Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Hyo-chul Lee

In Soo Wang

Ji-Won Kim

Hongbo Kim

Yoonjung Chai

Seung-Hee Lee

Cholho Kim

Seungin Baek

Hyeon-Do Park

Jeonghun Go

Hyun-Seok Hong

Hyunseok Hong

Younyee Kang

A circuit board includes a first body part, a second body part and a connection part. The first body part includes a first contact surface and has a multi-layered structure. The second body part includes a second contact surface, has a multi-layered structure, and includes a first signal line spaced apart from the second contact surface. The connection part includes a third contact surface between the first contact surface and the second contact surface, and connects the first body part and the second body part to each other.

Circuit board and a display device including the same

A display device includes a display area including gate lines; a plurality of gate drivers disposed in a non-display area that is adjacent to the display area and connected to the gate lines; and a driving power transmitting line disposed in the non-display area and providing a driving power to the gate drivers. The driving power transmitting line includes a first driving power transmitting line and a second driving power transmitting line overlapping each other with an insulating layer disposed therebetween, the first driving power transmitting line and the second driving power transmitting line are connected with each other through a plurality of contact holes formed in the insulating layer, and the contact holes are disposed in a plurality of regions respectively overlapping the gate drivers in a direction parallel to an extending direction of the gate lines.

Display device

A circuit board for a display device includes: a signal line to transmit signal, a first metallic layer overlapping the signal line, a first conductive layer spaced apart from the first metallic layer, a base layer insulating the signal line from the first metallic layer and from the first conductive layer, and a first capacitor including a first terminal electrically coupled to the first metallic layer and a second terminal electrically coupled to the first conductive layer.

Circuit board and display device including the same

A display device includes a display unit displaying an image, a fingerprint sensing unit disposed on one surface of the display unit and including fingerprint sensing pixels to sense a fingerprint, and a readout circuit providing a selection signal to the fingerprint sensing unit to select a predetermined amount of fingerprint sensing pixels from the fingerprint sensing pixels as a sensing area and receiving a fingerprint sensing signal from the sensing area. The readout circuit accumulates the fingerprint sensing signal provided from the fingerprint sensing pixels in the sensing area during a test mode and calculates a compensation value based on a difference between the accumulated fingerprint sensing signal and a reference value.

Display device having fingerprint sensing function and method of operating the same

A display device includes: a display panel; an input sensor disposed on the display panel; a flexible circuit board connected to the display panel and the input sensor; a first differential signal line and a second differential signal line, which are disposed on the flexible circuit board and connected to the display panel; and a transmission line and a receiving line, which are disposed on the flexible circuit board and connected to the input sensor. In a plan view, the receiving line is disposed between the first differential signal line and the second differential signal line.

A pixel of an organic light emitting diode display device includes a switching transistor which transfers a data voltage in response to a scan voltage applied thereto through a scan line, a storage capacitor which stores the data voltage transferred by the switching transistor, a driving transistor which generates a driving current based on the data voltage stored in the storage capacitor, an organic light emitting diode which emits light based on the driving current, and an anode discharging capacitor connected between the scan line and an anode of the organic light emitting diode.

Pixel of an organic light emitting diode display device, and organic light emitting diode display device

A display device includes a display panel including a data line and a unit pixel including sub pixels having different colors from each other, where the sub pixels of the unit pixel are connected to a same data line, an image data analyzer which determines whether image data of a horizontal line satisfies a condition of a charging inferiority pattern, and an output buffering part including a first amplifier which amplifies and outputs a data voltage of a positive polarity and a second amplifier which amplifies and outputs a data voltage of a negative polarity, where a low power voltage terminal of the first amplifier and a high power voltage terminal of the second amplifier receive power voltages having different levels from each other, respectively, when the image data of the horizontal line satisfies the condition of the charging inferiority pattern.

Display device and method of driving the same

A scan driver includes: a blocking circuit configured to receive a scan control signal and to block the scan control signal lower than a predetermined first reference voltage and higher than a predetermined second reference voltage, wherein the second reference voltage is higher than the first reference voltage; and a plurality of stages configured to output scan signals in response to the scan control signal, wherein the blocking circuit includes: a first block circuit configured to block the scan control signal lower than the first reference voltage; and a second block circuit configured to block the scan control signal higher than the second reference voltage.

Scan driver and display device having the same

A display device includes a display panel having a first area and a second area that is adjacent to the first area in a first direction, a first printed circuit board including a first body part facing the first area in a second direction that is different from the first direction and a first extension part extending from the first body part, a second printed circuit board including a second body part facing the second area in the second direction and a second extension part extending from the second body part and facing the first extension part in the second direction, and a connecting flexible circuit board having one end connected to the first extension part and the other end connected to the second extension part.

Display device and method for manufacturing the same

Provided is a printed circuit board and a display device having the same. The printed circuit board includes a base substrate including a first outline that extends in a first direction and a second outline facing the first outline, the base substrate having a first area, a second area, and a third area successively defined thereon in the first direction and a pad part disposed on the second area. A central outline of the second outline which overlaps the second area has a stepped shape that gradually decreases in distance between the central outline and the first outline from a first point of the central outline contacting the first area to a second point of the central outline contacting the third area.

Printed circuit board and display device having the same

A display apparatus includes a printed circuit board (PCB). A power management integrated circuit (PMIC) is mounted on the PCB and is configured to generate first to fourth gate clock signals and first to fourth inversion gate clock signals. A phase of the first gate clock signal partially overlaps a phase of the second to fourth gate clock signal. Each of the first to fourth inversion gate clock signals has a phase opposite to that of a respective one of the first to fourth gate clock signals. A gate driver generates a plurality of gate signals based on the first to fourth gate clock signals and the first to fourth inversion gate clock signals and applies the plurality of gate signals to a plurality of gate lines. A display panel is connected to the plurality of gate lines.

Growing community of inventors

Hwaseong-si, South Korea

Hyo-chul Lee