The present invention provides a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.

Organic light-emitting device

Provided is an organic electroluminescence device having high luminous efficiency, high heat resistance and an extremely long lifetime. The organic electroluminescence device of the present invention includes an organic thin film layer composed of one or more layers containing at least a light emitting layer is interposed between a cathode and an anode. The light emitting layer includes a compound containing a condensed ring and a luminescent metal complex capable of emitting light having a red-based color. It is preferable that the compound containing a condensed ring includes a host material, while the luminescent metal complex capable of emitting light having a red-based color includes a phosphorescent dopant.

Organic Electroluminescent Device

A thin-film, white-light-emitting diode device includes a reflective, conductive thin-film structure and a semi-transparent, conductive thin-film structure One or more thin-film layers are formed between the reflective and semi-transparent conductive thin-film structures to form two or more commonly-controlled microcavity structures The thin-film layers emit white light in response to current provided by the conductive thin-film structure Each of the two or more commonly-controlled microcavity structures has a different resonant frequency within one or more optical cavities and emits light with a smaller spectral range than the spectral range of the white-light-emitting thin-film layer(s) A combination of light emitted from the two or more commonly-controlled microcavity structures is white

Oled device having improved light output

An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a stretchable substrate, a thin film transistor (TFT) formed over the stretchable substrate and including a plurality of electrodes, an OLED electrically connected to the TFT and including a plurality of electrodes, and a plurality of interconnection lines connected to the electrodes of the OLED and the TFT. At least one of the interconnection lines is configured to move in a stretching direction and rotate an electrode selected from the electrodes of the OLED and the TFT connected to the at least one interconnection line.

Organic light-emitting diode display

A tablet device with a flexible cover is disclosed. Thin flexible display technology can be integrated into the flexible cover without affecting the overall form factor of the cover or tablet device. Adding the integrated display to the flexible cover greatly enhances the overall functionality of the tablet device.

Cover attachment with flexible display

PROBLEM TO BE SOLVED: To perform refresh of an image by refreshing an image signal at about 1 Hz frame frequency, without the occurrence of a flicker to adversely affect the display in an image display device of a memory built-in pixel system of a single-channel transistor configuration SOLUTION: A reference voltage line 108 is scanned synchronously with scanning of a scanning signal line 109; the voltage of the reference voltage line is set to be the voltage of a common electrode 120; the second transistor is set to off state during the reference voltage line is set in the common voltage for a pixel, wherein a node 125 between an image signal memory 124 and the second transistor is set in a voltage so that the second transistor becomes off, and the voltage of the image signal line is set to be high voltage level, when the voltage of the scanning signal line changes from a low voltage level to a high voltage level for the pixel, wherein the node between the image signal memory; and the second transistor is set in a voltage so that the second transistor becomes on In this pixel, the voltage of the scanning line 110 is set to be at a high level, when at least the voltage of the scanning line switches from a high level to a low level The display device, having the printed matter and ultra-high fineness display performance by a single transistor configuration and the low power consumption performance by low-frequency driving, can be realized COPYRIGHT: (C)2008,JPO&INPIT

Display device, and method of driving the same

A light-emitting device which is manufactured by a simple manufacturing method and which efficiently extracts light emitted from an emissive layer outward to improve the light extraction efficiency. The light-emitting device comprises a first electrode, a second electrode and an emissive layer disposed between them and extracts a part of light emitted from the emissive layer as radiated light. In this light-emitting device, the first electrode, the nano-structure layer for extracting the radiated light, and a gap having a refractive index lower than an average refractive index of the emissive layer and a nano-structure layer, are arranged in that order in a direction in which the radiated light is extracted.

Light emitting element and display device and illumination device using the light emitting element

A wire grid polarizer includes fine metal wires arranged parallel to one another and thus transmitting TM-polarized light. A light absorbing layer for absorbing TE-polarized light is provided on at least one of the surfaces of the wire grid polarizer.

Wire grid polarized and liquid crystal display device using the same

An object of the present invention is to realize an image display device for color display with high luminance and high contrast. In the present invention, a unit cell 111 is filled with electrophoresis ink including two kinds of particles different in chargeability and color being dispersed in transmissive solvent 107 . Voltage is applied to an opposite electrode 103 , a stacked lower electrode 104 and an upper electrode 105 and thereby electrically charged particles 108 a and charged particles 108 b are moved to a first opening 106 a and a second opening 106 b where an insulating layer 110 is provided on the lower electrode 104 and the upper electrode 105 . Thus assemblage and diffusion state of two kinds of particles are controlled. Thereby, a unit cell 111 obtains four display colors. Since the lower electrode 104 can be made to be a reflecting layer covering the entire unit cell, it is possible to make the aperture ratio large and the reflection percentage large.

Electrophoresis Display Device

An overwritable optical disk apparatus in which a finite conjugate optical system is employed. The apparatus comprises an optical head for converging diffused light from a light source onto an optical disk for performing data write/read operation, a driving unit for rotating the disk and a beam splitter for guiding the light reflected from the optical disk to a photodetector for detecting light reflected from the optical disk. Influence of disk displacement occurring in accompanying the rotation of the disk and disk eccentricity are suppressed to a minimum by encasing rotatably the optical disk within a credit card size casing which is adapted to be loaded and held stationarily in the optical disk apparatus. Thin structure of the optical head and miniaturization of the optical disk apparatus are realized with light utilization efficiency for data write/read operation being increased.

Tatsuya Sugita

Papers

Display device, and method of driving the same

Light emitting element and display device and illumination device using the light emitting element

Wire grid polarized and liquid crystal display device using the same

Electrophoresis Display Device

Optical disk apparatus and optical head