Organic light-emitting display panel and organic light-emitting display device

Patent metadata

Field	Value
Publication number	US-10468632-B2
Application number	US-201815945417-A
Country	US
Kind code	B2
Filing date	Apr 4, 2018
Priority date	Aug 29, 2017
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

An organic light-emitting display panel, includes an array substrate including a flexible substrate and a thin film transistor layer placed on the flexible substrate; an organic light-emitting component placed on the array substrate, including a plurality of light-emitting units; a packaging layer placed on aside of the organic light-emitting component away from the array substrate, the packaging layer including a first inorganic packaging layer and a first organic packaging layer, the first inorganic packaging layer and the first organic packaging layer being placed in order on a side of the packaging layer along a direction away from the array substrate; wherein the first organic packaging layer includes a plurality of scattering particles, refractive indexes of the first inorganic packaging layer, the first organic packaging layer and the scattering particle are defined as n1, n2 and n3 respectively, and n2 is different from n3.

First claim

What is claimed is:

1. An organic light-emitting display panel comprising:
an array substrate comprising a flexible substrate and a thin film transistor layer placed on the flexible substrate;
an organic light-emitting component layer placed on the thin film transistor layer, wherein the organic light-emitting component layer comprises a plurality of light-emitting units; and
a packaging layer positioned on the organic light-emitting component, wherein the packaging layer comprises a first inorganic packaging layer and a first organic packaging layer disposed sequentially;
wherein the first organic packaging layer comprises a plurality of scattering particles, wherein a refractive index of the first inorganic packaging layer is n 1 , a refractive index of the first organic packaging layer is n 2 , and a refractive index of the scattering particle is n 3 , wherein n 2 is different from n 3 ,
wherein the plurality of scattering particles is disposed over the plurality of light-emitting units, such that projections of the plurality of scattering particles overlap projections the plurality of light-emitting units on the array substrate, and
wherein the plurality of light-emitting units comprises a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit, wherein the plurality of scattering particles comprises a plurality of first scattering particles, a plurality of second scattering particles, and a plurality of third scattering particles; wherein the plurality of first scattering particles corresponds to the red light-emitting unit, wherein a refractive index of the plurality of first scattering particles is n 4 ; wherein the plurality of second scattering particles corresponds to the green light-emitting unit, wherein a refractive index of the plurality of second scattering particles is n 5 ; wherein the plurality of third scattering particles corresponds to the blue light-emitting unit, wherein a refractive index of the plurality of third scattering particles is n 6 , wherein n 4 >n 5 >n 6 >n 2 , or n 4 <n 5 <n 6 <n 2 .

2. The organic light-emitting display panel according to claim 1 , wherein the packaging layer further comprises a second inorganic packaging layer positioned on the first organic packaging layer.

3. The organic light-emitting display panel according to claim 2 , wherein the plurality of scattering particles is formed between an interface of the first inorganic packaging layer and the first organic packaging layer, and an interface of the first organic packaging layer and the second inorganic packaging layer.

4. An organic light-emitting display panel comprising:
an array substrate comprising a flexible substrate and a thin film transistor layer placed on the flexible substrate;
an organic light-emitting component layer placed on the thin film transistor layer, wherein the organic light-emitting component layer comprises a plurality of light-emitting units; and
a packaging layer positioned on the organic light-emitting component, wherein the packaging layer comprises a first inorganic packaging layer and a first organic packaging layer disposed sequentially;
wherein the first organic packaging layer comprises a plurality of scattering particles, wherein a refractive index of the first inorganic packaging layer is n 1 , a refractive index of the first organic packaging layer is n 2 , and a refractive index of the scattering particle is n 3 , wherein n 2 is different from n 3 ,
wherein the plurality of scattering particles is disposed over the plurality of light-emitting units, such that projections of the plurality of scattering particles overlap projections the plurality of light-emitting units on the array substrate,
wherein the plurality of light-emitting units comprises a red light-emitting unit and a green light-emitting unit, wherein the plurality of scattering particles is positioned over the red light-emitting unit and the green light-emitting unit, wherein projections of the scattering particles overlaps projections of the red light-emitting unit and the green light-emitting unit on the array substrate; and
wherein the plurality of scattering particles comprises a plurality of fourth scattering particles and a plurality of fifth scattering particles, wherein the plurality of fourth scattering particles corresponds to the red light-emitting unit, wherein a refractive index of the plurality of fourth scattering particles is n 4 ; wherein the plurality of fifth scattering particles corresponds to the green light-emitting unit, wherein a refractive index of the plurality of fifth scattering particles is n 5 ; and wherein n 4 ≥n 5 >n 2 or n 4 <n 5 <n 2 .

5. The organic light-emitting display panel according to claim 4 , wherein the packaging layer further comprises a second inorganic packaging layer positioned on the first organic packaging layer.

6. The organic light-emitting display panel according to claim 5 , wherein the plurality of scattering particles is formed between an interface of the first inorganic packaging layer and the first organic packaging layer, and an interface of the first organic packaging layer and the second inorganic packaging layer.

7. An organic light-emitting display panel, comprising:
an array substrate comprising a flexible substrate and a thin film transistor layer placed on the flexible substrate;
an organic light-emitting component layer placed on the array substrate, wherein the organic light-emitting component comprises a plurality of light-emitting units; and
a packaging layer disposed on the organic light-emitting component layer, wherein the packaging layer comprises a first inorganic packaging layer, a first scattering layer and a first organic packaging layer sequentially on the array substrate;
wherein a refractive index of the first inorganic packaging layer is n 1 , a refractive index of the first organic packaging layer is n 2 , wherein a refractive index of the first scattering layer decreases in gradient along a direction from the first inorganic packaging layer to the first organic packaging layer in a range of n 7 to n 8 , and wherein n 7 >n 1 , and n 8 <n 2 .

8. The organic light-emitting display panel according to claim 7 , wherein the packaging layer further comprises a second scattering layer disposed on the first organic packaging layer, wherein a refractive index of the second scattering layer decreases in gradient along a direction from the first inorganic packaging layer to the first organic packaging layer, ranging from n 9 to n 10 , and wherein n 9 >n 2 .

9. The organic light-emitting display panel according to claim 8 , wherein the packaging layer further comprises a second inorganic packaging layer disposed on the second scattering layer, wherein a refractive index of the second inorganic packaging layer is n 11 , and wherein n 10 <n 11 .

10. The organic light-emitting display panel according to claim 8 , wherein the first scattering layer comprises silicon oxynitride, the second scattering layer comprises silicon oxynitride, wherein an oxygen content in silicon oxynitride used in the first scattering layer and the second scattering layer increases in gradient along a direction from the first inorganic packaging layer to the first organic packaging layer.

11. The organic light-emitting display panel according to claim 7 , wherein the first organic packaging layer comprises a plurality of scattering particles, wherein a refractive index of the plurality of scattering particles is different from the refractive index of the first organic packaging layer.

12. The organic light-emitting display panel according to claim 7 , wherein the first scattering layer comprises

Assignees

• Shanghai Tianma Micro Elect Co

Inventors

• Zhai Yingteng
• Chen Haijing
• Li Zhenying
• Ma Jun

Classifications

• H01L51/5256

  Electricity · mapped topic

• H01L27/3258

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L27/3211

  Electricity · mapped topic