High performance privacy glazing structures
First Claim
1. A privacy glazing structure comprising:
- a first pane of transparent material;
a second pane of transparent material that is generally parallel to the first pane of transparent material;
a spacer positioned between the first pane of transparent material and the second pane of transparent material to define a between-pane space, the spacer sealing the between-pane space from gas exchange with a surrounding environment and holding the first pane of transparent material a separation distance from the second pane of transparent material;
a third pane of transparent material that is generally parallel to the first pane of transparent material and the second pane of transparent material;
a fourth pane of transparent material that is generally parallel to the third pane of transparent material;
an electrically controllable optically active material positioned between the third pane of transparent material and the fourth pane of transparent material;
a first electrically conductive layer deposited over the third pane of transparent material and a second electrically conductive layer deposited over the fourth pane of transparent material, the first electrically conductive layer and the second electrically conductive layer being arranged to electrically control the electrically controllable optically active material;
a laminate layer bonding the second pane of transparent material to the third pane of transparent material, the laminate layer providing a barrier to ultraviolet light that would otherwise impinge upon the electrically controllable optically active material;
a low-emissivity coating on an interior surface of at least one of the first pane of transparent material and the second pane of transparent material facing the between-pane space.
1 Assignment
0 Petitions
Accused Products
Abstract
A privacy glazing structure may be fabricated from multiple panes of transparent material that hold an optically active material and also define a between-pane space that is separated from a surrounding environment for thermal insulating properties. The privacy glazing structure may include various functional coatings and intermediate films to enhance the performance and/or life span of the structure. For example, the privacy glazing structure may include a low emissivity coating and a laminate layer positioned between an optically active layer and an exterior environment exposed to sunlight. The low emissivity coating and laminate layer may work in combination to effectively protect the optically active layer from sunlight degradation. Additionally or alternatively, the laminate layer may impart safety and impact resistance properties to the structure.
221 Citations
30 Claims
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1. A privacy glazing structure comprising:
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a first pane of transparent material; a second pane of transparent material that is generally parallel to the first pane of transparent material; a spacer positioned between the first pane of transparent material and the second pane of transparent material to define a between-pane space, the spacer sealing the between-pane space from gas exchange with a surrounding environment and holding the first pane of transparent material a separation distance from the second pane of transparent material; a third pane of transparent material that is generally parallel to the first pane of transparent material and the second pane of transparent material; a fourth pane of transparent material that is generally parallel to the third pane of transparent material; an electrically controllable optically active material positioned between the third pane of transparent material and the fourth pane of transparent material; a first electrically conductive layer deposited over the third pane of transparent material and a second electrically conductive layer deposited over the fourth pane of transparent material, the first electrically conductive layer and the second electrically conductive layer being arranged to electrically control the electrically controllable optically active material; a laminate layer bonding the second pane of transparent material to the third pane of transparent material, the laminate layer providing a barrier to ultraviolet light that would otherwise impinge upon the electrically controllable optically active material; a low-emissivity coating on an interior surface of at least one of the first pane of transparent material and the second pane of transparent material facing the between-pane space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A privacy glazing structure comprising:
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a first pane of glass; a second pane of glass that is generally parallel to the first pane of glass; a spacer positioned between the first pane of glass and the second pane of glass to define a between-pane space, the spacer sealing the between-pane space from gas exchange with a surrounding environment and holding the first pane of glass a separation distance from the second pane of glass; a third pane of glass that is generally parallel to the first pane of glass and the second pane of glass; a fourth pane of glass that is generally parallel to the third pane of glass; a liquid crystal material having a light transmittance that varies in response to application of an electrical field positioned between the third pane of glass and the fourth pane of glass; a first electrically conductive layer deposited over the third pane of glass and a second electrically conductive layer deposited over the fourth pane of glass, the first electrically conductive layer and the second electrically conductive layer being arranged to electrically control the liquid crystal material; a first laminate layer bonding the second pane of glass to the third pane of glass, a fifth pane of glass that is generally parallel to the fourth pane of glass; a second laminate layer bonding the fourth pane of glass to the fifth pane of glass, wherein the first pane of glass is tempered glass, and the second, third, fourth, and fifth panes of glass are each formed of glass that is not thermally strengthened. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification