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Organic light emitting diode display

A technology for light-emitting diodes and displays, applied in organic semiconductor devices, electroluminescent light sources, light sources, etc., can solve problems such as low efficiency and uneven color distribution

Pending Publication Date: 2021-12-14
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such tradeoffs can lead to lower efficiency and uneven color distribution

Method used

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  • Organic light emitting diode display
  • Organic light emitting diode display
  • Organic light emitting diode display

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Embodiment Construction

[0025] In the following description, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration various embodiments. It is to be understood that other embodiments can be conceived and made without departing from the scope or spirit of the present disclosure. Therefore, the following detailed description should not be considered as limiting.

[0026] The present disclosure relates to an organic light emitting diode (OLED) display having a first stack and a second stack of layers. The angular spectral distribution of the light emitted by the second stack is different compared to the angular spectral distribution of the light emitted by the first stack. This is achieved by designing the first stack and the second stack such that the light emitted by the first stack resonates and the light emitted by the second stack does not resonate. Specifically, the first stack and the second stack include a first layer and a second...

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Abstract

An organic light emitting diode (OLED) display is disclosed. The OLED display includes a first stack having a first emission layer and a first layer. The first emission layer emits red light, green light, or blue light. The OLED display includes a second stack having a second emission layer and a second layer. The second stack emits light of a different angular spectral distribution as that emitted by the first stack. Further, a thickness of the second layer is different from a thickness of the first layer such that light emitted by the first emission layer resonates within the first stack at a first degree and light emitted by the second emission layer resonates within the second stack at a second degree, the first degree being greater than the second degree.

Description

technical field [0001] The present disclosure generally relates to organic light emitting diode (OLED) displays. Background technique [0002] Many kinds of OLED displays are known. Some OLED displays have a pixelated OLED display panel that includes an array of individually addressable OLED pixels or sub-pixels. Such pixelated OLED displays are becoming increasingly popular for use in various electronic devices, such as in mobile phones, televisions and similar end uses. Some OLED displays, known as "bottom emitting" OLED displays, emit light through the translucent substrate on which the OLED display is fabricated. Other OLED displays, known as "top emitting" OLED displays, emit light in the opposite direction, away from the substrate on which the OLED display is fabricated. [0003] In various configurations of OLED displays, each of the red, green, and blue subpixels can exhibit a color shift that varies with viewing angle, especially when the OLED subpixels are optim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/50H01L51/52H05B33/24
CPCH05B33/24H05B33/26H10K59/30H10K59/35H10K50/157H10K50/16H10K50/15H10K59/876H10K59/351H10K50/818H10K50/828H10K50/852H10K2102/103H10K2102/351H10K2102/3026
Inventor 尼古拉斯·C·埃里克森斯蒂芬·M·门克
Owner 3M INNOVATIVE PROPERTIES CO