US 8,941,795 B2Granted

Electronic device with backlit display

AssigneeApple Inc.

InventorsAdam T. Garelli, Jun Qi, Victor H. Yin, Thomas W. Wilson, Jr., Dinesh C. Mathew, Bryan W. Posner, Keith J. Hendren, Peteris K. Augenbergs

Life of this patent

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Abstract

An electronic device may have a liquid crystal display with backlight structures. The backlight structures may produce backlight that passes through display layers in the display. The display layers may include color filter elements, a liquid crystal layer, and a thin-film transistor layer. The color filter elements may be interposed between the thin-film transistor layer and the backlight structures or the thin-film transistor layer may be interposed between the color filter elements and the backlight structures. The backlight structures may be formed from optical fiber, a two-dimensional array of light-emitting diodes, a light guide plate that includes a rectangular recess for receiving optical films, or light guide plate structures that include internal light scattering structures. A light guide plate may be provided with alignment features that mate with alignment features on optical films.

Claims13

Dependent claims

A display, comprising:

an outer display layer;
an inner display layer;
a two-dimensional light-emitting diode array that produces display backlight, wherein the light-emitting diode array comprises a first substrate and a plurality of vertical and horizontal control lines on the first substrate that control the operation of each light-emitting diode in the array individually;
a layer of liquid crystal material between the outer display layer and the inner display layer, wherein the outer display layer comprises a second substrate and comprises thin-film transistors, wherein the inner display layer comprises a polarizer layer that is interposed between the layer of liquid crystal material and the two-dimensional light-emitting diode array;
and
a sealant formed on a surface of the polarizer layer, wherein the sealant contains the liquid crystal material on the surface of the polarizer layer and wherein the polarizer layer is mounted directly to the first substrate.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/332,228Filed 20 Dec 2011
Published: US 2013/0155351 A120 Jun 2013
Granted: 27 Jan 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G02B 6/001
The light guides being of the fibre type: the light being emitted along at least a portion of the lateral surface of the fibre
G02B 6/0006
The light guides being of the fibre type: coupling light into the fibre
G02B 6/0068
Characterised by the light source being coupled to the light guide: arrangements of plural sources, e.g. multi-colour light sources
G02B 6/0073
Characterised by the light source being coupled to the light guide: light emitting diode [LED]