Display panel and display device

CN115696993BActive Publication Date: 2026-06-30BOE TECHNOLOGY GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECHNOLOGY GROUP CO LTD
Filing Date
2022-11-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

When improving the color gamut, existing OLED display panels adjust the white light color point by changing the yellow light in the white emitted light to green light, which leads to reduced luminous efficiency and increased power consumption.

Method used

A color conversion unit is introduced into the display panel. The absorption peak is between 525 and 535 nm, the half-width at half-maximum (WHM) is less than 30 nm, the emission peak is between 550 and 560 nm, and the WHM is less than 40 nm. It is used to convert green light in white light into yellow light, adjust the white light color point, and keep the proportion of red light unchanged.

Benefits of technology

It improves the luminous efficiency of the display panel, reduces power consumption, and enables effective adjustment of the white light color point.

✦ Generated by Eureka AI based on patent content.

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Abstract

This disclosure relates to a display panel and display device. The display panel has a color conversion unit disposed on the light-emitting side of the pixel layer. The absorption peak of the color conversion unit is between 525 and 535 nm, with a full width at half maximum (FWHM) of less than 30 nm, and the emission peak is between 550 and 560 nm, with a FWHM of less than 40 nm. It is understood that the absorption spectrum of the color conversion layer material only overlaps with the green light in the white light spectrum; therefore, the color conversion unit material can only absorb green light and cannot absorb blue light. By converting the green light in white light into yellow light through the color conversion unit, the color point of the white light can be adjusted, thereby improving the luminous efficiency of the display panel and reducing power consumption.
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