Method and Device for Adjusting Brightness of an Optical Touch Panel
First Claim
1. A method for adjusting brightness of an optical touch panel, said optical touch panel comprising a microprocessor, a display module including a back light source, and an optical position detection device including optical transmitting devices and optical receiving devices, said method comprising:
- detecting, via said optical receiving devices, a current ambient light level on said display module;
generating, via said optical receiving devices, a current ambient light level signal indicative of said current ambient light level and transmitting said current ambient light level signal to said microprocessor; and
adjusting, via said microprocessor, brightness of said back light source based on said current ambient light level signal.
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Accused Products
Abstract
A method and device are provided for adjusting brightness of an optical touch panel. The optical touch panel comprises a microprocessor, a display module including a back light source, and an optical position detection device including optical transmitting devices and optical receiving devices. The method comprises detecting, via the optical receiving devices, a current ambient light level on the display module. The method further comprises generating, via the optical receiving devices, a current ambient light level signal indicative of the current ambient light level and transmitting the current ambient light level signal to the microprocessor. Furthermore, the method comprises adjusting, via the microprocessor, brightness of the back light source based on the current ambient light level signal.
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Citations
22 Claims
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1. A method for adjusting brightness of an optical touch panel, said optical touch panel comprising a microprocessor, a display module including a back light source, and an optical position detection device including optical transmitting devices and optical receiving devices, said method comprising:
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detecting, via said optical receiving devices, a current ambient light level on said display module; generating, via said optical receiving devices, a current ambient light level signal indicative of said current ambient light level and transmitting said current ambient light level signal to said microprocessor; and adjusting, via said microprocessor, brightness of said back light source based on said current ambient light level signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for adjusting brightness of an optical touch panel, said device comprising:
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a display module comprising a display area and a back light source; control circuitry electrically coupled to said display module; and an optical position detection device coupled to said display module, said optical position detection device comprising optical transmitting devices and optical receiving devices; wherein said optical receiving devices detect a current ambient light level on said display module, generate a current ambient light level signal indicative of said current ambient light level, and transmit said current ambient light level signal to said control circuitry; and
wherein said control circuitry adjusts brightness of said back light source based on said current ambient light level signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification