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Panel driving device and panel driving method

A panel and voltage-driven technology, applied in the field of panel devices, can solve the problems of increasing the size and power of panel driving devices

Active Publication Date: 2018-04-17
SILICON WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When driving current or driving power is increased to improve touch sensitivity, the power consumed by the panel driving device may increase, and the size of the panel driving device may also increase

Method used

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  • Panel driving device and panel driving method
  • Panel driving device and panel driving method
  • Panel driving device and panel driving method

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Embodiment Construction

[0050] Hereinafter, embodiments are described in detail with reference to exemplary drawings. When components are given reference numbers in drawings, the same components are given the same reference numbers even if the components are shown in different drawings. Also, in describing the present invention, well-known functions or constructions will not be described in detail if they may unnecessarily obscure the understanding of the present invention.

[0051] In addition, the terms 'first', 'second', 'A', 'B', '(a)', '(b)' may be used in the following description of the embodiments. The terms are provided only for the purpose of distinguishing a component from other components, and the nature, order or sequence of the components are not limited by the terms. When a component is described as being "connected," "combined" or "coupled" to another component, it should be understood that the component may be connected or coupled to the other component directly, or through another ...

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Abstract

The present invention provides a panel driving device: supplying a first signal to a first sensor electrode by using a first amplifier, so as to detect a change in the capacitance of the first sensorelectrode; supplying a second signal, having the same waveform as that of the first signal, to a second sensor electrode adjacent to the first sensor electrode by using a second amplifier; and detecting the proximity or a touch of an external object toward the sensor electrodes according to the change in the capacitance of the first sensor electrode.

Description

technical field [0001] The invention relates to a device for driving a panel. In detail, the present invention relates to a device for driving a panel including a plurality of sensors that can sense the approach or touch of an object. Background technique [0002] The panel may include a plurality of sensor electrodes to sense the approach or touch of an object. [0003] The sensor electrodes in the panel are driven by a panel driving device. [0004] The panel driving device measures the capacitance generated between the sensor electrode and the object by driving the sensor electrode, thereby sensing approach or touch of the object. [0005] Meanwhile, not only the capacitance generated between the sensor electrodes and the object, but also parasitic capacitances are generated between the sensor electrodes, which causes problems. [0006] When the parasitic capacitance increases, the capacitance between the sensor electrode and the object relatively decreases, and thus t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/04184G06F3/0443G01R27/2605G06F2203/04107G06F3/0418G06F3/044
Inventor 安容星
Owner SILICON WORKS CO LTD
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