Abstract: A light source module and a display device are provided. The light source module includes a light source, a light guide plate, and an optical film set including multiple first optical microstructures having a first surface, multiple second optical microstructures having a second surface, and multiple third optical microstructures having a third surface. Each of the multiple first optical microstructures has a first vertex angle, each of the multiple second optical microstructures has a second vertex angle, and each of the multiple third optical microstructures has a third vertex angle. The third vertex angle is less than the first vertex angle, and the first vertex angle is less than or equal to the second vertex angle. By configuring the aforementioned optical microstructures, the light source module of the disclosure may greatly improve the collimation of light and has favorable luminance.

Abstract: A wavelength conversion element including a substrate, a blocking wall structure layer, and a wavelength conversion layer is provided. The blocking wall structure layer is disposed on a surface of the substrate and defines multiple microgrooves. Reflectivity of the blocking wall structure layer is in a range of 1% to 99%. The wavelength conversion layer is disposed in the microgrooves and includes multiple wavelength conversion particles. A height of the blocking wall structure layer along a normal direction of the surface of the substrate is greater than a height of the wavelength conversion layer along the normal direction of the surface of the substrate. A backlight module adopting the wavelength conversion element is also provided.

Abstract: A light source module includes a light guide plate, light emitting elements, a prism sheet and a reflective sheet. The light guide plate has a light incident surface, a light emitting surface and a bottom surface. The light incident surface is connected to the light emitting surface and the bottom surface. The light emitting elements are disposed beside the light incident surface. The prism sheet is disposed beside the light emitting surface and includes prism pillars. The reflective sheet is disposed beside the bottom surface and includes a substrate and pyramidal structures. The substrate has a reflective surface. The pyramidal structures are disposed on the reflective surface. Each pyramidal structure has optical side surfaces. Each optical side surface has a bottom edge connected to the reflective surface. One optical side surface faces the light incident surface, and the respective bottom edge is parallel to the light incident surface.

Abstract: A backlight module includes a light-emitting element, a quantum dot film, an optical film and a light adjusting element. The light-emitting element is adapted to emit a blue light. The quantum dot film is adapted to converting a first portion and a second portion of the blue light into a red light and a green light, respectively. The optical film is disposed on the quantum dot film. The light adjusting element is disposed between the optical film and the quantum dot film. The light adjusting element has a first surface and a second surface respectively facing the quantum dot film and the optical film. The first surface has multiple first optical microstructures. The first optical microstructures include multiple cones protruding toward the quantum dot film. Moreover, a display apparatus including the backlight module is also provided.

Abstract: A light guide plate has a light-incident surface, a bottom surface, a light-emitting surface, first microstructures and second microstructures. The bottom surface is opposite to the light-emitting surface, the light-incident surface is connected between the bottom surface and the light-emitting surface. The first microstructures protrude from the bottom surface and are arranged at intervals along a direction parallel to the light-incident surface and extend from the light-incident surface in a predetermined direction. The second microstructures are disposed between the first microstructures away from the light-incident surface, and each them includes light-adjusting blocks protruding from the bottom surface and arranged along the predetermined direction. Each first microstructure has a first height, and each light-adjusting block has a second height smaller than the first height. The light guide plate has a reduced horizontal viewing angle and a maintained luminance.

Abstract: A light guide plate has a light-incident surface, a bottom surface, a light-emitting surface, first microstructures and second microstructures. The bottom surface is opposite to the light-emitting surface, the light-incident surface is connected between the bottom surface and the light-emitting surface. The first microstructures protrude from the bottom surface and are arranged at intervals along a direction parallel to the light-incident surface and extend from the light-incident surface in a predetermined direction. The second microstructures are disposed between the first microstructures away from the light-incident surface, and each them includes light-adjusting blocks protruding from the bottom surface and arranged along the predetermined direction. Each first microstructure has a first height, and each light-adjusting block has a second height smaller than the first height. The light guide plate has a reduced horizontal viewing angle and a maintained luminance.

Abstract: A light turning film includes a light incident surface with first and second pluralities of first optical microstructures and a plurality of second optical microstructures; and a light emitting surface opposite to the light incident surface. The first optical microstructures and the second optical microstructures protrude outward from the light turning film, such that the height of one of the first and second optical structures is equal to or less than two thirds of the height of the other one of the first and second optical structures. The light turning film might be included in a light source module for a display apparatus.

Abstract: A backlight module includes a light guide plate having a bottom surface, a light emitting surface, a first light incident surface, and microstructures. Each microstructure recesses into or protrudes from the bottom surface and has a first and a second surfaces. The first and the second surfaces of at least one of the microstructures are located on two sides of a first reference plane parallel to the first light incident surface. A section-line of each first surface on a second reference plane perpendicular to the first light incident surface and perpendicular to the light emitting surface is a straight line. A first angle between each first surface and a third reference plane parallel to the light emitting surface in the light guide plate is between 0 degrees and 20 degrees, and a thickness of each microstructure is between 0 micrometers and 20 micrometers.

Abstract: A light adjusting sheet includes a base and a first light adjusting structure layer. The base includes a first surface and a second surface opposite to the first surface. The first light adjusting structure layer is disposed on the first surface of the base, and the first light adjusting structure layer includes a plurality of light adjusting structures. Each light adjusting structure includes a major axis, a minor axis and a thickness, wherein the major axis of the light adjusting structure is in parallel with an extending direction. A ratio of a length of the minor axis to a length of the major axis is between 0.093 and 0.6, and the thickness is between 2 ?m to 6 ?m. A backlight module using the light adjusting sheet can achieve high brightness and large viewing angle.

Abstract: A light source module and a LGP are provided, the light source module includes the LGP, a light source and an optical film. The LGP includes a bottom surface, a light-emitting surface, a light incident surface and a reflection surface. A projection of the reflection surface on the light-emitting surface has an arc shape. The optical film is disposed on the light-emitting surface, and includes a plurality of prism columns in arrangement. The bottom surface has a plurality of microstructures, and each microstructure has a first surface and a second surface. The first surface is closer to the light incident surface compared to the second surface, and an included angle between the first surface and the bottom surface ranges between 1 and 10 degrees. The light source module of the invention effectively narrows horizontal and vertical viewing angles, and light and slim tendency of the light source module is satisfied.

Abstract: A light source module, a display apparatus and a light turning film are provided. The light turning film includes a light incident surface and a light emitting surface. The light incident surface includes a plurality of first optical microstructures and a plurality of second optical microstructures, and is adapted to guide a light beam to enter the light turning film through the light incident surface. The light emitting surface is disposed opposite to the light incident surface, and is adapted to guide the light beam to leave the light turning film through the light emitting surface. The first optical microstructures and the second optical microstructures protrude outward from the light turning film with reference of a reference plane. Each of the first optical microstructures and each of the second optical microstructures are complied with predetermined conditions.

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 includes a light guide plate (LGP), a light source, and at least one prism sheet. The LGP includes a light emitting surface, a bottom surface, a light incident surface, and a plurality of first microstructures on the bottom surface. Each of the first microstructure is a recessed structure and includes a first surface and a second surface. An included angle between the first surface and the bottom surface ranges from 15 degrees to 27 degrees. An included angle between the second surface and the bottom surface ranges from 50 degrees to 90 degrees. The light source provides a light beam, and an included angle between a light emitting direction of the light beam emitted from the light emitting surface of the LGP and a normal direction of the light emitting surface is greater than 30 degrees. The prism sheet is disposed above the light emitting surface.

Abstract: A backlight module includes a light guide plate having a bottom surface, a light emitting surface, a first light incident surface, and microstructures. Each microstructure recesses into or protrudes from the bottom surface and has a first and a second surfaces. The first and the second surfaces of at least one of the microstructures are located on two sides of a first reference plane parallel to the first light incident surface. A section-line of each first surface on a second reference plane perpendicular to the first light incident surface and perpendicular to the light emitting surface is a straight line. A first angle between each first surface and a third reference plane parallel to the light emitting surface in the light guide plate is between 0 degrees and 20 degrees, and a thickness of each microstructure is between 0 micrometers and 20 micrometers.

Abstract: A light adjusting sheet includes a base and a first light adjusting structure layer. The base includes a first surface and a second surface opposite to the first surface. The first light adjusting structure layer is disposed on the first surface of the base, and the first light adjusting structure layer includes a plurality of light adjusting structures. Each light adjusting structure includes a major axis, a minor axis and a thickness, wherein the major axis of the light adjusting structure is in parallel with an extending direction. A ratio of a length of the minor axis to a length of the major axis is between 0.093 and 0.6, and the thickness is between 2 mm to 6 mm. A backlight module using the light adjusting sheet can achieve high brightness and large viewing angle.

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 includes a light guide plate (LGP), a light source, and at least one prism sheet. The LGP includes a light emitting surface, a bottom surface, a light incident surface, and a plurality of first microstructures on the bottom surface. Each of the first microstructure is a recessed structure and includes a first surface and a second surface. An included angle between the first surface and the bottom surface ranges from 15 degrees to 27 degrees. An included angle between the second surface and the bottom surface ranges from 50 degrees to 90 degrees. The light source provides a light beam, and an included angle between a light emitting direction of the light beam emitted from the light emitting surface of the LGP and a normal direction of the light emitting surface is greater than 30 degrees. The prism sheet is disposed above the light emitting surface.

Abstract: A light guide plate includes a light emitting surface, a bottom surface, a light incident surface and many optical units. Each of the optical units includes a first optical microstructure and a second optical microstructure. The second optical microstructure has a first surface and a second surface. A first cross-sectional line obtained by cutting the first surface along a direction perpendicular to the light incident surface and the light emitting surface is an inclined straight line. A first end of a second cross-sectional line obtained by cutting the second surface along the direction perpendicular to the light incident surface and the light emitting surface and a second end of the second cross-sectional line are connected to form a reference straight line. An acute angle included by the reference straight line and a normal line of the light emitting surface is ?.

Abstract: A light guide plate includes a light emitting surface, a bottom surface, a light incident surface and many optical units. Each of the optical units includes a first optical microstructure and a second optical microstructure. The second optical microstructure has a first surface and a second surface. A first cross-sectional line obtained by cutting the first surface along a direction perpendicular to the light incident surface and the light emitting surface is an inclined straight line. A first end of a second cross-sectional line obtained by cutting the second surface along the direction perpendicular to the light incident surface and the light emitting surface and a second end of the second cross-sectional line are connected to form a reference straight line. An acute angle included by the reference straight line and a normal line of the light emitting surface is ?.

Abstract: A backlight module includes at least one point light source and a light guide plate. The light guide plate includes a light emitting surface, a bottom surface, a light incident surface, a first side surface, a second side surface, a first microstructure, and a second microstructure. The bottom surface is opposite to the light emitting surface, the light incident surface connects the light emitting surface and the bottom surface, the point light source is disposed adjacent to the light incident surface, and the first microstructure is formed on the light incident surface. The first side surface is opposite to the light incident surface and connects the light emitting surface and the bottom surface, and the second side surface connects the light emitting surface, the bottom surface, the light incident surface, and the first side surface. The second microstructure is formed on the second side surface.