Structures and manufacturing methods for glass covered electronic devices
First Claim
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1. An impact resistant display device comprising:
- a first thin glass layer having a thickness less than 400 micrometers;
a second base glass layer having a thickness of from 0.1 to 0.5 mm;
an adhesive layer positionable between the first thin glass layer and the second base glass layer having a thickness of 200 micrometers or less, wherein the adhesive layer is selected based on one or more of a GPa measurement and a Young'"'"'s Modulus measurement for the adhesive layer; and
a sensor layer positioned between the first thin glass layer and the second base glass layer dimensioned to cover at least a portion of a height and width of the first thin glass layer or the second base glass layer wherein the sensor layer is adaptable to communicate with a printed circuit board,wherein the impact resistant display device has a total thickness of less than 800 micrometers and is constructed to pass a ball drop test of 2 grams at greater than 4 feet,wherein an element to be sensed is capable of being applied and/or swiped on the first thin glass layer, wherein the element to be sensed comprises a finger of a user, andwherein the adhesive layer comprises several layers of different materials, and a modulus averaged by thickness through the several layers is greater than 1 GPa.
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Abstract
The disclosure is directed to electronic device displays which are constructed to withstand damage from an impact resistance test wherein a steel ball of 2 g having a diameter of 8 mm is dropped from a designated height greater than 1 ft, more preferably greater than 2 ft, even more preferably greater than 3 ft, still even more preferably greater than 4 ft, yet even more preferably greater than 5 ft and even more preferably greater than 6 ft. The displays are configured using, for example, ultrathin glass adhered to a base glass, wherein the adhesive layer is optimized for thinness and stiffness.
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Citations
17 Claims
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1. An impact resistant display device comprising:
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a first thin glass layer having a thickness less than 400 micrometers; a second base glass layer having a thickness of from 0.1 to 0.5 mm; an adhesive layer positionable between the first thin glass layer and the second base glass layer having a thickness of 200 micrometers or less, wherein the adhesive layer is selected based on one or more of a GPa measurement and a Young'"'"'s Modulus measurement for the adhesive layer; and a sensor layer positioned between the first thin glass layer and the second base glass layer dimensioned to cover at least a portion of a height and width of the first thin glass layer or the second base glass layer wherein the sensor layer is adaptable to communicate with a printed circuit board, wherein the impact resistant display device has a total thickness of less than 800 micrometers and is constructed to pass a ball drop test of 2 grams at greater than 4 feet, wherein an element to be sensed is capable of being applied and/or swiped on the first thin glass layer, wherein the element to be sensed comprises a finger of a user, and wherein the adhesive layer comprises several layers of different materials, and a modulus averaged by thickness through the several layers is greater than 1 GPa. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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6. An impact resistant display device, comprising:
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a first thin glass layer having a thickness less than 400 micrometers; a second base glass layer having a thickness of from 0.1 to 0.5 mm; an adhesive layer positionable between the first thin glass layer and the second base glass layer having a thickness of 200 micrometers or less, wherein the adhesive layer is selected based on one or more of a GPa measurement and a Young'"'"'s Modulus measurement for the adhesive layer; and a sensor layer positioned between the first thin glass layer and the second base glass layer dimensioned to cover at least a portion of a height and width of the first thin glass layer or the second base glass layer wherein the sensor layer is adaptable to communicate with a printed circuit board, wherein the impact resistant display device has a total thickness of less than 800 micrometers and is constructed to pass a ball drop test of 2 grams at greater than 4 feet, wherein an element to be sensed is capable of being applied and/or swiped on the first thin glass layer, wherein the element to be sensed comprises a finger of a user, and wherein the adhesive layer comprises several layers of different materials, and a modulus averaged by thickness through the several layers is greater than 1 GPa.
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Specification