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Display panel, preparation method and display device

A display panel and main display technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as life impact and device life reduction, and achieve the effect of improving service life

Active Publication Date: 2020-01-17
BOE TECH GRP CO LTD +1
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AI Technical Summary

Problems solved by technology

[0006] The lifespan of OLED devices is significantly affected by the carrier balance. When the relative concentration of electrons increases, the lifespan of the device decreases. At present, it is urgent to provide a device that can reduce the brightness difference between the main and secondary display areas that occurs after long-term use of foldable products.

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  • Display panel, preparation method and display device
  • Display panel, preparation method and display device
  • Display panel, preparation method and display device

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0044] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0045] Such as figure 1 As shown, an embodiment of the present invention provides a display panel, which includes a main display area 10 and a secondary display area 20, the boundary line between the main display area 10 and the secondary display area 20 is a folding line, and the display panel can...

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Abstract

The invention discloses a display panel, a preparation method and a display device, the display panel comprises a main display area and an auxiliary display area, and the boundary of the main displayarea and the auxiliary display area is a folding line; the display panel including a functional layer, the functional layer comprises an anode layer, a hole transport layer, a light emitting layer, anelectron transport layer and a cathode layer which are stacked in sequence. The proportion of the longitudinal section of the electron transport layer of the main display area to the longitudinal section of the functional layer of the main display area is larger than the proportion of the longitudinal section of the electron transport layer of the auxiliary display area to the longitudinal section of the functional layer of the auxiliary display area. The end, away from the folding line, of the main display area and the end, away from the folding line, of the auxiliary display area are in thelongitudinal section direction, the service life of the main display area is effectively prolonged, the service life of the main and auxiliary display areas is balanced, and brightness difference ofthe main and auxiliary display areas after long-term use is avoided.

Description

technical field [0001] The present invention generally relates to the field of display technology, and in particular to a display panel, a manufacturing method and a display device. Background technique [0002] Organic Light Emitting Diode (OLED) device is a device that makes organic materials emit light under the action of an electric field. It has the characteristics of high contrast, ultra-thin, and short response time. [0003] At present, OLED technology is advancing by leaps and bounds, and curved screen products are gradually coming out, but there are some obvious defects in curved screens, such as the difference in brightness and life span caused by the difference in the use of the main display area screen and the auxiliary display area screen, which affects the display effect , thereby seriously affecting the user experience. [0004] Regarding the curved screen, when observing two areas with the same hue but different brightness placed side by side, it can be fou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/50H01L51/56
CPCH10K59/10H10K50/16H10K50/15H10K71/00
Inventor 周威龙
Owner BOE TECH GRP CO LTD
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