Toshiba Matsushita Display Technology Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Toshihiko Ura

Yoshinori Yasuda

Makoto Shimizu

Norimasa Kondo

Kenichi Akasaka

Kenji Koshiga

Shinichi Nakajima

Shinichi Matsuda

Junichi Morinaka

Hiromi Kaneda

Koujirou Higa

Takamitsu Isono

Yasushi Sakuda

An image display apparatus includes: a display panel; a back frame including a flat portion and a side wall; light sources arranged in rows and columns at substantially equal intervals in the flat portion; support pins arranged in rows and columns at substantially equal intervals in the flat portion and away from the light sources; a diffuser panel diffusely emitting light from the light sources toward the display panel; and a luminance-equalizing sheet that is supported on the support pins, between the diffuser panel and the back frame, has an outer edge substantially overlapping an outer edge of an active area of the display panel, and transmits part of the light from the light sources toward the diffuser panel. The luminance-equalizing sheet protrudes in a curved manner toward the side wall between the diffuser panel and the side wall such that distance to the back frame gradually decreases outward.

Image display apparatus

A surface light source unit includes a cold-cathode fluorescent tube, a light guide which receives light from the cold-cathode fluorescent tube and outputs the light, a back frame supporting the cold-cathode fluorescent tube and the light guide and including a projection used to position the light guide and the cold-cathode fluorescent tube, and a lamp holder including a holding portion which holds an end of the cold-cathode fluorescent tube, and a buffering portion provided between the projection and the cold-cathode fluorescent tube.

Surface light source unit with buffering means, and liquid crystal display with the unit

Illumination unit UT is used for the illumination of an LCD panelfrom the rear side of the LCD panel. Illumination unit UT includes light source, rear coverto cover light sourceand resin frameassembled with rear cover. Resin frameis provided with stopperand ribdisposed to restrict the movement of stopperperpendicularly to rib. Rear coverhas first and second aperturesandprovided correspondingly to receive stopperand rib, respectively. Resin frameand rear coverare assembled with each other by the engagement of stopperand ribwith first and second aperturesand, respectively.

Illumination unit and liquid crystal display device using the same

Illumination unit UT is used for the illumination of an LCD panelfrom the rear side of the LCD panel. Illumination unit UT is provided with light source, rear coverto cover light sourceand reflective sheetcoated on an inner surface of rear cover. Concretely, reflective sheetis disposed to have clearance 'A' with respect to rear cover. Alternatively, reflective sheetis divided into a plurality of pieces, so that clearance 'A' is defined between at least one pieceA of reflective sheetand rear cover

An uneven surface portion is formed on the inner surface of a lamp holder to thereby reduce the contact area between the inner surface of the lamp holder and a light incident face of a light guide plate. The light incident face of the light guide plate and the inner surface of the lamp holder are prevented from coming into close contact with each other due to heat transferring from cold-cathode fluorescent tubes and to the light guide plate. The heat transferring via the lamp holder to the light guide plate is intercepted by an air layer occurring between the uneven surface portion of the lamp holder and the light incident face of the light guide plate. Accordingly, it can be prevented that a part of the lamp holder sticks to the light incident face of the light guide plate of the backlight when the lamp holder is replaced.

Surface light source device, flat type display device and liquid crystal display device

A liquid crystal display device according to the present invention has a lighting unit (UT) comprising a light guiding plate (), a light source (), a reflector (), a reflecting sheet () and a housing (), and a liquid crystal display panel (). In the liquid crystal display device, increase in temperature of the light source () is prevented by providing an opening portion (S) on the housing () such that the opening portion (S) reaches the reflector (). In the liquid crystal display device, light emission intensity of the lighting unit (UT) is not lowered during operation of the device, and further, a lifetime of the light source () is not shortened.

Illumination unit and liquid crystal display comprising it

An area light source device includes an L-shaped cold-cathode fluorescent lamp, a wedge-shaped light guide having an incidence surface, on which emission light from the cold-cathode fluorescent lamp is incident, and a reflector that surrounds the cold-cathode fluorescent lamp, has an opening facing the incidence surface, and reflects the emission light from the cold-cathode fluorescent lamp toward the light guide, wherein the opening of the reflector has a shape corresponding to shapes of two mutually neighboring incidence surfaces of the light guide.

Area light source device and liquid crystal display apparatus including the same

A lighting unit of the present invention includes a light guiding plate (), a light source () disposed so as to face an end face of the light guiding plate, a reflector () disposed so as to surround the light source, a housing () disposed so as to have a light guiding plate-retaining portion () that retains at least the reflector and is partially interposed between the light source and the end face of the light guiding plate so as to retain the light guiding plate, and a reflecting sheet () disposed on one of principal surfaces of the light guiding plate, the lighting unit being configured such that light from the light source enter into the end face of the light guiding plate and goes out from another principal surface of the light guiding plate. The reflecting sheet is disposed so that an edge portion () is bent so as to be positioned between the light guiding plate-retaining portion of the housing and the end face of the light guiding plate.

Lighting unit and liquid crystal display device using the unit

In a lighting unit (UT) of the present invention comprising a light guiding plate (), casings () covering at least a pair of side portions and a lower surfaceof the light guiding plate so as to form a column-shaped light source unit storage space () along a side surface () of one of the side portions, a reflecting sheet () disposed between the lower surface of the light guiding plate and a bottom surface of the casing such that an end () thereof protrudes into the light source unit storage space, and a light source unit (L) inserted into the light source unit storage space and having a light source (), a reflector (), and a light source holding component (), wherein the light source is bar-shaped and disposed along the side surface () of the light guiding plate, the reflector is plate-shaped and encloses the side surface () of the light guiding plate such that the light source is located inside thereof and one end thereof is located under the end () of the reflecting sheet, and the light source holding component is disposed on the reflector for holding both the end portions of the light source, a structure (A) for inhibiting the end () of the reflector from entering between the light guiding plate and the reflecting sheet when the light source unit is inserted into the light source unit storage space or for confirming whether or not the end of the reflector has entered is provided.

Lighting device, and liquid crystal display device using the same

A washing machine includes a washing shaft for rotating agitating blades disposed in a dewatering tank, and the washing shaft is disposed coaxially on a hollow dewatering shaft for rotating the dewatering tank. The washing shaft is connected to the output side of a reduction mechanism, and a washing side input shaft is connected to the input side of the reduction mechanism to rotate the washing shaft by decelerating the rotation of a drive motor. A rotor of the drive motor is coupled to the lower part of the washing side input shaft. Therefore, the rotating torque of the agitating blades can be increased without increasing the torque of the drive motor. In addition, if the laundry collides against the agitating blades, the eccentricity to the washing side input shaft is suppressed, thereby the increase of the washing capacity can be handled without increasing the size of the drive motor.

Washing machine

A motor drives, via a hollow dryer shaft, a basket doubling as a washing basket and a spin-dryer basket. The motor rotating speed is reduced by a speed reduction mechanism, thereby driving an agitator disposed in the basket via a washing shaft that is axially aligned with the dryer shaft. A clutch switches transmission of the motor driving force either to the dryer shaft or to the washing shaft. The speed reduction mechanism and the motor are axially aligned with one another. The clutch is placed within a motor bracket, and is controlled by a clutch driver that is inserted into the bracket through a hole provided on the motor bracket. These arrangements restrain unbalance of a water tub during a dehydrating step, as well as prevent water or fingers of users from entering the motor.

Growing community of inventors

Nomi, Japan

Toshihiko Ura