White light emitting device, display substrate and display panel
A technology for light-emitting devices and display substrates, which is applied in the manufacturing of electrical solid-state devices, semiconductor devices, and semiconductor/solid-state devices, etc., can solve the problems of reducing the cost of light-emitting material selection, limited selection of light-emitting materials, etc., to improve the limited selection, reduce The effect of choosing the cost
Active Publication Date: 2020-07-17
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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[0003] In view of this, the object of the present invention is to propose a white light emitting device, a display substrate and a display panel, so as to improve the problem of limited selection of luminescent materials for the light emitting layer in white light emitting devices, and reduce the selection cost of luminescent materials
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[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0026] As mentioned in the background, the prior art has the problem of limited selection of luminescent materials. The inventors have found through research that the root cause of the above problems is that the existing schemes usually use a combination of red light, green light and blue light to form white light. The light host material and the blue light host material, and then select the guest material corresponding to the luminescent color, but most of the guest ma...
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The invention discloses a white light emitting device, a display substrate and a display panel. The white light emitting device comprises an anode, a light emitting layer and a cathode., the The light-emitting layer is located between the anode and the cathode. Wherein tThe light -emitting layer comprises a first light -emitting layer, a second light -emitting layer and a third light -emitting layer which are located on the same layer., the The first light -emitting layer comprises a first host material and a first object material, the second light -emitting layer comprises a second host material and a second object material, and the third light -emitting layer comprises a third host material and a third object material,; wherein the first object material, the second object material and the third object material are the same, and are all 3, 4-bis (9-anthracene)-N-methyl-maleimide. According to the invention, tThe problem of limited selection of luminescent materials of the light emitting layersluminescent layer in the white light emittingluminescent device is improved, and the selection cost of the luminescent materials is reduced.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a white light emitting device, a display substrate and a display panel. Background technique [0002] At present, many large-size OLED displays are colored by using white light plus color filters, because they do not require fine metal masks and are easy to achieve large sizes. However, due to the low light utilization efficiency of this method, there are special requirements for the efficiency and emission spectrum of white light OLEDs, which leads to limited selection of light emitting materials, which in turn limits the development of white light OLEDs. Contents of the invention [0003] In view of this, the object of the present invention is to provide a white light emitting device, a display substrate and a display panel, so as to improve the problem of limited selection of light emitting materials for the light emitting layer in the white light emitting device and reduce...
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IPC IPC(8): H01L51/50H01L27/32
CPCH10K59/38H10K50/12
Inventor 李晓晓周小康
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD