Recycling backlight including structured reflector
US-2019265547-A1 · Aug 29, 2019 · US
Oled display panel and oled display device
US2021210731A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021210731-A1 |
| Application number | US-202016768279-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 19, 2020 |
| Priority date | Jan 23, 2019 |
| Publication date | Jul 8, 2021 |
| Grant date | — |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
The present disclosure provides an OLED display panel and an OLED display device, and belongs to the field of display technology. The OLED display panel of the present disclosure includes a base substrate and a display cover disposed opposite to each other; a polarizing layer disposed between the base substrate and the display cover; a light extraction layer disposed between the base substrate and the display cover; the OLED display panel is provided with a light exit surface, and the light extraction layer is closer to the light exit surface than the polarizing layer.
First claim
Opening claim text (preview).
1 . An OLED display panel, comprising: a base substrate and a display cover disposed opposite to each other; a polarizing layer disposed between the base substrate and the display cover; and a light extraction layer disposed between the base substrate and the display cover; wherein, the OLED display panel is provided with a light exit surface, and the light extraction layer is closer to the light exit surface than the polarizing layer. 2 . The OLED display panel of claim 1 , wherein, a refractive index of the light extraction layer is the same as a refractive index of the polarizing layer. 3 . The OLED display panel of claim 2 , wherein, the refractive index of the light extraction layer is 1.8-2.2. 4 . The OLED display panel of claim 1 , wherein, a material of the light extraction layer comprises scattering particles. 5 . The OLED display panel of claim 4 , wherein, the scattering particles comprise silicon oxide particles. 6 . The OLED display panel of claim 1 , further comprising: at least one OLED display device having a light emitting surface; wherein, the polarizing layer is located on a side of the light emitting surface of the OLED display device. 7 . The OLED display panel of claim 6 , further comprising: at least one thin film transistor, which is correspondingly coupled to the at least one OLED display device respectively to control light emission. 8 . The OLED display panel of claim 6 , wherein the OLED display device is a top-emission type OLED display device; and the OLED display device, the polarizing layer and the light extraction layer are sequentially disposed on the base substrate along a direction distal to the base substrate. 9 . The OLED display panel of claim 6 , wherein the OLED display device is a bottom-emitting OLED display device; and the light extraction layer, the polarizing layer and the OLED display device are sequentially disposed on the base substrate along a direction distal to the base substrate. 10 . An OLED display device comprising the OLED display panel of claim 1 . 11 . The OLED display panel of claim 2 , further comprising: at least one OLED display device having a light emitting surface; wherein, the polarizing layer is located on a side of the light emitting surface of the OLED display device. 12 . The OLED display panel of claim 3 , further comprising: at least one OLED display device having a light emitting surface; wherein, the polarizing layer is located on a side of the light emitting surface of the OLED display device. 13 . The OLED display panel of claim 4 , further comprising: at least one OLED display device having a light emitting surface; wherein, the polarizing layer is located on a side of the light emitting surface of the OLED display device. 14 . The OLED display panel of claim 5 , further comprising: at least one OLED display device having a light emitting surface; wherein, the polarizing layer is located on a side of the light emitting surface of the OLED display device. 15 . The OLED display panel of claim 7 , wherein the OLED display device is a top-emission type OLED display device; and the OLED display device, the polarizing layer and the light extraction layer are sequentially disposed on the base substrate along a direction distal to the base substrate. 16 . The OLED display panel of claim 7 , wherein the OLED display device is a bottom-emitting OLED display device; and the light extraction layer, the polarizing layer and the OLED display device are sequentially disposed on the base substrate along a direction distal to the base substrate. 17 . The OLED display device of claim 10 , wherein, a refractive index of the light extraction layer is the same as a refractive index of the polarizing layer. 18 . The OLED display device of claim 17 , wherein, the refractive index of the light extraction layer is 1.8-2.2. 19 . The OLED display device of claim 10 , wherein, a material of the light extraction layer comprises scattering particles. 20 . The OLED display device of claim 19 , wherein, the scattering particles comprise silicon oxide particles.
Assignees
Inventors
Classifications
comprising scattering means · CPC title
comprising scattering means · CPC title
- H10K59/8791Primary
Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title
Electricity · mapped topic
- H01L51/5268Primary
Electricity · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2021210731A1 cover?
- The present disclosure provides an OLED display panel and an OLED display device, and belongs to the field of display technology. The OLED display panel of the present disclosure includes a base substrate and a display cover disposed opposite to each other; a polarizing layer disposed between the base substrate and the display cover; a light extraction layer disposed between the base substrate …
- Who is the assignee on this patent?
- Boe Technology Group Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10K59/8791. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 08 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).