Abstract: A stylus pen, an apparatus for receiving a signal from the stylus pen, and a control method are provided. The stylus pen includes a conductive tip disposed at a first end of the stylus pen. The stylus pen also includes a conductive tail disposed at a second end of the stylus pen. The stylus pen further includes a resonant circuit unit electrically connected to the conductive tip and the conductive tail. The resonant circuit is configured to generate a first response signal having a first resonant frequency corresponding to a signal entering the conductive tip from the electronic apparatus, to output the first response signal through the conductive tip, to generate a second response signal having a second resonant frequency corresponding to a signal entering the conductive tail from the electronic apparatus, and to output the second response signal through the conductive tail.

Abstract: A touch sensing device determines a contact location of a pen by using a first electrode signal generated from a first electrode of the pen, determines additional information related to the pen by using a second electrode signal generated from a second electrode of the pen, and can determine tilt information of the pen and/or rotation information of the pen by using a profile of the first electrode signal and a profile of the second electrode signal.

Abstract: A gate driving circuit including a controller for providing a first carry signal to a control node, a first pull-up portion for outputting a first clock signal as a first gate signal in accordance with a signal provided to the control node, and a second pull-up portion for outputting a second clock signal with a phase that is different from the first clock signal as a second gate signal in accordance with the signal provided to the control node.

Abstract: A display device includes: a plurality of pixels; a plurality of gate lines connected to the plurality of pixels; an output terminal connected to a gate line of the gate lines; a first transistor connected to a first node, a first clock signal input terminal and the output terminal; a second transistor connected to a second clock signal input terminal, a low-level power voltage and the output terminal; a third transistor connected to a second node, the low-level power voltage and the first node; a fourth transistor connected to a first forward input terminal, the low-level power voltage and the second node; and a fifth transistor connected to a first backward input terminal, the low-level power voltage and the second node.

Abstract: A stylus pen, an apparatus for receiving a signal from the stylus pen, and a control method are provided. The stylus pen includes a conductive tip disposed at a first end of the stylus pen. The stylus pen also includes a conductive tail disposed at a second end of the stylus pen. The stylus pen further includes a resonant circuit unit electrically connected to the conductive tip and the conductive tail. The resonant circuit is configured to generate a first response signal having a first resonant frequency corresponding to a signal entering the conductive tip from the electronic apparatus, to output the first response signal through the conductive tip, to generate a second response signal having a second resonant frequency corresponding to a signal entering the conductive tail from the electronic apparatus, and to output the second response signal through the conductive tail.

Abstract: An input device and an electronic apparatus are provided. The input device includes a case, a user manipulator disposed on the case, and a circuit configured to generate different signals according to a position change of the user manipulator. The user manipulator includes a movable member configured to be movable on the case, a first electrode fixed within the case, and a second electrode disposed on the movable member so as to be opposite to the first electrode in which an opposed area of the second electrode opposing the first electrode is varied according to the movement of the movable member.

Abstract: An input device and an electronic apparatus for receiving a signal from the input device are provided. The input device includes a conductive tip configured to receive an electric field transmission signal generated from at least one electrode of the electronic apparatus, a circuit configured to generate an electric field response signal corresponding to the electric field transmission signal, a variable capacitor disposed between the conductive tip and the circuit and configured to vary the electric field response signal according to writing pressure applied to the conductive tip, and a case in which the circuit and the variable capacitor are disposed. The variable capacitor includes a first electrode and a second electrode coupled to the circuit, a conductive variable electrode disposed to face the first electrode, and a dielectric disposed between the first electrode and the conductive variable electrode. The first electrode and the second electrode are fixed to the case.

Abstract: An input device and method for control based on input device tilt is provided. The input device includes a conductive tip formed at one end of the input device, a resonant circuit unit configured to generate a response signal corresponding to a signal entering through the conductive tip and output the response signal through the conductive tip, and a connection part formed between the conductive tip and a body of the input device to enclose a periphery of the conductive tip so as to have a part of the conductive tip exposed from one end of the input device. The connection part includes a metal member having a larger cross-section area than a cross-section area of the conductive tip and which affects signal intensity in response to input device tilt as detected by a touch screen of an electronic device.

Abstract: A display device and method having a pattern are provided. The display device includes a plurality of color filters which correspond to one or more sub-pixels constituting a pixel of the display device; and a black matrix formed between the plurality of color filters, wherein the one or more sub-pixels include one or more position marks indicating an absolute position of each pixel of the display device and one or more error correction marks for correcting an error when the one or more position marks are detected.

Abstract: A robot cleaning device includes a debris detecting unit. The robot cleaning device includes a body, a driving unit to enable the body to travel, a drum brush unit provided at the body, to sweep up debris, using a brush and a rotating drum, a debris box to store the debris swept up by the drum brush unit, a debris detecting unit to detect whether debris has been introduced into the debris box through the drum brush unit during a cleaning operation, and a controller to determine whether debris is introduced into the debris box and whether debris has been accumulated in the debris box in a predetermined amount, based on introduction or non-introduction of debris detected by the debris detecting unit.

Abstract: A stylus pen and a touch panel are provided. The stylus pen includes: a conductive tip configured to receive an electric field transmission signal from at least one electrode of the touch panel; a circuit portion configured to generate an electric field receiving signal corresponding to the received electric field transmission signal; a variable capacitor between the conductive tip and the circuit portion, and configured to vary the electric field receiving signal depending on a writing pressure applied to the conductive tip; and a conductive body outside the variable capacitor and electrically connecting the conductive tip and the circuit portion.

Abstract: A display device includes: a plurality of pixels; a plurality of gate lines connected to the plurality of pixels; an output terminal connected to a gate line of the gate lines; a first transistor connected to a first node, a first clock signal input terminal and the output terminal; a second transistor connected to a second clock signal input terminal, a low-level power voltage and the output terminal; a third transistor connected to a second node, the low-level power voltage and the first node; a fourth transistor connected to a first forward input terminal, the low-level power voltage and the second node; and a fifth transistor connected to a first backward input terminal, the low-level power voltage and the second node.

Abstract: An optical input apparatus is provided. The optical input apparatus includes a body having an image sensor; a plurality of light sources provided in the body to emit light; and a controller configured to control emission of light by the plurality of light sources as a function of a pattern received by the image sensor, wherein the plurality of light sources selectively emit light according to a location of a local saturation of light received by the image sensor.

Abstract: A gate drive circuit in which multiple stages are connected together one after each other. An n-th stage includes a pull-up part, a carry part, a pull-down part, a switching part, a first maintaining part and a second maintaining part. The pull-up part outputs a high voltage of a first clock signal. The carry part outputs a high voltage of the first clock signal. The pull-down part pulls-down the n-th gate signal into a first low voltage. The switching part outputs a first signal synchronized with the first clock signal during an interval other than a high voltage output interval of the n-th carry signal. The first maintaining part maintains the n-th gate signal at the first low voltage in response to the first signal. The second maintaining part maintains the n-th gate signal at the first low voltage in response to a second signal.

Abstract: A gate driver includes a plurality of stages, wherein an n-th stage includes: a pull-up unit configured to output a high voltage of a clock signal as a high voltage of an n-th gate signal; a pull-down unit configured to decrease the high voltage of the n-th gate signal to a first low voltage; a discharging unit configured to discharge a voltage of the first node to a second low voltage lower than the first low voltage; a carry unit configured to output the high voltage of the clock signal as an n-th carry signal; an inverter unit configured to output a signal in synchronization with the clock signal; a first node storage unit configured to maintain the voltage of the first node at the second low voltage; and a second node storage unit configured to maintain the voltage of the second node at the first or second low voltage.

Abstract: An apparatus and methods for recognizing an image with an increased image recognition rate are provided. The apparatus includes a plurality of illuminators for illuminating a surface. The apparatus also includes an image sensor for outputting an image frame obtained by converting an optical image of the surface into an electrical signal. The surface is illuminated one of the plurality of illuminators. The apparatus further includes a switch for selecting any of the plurality of illuminators for illuminating the surface. The apparatus additionally includes a controller for receiving the image frame from the image sensor, determining whether the image frame has a region of reflected light, and controlling the switch to select another of the plurality of illuminators to illuminate the surface when the image frame has the region of reflected light.

Abstract: A gate driver includes a plurality of stages, wherein an n-th stage includes: a pull-up unit configured to output a high voltage of a clock signal as a high voltage of an n-th gate signal; a pull-down unit configured to decrease the high voltage of the n-th gate signal to a first low voltage; a discharging unit configured to discharge a voltage of the first node to a second low voltage lower than the first low voltage; a carry unit configured to output the high voltage of the clock signal as an n-th carry signal; an inverter unit configured to output a signal in synchronization with the clock signal; a first node storage unit configured to maintain the voltage of the first node at the second low voltage; and a second node storage unit configured to maintain the voltage of the second node at the first or second low voltage.

Abstract: An optical input apparatus is provided. The optical input apparatus includes a body having an image sensor; a plurality of light sources provided in the body to emit light; and a controller configured to control emission of light by the plurality of light sources as a function of a pattern received by the image sensor, wherein the plurality of light sources selectively emit light according to a location of a local saturation of light received by the image sensor.

Abstract: A display device and method having a pattern are provided. The display device includes a plurality of color filters which correspond to one or more sub-pixels constituting a pixel of the display device; and a black matrix formed between the plurality of color filters, wherein the one or more sub-pixels include one or more position marks indicating an absolute position of each pixel of the display device and one or more error correction marks for correcting an error when the one or more position marks are detected.

Abstract: A gate drive circuit in which multiple stages are connected together one after each other. An n-th stage includes a pull-up part, a carry part, a pull-down part, a switching part, a first maintaining part and a second maintaining part. The pull-up part outputs a high voltage of a first clock signal. The carry part outputs a high voltage of the first clock signal. The pull-down part pulls-down the n-th gate signal into a first low voltage. The switching part outputs a first signal synchronized with the first clock signal during an interval other than a high voltage output interval of the n-th carry signal. The first maintaining part maintains the n-th gate signal at the first low voltage in response to the first signal. The second maintaining part maintains the n-th gate signal at the first low voltage in response to a second signal.