photoelectric sensor can be reduced to increase the time for processing a frame of data, but reducing the sensing frequency of the photoelectric sensor will reduce the sensitivity of sensing cursive text

Method used

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  • Touch sensible display device and driving method thereof
  • Touch sensible display device and driving method thereof
  • Touch sensible display device and driving method thereof

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Embodiment Construction

[0048] The invention will now be described more fully with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

[0049] In the drawings, the thickness of layers and regions are exaggerated for clarity. Like numbers refer to like elements throughout. It will be understood that when an element (eg, layer, region or substrate) is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

[0050] now refer to figure 1 and figure 2 A liquid crystal display device (LCD) as an example of an exemplary embodiment of the display device according to the present invention will be specifically described.

[0051] figure 1 is a block diagram of an exemplary embodiment of an LCD according to the present invention, figure 2 is an equivalent circ...

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Abstract

A display device includes a first photosensor receiving ambient light and generating a first sensing signal based on a first amount of received light, a touch photosensor exposed to the ambient light and generating a second sensing signal based on a second amount of received light, and a sensing signal processor receiving the first sensing signal and the second sensing signal and selectively outputting the second sensing signal based on the first sensing signal.

Description

technical field [0001] The present invention relates to a display device and a driving method thereof. More particularly, the present invention relates to a touch-sensitive display device and a driving method thereof. Background technique [0002] A liquid crystal display device (LCD) includes a first panel having pixel electrodes, and a second panel having common electrodes. A liquid crystal layer having dielectric anisotropy is interposed between the first and second panels. The pixel electrodes are arranged in a matrix on the first panel, and are connected to switching elements, such as thin film transistors (TFTs), so that they receive image data voltages row by row. The common electrode covers the entire surface of the second panel, and is applied with a common voltage. A pixel electrode, a corresponding common electrode portion, and a corresponding liquid crystal layer portion constitute a liquid crystal capacitor, which is also a basic element of a pixel in additio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
CPCG06F3/0412G09G2360/147G09G2360/144G09G3/3648G06F3/042G09G3/36G02F1/133
Inventor 朴钟雄金炯杰鱼基汉李柱亨
Owner SAMSUNG ELECTRONICS CO LTD