公开(公告)号：US20200265776A1

公开(公告)日：2020-08-20

申请号：US16719871

申请日：2019-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Yong Song ,  Jeong Kyoo Kim ,  Jae Keun Lim

IPC: G09G3/32

Abstract: A display device includes a plurality of pixels respectively coupled to first scan lines, second scan lines and data lines; and a scan driver to supply first scan signals to the first scan lines and second scan signals to the second scan lines, wherein the pixel includes a first transistor having a gate electrode connected to a first node, one electrode connected to a first power line, and other electrode connected to a second node; a second transistor having a gate electrode connected to a first scan line, one electrode connected to a data line, and other electrode connected to the first node, the second transistor being turned on in a first time period of a frame when the first scan signal is applied; a third transistor having a gate electrode connected to a second scan line, one electrode connected to the second node, and other electrode connected to an initialization line, the third transistor being turned on in the first time period and at least one second time period of the frame when the second scan signal is applied; a storage capacitor having one electrode connected to the first node and other electrode connected to the second node; and a light emitting diode having an anode connected to the second node and a cathode connected to a second power line, wherein the number of the first and second scan signals applied to the pixel during the frame period is different from each other.

公开(公告)号：US10599264B2

公开(公告)日：2020-03-24

申请号：US15182415

申请日：2016-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Nam Park ,  Jeong Kyoo Kim ,  Kyung Youl Min ,  Young Uk Won

IPC: G06F3/041 ,  G06F3/044 ,  H02M3/07

Abstract: A touch screen panel includes a plurality of sensing electrodes arranged in a touch active area, a charge pump circuit for generating an output voltage based on an input voltage and at least one clock signal, a clock signal generator for generating the clock signal, and a touch driver for generating touch driving signals by using the output voltage and applying the touch driving signals to the sensing electrodes. In the touch screen panel, the clock signal and the touch driving signals are synchronized with each other.

公开(公告)号：US09733777B2

公开(公告)日：2017-08-15

申请号：US14855125

申请日：2015-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung Man Kim ,  Jeong Kyoo Kim

IPC: G09G5/00 ,  G06F3/044 ,  G06F3/041 ,  G06F3/0488

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/04883 ,  G06F2203/04112

Abstract: A touch sensing device includes: a touch panel on which a plurality of touch sensor electrodes are formed; a touch driver for supplying a touch driving signal to the touch sensor electrodes and receiving a touch detection signal generated by the touch driving signal; a touch controller for storing a history indicating that respective touch sensor electrodes are touched in the memory by using the touch detection signal; and a memory configured to communicate with the touch controller, wherein the touch controller controls the touch driver to read the history from the memory, determines electrodes for which a number of touch events is greater than a threshold number of touch events by using the history, and supply the touch driving signal to the determined electrodes.