Backlight module
AssigneeMicrosoft Technology Licensing, LLC
InventorNalini Kanth Kurumaddali
Life of this patent
Estimating the term…
Abstract
Examples are disclosed that relate to backlight modules, displays including a backlight module, and methods for assembling a backlight module. In one example, a backlight module for a display comprises light sources affixed to a printed circuit and a light guide plate. An adhesive affixes the printed circuit to the light guide plate. The light guide plate comprises a body and a plurality of projections extending from the body, with the plurality of projections retaining two or more of the light sources between the projections and the body of the light guide plate.
Claims20
A backlight module for a display, the backlight module comprising:
- a light guide plate;
- a plurality of light sources affixed to a printed circuit;
- and
- an adhesive affixing the printed circuit to the light guide plate,
- wherein the light guide plate comprises a body and a plurality of projections extending from the body, each of the plurality of projections comprising an extension portion that extends from the body of the light guide plate, and each of the plurality of projections comprising a first retention surface and a second retention surface, the two retention surfaces retaining two light sources of the plurality of light sources between the projection and the body of the light guide plate, respectively;
- wherein the second retention surface extends from an end of the extension portion in a direction opposite to the first retention surface, the first retention surface retaining a first light source of the plurality of light sources between the first retention surface and an end face of the body of the light guide plate and the second retention surface retaining a different second light source of the plurality of light sources between the second retention surface and the end face of the body of the light guide plate;
- and
- wherein the first retention surface and the second retention surface each defines a gap between said first and second retention surfaces and a first side of each of the respective first and second light sources.
The backlight module of 3, wherein each of the extension portions extends perpendicularly from the end face of the body of the light guide plate.
A method of assembling a backlight module, the method comprising:
- providing a plurality of light sources affixed to a printed circuit;
- providing a light guide plate comprising a body and a plurality of projections extending from the body, each projection of the plurality of projections comprising an extension portion that extends from the body of the light guide plate, and each projection of the plurality of projections comprising a first retention surface and a second retention surface, wherein the second retention surface extends from an end of the extension portion in a direction opposite to the first retention surface;
- and
- affixing the printed circuit to the light guide plate such that, for each of the plurality of projections, the two retention surfaces retain two of the plurality of light sources between the projection and an end face of the body of the light guide plate, respectively, wherein the first retention surface and the second retention surface each defines a gap between said first and second retention surfaces and a first side of each of the respective first and second light sources.
A display, comprising:
- a backlight module that comprises:
- a light guide plate;
- a plurality of light sources affixed to a printed circuit;
- and
- an adhesive affixing the printed circuit to the light guide plate, wherein the light guide plate comprises a body and a plurality of projections extending from the body, each of the plurality of projections comprising an extension portion that extends from the body of the light guide plate, and each of the plurality of projections comprising a first retention surface and a second retention surface, the two retention surfaces retaining two or more of the plurality of light sources between the projection and the body of the light guide plate, respectively;
- wherein the second retention surface extends from an end of the extension portion in a direction opposite to the first retention surface, the first retention surface retaining a first light source of the plurality of light sources between the first retention surface and an end face of the body of the light guide plate and the second retention surface retaining a different second light source of the plurality of light sources between the second retention surface and the end face of the body of the light guide plate, wherein the first retention surface and the second retention surface each defines a gap between said first and second retention surfaces and a first side of each of the respective first and second light sources;
- and
- a liquid crystal cell adjacent to the backlight module.
Dependencies are inferred from the claim text.