Unlock instant, AI-driven research and patent intelligence for your innovation.

Touch noise filtering method and touch device

A touch device and noise technology, applied in the field of touch recognition, can solve problems such as affecting the sensing resolution of a capacitive touch panel 1', easily causing errors, etc., so as to improve the sensing resolution and reduce interference. Effect

Active Publication Date: 2020-03-31
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the finger touches the pressing position A of the touch panel 1', there will be touch noise caused by the interference of the circuit, and the sensing circuit 3' will detect that the normal signal S i and noise N i The connection signal L i (L i = S i +N i ), so it is easy to cause errors, which in turn affects the sensing resolution of the capacitive touch panel 1'

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Touch noise filtering method and touch device
  • Touch noise filtering method and touch device
  • Touch noise filtering method and touch device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0039] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the specific...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a method of touching the touch noise and touch device. The method includes the following steps: the standard capacitance value of each touch electrode when the touch panel is entered at least one row of normal signals, and obtain the touch panelThe connection electrical value of each touch electrode after being disturbed; minus the connection capacitor of each touch electrode derivative of the connected electrical capacity of another touch electrode in the first direction in the first direction to get each touch each touchThe difference in the capacitance of the electrode; the standard capacitance value of the last touch electrode of each line in the first direction as the capacitance value of the restore signal; from the last touch electrode, in the second direction in the opposite direction in the first direction,Calculate the capacitance value of the restore signal of each touch electrode one by one, add the capacitance difference value of each touch electrode in the first direction of the capacitance of another touch electrode in the first direction as the capacitor valueThe capacitance value of the reducing signal of the touch electrode and perform coordinate operations.

Description

technical field [0001] The invention relates to the field of touch recognition, in particular to a touch noise filtering method and a touch device in an integrated device of a touch panel and a liquid crystal panel. Background technique [0002] The technical principle of the touch panel is that when a finger or other medium touches the screen, it detects voltage, current, sound waves or infrared rays according to different sensing methods, and then measures the coordinate position of the touch point. For example, the resistive touch panel uses the potential difference between the upper and lower electrodes to calculate the position of the pressure point to detect the location of the touch point. The capacitive touch panel uses the capacitance change generated by the electrostatic combination between the arranged transparent electrodes and the human body, and detects its coordinates from the generated current or voltage. [0003] Compared with the conventional method of dis...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0416G06F3/044G06F3/04182G06F3/0446
Inventor 黄丰舜
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD