51results about How to "Suppress brightness drop" patented technology

A light-emitting device includes a pixel having a transistor provided over a substrate, and a light-emitting element. The transistor includes a single-crystal semiconductor layer which forms a channel formation region, a silicon oxide layer is provided between the substrate and the single-crystal semiconductor layer, a source or a drain of the transistor is electrically connected to an electrode of the light-emitting element, and the transistor is operated in a saturation region when the light-emitting element emits light. Further, in the light-emitting device, a gray scale of the light-emitting element is displayed by changing a potential applied to the gate of the transistor.

The present invention aims at compatibility between the improvement in luminance or suppression of deterioration in luminance and the improvement in contrast with respect to a display apparatus and a color cathode-ray tube. Each of the display apparatus and the color cathode-ray tube according to the present invention includes: a fluorescent screen having a color-filter layer and a phosphor layer, which is formed inside a panel glass having light transmissivity of 55% to 20% when a wavelength is 546 nm and a plate thickness is 20 mm and in which at least the phosphor layer is formed by the transfer method.

An apparatus comprising a circuit configured to control anode voltages of one or more adjacent pixel rows, which are adjacent to an Nth pixel row, to achieve minimal voltage differences between said Nth pixel row and said adjacent pixel rows to suppress luminance drops in an OLED display by minimizing leakage currents being introduced from adjacent pixel rows.

A light source device includes: a light source unit including an arc tube that emits a light between a pair of electrodes, and a reflector that reflects the light coming from the arc tube for emission of a source light; and a drive control section that drives the light source unit by a predetermined driving power. In the device, the drive control section performs power regulation control of reducing the driving power of the light source unit at a predetermined timing by a predetermined amount.

An organic electroluminescent panel is provided. The organic electroluminescent panel includes a substrate made of glass or transparent resin, a light emitting portion provided along a peripheral edge of the substrate, and a metal electrode. The light emitting portion comprises a cathode layer, a transparent conductive film having an extension portion, the extension portion extending toward an outer peripheral portion of the substrate and contacting the metal electrode, and an organic light emitting layer provided between the cathode layer and the transparent conductive film. The metal electrode is provided on the outer peripheral portion of the substrate to serve as an anode.

A fluorine-containing precoating (not shown) is formed to cover a phosphor particle (7) by, for example, a physical vapor deposition of a fluoride. Then, a fluorine-containing coating (8) covering the phosphor particle (7) is formed by supplying fluorine into the precoating. Thus obtained phosphor particle (7) with the coating (8) is applied in the form of a paste to a substrate (1) on each electrode (2) is between adjacent two ribs (4) to form a phosphor layer (6) including the phosphor particles (7) between the ribs (4) on the substrate (1). The substrate (1) is positioned with respect to another substrate (not shown) having electrodes thereon to form discharge spaces between the substrates. The discharge spade is filled with a discharge gas to produce a plasma display panel (PDP).

A projector includes a resin-made lamp case in which a light source lamp is fitted and a metal-made optical part holder in which an optical part is fitted. Preferably, the lamp case includes a positioning boss, the optical part holder includes a resin-made lamp case holder which accommodates the lamp case, a tubular light tunnel which shapes a form of light, a cylindrically shaped portion having a guide hole into which the positioning boss is inserted, and a resiliently deformable detent member, a metal-made light-tunnel fixing member, the detent member is substantially U-shaped and is provided integrally on the light-tunnel fixing member, the cylindrically shaped portion has a slot portion into which the detent member is inserted and which extends from an outer peripheral surface to the guide hole, and the positioning boss has a concave engaging portion which is engaged with the detent member.

A display apparatus includes a display section that includes a light source and displays a displayed image based on image data and an image correction section that corrects the image data based on correction data. The image correction section corrects a color in the image by switching the correction data between first correction data which enables correction in which a displayed color in the displayed image conforms to a reference color and second correction data which enables correction in which a displayed color in the displayed image conforms to a color within an allowable range set in advance.

An EPG extraction portion extracts EPG information; a program type decision portion decides the type of broadcast program using the extracted EPG information, and outputs a ratio modification signal to change the ratio of the image display interval to the black display interval according to the program type; a driving pulse generation portion generates a gate driver control signal which changes the write timing of a frequency-doubled image signal and frequency-doubled black display signal in one field interval, according to the ratio modification signal; and, a gate driver changes the write timing of the frequency-doubled image signal and frequency-doubled black display signal according to the gate driver control signal, to change the ratio of the image display interval to the black display interval.

An image processing apparatus includes a reference value calculating section configured to generate a value that is a weighted average of values of R data, G data, and B data of original RGB data as a reference value. Regarding each of color data such as the R data, the G data, and the B data, a value is calculated that is coincident with a value obtained by adding the value of the color data of the original RGB data to a product of a difference obtained by subtracting the reference value from the value of the color data of the original RGB data and a predetermined coefficient, as a value of the color data of RGB data after saturation expansion.

An image display apparatus according to the present invention includes: a display panel configured to display an image; a light emitting unit configured to emit light onto the display panel; an acquisition unit configured to acquire an expansion parameter to expand a reproducible color gamut, which is a range of colors that the image display apparatus can reproduce, from a reference color gamut to an expanded color gamut; and a conversion unit configured to generate output image data by performing, on input image data, color conversion processing to convert a color outside the expanded color gamut into a color within the expanded color gamut based on the expansion parameter, wherein the light emitting unit increases an emission brightness of the light emitting unit based on the expansion parameter.

There is provided a laser processing method of a sapphire substrate including preparing a sapphire substrate on which plural stacked portions spaced from each other are formed, irradiating a short pulse laser beam from a laser light source, making the laser beam irradiated from the laser light source pass through a beam shaping module, adjusting a position of a light concentrating unit or the sapphire substrate such that the laser beam is concentrated to the inside of the sapphire substrate through the light concentrating unit, and forming a phase transformation area within the sapphire substrate by irradiating the laser beam into the sapphire substrate. The laser beam is introduced into the sapphire substrate while avoiding an area where the stacked portions are formed on the sapphire substrate, so that the phase transformation area is formed within the sapphire substrate.

Provided is an addition reaction cured resin composition characterized by comprising an organic cyclic compound (A) each molecule of which contains more than two functional groups reacting with SiH base through hydrosilylation reaction; a straight chain organic organopolysiloxane (B) each molecule of which contains at least two silicon bonding alkenyl reacting with the SiH base and having at least one silicon bonding aryl; organic polysiloxane (C) each molecule of which contains at least two SiH base and at least having branch chain organic polysiloxane; and a curing catalyst (D) required by addition reaction.

A lighting apparatus of the present disclosure includes an organic light emitting diode formed by a first electrode, an organic light emitting layer, and a second electrode on a first substrate and configures the first electrode by a transparent conductive material having an electrical resistance of 2800 to 5500Ω in each pixel. Therefore, even though the first electrode and the second electrode are in contact with each other to remove the electrical resistance by the organic light emitting layer in the pixel, the overcurrent is suppressed from being applied to the pixel by the electrical resistance of the first electrode. Further, at least one conductive pattern formed of a low electrical resistance transparent conductive material which is connected to the first electrode in the pixel is disposed to suppress the degradation of the luminance by the first electrode having a high electrical resistance.

A light modulation device having an image forming area in which a plurality of pixels is arranged, and adapted to modulate incident light, and an illumination device adapted to illuminate the image forming area are provided, and the illumination device has an effective dimming area in which a plurality of dimming parts each capable of individually controlling a light intensity of the light for illuminating the image forming area is arranged, illumination areas illuminated by the light emitted from the dimming parts adjacent to each other out of the plurality of dimming parts partially overlap each other, and the light enters the light modulation device, and the position of the peak of the intensity distribution of the light emitted from the dimming part located on the outermost side of the effective dimming area is located on the outer edge of the image forming area or outside the image forming area.

A crosspiece precursor and a picture element assembly precursor are hardened at mutually different timings to form a crosspiece and a picture element assembly. For example, the crosspiece precursor is firstly hardened to form the crosspiece. After that, the picture element assembly precursor is hardened while allowing an upper end surface of the picture element assembly precursor to make pressed contact with an optical waveguide plate, by displacing an actuator element toward an actuator substrate. The picture element assembly, which is formed by hardening the picture element assembly precursor, reliably abuts against the optical waveguide plate when a display device is in a light emission state.