Samsung Display Co., Ltd.

Myungho Lee

Hui Nam

Myoungseop Song

Taejin Kim

Jaehyung Cho

Geunjeong Park

Heesoon Jeong

Woomi Bae

Soowan Yoon

Sehyuk Park

Seung-Jun Lee

Hae-Kwan Seo

Jongsoo Kim

Sungyeon Cho

Hae-kwan Seo

Seongheon Cho

Ahyoung Son

Doyoub Kim

Wonsik Oh

Haekwan Seo

BonSeog Gu

A gate driver includes a plurality of stages, a memory and a selector. The plurality of stages provides a plurality of gate signals to a plurality of gate lines. The memory receives a gate input signal applied to at least one of the stages and outputs the gate input signal as a selection signal. The selector outputs a vertical start signal to a scan start point among the stages based on the selection signal.

Gate driver, display apparatus having the same and method of driving display panel using the same

A pixel of an organic light emitting display device and an organic light emitting display device having the same includes an organic light emitting diode, a first switching transistor configured to transfer a data signal, a storage capacitor configured to store the data signal, a driving transistor configured to generate a driving current of the organic light emitting diode, a first initialization transistor and a second initialization transistor configured to simultaneously provide an initialization signal to the organic light emitting diode and the driving transistor, a second switching transistor configured to be turned on in response to a second scan signal and transfer the data signal or the initialization signal, a first emission control transistor configured to transfer a high power voltage to the driving transistor, and a second emission control transistor configured to transfer the driving current to the organic light emitting diode.

Pixel of organic light emitting display device and organic light emitting display device having the same

A display device includes a display panel including a plurality of pixels, a first driving circuit configured to operate to display an image through the plurality of pixels, and a shutter panel including a plurality of shutter pixels and configured to be periodically refreshed. The first driving circuit is operated to display a second image corresponding to a second image signal through the display panel when a difference in brightness between a first image signal of a present frame and the second image signal of a previous frame is greater than a predetermined level and to display a first image corresponding to the first image signal through the display panel when the shutter panel is refreshed.

Display device having a shutter panel and method of operating the same

A quantum-nano light emitting diode (Q-NED) pixel includes a switching transistor configured to transfer a data voltage in response to a scan signal, a storage capacitor configured to store the data voltage transferred by the switching transistor, a driving transistor coupled to a first power supply voltage line, and configured to generate a driving current based on the data voltage stored in the storage capacitor, a plurality of Q-NEDs configured to emit light based on the driving current, the Q-NEDs having an ohmic contact resistance at anodes and cathodes of the Q-NEDs, a first sensing transistor configured to couple the Q-NEDs to a sensing line in response to a sensing signal when a sensing operation for sensing the ohmic contact resistance of the Q-NEDs is performed, and a second sensing transistor configured to decouple the Q-NEDs from a second power supply line in response to an inverted sensing signal.

Light emitting assembly and display device

A display device and a smart watch are disclosed. In one aspect, the display device includes a front display panel configured to display a front image in a front direction and having an edge at the perimeter that is curved. The display device also includes a side display panel that is curved and configured to display a side image in a side direction conforming to the edge of the front display panel. The display device further includes a driver circuit board connected to the front and side display panels and configured to respectively apply first and second signals, corresponding to image data, to the front and side display panels.

Display device and smart watch

A display device includes a housing, a flexible display panel, a light receiving sensor, and an area calculator. The flexible display panel is coupled to the housing and displays a reference image and an output image. The flexible display panel has an exposed area with a size that varies with movement of the flexible display panel in a first direction relative to the housing. The sensor senses the reference image and generates sensing data based on the reference image. The area calculator calculates the exposed area of the flexible display panel based on the sensing data.

Display device

A light emitting display device including: a display panel; a plurality of pixels included in the display panel, each of the plurality of pixels including a driving switching element connected to a first power line and a light emitting element connected to a second power line; a maximum voltage detection unit for detecting a voltage from each of the light emitting elements of each of the pixels and outputting a maximum voltage that has a highest voltage level among the detected voltages; and a power supply unit for correcting a first driving voltage based on the maximum voltage and applying the corrected first driving voltage to the first power line.

Light emitting display device

A display apparatus includes a display panel having a first connector, and a driving device having a second connector configured to electrically connect to the first connector, wherein the display panel includes a connection state confirmation unit configured to output a connection state signal including connection information between the first connector and the second connector, and wherein the driving device includes a first power supply configured to supply power to the display panel when the connection state signal includes the connection information that a connection state between the first connector and the second connector.

Display apparatus including a display panel and driving device and method of driving the same

A display device is disclosed. In one aspect, the display device includes a first pixel disposed in an odd numbered pixel column and in a first pixel row, a second pixel disposed in an even numbered pixel column and in the first pixel row and a data line disposed between the odd and even numbered pixel columns and configured to apply a plurality of data voltages to the first and second pixels. The display device also includes a first odd number scan line configured to transmit a first odd number scan signal to the first pixel during a first data writing period, a first even number scan line configured to transmit a first even number scan signal to the second pixel during a second data writing period, and a second scan line configured to transmit a second scan signal to the first and second pixels during an initialization period.

Display device including two scan lines for same pixel

A display apparatus includes a display apparatus includes a display panel including a curved display area, and an optical unit including a liquid crystal layer on the curved display area, and configured to adjust a direction of light emitted from the display panel.

Display apparatus

A flexible printed circuit board includes a base substrate, a first pad part on the base substrate, a second pad part on the base substrate, and a line part on the base substrate, the line part electrically connecting the first pad part and the second pad part. The base substrate includes a first body part including the first pad part thereon and having a curved edge, a second body part including the second pad part thereon, and a connection part between the first pad part and the second pad part and having a width decreasing as a distance from the first body part increases and a distance from the second body part decreases.

Flexible printed circuit board and display device having the same

A display device includes a display panel including a display area for displaying an image, and a non-display area outside of the display area and including a pad area, a pad in the pad area, and including a plurality of pad lines extending from wire lines drawn from the display area toward the non-display area, a driver including a plurality of terminal lines respectively electrically connected to the pad lines, the driver being configured to transmit a signal to, and to receive a signal from, an external board, and a conductive layer between the pad and the driver for electrically connecting the pad and the driver, wherein each of the pad lines crosses and contacts at least two points of a corresponding one of the terminal lines.

A display device includes a display panel, a module frame having first and second contact pins, and a Printed Circuit Board (PCB) having first and second pads connectable with the first and second contact pins of the module frame, respectively, in a contacting state and disconnectable therewith in a non-contacting state. The first and second contact pins are electrically connected to each other. The PCB includes a circuit block in a non-operational state when the first and second pads are in the non-contacting state with the first and second contact pins of the module frame, respectively.

Growing community of inventors

Anyang-si, South Korea

Myungho Lee