Samsung Display Co., Ltd.

Daeyoun Cho

Jongwoo Park

Youngtae Choi

Jiho Moon

Hyojung Kim

Juhee Lee

Taeyoung Kim

Cheolkyu Kim

Youngsun Hwang

Yoonho Kim

Junehwan Kim

Heejin Kim

Tae Young Kim

Hyunho Kim

Ja Eun Lee

Ju Hee Lee

Jongwon Lee

Younjae Jung

Jungmin Park

Sora Bak

Youngjoo Noh

Eugene Kim

Yoonsuk Choi

Sangkil Kim

Young-joo Noh

An electronic device includes a display panel having a display region and a non-display region adjacent to the display region, and a driving circuit electrically connected to the display panel and configured to drive the display panel. The display panel includes a pixel disposed in the display region and a test circuit disposed in the non-display region. The driving circuit includes a circuit element configured to adjust an operation point of a test transistor included in the test circuit according to a voltage applied to the test circuit.

Electronic device

A display device, includes: a display panel; and a driving unit configured to receive image data, analyze the image data, and determine shapes of a plurality of pixel units making up the image, wherein the plurality of pixel units include a first pixel unit including a plurality of first sub-pixels or a second pixel unit including a plurality of second sub-pixels and having a shape different from a shape of the first pixel unit, and wherein the first sub-pixels and the second sub-pixels include a 1-1st color sub-pixel configured to emit a first color, a 1-2nd color sub-pixel configured to emit the first color, a second color sub-pixel configured to emit a second color, the second color being different from the first color, and a third color sub-pixel configured to emit a third color, the third color being different from the first color and the second color.

Display device and driving method of display device

A pixel includes: a first driving transistor and a second driving transistor; a first select transistor connected between a gate of the first driving transistor and a gate node; and a second select transistor connected between a gate of the second driving transistor and the gate node.

Pixel

A display apparatus includes a first substrate including a polymer resin, a protective layer on the first substrate, the protective layer including at least one selected from SiOCH, SiOC, SiOF, aromatic amine, diazonium tetrafluoroborate, and an aromatic diazonium compound, and a buffer layer on the protective layer, the buffer layer including a material different from a material included in the protective layer.

Display apparatus and method of manufacturing the same

A test device includes: a plurality of signal test pads electrically connected to pads of an input sensing unit; a power test pad electrically connected to a power pattern of a display unit; a test circuit configured to apply a test signal to the signal test pads; a voltage generator configured to generate a sensing power voltage; and a ripple controller configured to change a voltage level of the sensing power voltage to apply the sensing power voltage to the power test pad.

Electronic panel, electronic panel test device, and electronic panel test method

A display apparatus includes a display panel, a first emission driver, a second emission driver, and an emission driver controller. The first and second emission drivers are on different sides of the display panel, and each applies an emission signal to the display panel. The emission driver controller selectively drives the first emission driver and the second emission driver based on deterioration stress of the first and second emission drivers.

Display apparatus, method of operating a display apparatus and non-transitory computer-readable medium

A display device includes a substrate including a display area and a non-display area adjacent to the display area, a pixel disposed in the display area, a first voltage line disposed in the non-display area and supplying a first power supply voltage to the pixel, a second voltage line disposed in the non-display area and supplying a second power supply voltage to the pixel, the second voltage line being apart from the first voltage line, and a metallic pattern disposed between the first voltage line and the second voltage line. A shortest distance between the first voltage line and the second voltage line is greater than a width of the metallic pattern.

Display device

A display device includes a light emitting diode including a first electrode and a second electrode, a first transistor connected between the first voltage line and the first electrode of the light emitting diode, a sixth transistor connected between the drain electrode of the first transistor and the first electrode of the light emitting diode, and a seventh transistor connected between the second voltage line and the first electrode of the light emitting diode and including a gate electrode for receiving an initialization scan signal, wherein an active period of the scan signal and an active period of the initialization scan signal are non-overlapping with each other and the active period of the initialization scan signal is longer than the active period of the scan signal.

A display device includes a base layer, first pixels, second pixels, a power supply line (PSL), a power supply voltage supply circuit (PSVSC), and a feedback wire (FBW). The base layer includes a display area (DA) and a non-display area (NDA) adjacent to the DA. The DA includes a first pixel area (PA) including first pixels and a second PA including second pixels. The second PA protrudes from the first PA. The PSL extends in at least a first direction in the DA. The PSL receives a first power supply voltage (PSV) through a first end of the PSL, and supplies the first PSV to the first and second pixels. The PSVSC supplies the first PSV to the PSL through the first end. The FBW is electrically connected to a second end of the PSL disposed in the second PA. The FBW feeds back the first PSV to the PSVSC.

A lighting test device for a display panel includes: a connection part including a first connection test pad, a second connection test pad and a plurality of test pads, which are arranged at an end of the connection part, where the connection part is allowed to be connected to the display panel through the first connection test pad, the second connection test pad and the test pads; and a test circuit which outputs a connection test signal to the first connection test pad, receives a feedback signal through the second connection test pad, and adjusts voltage levels of test signals to be applied to the test pads based on the connection test signal and the feedback signal.

Lighting test device, lighting test method, and lighting test system

A display apparatus includes a substrate, a display area including a plurality of pixels, a non-display area outside the display area, a first dam surrounding the display area, a second dam surrounding the first dam, a third dam between the display area and the first dam. The third dam including a first insulating layer and a second insulating layer on the first insulating layer, and a thin film encapsulation layer covering the display area, the thin film encapsulation layer including at least one inorganic encapsulation layer and at least one organic encapsulation layer. The third dam includes a first region in which the second insulating layer is spaced along a direction in which the first insulating layer extends, and a second region in which the second insulating layer is continuously present along the direction in which the first insulating layer extends, the second region not overlapping the first region.

Display apparatus

An organic light emitting display (OLED) device includes a substrate having a display region including a plurality of sub-pixel regions, a respective driving transistor and a respective switching transistor on the substrate in each of the sub-pixel regions, an insulation layer structure on the substrate, the insulation layer structure having a respective trench surrounding the driving transistor in each of the sub-pixel regions, and a respective sub-pixel structure on the insulation layer structure in each of the sub-pixel regions.

Light emitting display device

A display panel includes a base layer, a circuit layer, and a pixel layer. The base layer includes a plurality of light emitting areas, and a plurality of transmitting areas to transmit light incident thereto. The circuit layer includes a plurality of switching devices disposed on the light emitting areas, and a plurality of photosensors disposed on the transmitting areas. The pixel layer includes a light emitting element to emit light based on reception of a current from at least one of the plurality of switching devices. The light emitting element overlaps with one of the plurality of light emitting areas. At least one of the plurality of photosensors is configured to receive a portion of external light reflected from an external object after transmission of the external light through at least one of the plurality of transmitting areas.

Display panel and display device including the same

A display panel includes a base layer, a circuit layer, and a pixel layer. The base layer includes a plurality of light emitting areas, and a plurality of transmitting areas to transmit light incident thereto. The circuit layer includes a plurality of switching devices disposed on the light emitting areas, and a plurality of photosensors disposed on the transmitting areas. The pixel layer includes a light emitting element to emit light based on reception of a current from at least one of the plurality of switching devices. The light emitting element overlaps with one of the plurality of light emitting areas. At least one of the plurality of phototosensors is configured to receive a portion of external light reflected from an external object after transmission of the external light through at least one of the plurality of transmitting areas.

Growing community of inventors

Yongin-si, South Korea

Daeyoun Cho