Unlock instant, AI-driven research and patent intelligence for your innovation.

A wedge-shaped film for eliminating ghosting in head-up displays

A head-up display and wedge-shaped film technology, which is applied in the direction of instruments, optical components, optics, etc., can solve the problems of difficulty in using post-mounted film, large wedge-shaped film thickness, and impossibility of popularization, etc., to achieve the effect of eliminating ghosting and wide application

Active Publication Date: 2018-06-19
FORYOU MULTIMEDIA ELECTRONICS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing wedge-shaped film has high requirements on the projection distance. No matter how it is adjusted, there will always be one end of the wedge-shaped film that is too thick than the thinner section, resulting in an excessive thickness of the wedge-shaped film. When applying this wedge-shaped structure to the front windshield , after the glass is formed, it is difficult to implement, and it can only be prefabricated in the front-mounted models, so it cannot be popularized, and it is even more difficult to use in the rear-mounted film market

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
  • A wedge-shaped film for eliminating ghosting in head-up displays
  • A wedge-shaped film for eliminating ghosting in head-up displays

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, this embodiment provides a wedge-shaped film for eliminating ghosting in a head-up display, which includes a wedge-shaped film main body 100 and several wedge-shaped blocks 101 arranged on the top surface of the wedge-shaped film main body 100 .

[0024] The cross section of the wedge block 101 is a right-angled triangle; the right-angled triangle includes a first right-angled side i, a second right-angled side d and a hypotenuse, and an angle a between the first right-angled side and the hypotenuse. The length of the first right-angled side i is 0.2 mm to 1 mm. The value of the included angle a is 0.01°-0.1°. When realizing the effect of eliminating ghosting in the embodiment of the present invention, the value of the second right-angled side d is approximately equal to 0.

[0025] The embodiment of the present invention can be applied to ordinary front-gear sun film and explosion-proof film, and the structure of the embodiment of the prese...

Embodiment 2

[0030] Such as figure 2 As shown, this embodiment provides another wedge-shaped film for eliminating ghosting of the head-up display, which includes a wedge-shaped film main body 100 and several wedge-shaped blocks 101 arranged on the top surface of the wedge-shaped film main body 100 .

[0031] The main difference between this embodiment and Embodiment 1 is that the cross-sectional shape of the wedge block 101 is different. Specifically, the cross-section of the wedge block 101 is an obtuse triangle with an obtuse angle facing upward; the obtuse triangle includes a first side j, a second side and a second side. Three sides, the angle b between the first side j and the second side, the length of the first side j is 0.2 mm to 1 mm.

[0032] According to actual requirements, the included angle b may be 0.01°˜0.1°. The angle of the obtuse angle can be 140°-160°. In the technical solution provided by the embodiment of the present invention, to achieve the effect of eliminating g...

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 the technical field of head up displays and in particular to a wedge-shaped film capable of eliminating double images of a head up display. The wedge-shaped film can integratedly form a wedge-shaped film main body (100) and a plurality of wedge-shaped blocks (101) which are arranged on a top surface of the wedge-shaped film main body (100) by using nanotechnology. The wedge-shaped film can realize film production and can be adhered to the surface of an automobile windshield so as to eliminate HUD graphic double images. According to the embodiments of the invention, since the wedge-shaped film adopts nanostructure, the thickness of the wedge-shaped film does not change along with the changes of wedge-shaped angles, such that the realization of a greater wedge-shaped angle is much easier. Therefore, according to the embodiments of the invention, requirements of HUD for the glass of the automobile windshield can be lowered by simply adhering the film to the surface of glass of common windshields so as to eliminate HUD double images. The wedge-shaped film obviates the need for specific manufacturing special-purpose glasses, lowers the requirements of HUD for the glass of automobile windshields, and also lowers HUD cost.

Description

technical field [0001] The invention relates to the technical field of head-up displays, in particular to a wedge-shaped film for eliminating ghost images of head-up displays. Background technique [0002] Head Up Display (HUD) is a flight auxiliary instrument commonly used on aircraft at present. It can project information such as flight parameters, aiming attack, and self-inspection in the form of images and characters to the front of the cockpit through optical components. On the photoelectric display device on the front combination glass. With the rapid development of technology, head-up displays have been used in cars, and independent head-up displays are also sold on the market. [0003] When the traditional car head-up display is in use, the light projected by the main unit splits into at least two beams after passing through the windshield, and the light enters the human eye after being reflected by the inner and outer surfaces of the windshield respectively. It's ...

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 Patents(China)
IPC IPC(8): G02B1/10G02B27/01
CPCG02B1/10G02B27/0101
Inventor 马红虎骆名灯朱妙贤王波苏晓明吴军
Owner FORYOU MULTIMEDIA ELECTRONICS