Display panel, manufacturing method and display device
By providing a high-refractive index condenser lens and a low-refractive index flat layer on the encapsulation layer of the OLED display panel, the problem of total light reflection is solved, the light output efficiency is improved and the light exit effect is enhanced.
CN114497421BActive Publication Date: 2025-03-28BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information
- Application Number
- CN202210135276.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-02-14
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2042-02-14
AI Technical Summary
Technical Problem
In the OLED display panel, light may be totally reflected after the encapsulation layer, causing light to be unable to emit and reducing light output efficiency.
Method used
A plurality of condenser lenses with high refractive index and a flat layer with low refractive index are arranged on the encapsulation layer to adjust the propagation of light so that light can be refracted into the condenser lens and the flat layer, and finally emitted from the flat layer.
Benefits of technology
The light output efficiency of the display panel is improved, the chance of total reflection of light is reduced, and the light output effect is enhanced through the light concentration effect.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a display panel, a preparation method and a display device, comprising: a substrate; a plurality of sub-pixels located on one side of the substrate; a packaging layer located on the side of the plurality of sub-pixels away from the substrate; a plurality of focusing lenses located on the side of the packaging layer away from the substrate; a flat layer located on the side of the packaging layer away from the substrate and coated on the plurality of focusing lenses, wherein the refractive index of the flat layer is less than the refractive index of the focusing lenses. After the light emitted by the plurality of sub-pixels passes through the focusing lenses and the flat layer made of high / low refractive index materials, the refractive index changes, and the transmission direction of the light also changes, so that the originally totally reflected light can be refracted and output, thereby facilitating the extraction of light lost in the optical waveguide. At the same time, by setting a plurality of focusing lenses, the light output can be concentrated to enhance the light output at each viewing angle and improve the light output efficiency.
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