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Touch sensing device

A technology for touch sensing and voltage sensing, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output processes, etc. The effect of reducing discharge time, reducing charging time and improving efficiency

Inactive Publication Date: 2013-02-06
RAYDIUM SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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] An embodiment according to the present invention is a touch sensing device. In this embodiment, the touch sensing device may be a mutual inductance 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 thin film sensor. like figure 1 As shown, the liquid crystal display includes a touch sensing device 1A and a conductive thin film sensor 2 . The conductive thin film sensor 2 includes a plurality of sensing lines 80 and a plurality of driving lines 90 which are vertically distributed. It should be noted that the driving line 90 and the sensing line 80 are interchangeable, that is to say figure 1 90 in can actually 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....

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PUM

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Abstract

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-type liquid crystal display; in particular, the present invention relates to a touch-sensing device capable of reducing charging time and increasing scanning rate. Background technique [0002] With the rapid development of science and technology, thin film transistor liquid crystal display (TFT LCD) has gradually replaced traditional displays, and has been widely used in various electronic products such as televisions, flat-panel displays, mobile phones, tablet computers, and projectors. For a TFT liquid crystal display with touch function, the touch sensor is one of the important modules, and the performance of the touch sensor directly affects the overall performance of the liquid crystal display. [0003] Generally speaking, a conventional liquid crystal display with mutual inductive capacitive touch function includes a display panel, an ITO sensor and a touch control chip. The conductive thin film sensor i...

Claims

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Application Information

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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
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