Backlight module
AssigneeChangshu Sunrex Technology Co., Ltd.
InventorQing ZHANG
Life of this patent
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Abstract
A backlight module includes: a light guiding plate; at least one light guiding point which is formed on a bottom surface of the light guiding plate; an upper light-permeable thin film disposed on a top surface of the light guiding plate; a lower light-permeable thin film disposed on the bottom surface of the light guiding plate and opposite to the upper light-permeable thin film; and a luminous element from which light beams are incident to the light guiding plate. The upper and lower light-permeable thin films respectively have refractive indices lower than that of the light guiding plate so that a total internal reflection of the light beams occurs between the upper and lower light-permeable thin films.
Claims12
A backlight module, comprising:
- a light guiding plate;
- at least one light guiding point which is formed on a bottom surface of said light guiding plate;
- an upper light-permeable thin film disposed on atop surface of said light guiding plate;
- a lower light-permeable thin film disposed on said bottom surface of said light guiding plate and opposite to said upper light-permeable thin film;
- and
- a luminous element from which light beams are incident to said light guiding plate;
- wherein said upper and lower light-permeable thin films respectively have refractive indices lower than that of said light guiding plate so that a total internal reflection of the light beams occurs between said upper and lower light-permeable thin films, and
- wherein said light guiding point scatters and directs the light beams to pass through said upper light-permeable thin film.
Dependencies are inferred from the claim text.