Abstract: A projection display device includes a light source; an optical system which modulates light from the light source, and emits the modulated light; a projecting portion which enlarges and projects the light emitted from the optical system; a cabinet which houses the light source, the optical system, and the projecting portion; an opening which is formed in one surface of the cabinet to allow mounting or dismounting of an optical component constituting the optical system, or the light source; a cover which covers the opening; and a holding portion which holds the cover in such a manner that the cover is allowed to slide in a direction along the one surface.

Abstract: The projection display device includes an imager unit which modulates light from a light source, and a cooling device which cools the imager unit. In this arrangement, the imager unit includes a red imager which modulates light in a red wavelength band, a green imager which modulates light in a green wavelength band, and a blue imager which modulates light in a blue wavelength band. Further, the cooling device includes cooling fans which supply a cooling air to the imager unit. The cooling device is configured in such a manner that at least one of the cooling fans is provided for each of the red imager, the green imager, and the blue imager, and a plurality of the cooling fans is provided for at least the green imager.

Abstract: A projection display device includes a light source having a light emitting portion, a reflector which reflects light emitted from the light emitting portion, and a fixing portion which fixedly mounts the light emitting portion with respect to the reflector.

Abstract: The invention enables efficient cooling of: a light source providing source light; an optical system adapted to split the source light received from the light source into three primary colors R, G, and B; and a power supply unit for supplying electric power to various electric components installed in a casing of a projector apparatus. To do so, a first fan is arranged between the light source and the power supply unit such that its air inspiration face is directed to the power supply unit and its air expiration face is directed to the light source. Further, a second fan, adapted to inspire air from within the projector apparatus, is provided in the central area of the projector apparatus. On the air expiration side of the second fan is a cooling duct for cooling the light source and optical system.

Abstract: A duct was configured such that an incident side and an outgoing side of each of liquid crystal panels 34r, 34g, and 34b are formed with discharge ports r1 and r2, g1 and g2, and b1 and b2 to discharge the air from fans 41 to 43 through ducts 411 to 431, and at the same time, a PBS 28 for aligning the polarizing direction of the light from a light source lamp is formed with a discharge port p1 to discharge the air from the fan 43 through the duct 432, and an incident side discharge port b1 and an outgoing side discharge port b2 of the liquid crystal panel 34b corresponding to the blue light are formed with the ducts so as to discharge the air from the fans 43 and 41 which are different from each other. As a result, even when an amount of light per unit area of high luminance is increased, the liquid crystal panels and the polarizing plates and the PBS can be effectively cooled by three sets of the fans.

Abstract: In a multiple image display device that is provided with a plurality of image display devices and that displays a single input image, the image display devices each divide the input image into division images that are individually displayed on the image display devices, and enlarge and display them. In particular, the image display device provided in an edge portion of the multiple image display device enlarges the division image toward a side opposite from the side of the edge portion. In this way, the edge portion of the input image is displayed on the multiple image display.

Abstract: The projector apparatus of the invention constructs colored imaging light by splitting a beam of light received from a light source into beams of three primary colors and inputting the beams of three primary colors in an image synthesizing device via light adjusting device. The image synthesizing device includes a prism, a prism mount for fixing the prism, LCPs, and LCP holders integral with the prism mounts for fixing the LCPs. The prism mount has a central area and multiple peripheral areas, each area in contact with the prism. The invention provides effective solution for solving reliability problems encountered in a cost reduction strategy for miniaturization of a prism and for using inexpensive plastic prism fixation members.

Abstract: An automatic channel search system for use with a video display apparatus that has multiple video interfaces, in which all the channels of the multiple video interfaces are searched for a signaling channel carrying thereon a signal, and the signaling status and/or non-signaling status the respective channels is recorded. Utilizing this method, a channel search operation can be achieved in a significantly reduced time. Particularly, when there is one only one signaling channel found in the search, straightforward image processing is performed on the signal carried on that signaling channel to display the image of the signal. Further, when more than one signaling channel is found, the signaling channels are shown for the user to select one, and the signal of the selected channel is processed and displayed.

Abstract: A projector (1) has: a LAN card (800) having thereon an IC; liquid crystal panels (34) for modulating red, green, and blue light; optical components that includes polarization beam splitter (PBS) (23); and fans for cooling the optical components. The projector is provided with cooling ducts, which include a first air duct (411) having one end connected to the fan (41) and another end connected to an outlet for sending air to the liquid crystal panel for red light, a second air duct (421) having one end connected to the fan (42) and another end connected to an outlet for sending air to the liquid crystal panel for green light, and a third air duct (431) having one end connected to the fan (43) and another end connected to an outlet for sending air to the liquid crystal panel for blue light. The cooling ducts also include a branching air duct (412 or 422) that extends to the IC on the LAN card.

Abstract: A projector having optical components, a power source unit, and a light source unit. The projector is capable of lowering its internal temperature utilizing: a first, second, and third fan (41, 42, 43) provided near the optical components for introducing external air from outside the projector to cool the optical components; and a fourth, fifth, and sixth exhaust fan (16, 17, 18). The fourth fan (16) blows the air that was taken in by the first, second, and third fan (41, 42, 43) and has cooled the optical components, onto the light source unit to further cool the light source unit. The fifth and sixth exhaust fans (17, 18) discharge the air that has cooled the light source unit and power supply unit out of the projector.

Abstract: A first exhaust fan 17 for mainly discharging exhaust air from a light source lamp 19 to exterior and a second exhaust fan 18 for mainly discharging exhaust air from parts other than the light source lamp 19 are arranged to be parallel to each other. An end of the exhaust fan 17 facing the other exhaust fan 18 is moved to the inner side and the one exhaust fan 17 is inclined to discharge air in an exhaust direction toward a direction along which air is discharged from the other exhaust fan 18. There is provided a cooling fan 16 that blows air to an interior air blow outlet 161 communicating with the interior of the light source lamp 19 and exterior air blow outlets 162 and 163 communicating with an outer surface to cool the light source lamp 19. The exterior air blow outlets 162 and 163 are deviated from the center of the outer surface of the light source lamp 19. The cooling fan 16 is used to allow the exhaust air used for cooling the light source lamp 19 to be discharged through the first exhaust fan 17.

Abstract: In a projection type image display apparatus, a noise removal filter portion 15 is separated from a power source unit body 14. The separated noise removal filter portion 15 is provided in the vicinity of a side wall of a housing on which a power source inlet is provided, and of the power source unit body 14, respectively. Specifically, the power source unit body 14 is provided along a side wall of a front face of the horizontally-long housing of the projection type image display apparatus and the noise removal filter portion 15 is provided in a position opposed to the power source unit body 14 in a side wall of the back face. As a result, even when a light source lamp has a higher output, the projection type image display apparatus can achieve reduced noise by an improved cooling capability and reduced cost enabled by an efficient Electro Magnetic Compatibility (EMC) measure and the like.

Abstract: A duct was configured such that an incident side and an outgoing side of each of liquid crystal panels 34r, 34g, and 34b are formed with discharge ports r1 and r2, g1 and g2, and b1 and b2 to discharge the air from fans 41 to 43 through ducts 411 to 431, and at the same time, a PBS 28 for aligning the polarizing direction of the light from a light source lamp is formed with a discharge port p1 to discharge the air from the fan 43 through the duct 432, and an incident side discharge port b1 and an outgoing side discharge port b2 of the liquid crystal panel 34b corresponding to the blue light are formed with the ducts so as to discharge the air from the fans 43 and 41 which are different from each other. As a result, even when an amount of light per unit area of high luminance is increased, the liquid crystal panels and the polarizing plates and the PBS can be effectively cooled by three sets of the fans.

Abstract: A projector apparatus and a lamp fixation structure for use with the projector apparatus are disclosed. The lamp fixation structure has a lower holder, which includes an integrally formed lower holder lens section and a lower holder lamp section. The lower holder lens section defines a lens fitting slot for fixing a lens, and a lower holder lamp section defines a lamp fitting slot for fixing a lamp. The lens fixing slot includes an upper holder connected to the lower holder. The lamp fixation structure also includes an integrally formed metal holder, which has an elastic top plate, elastic lateral plates, a front plate, an elastic bottom plate, and elastic jointing plates. The inventive lamp fixation structure of the projector apparatus consists of a fewer components and can be assembled in a simple manner, yet it is highly wrought.

Abstract: The projector apparatus of the invention constructs colored imaging light by splitting a beam of light received from a light source into beams of three primary colors and inputting the beams of three primary colors in an image synthesizing device via light adjusting means. The image synthesizing device includes a prism, a prism mount for fixing the prism, LCPs, and LCP holders integral with the prism mounts for fixing the LCPs. The prism mount has a central area and multiple peripheral areas, each area in contact with the prism.

Abstract: A projector apparatus equipped with a metal plate structure serving as a light shield against a light source and as a heat radiator is provided. The metal plate structure is arranged over the light source to hide the light source. The metal plate structure extends farther to a cooling fan and connects to the upper end of the air expiration face of the fan. The metal plate structure thus serves as the top plate of the baffle section of the exhaust duct of the fan for leading the air expired from the fan. The metal plate structure also serves as a shield plate, which can be connected to a grounded metal piece.

Abstract: The invention enables efficient cooling of: a light source providing source light; an optical system adapted to split the source light received from the light source into three primary colors R, G, and B; and a power supply unit for supplying electric power to various electric components installed in a casing of a projector apparatus. To do so, a first fan is arranged between the light source and the power supply unit such that its air inspiration face is directed to the power supply unit and its air expiration face is directed to the light source. Further, a second fan, adapted to inspire air from within the projector apparatus, is provided in the central area of the projector apparatus. On the air expiration side of the second fan is a cooling duct for cooling the light source and optical system.

Abstract: This invention provide a projector apparatus enabled to lower its exhaust air temperature by adding only minor modifications to the existing structure, without altering its basic structure. The liquid crystal projector apparatus of the invention has a casing (1) for accommodating therein a light source (4), an optical system adapted to construct imaging light in response to a beam of light received from the light source, a power supply (9), and a cooling unit (6) mounted on the side wall of the casing (1) to cool the components in the casing. Provided on the inner wall of the casing is an air inspiration mechanism (16, 17, 18, 126) in association with the exhaust unit (6), whereby the exhaust unit (6) can inspire ambient air through the air inspiration mechanism to lower the temperature of the air to be expired from the exhaust unit.