Abstract: The invention provides an optical composite layer structure with a built-in touch sensitive polymer dispersed liquid crystal (PDLC) structure. The optical composite layer structure comprises an upper transparent substrate, a lower transparent substrate, an upper transparent conductive layer, a lower transparent conductive layer and a PDLC layer. A PDLC circuit and a touch sensitive circuit are provided on the upper and lower transparent conductive layers. A cable region that is electrically connected to external soft circuit cables is provided at an end of the upper transparent conductive layer and the lower transparent conductive layer to electrically connect to an external control unit. With a touch sensitive operation of a touch sensitive circuit of the optical composite layer structure, a signal instruction is provided to the control unit. The corresponding PDLC circuit may drive the corresponding regions of PDLC layer to conduct the change of light transmission of local region.

Abstract: The invention provides an optical composite layer structure with a built-in touch sensitive polymer dispersed liquid crystal (PDLC) structure. The optical composite layer structure comprises an upper transparent substrate, a lower transparent substrate, an upper transparent conductive layer, a lower transparent conductive layer and a PDLC layer. A PDLC circuit and a touch sensitive circuit are provided on the upper and lower transparent conductive layers. A cable region that is electrically connected to external soft circuit cables is provided at an end of the upper transparent conductive layer and the lower transparent conductive layer to electrically connect to an external control unit. With a touch sensitive operation of a touch sensitive circuit of the optical composite layer structure, a signal instruction is provided to the control unit. The corresponding PDLC circuit may drive the corresponding regions of PDLC layer to conduct the change of light transmission of local region.

Abstract: The invention provides an optical composite layer structure with a built-in touch sensitive polymer dispersed liquid crystal (PDLC) structure. The optical composite layer structure comprises an upper transparent substrate, a lower transparent substrate, an upper transparent conductive layer, a lower transparent conductive layer and a PDLC layer. A PDLC circuit and a touch sensitive circuit are provided on the upper and lower transparent conductive layers. A cable region that is electrically connected to external soft circuit cables is provided at an end of the upper transparent conductive layer and the lower transparent conductive layer to electrically connect to an external control unit. With a touch sensitive operation of a touch sensitive circuit of the optical composite layer structure, a signal instruction is provided to the control unit. The corresponding PDLC circuit may drive the corresponding regions of PDLC layer to conduct the change of light transmission of local region.

Abstract: The invention provides an optical composite layer structure with a built-in touch sensitive polymer dispersed liquid crystal (PDLC) structure. The optical composite layer structure comprises an upper transparent substrate, a lower transparent substrate, an upper transparent conductive layer, a lower transparent conductive layer and a PDLC layer. A PDLC circuit and a touch sensitive circuit are provided on the upper and lower transparent conductive layers. A cable region that is electrically connected to external soft circuit cables is provided at an end of the upper transparent conductive layer and the lower transparent conductive layer to electrically connect to an external control unit. With a touch sensitive operation of a touch sensitive circuit of the optical composite layer structure, a signal instruction is provided to the control unit. The corresponding PDLC circuit may drive the corresponding regions of PDLC layer to conduct the change of light transmission of local region.

Abstract: The invention provides an optical composite layer structure with a built-in touch sensitive polymer dispersed liquid crystal (PDLC) structure. The optical composite layer structure comprises an upper transparent substrate, a lower transparent substrate, an upper transparent conductive layer, a lower transparent conductive layer and a PDLC layer. A PDLC circuit and a touch sensitive circuit are provided on the upper and lower transparent conductive layers. A cable region that is electrically connected to external soft circuit cables is provided at an end of the upper transparent conductive layer and the lower transparent conductive layer to electrically connect to an external control unit. With a touch sensitive operation of a touch sensitive circuit of the optical composite layer structure, a signal instruction is provided to the control unit. The corresponding PDLC circuit may drive the corresponding regions of PDLC layer to conduct the change of light transmission of local region.

Abstract: The invention provides a smart window. The smart window comprises at least one composite layer comprising: a first soft resin sheet, a first transparent conductive layer, a second soft resin sheet, a second transparent conductive layer and a first PDLC layer. The first and second transparent conductive layers are etched to form circuit regions with different patterns, and first leads and second leads on the circuit regions are electrically connected with an external electrically driving device. The first PDLC layer is driven to present different patterns by an electric field controlled by a signal instruction of the external electrically driving device.

Abstract: A wireless controlling PDLC smart window is provided. The smart window comprises a composite layer, a control device, a wireless receiver unit and a wireless emitter unit. The control device is connected electrically with the composite layer. The wireless receiver unit is connected electrically with the control device. The wireless emitter unit is coupled to the wireless receiver unit. The wireless emitter unit may emit a message of control operation to the wireless receiver unit. The message is transmitted from the wireless receiver unit to the control device. The control device may drive the composite layer to display information or pattern after the massage is processed.

Abstract: The invention provides an optical composite layer structure with a built-in touch sensitive polymer dispersed liquid crystal (PDLC) structure. The optical composite layer structure comprises an upper transparent substrate, a lower transparent substrate, an upper transparent conductive layer, a lower transparent conductive layer and a PDLC layer. A PDLC circuit and a touch sensitive circuit are provided on the upper and lower transparent conductive layers. A cable region that is electrically connected to external soft circuit cables is provided at an end of the upper transparent conductive layer and the lower transparent conductive layer to electrically connect to an external control unit. With a touch sensitive operation of a touch sensitive circuit of the optical composite layer structure, a signal instruction is provided to the control unit. The corresponding PDLC circuit may drive the corresponding regions of PDLC layer to conduct the change of light transmission of local region.

Abstract: The invention provides an optical composite layer structure. The optical composite layer structure comprises a polymer dispersed liquid crystal (PDLC) composite layer, a first optical adhesive layer and a touch sensitive composite layer, wherein the touch sensitive composite layer is attached to the PDLC composite layer by the first optical adhesive layer. The optical composite layer structure may be attached with a fixed light transmission substrate at a side surface or two side surfaces thereof. Each the PDLC composite layer and the touch sensitive composite layer may be connected electrically with external control units by soft cables. A touch sensitive operation of the touch sensitive composite layer is used to provide a signal instruction to the control unit. Accordingly, the corresponding PDLC circuit may drive the corresponding regions of the PDLC composite layer to conduct the change of light transmission of local region.

Abstract: A prepreg is provided. The prepreg is prepared by immersing a reinforcing material into a resin composition and drying the immersed reinforcing material, wherein the resin composition has a first dielectric constant and comprises a thermosetting resin component, a hardener and a filler. The reinforcing material has a second dielectric constant, and the ratio of the first dielectric constant to the second dielectric constant ranges from 0.8 to 1.05.

Abstract: A resin composition is provided. The resin composition comprises an epoxy resin, a first filler containing calcium carbonate and hydrated magnesium silicate and a hardener, wherein the first filler has a diameter ranging from about 0.1 ?m to about 100 ?m; and the amount of the first filler is about 1 part by weight to about 150 parts by weight per 100 parts by weight of the epoxy resin.

Abstract: An auxiliary folding device for a treadmill is mounted between a main frame and the platform of the treadmill. The platform is pivotally connected to the main frame. The auxiliary folding device includes an air cylinder having opposite ends respectively pivotally connected to the main frame and the platform. The air cylinder extends when the user folds the platform toward the main frame for user to fold the treadmill in a labor-saving way.

Abstract: An auxiliary folding device for a treadmill is mounted between a main frame and the platform of the treadmill. The platform is pivotally connected to the main frame. The auxiliary folding device includes an air cylinder having opposite ends respectively pivotally connected to the main frame and the platform. The air cylinder extends when the user folds the platform toward the main frame for user to fold the treadmill in a labor-saving way.

Abstract: A strength-saving structure for a foldable treadmill exerciser including a support stand, a movable frame body and two torque springs. The inner sides of the support bars of the support stand are disposed with oppositely extending circular tubes near the bottoms thereof. An arch board is disposed in each circular tube. The circular tube and the arch board define therebetween an arch rail. An arch projecting board of the frame body is slidably fitted in the arch rail. The two torque springs are respectively fitted around the circular tubes of the support bars. A hook section of each torque spring hooks an engaging pin under the circular tube, while a backing section of the torque spring backs the bottom of the long bar of the frame body. The torque springs are prestressed. Accordingly, before the frame body is downwardly unfolded, the frame body is backed by the prestressed torque springs and a part of the gravity making the frame body fall down is offset.

Abstract: Folding structure of an exerciser including a frame body and a support stand. The support stand has two support legs on two sides of the frame body. The inner sides of the support legs are respectively disposed with a large arch plate and a small arch plate positioned under the large arch plate. The large and small arch plates define an arch rail therebetween. An arch projecting block is disposed on each long side of the frame body for slidably fitting in the arch rail. When folding or unfolding the exerciser, a pressure is exerted onto the frame body. At this time, one side of the arch projecting block is pressed against one end of the top face of the small arch plate to form a supporting point, while the other side of the arch projecting block abuts against one end of the bottom face of the large arch plate to form another supporting point.