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Multi-touch touchscreen incorporating pen tracking

一种多点触摸、数字笔的技术，应用在数据处理的输入/输出过程、仪器、电数字数据处理等方向，能够解决环境光改变困难等问题

Inactive Publication Date: 2011-08-03
NORTEL NETWORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the ability to determine the relative intensity or force associated with a touch is often inversely proportional to the amount of ambient IR light and is difficult when the ambient light changes

Method used

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  • Multi-touch touchscreen incorporating pen tracking
  • Multi-touch touchscreen incorporating pen tracking
  • Multi-touch touchscreen incorporating pen tracking

Examples

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Embodiment Construction

[0027] The following embodiments present the necessary information to enable those skilled in the art to practice the invention and illustrate the best modes of carrying out the invention. Upon reading the following description with reference to the accompanying drawing figures, those skilled in the art will understand the concepts of the invention and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications are within the scope of this disclosure and the appended claims.

[0028] The invention relates to a multi-touch display system, which supports multi-touch human body input as well as input from a digital pen. The display system has a display panel configured to allow detection and tracking of human touch along the front surface. These human touches are used as input to the entire display system. The display panel also includes a location pattern, preferably covering a visible area of ​​...

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PUM

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Abstract

The present invention relates to a multi-touch display system that supports both multi-touch human input as well as input from a digital pen. The display system has a display panel that is configured to allow human touches along a front surface to be detected and tracked. The display panel also includes a location pattern that preferably covers the viewable areas of the display panel. The location pattern is configured to allow any location within the location pattern to be detected by analyzing a portion of the display pattern that is associated with the particular location. The digital pen is used to ''write'' on the display panel, wherein such a writing function involves detecting the location where writing occurs and controlling display content that is displayed on the display panel to reflect what is being written.

Description

technical field [0001] The present invention relates to multi-touch touch screens, and more particularly, to integrating pen tracking with multi-touch touch screen systems. Background technique [0002] Touch screens are specially configured display devices that are typically capable of detecting when a display panel is touched and the location of the touch within the display panel. This touch may be provided by a stylus, a human finger, or the like. Touch screens provide an additional or alternative input device to a keypad, keyboard, or mouse for a wide variety of electronic devices, such as point of sale equipment, handheld electronic devices, interactive display devices, workstations, personal computers, ATM etc. Historically, these touchscreen systems have employed different types of technologies to sense the location of touches, but have been limited to only being able to detect the location of a single touch at any given time. [0003] In recent years, a multi-touc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/033G06F3/042
CPCG06F2203/04109G06F3/04883G06F3/0317G06F3/0421G06F3/03545G06F2203/04808G06F3/0321G06F3/042G06F3/0354
Inventor B·多雷P·陶M·哈勒J·R·鲍威尔P·布兰德尔J·莱特纳T·J·塞弗里德M·T-L·马
Owner NORTEL NETWORKS LTD
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