LIQUID CRYSTAL DISPLAY
First Claim
1. A liquid crystal display comprising:
- a liquid crystal display panel including a pixel array that displays an image and touch sensors that sense a touch position depending on an amount of receiving light;
a polarizing plate on one substrate of the liquid crystal display panel transmitting display light, the polarizing plate including a conductive layer;
a driving voltage supply circuit to generate a driving voltage required to perform light sensing operations of the touch sensors during a touch period based on changes in an amount of surface charge of the conductive layer depending on whether or not the polarizing plate is touched; and
a signal transmitting unit to electrically connect the conductive layer to the driving voltage supply circuit.
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Accused Products
Abstract
A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including a pixel array and touch sensors, a transparent conductive layer on one substrate of the liquid crystal display panel transmitting display light, a polarizing plate on the transparent conductive layer, a driving voltage supply circuit, and a signal transmitting unit electrically connecting the transparent conductive layer to the driving voltage supply circuit. A portion of the transparent conductive layer is connected to a ground level voltage source. The driving voltage supply circuit generates a driving voltage required to perform light sensing operations of the touch sensors during a touch period based on changes in an amount of surface charge of the transparent conductive layer depending on whether or not the polarizing plate is touched.
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Citations
4 Claims
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1. A liquid crystal display comprising:
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a liquid crystal display panel including a pixel array that displays an image and touch sensors that sense a touch position depending on an amount of receiving light; a polarizing plate on one substrate of the liquid crystal display panel transmitting display light, the polarizing plate including a conductive layer; a driving voltage supply circuit to generate a driving voltage required to perform light sensing operations of the touch sensors during a touch period based on changes in an amount of surface charge of the conductive layer depending on whether or not the polarizing plate is touched; and a signal transmitting unit to electrically connect the conductive layer to the driving voltage supply circuit. - View Dependent Claims (2, 3, 4)
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Specification