公开(公告)号：US10950680B2

公开(公告)日：2021-03-16

申请号：US16453420

申请日：2019-06-26

申请人： LG Display Co., Ltd.

发明人： Dong-Hyeok Lim ,  Song-Yi Jeong ,  Kyu-Il Han ,  Nam-Seok Yoo ,  Yu-Ri Park

IPC分类号： H01L27/32 ,  H01L51/00 ,  H01L29/08 ,  H01L35/24

摘要： A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.

公开(公告)号：US11605676B2

公开(公告)日：2023-03-14

申请号：US17346702

申请日：2021-06-14

申请人： LG Display Co., Ltd.

发明人： Song-Yi Jeong

IPC分类号： H01L27/32 ,  H01L51/50

摘要： A display device achieves a high resolution and a low power consumption through provision of subpixels each including a single light emitting layer and subpixels each including a plurality of overlapping light emitting layers. In the display device, it is also unnecessary to increase the number of expensive fine metal masks even for rendering of various grayscales. In addition, in the display device, different light emitting layers overlap with each other, and a charge generation layer is disposed between the overlapping light emitting layers, and, as such, emission of a secondary color can be achieved without necessity of a material for an additional light emitting layer of the secondary color.

公开(公告)号：US11849620B2

公开(公告)日：2023-12-19

申请号：US17346702

申请日：2021-06-14

申请人： LG Display Co., Ltd.

发明人： Song-Yi Jeong

IPC分类号： H01L27/32 ,  H10K59/35 ,  H10K50/15 ,  H10K50/16 ,  H10K59/122

CPC分类号： H10K59/353 ,  H10K50/157 ,  H10K50/167 ,  H10K59/122

摘要： A display device achieves a high resolution and a low power consumption through provision of subpixels each including a single light emitting layer and subpixels each including a plurality of overlapping light emitting layers. In the display device, it is also unnecessary to increase the number of expensive fine metal masks even for rendering of various grayscales. In addition, in the display device, different light emitting layers overlap with each other, and a charge generation layer is disposed between the overlapping light emitting layers, and, as such, emission of a secondary color can be achieved without necessity of a material for an additional light emitting layer of the secondary color.

公开(公告)号：US11435842B2

公开(公告)日：2022-09-06

申请号：US15981569

申请日：2018-05-16

申请人： LG Display Co., Ltd.

发明人： Sang-Soon Yoon ,  You-Hyun Eom ,  Song-Yi Jeong

IPC分类号： G06F3/041 ,  G02F1/1333 ,  G02F1/1335 ,  G06F3/044 ,  G02F1/13357

摘要： A touch display device including: first and second substrates facing and spaced apart from each other, the first and second substrates including red, green and blue sub-pixels; a polarizing layer on an outer surface of the first substrate; a pixel electrode and a common electrode in each of the red, green and blue sub-pixels on an inner surface of the first substrate; a color filter layer on an inner surface of the second substrate; a wire grid polarizing layer on the color filter layer, the wire grid polarizing layer including a plurality of bars, and a touch signal applied to the wire grid polarizing layer; a liquid crystal layer between the first and second substrates; and a backlight unit under the first substrate.

公开(公告)号：US11088214B2

公开(公告)日：2021-08-10

申请号：US16727258

申请日：2019-12-26

申请人： LG Display Co., Ltd.

发明人： Song-Yi Jeong

IPC分类号： H01L27/32 ,  H01L51/50

摘要： A display device achieves a high resolution and a low power consumption through provision of subpixels each including a single light emitting layer and subpixels each including a plurality of overlapping light emitting layers. In the display device, it is also unnecessary to increase the number of expensive fine metal masks even for rendering of various grayscales. In addition, in the display device, different light emitting layers overlap with each other, and a charge generation layer is disposed between the overlapping light emitting layers, and, as such, emission of a secondary color can be achieved without necessity of a material for an additional light emitting layer of the secondary color.

公开(公告)号：US10802355B2

公开(公告)日：2020-10-13

申请号：US16201751

申请日：2018-11-27

申请人： LG Display Co., Ltd.

发明人： Won-Taeck Kim ,  You-Hyun Eom ,  So-Hyeong Ahn ,  Song-Yi Jeong

IPC分类号： G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1347 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/137

摘要： A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having a pixel region; a gate line and a data line on an inner surface of the first substrate, the gate line and the data line crossing each other adjacent to the pixel region; a thin film transistor connected to the gate line and the data line in the pixel region; a first electrode of a plate shape over the thin film transistor; a second electrode of a bar shape over the first electrode; and a liquid crystal layer between the first and second substrates.