Display device

A display device and technology of display size, applied in optics, magnifiers, instruments, etc., can solve problems such as vision loss

Inactive Publication Date: 2016-11-23
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the proportion of the image displayed on the display screen or TV is always fixed, different users have different vision due to their eyes. In order to see the picture of the TV or display clearly, the user is often too close to the display screen so that many people's eyesight more subdued

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 device
  • Display device
  • Display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The display device provided by the technical solution will be further described in detail below with reference to the drawings and embodiments.

[0015] see figure 1 , figure 1 It is the display device 100 provided in the first embodiment of the present invention. The display device includes a frame 10 , an image source 20 , a lens group 30 and a driving device 40 . The image source 20 , the lens group 30 and the driving device 40 are all accommodated in the outer frame 10 .

[0016] The outer frame 10 is roughly square. The outer frame 10 includes a first side wall 11 , a second side wall 12 , a third side wall 13 and a fourth side wall 14 connected in sequence. The first side wall 11 is parallel to and opposite to the third side wall 13 , and the second side wall 12 is parallel to and opposite to the fourth side wall 14 .

[0017] The image source 20 is used to supply images. The image source 20 is disposed on the first sidewall 11 . The image source 20 is a di...

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

A display device of the invention comprises an image source which is used for providing an image, and a lens group which includes a first Fresnel lens and a second Fresnel lens arranged in parallel. The distance between the first Fresnel lens and the second Fresnel lens is adjustable. The focus lengths of the first Fresnel lens and the second Fresnel lens are f1' and f2' respectively. The distance from an image provided by the image source to the center of the first Fresnel lens is a first object distance u1, and the first object distance u1 and the focus length of the first Fresnel lens meets f1'<u1<2*f1'. A first image formed after the image provided by the image source passes through the first Fresnel lens is between the first Fresnel lens and the second Fresnel lens. The distance from the first image to the center of the second Fresnel lens is a second object distance u2, and the second object distance u2 and the focus length of the second Fresnel lens meets u2<f2'.

Description

technical field [0001] The invention relates to a display device. Background technique [0002] Since the proportion of the image displayed on the display screen or TV is always fixed, different users have different vision due to their eyes. In order to see the picture of the TV or display clearly, the user is often too close to the display screen so that many people's eyesight subsides even more. Therefore, designing a display device capable of zooming in on an image or a picture and preventing the user from being too close to the display device is a major research topic in the field of display devices. Contents of the invention [0003] In view of this, it is necessary to provide a display device that can solve the above problems. [0004] A display device comprising: an image source for supplying an image; and a lens group, the lens group comprising a first Fresnel lens and a second Fresnel lens arranged in parallel, the first Fresnel lens and the second Fresnel lens ...

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): G02B27/02G02B25/00
Inventor 张仁淙
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap