Display panel and display device

By introducing a light-transmitting layer and a diffuser into the display panel, the problems of yellowish color and reduced contrast in vertically oriented display panels at side viewing angles are solved, achieving a clear display effect at wide viewing angles.

CN118393772BActive Publication Date: 2026-05-01CHANGSHA HKC OPTOELECTRONICS CO LTD +1
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Patent Information

Application Number
CN202410437833.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-11
Publication Date
2026-05-01
Estimated Expiration
2044-04-11

AI Technical Summary

Technical Problem

Vertically aligned display panels suffer from yellowish tint and reduced contrast when viewed from the side, causing users to lose sense of depth and detail when viewing from a wide angle.

Method used

A light-transmitting layer is introduced into the display panel. The light-transmitting layer includes a substrate and a diffuser. The diffuser protrudes or is recessed into the substrate to diffuse light. It is combined with a polarizer to control the polarization direction of the light and expand the emission range of the light.

Benefits of technology

The design of the diffuser improves the image quality of the display panel at wide viewing angles, ensuring that users can clearly see the displayed content from different angles and enhancing the image quality at side viewing angles.

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Abstract

The application provides a display panel and a display device. The display panel comprises: a color resistance layer, the color resistance layer comprising a plurality of color resistance unit groups arranged in sequence at intervals, each color resistance unit group comprising a plurality of color resistance units arranged in an array, the color resistance units being configured to transmit light; and a light transmission layer, the light transmission layer being arranged adjacent to a light exit side of the color resistance layer, the light transmission layer comprising a substrate and a plurality of diffusion groups arranged at intervals, the substrate being arranged opposite the color resistance layer, the plurality of diffusion groups being arranged on a side of the substrate away from the color resistance layer, each diffusion group comprising a plurality of diffusion portions, the diffusion portions being protruding or recessed from the substrate, and the diffusion portions being arranged at least partially opposite the color resistance units; when the display panel is in operation, light is incident on the light transmission layer via the color resistance layer, and then exits the display panel via the light transmission layer to a display surface of the display panel, the light has a first exit range via the color resistance layer, and the light has a second exit range via the light transmission layer, the second exit range being larger than the first exit range, thereby improving the display effect of the display panel at a side view angle.
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