Electroluminescent display backboard, preparation method thereof, and display device

An electroluminescence display and backplane technology, which is applied to circuits, electrical components, electrical solid-state devices, etc., can solve problems to be improved, and achieve the effects of achieving consistency, improving film thickness uniformity, and improving production efficiency.

Active Publication Date: 2018-05-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current electroluminescent display backplane and its preparation method and display device still need to be improved.

Method used

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  • Electroluminescent display backboard, preparation method thereof, and display device
  • Electroluminescent display backboard, preparation method thereof, and display device
  • Electroluminescent display backboard, preparation method thereof, and display device

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] In one aspect of the present invention, the present invention provides a method for preparing an electroluminescent display backplane. The method can easily obtain an electroluminescent display backplane, and the prepared electroluminescent display backplane can meet the consistency of the dry atmosphere between the display area and the peripheral area during film formation by inkjet printing without setting a pixel defining layer, and can Significantly improve the uniformity of film thickness in the display area, and at the same ...

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PUM

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Abstract

The invention discloses an electroluminescent display backboard, a preparation method thereof, and a display device. The preparation method of the electroluminescent display backboard includes the steps: printing ink in a display area of a substrate, wherein the ink includes a luminescent layer material, and a solvent which can dissolve the luminescent layer material; and printing the solvent in the areas outside the display area. Therefore, the preparation method of the electroluminescent display backboard can simply obtain an electroluminescent display backboard. The prepared electroluminescent display backboard can satisfy the dry atmosphere consistency of the display area and the peripheral areas during the ink-jet printing film forming process, can improve the film thickness uniformity of the display area, and can be conductive to the design demand of large size and narrow frame at the same time.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an electroluminescent display backplane, a preparation method thereof, and a display device. Background technique [0002] Currently, organic electroluminescent (OLED) display technology is developing rapidly. As an important kind of OLED display technology, polymer electroluminescence (PLED) display technology is more and more widely used. The technology of preparing PLED display devices by inkjet printing (inkjet printing PLED technology) has the advantages of simple operation, low cost, simple process, and easy realization of large size, and with the continuous research and development of high-performance polymer materials and thin films The further improvement of the preparation technology is expected to realize the rapid industrialization. Inkjet printing is to spray a solution containing active materials, such as hole transport materials (such as PEDOT / PSS (doped polyani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/00H10K59/12H10K50/841H10K50/84H10K71/135H10K71/15H10K59/122H10K50/8426H10K71/00
Inventor 崔颖
Owner BOE TECH GRP CO LTD
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