Abstract: To provide a display device, a color filter, and an electronic apparatus, which can prevent the deterioration of resolution and display quality and can improve display characteristics. There is provided a display device comprising a plurality of dots in a unit pixel. The dots includes first to third dots having first to third peak wavelengths in the wavelength characteristics of emitted light, and a fourth dot having a fourth peak wavelength which is located between the first peak wavelength and the second peak wavelength, and has the fourth peak wavelength which is closer to the second peak wavelength than to the first peak wavelength, in the wavelength characteristics. The fourth dot is arranged not to be adjacent to the second dot, but is arranged to be adjacent to the first dot or the third dot.

Abstract: There is disclosed a liquid crystal display apparatus including a main body and a swivel mechanism, where the main body is capable of smoothly swiveling. A countersunk hole is formed in a bottom plate member as follows: When a through-hole for inserting a screw is formed in a metal sheet to be a bottom plate member, there is also concurrently formed an accommodating hole for accommodating flow of the material forming the metal sheet upon plastic forming or pressing which is performed subsequently for forming a countersink, and then the countersink is formed at an open end of the through-hole by pressing. It is preferable that a plurality of the accommodating holes are formed around the through-hole.

Abstract: A liquid crystal television 100 displays an image on a liquid crystal display by transmitting a light source from a backlight unit 10. The backlight unit 10 drives two cold-cathode tubes 13a, 13b as the backlight 13 at the high frequency voltages each with different polarity generated by a self-excited inverter circuit 11 to generate a light source. The backlight unit 10 connects an inter-lamp coil L2 between two U-shaped cold-cathode tubes 13a, 13b to form a series circuit, and further connects capacitors C5, C6 in parallel with the cold-cathode tubes 13a, 13b.

Abstract: The invention provides a two-panel color management system for projection display applications, wherein color sequencing is accomplished using achromatic beam switching and static color separation. In a preferred embodiment, a liquid-crystal polarization switch alternates a polarization of an input light beam between two orthogonal states. A polarization beam splitter directs the beam comprising three primary color components alternately along a first and second paths, wherein first and second different secondary color filters are disposed for forming first and second secondary colored beams, each having two different primary color components. A dichroic color separator alternately receives the first and second secondary colored beams, separates their primary color components and directs them to first and second imager panels. A beam combiner combines the first polarized primary color beam from the first imager and the second polarized primary color beam from the second imager to form a projection beam.

Abstract: A control circuit of an image display apparatus controls an output of video signals so that a non-display period TC set between an end of display of images corresponding to a first input video signal for one vertical scan and a start of display of an image corresponding to a second input video signal for the next one vertical scan can satisfy a relationship: TC>(TA?TB)/N, where TA denotes a period between the start of the display of the images corresponding to the first input video signal and the start of the display of the image corresponding to the second input video signal, TB denotes a sum of display periods for the respective images corresponding to the first input video signal, and N denotes the number of the images corresponding to the first input video signal.

Abstract: A backlight module that includes a lamp and a single side driving inverter that is coupled to one end of the lamp. The single side driving inverter is configured to control an operating current of the lamp to be within 80% to 100% of a saturation luminance current. The lamp has a characteristic such that when the operating current is lower than the saturation luminance current, the lamp luminance increases as the operating current increases, and when the operating current is substantially equal to or higher than the saturation luminance current, the lamp luminance does not increase as the operating current increases.

Abstract: A display apparatus includes a control circuit for outputting a timing signal for determining a predetermined time period and a clock signal counted to determine the length of a modulation signal. The display apparatus is capable of switching between a first state in which a first timing signal and a first clock signal are output, and a second state in which a second timing signal and a second clock signal are output. The first time period is shorter than the second time period, wherein the first time period is the predetermined time period determined by the first timing signal and the second time period is the predetermined time period determined by the second timing signal. The frequency of the first clock signal is higher than the frequency of the second clock signal.

Abstract: A driving circuit for display elements, comprises a modulation circuit that outputs a modulating signal to be applied to wiring to which display elements are connected; and an output circuit that serializes modulation data including height value data for determining a height value of at least part of waveform of the modulating signal and pulse width data for determining a pulse width of at least part of waveform of the modulating signal so that the modulation data can be transmitted to the modulation circuit by transmission paths, the number of which is smaller than the number of bits of the modulation data, and outputs the serialized modulation data.

Abstract: A broadcasting receiving apparatus includes a liquid crystal display device including a liquid crystal cell in which a liquid crystal layer that is twist-aligned at 90° and sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the cell therebetween so that their absorption axes are set in parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: The objective of one embodiment of the present invention is to provide a liquid crystal display device which is brighter, has a wider range of viewing angles, has a faster response speed, and has improved moving image quality. When a sub pixel performs dark display, a sub frame processing section sets video data for a sub frame at a value falling within a range for dark display, and controls the luminance of the sub pixel by increasing or decreasing video data for a sub frame. When the sub pixel performs light display, the sub frame processing section sets the video data at a value falling within a range for light display, and controls the luminance of the sub pixel by increasing or decreasing the video data. The value within the range for dark display indicates luminance brighter than black, and the sub frame processing section outputs this value as the video data, even if video data for a sub pixel indicates black display.

Abstract: A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer; a backlight apparatus arranged at one side of the couple of substrates of the liquid crystal display element; a polarizer arranged between the liquid crystal display element and the backlight apparatus; a luminous intensity distribution control element arranged at the other side of the couple of substrates of the liquid crystal display element; an analyzer arranged between the liquid crystal display element and the luminous intensity distribution control element, wherein the luminous intensity distribution control element comprises a transparent base member, a plural lenses arranged on the transparent base member, and a light absorbing layer having small opening portions substantially at focal positions of an individual lens of the plural lenses, and the transparent base member is constituted of a transparent body substantially optically isotropic or a transparent body having uniaxial optical anisotro

Abstract: An OSD display unit generates test pattern data to spread image patterns stored in a storage unit as digital font data for OSD display so as to match the number of pixels of a liquid crystal panel and sends the test pattern data to a panel processor for display on the liquid crystal panel.

Abstract: A point at which the luminance varies between successive frames is detected with respect to an input image signal whose one-frame period is represented by a given gradation level. In a frame in which the luminance has just varied (i.e., in a post-change frame), the gradation level is corrected so that the lack of response of an image display panel is remedied (overshoot driving). In at least one embodiment, a sub-frame signal is generated in accordance with the signal whose gradation level has been corrected, so that an output gradation level to be outputted to the image display panel is obtained.

Abstract: In a controller IC in which a decoder for decoding a video signal from a tuner and a controller for controlling a liquid crystal display section for displaying video of a video signal decoded are incorporated into a one-chip semiconductor, a signal selection section is provided between the decoder and the controller. The signal selection section switches a video signal a decoded by the decoder and a test pattern signal inputted from a pattern generator in response to a mode switching signal, and selects the video signal in a normal mode and the test pattern signal in a test mode. The controller displays predetermined pattern video on the liquid crystal display section based on the test pattern signal selected by the signal selection section in the test mode.

Abstract: A liquid crystal display apparatus including a tilt mechanism, which is capable of preventing an inadvertent insertion of a finger of a user in a groove of a bracket of the tilt mechanism even while a cover for concealing the bracket is removed, wherein provided is a washer-like member or inadvertent-insertion preventer which has a through-hole or perforated portion through which a pawl formed in a mainbody bracket or one of two brackets is inserted, and is attached to the pawl at a position to contact a stand bracket or the other of the two brackets, by inserting the pawl through the through-hole. The washer-like member is preferably made of a plastic and sandwiched between the two brackets.

Abstract: An audio visual system has a housing with a video display and one or more speakers. The speakers are housed in cavities which limit dispersion of the sound generated, and the video display is preferably a directional LCD display. The housing is preferably mounted to a base by an adjustable arm having passages to accommodate enclosed wiring. One adjustable arm has segments joined by dual-pivot joints, while another has segments joined by single pivot joints. In both types of arms, the frictional resistance of the joints can be adjusted. Preferably, the elements of the arm are strung onto the wiring prior to assembly. The housing can also contain a light source to provide a reading light.

Abstract: There is provided a liquid crystal television and a plasma television that can adapt to various destinations and are resistant to noise in view of the difference of circuit configurations between a liquid crystal television and a plasma television. A video signal processing circuit is formed on a digital board, an input and output circuit is formed on a jack board, an audio signal processing circuit and a power supply circuit are formed on an analog board, and a rectifier circuit and an inverter circuit are formed on an inverter board. Further, on the back of the LCD, the inverter board is disposed in a vertically oriented shape in the left, the analog board is disposed in the lower center, the digital board is disposed in the upper center adjacent to the analog board, and the jack board is disposed in the upper right.

Abstract: The present invention prevents deterioration of image quality by lowering a heat value of a data driver connected to a liquid crystal display panel. In a liquid crystal display device, a pixel which connects a TFT thereof to one of two neighboring scanning signal lines and a pixel which has a TFT thereof connected to the other scanning signal line are alternately arranged in the extending direction of the scanning signal lines, two pixels which are arranged close to each other with one video signal line sandwiched therebetween have respective TFTs connected to the video signal line, and the connection relationship between the TFT of each pixel and the scanning signal line is inverted for every pair of two pixels arranged in the extending direction of the video signal lines.

Abstract: An analog-to-digital converter converts a video signal into a digital video signal consisting of N bits and outputs the converted signal. A correction value memory stores correction data consisting of M bits which is used to correct the difference in luminance between display pixels on a display. A multiplier multiplies the video signal consisting of N bits output from the analog-to-digital converter by the correction data consisting of M bits stored in the correction value memory, and outputs a video signal consisting of L bits with which the difference in luminance between display pixels on the display is corrected.

Abstract: A hollow sphere with a scattering (e.g., white diffusive) interior surface directs light input from at least one input light source to an exit. In one embodiment, an internal hot mirror and phosphor are positioned to intercept the input light on which visible light is reflected and ultraviolet light is directed to the phosphor for conversion to visible light. The exit has a reflective polarizer that passes light of a selected polarization to an output. Light of other polarization(s) is reflected back into the sphere where it becomes unpolarized because of reflections and may eventually be returned to the exit at the selected polarization.

Abstract: A liquid crystal receiving apparatus (1) according to the invention doubles the number of frames by doubling a vertical scanning frequency set for a received video signal (12), and adjusts a gain for each of frames added by the doubling (14). A moving image blur is prevented by reducing the gain, and a flicker is prevented by increasing the gain. The gain is adjusted automatically or through a manipulation made by a user in accordance with contents of an image to be displayed.

Abstract: A portable electronic device is provided that includes an optical display, a display controller for presenting display data to the optical display in order to display the display data; and an accelerometer operatively coupled to the display controller. The display controller presents the display data to the optical display as a function of motion of the portable electronic device as sensed by the accelerometer.

Abstract: Disclosed are an apparatus and a method for compensating for an interlaced-scan type video signal for stably displaying the video signal in the LCD panel. An aft part of 264th data of a first field and a fore part of 23rd data of a second field are stored in memories. A present video signal is determined whether the present video signal is a first field signal or a second field signal through an equalizing pulse period. If the present video signal is the first field signal, a fore part of 23rd data is copied to the first data field, and if the present video signal is the second field signal, the aft part of the 263rd data is added to the second field data. In case of a PLA-type video signal, first data represent 23rd data, and final data represent 313rd data.

Abstract: Disclosed are a liquid crystal display unit and a liquid crystal TV set, each of which has a sequence circuit 13 that includes first, second, and third voltage output units. The sequence circuit 13, upon the turning-on of the power to the liquid crystal display unit 11, supplies the first, second, and third output voltages to a liquid crystal display panel 11c in this order and stops supply of the third, second, and first output voltages in this order upon the turning-off of the power to the liquid crystal display unit 11. Consequently, the display screen is prevented from the noise that is otherwise generated on the screen.

Abstract: Disclosed herein is a video signal process circuit that includes a control circuit having a level detection circuit and a dynamic range switch circuit. In the control circuit and a microcomputer, an average luminance of an image displayed on a liquid crystal panel via a liquid crystal driver circuit is detected. When the average luminance is equal to or over a level YSmax, an upper limit of the dynamic range is expanded, so that a signal level of a composite video signal in which white blur can occur can be digitized to a digital signal without being limited by the upper limit gradation, reducing the white blur of the image to improve the quality of the image.

Abstract: A panel-type television whose colors and image qualities of OSD portions are kept intact and the qualities of images other than the OSD portions are adjusted is provided. The panel-type television includes an image quality adjustment circuit 30a that performs a specified image quality adjustment processing on input image signals; a delay circuit 30b that delays input image signals by the time needed for the image quality adjustment circuit 30a to perform image quality adjustment processing; and a switching 30c that switches between the image quality adjustment circuit 30a and the delay circuit 30b so that image signals are input to either of the circuits according to the control of a microcomputer 60, wherein the microcomputer 60 inputs image signals for OSD display areas to the delay circuit 30c and image signals other than those for OSD display areas to the image quality adjustment circuit 30a.

Abstract: A video system that performs TV signal decoding, deinterlacing, and de-motion-blurring for progressive scan flat panel display is introduced. The system embeds a frame buffer and a scaler for conducting format and resolution conversions for display panels of different sizes. The output of the scaler is sent to a de-motion-blur processor for reducing the blurriness due to the motion of image objects and the slow response time of flat panel display devices. The de-motion-blur processor gets the motion and noise indication signal from scaler or the pre-frame-buffer video processor. Based on the motion and noise information and the information of temporal difference, the de-motion-blur processor performs over driving for the display panel interface and improves the rising and falling response time of the flat panel display. The decoding, deinterlacing, and de-motion-blur processing share the same frame buffer controller so the entire system can be optimized in cost and performance.

Abstract: A signal processing device, a liquid crystal display, a system for testing the liquid crystal display and a method of driving the liquid crystal display are disclosed. The signal processing device includes an external signal provider providing an external clock signal and an external driving voltage and outputting a check signal to an outside of the signal processing device, a memory unit storing reference data corresponding to the external clock signal and a checking unit comparing the external clock signal with the reference data and feeding back the check signal to the external signal provider according to the result of the comparison. The check signal represents whether the external clock signal has been inputted to the external signal provider without any error.

Abstract: In a configuration including a liquid crystal panel, a gate driver for driving a gate line of the liquid crystal panel, a data driver for driving a data line of the liquid crystal panel, a cold cathode tube used as a light source of a back light part for illuminating the liquid crystal panel from the back, a boosting circuit for driving and lighting the cold cathode tube, and a first DC power source part for generating a first DC output used as an operating power source of the data driver and also used as an operating power source of the boosting circuit, a regulator circuit for eliminating a noise component caused by the boosting circuit is inserted into a path of the first DC output ranging from the first DC power source part to the data driver.

Abstract: A liquid crystal television receiver includes a DC power supply to generate and output tuning DC power, a receiving portion, a display portion, and a series regulator. Preferably, the receiving portion is fed the tuning DC power and receives a video signal, the display portion includes an active-matrix liquid crystal panel, a gate driver to generate a gate-on signal and drive a gate line and a data driver to drive a data line, allowable ranges of voltage of the tuning DC power and the gate-on DC power share a common range in which a voltage of the tuning DC power is set, the tuning DC power is fed to the gate driver, and the series regulator is provided on at least one of power supply paths to feed the tuning DC power from the DC power supply to the gate driver and to the receiving portion, and removes noise component.

Abstract: A ceiling suction type digital television device includes a wireless signal received through an aerial, whereupon the wireless signal having a carrier wave is converted into a general signal by means of a demodulator decoding unit and transmitted to a sound processing unit, a video signal processing unit and a sub-title processing unit, whereat encoding and modulation of each respective signal arriving at each of the processing units is carried out, whereafter the signals are sent to an images and sounds output unit. Signal communication coordination is implemented by means of a central processing unit. Furthermore, a video signal circuit board is connected to a connecting terminal of a display circuit board through a connecting cable, further connected to a connector of a ceiling suction type display unit through a connecting cable, whereat the images, sounds and video are televised through a liquid crystal display.

Abstract: A LCD-TV capable of receiving two or more display signals is discloses. An indicator is provided with the LCD-TV to emit light of a specific color corresponding to a display signal when the display signal is displayed on a LCD panel of the LCD-TV.

Abstract: This specification discloses a polarizing. element for dividing light into first and second polarized lights differing in polarized state from each other by a polarizing dividing surface, directing the first polarized light in a first direction, reflecting the second polarized light by a reflecting surface and directing it in the first direction, and varying the polarized state of at least one of the first and second polarized lights to thereby make the polarized states of the first and second polarized lights coincident with each other, characterized in that the polarizing dividing surface is disposed on one surface of a plane parallel plate and the reflecting surface is disposed on the other surface of the plane parallel plate, and the light enters obliquely from the one surface or the other surface. The specification also discloses a polarizing conversion unit provided with such polarizing element, and a projector provided with such polarizing conversion unit.

Abstract: A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer between a couple of substrates; a backlight apparatus arranged at one side of the couple of substrates; a polarizer arranged between the liquid crystal display element and the backlight apparatus; a luminous intensity distribution control element arranged at the other side of the couple of substrates; an analyzer arranged between the liquid crystal display element and the luminous intensity distribution control element, wherein the luminous intensity distribution control element comprises a transparent base member, a plural lenses arranged on the transparent base member, and a light absorbing layer having small opening portions substantially at focal positions of an individual lens of the plural lenses, and the transparent base member is constituted of a transparent body substantially optically isotropic or a transparent body having uniaxial optical anisotropy.

Abstract: The present application discloses a display unit in which a display unit is supported by a support. Particularly, in the configuration in which are provided a display section including a face plate and a rear plate arranged opposite to the face plate and a support supporting the display section, the display section is bonded to and supported by the support.

Abstract: An APL detection unit detects the APL for each unit field time period of an input video signal, and a light source control data production unit produces, depending on the results of the APL detection, a light source control signal at a minimum level which can stably drive a light source when the APL is 0% up to a predetermined value A1, a light source control signal at a maximum level which can stably drive the light source when the APL is a predetermined value A2 up to 100%, and a light source control signal which dynamically varies depending on the APL when the APL is between the predetermined value A1 and the predetermined value A2, to drive the light source on the basis of the light source control signal. As a result, it is possible to mitigate the lack of a contrast feeling and the occurrence of a floating blackness, as well as to improve the reliability of the light source.

Abstract: A scan-driving circuit for making a high image quality and a low power consumption compatible. This scan-driving circuit comprises: a shift register including first to Nth flip-flops corresponding to first to Nth scan lines, respectively, and connected in series; a level conversion section including first to Nth level shifter circuits for shifting the voltage levels of the individual output nodes of the first to Nth flip-flops individually; and a scan line drive section including first to Nth drive circuits for driving the first to Nth scan lines sequentially in a manner to correspond to the potentials of the output nodes of the first to Nth level shifter circuits. The first to Nth scan lines are divided into a plurality of blocks, for which the scan lines are individually arranged. The first to Nth drive circuits scan and drive the scan lines in the designated block at a time of a partial display in which the display and drive are done on a block basis.

Abstract: A method for operating a liquid crystal display having a panel with a back light includes applying a first gate signal starting a real data period followed by a second gate signal starting a black data period sequentially to gate lines of the panel, applying actual picture data signals to data lines of the panel during the real data period and reset data signals to the data lines of the panel during the black data period to drive cells of the panel during a frame along a gate line and controlling a ratio of the real data period to the black data period for a subsequent frame.

Abstract: A multi channel video engine (10) for accepting, dividing, modifying and recombining light to project an image. A housing (12) encloses an optical assembly (28) having a dichroic mirror assembly (58) and a color cube (60). A plurality of LCD assemblies (30) accept light from the dichroic mirror assembly (58), modifies it, and reflects it to the color cube (60). A lens assembly (16) is affixed to a bulkhead (24) of the housing (12) using a lens cradle (14) and lens retainer (18). An output prism (54) aligns light onto a second plane (70) to coincide with an optical axis (72) of the lens assembly (16).

Abstract: Method and apparatus for the conversion or generation of a video signal intended to be displayed on an image display with different luminance response times for rise and fall. The conversion or generation of the video signal is so that motion artefacts which are caused by the difference in luminance response times for rise and fall such as large area luminance jumps, large-area flicker and faulty temporary large-area luminance are fundamentally cancelled in the displayed image.

Abstract: A display includes a front panel and a back panel with a light control material in between. One of the panels includes a rigid substrate, for example made of glass or rigid plastic. The other of the panels includes a flexible substrate, for example made of a flexible plastic film. The panel with the flexible substrate may be made by a roll-to-roll process, with various fabrication operations formed while the flexible substrate is still part of a web of material. The panel with the rigid substrate may be separately fabricated, then combined with the other panel on the web through a pick and place operation that accurately locates the front panel relative to the back panel. The display may be any of a variety of displays, such as liquid crystal displays (LCDs), and electroluminescent displays, such as polymer light emitting devices (PLEDs) and organic light emitting devices (OLEDs).

Abstract: There is provided a display device in which an optical efficiency is improved using a color drum. The display device includes a road lens for totally reflecting an incident light and changing a path of the light. The display device further includes a color drum having a plurality of cell filters arranged cylindrically to face the path of the light outputted from the road lens. Here, the cell filters are in a linear shape. Since the light reflected by the color drum is not lost to the outside, the light efficiency can be enhanced. According to the invention, the linear scroll is possible due to the cell filters that are in the linear shape, so that signal process algorithm can be simplified.

Abstract: In a configuration including a liquid crystal panel, a gate driver for driving a gate line of the liquid crystal panel, a data driver for driving a data line of the liquid crystal panel, a cold cathode tube used as a light source of a back light part for illuminating the liquid crystal panel from the back, a boosting circuit for driving and lighting the cold cathode tube, and a first DC power source part for generating a first DC output used as an operating power source of the data driver and also used as an operating power source of the boosting circuit, a regulator circuit for eliminating a noise component caused by the boosting circuit is inserted into a path of the first DC output ranging from the first DC power source part to the data driver.

Abstract: The present invention provides an image processing circuit for use in an electrooptic device having a plurality of scanning lines, a plurality of data lines, switching elements which are respectively disposed in correspondence with intersections between the scanning lines and the data lines, and pixel electrodes which are electrically coupled to the corresponding switching elements.

Abstract: A LCD-TV capable of receiving two or more display signals is discloses. An indicator is provided with the LCD-TV to emit light of a specific color corresponding to a display signal when the display signal is displayed on a LCD panel of the LCD-TV.

Abstract: A liquid crystal display according to the present invention can prevent interference fringe on a display panel due to a switching noise of a DC/DC converter, therefore a high-quality image can be displayed. Either of input signals for a timing control circuit is also supplied to a PLL circuit and the DC/DC converter is controlled by an output signal of the PLL circuit, thereby enables to synchronize a switching frequency of the DC/DC converter and control signal.

Abstract: An active matrix display comprises an active matrix 1 and a digital data driver 30 formed on a common substrate 100 by a common integration process. The driver 30 comprises a serial to parallel converter 20 having m registers forming at least one set for storing display data for m picture elements, where m is less than the number M of data lines of the matrix 1. The outputs of the registers are connected to m digital/analogue converters 21 whose outputs are connected to m bus lines 50 of an m phase analogue driver 22 in the form of a switching network. The switching network connects in turn groups of m physically adjacent data lines of the matrix 1 to the m bus line, respectively.

Abstract: A portable computer system incorporating a rear projection display. The rear projection display is housed in a display enclosure that is movable between an open and closed position, and incorporates either a pliable or deformable projection surface or a projection surface formed of multiple rigid components. When the display enclosure is open, the projection surface is configured to expand beyond the form factor dimensions of the base portion of the portable computer. In the preferred embodiment of the invention, the projection surface is a pliable material that can be safely deformed or collapsed within the display enclosure when it is closed. The rear projection display thereby allows the effective viewing area of a portable computer display to be increased without negatively impacting the form factor dimensions or weight of the portable computer.

Abstract: A detachable backlight module of LCD TV comprises a casing with a detaching opening, a screen disposed in the front section of the casing, a detachable lamp rack disposed behind the screen and corresponding to the detaching opening, and a main circuit board disposed behind the detachable lamp rack; the main circuit board drives an illumination unit on the detachable lamp rack to evenly diffuse the light produced by the illumination unit through the screen to a plane light source and the detachable lamp rack can be detached from the detachable opening easily, and the foregoing constitute the detachable backlight module of a LCD television.

Abstract: A projection display system includes a light source emitting a randomly polarized light and a polarization recapture system including a tunnel integrator and a transmitting/reflecting polarizer coupled to the output end of the tunnel integrator. The input end of the tunnel integrator includes an input aperture and a reflective inside surface coated with a quarter wave retarder. In operation, the randomly polarized light enters the tunnel integrator through the input aperture. The polarization recapture system transmits light having a first polarization as polarized light output and recycles light having a second polarization orthogonal to the first polarization. The light having the second polarization is reflected by the transmitting/reflecting polarizer back into the tunnel integrator. The polarization recapture system recycles the light having the second polarization by reflecting and reorienting the light having the second polarization to light of the first polarization.