Samsung Display Co., Ltd.

Soo-wan Yoon

Yeong-Keun Kwon

Ji-Sun Kim

Young-Soo Yoon

Joon-Chul Goh

Chong-Chul Chai

Jae Keun Lim

Young Wan Seo

Chongchul Chai

Bonghyun You

Jong Hee Kim

Young-soo Yoon

Su-Hyeong Park

Ji-Myoung Seo

Hee-Soon Jeong

Hyung Jun Kim

Chong Chul Chai

Hong-Sick Park

Jaehoon Lee

Sang Gab Kim

Dong-Yoon Kim

Byeong-Jin Lee

Kyoungju Shin

Eun-Guk Lee

Ji-Young Park

Ji-Woong Jeong

Byung-Duk Yang

Yong-Mo Choi

Sung-Haeng Cho

Heesoon Jeong

Suhyeong Park

Jimyoung Seo

Jong Hyuck Kim

Jun-Woo Hong

Chong-Chui Chai

A display apparatus includes: a display panel including a plurality of pixels respectively connected to a plurality of gate lines; a gate driving circuit including a plurality of driving stages configured to apply gate signals to the gate lines; a voltage generator configured to output a gate-on voltage through a voltage output terminal thereof; and a signal controller configured to sense a variation in current of the voltage output terminal to output a back bias control voltage corresponding to the sensed current variation, wherein each of the driving stages comprises a plurality of oxide thin film transistors and at least one of the oxide thin film transistors is a four-terminal transistor in which a threshold voltage thereof is controlled by the back bias control voltage.

Display apparatus having gate driving circuit

A display apparatus includes: a display panel including a gate line, a storage line adjacent to the gate line, and a pixel, the pixel including a pixel transistor coupled to the gate line, a liquid crystal ('LC') capacitor coupled to the pixel transistor, and a storage capacitor coupled to the LC capacitor; a first gate driver configured to provide a gate signal to the gate line; and a first level switch configured to provide a storage signal to the storage line, the storage signal being synchronized with the gate signal and having a phase opposite to a phase of the gate signal.

Display apparatus and method of driving the display apparatus

A display device includes a display area including a gate line and a data line and a gate driver connected to an end of the gate line, the gate driver including at least one stages integrated on a substrate configured to output a gate voltage, in which the stage includes an inverter unit and an output unit, in which the output unit includes a first transistor and a first capacitor. The first transistor includes an input terminal applied with a clock signal, a control terminal connected to the node Q, and an output terminal connected to a gate voltage output terminal through which the gate voltage is output. An inverter voltage output from the inverter is lower than the low voltage of the gate voltage output by the output unit.

Display panel

A display apparatus includes a display panel and a driving circuit. The display panel includes pixels. Each of the pixels is connected to one of gate lines and one of data lines. The driving circuit drives the gate lines and the data lines to display an image on the display panel. The driving circuit alternately provides a first polarity data driving signal and a second polarity data driving signal to each of the plurality of data lines. During an asymmetrical mode, the first polarity data driving signal is provided to first data lines of the data lines during a first frame period before a blank period begins, and the second polarity data driving signal is provided to the first data lines during a second frame period after the blank period ends. The second frame period excludes the blank period.

Liquid crystal display apparatus

An electroluminescent display and a method of driving the same are disclosed. In one aspect, the display includes a display panel including a plurality of pixels configured to operate based on a first power supply voltage having a negative voltage level. The display panel is configured to generate at least one feedback voltage corresponding to an ohmic drop of the first power supply voltage. An analog-to-digital converter is configured to generate at least one digital feedback signal based on the at least one feedback voltage. An adaptive voltage controller is configured to generate a voltage control signal based on input image data, the at least one digital feedback signal, a distribution of the input image data and the ohmic drop of the first power supply voltage. A voltage converter is configured to generate the first power supply voltage based on an input voltage and the voltage control signal.

Electroluminescent display and method of driving the same

A display apparatus includes gate lines, data lines insulated from the gate lines while crossing the gate lines, and pixels each including sub-pixels in two successive rows by three successive columns. Among the sub-pixels in the two rows by the three columns, the sub-pixels in one of the three columns are respectively connected to a pair of different gate lines among three gate lines, and the sub-pixels in a different one of the three columns are connected to a remaining gate line among the three gate lines. The sub-pixels in the one and the different one of the three columns includes the same color filter and are applied with a gate signal transmitted in the same direction along pixel rows.

Display apparatus

In a display panel, a display apparatus having the display panel, and a method of driving the display apparatus, a conductive spacer is interposed between an array substrate and an opposite substrate, and the conductive spacer electrically connects a pixel electrode and a common electrode when a touch event occurs for one or more embodiments. When a common voltage is applied to the pixel electrode by the touch event, an electric potential of a data line is lowered by the common voltage through a turned-on switching device. A signal reader periodically reads out the voltage of the data line and senses the touch event using the read-out voltage to detect a touch position at which the touch event occurs. Thus, the display panel having a touch screen function may be manufactured, and an aperture ratio in the display panel may be prevented from being deteriorated.

Display panel, display apparatus having the same and method of driving the display apparatus

A display device includes: an insulation substrate; a plurality of gate lines on the insulation substrate and divided into a first group and a second group; a plurality of data lines insulated from and intersecting the gate lines; a gate driver which applies a gate-on voltage to the gate lines and operates in one of a first mode and a second mode; and a data driver which applies a data voltage to the data lines, where the first group and the second group of the gate lines are applied with the gate-on voltage when the gate driver is in the first mode, and where the first group of the gate lines is applied with the gate-on voltage and the second group of the gate lines is in an off state when the gate driver is in the second mode.

Display device with a power saving mode in which operation of either the odd-line gate driver or the even-line gate driver is halted

An exemplary embodiment of the present invention discloses a display substrate including a pixel connected to a first gate line and a data line. The pixel includes a first sub-pixel including a first liquid crystal capacitor and a first switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the first liquid crystal capacitor. The pixel also includes a second sub-pixel including a second liquid crystal capacitor and a second switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the second liquid crystal capacitor. The pixel further includes a controller including a control capacitor and a control switching element, the control switching element connected between a terminal of the control capacitor and the drain electrode of the second switching element. The control capacitor includes a first capacitor electrode and a second capacitor electrode. The first capacitor electrode is arranged on the same level on the display substrate as the gate electrode or is arranged on the same level on the display substrate as the source electrode and the drain electrode. The second capacitor electrode is arranged on the same level on the display substrate as a pixel electrode.

Display substrate and fabricating method thereof

A mask includes: a substrate that includes a central area and a peripheral area disposed around the central area; and lenses disposed in rows and columns, in the central area and the peripheral area. The lenses of opposing sides of the peripheral area may be disposed in different rows or columns. For a given amount of input light, the lenses of the peripheral area may focus less light on a substrate than the lenses of the central area. The mask may be disposed over the substrate in different positions, and then the substrate may be irradiated through the mask, while the mask is in each of the positions. The peripheral portion of the mask may be disposed over the same area of the substrate, while the mask is in different ones of the positions.

Mask and method of manufacturing array substrate using the same

A gate driving circuit includes a pull-up control part, a pull-up part, a carry part, a first pull-down part and a second pull-down part. The pull-up control part applies a carry signal from a previous stage to a first node. The pull-up part outputs an N-th gate output signal based on a clock signal. The carry part outputs an N-th carry signal based on the clock signal in response to the signal applied to the first node. The first pull-down part includes a plurality of transistors connected to each other in series. The first pull-down part pulls down a signal at the first node to a second off voltage in response to a carry signal of a next stage. The second pull-down part pulls down the N-th gate output signal to a first off voltage in response to the carry signal of the next stage.

Gate driving circuit and display apparatus having the same

A liquid crystal display includes a plurality of pixels. Each pixel of the plurality of pixels includes a gate line which receives a gate signal; a data line which receives a data voltage; a first sub-pixel including a first transistor connected to the gate line and the data line, wherein the first transistor outputs the data voltage in response to the gate signal; and a first liquid crystal capacitor connected to the first transistor. Each pixel further includes a second sub-pixel including a second transistor connected to the gate line and the data line, wherein the second transistor outputs the data voltage in response to the gate signal; and a second liquid crystal capacitor connected to the second transistor; a resistor connected to the second transistor; and a first sharing capacitor connected to the resistor, wherein the first sharing capacitor receives the data voltage through the resistor.

Liquid crystal display, method of driving the same, and method of manufacturing the same

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Hwaseong-si, South Korea

Soo-wan Yoon