Samsung Display Co., Ltd.

Sang Wook Yoo

Jong Tae Kim

Jeong Heon Lee

Young Sik Kim

Hee Woong Park

Choon Hyop Lee

Jung Mok Park

Byeong Kyu Jeon

Si Young Choi

Tae Joon Kim

Chang Bum Kim

Kee Yong Kim

Young Seok Yoo

Ga Yeon Yun

Jung Hun Sin

A display device includes: a display panel; a fingerprint sensor which is disposed on a surface of the display panel and senses a user's fingerprint by emitting ultrasonic waves; and a first vibrator which is disposed on a surface of the fingerprint sensor and generates vibrations based on driving voltages applied thereto.

Display device and method of driving the same

A touch sensing device includes a base layer, a touch electrode layer, a first reinforcing member, and a touch circuit board. The base layer includes a main area and a protruding area protruding from the main area in a first direction. The touch electrode layer is disposed on a surface of the base layer. The first reinforcing member is disposed on a surface of the protruding area. The touch circuit board is electrically connected to the touch electrode layer. The protruding area includes a bending area and a pad area. The bending area is bent downward. The pad area extends from the bending area in the first direction and overlaps the base layer in a second direction intersecting the first direction in a bent state of the bending area. The touch circuit board is attached to the pad area.

Touch sensing device and display device including the same

Provided is a fingerprint authentication device comprising a biometric sensor that senses biometric information to generate a sensing signal; an image processor that extracts a calibration function based on calibration data and generates a fingerprint image based on the calibration function and the sensing signal; and an authenticator that performs fingerprint authentication by comparing the fingerprint image and registered fingerprint information. The calibration data includes information on a calibration coefficient of the calibration function.

Fingerprint authentication device and calibration device and method thereof

According to one aspect of the invention, a circuit board for a display device includes: a first layer; a first lead line disposed on the first layer; and a sound generator disposed on the first layer, and the sound generator including: a first electrode to receive a first driving voltage; a second electrode to receive a second driving voltage; and a second layer disposed between the first electrode and the second electrode to contract or expand according to the first driving voltage and the second driving voltage; and a first solder to electrically communicate the first lead line and the first electrode.

Circuit board having sound generator and display device including the same

A display device includes: a display panel including a substrate and a pixel array layer disposed on a surface of the substrate; a sound generation device disposed on an opposing surface opposite to the surface of the substrate; and a set cover including a plurality of ribs which overlap the sound generation device in a thickness direction of the display panel. The sound generation device vibrates the display panel to output a sound.

Display device

A display device including a display panel having a display area and a non-display area disposed around the display area; a touch sensor disposed on the display panel, the touch sensor comprising a sensing area corresponding to the display area, a peripheral area corresponding to the non-display area, and a pad unit disposed on a part of the peripheral area; a flexible printed circuit board disposed on the touch sensor in the peripheral area and connected to the pad unit; a polarization layer disposed on the touch sensor and a part of the flexible printed circuit board; and a printed layer disposed on at least an area between the flexible printed circuit board and the sensing area.

A display device may include: a display panel; a vibration generating device disposed on one surface of the display panel, the vibration generating device configured to generate vibration to be transmitted to the display panel; a panel bottom member disposed between the display panel and the vibration generating device; and a vibration transmitting member disposed in the panel bottom member to at least partially overlap with the vibration generating device in plan view.

A display device includes: a display panel; a sound generation device disposed on one surface of the display panel, where the sound generation device vibrates the display panel based on sound driving voltages to output sound; and a sound driving circuit which generates the sound driving voltages, which is compensated based on an ambient temperature of the sound generation, based on sound data and supplies the sound driving voltages to the sound generation device.

Growing community of inventors

Hwaseong-si, South Korea

Sang Wook Yoo