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Control method and device for touch and display integrated system

An integrated system and control method technology, applied in the input/output process of data processing, instruments, calculations, etc., can solve the problem that the oblique line noise cannot be eliminated, and achieve the effect of eliminating oblique line noise

Active Publication Date: 2019-01-25
CHIPONE TECH BEIJINGCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a control method and device for a touch and display integrated system to solve the problem in the related art that the touch and display integrated system cannot eliminate the oblique line noise caused by a single reference value

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  • Control method and device for touch and display integrated system
  • Control method and device for touch and display integrated system
  • Control method and device for touch and display integrated system

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0022] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses a control method and apparatus for a touch and display integrated system. The method comprises the steps of taking a first capacitance value as a reference value during touch scanning of an odd frame; taking a second capacitance value as a reference value during touch scanning of an even frame; obtaining a capacitance value of each point block of a current frame; performingdifference operation on the capacitance value of each point block of the current frame and the first capacitance value or the second capacitance value to obtain a difference value of each point blockof the current frame; and according to the difference value, performing coordinate detection. Through the method and the apparatus, the effect of eliminating oblique line noises caused by adoption ofa single reference value in the touch and display integrated system is achieved.

Description

technical field [0001] The present invention relates to the display field, in particular to a control method and device for a touch-control and display integrated system. Background technique [0002] Integrated touch and display driver (Integrated touch and driver, referred to as ITD) system usually adopts H mode (H mode), in this mode, two touch scans are performed in one display frame, so as to realize 120Hz reporting rate. [0003] If the gate (gate) stops at a certain block (RX) during the first touch scan, it will not stop at the RX position next time, and each scan time slice width (Touch Period signal interval, referred to as TPSinterval ), the load (RC loading) of the screen is different when the Gate stops and stops at a certain RX, so the raw value (Rawdata) corresponding to this point will also be different, so there will be slash noise, such as figure 1 shown. [0004] Aiming at the problem in the related art that the slash noise cannot be eliminated due to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/0418G06F3/044
Inventor 冯鹏斐姜鹏
Owner CHIPONE TECH BEIJINGCO LTD
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