Touch Sensing Device
A technology of touch sensing and voltage sensing, which is applied in the direction of instrumentation, electrical digital data processing, and input/output process of data processing, etc., can solve the problems of inability to improve efficiency, save power, and consume extra time Eliminate discharge time, reduce charging time, and improve efficiency
Inactive Publication Date: 2015-09-09
RAYDIUM SEMICON
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Problems solved by technology
That is to say, the traditional method takes extra time to discharge and requires additional voltage to charge, which cannot improve efficiency and save power
Method used
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Embodiment Construction
[0035] A specific embodiment according to the present invention is a touch sensing device. In this embodiment, the touch sensing device may be a mutual capacitive touch sensing device, but not limited thereto.
[0036] Please refer to figure 1 , figure 1 It is a schematic diagram illustrating that the touch sensing device 1A of the present invention performs touch point sensing on the conductive film sensor. Such as figure 1 As shown, the liquid crystal display includes a touch sensing device 1A and a conductive film sensor 2 . The conductive film sensor 2 includes a plurality of sensing lines 80 and a plurality of driving lines 90 vertically distributed. It should be noted that the driving line 90 and the sensing line 80 are interchangeable, that is to say figure 1 In fact, 90 can also be used as a sensing line, figure 1 In fact, 80 can also be used as a driving line, which can be controlled by the touch sensing device 1A, but not limited thereto. In this embodiment, d...
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A touch sensing device comprises a logic control module, at least an operation control module and at least a storage control module. The logic control module is used for generating a plurality of control signals of different control timing, wherein these control signals include operation control signals and parallel control signals. The operation control module includes a positive input terminal, a negative input terminal and an output terminal, calculates the voltages received from the positive input terminal and negative input terminal according to the operation control signals, and outputs analog data after the operation through the output terminal. The storage control module is coupled to the logic control module and includes a plurality of storage capacitors and one end of each storage capacitor is coupled to each other. The storage control module averagely distributes the residual charges in these capacitors according to the parallel control signals, so that each of the storage capacitors is separately stored with the same storage voltage.
Description
technical field [0001] The present invention relates to a touch-sensitive liquid crystal display; specifically, the present invention relates to a touch sensing device capable of reducing charging time and increasing scan rate. Background technique [0002] With the rapid development of technology, thin film transistor liquid crystal displays (TFT LCDs) have gradually replaced traditional displays, and have been widely used in various electronic products such as TVs, flat panel displays, mobile phones, tablet computers, and projectors. For a TFT-LCD with a touch function, the touch sensor is one of the important modules, and its performance directly affects the overall performance of the LCD. [0003] Generally speaking, a traditional liquid crystal display with mutual capacitive touch function includes a display panel, an ITO sensor and a touch control chip. Wherein, the conductive film sensor includes a plurality of scanning lines and a plurality of driving lines, and the...
Claims
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IPC IPC(8): G06F3/041
Inventor 董人宏詹前煜王建国左克扬
Owner RAYDIUM SEMICON