Color optoelectronic solid state device

Patent metadata

Field	Value
Publication number	US-12593735-B2
Application number	US-202218568577-A
Country	US
Kind code	B2
Filing date	Jun 10, 2022
Priority date	Jun 10, 2021
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

Structures and methods are disclosed for fabricating a color optoelectronic solid state array device. In one embodiment, different color devices and optical structures are combined to form a color optoelectronic solid state array. The optical structure comprise of light distribution layer, light extraction layer, waveguide, reflective layers, linear color combinator. In another embodiment, a method to combine light colors in a color microdevice array is disclosed.

First claim

The invention claimed is:

1 . A method to combine color from different sources in an optoelectronics device, the method comprising:
having a first array of optoelectronic devices coupled to a waveguide structure; passing a light from the first array to one side of the waveguide structure or a light from the one side being passed to the first array; and redirecting an input light or an output light on the one side of the waveguide structure by a dichroic mirror in substantially a same direction as a light direction in the waveguide structure, wherein a second array of optoelectronic devices is coupled to the waveguide structure and the waveguide structure passes the light from the first array or the light from the one side to a same direction as the light from the first array, wherein there is a third array of optoelectronic devices coupled to the waveguide structure and a light from the third array is passed to a same direction as the first and second arrays, wherein the first, second and third arrays are made of same devices or different devices, and wherein the first, second and third arrays are different colors to provide for a full color display wherein the waveguide structure merges an output from the first, second or third array and reflects the output from the first, second or third array as one output.

2 . The method of claim 1 , where an optical device/layer between the first array and the waveguide structure assists in coupling the light from the first array or the light from the one side between the first array and the waveguide structure.

3 . The method of claim 1 , wherein there is a light coupling structure between the second and third arrays and the waveguide structure.

4 . The method of claim 1 , wherein the waveguide structure is a stack of different waveguides or a single waveguide.

5 . The method of claim 1 , wherein the first array includes one or more of micro light-emitting diode (microLED), organic light emitting diode (OLED), quantum dot (QD), sensors, or a stack of different devices including microLED/OLED and QD or microLED/OLED and color filter.

6 . The method of claim 1 , wherein the first, second and third arrays are made from same optoelectronic devices to increase one characteristic of the first, second, and third arrays wherein the one characteristic includes one or more of a brightness or a resolution.

7 . The method of claim 1 , wherein the reflection happens at one side of the waveguide structure.

8 . The method of claim 7 , wherein the dichroic mirror is coupled to the one side of the waveguide structure with a reflected image wherein the dichroic mirror reflects the reflected image to an output that has substantially a same direction of an original image and is different from an output image of the waveguide structure.

Assignees

• Vuereal Inc

Inventors

• Chaji Gholamreza

Classifications

• H10K59/875

  Arrangements for extracting light from the devices · CPC title

• G02B6/4214

  the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device (G02B6/4246 takes precedence) · CPC title

• H10K2102/331

  Nanoparticles used in non-emissive layers, e.g. in packaging layer · CPC title

• H10K59/878

  comprising reflective means · CPC title

• H10K59/70

  OLEDs integrated with inorganic light-emitting elements, e.g. with inorganic electroluminescent elements · CPC title