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Optical assembly and display device

A technology of optical components and gratings, applied in optical components, optics, instruments, etc., can solve the problem of reducing the efficiency of optical waveguides, and achieve the effects of steep spectral characteristics, easy adjustment of light color, and improved color purity.

Pending Publication Date: 2022-05-31
INTERFACE TECH CHENGDU CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first aspect of the present application provides an optical component to solve the problem that the organic optical filter is gradually cracked during use and the efficiency of the optical waveguide is reduced

Method used

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  • Optical assembly and display device
  • Optical assembly and display device
  • Optical assembly and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] see figure 1 , this embodiment provides an optical assembly 100 . The optical assembly 100 includes a first transparent substrate 110 , a second transparent substrate 120 and a third transparent substrate 130 . The first light-transmitting substrate 110 is used to transmit the light 119 of the first wavelength band; the second light-transmitting substrate 120 is used to transmit the light 129 of the second wavelength band; the third light-transmitting substrate 130 is used to transmit the third wavelength band of light 139. The first waveband, the second waveband and the third waveband do not overlap each other. The material of the first transparent substrate 110 , the second transparent substrate 120 and the third transparent substrate 130 is, for example, glass.

[0060]The first light-transmitting substrate 110 includes a first surface 111 and a second surface 112 opposite to each other, and the second surface 112 includes a first light emitting area 113 and a sec...

Embodiment 2

[0071] see Figure 4 In this embodiment, an optical assembly 200 is provided. The optical assembly 200 includes a first transparent substrate 210 , a second transparent substrate 220 and a third transparent substrate 230 . The first light-transmitting substrate 210 includes a first surface 211 and a second surface 212 opposite to each other, and the second surface 212 includes a first light emitting area 213 and a second light emitting area 214 arranged at intervals. The second light-transmitting substrate 220 includes a third surface 221 and a fourth surface 222 opposite to each other, and the fourth surface 222 includes a third light emitting area 223 and a fourth light emitting area 224 arranged at intervals. The third light-transmitting substrate 230 includes a fifth surface 231 and a sixth surface 232 opposite to each other, and the sixth surface 232 includes a fifth light emitting area 233 and a sixth light emitting area 234 arranged at intervals.

[0072] The differenc...

Embodiment 3

[0081] see Figure 7 In this embodiment, an optical assembly 300 is provided, which includes a first transparent substrate 310 , a second transparent substrate 320 and a third transparent substrate 330 . The first light-transmitting substrate 310 includes a first surface 311 and a second surface 312 opposite to each other, and the second surface 312 includes a first light emitting area 313 and a second light emitting area 314 arranged at intervals. A first coupling-in grating 315 and a first coupling-out grating 316 are disposed on the first surface 311 at intervals. The first light emitting area 313 is provided with a first filter film 317 . The second light-transmitting substrate 320 includes a third surface 321 and a fourth surface 322 opposite to each other, and the fourth surface 322 includes a third light emitting area 323 and a fourth light emitting area 324 arranged at intervals. A second coupling-in grating 325 and a second coupling-out grating 326 are disposed on t...

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Abstract

The embodiment of the invention relates to the field of augmented reality and virtual reality, aims to solve the problem that the optical waveguide effect is reduced due to the fact that an organic optical filter is gradually split along with the use process, and provides an optical assembly and a display device. The optical assembly comprises a first light-transmitting substrate, a first coupling-in grating, a first coupling-out grating and a first light filtering film. The first light-transmitting substrate is used for conducting light of a first wave band. The first light-transmitting substrate comprises a first surface and a second surface which are opposite to each other, and the second surface comprises a first light-emitting area and a second light-emitting area. The first light filtering film is arranged in the first light emitting area and used for filtering light of the first wave band. The first filter film comprises a plurality of layers of inorganic films. The embodiment of the invention has the beneficial effects of improving the light emitting effect of the optical assembly and prolonging the service life of the optical assembly.

Description

technical field [0001] The present application relates to the field of augmented reality and virtual reality, and in particular, to optical components and display devices. Background technique [0002] In Augmented Reality (AR), light is coupled into the glass substrate of the optical waveguide, and the light is transmitted to the front of the eye through the principle of total reflection, and then the image information is released. The red, green and blue lights need to be respectively coupled into three layers of optical waveguides with organic color filters, so that each layer of optical waveguides is only coupled for a certain color, which improves the color uniformity at the exit pupil position and reduces the rainbow effect. [0003] The organic color filter currently used will be decomposed with time due to the high light intensity of the light source, which will increase the light loss; when the organic color filter is gradually decomposed with time, a light source w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/42G02B5/28
CPCG02B27/0172G02B27/4205G02B5/285
Inventor 施宏欣
Owner INTERFACE TECH CHENGDU CO LTD
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