Abstract: The backlight module comprises a light guide device, pluralities of light sources and at least one optical film. The light guide device further contains body, first microstructures, second microstructures, flat portions and diffusive beads. The first microstructures are disposed on reflective surface. A first point and a second point are disposed at two ends of the first microstructure with a first width (P1). Each flat portion has a gap (G) defined between two adjacent first microstructures. The second microstructure connects to the body by means of two edge portions. Two edge portions have a second width (P2) defined on the incident surface; wherein a first depth (H1) is defined to be the distance between the crossing point of two edge portions away from the incident surface. Pluralities of diffusive beads have weight Mb. The body has weight Mt. Then the equations of H 1 P 2 * P 1 G ? 0.288 and H 1 P 2 * P 1 G * M t M b ? 96.0 are satisfied.

Abstract: A Subscriber Identity Module (SIM) card control apparatus applied to a mobile communication device is provided. The mobile communication device has a first SIM card and a second SIM card. The SIM card control apparatus includes a judgment unit, a SIM card controller and a switch device. The judgment unit is used to generate a selection signal according to a to-be-accessed SIM card among the first and the second SIM cards. The SIM card controller transmits signals via a group of signal lines. The switch device is used to selectively connect the group of signal lines to the first SIM card or the second SIM card according to the selection signal.

Abstract: An object detection device includes a RF emitter composed of a RF emitting module and an emitter antenna for emitting an EM wave, a RF receiver composed of a RF receiving module and a RF antenna for receiving a reflected EM wave by a predetermined object and a processor connected to the RF emitter and the RF receiver to process the received reflected EM wave so as to obtain a received signal strength indicator (RSSI) such that existence of the object is determined based on fluctuation of the RSSI when compared with a predetermined threshold value.

Abstract: The main body of the main unit has a light-receiving surface, a light-reflecting surface, and a light-projecting surface. The reflecting unit includes a plurality of reflecting microstructures formed on the light-reflecting surface. Each reflecting microstructure has a first reflecting curved surface, and the first reflecting curved surface of each reflecting microstructure has a first reflecting curved line shown on the lateral surface thereof. The first reflecting curved line of each first reflecting curved surface is substantially composed of a first base point as an initial point on the first bottom portion of the light-reflecting surface, a second base point as an end point on the second bottom portion of the light-reflecting surface, and a first curve track connected from the first base point to the second base point and passing through a plurality of first trajectory points.

Abstract: An edge-type backlight module and a direct-type backlight module with a optical device are provided. The optical device comprises an array layer and a second refractive layer. The array layer has a first refractive index (n1) and contains pluralities of lenticular lens disposed on a base surface side by side. The lenticular lens contains a curving structure with a peak, a trough, a curvature radius (R), a width (P) and an altitude (H) between the peak and the trough. The trough is disposed on the base1 surface. The array layer has a first critical angle (?1c) relative to the normal of the base surface and satisfies ? 1 ? c = sin - 1 ? ( 1 n 1 ) and H = R 1 + K ? [ 1 - 1 - ( 1 + K ) ? ( P 2 ? R ) 2 ] . The conical constant (K) of the lenticular lens ranges from ?2.1 to ?1.5.

Abstract: An optical film is to attach on a light-incident surface of a light guide plate which cooperates with a plurality of side-light sources in order to form a backlight module. A plurality of specially designed micro-structures is formed on the optical film to better deflect the light generated by the side-light sources before the light enters the light guide plate. Such that, by having the optical film, the dark areas of the light guide plate can be reduced, the effective visual area of the LCD device can be enlarged, and the number of side-light sources as well as the cost for producing the backlight module and the LCD device can be substantially reduced.

Abstract: A light-guiding plate includes a main unit and a reflecting unit. The main body of the main unit has a light-receiving surface, a light-reflecting surface, and a light-projecting surface. The reflecting unit includes a plurality of reflecting microstructures formed on the light-reflecting surface. Each reflecting microstructure has a first reflecting curved surface, and the first reflecting curved surface of each reflecting microstructure has a first reflecting curved line shown on the lateral surface thereof. The first reflecting curved line of each first reflecting curved surface is substantially composed of a first base point as an initial point on the first bottom portion of the light-reflecting surface, a second base point as an end point on the second bottom portion of the light-reflecting surface, and a first curve track connected from the first base point to the second base point and passing through a plurality of first trajectory points.

Abstract: The backlight module comprises a light guide device, pluralities of light sources and at least one optical film. The light guide device further contains body, first microstructures, second microstructures, flat portions and diffusive beads. The first microstructures are disposed on reflective surface. A first point and a second point are disposed at two ends of the first microstructure with a first width (P1). Each flat portion has a gap (G) defined between two adjacent first microstructures. The second microstructure connects to the body by means of two edge portions. Two edge portions have a second width (P2) defined on the incident surface; wherein a first depth (H1) is defined to be the distance between the crossing point of two edge portions away from the incident surface. Pluralities of diffusive beads have weight Mb. The body has weight Mt. Then the equations of H 1 P 2 * P 1 G ? 0.288 and H 1 P 2 * P 1 G * M t M b ? 96.0 are satisfied.

Abstract: An edge-type backlight module and a direct-type backlight module with a optical device are provided. The optical device comprises an array layer and a second refractive layer. The array layer has a first refractive index (n1) and contains pluralities of lenticular lens disposed on a base surface side by side. The lenticular lens contains a curving structure with a peak, a trough, a curvature radius (R), a width (P) and an altitude (H) between the peak and the trough. The trough is disposed on the base surface. The array layer has a first critical angle (?1c) relative to the normal of the base surface and satisfies ? 1 ? c = sin - 1 ? ( 1 n 1 ) and H = R 1 + K ? [ 1 - 1 - ( 1 + K ) ? ( P 2 ? R ) 2 ] . The conical constant (K) of the lenticular lens ranges from ?2.1 to ?1.5.

Abstract: A Subscriber Identity Module (SIM) card control apparatus applied to a mobile communication device is provided. The mobile communication device has a first SIM card and a second SIM card. The SIM card control apparatus includes a judgment unit, a SIM card controller and a switch device. The judgment unit is used to generate a selection signal according to a to-be-accessed SIM card among the first and the second SIM cards. The SIM card controller transmits signals via a group of signal lines. The switch device is used to selectively connect the group of signal lines to the first SIM card or the second SIM card according to the selection signal.

Abstract: An electronic system and device utilizing the same. The external device type is determined and provided corresponding function according to electrical parameter of the external device.

Abstract: A rear projection screen includes a first and second optical components. The second optical component includes a first surface on which a plurality of cylindrical convex portions are formed, and a second surface opposite to the first surface. In this case, a plurality of concave portions are formed on the second surface, and each concave portion is positioned respectively corresponding to the place between each cylindrical convex portion. A light absorbing material is applied to each concave portion. Furthermore, the invention also discloses an optical component and a method for manufacturing the optical component.

Abstract: A rear projection screen includes a first and second optical components. The second optical component includes a first surface on which a plurality of cylindrical convex portions are formed, and a second surface opposite to the first surface. In this case, a plurality of concave portions are formed on the second surface, and each concave portion is positioned respectively corresponding to the place between each cylindrical convex portion. A light absorbing material is applied to each concave portion. Furthermore, the invention also discloses an optical component and a method for manufacturing the optical component.