Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Industry-university Cooperation Foundation Hanyang University

Industry-university Cooperation Foundation

Tae-Hyeong Park

Il-Gon Kim

Chul-Ho Kim

Cheol-Min Kim

Kee-Chan Park

Kook-chul Moon

Dong-Ho Lee

Kook-Chul Moon

Joon-Ha Park

Oh-Kyong Kwon

Hyun-Jae Kim

Kyung-Hoon Kim

Ho-Suk Maeng

Soong-Yong Joo

Sang-Cheol Shin

Seung-Hoon Lee

Hae-Young Yun

Jin-Hwan Kim

Chung Yi

Kyung-Ho Jung

Jin-young Choi

Seong-il Park

Sook-Young Kang

Chang-Won Hwang

So-Hyun Lee

Pil-mo Choi

Woo-Suk Chung

Su-Gyeong Lee

Gi-Chang Lee

Su-Kyoung Kim

Seong-ho Kim

Hyoung-Hak Kim

Kook Chul Moon

Seung-gon Kang

Gyung-soon Park

Hyun-Sook Shim

Gyu-Sun Moon

A display panel includes a plurality of pixels including at least four even-numbered subpixels. The at least four even-numbered subpixels includes: a first red subpixel including a pixel electrode electrically connected to a switching element which is connected to a first data line and a first gate line; a first green subpixel including a pixel electrode electrically connected to a switching element which is connected to a second data line and a second gate line, where the second data line is disposed adjacent to the first data line; a first blue subpixel including a pixel electrode electrically connected to a switching element which is connected to the first data line and the second gate line; and a first multi-primary subpixel including a pixel electrode electrically connected to a switching element which is connected to the second data line and the first gate line.

Display panel having a main color subpixel and a multi-primary subpixel and display apparatus having the same with reduced number of data lines

A display apparatus includes: a pixel part including a plurality of pixels arranged substantially in a matrix form, where the matrix form includes a unit matrix having X columns in a horizontal direction and Y rows in a vertical direction, where X and Y are natural numbers; and a plurality of light controlling parts inclined with respect to the vertical direction of the pixels on the pixel part at an inclined angle of &#x3b8;, where the inclined angle of &#x3b8; satisfies the following equation: &#x3b8;=tan((M&#xd7;X)/(N&#xd7;Y)), where M and N are different natural numbers.

Display apparatus including light controlling parts and method of driving the same

A multi-primary color display device includes a unit pixel part, a plurality of data lines, a plurality of pads and a plurality of connection lines. The unit pixel part is disposed on a display area and includes at least four subpixels. The data lines extend in a first direction on display area, and are electrically connected to the subpixels. The pads are arranged in a second direction perpendicular to the first direction on a peripheral area surrounding the display area, and are electrically connected to a driving chip. The connection lines connect the data lines to the pads disposed on the peripheral area. Each of the connection lines has a same line resistance.

Multi-primary color display device

A display device is provided, which includes, a substrate, a plurality of gate lines formed on the substrate, a gate driver disposed on the substrate and transmitting gate signals to the gate lines, a repair gate driver disposed on the substrate and having a structure substantially the same as that of the gate driver, and a signal line coupled to the gate driver and the repair gate driver and transmitting at least one control signal to the gate driver.

Display device

A driving device including a board on which a timing controller for signal processing and a memory are mounted, the board having a conductive field, in which the conductive field has a non-contact region which is coated with an insulating material, and an exposed contact region which is not covered with the insulating material, the exposed contact region formed adjacent to the timing controller or the memory, a conductive member disposed in the exposed contact region, and a shield covering the board and electrically connected to the conductive field via the conductive member.

Driving device and a liquid crystal display including the same

A driving device for a display device includes a gray voltage generator generating a plurality of gray voltages, a voltage selector selecting an output voltage from the plurality of gray voltages, a voltage level converter converting a level of the output voltage selected by the voltage selector and applying the output voltage with a converted level to data lines, a first switching unit connecting the voltage level converter to the voltage selector and the data lines, and a second switching unit directly connecting the voltage selector and the data lines. Operating times of the first and second switching units are different. Accordingly, when a data voltage is charged in or discharged from a data line, since a separate discharging transistor or a separate discharging amplifier is not used, power consumption and an area of a data driver are reduced.

Driving device, display device, and method of driving the same

A liquid crystal display includes an insulating substrate, a semiconductor, a gate insulating layer, a gate line, an interlayer insulating layer, a data line, a drain electrode, a passivation layer, and a pixel electrode. The semiconductor is formed on the insulating substrate and includes source, drain, and channel regions. The gate line is formed on the gate insulating layer over the semiconductor, and overlaps the channel region thereof. The data line is formed on the interlayer insulating layer and has a source electrode electrically connected to the source region and a drain electrode electrically connected to the drain region. The passivation layer is formed on the data line and drain electrode. The pixel electrode is formed on the passivation layer, and electrically connected to the drain electrode. The data line overlaps the drain region.

Liquid crystal display wherein the data line overlaps the source region in a direction parallel with the gate line and also overlaps the drain region

A thin film transistor substrate having a semiconductor layer including a low concentration region and a source region/drain region adjacent to the low concentration region at both sides of a channel region made of polysilicon; a gate insulating layer and a conductive layer on the substrate the conductive layer patterned to form a gate electrode.

Thin film transistor substrate and fabrication thereof

An amplifier includes a biasing section, first and second differential amplifying sections and an output section. The biasing section outputs first and second bias currents based on first and second power source voltages. The first differential amplifying section outputs a first amplified voltage based on the first bias current. The second differential amplifying section outputs a second amplified voltage based on the second bias current. The output section outputs the second power source voltage based on the first amplified voltage and the first power source voltage, and outputs the first power source voltage based on the second amplified voltage and the second power source voltage. Therefore, a variation of the threshold voltage is compensated to enhance display quality.

Data driver capable of an offset compensation and display apparatus having the same

A single input level shifter, which performs a stable level-shifting operation without increasing its area when used with a thin film transistor ('TFT') having a variety of different characteristics, and includes an intermediate voltage signal providing unit for providing an intermediate voltage signal having a voltage between a supply voltage and an input signal voltage, an inverting unit for receiving the intermediate voltage signal and providing an inverted intermediate voltage signal, and a voltage signal comparing unit for comparing the intermediate voltage signal with the inverted intermediate voltage signal and providing the supply voltage or the ground voltage according to the comparison. A TFT liquid crystal display ('LCD') device employs the single input level shifter.

Level shifter with single input and liquid crystal display device using the same

A thin film transistor array panel is provided. The array panel includes a storage capacitance that is substantially uniform, and allows for a relatively large capacitance in a relatively small area. In some embodiments, the panel includes: a substrate; a plurality of semiconductor regions on the substrate, including a plurality of source and drain regions doped with a first impurity type and a dummy region doped with a second impurity type, and an intrinsic region having storage and channel regions; a gate insulating layer covering at least a portion of the semiconductor regions; a gate line including a gate electrode at least partially overlapping the channel region and formed on the gate insulating layer; a storage line including a storage electrode at least partially overlapping the storage region and formed on the gate insulating layer; a data line including a source electrode connected to the source region and formed on the gate insulating layer; a drain electrode connected to the drain region and the dummy region and formed on the gate insulating layer; and a pixel electrode connected to the drain electrode.

Thin film transistor array panel with enhanced storage capacitors

A liquid crystal display includes first to third voltage lines disposed along an edge of the panel unit in a ring shape, fourth to sixth voltage lines disposed along an edge of the panel unit in a ring shape and at outer sides of the first to third voltage lines, respectively, a first diode unit including a first diode group connected in series between the second voltage line and the fifth voltage line wherein the first diode group includes a plurality of diodes, and a second diode unit including a second diode group connected in series between the third voltage line and the sixth voltage line wherein the second diode group includes a plurality of diodes. One end of each of the data lines is connected between the first diode group and the other end thereof is connected between the second diode group via the transmission gate.

Liquid crystal display

A displaying apparatus includes a first substrate having a first orientation film, a second substrate having a second orientation film corresponding to the first orientation film, oppositely facing the first substrate, and a sealant having at least a part overlapped with circumferential regions of the orientation films, the sealant adhering the first substrate to the second substrate, wherein, in one exemplary embodiment, the circumferential regions of the orientation films overlapped with the sealant are formed with protrusions along planar directions of the substrates, thus providing a displaying apparatus having an excellent adherence between substrates and preventing a display region from being narrowed.

Liquid crystal display panel and display apparatus having the same

An analog buffer, display device having the same and a method of driving the same are provided. The analog buffer applies an analog voltage to a load. The analog buffer includes a comparator and a transistor. The comparator is configured to compare an input voltage provided from an external device with the analog voltage applied to the load. The transistor is turned on to electrically charge the load when the analog voltage is lower than the input voltage or turned on to electrically discharge the load when the analog voltage is higher than the input voltage, and turned off when the analog voltage becomes substantially the same as the input voltage.

Growing community of inventors

Yongin-si, South Korea

Tae-Hyeong Park