公开(公告)号：US20230112331A1

公开(公告)日：2023-04-13

申请号：US17963887

申请日：2022-10-11

Applicant: Samsung Display Co., LTD.

Inventor： Jiye LEE ,  Sooyeon KIM ,  Hee-Jeong SEO ,  Jongsoo KIM ,  Heen Dol KIM ,  Chae Hee PARK ,  Youngsuk JUNG

IPC: H01L33/20 ,  H05K1/18 ,  H01L33/62 ,  H01L27/15

Abstract: A display device includes: a display panel comprising a display area including a plurality of pixels and a non-display area disposed around the display area; and a plurality of flexible printed circuit boards disposed in the non-display area along a first edge of the display panel, where distances of a first end portion of each of the flexible printed circuit boards from the first edge are different from each other.

公开(公告)号：US20210027680A1

公开(公告)日：2021-01-28

申请号：US16894075

申请日：2020-06-05

Applicant: Samsung Display Co., Ltd.

Inventor： Taegon IM ,  Sooyeon KIM ,  JiYe LEE ,  Hee-Jeong SEO ,  Junghwan CHO

IPC: G09G3/00 ,  G09G3/3225

Abstract: A display device includes a display panel including first and second panel pads electrically connected to each other, a connection board including first and second connection board pads connected to the first and second panel pads, respectively, an output pad, and a driving circuit. The driving circuit includes a pull-up resistor connected between a first voltage terminal and a first node, and a comparator configured to compare a voltage at the first node with a reference voltage and to output a contact test signal corresponding to a comparison result to the output pad. The first connection board pad is electrically connected to the first node, and the second connection board pad is connected to a second voltage terminal.

公开(公告)号：US20200265787A1

公开(公告)日：2020-08-20

申请号：US16709068

申请日：2019-12-10

Applicant: Samsung Display Co., Ltd.

Inventor： Taegon IM ,  Sooyeon KIM ,  Dongwon PARK ,  Jae-Han LEE ,  Jung Hwan CHO

IPC: G09G3/3291 ,  G09G3/36

Abstract: A display device includes a display panel, a source driver, and an alignment detection circuit. The display panel includes data lines and pads connected to the data lines. The source driver includes output lines connected to the pads to supply a data signal, and a detection circuit to selectively connect a first detection line supplied with a first detection voltage and a second detection line supplied with a second detection voltage to the output lines. The alignment detection circuit includes a detection capacitor connected between the first detection line and the second detection line, and a voltage detection circuit connected to one end of the detection capacitor to detect a voltage of the detection capacitor. The detection circuit connects a (2n−1)-th output line of the output lines to the first detection line, and connects a (2n)-th output line of the output lines to the second detection line.

公开(公告)号：US20210287594A1

公开(公告)日：2021-09-16

申请号：US17115838

申请日：2020-12-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sooyeon KIM ,  Hee-Jeong SEO ,  JiYe LEE ,  Taegon IM ,  JUNGHWAN CHO

IPC: G09G3/20

Abstract: Provided is a data driver including a digital to analog converter configured to convert image signal data into a plurality of data voltages, and an output buffer unit including a plurality of channels for outputting the plurality of data voltages. The output buffer unit includes a plurality of output blocks. Each output block includes one or more channels. Data voltages outputted from a first output block among the plurality of output blocks are delayed with a first time difference. Data voltages outputted from a second output block among the plurality of output blocks are delayed with a second time difference which is different from the first time difference.