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Organic light emitting display panel and organic light emitting display device

A technology of light-emitting display and organic light-emitting elements, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems of color shift and change of OLED display devices, and achieve the effect of improving the problem of large-view angle shift

Active Publication Date: 2020-05-29
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, while improving the luminous efficiency and brightness of the OLED device, the microcavity effect often causes the electroluminescent spectrum of the OLED display device to change with the change of the observation angle, resulting in color shift when the OLED display device is observed at a large viewing angle.

Method used

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  • Organic light emitting display panel and organic light emitting display device
  • Organic light emitting display panel and organic light emitting display device
  • Organic light emitting display panel and organic light emitting display device

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Embodiment Construction

[0019] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should be understood that the term "an...

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Abstract

The present invention provides an organic light-emitting display panel and an organic light-emitting display device, which relate to the field of display technology and are used to improve the color shift phenomenon that occurs when the organic light-emitting display panel is observed at a large viewing angle in the prior art. The organic light-emitting display panel includes: an array substrate and an organic light-emitting element, the array substrate includes a plurality of driving elements; a plurality of the organic light-emitting elements are arranged corresponding to the driving elements; the organic light-emitting element includes an anode and a cathode, and An organic functional layer located between the anode and the cathode; wherein the cathode includes a first cathode layer, and the first cathode layer in the cathode of at least one organic light-emitting element is parallel to the organic light-emitting The plane of the surface of the display panel includes a first region and a second region, and the materials of the first region and the second region have different refractive indices for visible light of the same wavelength. The organic light emitting display panel is used to realize picture display.

Description

【Technical field】 [0001] The present invention relates to the field of display technology, in particular to an organic light emitting display panel and an organic light emitting display device. 【Background technique】 [0002] Organic Light-Emitting Diode (hereinafter referred to as OLED) display panels are widely used in the field of display technology because of their many advantages such as active light emission, high contrast ratio, and no viewing angle limitation. In a traditional OLED display panel structure, in order to improve the luminous efficiency of the OLED device, a microcavity structure is usually used to enhance the luminescence of the OLED device. [0003] Since the microcavity can increase the emission rate at the resonant wavelength while suppressing the emission rate at the non-resonant wavelength, the microcavity structure can significantly narrow the emission spectrum, increase the peak value, and improve the brightness and luminous efficiency of OLED de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52
CPCH10K50/822H10K50/858
Inventor 文磊程爽孙小千王湘成牛晶华那晓曦
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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