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Touch controllers, methods thereof, and devices having the touch controllers

A technology of touch controller and operation method, which is applied in the direction of instrument, data processing input/output process, electrical digital data processing, etc., can solve problems affecting touch sensing, etc., and achieve noise removal, mismatch compensation, and display noise removal Effect

Active Publication Date: 2013-03-27
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the thickness of the touch display panel becomes thinner, the display noise generated in the common electrode of the display may affect the touch sensing
Display noise may be generated by the material, structure of the display common electrode, or the displayed image

Method used

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  • Touch controllers, methods thereof, and devices having the touch controllers
  • Touch controllers, methods thereof, and devices having the touch controllers
  • Touch controllers, methods thereof, and devices having the touch controllers

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Embodiment Construction

[0056] With regard to the embodiments of the inventive concept disclosed in this specification, the specific structural and functional descriptions are only exemplified for the purpose of illustrating the embodiments of the inventive concept, and the embodiments according to the inventive concept may be in various forms Implementation, and should not be construed as being limited to the embodiments described in this specification.

[0057] The embodiments according to the inventive concept can add various changes and can have various forms, and thus, for a specific embodiment, it needs to be illustrated in the drawings and needs to be described in detail in this specification. However, this is not intended to limit the embodiments according to the inventive concept to a specific disclosed form, but should be understood to include all changes, equivalents, and substitutes included in the idea and technical scope of the present invention.

[0058] Although the terms "first", "second"...

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PUM

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Abstract

The invention discloses an operating method of a touch controller, including receiving a plurality of currents through a plurality of channels, respectively, sensing a first current among the plurality of currents and extracting the sensed first current as a first control current and converting a charge corresponding to a difference between the first control current and a second current among the plurality of currents into an output voltage.

Description

Technical field [0001] The present invention relates to a touch controller, and more particularly, to a touch controller for removing display noise generated in a common electrode of a display, an operation method of the touch controller, and a device having the touch controller. Background technique [0002] The demand for touchable electronic devices is growing. The touchable electronic device includes a touch display panel for sensing touch. The touch display panel includes sensor electrodes for measuring changes in capacitance. [0003] Capacitive sensing is a technology that senses touch by using changes in capacitance. When a finger or conductive stylus approaches the sensor electrode, the capacitance changes. The change in capacitance can be measured by the sensor electrode, and the change in capacitance can be converted into X and Y positions. [0004] With the development of the technology of electronic devices such as smart phones or tablet computers, the size and thick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCH03K17/9622G06F3/0418G06F3/044G06F3/04184G06F3/0443
Inventor 卞山镐金起德崔伦竞
Owner SAMSUNG ELECTRONICS CO LTD