Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2006-09-21
2010-06-15
Liang, Regina (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C178S018010
Reexamination Certificate
active
07737957
ABSTRACT:
A display device includes a display panel, a plurality of pixels formed on the display panel, a plurality of sensing units formed on the display panel and generating sensor output signals in response to a touch exerted on the display panel, a sensing signal processor receiving and processing an analog sensor data signal originated from the sensor output signals to generate a digital sensor data signal, a first touch-determination unit detecting whether a touch exists based on the digital sensor data signal for a plurality of frames, and operating in a power saving mode, and a second touch-determination unit detecting whether and where a touch exists based on the digital sensor data signal for the plurality of frames, and operating in a normal mode. The display device includes hardwired logic units for detecting the touch, it detects the touch using the hardwired logic units in the power saving mode and converts the operation mode to the normal mode when the touch is detected, thus reducing power consumption.
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Lee Joo-Hyung
Park Jong-Woung
Uh Kee-Han
Cantor & Colburn LLP
Liang Regina
Samsung Electronics Co,. Ltd.
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