Abstract: An electronic device includes: a backlight module; a panel disposed on the backlight module; a viewing angle control element disposed between the backlight module and the panel; and a light modulation element disposed between the panel and the viewing angle control element. The light modulation element has a plurality of prism structures, and at least one of the plurality of prism structures includes a first bottom angle and a second bottom angle. The first bottom angle is larger than the second bottom angle, and a ratio of the first bottom angle to the second bottom angle satisfies 1<the first bottom angle/the second bottom angle?15.

Abstract: A display module including a display panel and a backlight module disposed on a side of the display panel is provided. The backlight module includes a light guide, a light emitting diode, and a first optical film. The light emitting diode has a light emitting surface adjacent to the light guide. The first optical film is located between the light guide and the display panel. The first optical film includes a first prisms extending along a first direction. The first prisms has a first unit area and a second unit area. A first part of the first prism in the first unit area has a first average height larger than a second average height of a second part of the first prism in the second unit area.

Abstract: A display module including a display panel and a backlight module disposed on a side of the display panel is provided. The backlight module includes a light guide, a light emitting diode, and a first optical film. The light emitting diode has a light emitting surface adjacent to the light guide. The first optical film is located between the light guide and the display panel. The first optical film includes a first prisms extending along a first direction. The first prisms has a first unit area and a second unit area. A first part of the first prism in the first unit area has a first average height larger than a second average height of a second part of the first prism in the second unit area.

Abstract: A display module including a display panel and a backlight module disposed on a side of the display panel is provided. The backlight module includes a light guide, a light emitting diode, and a first optical film. The light emitting diode has a light emitting surface adjacent to the light guide. The first optical film is located between the light guide and the display panel. The first optical film includes a plurality of first prisms extending along a first direction. The first prisms corresponding to the light emitting surface form a main portion and a peripheral portion located outside the main portion. The main portion has a first height larger than a second height of the peripheral portion.

Abstract: A display module including a display panel and a backlight module disposed on a side of the display panel is provided. The backlight module includes a light guide, a light emitting diode, and a first optical film. The light emitting diode has a light emitting surface adjacent to the light guide. The first optical film is located between the light guide and the display panel. The first optical film includes a plurality of first prisms extending along a first direction. The first prisms corresponding to the light emitting surface form a main portion and a peripheral portion located outside the main portion. The main portion has a first height larger than a second height of the peripheral portion.

Abstract: A display device and a processing apparatus of the same are provided. The display device includes a backlight module and a display panel. The backlight module includes a light guide component and at least a roughness structure. The light guide component has a light emitting surface, a light entering surface, and at least a side surface. The light emitting surface and the side surface are adjacent to each other and share an edge. The light entering surface is adjacent to the light emitting surface or the side surface. The roughness structure is formed on the side surface and has a surface roughness of 0.01-10 ?m. The display panel is disposed corresponding to the light emitting surface.