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

Display equipment and displaying control method thereof

A display control method and display device technology, which can be applied to picture duplicators, instruments, projection devices, etc., can solve the problems of low precision and slow focusing speed, and achieve the effect of precise autofocus and clear user experience

Inactive Publication Date: 2015-10-14
LENOVO (BEIJING) CO LTD
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the user needs to manually focus the projection device according to the projected image he perceives, so the focusing speed is very slow and the accuracy is not high

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
  • Display equipment and displaying control method thereof
  • Display equipment and displaying control method thereof
  • Display equipment and displaying control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0026] First, refer to figure 1 A display device according to an embodiment of the present invention is described. The display device 1 is preferably, for example, a digital light processor (DLP) using a digital micromirror (DMD) as a light valve imaging device. A DLP display device is composed of an analog-to-digital decoder, a memory chip, an image processor, and several digital signal processors (DSPs). All text and images are processed by analog-to-digital conversion to generate a digital signal. To the heart of DLP display devices - Digital Microreflective Devices (DMDs). After the light beam passes through the high-speed rotating three-color lens, it is projected on the DMD, and then projected on the large screen through the optical lens to complete the image projection. A piece of DMD, for example, is formed by many tiny square...

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 provides display equipment which realizes automatic focusing and a displaying control method thereof. The display equipment comprises the components of a projection unit which is used for supplying an imaging optical signal to be displayed; a lens unit through which the imaging optical signal forms the to-be-displayed image on an imaging surface; a focusing and light-emitting unit which is configured on the imaging surface and is used for transmitting a focusing optical signal to the lens unit; and a focusing sensing unit which is used for sensing the focusing optical signal that enters through the lens unit and controlling movement of the lens unit according to the imaging state of the focusing optical signal, wherein an optical path between the projection unit and the lens unit is equal with that between the focusing sensing unit and the lens unit.

Description

technical field [0001] The present invention relates to the field of display devices, and more specifically, the present invention relates to a display device for realizing automatic focusing and a display control method thereof. Background technique [0002] With the development of technologies such as DLP (Digital Light Processing), projection equipment used to project images or videos onto a screen has become more and more compact and its cost has continued to decrease, making projection equipment widely used in homes, Offices, schools and entertainment venues, etc. [0003] Generally, when the usage state of the projection device changes, for example, when the distance between the projection device and the screen is changed, the projection device needs to be adjusted to obtain an optimal projection focusing effect. Usually, the user needs to manually focus the projection device according to the projected image perceived by the user, so the focusing speed is very slow an...

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
IPC IPC(8): H04N9/31G03B21/53
Inventor 李翔
Owner LENOVO (BEIJING) CO LTD
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