Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.

Abstract: A fingerprint sensing device includes: a fingerprint sensor including scan lines and initialization lines extending in a first direction and arranged in a second direction, sensing lines extending in the second direction and arranged in the first direction, and sensing pixels connected to the scan lines, the initialization lines, and the sensing lines and disposed in a matrix configuration; a scan driver configured to apply an enable-level initialization signal to a-numbered sensing pixel rows while applying a disable-level initialization signal to b-numbered sensing pixel rows, and applying an enable-level scan signal to one sensing pixel row in the b-numbered sensing pixel rows; and a sensing driver configured to receive a sensing signal from the sensing pixel row to which the scan signal is applied through the sensing lines, wherein the a and b are positive numbers that are greater than 2.

Abstract: A sensor pixel includes: a reference capacitor including a first end connected to a driving signal line and a second end connected to a first node; a touch capacitor including one electrode connected to the first node, wherein capacitance of the touch capacitor changes by touching of an external object; a first transistor including a first end connected to an initialization voltage line, a second end connected to the first node, and a control end connected to an initialization line; a second transistor including a first end for receiving a common voltage, a second end for outputting a current generated based on the common voltage, and a control end connected to the first node; and a third transistor including a first end connected to the second end of the second transistor, a second end connected to a sensing line, and a control end connected to a scan line.

Abstract: A fingerprint sensor according to an exemplary embodiment of the present inventive concept includes a sensor substrate; a plurality of sensor pixels sensing a capacitance change corresponding to a touch of a user, wherein each of the sensor pixels includes a sensor electrode; and a sensor protection layer disposed on the sensor substrate and the plurality of sensor pixels, wherein the sensor protection layer may include a first region having a first permittivity and a second region having a second permittivity less than the first permittivity.

Abstract: A fingerprint sensor includes a sensor substrate. A plurality of sensor pixels is configured to sense a change in capacitance corresponding to a touch of a user. Each of the plurality of sensor pixels includes a sensor electrode. A sensor protective layer is configured to protect the sensor substrate and the plurality of sensor pixels. The sensor protective layer includes a first region disposed over the sensor electrode, and a second region. The first region has a first permittivity. The second region has a second permittivity lower than the first permittivity.

Abstract: A sensor pixel includes a sensor electrode, a first transistor including a gate electrode connected to the sensor electrode and which controls a current output provided to an output line, a second transistor connected to a first voltage line and a first transistor, a third transistor connected to the first transistor and the output line, and a compensator unit which compensates a threshold voltage of the first transistor.

Abstract: A security device includes a door handle unit disposed on a door body, a cover layer including a touch sensor and covering the door handle unit, a door locking unit which controls a locking of the door body. The touch sensor may include a plurality of sensor pixels, each including a sensor electrode which forms a second capacitor with a hand of a user when a touch occurs thereon by the user. The touch sensor may generate touch information based on a change in capacitance of the second capacitor corresponding to the touch.

Abstract: A display device for a vehicle may include a display panel configured to display an image and a touch sensor configured to sense a touch of a user and generate touch information about the touch. The touch sensor may be operated in a first mode or a second mode. The touch information may include first information about a fingerprint of the user, second information about a position of the touch, and third information about movement of the touch. When the touch of the user is sensed, the touch sensor may operate in the first mode and generate the first information. When the generation of the first information is completed, the touch sensor may operate in the second mode and generate the second information and the third information. The power and the ignition of the vehicle may be controlled using the touch information.

Abstract: A touch sensor including a substrate and a plurality of sensor pixels positioned on the substrate and connected to sensor scan lines and output lines. At least one of the sensor pixels is connected to an ith sensor scan line and a jth output line (where i is an integer of no less than 2 and j is a natural number) and includes a sensor electrode, a first transistor having a gate electrode connected to the sensor electrode to control a current output through the jth output line, a second transistor having a gate electrode connected to the ith sensor scan line and connected between a reference voltage line and the first transistor, and a capacitor electrode forming a first capacitor with the sensor electrode and connected to the ith sensor scan line.

Abstract: In a method of manufacturing an optical sheet, a stacked structure may be formed by alternatively and repeatedly stacking at least one transparent layer and at least one light scattering layer. A first cut face may be formed by partially cutting the stacked structure. A second cut face may be formed by partially cutting the stacked structure. The second cut face may be parallel to the first cut face.

Abstract: An organic light-emitting transistor (OLET) is provided. The OLET includes: a substrate; at least one first electrode on the substrate; a first semiconductor layer having a first conductive type on the first electrode; a second semiconductor layer having a second conductive type on the first semiconductor layer; a gate electrode disposed on a side surface of the second semiconductor layer; a gate insulating layer disposed between the gate electrode and the second semiconductor layer; an organic emission layer on the second semiconductor layer.

Abstract: In a method of manufacturing an optical sheet, a stacked structure may be formed by alternatively and repeatedly stacking at least one transparent layer and at least one light scattering layer. A first cut face may be formed by partially cutting the stacked structure. A second cut face may be formed by partially cutting the stacked structure. The second cut face may be parallel to the first cut face.

Abstract: There is provided a display device including a display panel including pixels, and a display panel driver configured to drive the display panel, wherein the display panel driver includes a timing controller configured to receive image signals and timing signals from the outside, to convert at least some of the image signals, and to output the converted image signals, wherein the image signals include first image signals corresponding to a first area in the display panel, wherein each of image signals corresponds to each of the pixels and includes a red signal, a green signal, and a blue signal, wherein the timing controller includes a signal receiver configured to receive the image signals and the timing signals, and a first converter configured to receive the first image signals from the signal receiver, to perform color weakness-compensating conversion on the first image signals, and to output the converted first image signals.

Abstract: A display device including a light emitting transistor, and a photonic crystal on the light emitting transistor.

Abstract: An organic light emitting transistor increases the amount of charge induced into an organic layer, and a display device includes the organic light emitting transistor. The organic light emitting transistor includes a substrate, an organic semiconductor layer positioned on the substrate, a source electrode and a drain electrode spaced apart from each other while contacting the organic semiconductor layer, a gate electrode insulated from the organic semiconductor layer, the source electrode and the drain electrode and positioned to overlap the organic semiconductor layer, and an auxiliary electrode overlapping the source electrode or the drain electrode.

Abstract: A display panel includes a first substrate including a transistor; a pixel electrode electrically connected to the transistor; a common electrode opposing the pixel electrode; an emission layer between the pixel electrode and the common electrode, the emission layer emitting light; a second substrate opposing the first substrate; a light control electrode on the second substrate; and a filling layer between the light control electrode and the common electrode, a refractive index of the filling layer being changed based on a voltage difference between the light control electrode and the common electrode.

Abstract: An organic light emitting device includes a substrate, a first electrode disposed on the substrate, a first organic layer pattern disposed on the first electrode, an auxiliary electrode pattern alternately disposed with the first organic layer pattern, and including an upper insulation layer, a lower insulation layer, and an auxiliary electrode disposed therebetween, a light emitting layer disposed on the first organic layer pattern and the auxiliary electrode pattern, a second organic layer disposed on the light emitting layer and a second electrode disposed on the second organic layer.

Abstract: A flexible display device includes a flexible display panel, a plurality of supports on a first surface of the flexible display panel, the plurality of supports being spaced apart from each other, and an actuator on the first surface of the flexible display panel, the actuator being between the supports. The actuator includes an electroactive polymer layer, and a first electrode layer and a second electrode layer that are respectively arranged on an upper surface and a lower surface of the electroactive polymer layer, and the actuator having a property such that when a voltage is applied to the first electrode layer and the second electrode layer, an area of the electroactive polymer layer is changed.

Abstract: An organic light-emitting transistor (OLET) is provided. The OLET includes: a substrate; at least one first electrode on the substrate; a first semiconductor layer having a first conductive type on the first electrode; a second semiconductor layer having a second conductive type on the first semiconductor layer; a gate electrode disposed on a side surface of the second semiconductor layer; a gate insulating layer disposed between the gate electrode and the second semiconductor layer; an organic emission layer on the second semiconductor layer.

Abstract: A mobile terminal including a communication unit configured to communicate with at least one other terminal; a memory configured to store at least first and second operating systems including at least first and second modes, respectively; and a controller configured to execute the first and second operating systems, to simultaneously display first and second information screens on a display unit of the mobile terminal corresponding to the first and second modes, to receive a sharing signal requesting information from one of the first and second information screens be shared with the other of the first and second information screens, and to selectively share the requested information between the first and second information screens based on a predetermined criterion.