摘要:
A multi-layer flat panel display screen. The present invention includes a multi-layer flat panel display screen including a rear polarizer for polarizing incident light; a back glass structure disposed adjacent to the rear polarizer; a thin film matrix for selectively polarizing light emitted through the rear polarizer, the thin film matrix including a transistor layer having a two-dimensional matrix of individually addressable transistors; a color filter layer; and a liquid crystal layer disposed between the transistor layer and the color filter layer. The multi-layer flat panel display screen also includes a front glass structure disposed adjacent to the thin film matrix; a front polarizer for polarizing light emitted through the thin film matrix; and an anti-reflective and conductive layer for increasing light intensity and for reducing electromagnetic emissions, the anti-reflective and conductive layer composed of alternating layers of a dielectric layer and a transparent conductive layer, wherein the transparent conductive layers are grounded wherein the anti-reflective and conductive layer is disposed on the front polarizer.
摘要:
A light distributing removable door assembly (and elements thereof) for a back-lit flat panel display subsystem wherein the subsystem is for direct viewing as a monitor and having overhead projection capability. The removable door assembly provides for back-lighting via a light pipe for direct viewing when installed in the subassembly. When the door assembly is removed, the active matrix LCD is semi-transparent and can be placed over the imaging screen (viewing side down) of an overhead projector such that the LCD color image can be thus projected. The lamps that provide the back-lighting remain within the display subsystem when the door is removed and a unique optical coupling is provided between the lamps and a light pipe within the door. A specialized bi-directional light extraction pattern is used on a light pipe of the removable door to provide effective and uniform light distribution over the LCD image. A clamping mechanism is also described within the removable door for securing the layers used in the door assembly. The clamping mechanism allows a reduction in a size of a junction formed between the lighting units of the subsystem and the removable door assembly.
摘要:
A flat panel display screen apparatus with optical junction and removable backlighting assembly. An optical junction is formed between a permanently housed light source within a display assembly and a removable light pipe when inserted into the display assembly. The optical junction is formed from a reflective film attached along the long axis of the light source and extends past a side of the light source to cover a gap between the light source and the light pipe. Another reflective strip is placed along and extends past an edge of the light pipe to bridge the gap. The reflective material is used to reflect stray light into the light pipe. The present invention also includes a display subsystem with a light pipe in a removable door, the removable door assembly adapted for insertion into and removal from the display assembly and comprising a light pipe for optically coupling with the light source for illuminating the flat panel display matrix with the back-light and wherein the light source remains secured within the display assembly upon removal of the removable door assembly so that a power supply line to the light source is not disturbed upon removal of the removable door assembly and further comprising a control circuit responsive to the sensor for turning the light source on when the control signal is at a first state and for turning the light source off when the control signal is at a second state.
摘要:
An overhead projector for use with a flat panel display assembly. The specialized overhead projector provides cooling for the LCD flat panel when used in an overhead projection configuration. The projector contains a rail on which the flat panel display is positioned for alignment and to provide air passage there through for cooling. A clamping mechanism is also described for securing the flat panel display to the projector. The flat panel display is a back-lit flat panel display subsystem for direct viewing as a monitor and also has overhead projection capability. The display subsystem contains a removable door assembly which provides for back-lighting for direct viewing. When the door assembly is removed, the active matrix LCD is semi-transparent and can be placed over the imaging screen of the overhead projector such that the LCD color image can be thus projected. The lamps that provide the back-lighting remain within the display subsystem when the door is removed and a unique optical coupling is provided between the lamps and a light pipe within the door. The display subsystem contains a sensor detecting door presence and simultaneously shuts off the lamps and reverses the display image upon door removal for overhead projection capability.
摘要:
A back-lit flat panel display subsystem for direct viewing as a monitor and having overhead projection capability. The display subsystem contains a removable door assembly which provides for back-lighting when configured for direct viewing. When the door assembly is removed, the active matrix LCD is semi-transparent and can be placed over (viewing surface down) the imaging screen of an overhead projector such that the LCD color image can be thus projected. The lamps that provide the back-lighting remain within the display subsystem when the door is removed so as to not disturb the power supply lines to the lamps and a unique optical junction is provided between the lamps and a light pipe within the door. The display subsystem contains a sensor detecting door presence and simultaneously shuts off the lamps and reverses the display image (to right to left) upon door removal and turns on the lamps upon door insertion and displays the image from left to right. Within the display, a conductive (grounded) anti-reflective coating is used on the flat panel display to reduce electronic emissions. The system is also portable and can operate as a stand alone peripheral or integrated within a computer system board.
摘要:
A light distributing removable door assembly (and elements thereof) for a back-lit flat panel display subsystem wherein the subsystem is for direct viewing as a monitor and having overhead projection capability. The removable door assembly provides for back-lighting via a light pipe for direct viewing when installed in the subassembly. When the door assembly is removed, the active matrix LCD is semi-transparent and can be placed over the imaging screen (viewing side down) of an overhead projector such that the LCD color image can be thus projected. The lamps that provide the back-lighting remain within the display subsystem when the door is removed and a unique optical coupling is provided between the lamps and a light pipe within the door. A specialized bi-directional light extraction pattern is used on a light pipe of the removable door to provide effective and uniform light distribution over the LCD image. A clamping mechanism is also described within the removable door for securing the layers used in the door assembly. The clamping mechanism allows a reduction in a size of a junction formed between the lighting units of the subsystem and the removable door assembly.