Light Guide Plates and Optical Films with Mating Alignment Features
First Claim
1. A backlight assembly configured to provide backlight illumination to display layers in a display, comprising:
- a light guide plate having a surface from which the backlight illumination is provided to the display layers, wherein the light guide plate has at least one light guide plate alignment feature; and
at least one optical film having an optical film alignment feature that is configured to mate with the at least one light guide plate alignment feature to laterally align the at least one optical film with respect to the light guide plate.
1 Assignment
0 Petitions
Accused Products
Abstract
Electronic devices may be provided with backlight structures that provide backlight illumination for a display. The backlight structures include a light source such as an array of light-emitting diodes that launches light into an edge of a light guide plate. The light guide plate distributes the light laterally across display layers in the display. One or more optical films such as brightness enhancement films and diffuser layers are interposed between the display layers and the light guide plate. The light guide plate includes light guide plate alignment features that mate with corresponding optical film alignment features in the optical films. The light guide plate alignment features may be protrusions that extend into openings such as notches or holes in the optical films. The light guide plate may have a protruding portion that extends around a periphery of the light guide plate and surrounds a perimeter of the optical films.
-
Citations
22 Claims
-
1. A backlight assembly configured to provide backlight illumination to display layers in a display, comprising:
-
a light guide plate having a surface from which the backlight illumination is provided to the display layers, wherein the light guide plate has at least one light guide plate alignment feature; and at least one optical film having an optical film alignment feature that is configured to mate with the at least one light guide plate alignment feature to laterally align the at least one optical film with respect to the light guide plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A display, comprising:
-
display layers configured to display an image; a light guide plate having a surface from which backlight illumination is provided to the display layers, wherein the light guide plate comprises a protruding portion that protrudes out from the surface towards the display layers and that extends along a periphery of the light guide plate; and at least one optical film interposed between the light guide plate and the display layers, wherein the protruding portion surrounds a perimeter of the at least one optical film. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
17. An electronic device, comprising:
-
an electronic device housing; display layers mounted in the electronic device housing; a light guide plate having a surface from which backlight illumination is provided to the display layers, wherein the light guide plate comprises at least one alignment feature that protrudes from the surface towards the display layers; and a stack of optical films interposed between the display layers and the light guide plate, wherein the stack of optical films comprises at least one light guide plate receiving portion configured to mate with the at least one alignment feature to laterally align the stack of optical films with respect to the light guide plate. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification