Sony Corporation

Joled Inc.

Sony Group Corporation

Jdi Design and Development G. K.

Katsuhide Uchino

Junichi Yamashita

Tetsuro Yamamoto

Yukihito Iida

Tetsuo Minami

Naobumi Toyomura

Takayuki Taneda

Takao Tanikame

Masatsugu Tomida

Hiroshi Sagawa

Mitsuru Asano

Kazuo Nakamura

Akitsuna Takagi

Tomoaki Handa

Yutaka Mitomi

Toshikazu Maekawa

Atsushi Ozawa

Yuki Seo

Hideki Sugimoto

Yuuki Seo

Kazuhiro Noda

Hiroshi Hasegawa

Nobutoshi Asai

Yusuke Onoyama

Fumiaki Abe

Masakazu Kato

Jiro Yamada

Seiichiro Jinta

Kikuo Kaise

Hisanori Tsuboi

Hiromi Fukumori

Tadahiro Hagita

Syuichi Shima

Hideshi Sugita

Ken Tamayama

Hideyuki Kitagawa

Teturou Yamamoto

Yoshiharu Nakajima

Keisuke Omoto

Hiroaki Ichikawa

Yuji Hayashi

Hideo Kataoka

Takusei Sato

Yoshihiro Hashimoto

Gaku Izumi

Satofumi Koike

Masayuki Iida

Hiroyoshi Tsubota

Kimitaka Kawase

Munenori Ono

Hidekazu Miyake

Yukihito Lida

Yukihito Ilda

Teturo Yamamoto

Disclosed herein is a display apparatus, including: a foldable substrate; a pixel array section including a plurality of pixels disposed on the substrate and each including an electro-optical device; the foldable substrate being folded at a substrate end portion at least on one side thereof around the pixel array section; a peripheral circuit section disposed on the substrate end portion and adapted to drive the pixels of the pixel array section; and a pad section provided on the substrate end portion on which the peripheral circuit section is provided and adapted to electrically connect the peripheral circuit section to the outside of the substrate.

Display apparatus and electronic apparatus

A pixel circuit, display device, and method of driving a pixel circuit enabling source-follower output with no deterioration of luminance even with a change of the current-voltage characteristic of the light emitting element along with elapse, enabling a source-follower circuit of n-channel transistors, and able to use an n-channel transistor as an EL drive transistor while using current anode-cathode electrodes. The circuit includes a source of a TFT used as a drive transistor that is connected to an anode of a light emitting element, and a drain of the TFT is connected to a power source potential. A capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT used as a switching transistor.

Pixel circuit, display device, and method of driving pixel circuit

A pixel circuit able to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn able to reliably prevent deterioration of uniformity, wherein a source of a TFT serving as a drive transistor is connected to an anode of a light emitting element, a drain is connected to a power source potential, a capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT serving as a switch transistor and wherein pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts.

Pixel circuit and display device

A display device including: a plurality of sub-pixels arranged in a matrix, each including an electro-optical element having a structure in which a display functional layer is sandwiched between an upper electrode and a lower electrode; and an auxiliary interconnect contact in a pixel area in which the plurality of sub-pixels are arranged in a matrix and electrically connecting the upper electrode to an auxiliary interconnect, wherein m (m is an integer equal to or larger than two) sub-pixels adjacent to each other along an arrangement direction of the sub-pixels are regarded as one group, and n (n is a natural number smaller than m) auxiliary interconnect contacts are formed for each group.

Display device and electronic apparatus

A display device according to the present disclosure includes: a pixel array unit () in which pixel circuits (A) are disposed in a matrix form, the pixel circuits each including a light emission unit (), a write transistor () that writes a signal voltage (Vsig) of a video signal, a retention capacitor () that retains the signal voltage (Vsig) written by the write transistor (), a drive transistor () that drives the light emission unit () on the basis of the signal voltage (Vsig) retained by the retention capacitor (), and an auxiliary capacitor () of which one terminal is connected to a source node of the drive transistor (); and a control unit () that provides a potential change to a source electrode of the drive transistor () by coupling through the auxiliary capacitor () to set an operation point of the drive transistor () as a cut-off region after the threshold value correction process.

Display device, method for driving display device, and electronic device

Disclosed herein is a display device including: a pixel array portion; a drive portion; and a power source wiring; the pixel array portion, at least a part of the drive portion configured to drive the pixel array portion and the power source wiring are forming a panel, the pixel array portion including scanning lines disposed in rows, signal lines disposed in columns, and pixels disposed in matrix in portions where the scanning lines and the signal lines cross each other, respectively, the drive portion including a scanner portion configured to drive the pixels in a line-sequential manner through the scanning lines, and a signal portion configured to supply a video signal to each of the signal lines in correspondence to the line-sequential drive, so that an image is displayed on the pixel array portion.

Display device and a method of manufacturing display device

A display apparatus includes a pixel unit in which pixels are arranged in a matrix pattern; and a driving circuit for driving the pixel unit. Each of the pixels includes a signal level holding capacitor; a first transistor that is turned on/off in response to a writing signal and via which one end of the signal level holding capacitor is connected to a signal line; a second transistor having one end of the signal level holding capacitor connected to a gate thereof and the other end of the signal level holding capacitor connected to a source thereof; a current-driven self-light-emitting element whose cathode is held at a cathode potential and whose anode is connected to the source of the second transistor; a third transistor that is turned on/off in response to a driving pulse signal; and a fourth transistor that is turned on/off in response to a control signal.

A pixel circuit having a function of compensating for characteristic variation of an electro-optical element and threshold voltage variation of a transistor is formed from a reduced number of component elements. An input signal is sampled from a signal line so as to be held in a holding capacitor. The threshold voltage of the drive transistor is imparted to the holding capacitor in order to cancel an influence of the threshold voltage.

Display apparatus including pixel circuit with transistors connected to different control lines

A display device includes a pixel array unit in which pixel circuits are disposed in a matrix form, the pixel circuits each including a light emission unit, a write transistor that writes a signal voltage of a video signal, a retention capacitor that retains the signal voltage written by the write transistor, and a drive transistor that drives the light emission unit on the basis of the signal voltage retained by the retention capacitor; and a common line that is wired along a pixel row, for each pixel row. The pixel circuit includes a switching transistor which selectively connects the common line and a source electrode of the drive transistor.

A pixel circuit performs a threshold voltage correcting function. A sampling transistor becomes conductive in response to a control signal supplied from a scan line and samples a video signal supplied from a signal line to a pixel capacitor during a horizontal scanning period. The pixel capacitor applies an input voltage to a gate of a drive transistor in response to the sampled video signal. The drive transistor supplies an output current in accordance with the input voltage to a light-emitting device. A threshold voltage correcting period is provided to be part of the horizontal scanning period, to detect the threshold voltage of the drive transistor, and to write the threshold voltage in the pixel capacitor.

Pixel circuit and display apparatus

A display device is disclosed. The display device includes: a pixel array unit and a driving unit which drives the pixel array unit. The pixel array unit includes rows of first scanning lines and second scanning lines, columns of signals, pixels in a matrix state arranged at portions where the scanning lines and the signal lines cross each other and power supply lines and ground lines supplying power to respective pixels. The driving unit includes a first scanner performing line-sequential scanning to pixels by each row by supplying a first control signal to each first scanning line sequentially, a second scanner supplying a second control signal to each second scanning line sequentially so as to correspond to the line-sequential scanning and a signal selector supplying a video signal to rows of signal lines so as to correspond to the line-sequential scanning.

Display device and electronic equipment

A display device includes: a panel in which plural pixels that emit lights according to a video signal are sectioned into plural areas; a light reception sensor that is arranged in each of the areas and outputs a light reception signal according to light emission luminance; and signal processing means. The area includes first and second pixel groups including at least one pixel and plural pixels other than the first pixel group, respectively. The signal processing means includes arithmetic means for outputting an arithmetic signal according to arithmetic operation of an offset value and a light reception value; converting means for outputting digital data according to the arithmetic signal; and correcting means for correcting the video signal according to the digital data and supplying the corrected video signal to the first pixel group.

Display device

Growing community of inventors

Kanagawa, Japan

Katsuhide Uchino