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4106 results about "Flat panel display" patented technology

A flat-panel display (FPD) is an electronic viewing technology used to enable people to see content (still images, moving images, text, or other visual material) in a range of entertainment, consumer electronics, personal computer, and mobile devices, and many types of medical, transportation and industrial equipment. They are far lighter and thinner than traditional cathode ray tube (CRT) television sets and video displays and are usually less than 10 centimetres (3.9 in) thick. Flat-panel displays can be divided into two display device categories: volatile and static. Volatile displays require that pixels be periodically electronically refreshed to retain their state (e.g., liquid-crystal displays (LCD)). A volatile display only shows an image when it has battery or AC mains power. Static flat-panel displays rely on materials whose color states are bistable (e.g., e-book reader tablets from Sony), and as such, flat-panel displays retain the text or images on the screen even when the power is off. As of 2016, flat-panel displays have almost completely replaced old CRT displays. In many 2010-era applications, specifically small portable devices such as laptops, mobile phones, smartphones, digital cameras, camcorders, point-and-shoot cameras, and pocket video cameras, any display disadvantages of flat-panels (as compared with CRTs) are made up for by portability advantages (thinness and lightweightness).

Method of controlling the film properties of a CVD-deposited silicon nitride film

We have discovered that adding H2 to a precursor gas composition including SiH4, NH3, and N2 is effective at improving the wet etch rate and the wet etch rate uniformity across the substrate surface of a-SiNx:H films which are deposited on a substrate by PECVD. Wet etch rate is an indication of film density. Typically, the lower the wet etch rate, the denser the film. The addition of H2 to the SiH4 / NH3 / N2 precursor gas composition did not significantly increase the variation in deposited film thickness across the surface of the substrate. The a-SiNx:H films described herein are particularly useful as TFT gate dielectrics in the production of flat panel displays. The uniformity of the film across the substrate enables the production of flat panel displays having surface areas of 25,000 cm2 and larger.
Owner:APPLIED MATERIALS INC

Method and apparatus for managing and uniformly maintaining pixel circuitry in a flat panel display

InactiveUS20080048951A1Accurate aging correctionStatic indicating devicesQuantum efficiencyDisplay design
The present invention describes a method and apparatus for measuring the voltage and current characteristics of the OLED pixel as it ages and correlating the measured data to the decrease in quantum efficiency and changes in OLED impedance over the life of the OLED, so that corrections can be made to the image drive system to prevent image sticking and color point drift. The method and apparatus of the present invention do not require any additional circuitry or changes in the display design. The circuitry of the present invention is implemented in the display driver integrated circuit (IC) chips. The basis of the invention is the luminance-current-voltage (LIV) curves which characterize the OLED materials over their life time. A series of these curves are stored in memory representing a OLED material at various ages. The apparatus of the present invention is used to measure driver voltages and currents for a pixel having an OLED, which measurements are then used to extract the voltage current curve for the OLED at any point in time. The extracted curve is compared to the aging curves stored in memory to determine the aging curve that best describes the measured present voltage current characteristic of the pixel. That aging curve is used to drive the pixel.
Owner:LEADIS TECH

Electronically addressable microencapsulated ink and display thereof

We describe a system of electronically active inks which may include electronically addressable contrast media, conductors, insulators, resistors, semiconductive materials, magnetic materials, spin materials, piezoelectric materials, optoelectronic, thermoelectric or radio frequency materials. We further describe a printing system capable of laying down said materials in a definite pattern. Such a system may be used for instance to: print a flat panel display complete with onboard drive logic; print a working logic circuit onto any of a large class of substrates; print an electrostatic or piezoelectric motor with onboard logic and feedback or print a working radio transmitter or receiver.
Owner:E INK CORPORATION

Thin film transistor, method of manufacturing the same and flat panel display device having the same

A thin film transistor (TFT) using an oxide semiconductor as an active layer, a method of manufacturing the TFT, and a flat panel display device having the TFT include a gate electrode formed on a substrate; an active layer made of an oxide semiconductor and insulated from the gate electrode by a gate insulating layer; source and drain electrodes coupled to the active layer; and an interfacial stability layer formed on one or both surfaces of the active layer. In the TFT, the interfacial stability layer is formed of an oxide having a band gap of 3.0 to 8.0 eV. Since the interfacial stability layer has the same characteristic as a gate insulating layer and a passivation layer, chemically high interface stability is maintained. Since the interfacial stability layer has a band gap equal to or greater than that of the active layer, charge trapping is physically prevented.
Owner:SAMSUNG DISPLAY CO LTD

System And Method For Camera Imaging Data Channel

A system and method for using cameras to download data to cell phones or other devices as an alternative to CDMA / GPRS, BlueTooth, Infrared or cable connections. The data is encoded as a sequence of images such as 2D bar codes, which can be displayed in any flat panel display, acquired by a camera, and decoded by software embedded in the device. The decoded data is written to a file. The system and method meet the following challenges: (1) To encode arbitrary data as a sequence of images. (2) To process captured images under various lighting variations and perspective distortions while maintaining real time performance. (3) To decode the processed images robustly even when partial data is lost.
Owner:LIU XU +2

System and method of switching viewing orientations of a display

The present technique provides a system and method for automatically switching viewing orientations of a display in response to physical rotation of the display. The display is rotatably coupled to a base structure via a rotatable mechanism, which has one or more angular switches / sensors that sense the physical orientation of the display and trigger a change in the viewing orientation of the display. The display may be a stand-alone flat-panel display or it may be incorporated into a portable electronic / computing devices, such as a tablet computer. Moreover, the base structure may embody a display support, a port replicator, a docking station, or any other suitable structure having a rotational adjustment mechanism.
Owner:HEWLETT PACKARD DEV CO LP

Display Capable Electrowetting Light Valve

The invention relates to light transmissive, transflective, or reflective flat panel display devices and, more specifically, to light emissive flat panel displays constructed from high performance electrowetting light valve (ELV) devices (10a-g). An array of ELV devices (10a-g) is mounted on or adjacent to a backlight (11), employing a reflector (13) allowing for improved transmission. The backlight (11) may be partially diffusely reflective or translucent as to also allow for creation of a transflective display panel.
Owner:UNIVERSITY OF CINCINNATI

Self-balancing adjustable flat panel mounting system

A self-balanced adjustable mounting system for a flat panel display. A display interface having a hollow, semi-spherical shell portion is attached to the flat panel display. The semi-spherical shell is formed with a generally constant radius of curvature. The center of the radius of curvature is disposed proximate the center of gravity of the flat panel display with the display interface attached. The display interface is received in a guide structure that has a bearing portion engaging the outer surface of the semi-spherical shell, and a second bearing portion engaging the inner surface of the semi-spherical shell through an aperture formed in the semi-spherical shell. The semi-spherical shell is guided between the first and second bearing portions so that the flat panel display and device interface are generally rotatable about the center of the radius of curvature of the semi-spherical shell. The display is self balancing in virtually any position in the range of travel of the device due to the location of the center of rotation proximate the center of gravity.
Owner:LEGRAND AV INC

Electronically addressable microencapsulated ink and display thereof

A system of electronically active inks is described which may include electronically addressable contrast media, conductors, insulators, resistors, semiconductive materials, magnetic materials, spin materials, piezoelectric materials, optoelectronic, thermoelectric or radio frequency materials. We further describe a printing system capable of laying down said materials in a definite pattern. Such a system may be used for instance to: print a flat panel display complete with onboard drive logic; print a working logic circuit onto any of a large class of substrates; print an electrostatic or piezoelectric motor with onboard logic and feedback or print a working radio transmitter or receiver.
Owner:E INK CORPORATION

ALD reactor and method with controlled wall temperature

The present invention relates to improved methods and apparatus for atomic layer deposition (ALD) of thin films on substrates such as wafers and flat panel displays. The invention provides an ALD reactor comprising a first temperature regulating system to control the temperature of the substrate and a second temperature regulating system to independently control the temperature of the reaction chamber walls. The invention also provides a method for ALD of a film onto a substrate in a reaction chamber, in which the temperature of the substrate is maintained to maximize ALD on the substrate while the temperature of the reaction chamber walls is set to minimize film growth thereon, whether by ALD, condensation, physisorption or thermal decomposition. The temperature of the walls may be maintained at the same temperature as the substrate, or higher or lower than the substrate temperature, depending upon the particular reaction being used.
Owner:ASM INTERNATIONAL

Optical device utilizing optical waveguides and mechanical light-switches

An optical device consists of one or more optical waveguides and mechanical light switches 30. When a light switch 30 is turned on, it extracts light beam 62a from a waveguide core 20 and redirect the light beam 62b into free space, it redirects an incoming light beam 80 from free space and injects the light beam 80a into the waveguide core 20, or it performs both functions at the same time, depending on specific applications. On and off states of a light switch 30 are achieved by pulling the light switch 30 into a close vicinity of the waveguide core 20 and by pushing the light switch 30 away from the waveguide core 20, respectively. An interactive fiat-panel display can be built based on this invention. A plurality of parallel channel waveguides forms a display panel. An array of light beams 62a, injected from an array light source 60, propagates along waveguide cores 20 until reaches a location where a light switch 30 is turned on. At this location, the light switch 30 redirects the light beams towards a viewer. An image is produced when the light switches 30 are turned on sequentially while the light-intensity distribution on the array light source 60 is synchronically updated. The panel display is capable of responding to an input optical signal by detecting an incoming light beam 80 from a light pen 100. An array of photodetectors 81 is used to identify the location of the incoming light beam 80 on the display panel and a computer is used to execute a corresponding action accordingly.
Owner:LIFE TECH CORP
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