Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Tae-Gon Kim

Chul-Woo Jeong

Sung-Soo Koh

Hee-Seong Jeong

Dong-Yoon So

Jae-Yong Kim

Kyong-Tae Park

Sung-Ho Cho

Seung-Yeon Cho

Ji-Yong Park

Chi-Wook An

Kyung-Min Park

Moo-Soon Ko

Ok-Byoung Kim

Shin Ae Jun

Soon-Ryong Park

Woo-Suk Jung

Jae-Han Lee

Shang Hyeun Park

Se-Ho Kim

Dong-Wook Kim

Jong Hoon Won

Minho Kim

Nayoun Won

Ji-Hye Kim

A Ra Jo

Yong-Chul Kim

Sun-Kyu Son

Tae-Kyu Kim

Yong-Bum Kim

Sun-Koo Kang

Jae-Sic Lee

Young-Il Ban

Il-Ryong Cho

Won-Tae Kim

Jung-Hoon Kim

Seong-Yeun Kang

Warrick So

Kyoung-Tae Park

Yebin Jung

Seungrim Yang

A display panel and an electronic device including the display panel are provided, where the display panel includes a quantum dot composite including a matrix and a plurality of quantum dots and titanium dioxide (TiO) particles dispersed in the matrix, the plurality of quantum dots include silver and gallium, exhibit an emission peak wavelength of from about 500 nm to about 550 nm, and a full width at half maximum of the emission peak is greater than or equal to about 10 nm and less than or equal to about 50 nm, and where the quantum dot composite has a mole ratio of silver to titanium of greater than or equal to about 0.4:1 and less than or equal to about 15:1, and a mole ratio of gallium to titanium of greater than or equal to about 0.4:1 and less than or equal to about 20:1.

Display panel, and electronic device including same

Display substrates and display devices with reduced electrical resistance are disclosed. One inventive aspect includes a switching device, a first wiring and a second wiring. The switching device includes a first semiconductor layer, first and second gate insulation layers, a source electrode and a drain electrode. The source and drain electrodes are formed to electrically connect, through the first and second gate insulation layers, to the first semiconductor layer. The second wiring is formed on the second gate insulation layer and electrically connected to the first wiring.

Method for manufacturing a display substrate comprising interconnected first and second wirings

Display substrate comprising interconnected first and second wirings and display device including the same

An organic light emitting display device includes data lines and an auxiliary data line, scan lines and emission control lines crossing the data lines and the auxiliary data line, display pixels at crossing regions of the data lines, the scan lines and the emission control lines, auxiliary pixels at crossing regions of the auxiliary data line, the scan lines and the emission control lines, and auxiliary lines coupled to the auxiliary pixels. Each of the auxiliary pixels includes a discharge transistor coupled to one of the auxiliary lines and a first power voltage line to which a first power voltage is supplied and a discharge transistor controller including a plurality of transistors and configured to control the discharge transistor.

Organic light emitting display device for preventing erroneous light emission

A data driver includes a first data voltage generator, a data converter and a second data voltage generator. The first data voltage generator is configured to generate a first data voltage based on first pixel data and configured to output the first data voltage to a first data line, the first pixel data being generated based on a first gamma curve. The data converter is configured to convert second pixel data to first converted pixel data, the second pixel data being generated based on the first gamma curve, the first converted pixel data being generated based on a second gamma curve different from the first gamma curve. The second data voltage generator is configured to generate a second data voltage based on the first converted pixel data and configured to output the second data voltage to a second data line.

Data driver, display apparatus having the same and method of driving the display apparatus

An organic light emitting display device includes display pixels, auxiliary pixels, and a plurality of signal lines. The signal lines include data lines, auxiliary data lines, scan lines, and emission control lines. The auxiliary pixels are to be used for repairing defective ones of the display pixels. In operation, scan signals are supplied in a unit of p scan lines, A emission control signals are to be supplied in a unit of p A emission control lines, and B emission control signals are to be supplied in a unit of p B emission control lines, where p&#x2267;2.

Organic light emitting display device

An organic light emitting display device including data lines, an auxiliary data line, and a compensation data line, a display area including display pixels connected to the data lines, a nondisplay area including auxiliary pixels connected to the auxiliary data line, and compensation pixels connected to the compensation data line, and auxiliary lines connected to the auxiliary pixels and the compensation pixels.

A pixel repair circuit and organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, the pixel repair circuit includes an emission controller configured to control the emission current and a repair line initialization unit configured to initialize the repair line. The pixel repair circuit further includes a current mirror unit configured to provide a mirror current of the emission current to the repair line initialization unit, wherein the current mirror unit is connected between a power supply voltage and the emission controller. The pixel repair circuit also includes a first emission switch configured to control an electrical connection between the emission controller and the current mirror unit based on an emission control signal and a second emission switch configured to control an electrical connection between the emission controller and the repair line based on the emission control signal.

Pixel repair circuit and organic light-emitting diode (OLED) display having the same

A source drive integrated circuit includes a source driving circuit, output buffers, and voltage protection circuits. The source driving circuit generates data voltages according to a source timing control signal and digital video data. The output buffers output the data voltages from the source driving circuit to output terminals. The voltage protection circuits are connected between the output buffers and the output terminals. A voltage supplied to at least one of the voltage protection circuits is different from a voltage supplied to remaining ones of the voltage protection circuits.

Source drive integrated circuit and display device including the same

A display apparatus includes: pixels at a display area; dummy pixels at a dummy area; and repair lines coupled to the dummy pixels and connectably arranged to the pixels, each of the dummy pixels including: a driving transistor configured to output a driving current corresponding to a data signal applied to a gate electrode thereof; an emission control transistor between a connection node of a corresponding repair line of the repair lines and the driving transistor, configured to be controlled by an emission control signal; a bypass transistor between the connection node and a first initialization voltage line through which a first initialization voltage is supplied, configured to be controlled by an initialization control signal; and a coupling removal transistor between the connection node and the first initialization voltage line, configured to be controlled by a coupling control signal applied at a different timing from the initialization control signal.

Display apparatus including dummy pixels and repair lines

A display panel driving apparatus, including a gate driving part configured to output a gate signal to gate lines of a display panel, and a data driving part configured to output a data signal to a data line of the display panel, including a digital-analog converter, wherein the digital-analog converter is configured to convert a common voltage control data of digital format to a common voltage control voltage of analog format.

Display panel driving apparatus and display apparatus having the same

An organic light emitting diode display includes: a substrate; a semiconductor layer formed on the substrate and including a switching semiconductor layer, a driving semiconductor layer, and a light emission control semiconductor layer spaced apart from each other; a first gate insulating layer covering the semiconductor layer; a light emission control gate electrode formed on the first gate insulating layer and overlapping the light emission control semiconductor layer; a second gate insulating layer covering the light emission control gate electrode; a switching gate electrode and a driving gate electrode formed on the second gate insulating layer and respectively overlapping the switching semiconductor layer and the driving semiconductor layer; and an interlayer insulating layer covering the switching gate electrode, the driving gate electrode, and the second gate insulating layer. A doping concentration of a channel region of the driving semiconductor layer is higher than a doping concentration of a channel region of the light emission control semiconductor layer.

Organic light emitting diode display and method of manufacturing the same

A display apparatus includes an array of pixels and dummy pixels. A plurality of first lines are connected to the pixels and the dummy pixels. A plurality of repair lines are connected to the dummy pixels and are selectively connected to the pixels. A plurality of second lines are connected to the pixels. At least one dummy line is connected to the dummy pixels. At least one dummy wiring is connected to the at least one dummy line and is selectively connected to one of the second lines.

Organic light-emitting display apparatus

An organic light emitting display panel may include a plurality of thin film transistors on a substrate, an insulating interlayer on the thin film transistors, a plurality of first electrodes on a portion of the insulating interlayer electrically connected to the thin film transistors, a plurality of metal lines on a portion of the insulating interlayer, a pixel defining layer on a portion of the insulating interlayer and a portion of the first electrodes, a plurality of organic light emitting structures on the first electrodes in the pixel area, a second electrode on the organic light emitting structures, and a spacer on the pixel defining layer. The insulation interlayer may partially expose electrodes of the thin film transistors. The pixel defining layer may define a pixel area by partially exposing the first electrodes, and an exposed area of the insulating interlayer by partially exposing the insulating interlayer.

Organic light emitting display panel including a protective spacer and method of manufacturing the same

An organic light emitting diode display according to the present invention includes a substrate and a plurality of pixels formed on the substrate. One pixel includes: a scan line formed on the substrate and transmitting a scan signal; a data line and a driving voltage line crossing the scan line and transmitting a data signal and a driving voltage, respectively; a switching thin film transistor connected to the scan line and the data line; a driving thin film transistor connected to a switching drain electrode of the switching thin film transistor; and an organic light emitting diode connected to a driving drain electrode of the driving thin film transistor. The plurality of pixels includes a separation pixel at which the driving voltage line is separated and a connection pixel at which the driving voltage line is connected.

Organic light emitting diode display

Growing community of inventors

Yongin, South Korea

Tae-Gon Kim