公开(公告)号：US20230169913A1

公开(公告)日：2023-06-01

申请号：US17952013

申请日：2022-09-23

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungSeok RYOO ,  Byeong-Seong SO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2330/028 ,  G09G2300/0876

Abstract: The present disclosure relates to a power supply device including a gate driving circuit configured to supply gate signals to a plurality of gate lines, a first power supply circuit configured to supply a first initialization voltage having a voltage level between a first voltage level and a second voltage level to a plurality of first initialization power lines, the first initialization voltage having the first voltage level in a first period, a third voltage level between the first and second voltage levels in a second period, and the second voltage level in a third period, and a second power supply circuit configured to supply a driving voltage to a plurality of driving power lines among the plurality of power lines, and a display device including the power supply device.

公开(公告)号：US20230157072A1

公开(公告)日：2023-05-18

申请号：US17951983

申请日：2022-09-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Youngsung CHO ,  Byeong-Seong SO

IPC: H01L27/32 ,  H01L27/12

CPC classification number: H01L27/3262 ,  H01L27/3265 ,  H01L27/3234 ,  H01L27/323 ,  H01L27/3276 ,  H01L27/3218 ,  H01L27/3272 ,  H01L27/124

Abstract: A display device is disclosed. The display device comprises a display panel including an optical area and a normal area in a display area, and an optical electronic device overlapping at least a portion of the optical area. Two or more subpixels and a lower shield metal may be disposed in a non-transmission area between adjacent transmission areas in the optical area. In the non-transmission area of the optical area, the lower shield metal may include at least one opening overlapping all or a portion of a specific transistor among two or more transistors included in each of the two or more subpixels disposed in the non-transmission area in the optical area.

公开(公告)号：US20220199944A1

公开(公告)日：2022-06-23

申请号：US17384395

申请日：2021-07-23

Applicant: LG Display Co., Ltd.

Inventor： Byeong-Seong SO

IPC: H01L51/52 ,  H01L27/32

Abstract: The present disclosure relates to a display apparatus. The display apparatus includes a plurality of light-transmitting areas disposed between the plurality of pixels. The light-transmitting area is formed between structures disposed in the light-emitting area adjacent to the light-transmitting area, and the structure physically disconnects a cathode layer of the light-emitting area and a cathode layer of the light-transmitting area. The cathode layer may be patterned in the light-transmitting area. Accordingly, when patterning is performed with a laser, it is possible to prevent the edge of the cathode layer from being curled in the outer portion of the light-transmitting area. In addition, it is possible to pattern with low energy and solve the damage due to thermal energy of the laser beam by preventing heat conduction to the light-emitting area of the light-emitting device layer. Further, it is possible to improve the reliability by blocking the moisture permeable path.

公开(公告)号：US20230217724A1

公开(公告)日：2023-07-06

申请号：US17987623

申请日：2022-11-15

Applicant: LG Display Co., Ltd.

Inventor： SeungSeok RYOO ,  Byeong-Seong SO

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3246 ,  H01L51/5284

Abstract: Discussed is a display device including a substrate, a circuit element on the substrate, a light emitting element electrically connected to the circuit element and including a first electrode, a light emitting layer, and a second electrode. A bank can define the emission area where the first electrode is exposed, and define the non-emission area where the bank is located, a taper pattern can be on the substrate and interposed between the circuit element and the bank at the non-emission area. The bank can include an incline extending from an edge of the emission area to a predetermined distance into the non-emission area, the incline of the bank defining a taper area, and the taper pattern can be adjacent to or overlap the taper area.

公开(公告)号：US20230075883A1

公开(公告)日：2023-03-09

申请号：US17875759

申请日：2022-07-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungwoo JUN ,  Byeong-Seong SO

IPC: H01L27/32

Abstract: A display panel of a display device includes a display area including a first optical area overlapping with a first optical electronic device and a normal area located outside of the first optical area, the first optical area includes a plurality of light emitting areas and a plurality of first transmission areas, and the normal area may include a plurality of light emitting areas, a plurality of signal lines may include a first horizontal line including a first optical horizontal line portion disposed in the first optical area, and a non-optical horizontal line portion disposed in the normal area, and a second horizontal line disposed in the normal area without being disposed in the first optical area, a first outer horizontal line portion disposed in an outer area in the first optical area has a greater length per unit area compared to other portions thereof, or a width of all or a portion of the first horizontal line may be smaller than a width of the second horizontal line, thereby compensating for an RC load difference between the horizontal lines.

公开(公告)号：US20140152629A1

公开(公告)日：2014-06-05

申请号：US14082682

申请日：2013-11-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Byeong-Seong SO ,  Seung-Ho HEO ,  JoungMi CHOI

IPC: G11C19/28 ,  G09G3/20

CPC classification number: G11C19/28 ,  G09G3/3266 ,  G09G3/3677

Abstract: Disclosed are a shift register and a flat panel display device. The shift register includes a plurality of stages that supply a gate-on voltage pulse to a plurality of gate lines formed in a display panel. Each of the stages includes a pull-up transistor configured to supply one of a plurality of clock signals to an output node according to a voltage of a first node, a pull-down transistor configured to supply a gate-off voltage to the output node according to a voltage of a second node, a node controller configured to control the voltages of the first and second nodes on the basis of a gate start signal, and a switching unit connected to at least two gate lines adjacent to the output node, and configured to sequentially supply gate-on voltage pulses having different pulse widths to the at least two adjacent gate lines using the clock signal.

Abstract translation: 公开了一种移位寄存器和平板显示装置。 移位寄存器包括向形成在显示面板中的多个栅极线提供栅极导通电压脉冲的多个级。 每个级包括上拉晶体管，其被配置为根据第一节点的电压将多个时钟信号中的一个提供给输出节点，被配置为向输出节点提供栅极截止电压的下拉晶体管 根据第二节点的电压，被配置为基于门开始信号来控制第一和第二节点的电压的节点控制器和连接到与输出节点相邻的至少两个栅极线的开关单元，以及 被配置为使用时钟信号向至少两个相邻的栅极线顺序地提供具有不同脉冲宽度的栅极导通电压脉冲。

公开(公告)号：US20230189605A1

公开(公告)日：2023-06-15

申请号：US18059936

申请日：2022-11-29

Applicant: LG Display Co., Ltd.

Inventor： SeungSeok RYOO ,  Byeong-Seong SO

IPC: H10K59/35 ,  H10K59/65 ,  H10K59/131 ,  G09G3/3291 ,  G09G3/3266 ,  H10K59/121 ,  H01L27/12

CPC classification number: H01L27/3218 ,  H01L27/3234 ,  H01L27/3276 ,  G09G3/3291 ,  G09G3/3266 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/124 ,  H01L27/1255 ,  G09G2320/0673 ,  G09G2320/0233 ,  G09G2310/08

Abstract: The present disclosure provides a display device including a plurality of subpixels disposed in a display area for displaying images, each of the subpixels including a light emitting element, a driving transistor for driving the light emitting element. The display area may include a first area, a second area surrounding the first area, and a third area between the first area and the second area. First, second, and third subpixels among the plurality of subpixels are disposed in the first, second, and third areas, respectively. When first data corresponding to the first subpixel is equal to second data corresponds to the second subpixel, the luminance of the first subpixel may be greater than the luminance of the second subpixel.

公开(公告)号：US20210201782A1

公开(公告)日：2021-07-01

申请号：US17116770

申请日：2020-12-09

Applicant: LG Display Co., Ltd.

Inventor： Hyung-Uk JANG ,  Byeong-Seong SO ,  Young-Sung CHO

IPC: G09G3/3233

Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, the driving transistor generating pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator controlling voltages of the first to fourth nodes in accordance with operations of a plurality of switching transistors in an initialization period, a data writing period and an emission period, and a refresh transistor configured to apply the high-level source voltage to the second node in accordance with a scan signal in a refresh period preceding an initialization period.

公开(公告)号：US20140354523A1

公开(公告)日：2014-12-04

申请号：US14290808

申请日：2014-05-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Byeong-Seong SO ,  Joung-Mi CHOI

IPC: G09G3/36

CPC classification number: G11C19/28 ,  G09G3/3677 ,  G09G2310/0286

Abstract: Disclosed is a shift register including stages for sequentially outputting output pulses including carry and scan pulses. Odd-numbered stages supply corresponding scan pulses to odd-numbered gate lines in a sequential manner, and even-numbered stages supply corresponding scan pulses to even-numbered gate lines in a sequential manner. Each stage includes a carry output unit for generating a carry pulse, based on a first discharge voltage and a clock pulse having a low-level voltage equal to the first discharge voltage, and supplying the carry pulse to at least one of upstream and downstream stages, and a scan output unit for generating a scan pulse, based on a second discharge voltage having a higher voltage than the first discharge voltage and the clock pulse, and supplying the scan pulse to a corresponding gate line.

Abstract translation: 公开了一种移位寄存器，包括用于顺序地输出包括进位和扫描脉冲的输出脉冲的级。 奇数级以顺序方式将相应的扫描脉冲提供给奇数编号的栅极线，偶数级以顺序方式将对应的扫描脉冲提供给偶数编号的栅极线。 每个级包括进位输出单元，用于基于第一放电电压和具有等于第一放电电压的低电平电压的时钟脉冲产生进位脉冲，并且将进位脉冲提供给上游和下游级中的至少一个 以及扫描输出单元，用于基于具有比第一放电电压和时钟脉冲更高的电压的第二放电电压产生扫描脉冲，并将扫描脉冲提供给相应的栅极线。

公开(公告)号：US20230200186A1

公开(公告)日：2023-06-22

申请号：US18073371

申请日：2022-12-01

Applicant: LG DISPLAY CO., LTD.

Inventor： SeungSeok RYOO ,  Byeong-Seong SO

IPC: H10K59/65 ,  H10K59/122 ,  H10K71/00 ,  H10K50/86 ,  H10K59/131

CPC classification number: H01L27/3234 ,  H01L27/3246 ,  H01L51/56 ,  H01L51/5284 ,  H01L27/3276

Abstract: The present disclosure provides a display device that by including a spacer located outside of a first transmission area and located on a bank, enables a second electrode to be easily opened in the first transmission area using a sacrificial layer, and thereby, is capable of improving the transmittance of the first transmission area and preventing a decrease in the transmittance due to a residue remaining in the transmission area in the process of forming an opening of the second electrode, and a method of manufacturing the display device.