Pixel unit, display panel, and display device

• US 10,613,257 B2
• Filed: 03/16/2018
• Issued: 04/07/2020
• Est. Priority Date: 09/20/2017
• Status: Active Grant

• Current Assignee: Beijing BOE Display Technology Co Ltd (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Qu, Lianjie, Gui, Bingqiang, Qi, Yonglian, Yang, Chengshao
• Primary Examiner(s): Howard, Ryan D
• Application Number:
  US15/923,232
• Publication Number:
  US 20190086587A1
• Time in Patent Office: 753 Days
• CPC Class Codes: G02B 1/11 Anti-reflection coatings
• CPC Class Codes: G02B 5/0242 by means of dispersed particles
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: G02B 5/288 comprising at least one thin film resonant cavity, e.g. in bandpass filters
• CPC Class Codes: G02F 1/133555 Transflectors

Abstract

The present disclosure provides a pixel unit, a display panel, and a display device, which relates to the field of display technology. The pixel unit includes: a base substrate; a reflective layer, disposed on a side of the base substrate; a resonant layer, disposed on a side of the reflective layer away from the base substrate; a transflective layer, disposed on a side of the resonant layer away from the base substrate; and a scattering layer, disposed on a side of the transflective layer away from the base substrate.

Claims

1. A pixel unit, comprising:

a base substrate;

a reflective layer, disposed on a side of the base substrate;

a resonant layer, disposed on a side of the reflective layer away from the base substrate;

a transflective layer, disposed on a side of the resonant layer away from the base substrate; and

a scattering layer, disposed on a side of the transflective layer away from the base substrate,

wherein the scattering layer comprises a planarization layer and microparticles dispersed inside the planarization layer, and

wherein the microparticle comprises an absorber that absorbs a light with a specific wavelength.

2. The pixel unit according to claim 1, wherein the absorber comprises metal microparticles, and a size of the metal microparticle is in an order of nanometer.

3. The pixel unit according to claim 2, wherein the metal microparticle comprises one or more of gold, silver and copper.

4. The pixel unit according to claim 1, wherein the microparticle comprises a scatterer, and a refractive index of the scatterer is different from that of the planarization layer.

5. The pixel unit according to claim 4, wherein the scatterer comprises organic particles.

6. A display panel, comprising the pixel unit according to claim 1.

7. A display device, comprising the display panel according to claim 6.

8. A pixel unit, comprising:

a base substrate;

a reflective layer, disposed on a side of the base substrate;

a resonant layer, disposed on a side of the reflective layer away from the base substrate;

a transflective layer, disposed on a side of the resonant layer away from the base substrate; and

a scattering layer, disposed on a side of the transflective layer away from the base substrate,

wherein the scattering layer comprises a planarization layer and microparticles dispersed inside the planarization layer, and

wherein the scatterer comprises an air microcavity.

9. A display panel, comprising the pixel unit according to claim 8.

10. A display device, comprising the display panel according to claim 9.

11. A pixel unit, comprising:

a base substrate;

a reflective layer, disposed on a side of the base substrate;

a resonant layer, disposed on a side of the reflective layer away from the base substrate;

a transflective layer, disposed on a side of the resonant layer away from the base substrate;

a scattering layer, disposed on a side of the transflective layer away from the base substrate; and

a transmission enhanced layer, disposed on a side of the scattering layer away from the base substrate.

12. The pixel unit according to claim 11, wherein the transmission enhanced layer has a micro-pillar structure, and upper and lower surfaces of the transmission enhanced layer have a symmetrical structure.

13. The pixel unit according to claim 11, wherein the transmission enhanced layer has a multilayer film structure.

14. The pixel unit according to claim 11, wherein the transmission enhanced layer comprises a micro-pillar structure and a multilayer film structure symmetrically disposed on two sides of the micro-pillar structure.

15. A display panel, comprising the pixel unit according to claim 11.

16. A display device, comprising the display panel according to claim 15.