Driving circuit for driving a liquid crystal display panel
AssigneeHimax Technologies Limited
InventorYaw-Guang Chang
Life of this patent
Estimating the term…
Abstract
A sensing device for sensing a touch panel. The sensing device includes a touch sensor and a touch controller. The touch sensor senses touch events on the touch panel to generate raw data representing sensed values of the pixels on the touch panel, and further filters the raw data to generate filtered data. The data size of the filtered data is smaller than the data size of the raw data. The touch controller receives the filtered data from the touch sensor and processes the filtered data so as to determine positions of the touch events on the touch panel.
Claims10
A sensing device for sensing a touch panel, comprising:
- a touch sensor, for sensing a plurality of touch events on the touch panel to generate raw data representing a plurality of sensed values of a plurality of pixels on the touch panel, and further filtering the raw data to generate filtered data, wherein after filtering, the raw data of a portion of pixels on the touch panel is not remained in the filtered data so that the data size of the filtered data is smaller than the data size of the raw data;
- and
- a touch controller, for receiving the filtered data from the touch sensor and processing the filtered data so as to determine positions of the touch events on the touch panel.
A sensing module for sensing a touch panel, comprising:
- a plurality of touch sensors, each for sensing a plurality of touch events on the touch panel and comprising:
- a sensing element, sensing the touch events to generate a plurality of sensed values of a plurality of pixels on the touch panel;
- an analog to digital converter (ADC), converting the sensed values from an analog format to a digital format to generate raw data representing the sensed values;
- and
- a signal processing unit, processing the raw data and filtering out a portion of the raw data with the corresponding sensed values which are less than a predetermined threshold to obtain filtered data, wherein after filtering, the raw data of a portion of pixels on the touch panel is not remained in the filtered data so that the data size of the filtered data is smaller than the data size of the raw data.
A sensing module for sensing a touch panel, comprising:
- a plurality of touch sensors, each for sensing a plurality of touch events on the touch panel to generate raw data representing a plurality of sensed values of a plurality of pixels on the touch panel, and further filtering the raw data to generate filtered data,
- wherein after filtering, the raw data of a portion of pixels on the touch panel is not remained in the filtered data so that the data size of the filtered data is smaller than the data size of the raw data, and
- wherein one of the plurality of touch sensors further receives the filtered data from the other touch sensor(s), and processes the filtered data to determine positions of the touch events on the touch panel.
Dependencies are inferred from the claim text.