Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Chonnam National University

Sungjin Kim

Kyunho Kim

Sangan Kwon

Neung-Beom Lee

Seunghyun Park

Junho Song

Junpyo Lee

Sungin Ro

Yong-Jin Shin

Kyung-hwa Lim

Ocksoo Son

Seung-Kyu Lee

Jun Pyo Lee

Jaehak Lee

Jongwon Park

Huigyeong Yun

Myeonghee Seo

Jinhyuk Jang

Younguk Hwang

Youngjin Park

Yeogeon Yoon

Yeseul Lee

Hyo-Sang Yang

Shimho Yi

Uno Chang

Subin Park

Boram Shin

Kyubum Kim

Bonggyun Kang

Myungbo Sim

Ukjae Jang

Seah Kwon

Chunyoung Park

Jaekook Kim

Jihyeon Gim

A display device includes: a display panel which receives a driving voltage and an initialization voltage; a power manager which provides the driving voltage to the display panel; and a voltage generator which receives a feedback driving voltage from the display panel and generates the initialization voltage based on the feedback driving voltage. The feedback driving voltage is a voltage that is fed back to the voltage generator after the driving voltage supplied from the power manager passes through the display panel.

Display device including voltage generator for receiving feedback driving voltage

A display device may include a display panel including a plurality of pixels, a data driver which applies data signals to the display panel, a scan driver including scan stages, which sequentially applies scan signals to the display panel, an emission driver including an emission stage which sequentially applies emission signals to the display panel, and a power supply voltage generator which generates a power supply voltage including high voltages and low voltages, and provides the high voltages having different voltage levels from each other or the low voltages having different voltage levels from each other to at least one selected from the scan stages and the emission stage. The power supply voltage generator generates a first high voltage, a first low voltage, a second high voltage lower than the first high voltage, and a second low voltage higher than the first low voltage based on an input voltage.

Display device and method of operating the same

A method of manufacturing a display apparatus includes: sequentially fixing a display substrate and a mask assembly to a carrier; transporting the mask assembly and the display substrate to a deposition unit via the carrier; and depositing a deposition material on the display substrate by passing the deposition material through the mask assembly, by using the deposition unit.

Method of manufacturing display apparatus

A method of obtaining overdriving data includes providing a first data voltage corresponding to a current line reference gray level to a second pixel for first and second data writing times for first and second pixels in a first frame, measuring first luminance based on the first data voltage, applying a second data voltage corresponding to a previous line reference gray level for the first data writing time in a second frame, providing a third data voltage of an overdriving voltage corresponding to a predicted overdriving gray level added to the first data voltage for the second data writing time in the second frame, measuring second luminance based on the third data voltage, and determining an overdriving value corresponding to a reference gray level pair of the current and the previous line reference gray level as the predicted overdriving gray level when the first and second luminance are the same.

Method of obtaining overdriving data of a display device capable of providing a substantially uniform charging rate, method of operating a display device, and display device

A display device includes an image analyzing part which determines whether current frame image data includes a crosstalk pattern, and a gamma voltage generator which generates current frame gamma data by applying the asymmetric gamma when the current frame image data do not include the crosstalk pattern, and generates the current frame gamma data by applying a symmetric gamma when the current frame image data includes the crosstalk pattern. The positive polarity and negative polarity data voltages of the asymmetric gamma are asymmetric with each other for each of the grayscales, and the positive polarity and negative polarity data voltages of the symmetric gamma are symmetric with each other for each of the grayscales.

Display device and method of driving the same

A display apparatus includes a display panel including display blocks, where each of the display blocks includes a plurality of pixels, a gate driver which outputs gate signals to the pixels, a data driver which receives image data and outputs data voltages corresponding to the image data to the pixels, and a timing controller which converts an image signal input thereto, outputs the converted image signal to the data driver as the image data, and controls a driving timing of the gate driver and the data driver. The timing controller controls output timings of at least data voltages output to pixels of a predetermined display block among the data voltages provided to the pixels of the display blocks, depending on a color pattern of the image signal corresponding to the pixels of the predetermined display block.

Display apparatus and method of driving the same

A display apparatus includes a display panel including a plurality of gate lines, a plurality of data lines, and a plurality of subpixels, the subpixels being connected to the gate lines and the data lines, a driving controller configured to analyze input image data and to determine a driving mode from among one of a first driving mode and a second driving mode, a gate driver configured to output gate signals having timings different from one another to the gate lines in the first driving mode and to output gate signals having the same timing to at least two gate lines in the second driving mode, and a data driver configured to output data voltages to the data lines.

Display apparatus and method of driving display panel using the same

A method of driving a liquid crystal display panel is provided. The liquid crystal display panel includes: a liquid crystal display pixel including a liquid crystal structure including a pixel electrode, a liquid crystal layer, and a common electrode; a switching transistor connected between the pixel electrode of the liquid crystal structure and a data-line; and a storage capacitor connected to the pixel electrode of the liquid crystal structure. The method includes: calculating an accumulated driving time of the liquid crystal display panel by accumulating a driving time of the liquid crystal display panel; determining whether or not the accumulated driving time has reached a deterioration reference time; and when the accumulated driving time is determined to have reached the deterioration reference time, changing a gate-off voltage applied to a gate terminal of the switching transistor and a common voltage applied to the common electrode.

Method of driving a liquid crystal display panel and liquid crystal display device employing the same

A display device includes: a display panel comprising a display area configured to display an image, wherein the display area includes a measurement area including a plurality of sub-measurement areas, and each of the plurality of sub-measurement areas includes a plurality of pre-map areas; a data driver configured to provide data voltages to the display panel; a signal controller; and a common voltage generator configured to provide a common voltage to the display panel, wherein an afterimage reduction mode is driven to change a level of the common voltage provided by the common voltage generator when the determined pre-map areas are adjacent to each other.

Display device

A display device includes a first substrate, a thin film transistor on the first substrate, a passivation layer on the thin film transistor, a reflective layer on the passivation layer, a color filter on the reflective layer, the reflective layer having a substantially same shape as that of the color filter in a plan view, a first insulating layer on the color filter, a pixel electrode on the first insulating layer, a second substrate opposing the first substrate, and a liquid crystal layer between the first substrate and the second substrate.

Display device and method of manufacturing the same

A display device includes a first substrate spaced from a second substrate, a gate line, a first data line, and a second data line on the first substrate, a first switch connected to the gate line and the first data line, a second switch connected to the gate line and the second data line, a first pixel electrode connected to the first switch, and a second pixel electrode connected to the second switch. The second pixel electrode is adjacent to the first pixel electrode. The first gate line extends in a first direction. A first light emission area positioned corresponding to the first pixel electrode and a second light emission area positioned corresponding to the second pixel electrode are adjacent to each other in the first direction. The second data line and the second switch are in the first light emission area.

A reflective display device includes: first and second substrates opposing one another; a liquid crystal layer between the first and second substrates; a gate line on the first substrate; a gate insulating layer on the gate line; a data line on the gate insulating layer and intersecting the gate line; a thin film transistor connected to the gate line and the data line; a first passivation layer on the data line and the thin film transistor; a reflective electrode on the first passivation layer; a second passivation layer on the reflective electrode; a pixel electrode on the second passivation layer; a common electrode on the second substrate; and a matrix electrode on at least one of the first and second substrates. The matrix electrode defines a pixel area.

Reflective display device

An optical film includes: a light-transmissive matrix having a plate shape; a plurality of first rods having a refractive index different from a refractive index of the light-transmissive matrix and disposed at a first inclination angle in the light-transmissive matrix; and a plurality of second rods having a refractive index different from the refractive index of the light-transmissive matrix and disposed at a second inclination angle in the light-transmissive matrix. The first inclination angle is different from the second inclination angle.

Optical film and display device including the same

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Gwangju, South Korea

Sungjin Kim