Display component and display apparatus

Patent metadata

Field	Value
Publication number	US-11237310-B2
Application number	US-201816087138-A
Country	US
Kind code	B2
Filing date	Mar 28, 2018
Priority date	Aug 25, 2017
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A display component includes a transflective layer, a reflective layer, and at least one sidewall. The reflective layer is arranged opposing to the transflective layer, and the at least one sidewall is arranged between the reflective layer and the transflective layer. The transflective layer, the reflective layer, and the at least one sidewall are together configured, upon an input of an incident light through the transflective layer, to output a light of a target color out through the transflective layer. One or more of the at least one sidewall comprise at least one light-conversion layer configured to emit a light of the target color upon excitement by a light of a different color shedding thereupon. The display component can be configured to output a red light, a green light, or a blue light.

First claim

The invention claimed is:

1. A display component, comprising:
a transflective layer;
a reflective layer, opposing to the transflective layer; and
at least one sidewall, arranged between the reflective layer and the transflective layer;
wherein:
the transflective layer, the reflective layer, and the at least one sidewall are together configured, upon an input of an incident light through the transflective layer, to output a light of a target color out through the transflective layer;
one or more of the at least one sidewall comprise at least one light-conversion layer configured to emit a light of the target color upon excitement by a light of a different color shedding thereupon; and

the transflective layer comprises:
an anti-reflective sub-layer; and
a metallic absorbing sub-layer, arranged over a side of the anti-reflective sub-layer proximal to the reflective layer.

2. The display component of claim 1 , wherein the at least one light-conversion layer comprises a first light-conversion material, configured to emit a light of the target color upon excitement of a light having a wavelength shorter than the light of the target color.

3. The display component of claim 2 , wherein the target color is a red color, and the first light-conversion material comprises a first quantum dot material, configured to emit a light of the red color upon excitement of upon excitement of at least one of a light of a green color or a light of a blue color.

4. The display component of claim 1 , wherein the at least one light-conversion layer comprises:
a second light-conversion material, configured to emit a light of the target color upon excitement of a light having a wavelength shorter than the light of the target color; and
a third light-conversion material, configured to emit a light of the target color upon excitement of a light having a wavelength longer than the light of the target color.

5. The display component of claim 4 , wherein the at least one light-conversion layer consists of one single light-conversion layer comprising both the second light-conversion material and the third light-conversion material.

6. A display component, comprising:
a transflective layer;
a reflective layer, opposing to the transflective layer; and
at least one sidewall, arranged between the reflective layer and the transflective layer;
wherein:
the transflective layer, the reflective layer, and the at least one sidewall are together configured, upon an input of an incident light through the transflective layer, to output a light of a target color out through the transflective layer; and

one or more of the at least one sidewall comprise at least one light-conversion layer configured to emit a light of the target color upon excitement by a light of a different color shedding thereupon;
wherein the at least one light-conversion layer comprises:
a second light-conversion material, configured to emit a light of the target color upon excitement of a light having a wavelength shorter than the light of the target color; and

a third light-conversion material, configured to emit a light of the target color upon excitement of a light having a wavelength longer than the light of the target color; and
wherein the at least one light-conversion layer further comprises:
a first light-conversion layer comprising the second light-conversion material; and
a second light-conversion layer comprising the third light-conversion material.

7. The display component of claim 4 , wherein:
the target color is a green color;
the second light-conversion material comprises a second quantum dot material, configured to emit a light of the green color upon excitement of a light of a blue color; and
the third light-conversion material is configured to emit a light of the green color upon excitement of a light of a red color.

8. The display component of claim 7 , wherein the third light-conversion material comprises a compound doped with at least one rare earth ion, wherein the compound comprises at least one of a fluoride, an oxide, a sulfide, an oxyfluoride, or a halide.

9. The display component of claim 8 , wherein the compound is NaYF 4 , and the at least one rare earth ion comprises Erbium and Ytterbium.

10. The display component of claim 1 , wherein the at least one light-conversion layer comprises a fourth light-conversion material, configured to emit a light of the target color upon excitement of a light having a wavelength longer than the light of the target color.

11. The display component of claim 10 , wherein the target color is a blue color, and the fourth light-conversion material is configured to emit a light of the blue color upon excitement of upon excitement of at least one of a light of a red color or a light of a green color.

12. The display component of claim 11 , wherein the fourth light-conversion material comprises a compound doped with at least one rare earth ion, wherein the compound comprises at least one of a fluoride, an oxide, a sulfide, an oxyfluoride, or a halide.

13. The display component of claim 12 , wherein the compound is NaYF 4 , and the at least one rare earth ion comprises Erbium and Ytterbium.

14. The display component of claim 1 , wherein each of at least one sidewall is configured to be reflective at an inner surface thereof.

15. A display apparatus, comprising at least one display component, each comprising:
a transflective layer;
a reflective layer, opposing to the transflective layer; and
at least one sidewall, arranged between the reflective layer and the transflective layer;
wherein:
the transflective layer, the reflective layer, and the at least one sidewall are together configured, upon an input of an incident light through the transflective layer, to output a light of a target color out through the transflective layer;
one or more of the at least one sidewall comprise at least one light-conversion layer configured to emit a light of the target color upon excitement by a light of a different color shedding thereupon; and
the display apparatus further comprises a light source, configured to provide the incident light entering through the transflective layer of the each of the at least one display component.

16. The display apparatus of claim 15 , wherein the target color is selected from a first color, a second color, or a third color, wherein the first color, the second color and the third color are respective one of three primary colors and has a decreasing wavelength.

17. The display apparatus of claim 16 , wherein the first color, the second color and the third color are respectively a red color, a green color, and a blue color.

18. The display apparatus of claim 15 , wherein the incident light is a white light.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co

Inventors

• Wang Meili
• Dong Xue
• Zhu Ming

Classifications

• G02F1/21 Primary

  by interference · CPC title

• G02F2203/09

  transflective · CPC title

• G02F1/213

  Fabry-Perot type · CPC title

• G02B2207/101

  Nanooptics · CPC title

• G02B5/207

  comprising semiconducting materials · CPC title