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OLED devices and display devices

A device and sub-pixel technology, applied in the field of display, can solve problems such as abnormal color shift, crosstalk between adjacent sub-pixels, color coordinate shift, etc., and achieve the effect of avoiding color coordinate shift and preventing crosstalk of light

Active Publication Date: 2020-05-05
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of low grayscale display, because the voltage between the cathode 12 and the anode 17 is small, that is, the electrons are subjected to a small electric field force, the movement of some electrons is more affected by diffusion than by the electric field force. It will easily diffuse to the adjacent sub-pixel area, and migrate to the organic light-emitting layer of the adjacent sub-pixel, and recombine with the holes in the adjacent sub-pixel to emit light, thereby causing crosstalk to the light emission of the adjacent sub-pixel
This causes the color coordinates of adjacent sub-pixels to shift, resulting in an abnormal color cast

Method used

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  • OLED devices and display devices
  • OLED devices and display devices
  • OLED devices and display devices

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The following embodiments of the present invention provide a display device, which includes but is not limited to a display panel. The display device includes an OLED device. The OLED devices include but are not limited to AMOLED devices, such as PMOLED (Passive Matrix Organic Light Emitting Diode, passive matrix organic light emitting diode), FOLED (Flexible OLED, flexible organic light emitting diode) and the like.

[0028] Such as figure 2 As show...

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Abstract

The invention discloses an OLED device, which comprises a substrate, on which a plurality of OLED sub-pixels are arranged, wherein an insulating barrier is arranged between every two adjacent OLED sub-pixels with different colors, the The spacer is used to block the carrier diffusion between the two OLED sub-pixels. The invention also discloses a display device comprising the OLED device. The solution of the present invention can prevent luminescence crosstalk between adjacent OLED sub-pixels, and avoid color coordinate shifting of OLED sub-pixels.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED device and a display device comprising the OLED device. Background technique [0002] AMOLED (Active Matrix Organic Light Emitting Diode, Active Matrix Organic Light Emitting Diode) display is a self-luminous display using OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) technology. It has the advantages of wide color gamut, high contrast ratio, ultra-thin design and lower power consumption, so it is becoming the first choice for next-generation display technology. [0003] Such as figure 1 As shown, a sub-pixel structure of an AMOLED display includes sequentially stacked cover 1, cathode 12, electron transport layer 13, organic light-emitting layers 141-143, hole transport layer 15, hole injection layer 16, anode 17, array Substrate 18 etc. When a certain voltage is applied between the cathode 12 and the anode 17 , electrons are injected from the cat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32
CPCH10K59/126H10K59/122
Inventor 陈彩琴申智渊明星孙涛孟林赵瑜
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD