Display device with coordinate input function
First Claim
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1. A display device with coordinate input function having a liquid crystal display panel for both displaying images and inputting coordinates, comprising:
- a sensor means for sensing coordinate input detection signals from a control means;
a liquid crystal display panel of two-layer type including an optical phase compensation cell, as a first layer of the liquid crystal display panel and a liquid crystal display cell as a second layer of the liquid crystal display panel; and
a plurality of transparent electrodes arranged on said compensation cell in an X-Y matrix form, for inputting the coordinate input detection signals to said sensor means, wherein said compensation cell is a phase compensation film which exhibits optical anisotropy.
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Abstract
A display device with coordinate input function with transparent electrodes for inputting coordinates disposed in an X-Y matrix form on an optical phase compensation cell, such as an optically anisotropic phase compensation film, provided for a liquid crystal display panel of two-layer type. Coordinate input can be performed even in the case of a liquid crystal display panel divided into two, upper and lower, separately driven parts to increase the resolution of the display screen, because of the transparent electrodes disposed on the optical phase compensation cell.
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Citations
6 Claims
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1. A display device with coordinate input function having a liquid crystal display panel for both displaying images and inputting coordinates, comprising:
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a sensor means for sensing coordinate input detection signals from a control means; a liquid crystal display panel of two-layer type including an optical phase compensation cell, as a first layer of the liquid crystal display panel and a liquid crystal display cell as a second layer of the liquid crystal display panel; and a plurality of transparent electrodes arranged on said compensation cell in an X-Y matrix form, for inputting the coordinate input detection signals to said sensor means, wherein said compensation cell is a phase compensation film which exhibits optical anisotropy. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification