Abstract: A lawn mowing vehicle (1) mows a lawn along the travel path of the vehicle. The lawn mowing vehicle (1) includes: at least one electric reel unit having an electric reel (22) raised and lowered by an electric cylinder (26a-26c).

Abstract: A lawn mowing vehicle (1) mows a lawn along the travel path of the vehicle. The lawn mowing vehicle (1) includes: at least one electric reel unit having an electric reel (22) raised and lowered by an electric cylinder (26a-26c); sensors (34a-34c) for detecting the travel speed of the vehicle; sensors for detecting the state of the lawn; and a control device (37) for controlling the electric cylinder (26a-26c) according to the result of the detection by the sensors (34a-34c) to thereby control the elevation position of the electric reel (22) and for controlling whether or not to rotate the electric reel (22) on the basis of the detected results of the sensors for detecting the state of the lawn.

Abstract: A lawn mowing vehicle (1) mows a lawn along the travel path of the vehicle. The lawn mowing vehicle (1) includes: at least one electric reel unit having an electric reel (22) raised and lowered by an electric cylinder (26a-26c); sensors (34a-34c) for detecting the travel speed of the vehicle; and a control device (37) for controlling the electric cylinder (26a-26c) according to the result of the detection by the sensors (34a-34c) to thereby control the elevation position of the electric reel (22).

Abstract: A lawn mowing vehicle (1) mows a lawn along the travel path of the vehicle. The lawn mowing vehicle (1) includes: at least one electric reel unit having an electric reel (22) raised and lowered by an electric cylinder (26a-26c); sensors (34a-34c) for detecting the travel speed of the vehicle; and a control device (37) for controlling the electric cylinder (26a-26c) according to the result of the detection by the sensors (34a-34c) to thereby control the elevation position of the electric reel (22).

Abstract: A lawn moving vehicle (1) is for movwing lawn along the travel path of the vehicle. The lawn moving vehicle (1) includes: at least one electric reel unit having an electric reel (22) driven by a motor (24); sensors (34a-34c) for detecting the travel speed of the vehicle; and a control device (37) for controlling the motor (24) according to the result of the detection by the sensors (34a-34c) to thereby control the rotational speed of the electric reel (22) provided to the electric reel unit.

Abstract: A lawn moving vehicle (1) is for mowing lawn along the travel path of the vehicle. The lawn moving vehicle (1) includes: at least one electric reel unit having an electric reel (22) driven by a motor (24); sensors (34a-34c) for detecting the travel speed of the vehicle; and a control device (37) for controlling the motor (24) according to the result of the detection by the sensors (34a-34c) to thereby control the rotational speed of the electric reel (22) provided to the electric reel unit.

Abstract: A lawn moving vehicle (1) is for movwing lawn along the travel path of the vehicle. The lawn moving vehicle (1) includes: at least one electric reel unit having an electric reel (22) driven by a motor (24); sensors (34a-34c) for detecting the travel speed of the vehicle; and a control device (37) for controlling the motor (24) according to the result of the detection by the sensors (34a-34c) to thereby control the rotational speed of the electric reel (22) provided to the electric reel unit.

Abstract: In the nitride semiconductor heterojunction field effect transistor of the present invention, the floating gate layer (32), as the third layer, is formed between the control gate electrode (34) and the AlGaN layer (11), and the potential for the electrons in the AlGaN layer (11), which is substantially neighboring the floating gate layer (32), is able to be substantially high, and then the channel is able to be depleted. Hence, no current can be flowed through the channel (no drain current) at the time of no gate voltage, as so-called stable normally-off operation can be obtained.

Abstract: In the nitride semiconductor heterojunction field effect transistor of the present invention, the floating gate layer (32), as the third layer, is formed between the control gate electrode (34) and the AlGaN layer (11), and the potential for the electrons in the AlGaN layer (11), which is substantially neighboring the floating gate layer (32), is able to be substantially high, and then the channel is able to be depleted. Hence, no current can be flowed through the channel (no drain current) at the time of no gate voltage, as so-called stable normally-off operation can be obtained.

Abstract: An LCD device suppresses the display quality degradation due to the mechanical strain of an LCD panel, the optical leakage through the gap between the frame-like portion of the casing (the shield front) and the panel, and the dust penetrated through the gap. The window of the casing or shield front is formed to be larger than an outer dimension of the second substrate. A sheet having electrical conductivity and a light-blocking property is placed in an approximately entire region sandwiched by an outer portion of the second substrate and a frame-like portion of the casing that surrounds the window. An electrically conductive layer is formed directly on or indirectly by way of an optical member on a surface of the second substrate, the surface being located on a side of the window. The sheet is connected to an inner surface of the frame-like portion of the casing and to the layer at the outer portion of the second substrate or on the member.

Abstract: A liquid crystal display includes an electro-luminescence portion which has electro-luminescence elements and a liquid crystal portion which has liquid crystal layer, scanning electrodes and signal electrodes and controls the transmittance of light emitted by the electro-luminescence elements. First, scanning pulses are applied in sequence to the scanning electrodes. Next, a gradation signal are applied associated with image data to the signal electrodes. Then, the electro-luminescence portion is allowed to emit light of a plurality of colors at the same time in pixels after transmissivity of the liquid crystal layers in the pixels reaches a predetermined value. The pixels are located at the intersections between a scanning electrode to which the scanning pulse is applied and the signal electrodes to which the gradation signal is applied.

Abstract: A circuit board protection cover includes a protection cover and an incision. The protection cover covers a circuit mounting surface of a circuit board entirely, and is made of an insulating material. The incision is selectively formed in the protection cover.

Abstract: A light emission surface having a substantially single surface in a liquid crystal display 1 is designed so as to be opposite to a rear of a liquid crystal panel 2 or a rear of an optical member 5 through an air layer. Thus, it is possible to provide a liquid crystal display that can prevent a heat accumulation in a liquid crystal panel without any drop of brightness, and a light source device used in the liquid crystal display.

Abstract: A light emission surface having a substantially single surface in a liquid crystal display 1 is designed so as to be opposite to a rear of a liquid crystal panel 2 or a rear of an optical member 5 through an air layer. Thus, it is possible to provide a liquid crystal display that can prevent a heat accumulation in a liquid crystal panel without any drop of brightness, and a light source device used in the liquid-crystal display.

Abstract: Disclosed is a liquid crystal display having a housing; and a liquid crystal panel which has a first substrate and a second substrate each of which has a nearly line-symmetrical and planar form and which have a nearly equal surface area and at least one of which are transparent, the first substrate and second substrate being nearly parallel disposed sandwiching a liquid crystal composition layer. The first substrate is provided with mounting end regions that are extended outside from the end of the second substrate at the line-symmetrical position of the first substrate, so that the liquid crystal panel is fixed to the housing through the mounting end regions.

Abstract: A horizontal electric-field type LCD device is provided, which prevents the display quality from degrading due to unwanted electric field with a thin and simple structure. This device is comprised of (a) a first transparent substrate; (b) a protecting conductive layer formed on an outer surface of the first substrate; (c) a second transparent substrate coupled with the first substrate to form a space between inner surfaces of the first and second substrates; the second substrate having an extended part that extend from the periphery of the first substrate; (d) a grounding electrode formed on the inner surface of the extended part of the second substrate; (e) a liquid crystal confined in the space formed between the inner surfaces of the first and second substrates; and (f) a conductive, elastic connection member for electrically interconnecting the conductive layer on the first substrate with the grounding electrode on the second substrate.

Abstract: A light emission surface having a substantially single surface in a liquid crystal display 1 is designed so as to be opposite to a rear of a liquid crystal panel 2 or a rear of an optical member 5 through an air layer. Thus, it is possible to provide a liquid crystal display that can prevent a heat accumulation in a liquid crystal panel without any drop of brightness, and a light source device used in the liquid crystal display.

Abstract: A circuit board protection cover includes a protection cover and an incision. The protection cover covers a circuit mounting surface of a circuit board entirely, and is made of an insulating material. The incision is selectively formed in the protection cover.

Abstract: A liquid crystal display includes an electro-luminescence portion which has electro-luminescence elements and a liquid crystal portion which has liquid crystal layer, scanning electrodes and signal electrodes and controls the transmittance of light emitted by the electro-luminescence elements. First, scanning pulses are applied in sequence to the scanning electrodes. Next, a gradation signal are applied associated with image data to the signal electrodes. Then, the electro-luminescence portion is allowed to emit light of a plurality of colors at the same time in pixels after transmissivity of the liquid crystal layers in the pixels reaches a predetermined value. The pixels are located at the intersections between a scanning electrode to which the scanning pulse is applied and the signal electrodes to which the gradation signal is applied.

Abstract: A light emission surface having a substantially single surface in a liquid crystal display 1 is designed so as to be opposite to a rear of a liquid crystal panel 2 or a rear of an optical member 5 through an air layer. Thus, it is possible to provide a liquid crystal display that can prevent a heat accumulation in a liquid crystal panel without any drop of brightness, and a light source device used in the liquid crystal display.