Image display apparatus with image entry function
First Claim
1. An image display apparatus with image entry function comprising:
- a pixel circuit including a first pixel containing a first photo sensor for receiving light irradiated from the observation side of the screen, and a second pixel including a second photo sensor shielded from external light;
a gate line connecting to the pixel circuit and extending in a first direction;
a first data line connecting only to the first pixel, and a second data line connecting only to the second pixel, and extending in a second direction intersecting the first direction;
a sensor read line connecting alternately to the first pixel and the second pixel and extending in the first direction;
a gate driver for applying a pixel select signal to the gate line;
a data driver for supplying display data by way of the data line to the pixel selected by the pixel select signal;
a sensor driver connected to the sensor read line; and
a sensor signal processor circuit connecting to the first data line and the second data line,wherein the sensor signal processor circuit senses the secondary coordinates from touching operation on the screen based on the first photo sensor and the second photo sensor signal input by way of the first data line and the second data line.
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Accused Products
Abstract
An image display apparatus with image entry function capable of high-speed and high-accuracy direct screen entry without increasing the peripheral circuit scale or the number of circuit elements for each pixel that lower the pixel aperture ratio. A first pixel circuit and a second pixel circuit are alternately arrayed horizontally. First and second data lines are connected to a data driver and a sensor signal processor circuit. Selector switches are connected to the input terminal of the data driver. Gray scale voltages are sent from the data driver to the first and second data lines, and first and second photo sensor signals are sent to the sensor signal processor circuit.
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Citations
25 Claims
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1. An image display apparatus with image entry function comprising:
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a pixel circuit including a first pixel containing a first photo sensor for receiving light irradiated from the observation side of the screen, and a second pixel including a second photo sensor shielded from external light; a gate line connecting to the pixel circuit and extending in a first direction; a first data line connecting only to the first pixel, and a second data line connecting only to the second pixel, and extending in a second direction intersecting the first direction; a sensor read line connecting alternately to the first pixel and the second pixel and extending in the first direction; a gate driver for applying a pixel select signal to the gate line; a data driver for supplying display data by way of the data line to the pixel selected by the pixel select signal; a sensor driver connected to the sensor read line; and a sensor signal processor circuit connecting to the first data line and the second data line, wherein the sensor signal processor circuit senses the secondary coordinates from touching operation on the screen based on the first photo sensor and the second photo sensor signal input by way of the first data line and the second data line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An image display apparatus with image entry function comprising:
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a first pixel circuit including a first pixel containing a photo sensor for receiving red light irradiated from the observation side of the screen and, a second pixel circuit including a second pixel without a photo sensor, and a third pixel circuit including a third pixel containing a photo sensor for receiving blue light that is external light; a gate line connecting to the first pixel circuit and the second pixel circuit and the third pixel circuit and extending in a first direction; a first data line connecting only to the first pixel circuit, and a second data line connecting only to the second pixel circuit, and a third data line connecting only to the third pixel circuit, and extending in a second direction intersecting the first direction; a sensor read line connecting to the first pixel and the third pixel and extending in the first direction; a gate driver for applying a pixel select signal to the gate line; a data driver for supplying red display data and green display data and blue display data by way of the first data line and the second data line and the third data line of the pixel selected by the pixel select signal; a sensor driver connected to the sensor read line; and a sensor signal processor circuit connected to the first data line and the third data line, wherein the sensor signal processor circuit senses the secondary coordinates where the screen was touched based on the signals from the photo sensor of the first pixel circuit and the photo sensor of the third pixel circuit input by way of the first data line and the third data line. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification