Driver device

A driver and scanning device technology, which is applied in the fields of instruments, computing, electrical digital data processing, etc., can solve the problem that the touch sensor cannot perform touch sensing, and achieve the effect of good sensing quality
CN110489002AActive Publication Date: 2019-11-22E INK HLDG INC
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
E INK HLDG INC
Publication Date
2019-11-22

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Abstract

The invention provides a driver device for driving an electronic paper display panel to perform touch sensing operation. The driver device comprises a scanning device and a sensing device, wherein thescanning device is used for scanning a plurality of sensing blocks on the electronic paper display panel so as to carry out touch sensing operation; each sensing block comprises one or more sensing elements; the sensing blocks are arranged in an array; the sensing device is electrically connected to the scanning device; the sensing device is used for controlling the scanning device to scan the sensing block; the sensing device charges and discharges each sensing block according to the first voltage and the second voltage to generate a relaxation signal; and the pulse wave variation value of the relaxation signal is changed by touching an object. The touch object is a conductor. The touch position of the touch object on the electronic paper display panel is determined according to the relaxation frequency of the relaxation signal of each sensing block.
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Description

technical field

[0001] The present invention relates to a driver device, in particular to a driver device for driving an electronic paper display panel to perform a touch sensing operation. Background technique

[0002] In recent years, electronic paper display devices have been widely used in electronic readers (such as e-books, electronic newspapers) or other electronic components (such as electronic tags) due to their advantages of thinness, durability, energy-saving and environmental protection, and low power consumption. ). On the other hand, if the electronic paper display device has a touch sensing function, it will provide an intuitive input method for the user and improve the user experience.

[0003] Generally speaking, the touch sensor must be exposed to the air, and its internal layered structure should not include, for example, an Indium Tin Oxide (ITO) conductive film or other similar conductive layers to avoid covering other The layered structure causes shie...

Claims

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