ELECTROCHROMIC TOUCHSCREEN DEVICE
First Claim
1. An electrochromic (EC) touchscreen device comprising:
- an electronic touch detector including;
a first transparent substrate covered by a first transparent flexible conductive layer,the first transparent flexible conductive layer in electrical communication with a polymer-based electrochromic material,the polymer-based electrochromic material in electrical communication with a second transparent flexible conductive layer, andthe second transparent flexible conductive layer covered by a second substrate; and
a controller configured to;
provide a first control signal to the first and second conductive layers to supply power to the electrochromic material; and
provide a second control signal to the first and second conductive layers to detect a user touch,wherein the first control signal is active and the second control signal is not active over a first duration of time, and wherein the second control signal is active and the first control signal is not active during a second duration of time that does not overlap with the first duration of time.
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Accused Products
Abstract
The invention pertains generally to an area encompassing transparent electrochromic devices and touchscreens. The invention relates to a device featuring both functions of flexible electrochromic films and touchscreens. The invention may be used as a basis for the operation of smart glass and information image displays. It can be employed in the fields of construction and automotive glazings, as it possesses the ability to change its optical state in response to the application of an electric field stimulus, and as such may be used in capacitive touchscreens.
The EC touchscreen device contains an electronic structure of touch detection that consists of the following layers as a minimum: transparent substrate coated with transparent flexible conductive layer that has a polymer-based EC material with shape memory disposed on its surface and a transparent flexible conductive layer that covers another substrate. The device is supplied with both a power unit and a control unit, designed to transmit discrete scanning signals independent of any other signal.
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Citations
20 Claims
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1. An electrochromic (EC) touchscreen device comprising:
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an electronic touch detector including; a first transparent substrate covered by a first transparent flexible conductive layer, the first transparent flexible conductive layer in electrical communication with a polymer-based electrochromic material, the polymer-based electrochromic material in electrical communication with a second transparent flexible conductive layer, and the second transparent flexible conductive layer covered by a second substrate; and a controller configured to; provide a first control signal to the first and second conductive layers to supply power to the electrochromic material; and provide a second control signal to the first and second conductive layers to detect a user touch, wherein the first control signal is active and the second control signal is not active over a first duration of time, and wherein the second control signal is active and the first control signal is not active during a second duration of time that does not overlap with the first duration of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An electrochromic (EC) touchscreen device comprising:
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first and second transparent substrates positioned opposite each other; first and second transparent flexible electrodes positioned opposite each other and between the first and second substrates, the first electrode positioned to be at least partially covered by the first substrate, and the second electrode positioned to be at least partially covered by the second substrate; a polymer-based electrochromic layer positioned between the first and second electrodes, the electrochromic layer in electrical communication with the first and second electrodes; and a controller configured to; provide a first control signal to the first and second electrodes to supply power to the electrochromic layer; and provide a second control signal to the first and second electrodes to detect a user touch, wherein the first control signal is active and the second control signal is not active over a first duration of time, and wherein the second control signal is active and the first control signal is not active during a second duration of time that does not overlap with the first duration of time. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification