Abstract: The present invention provides an inverter and a bootstrap inverter with improved output characteristics. The inverter comprises a first and second load transistors, a driving transistor, and a control transistor. The control transistor, when turned on, effectively grounds the source of the first load transistor, ensuring a 0V output. The bootstrap inverter further includes a bootstrap transistor and a capacitor. This configuration solves the problems of output voltage being lower than VDD for logic ‘1’ and not completely 0V for logic ‘0’, achieving ideal output levels.

Abstract: The present invention relates to an active-matrix organic light-emitting diode (AMOLED) compensation pixel circuit. More specifically, it concerns an AMOLED compensation pixel circuit capable of compensating for luminance variations caused not only by area changes due to substrate stretching but also by voltage drops resulting from increased resistance as wiring length increases. According to the present invention, a pixel circuit is configured to include an OLED element, three switching transistors, one driving transistor, and two capacitors. This configuration allows the voltage applied to the gate of the driving transistor to change in proportion to the area of the display screen, thereby increasing the current flowing through the OLED. This enables compensation for luminance reduction while also automatically compensating for luminance reduction caused by power supply voltage drops.

Abstract: A CMOS inverter circuit includes a first and second PMOS transistor connected in series to a power supply voltage (VDD) and a first NMOS transistor connected in series with the second PMOS transistor and to ground (GND). All transistors receive the same input signal. This configuration enables normal logic gate operation even when the P-channel characteristics of the PMOS transistors are shifted. The channel widths of the first and second PMOS transistors can be varied to adjust circuit performance.

Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.

Abstract: A display apparatus capable of image scanning and a driving method thereof are provided. A display apparatus capable of image scanning includes a plurality of contact sensors each of which includes an N-type transistor, a P-type transistor connected to a gate electrode of the N-type transistor, and a sensing capacitor, the plurality of contact sensors being arranged so as not to cover a unit color pixel area of a color filter layer; a first scan line to which a selective signal is periodically applied, the first scan line being connected to a source electrode of the N-type transistor; a second scan line to which a selective signal is applied followed by the first scan line, the second scan line being connected to the gate electrode and source electrode of the P-type transistor; and a readout line connected to the drain electrode of the N-type transistor.

Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.

Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.

Abstract: According to an embodiment, the present invention provides a display apparatus capable of image scanning and a driving method thereof. According to an embodiment, the present invention provides a display apparatus capable of image scanning, including a plurality of contact sensors, each of them being arranged so as not to overlap a unit color pixel of a color filter layer and including only one sensing transistor generating a leakage current corresponding to the strength of light reflected from an outside object, a scan line applied with a selective signal selecting at least a part of the contact sensors among the plurality of contact sensors, and a readout line receiving an output signal corresponding to the amount of electric charge charged in a parasitic capacitance of the sensing transistor by the leakage current from a contact sensor applied with the selective signal.

Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.

Abstract: According to an embodiment of the present invention, a display apparatus capable of image scanning and a method for driving the same are provided. According to an embodiment of the present invention, a display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel.

Abstract: Disclosed is a fingerprint-sensing display capable of sensing a fingerprint on a display screen. The display apparatus having an image scanning function includes an optical amplification cover, one side of which forms a display surface, including a transparent optical amplification layer configured to amplify an optical pattern generated by a fingerprint of a user in contact with the display surface and a cover window for reinforcement, a thin film transistor (TFT) array configured to drive a plurality of pixels forming an image, and an optical sensor array disposed between the optical amplification cover and the TFT array and configured to sense the optical pattern amplified by the optical amplification cover.

Abstract: According to an embodiment of the present invention, a display apparatus capable of image scanning and a method for driving the same are provided. According to an embodiment of the present invention, a display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel.

Abstract: According to an embodiment, the present invention provides a display apparatus capable of image scanning and a driving method thereof. According to an embodiment, the present invention provides a display apparatus capable of image scanning, including a plurality of contact sensors, each of them being arranged so as not to overlap a unit color pixel of a color filter layer and including only one sensing transistor generating a leakage current corresponding to the strength of light reflected from an outside object, a scan line applied with a selective signal selecting at least a part of the contact sensors among the plurality of contact sensors, and a readout line receiving an output signal corresponding to the amount of electric charge charged in a parasitic capacitance of the sensing transistor by the leakage current from a contact sensor applied with the selective signal.

Abstract: According to an embodiment, a display apparatus capable of image scanning and a driving method thereof is provided. According to an embodiment, a display apparatus capable of image scanning, which includes a plurality of contact sensors each of which includes an N-type transistor, a P-type transistor connected to a gate electrode of the N-type transistor, and a sensing capacitor one end of which is connected to a drain electrode of the N-type transistor, the plurality of contact sensors being arranged so as not to cover a unit color pixel area of a color filter layer; a first scan line to which a selective signal is periodically applied, the first scan line being connected to a source electrode of the N-type transistor; a second scan line to which a selective signal is applied followed by the first scan line, the second scan line being connected to the gate electrode and source electrode of the P-type transistor; and a readout line connected to the drain electrode of the N-type transistor.

Abstract: Provided are a photo sensor, a display device including the same, and a driving method thereof. The photo sensor includes: an amplifying element including an input terminal coupled to a scan line for receiving a scan signal, an output terminal configured to output a sensing signal, and a control terminal connected to a first node; a sensing capacitor connected with the first node; a photosensitive sensing element including a control terminal connected with a terminal of a first control signal, an output terminal connected with the first node, and an input terminal; and a reset element connected with the output terminal of the amplifying element and resetting the output terminal of the amplifying element to second voltage according to a reset control signal.

Abstract: The present invention relates to an electric-field drive display device. According to one embodiment of the present invention, the electric-field drive display device comprises: a first substrate; a first electrode which is formed on the first substrate; a second electrode which is formed on the first substrate and is disposed in parallel with the first electrode; a drive partition wall which is formed on the first electrode and the second electrode and has a plurality of opening and closing holes; and a plurality of drive bodies which are disposed inside each of the opening and closing holes. Consequently, the electric-field drive display device according to one embodiment of the present invention can adjust the amount of light transmitted and so display the desired image by adjusting the positions of the drive bodies in the horizontal direction through the use of electrical force.

Abstract: Provided are a photo sensor, a display device including the same, and a driving method thereof The photo sensor includes: an amplifying element including an input terminal coupled to a scan line for receiving a scan signal, an output terminal configured to output a sensing signal, and a control terminal connected to a first node; a sensing capacitor connected with the first node; a photosensitive sensing element including a control terminal connected with a terminal of a first control signal, an output terminal connected with the first node, and an input terminal; and a reset element connected with the output terminal of the amplifying element and resetting the output terminal of the amplifying element to second voltage according to a reset control signal.

Abstract: The present invention relates to an electric-field drive display device. According to one embodiment of the present invention, the electric-field drive display device comprises: a first substrate; a first electrode which is formed on the first substrate; a second electrode which is formed on the first substrate and is disposed in parallel with the first electrode; a drive partition wall which is formed on the first electrode and the second electrode and has a plurality of opening and closing holes; and a plurality of drive bodies which are disposed inside each of the opening and closing holes. Consequently, the electric-field drive display device according to one embodiment of the present invention can adjust the amount of light transmitted and so display the desired image by adjusting the positions of the drive bodies in the horizontal direction through the use of electrical force.

Abstract: A display device and a driving method thereof include a plurality of light emitting elements arranged in a matrix form, for emitting different colors of light from each other, a plurality of driving transistors which supply a driving current to the light emitting elements, and photosensors which sense the amount of light emitted from the light emitting elements and produce a sense signal according to the sensed amount of light, the photosensors being positioned at a space between the plurality of light emitting elements.

Abstract: A source electrode and a metal pattern for a storage capacitor are formed on an insulating substrate, a silicon layer having a doped source region and a doped drain region is formed on the substrate and the source and the drain regions directly contact to the source electrode and the metal pattern. A gate insulating film is formed thereon, and a storage electrode is formed on the gate insulating film opposite the metal pattern. A passivation film covering the storage electrode is formed and the pixel electrode is formed thereon. The pixel electrode is directly connected to the drain region or to the metal pattern.