摘要:
Disclosed is a semiconductor micro-emitter array for use in a full-color microdisplay. Each pixel includes three vertically-stacked red, green, and blue micro-emitters which minimizes pixel size. The microdisplay may be exclusively based on Group III-nitride semiconductors, with differing indium concentrations in three respective InGaN/GaN active regions for emitting the three RGB colors. Alternatively the microdisplay may be based on hybrid integration of InGaN based III-nitride semiconductors for blue and green emissions, and AlGaInP based (e.g., Group III-V) semiconductors for red emissions.
摘要:
Disclosed is a semiconductor micro-emitter array for use in a full-color microdisplay. Each pixel includes three vertically-stacked red, green, and blue micro-emitters which minimizes pixel size. The microdisplay may be exclusively based on Group III-nitride semiconductors, with differing indium concentrations in three respective InGaN/GaN active regions for emitting the three RGB colors. Alternatively the microdisplay may be based on hybrid integration of InGaN based III-nitride semiconductors for blue and green emissions, and AlGaInP based (e.g., Group III-V) semiconductors for red emissions.
摘要:
A highly reliable, high voltage AC/DC LED device with integrated protection mechanism is disclosed. The protection element can be a current-limiting resistor, monolithically integrated on LED chip, or a discrete resistor assembled in the lamp package or submount. The protection elements may also include other parts integrated on a submount.
摘要翻译:公开了一种具有集成保护机构的高可靠性高压AC / DC LED器件。 保护元件可以是单片集成在LED芯片上的限流电阻器,或组装在灯组件或底座中的分立电阻器。 保护元件还可以包括集成在基座上的其它部件。
摘要:
Disclosed are detector devices and related methods. In an AlN EUV detector a low temperature AlN layer is deposed above an AlN buffer layer. In one embodiment, the low temperature AlN layer is deposed at about 800° C. Pulsed NH3 is used when growing an AlN epilayer above the low temperature layer. Numerous embodiments are disclosed.
摘要:
A transistor with improved device characteristics includes a substrate, a first buffer layer deposited on the substrate, a highly resistive epilayer deposited on the buffer layer, a second epilayer deposited on the highly resistive epilayer, a channel layer deposited on the second epilayer, an AlGaN alloy epilayer deposited on the channel layer, and source, gate, and drain connections deposited on the AlGaN alloy epilayer. The highly resistive epilayer may include AlGaN, InAlGaN, AlBN, or AlN compositions. The channel layer may include InGaN, graded InGaN, multilayers of InGaN and GaN, or GaN.
摘要:
Disclosed are detector devices and related methods. In an Al EUV detector a low temperature AlN layer is deposed above an AlN buffer layer. In one embodiment, the low temperature AlN layer is deposed at about 800° C. Pulsed NH3 is used when growing an AlN epilayer above the low temperature layer. Numerous embodiments are disclosed.
摘要:
A highly reliable, high voltage AC/DC LED device with integrated protection mechanism is disclosed. The protection element can be a current-limiting resistor, monolithically integrated on LED chip, or a discrete resistor assembled in the lamp package or submount. The protection elements may also include other parts integrated on a submount.
摘要翻译:公开了一种具有集成保护机构的高可靠性高压AC / DC LED器件。 保护元件可以是单片集成在LED芯片上的限流电阻器,或组装在灯组件或底座中的分立电阻器。 保护元件还可以包括集成在基座上的其它部件。
摘要:
An active matrix microdisplay system is provided. The microdisplay system includes an array of micro-emitters. The microdisplay system also includes an array of CMOS driving circuits. Each of the CMOS driving circuits is coupled to a respective micro-emitter for controlling current to each respective micro-emitter. Each driving circuit includes metal-oxide-semiconductor field-effect transistor (MOSFET) devices, where the MOSFET devices comprise p-type metal-oxide-semiconductors (PMOSs) or n-type metal-oxide-semiconductors (NMOSs).
摘要:
An AC/DC indicator lamp based on an array of micro-LEDs may be powered by a standard high voltage AC or DC power source. The indicator lamp has a low power consumption. The micro-LEDs are serially connected on a substrate with the total device area and power consumption compatible with a standard DC low voltage LED. A plurality of indicator lamps may be connected together in parallel to present a string of indicator lamps.
摘要:
A single-chip integrated LED particularly adapted for direct use with a high voltage DC or AC power sources comprises a plurality of electrically isolated LEDs on a generally transparent substrate and bonded to electrically conductive elements on a thermally conductive mount. A reflective coating may be applied to the area between LEDs.