摘要:
This invention provides a process for producing a gallium nitride-based compound semiconductor laser element, characterized in that a plane inclined at not less than 0.16 degree and not more than 5.0 degrees in terms of absolute value in the direction of in (0001) Ga plane, or a plane in which the root mean square of (A2+B2) is not less than 0.17 and not more than 7.0 wherein A represents the off angle of (0001) Ga plane to direction and B represents the off angle of (0001) Ga plane to direction, is used as a crystal growth plane of a gallium nitride substrate, and an active layer is grown at a growth rate of not less than 0.5 ú/sec and not more than 5.0 ú/sec. The production process is advantageous in that, even in the case of use of a gallium nitride substrate having a large off angle, the slope efficiency is high, the element resistance is reduced, the drive voltage can be reduced, the production yield is high, the variation is small, and high-output violet light can be generated. There is also provided a compound semiconductor laser element produced by the above process.
摘要:
A three-dimensional image display unit comprising a liquid crystal parallax barrier provided on the surface of an image display unit such as a transmitting liquid crystal display unit across a transparent plate, wherein a shielding member such as a black mask for shielding the outgoing light of a light incident from the side surface of the transparent plate is provided in the vicinity of the boundary of the effective display area of the parallax barrier. The shielding member may be provided inside or outside the parallax barrier. Such a construction can prevent blur forming in the vicinity of the boundary of the effective display area or a deterioration in display quality such as insufficient black displaying at a part that should be black-displayed, thereby providing a three-dimensional image display unit giving a good display quality in the vicinity of the boundary of the effective display area even if it is enlarged in size.
摘要:
A navigation apparatus includes notification means for notifying an advance direction at a branching point in a route guiding, storage means for storing a plurality of moving methods and notification methods corresponding to the respective moving methods, input means for selecting one of the plurality of moving methods stored in the storage means, and control means for causing the notification means to perform notification by the notification method corresponding to the moving method selected by the input means. Thus, it is possible to easily set a route guiding such as a distance to the branching point where guiding is started for each of the moving methods and a sound volume.
摘要:
A liquid crystal display device (1), comprising a liquid crystal display panel and an illumination unit (10). The illumination unit (10) further comprises a housing (11) having a rectangular bottom wall face and having, at its side peripheral edge parts, cut and erected pieces (141) and (142) formed by cutting out a part of the bottom wall surface and projecting the cutout parts to the rear surface, and a frame-shaped intermediate frame (20) having a display window (200) at its center part to which an illuminating member stored in the housing (11) is fixed. The intermediate frame (20) comprises locking pieces (231) inserted into opening parts (140) formed, when the cut and erected pieces are cut and raised, at positions corresponding to the cut and erected pieces (141) and (142). When the intermediate frame (20) is fixed to the housing (11), clearances formed between the cut and erected pieces (141) and (142) and the locking pieces (231) form a lead fixing parts for holding fixing leads (4) extracted from the illuminating member. The liquid display device thus provided can easily fix the leads extracted from the housing.
摘要:
When a hook detection unit (18) detects the off-hook of a handset (8), voice (e.g., “telephone book”, the other party's name) sent from a user is input via the handset (8), and a voice recognition unit (110) recognizes the voice, the other party's name and a telephone number stored in a telephone book memory (3) are displayed on a display unit (5). Then, when voice “up/down” is input via the handset (8), another party's name and a telephone number stored in a telephone book memory (3) are switched and displayed on a display unit (5); and when voice “telephone” or “fax” is input, a call is made or a fax transmission started to the other party displayed on the display unit (5).
摘要:
A first buffer layer is formed on a substrate at a lower temperature than a single-crystal-growth-temperature, one or more of a layer composed of a nitride containing neither Ga nor In, a layer which has two or more thin films having different moduli of elasticity cyclically laminated therein, and a layer having an Al composition ratio which decreases and a Ga composition ratio which increases in a direction from the first buffer layer to a device-constituting layer are formed as a second buffer layer on the first buffer layer at the single-crystal-growth-temperature, and a device-constituting layer composed of a nitride semiconductor is formed on the second buffer layer.
摘要:
In an element wherein a plurality of ridges (16, 36) are arranged in parallel, supports (17, 37) are formed to sandwich each of the ridges (16, 36). More specifically, on an outer side of the ridge (16) in the element, the first support (17a) is formed, and on an inner side in the element, the second support (17b) is formed. On an outer side of the ridge (36) in the element, the first support (37a) is formed, and on an inner side in the element, the second support (37b) is formed. Thus, even when a resist is applied on an element surface and spin-coating is performed at the time of manufacturing the element, the resist on the inner side than the ridges (16, 36) in the element can be prevented from flowing into a groove between the ridges to a certain extent by means of the second supports (17b, 37b), and a resist film thickness on the inner sides of the ridges (16, 36) in the element can be prevented from being considerably small compared with that on the outer sides in the element.
摘要:
A liquid crystal display comprising a liquid crystal panel having a first glass substrate and a second glass substrate provided with a terminal part protruding beyond the first glass substrate; a backlight provided with a light source, a light guide plate and an optical sheet; a case for housing the liquid crystal panel and the backlight; and a double-sided tape for bonding the second glass substrate side of the liquid crystal panel and the case. The double-sided tape is provided at a frame part in the outer circumference of the effective display section of the liquid crystal panel which is closer to the effective display section than the terminal part and where the first and second glass substrates overlap. The double-sided tape is narrower than the width of the frame part where the first and second glass substrates overlap. Consequently, there can be obtained a liquid crystal display having such a structure that the liquid crystal panel is insusceptible to damage when dropped.
摘要:
When viewed from the end face side of a light guide plate, all linear lamps in a backlight may be arranged to be able to be viewed directly without being intercepted by other lamps and supported by a spacer. A lamp reflector may have a back surface facing the plurality of linear lamps, and a side face for supporting the back surface against the light guide plate, wherein the back surface may have a reflective surface projecting inward at the central part along the longitudinal direction of the reflector. Luminance of the light guide plate may be enhanced by utilizing lights exiting the linear lamps efficiently in the backlight of a large liquid crystal display, appropriate intervals may be sustained among the plurality of linear lamps, and luminance lowering due to high frequency interference caused by a contact of each linear lamp with a reflector may be prevented.