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Array substrate, display panel and display apparatus

A technology of array substrate and substrate substrate, which can be used in instruments, organic semiconductor devices, digital data processing components, etc., and can solve problems such as the influence of electroluminescent devices

Active Publication Date: 2019-10-01
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an array substrate, a display panel and a display device, which are used to solve the problem in the related art that metal reflective structures have an impact on electroluminescent devices when increasing the brightness of each sub-pixel

Method used

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  • Array substrate, display panel and display apparatus
  • Array substrate, display panel and display apparatus
  • Array substrate, display panel and display apparatus

Examples

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Embodiment Construction

[0048] Array substrates in the related art, such as figure 1 As shown, among them, figure 1It is a top-emitting array substrate, that is, the light-emitting surface of the array substrate is located on the side away from the base substrate 101, and the array substrate includes: a base substrate 101, and a metal reflective electrode 102 located on the base substrate 101 for electrically The light emitted by the luminescent device is reflected, thereby enhancing the display brightness of the display panel; it also includes electroluminescent devices arranged in an array on the side of the metal reflective electrode 102 away from the substrate substrate, and each electroluminescent device includes sequentially stacked metal Reflective electrode 102, hole transport layer 103 (a, b or c), light emitting layer 104 (a, b or c), electron transport layer 105 (a, b or c) and upper electrode 106, wherein figure 1 The array substrate shown multiplexes the metal reflective electrode 102 a...

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Abstract

The invention discloses an array substrate, a display panel and a display apparatus. The array substrate includes an underlayment substrate, electroluminescent devices located on the underlayment substrate, and a reflection structure located on the side away from the light output surfaces of the electroluminescent devices. The reflection structure includes at least two groups of Bragg reflectors.Each group of Bragg reflectors is used to reflect the visible light in a preset waveband. Different groups of Bragg reflectors have different preset wavebands, and the preset wavebands do not overlapcompletely. The wavelength range of emission of each electroluminescent device overlaps the wavelength range of reflection of the Bragg reflector corresponding to the electroluminescent device. The reflection structure arranged in the array substrate is made of an insulating material, so that the corresponding problem in a metal reflection structure is avoided. Moreover, because the wavelength range of reflection of each Bragg reflector of the reflection structure in the invention is set to overlap the emission wavelength of the corresponding electroluminescent device, the light emitted by theelectroluminescent devices can be reflected.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate, a display panel and a display device. Background technique [0002] An electroluminescent device includes a plurality of sub-pixels to display images. Each sub-pixel includes at least an anode, a light emitting layer and a cathode. In the case where the anode and cathode provide holes and electrons to the light-emitting layer to form excitons, when the excitons drop to a stable bottom state, light of a predetermined wavelength is formed, that is, light that can emit red, green, blue, etc. of light emitting devices. [0003] In the related art, in order to improve the brightness of each sub-pixel, a metal reflective structure is arranged between each electroluminescence device and the base substrate. However, the metal surface morphology is affected by the manufacturing process, which will form a peak structure, which may cause short circuit or curr...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/10H10K50/856H10K71/00H10K50/852G06F1/1626H10K50/115H10K2102/102H10K2102/103
Inventor 鲍里斯·克里斯塔尔
Owner BOE TECH GRP CO LTD
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