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Enhanced information display

A technology to enhance display and display modules, applied to static indicators, instruments, etc., can solve the problems of space consumption and intrusion

Active Publication Date: 2019-05-10
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All this additional data can be invasive and space consuming when combined with video content

Method used

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  • Enhanced information display
  • Enhanced information display
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Examples

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Embodiment Construction

[0018] Embodiments of the present invention use field sequential backlighting to implement temporally and spectrally multiplexed transmission of invisible information such as infrared and visible information through LCD modules or other types of backlit displays. Visible information such as color video or images (RGB images) is displayed through the LCD module. Invisible information, for example encoded as infrared information, is provided by the LCD module by being backlit only by an infrared backlight. Visible information and invisible information are alternately provided in frames of content in time continuity. Although invisible to a viewer of the LCD module, the invisible information can be detected by an infrared camera or other sensor and can be used to augment the visible information. For example, non-visible information may include a link to retrieve visible content to be displayed overlay or in conjunction with visible information, or a link to retrieve audio conten...

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Abstract

The present invention provides a system for enhancing displayed content with embedded non-visible information such as visual or audio information or web links to enhanced information. The system includes a display module, a first backlight module and a second backlight module, and a controller. The first backlight module and the second backlight module selectively provide visible light and invisible light, such as infrared light, to the display module. The controller provides to the display module a first frame of content and a second frame of content that alternate in time consecutively, wherein the first frame of content is backlit by the first backlight module and the second frame of content is illuminated only by the second backlight module Backlit. The second frame of content provides invisible information embedded with the first frame of content and can be detected by the infrared camera and used to display or provide enhanced information.

Description

Background technique [0001] Visible light communication has recently received attention due to the growing applications of solid-state lighting devices, making them candidates for ubiquitous communication carriers. On the other hand, pervasive visual display devices such as televisions and digital signage are only communicable in the traditional sense by conveying visual images. Increasingly, these displays are adding other data or information, such as Quick Response (QR) codes, overlaid on the main video content in addition to traditional overlay information such as scrolling information bars. All this additional data can be intrusive and space consuming when combined with video content. Accordingly, there is a need for methods of conveying information via electronic displays in addition to displayed video or other content. Contents of the invention [0002] A system for enhancing display content consistent with the present invention includes a display module, a first bac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/3413G09G3/2025G09G3/32G09G3/3426
Inventor 吴曙光肖峻
Owner 3M INNOVATIVE PROPERTIES CO