公开(公告)号：US10418427B2

公开(公告)日：2019-09-17

申请号：US15513643

申请日：2015-09-25

Applicant: JOLED INC.

Inventor： Masashi Goto ,  Takao Nagumo ,  Takayuki Miyoshi

IPC: H01L27/32 ,  B41J2/045 ,  H01L51/00 ,  H01L51/56 ,  B41J2/21 ,  B41J2/51 ,  H01L51/52

Abstract: Forming functional layers including functional material in application regions by applying ink to the application regions then drying the ink, which contains the functional material, by causing nozzles to be scanned relative to the substrate along the row direction while, among the nozzles, only use-nozzles that are not selected as a defective nozzle eject the ink, the nozzles being arranged in the column direction over the substrate and including a nozzle selected in advance as a defective nozzle. Among the nozzles, when applying the ink, at least one reserve nozzle is present, a reserve nozzle being a nozzle that is not one of the use-nozzles, is not selected as the defective nozzle, passes over the application region, and does not eject the ink.

公开(公告)号：US10714549B2

公开(公告)日：2020-07-14

申请号：US16282602

申请日：2019-02-22

Applicant: JOLED INC.

Inventor： Masashi Goto ,  Yoichi Shintani

IPC: H01L21/00 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56 ,  H01L51/50

Abstract: An organic EL display panel including organic light emitting layers, each continuous in a column direction, in gaps between column banks. The organic light emitting layer in a gap end region extending in the column direction from a column direction end of the gap to a reference position a defined distance from the column direction end towards a display region and within a peripheral region has a volume greater than volumes of the organic light emitting layers in gap end regions extending in the column direction from column direction ends of the gaps to the reference position.

公开(公告)号：US09082732B2

公开(公告)日：2015-07-14

申请号：US14365698

申请日：2012-12-27

Applicant: JOLED INC.

Inventor： Masashi Goto

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L51/50

CPC classification number: H01L27/3246 ,  H01L27/3211 ,  H01L27/3218 ,  H01L51/0005 ,  H01L51/5012 ,  H01L51/5243 ,  H01L51/56 ,  H01L2227/323

Abstract: An organic EL display panel including organic light-emission layers formed according to an inkjet method and suppressing decrease in image display quality caused by stripe unevennesses, and a method of manufacturing the same. In a bank layer forming process, openings belonging to a first array and openings belonging to a second array that is adjacent to the first in a row direction are offset with respect to one another in the column direction. In an organic light-emission layer forming process, a head unit is caused to move in a row direction, and nozzles used are switched between the first and second arrays. When a nozzle ejecting an erroneous ink volume is switched between being used and not being used, continuous forming of organic light-emission layers having a same, erroneous film thickness in the row direction is prevented. Thus, unevenness in luminance is suppressed.

Abstract translation: 一种包括根据喷墨方法形成的有机发光层并抑制由条纹不均匀引起的图像显示质量降低的有机EL显示面板及其制造方法。 在堤层形成工序中，属于第一阵列的开口属于与行方向上的第一阵列相邻的第二阵列的开口在列方向上相对于彼此偏移。 在有机发光层形成过程中，使头单元沿行方向移动，并且使用的喷嘴在第一和第二阵列之间切换。 当在使用和未被使用之间切换喷射错误墨水体积的喷嘴时，可以连续地形成具有相同的有机发光层，从而防止在行方向上的错误的膜厚度。 因此，抑制了亮度的不均匀。