摘要:
Method reducing cross-talk between adjacent column conductors in a field emission display (10) that has a plurality of column conductors (17A, 17B, 17C, 18A, 18B, 18C) on which electron emission structures (24) are disposed. The field emission display (10), also includes a plurality of row conductors (27, 28, 29). Cross-talk is prevented by ensuring that adjacent conductors are not in an active state at the same time.
摘要:
Method and structure for reducing crosstalk between adjacent column conductors in a field emission display (50) that has a plurality of column conductors (57, 59) on which electron emission structures (64) are disposed. The field emission display (50) also includes a plurality of row conductors (67, 68). A field termination structure (58) is formed between adjacent column conductors. The field termination structure (58) attenuates a voltage glitch created by a switching column conductor, thereby preventing the voltage glitch from affecting adjacent nonswitching column conductors.
摘要:
A method for driving a field emission display (10) includes the steps of dividing a digital video word (14), which has n-bits, into N digital sub-words (16, 17), each of which has n′-bits, and sequentially converting each of the digital sub-words (16, 17) into a control signal (27, 29). The control signals (27, 29) are sequentially utilized to control drive signals (28, 38, 39, 41) applied to the field emission display (10).
摘要:
A field emission display (100) includes a cathode plate (104) having a plurality of electron emitters (112) and ballast resistors (118), an anode plate (120) having an anode (124), and a temperature compensation circuit (130) having an input (142), an output (134), and a current output (138). Input (142) is connected to unregulated voltage (132), output (134) is connected to gate (116), and current output (138) is connected to temperature sensing element (148). Preferably, temperature sensing element (148) is mounted on cathode plate (104) and matches the temperature vs. resistance characteristics of ballast resistors (118). Temperature compensation circuit (130) outputs current (220) to temperature sensing element (148) and receives ballast voltage (230) from temperature sensing element (148) as a function of temperature of cathode plate (104). Temperature compensation circuit (130) outputs gate voltage (238) to adjust electron emission current (114), and subsequently brightness for variations in temperature.
摘要:
A field emission display (100, 200, 300) and a method of making the same are disclosed. The field emission display (100, 200, 300) includes an anode (110, 210, 310) having a plurality of cathodoluminescent deposits (120, 220, 320), a back plate (185, 285, 385) including a cathode (130, 230, 330) having a plurality of field emitters (140, 240, 340) and being affixed to a cathode reinforcement member (170, 270, 370), and a plurality of side members (150, 250, 350) disposed between the anode (110, 210, 310) and the cathode (130, 230,330) and hermetically affixed thereto. The thicknesses of the anode (110, 210, 310) and the back plate (185, 285, 385) are sufficient to provide the structural support necessary to maintain the mechanical integrity of the field emission display (100, 200, 300).
摘要:
An FED (10) utilizes a semiconductor junction to control the current flow (32) through an emission tip of the FED (10). The semiconductor junction is created between a conductive layer (12) and a doped semiconductor layer (14). The conductive layer (12) can be a metal or another doped semiconductor layer in order to form the semiconductor junction.
摘要:
An electron emission device including an array of microelectronic field emission devices, each with an integrally formed capacitance, a plurality of switches, a weighting level detector, and data storage and weighting structure. In one operational method, the field emission device electron current emission is characterized and a weighting factor is calculated and coupled into the data storage and weighting means so as to provide electron emission device electron emission current in accordance with a desired emission level as prescribed by a data input signal and notwithstanding variations in electron current emission which may be present due to device fabrication.
摘要:
A digital-to-analog (D/A) signal conversion device employing scaled field emission devices to convert a digital information multi-bit input signal including data information in one of many forms such as, for example, binary or decimal, to an analog output current or voltage signal.
摘要:
A DCFL latch circuit having minimum power and device count, comprising a first field-effect transistor having a drain, a gate coupled to a first input at which a data signal is supplied, and a source. A second field-effect transistor having a drain coupled to the source of the first field-effect transistor, a gate coupled to a second input at which a logic clock signal is supplied, and a source coupled to a first supply voltage terminal. A third field-effect transistor having a drain coupled to an output of the latch circuit, a gate coupled to the drain of the first field-effect transistor, and a source coupled to the first supply voltage terminal. A fourth field-effect transistor having a drain coupled to the drain of the first field-effect transistor, a gate coupled to the output, and a source. A fifth field-effect transistor having a drain coupled to the source of the fourth field-effect transistor, a gate coupled to a third input at which the inversion of the logic clock signal is supplied, and a source coupled to the first supply voltage terminal. A load circuit coupled to the drain of the third field-effect transistor for providing current thereto and a shared load circuit coupled to the drains of the first and fourth field-effect transistors for providing current to the first field-effect transistor when the clock signal is in a first logic state and for providing current to the fourth field-effect transistor when the clock signal is in a second logic state.
摘要:
A flexible beam lead tape having three layers having trace conductors, a dielectric and a ground plane. Vias extend through the dielectric layer at the first and second ends of the electrical conductors for providing versatile connections to either ends of the conductors. The ends of the conductors may be provided with electrical connections on either or both sides of the tape and may be connected by pressure contact or by bonding. The tape also includes means for aligning the tape with a substrate to which the tape will be interconnected.