Method of cutting a panel using a starter crack and a glass panel including a starter crack
First Claim
Patent Images
1. A method, comprising:
- forming a solid-state electrochromic device over a substrate;
creating a starter crack on the substrate;
one of a laser heating and electrothermal heating the starter crack; and
cooling the heated starter crack to form the panel, wherein the panel has an edge with;
the starter crack; and
a laser cut border or an electrothermally cut border, wherein the laser cut border or the electrothermally cut border extends from the starter crack,wherein a finished panel includes the solid-state electrochromic device and the starter crack, and the starter crack does not increase the risk of cracking or fracturing in the panel due to thermal stress after formation of the panel.
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Abstract
The disclosure is directed to a cutting process involving: (a) creating a starter crack using a scribe wheel, (b) application of laser or electrothermal heating, and (c) subsequent cooling from a gas or an aerosol jet, as the laser beam and cooling jet move along the desired cutting line. The cutting process can be implemented for cutting a glass panel or other substrate into a plurality of smaller panels. The starter crack may be created on any of the smaller panels within about 10 mm to about 20 mm from the corner of the smaller panel.
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Citations
20 Claims
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1. A method, comprising:
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forming a solid-state electrochromic device over a substrate; creating a starter crack on the substrate; one of a laser heating and electrothermal heating the starter crack; and cooling the heated starter crack to form the panel, wherein the panel has an edge with; the starter crack; and a laser cut border or an electrothermally cut border, wherein the laser cut border or the electrothermally cut border extends from the starter crack, wherein a finished panel includes the solid-state electrochromic device and the starter crack, and the starter crack does not increase the risk of cracking or fracturing in the panel due to thermal stress after formation of the panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electrochromic panel comprising:
a glass panel having an edge with; a starter crack; and a laser cut border or an electrothermally cut border, wherein the laser cut border or the electrothermally cut border extends from the starter crack; and a solid-state electrochromic device overlying the glass panel, wherein the electrochromic panel includes the solid-state electrochromic device and the starter crack.
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20. A method comprising:
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providing an electrochromic panel comprising; a glass panel having an edge with; a starter crack; and a laser cut border or an electrothermally cut border, wherein the laser cut border or the electrothermally cut border extends from the starter crack; and a solid-state electrochromic device overlying the glass panel, wherein the electrochromic panel includes the solid-state electrochromic device and the starter crack; and exposing the electrochromic panel to a thermal stress, wherein the starter does not increase the risk of cracking or fracturing in the electrochromic panel due to exposure to the thermal stress.
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Specification