Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Touch sensing method for display with touch device

A touch display device and touch sensing technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem of limited vertical blank interval time and insufficient vertical blank interval time of the display panel, etc. question

Active Publication Date: 2019-12-10
ELAN MICROELECTRONICS CORPORATION
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vertical blank interval of the display panel is limited. For the current multi-tasking and time-sharing sensing of different types of touch objects (such as active stylus, passive stylus, fingers, etc.), the existing Not enough vertical blank space

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 sensing method for display with touch device
  • Touch sensing method for display with touch device
  • Touch sensing method for display with touch device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The technical means adopted by the present invention to achieve the intended purpose of the invention will be further described below in conjunction with the drawings and the embodiments of the present invention.

[0034] see figure 1 and figure 2 As shown, the touch display device 10 of the present invention mainly includes a display panel 11 and a control unit 12 , the control unit 12 is electrically connected to the display panel 11 for controlling the display panel 11 to display images or touch detection. The display panel 11 mainly includes a plurality of thin film transistors (not shown), a common electrode layer 111 and a plurality of pixel electrodes 112 . In this embodiment, the common electrode layer 111 includes a plurality of common electrodes C arranged in a matrix 1 ~C K ; Each common electrode C 1 ~C K Corresponding to h display pixels, where h is a positive integer greater than 1. For the convenience of explaining the technical content of this emb...

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 invention relates to a touch sensing method for a display with touch device having an image display period, which includes multiple execution time sections. Each execution time section has a display time division and a blank time division. A display procedure is executed in each display time division. A communicating procedure is executed in one of the blank time division. In the communicatingprocedure, an uplink signal is provided by the common electrodes for a first object to receive. Thus, the display with touch device has more time to detect more different kinds of touch objects.

Description

technical field [0001] The present invention relates to a touch sensing method in a touch display device, in particular to a touch display device capable of using a horizontal blank space to perform a touch procedure. Background technique [0002] At present, the in-cell touch display device (In-Cell Touch Display Device) uses the common electrode layer of the original display panel as the touch sensing electrode, so most of them adopt time-sharing display driving and touch scanning methods. The time-sharing display driving and touch scanning method divides each image display driving cycle of the original display panel (taking the display frequency as 60 Hz as an example, the image display driving cycle is 16.67 ms) into a display time period and a touch control time period; The touch time period corresponds to the vertical blanking interval (Vertical Blanking Interval, VBI) time of the display panel; therefore, it will not affect the image display of the display panel. Dur...

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 Applications(China)
IPC IPC(8): G06F3/0488
CPCG06F3/0488G06F3/0412G06F3/04184G06F3/0443G06F3/044G06F3/0416
Inventor 陈俊宇谢坤霖
Owner ELAN MICROELECTRONICS CORPORATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com