Abstract: An electro-phoretic display and a method for driving the same are provided, where the electro-phoretic display has a plurality of pixel units. The method includes: setting a plurality of particle tightening time periods and a plurality of gray level displaying time periods for the pixel units respectively, where each of the gray level displaying time periods is arranged after each corresponding particle tightening time period; providing a plurality of particle tightening voltages to the pixel units for tightening the particles of the pixel units respectively during the particle tightening time periods, and providing a plurality of display driving voltages to the pixel units during the gray level displaying time periods. The particle tightening time periods and/or the gray level displaying time periods are determined by a plurality of display gray level data corresponding to the pixel units.

Abstract: A touch screen driving apparatus includes: a touch screen configured to include Tx (transmitting) lines, Rx (receiving) lines crossing the Tx lines, and sensor nodes formed intersections of the Tx lines and the Rx lines; a Tx driver configured to apply driving pulses to the Tx lines in such a manner of that mutually phase-inverted driving pulses are applied to the Tx lines adjacent to each other; first and second Rx drivers each configured to sample sensor node voltage received through the Rx lines, which are coupled with the Tx lines, and convert the sampled voltages into digital data; and a touch controller configured to control the Tx driver and the first and second Rx drivers. The first and second Rx drivers divide the Rx lines and each sample the sensor node voltages through the divided Rx lines, and the Rx line positioned at a boundary between the first and second drivers is commonly connected to the first and second Rx drivers.

Abstract: A display driving device includes a first source amplifier that receives first display data and supplies a first pixel voltage to a first pixel based on the received first display data, and a second source amplifier that receives second display data and first control data and supplies a second pixel voltage to a second pixel based on the received second display data and first control data. The second source amplifier has a first stage in which a first process is performed on an input signal based on the second display data, and a second stage in which a second process is performed on the first processed input signal to output the second pixel voltage. The first source amplifier may be configured to conditionally supply the first pixel voltage to the second pixel.

Abstract: A touch sensing system includes: a panel portion defined into a plurality of sensing regions; a memory portion which includes a first memory configured to store sensing data obtained from each of the sensing regions of the panel portion and a second memory configured to store reference data; and a control portion which includes a calculator configured to compare the sensing data of each sensing region with the reference data and a touch determiner configured to determine generation of a touch based on output of the calculator.

Abstract: A display device includes a panel comprising a plurality of driving electrodes and a plurality of receiving electrodes; a panel driver sequentially supplying a scan pulse to a plurality of gate lines corresponding to a first driving electrode of the plurality of driving electrodes, and after a touch sensing period, sequentially supplying a scan pulse to a plurality of gate lines corresponding to a second driving electrode of the plurality of driving electrodes, wherein the panel driver repeatedly performs the sequentially supplying of the scan pulse; and a touch sensing unit sequentially supplying a driving voltage to at least two or more of the plurality of driving electrodes to determine whether there is a touch during the touch sensing period.

Abstract: In a data line driver, successively input image data are sequentially stored in a first data storage unit and a second data storage unit. A subtracter calculates a difference value between the image data stored in the first data storage unit and the image data stored in the second data storage unit. A timing pulse generator generates a timing pulse based on the calculated difference value, and a charge supply circuit supplies a charge to a gradation voltage output terminal in accordance with the timing pulse. The rising and falling characteristics of gradation voltage when the image data is changed are improved in this way.

Abstract: A method and apparatus for inputting characters in a terminal are provided. The method includes receiving a first key input through a key input unit; storing at least one character corresponding to the first key input; displaying the stored at least one character in a first display area; removing the displayed at least one character from the first display area in response to a second key input received through the key input unit; displaying the removed at least one character in a second display area; receiving input of a selection of at least one character that is displayed in the second display area; and displaying the selected at least one character in the first display area.

Abstract: A pixel includes an organic light emitting diode (OLED), a first transistor, a first capacitor, a second capacitor, and a pixel circuit. The OLED includes a cathode electrode connected to a second power source. The first transistor is connected between a data line and a first node, and turns on when a scan signal is supplied to a scan line. The first capacitor is connected between the first node and a third power source. The second capacitor is connected between the first node and a fourth power source. The pixel circuit controls a current quantity flowing from a first power source to the second power source through the OLED based on a voltage of the first node.

Abstract: A gate signal line driving circuit which suppresses noises in a gate signal and a display device which uses the gate signal line driving circuit are provided. A first basic circuit provided to a gate signal line driving circuit includes a HIGH voltage applying switching element which applies a HIGH voltage to gate signal lines in response to a signal HIGH period, and a LOW voltage applying switching circuit which applies a LOW voltage to the gate signal lines in response to a signal LOW period. In response to a signal HIGH period, a switch of the LOW voltage applying switching circuit of the first basic circuit is turned off based on a signal applied to a switch of the HIGH voltage applying switching element of a second basic circuit which assumes a signal HIGH period earlier than the first basic circuit.

Abstract: An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module.

Abstract: Disclosed herein is a liquid crystal display device formed by laminating at least two first and second liquid crystal panels, the liquid crystal panels being each formed by disposing a liquid crystal layer between two transparent substrates arranged so as to be opposed to each other and two-dimensionally arranging pixels in a form of a matrix on one of the two substrates, and disposing a backlight on a side of the first liquid crystal panel. The liquid crystal display device includes: a first driver configured to drive the first liquid crystal panel on a side of the backlight by n-time speed driving in which one frame period is divided into n fields; and a second driver configured to drive the second liquid crystal panel on a display surface side by normal driving in which one frame period is not divided.

Abstract: An organic light emitting display device includes pixels positioned at crossing regions between data lines and scan lines, each of the pixels including an organic light emitting diode, a scan driver configured to supply a scan signal to scan lines, a data driver configured to drive the data lines, wherein the data driver includes, in each channel, a supply part comprising a digital-to-analog converter configured to generate data signals using second data supplied from outside in a driving period, and a deterioration part configured to measure deterioration information of the organic light emitting diode using the digital-to-analog converter in a sensing period.

Abstract: A display device including a display part including a pixel of a first series having a first horizontal pixel width and a pixel of a second series having a second horizontal pixel width smaller than the first horizontal pixel width, the pixels of the first series and the pixels of the second series being arrayed alternately in each of a horizontal direction and a vertical direction, and a light beam control part that controls a light beam from the display part or a light beam toward the display part.

Abstract: An organic light-emitting display apparatus includes: a plurality of emitting pixels coupled to a plurality of scan lines extending in a row direction and a plurality of data lines extending in a column direction; a plurality of dummy pixels arranged in the row direction; a plurality of first repair lines extending in the column direction, that are coupled to the plurality of dummy pixels, and that are adapted to be coupled to the plurality of emitting pixels; a plurality of second repair lines extending in the column direction, and that are coupled to the plurality of dummy pixels; and a plurality of repair switching devices arranged in a matrix array and adapted to be coupled to the plurality of scan lines and the plurality of second repair lines and adapted to be coupled to the plurality of data lines.

Abstract: According to an aspect, a display device includes: a plurality of pixels aligned in row and column directions, each of the pixels including a drive element; a plurality of scan lines each coupled with the drive elements included in the pixels aligned in the row direction to transmit thereto a scan signal for selecting the pixels row by row; a plurality of signal lines each coupled with the drive elements included in the pixels aligned in the column direction to write display data; and a display control unit. The display control unit alternately repeats a display period and a stop period. In a latter term of the stop period, display control unit provides the display data written in the respective pixels in a row that has been selected during the display period immediately before the stop period, to the signal lines corresponding to the respective pixels.

Abstract: An object of the present invention is to achieve additional control of power consumption in a display device by performing fine-point switch off control corresponding to a method of a user's touch operation. The display device includes a touch panel and a display unit with a backlight, an area detecting section for detecting a touch area when a touch operation is performed on the touch panel, and a control section for controlling a lighting time interval of the backlight according to the touch area. The method of the touch operation by the user is detected as a difference in touch area and, according to the touch area the lighting time interval of the backlight can be controlled. For example, the lighting time interval can be set short in the case of a light touch, and the lighting time interval can be set long in the case of a firm touch.

Abstract: A drive control apparatus includes a storage storing first or second waveform data representing a drive signal, and a drive controller reading the first or the second waveform data, and output the drive signal to the actuator. The first waveform data applying vibration m×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (f1=(m/n)×f0 (m and n are mutually different natural numbers other than 0)) by a damping ratio of a vibration system to an actuator, and the second waveform data applying a vibration (m/2)×Q times (Q is a natural number other than 0) and obtained by multiplying a sine wave (a frequency f1=(m/n)×f0 (m and n are mutually different positive odd numbers)) by the damping ratio to the actuator, where f0 represents a resonant frequency of the actuator.

Abstract: A display panel includes: gate and data lines; pixels connected to the gate and data lines; and a stage includes: a pull-up driver including an output terminal of the stage and which outputs a gate-on voltage, an output pull-down unit which pulls down an output terminal of the stage, a reset unit which changes a voltage of a second node into a low voltage based on a voltage of the output terminal of the stage, a first node pull-up unit which changes a first node into a high voltage based on a gate-on voltage from a previous stage, a first node pull-down unit which changes the first node into the low voltage based on the gate-on voltage from a subsequent stage, and a first node reset unit which changes the voltage of the first node into the low voltage based on the voltage of the second node.

Abstract: A method of driving a light-source module includes adjusting a frequency of a boosting switching signal based on a dimming signal which controls luminance of a light-emitting diode (“LED”) string of the light-source module, where the LED string comprises a plurality of LEDs connected to each other in series, and controlling a main transistor in response to the boosting switching signal to transfer a driving voltage to the LED string.

Abstract: The present invention provides a gamma voltage supply circuit capable of stably supplying a gamma voltage in response to the change of external voltage and a power management IC including the same. The gamma voltage supply circuit generates a regulating voltage using an internal voltage which is not influenced by the variation in load of a source driver IC, and generates a gamma voltage using the regulating voltage.