Abstract: An image display device comprises a light emitting element; a driver which has a control terminal, a first terminal and a second terminal, and which controls the current flowing between the first terminal and the second terminal by the voltage between the control terminal and the first terminal, to control the light emission of the light emitting element; a first capacitor having a first electrode and a second electrode, the first electrode being connected directly or indirectly to the control terminal of the driver, the second electrode being connected directly or indirectly to a signal line supplying the potential corresponding to an image data; and a second capacitor connected electrically in series to the first capacitor during a writing period while the image data is written to the first capacitor through the signal line.

Abstract: In a method of driving a light source of a light source module including a plurality of driving blocks, an image signal is analyzed and a target luminance corresponding to each of the driving blocks is determined. A dimming level of each of the driving blocks is determined by using the target luminance. A driving signal is generated, and the driving signal has a pulse width based on the dimming level and a variable frequency in accordance with a processing mode of the image signal. The driving block is driven by using the driving signal.

Abstract: A mobile terminal having a touch screen is disclosed. The terminal includes a touch input unit and a control unit. The touch input unit provides a touch input area for inputting data information, a display area for displaying the input data information and a control region for inputting control commands, wherein the touch input area overlaps with the display area and/or the control region. The control unit controls the input and display of the information through the touch input and display area according to the control commands input through the control region.

Abstract: A locating method for an optical touch device to calculate a position of a light blocking object is provided. The optical touch device includes a number of image detecting components. Each of the image detecting components includes a number of pixels arranged in a straight line. In the locating method, the pixels of each of the image detecting components are at least divided into a first group and a second group. When the first group detects a dark point caused by the light blocking object, the position of the dark point is calculated using a first calculating method. When the second group detects the dark point, the position of the dark point is calculated using a second calculating method. The locating method can determine the position of the light blocking object accurately. An optical touch device that is suitable for using the locating method is also provided.

Abstract: A noise reducing device for a capacitive touch panel and a method of reducing noise for a capacitive touch panel are disclosed to solve problems related to noise generated by a conventional filter circuit and an integrating circuit or external noise. In the invention, at least one switch circuit is used so that the conventional filter circuit and integrating circuit used in the prior are omitted. Signals output from a current measurement circuit are transmitting to a control unit to calculate the location of a touch point, reducing any noise.

Abstract: In a variable size sensing system and a method for redefining the size of a sensing area thereof, the sensing system includes four elements, a mark and two image sensing devices. The four elements are consecutively connected and thereby forming a frame. Two of the four elements have variable lengths so as to adjust the size of the frame. The inner edge of the frame defines a sensing area of a parallelogram shape. The sensing system has a first and a second working mode. The sensing area has a first size and a second size when the sensing system is in the first working mode and the second working mode respectively, wherein the first size is predetermined and smaller than the second size. The mark is used to mark a fixed length. When the sensing system is changed from the first working mode to the second working mode, the mark sensed by the image sensing devices can be utilized to redefine the size of the sensing area in the sensing system.

Abstract: A stylus is provided with a finger engaging structure including a conductive portion for electrically contacting a finger of a user and a grasping portion for grasping the finger. The stylus has an electrically conductive stylus pad and a fingernail support element connected to the stylus pad and with a portion in contact with the fingernail of the user for positioning the stylus pad relative to the fingernail. A connection is provided from the fingernail engaging structure to the fingernail support element for electrical charge connection between the conductive portion and the stylus pad and for connecting the fingernail support to the finger engaging structure.

Abstract: A digital pen comprising: an electric circuit, an acoustic transmitter, detached from the electric circuit, and configured to transmit acoustic signals, and a resilient holder, configured to mechanically press the electric circuit into electrical contact with the transmitter, so as to electrically connect the electric circuit and the transmitter.

Abstract: The present invention provides a display apparatus, includes: a pixel array section including a plurality of scanning lines disposed in rows, a plurality of signal lines disposed in columns, and a plurality of pixels arranged in rows and columns at places at which the scanning lines and the signal lines intersect with each other; and a driving section configured to drive the pixels through the scanning lines and the signal lines; the driving section carrying out block-sequential driving wherein the scanning lines are grouped for each predetermined number to form blocks and the pixels disposed in rows and columns are sequentially driven in a unit of a block and line-sequential driving wherein the scanning lines are scanned in each of the blocks to sequentially drive the pixels in a unit of a row.

Abstract: An electrophoretic display device includes a common electrode, pixel electrodes, and a disperse system of electrophoretic particles. A transistor supplies one of the pixel electrodes with a first potential or a second potential higher than the first potential. During a first period, a control portion supplies a third potential to the gate electrode to turn on the transistor, supplies the first potential to a signal line or the common electrode, and supplies the second potential to the other line. During a second period, the control portion supplies a fourth potential higher than the third potential to the gate electrode to turn off the transistor, and supplies the first potential to both the signal line and the common electrode so that the pixel electrode potential substantially reaches the common electrode potential. The third potential is lower than the second potential and the fourth potential is higher than the first potential.

Abstract: A touch detection apparatus is provided, in which a touch panel is implemented with four surrounding edges. Three of the edges are embedded with retro-reflection materials. Light sources and pinholes are deployed on both corners of the touch panel, allowing reflections from the three edges to be projected on light sensors through the pinhole. The images projected on the light sensors are analyzed to determine coordinates of one or more contact points on the touch panel.

Abstract: A position pointer is disclosed, including a housing, a substantially bar-like rod accommodated in the housing such that one end thereof projects to the outer side of the housing, and a variable capacitor having a capacitance value which varies in response to external force applied thereto through the rod. The variable capacitor includes a dielectric member having a first face portion and a second face portion opposite from the first face portion, a terminal member configured to engage with the first face portion of the dielectric member, an electrode section disposed in an opposing relationship to the second face portion of the dielectric member and including a conductive member having a contact area with the second face portion that varies in response to the external force, and an elastic member configured to bias the conductive member in a direction in which the conductive member is spaced away from the second face portion.

Abstract: A pixel includes an organic light emitting diode; a first transistor; a second transistor coupled to a data line and turned on when a scan signal is supplied to an ith scan line; a third transistor between the second transistor and a gate electrode of the first transistor and turned on when a scan signal is supplied to an i+1th scan line; a fourth transistor between the gate electrode of the first transistor and a reference power supply and turned on when the scan signal is supplied to the ith scan line; a fifth transistor between the organic light emitting diode and an initial power supply and turned on when a control signal is supplied; a first capacitor between the organic light emitting diode and a node between the second transistor and the third transistor; and a second capacitor between the node and the gate electrode of the first transistor.

Abstract: A display device includes a waveguide with a light propagating therein, and a panel including a first organic light-emitting device in a sub-pixel region and a second organic light-emitting device in a sensing region adjacent to the sub-pixel region, the first organic light-emitting device for displaying a data on the panel, and the second light-emitting device responsive to a scattering of the light from the waveguide for outputting a signal indicative of a contact on the waveguide.

Abstract: A liquid crystal display device and a driving method thereof capable of simplifying of a hardware construction of the liquid crystal display device driven by the impulsive driving method and minimizing capacitance of memory for storing data are provided.

Abstract: A scanning position of laser light applied to a projection plane is detected, and based on the detected scanning position, a synchronization signal is generated to designate a scan timing. A correction region detection portion detects whether or not a part corresponding to a prescribe region of an image on the projection plane is scanned by laser light, based on the generated synchronization signal. When the part corresponding to the prescribed region is scanned, a correction amount derivation portion corrects a gradation signal based on the difference between the detected quantity of laser light and a prescribed quantity of light to be output from the laser for displaying the image in the prescribed region.

Abstract: A driving circuit including a shift register is presented, as well as a display device incorporating the driving circuit. The shift register has multiple stages, at least of which includes a first output circuit that generates an output signal O(i) according to a potential at Node Q; a second output circuit that generates a carry signal Cr(i) according to the potential at the Node Q; a controller circuit that controls the potential at the Node Q and the output signal O(i); a first holding circuit that maintains the output signal and the carry signal at low voltage states in response to a Node A reaching a predetermined potential; and a second holding circuit that controls a potential at the Node A, the second holding circuit including a first transistor that lowers the potential at the Node A in response to the carry signal Cr(i).

Abstract: A display device includes: a pixel array unit in which pixels are arranged in a matrix shape, each of the pixels including an electro-optic element, a writing transistor that writes a video signal, a driving transistor that drives the electro-optic element according to the video signal written by the writing transistor, and a storage capacitor that is connected between a gate electrode and a source electrode of the driving transistor and stores the video signal written by the writing transistor; and a power supply line that supplies power supply potential to the pixels, the power supply potential selectively taking first potential for supplying an electric current to the driving transistor and second potential for applying reverse bias to the electro-optic element.

Abstract: A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.

Abstract: A display device, which includes a plurality of pixels; a data driver for outputting data signals to the pixels; a bias current outputting unit for outputting a bias current having a predetermined magnitude; a plurality of driving current outputting units for outputting driving currents to the pixels; and a first switch connected between the bias current outputting unit and the driving current outputting units for selecting one of the driving current outputting units to connect to the bias current outputting unit, wherein the magnitudes of the driving currents are substantially the same as a magnitude of the bias current.