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Touch display device and driving method thereof, touch driving circuit and touch controller

A touch-driven, touch-display technology, applied in circuits, electrical solid-state devices, instruments, etc., can solve problems such as signal-to-noise ratio deterioration and touch sensitivity deterioration.

Pending Publication Date: 2022-05-27
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, conventional touch display devices have a significant disadvantage of degraded touch sensitivity due to electromagnetic interference (EMI) unexpectedly generated from these touch display devices
Recently, although various methods for reducing or preventing EMI have been considered, these methods have the side effect of degrading the signal-to-noise ratio (SNR), which is a major performance factor of touch sensitivity

Method used

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  • Touch display device and driving method thereof, touch driving circuit and touch controller
  • Touch display device and driving method thereof, touch driving circuit and touch controller
  • Touch display device and driving method thereof, touch driving circuit and touch controller

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Embodiment Construction

[0059] In the following description of examples or embodiments of the invention, reference is made to the accompanying drawings, in which specific examples or embodiments are shown by way of example and in which like numerals and Symbols may be used to designate the same or similar components even when they are shown in different drawings from each other. Furthermore, in the following description of examples or embodiments of the present invention, the detailed description of known functions and components contained herein will be omitted when it is determined that the detailed description may obscure the subject matter in some embodiments of the present invention. Terms such as "comprising", "having", "comprising", "consisting of", "consisting of" and "formed of" as used herein are generally intended to allow for the addition of other components, unless these terms are combined with the term "only" use together. As used herein, the singular is intended to include the plural ...

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PUM

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Abstract

The present disclosure relates to a touch display device, a driving method thereof, a touch driving circuit, and a touch controller for sensing a touch using a touch driving signal whose frequency changes in synchronization with a touch driving timing. According to the embodiments of the present disclosure, a high signal-to-noise ratio and improved resistance to EMI can be achieved, and improved touch sensitivity can be obtained.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2020-0150531 filed in the Korean Intellectual Property Office on Nov. 11, 2020, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present disclosure relates to a touch display device, a driving method of the touch display device, a touch driving circuit, and a touch controller. Background technique [0004] With the advent of the information society, there is an increasing demand for display devices for displaying images. To meet these demands, various types of display devices, such as liquid crystal display (LCD) devices, electroluminescence display (ELD) devices including quantum dot light-emitting display devices, and organic light-emitting display (eg, OLED) devices, etc., have been developed and is widely used. [0005] Among these display devices, by getting rid of general input de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/0447G06F3/0445G06F3/04164G06F3/04162G06F3/0446G06F3/0443G06F3/04166H10K59/40G06F3/04182G06F3/0412G06F2203/04104G06F3/046G06F3/03547
Inventor 金弦祐全載薰鄭昭廷
Owner LG DISPLAY CO LTD