Abstract: An image display system includes a light pen to generate light to input data, and a display panel to display images in response to the light provided from the light pen. The display panel includes a first substrate on which pixel electrodes are formed, a second substrate on which a common electrode are formed, and a photo-sensor formed on the first substrate. The photo-sensor detects the light provided from the light pen to generate a light detect signal. The image display system also includes a driving module to provide new image data to the display panel to display new images in response to the light detect signal from the photo-sensor.

Abstract: An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.

Abstract: A photo detective LCD device includes a light pen. The light pen includes a body, a driving pulse generating module and a light generating module. The body has a pen shape, and an end of the body includes an opening through which light exits. The driving pulse generating module is disposed in the body and generates first and second driving power pulses having first and second frequencies, respectively. The light generating module generates first and second light in response to the first and second driving power pulses, respectively. The first and second light flickers in a third frequency and a fourth frequency, respectively. The power consumption is reduced, and the brightness of sensing light is enhanced. The light pen generates light having at least two different frequencies, and the display device recognizes light generated from the light pen effectively. Therefore, the display device may operate without failure.

Abstract: A display device includes a panel assembly, a backlight unit supplying light to the panel assembly, a first photosensor, a second photosensor, a sensing signal processor and a signal controller. The first photosensor is supplied with ambient light and light from the backlight unit to generate a first sensing signal. The second photosensor is blocked from the ambient light and receives the light from the backlight unit to generate a second sensing signal. The sensing signal processor receives the first and the second sensing signals from the first and the second photosensors for processing. The signal controller determines a sensing state responsive to processed first and second sensing signals from the sensing signal processor and performing a predetermined control operation responsive to the sensing state.

Abstract: In accordance with one or more embodiments of the present disclosure, a display device includes a driver, a main display panel that receives an image signal from the driver to display an image and that is substantially fixed to the driver, a backlight assembly that is disposed between the main display panel and the driver to radiate light to a rear surface of the main display panel, and a sub-display panel that receives a image signal from the driver to display an image and that can be moved. The display device includes a first mode, in which the sub-display panel is disposed to be opposite to a rear surface of the main display panel, and a second mode, in which the sub-display panel is disposed to be opposite to a front surface of the main display panel.

Abstract: The first shift register applies (4n?3)-th and (4n?2)-th gate signals to (4n?3)-th and (4n?2)-th gate lines, respectively, in response to a first clock signal, a second clock signal having a delayed phase by 1H time with respect to the first clock signal, and a third clock signal having opposite phase to the first clock signal. The second shift register applies (4n?1)-th and 4n-th gate signals to (4n?1)-th and 4n-th gate lines, respectively, in response to the first clock signal, the third clock signal, and a fourth clock signal having opposite phase to the second clock signal. Therefore, a number of transistors in the first and second shift registers may be reduced.

Abstract: In a touch sensing display device, a plurality of sensor scanning lines extend in a first direction and sequentially receive a first voltage, and a plurality of sensor data lines extend in a second, different, direction. A plurality of sensing elements are formed in regions defined by the sensor scanning lines and the sensor data lines, and each sensing element transmits the first voltage from a corresponding sensor scanning line to a corresponding sensor data line responsive to an external touch. A sensing signal processor converts voltages of the sensor data lines into sensing data, and, a touch determining unit processes the sensing data corresponding to the sensor scanning lines by at least one scanning line to determine positions of touch regions generated during at least one frame.

Abstract: A reduced power thin-film transistor (TFT) array substrate includes a display section, a peripheral section, a driving circuit section and a driver chip. The display section includes a high definition section and a low definition section. The peripheral section surrounds the display section. The driving circuit section is formed on the peripheral section and is configured to provide the high definition section with a plurality of first gate signals. The driver chip is mounted on the peripheral section to provide the low definition section with a plurality of second gate signals.

Abstract: An LCD capable of being reduced by a whole size and a defective proportion thereof being minimized. An LCD panel of the LCD includes a gate driving circuit that drives gate lines formed extended along a row direction and a line block selecting circuit that drives data lines extended along a column direction. On the LCD panel, an integrated driving chip having a controller, a memory, a level shifter, a source driver, a common voltage generator and a DC/DC converter is mounted. The integrated driving chip not only drives the gate driving circuit and line block selecting circuit, but also controls the operation of the LCD panel to display an image. Thus configured, a defective proportion of the LCD is decreased, with the whole size thereof being reduced.

Abstract: A display panel having a touch screen, the display panel includes an array substrate having a plurality of pixels and an opposite substrate having a plurality of touch electrodes. The array substrate includes the pixels receiving a data signal through thin film transistors and sensors electrically and physically making contact with the touch electrodes in response to an external pressure. Each sensor generates a common voltage input through the touch electrode in response to a scan signal controlling the thin film transistor as a sensing signal. Based on the generated sensing signal, a location coordinate to which the external pressure is applied is calculated, so that the number of wires for the display panel may decrease.

Abstract: A display with a built-in touch panel and a method of manufacturing the same are provided. The display includes: a first substrate and a second substrate, wherein the first substrate and the second substrate are disposed to face each other. A conductive spacer having a first end is positioned on the first or second substrate. A cell gap spacer is disposed between the first and second substrates and at least one subsidiary cell gap spacer having a first end is disposed on the first or second substrate and positioned adjacent to the cell gap spacer. The cell gap spacer is also disposed close to the conductive spacer, and the subsidiary cell gap spacer is disposed adjacent to the cell gap spacer. Additionally, a cell gap spacer is disposed in every unit pixel, and a subsidiary cell gap spacer is disposed adjacent to each cell gap spacer.

Abstract: A method of detecting a touch position and a touch panel for performing the method are disclosed. In the above-mentioned method, a plurality of scan signals is sequentially supplied to a plurality of first sensor lines arranged in a first direction. Then, at least one of the scan signals is analyzed based on touch events, which is transferred from the first sensor lines to a plurality of second sensor lines arranged in a second direction substantially across to the first direction, and then at least one of touch positions is detected. Therefore, a plurality of scan signals is sequentially applied to the first sensor lines in the first direction, so that a plurality of touch events is simultaneously detected so that a plurality of touch positions may be detected.

Abstract: A display device including a plurality of sensing units, a plurality of first sensing signal lines, a first output unit, a first sensing output line, and a sensing signal processor. The sensing units are arranged in a matrix and generate a detection signal according to user contact. The first sensing signal lines transfer the detection signal of the sensing unit arranged in a first direction. The second sensing signal lines transfer the detection signal of the sensing units arranged in a second direction that is perpendicular to the first direction. The first output unit sequentially outputs the detection signals of the first sensing signal lines. The first sensing output line extends in the second direction for transferring the detection signal of the first output unit. The sensing signal processor determines whether contact is made or not by processing the detection signals of the first sensing signal lines and the second sensing signal lines.

Abstract: A shift register includes a plurality of stages each generating an output signal in sequence and including a buffering section, a driving section, a first charging section, and a charging control section. The buffering section receives one of a scan start signal and an output signal of a previous stage so that the driving section generates the output signal of a present stage. The first charging section includes a first terminal electrically connected to the driving section and a second terminal electrically connected to a first source voltage. The charging control section applies the output signal of a next stage to the first charging section. Therefore, a gradual failure of TFT is reduced.

Abstract: A method of driving a display device having a plurality of pixels, a plurality of sensing units, and a plurality of sense data lines to which the plurality of sensing units are connected, includes: reading sense signals from the sense data lines; determining whether or not the display has been touched and the number of touches, generating X-axis and Y-axis position data based on the sense signals, and determining, when the quantity of touches is plural, whether a plurality of touches are sequentially generated, and the touch position of each.

Abstract: Disclosed is a transmissive and reflective type LCD. In the LCD, a second substrate faces a first substrate. A liquid crystal layer is formed between the first substrate and the second substrate. A first polarizing plate is formed on an outer surface of the first substrate. A second polarizing plate is formed on an outer surface of the second substrate. A backlight is arranged for irradiating incident light onto the polarizing plate. A transparent transflective film is arranged between the first polarizing plate and the backlight for partially reflecting and partially transmitting the incident light. The transparent transflective film includes at least a first layer and a second layer, the first and second layers having different refractivity indexes from each other and are alternatively stacked.

Abstract: The display device includes a first display panel, a second display panel and an integration chip. The first display panel includes a plurality of pixels, each pixel of the plurality of pixels having a switching element, and a plurality of gate lines and a plurality of data lines respectively connected to the switching element. The second display panel includes a plurality of X electrode lines and a plurality of Y electrode lines. The integration chip is attached to the first display panel and drives the first and second display panels. The first display panel and the second display panel respectively include different driving schemes.

Abstract: A liquid crystal display apparatus including a gate driving circuit disposed on a liquid crystal display is provided. The apparatus further includes a data driving chip, disposed on the liquid crystal display panel, to apply data driving signals to data lines. The gate driving circuit includes a plurality of stages connected to one another in parallel. The odd-numbered stages of the stages each apply gate driving signals to odd-numbered gate lines of the gate lines, in response to a first clock signal and the even-numbered stages of the stages each apply the gate driving signals to even-numbered gate lines of the gate lines, in response to a second clock signal having an opposite phase from a phase of the first clock signal.

Abstract: A method and apparatus for forming a sealing member includes forming a first sealing part to surround one portion of a display area, the display area including a pixel, and forming a second sealing part to surround a remaining portion of the display area and to intersect ends defining the second sealing part with corresponding ends defining the first sealing part. Thus, a time needed to form the first and second sealing member may be reduced, thereby reducing an entire process time to manufacture the display apparatus. Further, an area needed to form the sealing member may be reduced, thereby enhancing productivity of the display apparatus.

Abstract: A liquid crystal display apparatus including a gate driving circuit disposed on a liquid crystal display is provided. The apparatus further includes a data driving chip, disposed on the liquid crystal display panel, to apply data driving signals to data lines. The gate driving circuit includes a plurality of stages connected to one another in parallel. The odd-numbered stages of the stages each apply gate driving signals to odd-numbered gate lines of the gate lines, in response to a first clock signal and the even-numbered stages of the stages each apply the gate driving signals to even-numbered gate lines of the gate lines, in response to a second clock signal having an opposite phase from a phase of the first clock signal.