Abstract: A lens includes a central portion and a surrounding portion. The central portion has a first and a second optical surfaces. The surrounding portion surrounds the central portion and has an inner refraction wall and an outer refraction wall. The outer refraction wall includes a first and a second outer surfaces. A distance between the symmetry axis and a junction of the inner refraction wall and the first optical surface is a first radius R1. A distance between the symmetry axis and a junction of the first outer surface and the second optical surface is a second radius R2. A distance between the symmetry axis and a junction of the second outer surface and the first outer surface is a third radius R3. The third radius R3 is greater than the second radius R2, and the second radius R2 is greater than or equal to the first radius R1.

Abstract: A light source module adapted to provide a first illumination beam to a display apparatus is provided. The display apparatus includes a display panel for displaying a 2D/3D image. The light source module includes a first wedge-shaped light guide plate, a first light emitting device, a second light emitting device, and a light source driving module. The first wedge-shaped light guide plate has a first and second light incident surfaces and an optical grating pattern. The first light emitting device and the second light emitting device are respectively disposed beside the first light incident surface and the second light incident surface. In a 2D/3D image display mode, the light source driving module controls to turn on the first/second light emitting device for providing the first illumination beam to the first wedge-shaped light guide plate. A method for driving the display apparatus is also provided.

Abstract: A light source module including a light guide plate, at least one light emitting device, a light-controlling pattern element, and an absorbing pattern element is provided. The light guide plate has a light emitting surface, a first surface opposite the light emitting surface, and at least one opening. The opening passes through the first surface and extends from the first surface toward the light emitting surface. The at least one light emitting device is disposed in the opening and arranged along an arranging direction. The light-controlling pattern element is disposed on the light emitting surface and covers the opening and the light emitting device. The opening faces towards the absorbing pattern element. The absorbing pattern element is disposed besides one of the at least one light emitting device and extends toward a side wall of the opening. Moreover, another two light source modules are also provided.

Abstract: A display including a back cover, a diffuser plate, a display panel, and a light source is provided. The back cover has a first supporting portion, a connecting portion and a second supporting portion. Two opposite ends of the connecting portion are connected to the first supporting portion and the second supporting portion respectively. The first supporting portion has a first surface, the second supporting portion has opposite second and third surfaces, and the first surface faces the second surface to form a containing space between the first surface, the connecting portion and the second surface. At least a part of a periphery of the diffuser plate is disposed in the containing space. The display panel is supported on the third surface. The light source is disposed on the back cover and adapted to provide a light beam to illuminate the display panel after passing through the diffuser plate.

Abstract: A backlight module including a back plate, a light guide plate, a light source, a plastic frame, and a light conversion layer is provided. The light guide plate is disposed on the back plate and has a light incident surface and a light exit surface, wherein a first edge of the light exit surface is adjacent to the light incident surface. The light source is disposed on the back plate and faces the light incident surface. The plastic frame is disposed on the back plate and covers the first edge. The light conversion layer is disposed on the light exit surface and extends to the first edge.

Abstract: A planar light source including an LGP and first and second light sources are provided. The LGP has a first surface and a second surface opposite to each other and a first groove and a second groove. The first groove and the second groove are respectively located on the first surface and the second surface, and are respectively located at two sides of a center line of the LGP, where the center line equally divides the first surface and the second surface. The first groove has a first side surface and a first light incident surface, and the second groove has a second side surface and a second light incident surface, where the light sources are disposed in the grooves. The light sources are suitable for respectively providing a light beam entering the LGP through the corresponding light incident surface.

Abstract: A touch device includes the following elements. A touch panel has two panel analog circuits and a panel digital circuit. Two inverting modules are assembled to two neighboring sides of the touch panel respectively, electrically coupled to the two panel analog circuits, and each electrically coupled to the panel digital circuit. A controlling module is assembled to the touch panel. The two inverting modules process analog signals transmitted from the two analog circuits into digital signals that are transmitted to the controlling module through the panel digital circuit. Therefore, the touch device may decrease a layout width that is occupied by the panel analog circuit.

Abstract: A back light module includes a light guide plate, at least one first light source, at least one second light source and at least one first reflection element. The light guide plate includes a first light incident surface, a second light incident surface opposite to the first light incident surface, a light emitting surface, and a bottom surface opposite to the light emitting surface. The first light source is disposed beside the first light incident surface and suitable to provide a first non-collimated light beam to the first light incident surface. The second light source is disposed beside the second light incident surface and suitable to provide a first collimated light beam to the second light incident surface. The first reflection element is disposed beside the first light incident surface to reflect the first collimated light beam emitted so as to make the first collimated light beam diverge.

Abstract: A backlight module including an LGP, an optical film, a first light source is provided. The LGP has a bottom surface, a light emitting surface, a first light incident surface, and microstructures. Each microstructure is recessed into or protrudes out of the bottom surface and includes at least two structural units. A section line of each structural unit on a first reference plane is a curve, and the curve has a peak point. A distance between two peak points of two adjacent structural units along a first direction is greater than 0 and smaller than a half of a total width of the two structural units along the first direction. Each microstructure has a symmetric plane perpendicular to the light emitting surface and the first light incident surface. The optical film is located on the light emitting surface. The first light source is located beside the first light incident surface.

Abstract: A backlight module including a light guiding plate, a light source and a block is provided. The light guiding plate includes a first surface, a second surface opposite to the first surface, a light incident surface connecting to the first surface and the second surface, and a side surface opposite to the light incident surface. A thickness of at least part of the light guiding plate decreases progressively from the side surface towards the light incident surface. The light source is disposed beside the light incident surface and is capable of emitting a light beam into the light guiding plate through the light incident surface. The block is disposed beside the side surface and includes a reflecting surface facing towards the side surface. The reflecting surface is a concave surface on the block, and the reflecting surface is capable of reflecting the light beam returning to the side surface.

Abstract: A backlight module including a light guide plate, a light conversion layer, a light source, and a reflecting surface is provided. The light guide plate has a light emitting surface, a back surface, a first side, and a second side. The light emitting surface is opposite to the back surface, and the first side and the second side are connected between the light emitting surface and the back surface. The light conversion layer is disposed on the light emitting surface. The light source is disposed at the first side. The reflecting surface is located at the second side. An included angle between the reflecting surface and an extending direction of the light emitting surface is an acute angle. A light beam emitted by the light source enters the light guide plate through the first side, and is reflected by the reflecting surface after being transmitted through the light guide plate.

Abstract: A light source module includes at least one light bar, a reflector, and at least one bar-shaped reflection unit. The light bar includes light-emitting elements arranged along an extension direction. The reflector has at least one accommodation space accommodating the light bar and reflective convex surfaces located on two opposite sides of the light bar. The bar-shaped reflection unit is located above the light bar, extends along the extension direction, and has a reflection surface facing the light bar. A cross-sectional line obtained by cutting the reflection surface along an optical axis of any of the light-emitting elements and along a direction perpendicular to the extension direction includes a convex arc line protruding toward the light-emitting elements and two concave arc lines connected to two opposite sides of the convex arc line.

Abstract: A display device includes a light guide plate, at least one illuminating element, a side frame, and a display panel. The light guide plate includes a main body and at least one light-incident protrusion part. The main body has a light-emitting surface. The light-incident protrusion part is connected to the main body and has a light-incident surface. The illuminating element is arranged along the light-incident surface and is capable of emitting a light beam. The light beam enters the light guide plate from the light-incident surface and leaves the light guide plate from the light-emitting surface. The side frame is located on the light guide plate. The display panel is located between the light guide plate and the side frame. The side frame and the display panel expose the light-incident protrusion part. The side frame of the display device described herein has the small width.

Abstract: A backlight module including a chamber, a bottom reflector, a plurality of light sources, and a plurality of lenses is provided. The chamber has a bottom surface and a side surface. The bottom reflector is disposed inside the chamber and located on the bottom surface. The light sources are disposed inside the chamber and located above the bottom reflector. Each light source is adjacent to the side surface and provides light. The lenses are disposed on a transmission path of the light. Each lens has a back surface, a cavity on the back surface, and a light-emitting surface. The cavity has a light-incident surface. Each light source is arranged corresponding to one of the lenses and adjacent to the cavity. The light, after passing the lenses, is divided into light beams with different propagating directions. The light beams irradiate the bottom reflector.

Abstract: A touch display device including a touch module, a display module, a tape, and an optical clear resin is provided. The display module has a polarizer. The tape is installed between the touch module and the display module, wherein a thickness of the tape is larger than a thickness of the polarizer. The tape surrounds a margin of the display module to form an accommodating space with the polarizer. The optical clear resin is disposed in the accommodating space. The touch module and the display module are adhered to each other by the optical clear resin.

Abstract: A display apparatus and a method for controlling a backlight module thereof are provided. The display apparatus includes the backlight module, an input unit and a processing unit. A light-emitting device of the backlight module includes a first light-emitting unit and a second light-emitting unit. A photoelectric conversion efficiency of the first light-emitting unit is higher than that of the second light-emitting unit, and a covering color gamut of the second light-emitting unit is larger than that of the first light-emitting unit. The input unit generates an input signal. The processing unit is coupled to the input unit and configured to receive the input signal generated by the input unit, and the processing unit is coupled to the backlight module, and dynamically adjusts respective light intensity ratios of the first light-emitting unit and the second light-emitting unit according to the received input signal.

Abstract: A lens includes a central portion and a surrounding portion. The central portion has a first and a second optical surfaces. The surrounding portion surrounds the central portion and has an inner refraction wall and an outer refraction wall. The outer refraction wall includes a first and a second outer surfaces. A distance between the symmetry axis and a junction of the inner refraction wall and the first optical surface is a first radius R1. A distance between the symmetry axis and a junction of the first outer surface and the second optical surface is a second radius R2. A distance between the symmetry axis and a junction of the second outer surface and the first outer surface is a third radius R3. The third radius R3 is greater than the second radius R2, and the second radius R2 is greater than or equal to the first radius R1.

Abstract: A display device includes a casing, a frame, a backlight module, at least one cable, and a display panel. The casing has a display opening. The frame is disposed in an inner edge of the display opening, wherein the frame has at least a cable management groove and a support surface. The backlight module is disposed on the frame. The cable is disposed in the cable management groove. The display panel is disposed on the frame and located in the display opening, wherein an edge portion of the display panel is located on the support surface, and the support surface supports the edge portion of the display panel. A part of the cable management groove is located under the display panel and at least partially overlapped with the edge portion.

Abstract: A backlight module including a light guide plate, a light conversion layer, a light source, and a reflecting surface is provided. The light guide plate has a light emitting surface, a back surface, a first side, and a second side. The light emitting surface is opposite to the back surface, and the first side and the second side are connected between the light emitting surface and the back surface. The light conversion layer is disposed on the light emitting surface. The light source is disposed at the first side. The reflecting surface is located at the second side. An included angle between the reflecting surface and an extending direction of the light emitting surface is an acute angle. A light beam emitted by the light source enters the light guide plate through the first side, and is reflected by the reflecting surface after being transmitted through the light guide plate.

Abstract: A light source module including an optical film, a bottom reflector, a top reflector, a light converging element, and a light emitting element is provided. The bottom reflector is located under the optical film. The top reflector and the light converging element are located at opposite sides of the optical film. The optical film, the bottom reflector, the top reflector, and the light converging element enclose a space. The light converging element has a first portion, a second portion, and a third portion. The light emitting element is disposed in the space and has an optical axis direction, where the third portion has a first surface facing the first portion, a first angle having a range of 5-10 degrees is included between the optical axis direction and a connection line between the light emitting element and one end of the first surface away from the light emitting element.