US 2026/0169341 A1Published application

Electronic devices with a front light panel layer

AssigneeAmazon Technologies, Inc.

InventorsBin Hou, Weihsin Hou

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Abstract

Systems are described for illuminating screens of electronic devices. An example display device comprises a micro LED light panel layer comprising a plurality of micro LEDs configured to direct visible light toward a reflective display layer. The example comprises a touch layer comprising a touch sensor and a substrate. The example comprises a reflective display layer comprising a color filter array comprising a plurality of color filters and an electrophoretic display comprising a plurality of pixels. The example comprises an electromagnetic resonance layer comprising a wire grid configured to generate an electromagnetic field to power a stylus device. The example comprises a pressure-sensitive adhesive layer configured to couple the reflective display layer to the electromagnetic resonance layer. The example comprises a cover lens layer comprising a glass or a plastic and is configured to shield the display device from external hazards.

Claims20

Dependent claims

An electronic reader device comprising:

a housing;
at least one processor;
at least one non-transitory computer-readable memory;
and
a display device comprising a plurality of layers, wherein the plurality of layers comprise:
a micro light emitting diode (LED) light panel layer comprising a plurality of microscopic LEDs arranged in a grid pattern, wherein a microscopic LED of the plurality of microscopic LEDs is configured to generate visible light;
a touch layer comprising at least one of a capacitive touch sensor, a resistive touch sensor, a glass substrate, or a plastic substrate, where the touch layer is configured to detect a touch input;
a reflective display layer comprising:
an electrophoretic display comprising a plurality of microcapsules suspended in a liquid between a transparent upper electrode layer and a lower electrode layer, wherein the plurality of microcapsules comprises a plurality of electrically charged black and white particles, wherein the electrophoretic display is configured to render a grayscale image based on generating an electric field by supplying current to pixel electrodes of one of the electrode layers;
and
a thin-film transistor layer configured to ;
an electromagnetic resonance layer comprising a plurality of sensors arranged in a grid pattern, wherein the electromagnetic resonance layer is configured to generate an electromagnetic field for inductive interaction with a stylus device;
at least one optically clear adhesive layer configured to mechanically couple at least the reflective display layer to either the touch layer or the micro LED light panel layer;
and
a pressure-sensitive adhesive layer configured to mechanically couple the reflective display layer to the electromagnetic resonance layer.

12 more elements

Dependencies are inferred from the claim text.