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A kind of tandem organic light emitting diode, array substrate and display device

A light-emitting diode, tandem technology, applied in the direction of organic light-emitting devices, organic light-emitting device parameters, diodes, etc., can solve the problems of high energy consumption and high driving voltage of series-type organic light-emitting diodes for normal light emission, and achieve an increase in the number and a reduction in power consumption. The effect of consumption and increase in quantity

Active Publication Date: 2017-02-15
BOE TECH GRP CO LTD
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Problems solved by technology

[0004] The object of the present invention is to provide a series organic light emitting diode, an array substrate and a display device, which are used to solve the high driving voltage required for the normal light emission of the series organic light emitting diode, which causes the energy consumption of the normal light emission of the series organic light emitting diode high problem

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  • A kind of tandem organic light emitting diode, array substrate and display device
  • A kind of tandem organic light emitting diode, array substrate and display device

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Embodiment Construction

[0019] In order to further illustrate the tandem organic light emitting diodes, the array substrate and the display device provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

[0020] see figure 1 , The tandem organic light emitting diode provided by the embodiment of the present invention includes sequentially stacked anode 10, hole transport layer 11, first light emitting layer 12, N-type bulk heterojunction 13, PN junction bulk heterojunction 14, P-type Bulk heterojunction 15, second light-emitting layer 16, electron transport layer 17, and cathode 18; wherein, N-type bulk heterojunction 13 is N-type bulk heterojunction, and PN junction-type bulk heterojunction 14 is PN junction-type body Heterojunction, P-type bulk heterojunction 15 is a P-type bulk heterojunction. like figure 2 As shown, excitons will be generated in the N-type bulk heterojunction 13, the PN junction bulk hetero...

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Abstract

The invention discloses a serial organic light emitting diode, an array substrate and a display device, relates to the field of display technology, and aims to solve the problem that the serial organic light emitting diode requires a high driving voltage for normal light emission. The tandem organic light-emitting diode comprises an anode, a hole transport layer, a first light-emitting layer, a first charge generation layer, a second charge generation layer, a third charge generation layer, a second light-emitting layer, and an electron transport layer stacked in sequence and cathode; wherein, the first charge generation layer is an N-type bulk heterojunction, the second charge generation layer is a PN junction bulk heterojunction, and the third charge generation layer is a P-type bulk heterojunction. The array substrate includes a plurality of tandem organic light emitting diodes mentioned in the above technical solution, and the display device includes the array substrate mentioned in the above technical solution. The tandem organic light emitting diode provided by the present invention is applied to a display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a serial organic light emitting diode, an array substrate and a display device. Background technique [0002] At present, organic light-emitting diodes are widely used in display devices due to their low energy consumption, wide color gamut, wide viewing angle, and fast response. Among them, the current density of series organic light-emitting diodes is low, which can effectively avoid excess Due to the thermal quenching effect caused by the current, the tandem organic light emitting diode has become the core technology in the display device. [0003] The tandem organic light emitting diode in the prior art includes sequentially stacked anode, hole transport layer 1, light emitting layer 1, electron transport layer 1, charge generation layer, hole transport layer 2, light emitting layer 2, electron transport layer 2 and cathode. In the current tandem OLED, part of the carriers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L27/32
CPCH10K59/86H10K50/11H10K2101/40H10K50/17H10K2101/00Y02E10/549H10K85/211H10K50/19H10K2101/90H10K2101/30H10K30/30H10K50/15H10K50/16H10K85/60H10K85/311H10K85/342H10K85/622H10K85/623H10K85/636H10K85/654H10K85/6572
Inventor 毕文涛
Owner BOE TECH GRP CO LTD
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