公开(公告)号：EP4207328A1

公开(公告)日：2023-07-05

申请号：EP21936746.3

申请日：2021-10-22

申请人： BOE Technology Group Co., Ltd. ,  Hefei Boe Joint Technology Co., Ltd.

发明人： LIAO, Chinlung ,  JIA, Wenbin ,  WANG, Hongli

IPC分类号： H01L51/56 ,  H01L51/00 ,  H01L27/32

摘要： The present application provides a manufacturing method for a display substrate, a display substrate, and a display device. The uniformity of film thicknesses of light-emitting functional layers in sub-pixel regions of different colors can be achieved, the effective aperture ratio of the sub-pixel regions of different colors can be ensured, and the service life of the device can be prolonged. The manufacturing method comprises: providing a base substrate, the base substrate comprising a plurality of sub-pixel regions of different colors; printing a solution of a light-emitting functional layer in each sub-pixel region, wherein the volumes of the solution in the sub-pixel regions of different colors are positively correlated with the saturated vapor pressure of the solution; and performing vacuum drying on the solution to form light-emitting functional layers having uniform film thicknesses.

公开(公告)号：EP3200227A1

公开(公告)日：2017-08-02

申请号：EP15750914.2

申请日：2015-01-16

申请人： BOE Technology Group Co., Ltd.

发明人： IGUCHI, Shinsuke ,  LIAO, Chinlung ,  GAO, Xue

IPC分类号： H01L27/02 ,  H01L21/77

CPC分类号： H01L27/3211 ,  H01L21/77 ,  H01L27/3246 ,  H01L27/3283 ,  H01L51/0005 ,  H01L51/5012 ,  H01L51/56 ,  H01L2227/323

摘要： The present disclosure provides an electroluminescent device, its manufacturing method, a display substrate and a display device. The electroluminescent device includes a substrate, and a pixel defining layer arranged on the substrate. A pixel aperture matrix is formed in the pixel defining layer, at least one connection channel is formed on the pixel defining layer, an electroluminescent layer in a predetermined color is formed in each pixel aperture of the pixel aperture matrix, and the connection channel is configured to connect at least two pixel apertures of the pixel aperture matrix in an identical row or column and corresponding to the electroluminescent layers in an identical color. According to the present disclosure, through the connection channels formed on the pixel defining layer, when the solution of the electroluminescent material is dripped into the pixel aperture, the amounts out the solution of the electroluminescent material in the pixel apertures in an identical row or column and corresponding to the electroluminescent layers in an identical color are the same, and the electroluminescent layers formed after the drying are of an identical thickness. As a result, it is able to enable the electroluminescent device to emit light in an even manner, thereby to improve the performance of the electroluminescent device.

摘要翻译： 本发明提供了一种电致发光器件及其制造方法，显示基板和显示装置。 电致发光器件包括基板和布置在基板上的像素限定层。 在像素限定层中形成像素孔径矩阵，在像素限定层上形成至少一个连接通道，在像素孔径矩阵的每个像素孔径中形成预定颜色的电致发光层，并且连接通道被配置 以连接相同行或列中的像素孔径矩阵的至少两个像素孔径并且对应于相同颜色的电致发光层。 根据本公开，通过形成在像素限定层上的连接通道，当电致发光材料的溶液滴入像素孔时，电致发光材料在像素孔中的溶液在相同的行或列中 与相同颜色的电致发光层对应的厚度相同，干燥后形成的电致发光层厚度相同。 结果，能够使电致发光装置以均匀的方式发光，由此改善电致发光装置的性能。

公开(公告)号：EP3701565A1

公开(公告)日：2020-09-02

申请号：EP18833589.7

申请日：2018-06-12

申请人： BOE Technology Group Co., Ltd. ,  Hefei Xinsheng Optoelectronics Technology Co., Ltd.

发明人： WANG, Xinxin ,  LIAO, Chinlung ,  SONG, Lifang ,  HU, Yue ,  YE, Zhijie

IPC分类号： H01L27/12 ,  H01L21/77