Electronic device

Patent metadata

Field	Value
Publication number	US-2024219732-A1
Application number	US-202218558060-A
Country	US
Kind code	A1
Filing date	Apr 28, 2022
Priority date	May 7, 2021
Publication date	Jul 4, 2024
Grant date	—

Abstract

An electronic device with high luminance is provided. The electronic device includes a first display apparatus, a second display apparatus, and an optical element. The first display apparatus includes a first light-emitting element and the second display apparatus includes a second light-emitting element. A color of first light emitted from the first light-emitting element is different from a color of second light emitted from the second light-emitting element. An optical element is provided between the first display apparatus and the second display apparatus. The optical element includes a first light guide plate and a second light guide plate.

First claim

1 . An electronic device comprising a first display apparatus, a second display apparatus, and an optical element,
wherein the first display apparatus comprises a first light-emitting element, wherein the second display apparatus comprises a second light-emitting element, wherein a color of first light emitted from the first light-emitting element is different from a color of second light emitted from the second light-emitting element, wherein the optical element is provided between the first display apparatus and the second display apparatus, and wherein the optical element comprises a first light guide plate and a second light guide plate.

2 . An electronic device comprising a first display apparatus, a second display apparatus, and an optical element,
wherein the first display apparatus comprises a first light-emitting element, wherein the second display apparatus comprises a second light-emitting element, wherein a color of first light emitted from the first light-emitting element is different from a color of second light emitted from the second light-emitting element, wherein the optical element is provided between the first display apparatus and the second display apparatus, wherein the optical element comprises a first light guide plate, a second light guide plate, a first input portion diffraction element, a second input portion diffraction element, a first output portion diffraction element, and a second output portion diffraction element, wherein the first input portion diffraction element is configured to make the first light enter the first light guide plate, wherein the second input portion diffraction element is configured to make the second light enter the second light guide plate, wherein the first output portion diffraction element is configured to deliver the first light entering the first light guide plate to an outside of the first light guide plate, and wherein the second output portion diffraction element is configured to deliver the second light entering the second light guide plate to an outside of the second light guide plate.

3 . The electronic device according to claim 1 ,
wherein the first display apparatus comprises a region overlapping with the second display apparatus with the optical element therebetween.

4 . The electronic device according to claim 1 ,
wherein the first display apparatus does not overlap with the second display apparatus with the optical element therebetween.

5 . The electronic device according to claim 3 ,
wherein the second display apparatus further comprises a third light-emitting element, and wherein the color of the first light, the color of the second light, and a color of third light emitted from the third light-emitting element are different from each other.

6 . The electronic device according to claim 5 ,
wherein the optical element further comprises a third input portion diffraction element and a third output portion diffraction element, wherein the third input portion diffraction element is configured to make the third light enter the first light guide plate, wherein the third output portion diffraction element is configured to deliver the third light entering the first light guide plate to the outside of the first light guide plate, and wherein an image is formed by synthesizing the first light and the third light delivered by the first light guide plate and the second light delivered by the second light guide plate.

7 . The electronic device according to claim 5 ,
wherein the first light-emitting element is an element emitting red light, wherein the second light-emitting element is an element emitting green light, and wherein the third light-emitting element is an element emitting blue light.

8 . The electronic device according to claim 7 ,
wherein the first light-emitting element, the second light-emitting element, and the third light-emitting element are each a micro light-emitting diode comprising an inorganic compound as a light-emitting material.

9 . The electronic device according to claim 7 ,
wherein the first light-emitting element is a micro light-emitting diode comprising an organic compound as a light-emitting material, and wherein the second light-emitting element and the third light-emitting element are each a micro light-emitting diode comprising an inorganic compound as a light-emitting material.

10 . The electronic device according to claim 5 ,
wherein the first light-emitting element is an element emitting blue light, wherein the second light-emitting element is an element emitting green light, and wherein the third light-emitting element is an element emitting red light.

11 . The electronic device according to claim 10 ,
wherein the first light-emitting element, the second light-emitting element, and the third light-emitting element are each a micro light-emitting diode comprising an organic compound as a light-emitting material.

12 . The electronic device according to claim 3 4 ,
wherein the first display apparatus further comprises a fourth light-emitting element, wherein the second display apparatus further comprises a third light-emitting element, and wherein the color of the first light, the color of the second light, a color of third light emitted from the third light-emitting element, and a color of fourth light emitted from the fourth light-emitting element are different from each other.

13 . The electronic device according to claim 12 ,
wherein an image is formed by synthesizing the first light, the second light, the third light, and the fourth light delivered by the optical element.

14 . The electronic device according to claim 12 ,
wherein the first light-emitting element is an element emitting red light, wherein the second light-emitting element is an element emitting green light, wherein the third light-emitting element is an element emitting blue light, and wherein the fourth light-emitting element is an element emitting yellow light.

15 . The electronic device according to claim 3 4 ,
wherein the second display apparatus further comprises a third light-emitting element and a fourth light-emitting element, and wherein the color of the first light, the color of the second light, a color of third light emitted from the third light-emitting element, and a color of fourth light emitted from the fourth light-emitting element are different from each other.

16 . The electronic device according to claim 15 ,
wherein an image is formed by synthesizing the first light, the second light, the third light, and the fourth light delivered by the optical element.

17 . The electronic device according to claim 15 ,
wherein the first light-emitting element is an element emitting red light, wherein the second light-emitting element is an element emitting green light, wherein the third light-emitting element is an element emitting blue light, and wherein the fourth light-emitting element is an element emitting white light.

18 . The electronic device according to claim 2 ,
wherein the first display apparatus comprises a region overlapping with the second display apparatus with the optical element therebetween.

19 . The electronic device according to claim 2 ,
wherein the first display apparatus does not overlap with the second display apparatus with the optical element therebetween.

20 . The electronic device according to claim 18 ,
wherein the second display apparatus further comprises a third light-emitting element, and where

Assignees

• Semiconductor Energy Lab

Inventors

• Miyairi Hidekazu
• Kato Sho

Classifications

• H10W90/00

  Package configurations · CPC title

• H10H20/855

  Optical field-shaping means, e.g. lenses · CPC title

• H10H29/142

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title

• G02B2027/0116

  comprising devices for correcting chromatic aberration · CPC title

• H10K59/95

  wherein all light-emitting elements are organic, e.g. assembled OLED displays · CPC title