Abstract: The present application provides a mold for making a waveguide lens and a waveguide lens, relating to the technical field of electronic products. The mold for making a waveguide lens comprises: a first mold comprising a first slot defined on one side, the first slot being configured to accommodate an optical waveguide assembly with optical assist function; a second mold configured for molding with the first mold, the second mold comprising a second slot defined on a side of the second mold facing the first mold, wherein the second mold is close to a first surface of the optical waveguide assembly, and the second slot is configured for molding a first lens on the first surface. The present application can reduce the thickness of the waveguide lens while reducing the process of preparing the waveguide lens.

Abstract: The invention relates to a heat management structure with graphene and copper, and a formation method thereof, comprising a copper foil layer provided, then forming a graphene layer on the copper foil layer surface, and forming an electroplating copper layer on the graphene layer surface, and eventually forming an electroplating copper layer-graphene layer-copper foil layer sandwich heat management structure.

Abstract: A beamforming transmission device includes a baseband processing unit, at least one radio frequency unit, and an antenna array unit. The baseband processing unit provides at least one data stream and generates a control signal according to channel state information of at least two pieces of user equipment, wherein the data stream includes data of at least two pieces of user equipment. The radio frequency unit receives the data stream signal and generates at least one radio frequency signal. The antenna array unit receives the radio frequency signal and the control signal and adjusts gains and phases of the antenna array unit according to the control signal such that the radio frequency signal can be formed as a shared beamforming signal for transmitting to at least two pieces of user equipment, wherein the shared beamforming signal includes the data of at least two pieces of user equipment.

Abstract: A beamforming transmission device includes a baseband processing unit, at least one radio frequency unit, and an antenna array unit. The baseband processing unit provides at least one data stream and generates a control signal according to channel state information of at least two pieces of user equipment, wherein the data stream includes data of at least two pieces of user equipment. The radio frequency unit receives the data stream signal and generates at least one radio frequency signal. The antenna array unit receives the radio frequency signal and the control signal and adjusts gains and phases of the antenna array unit according to the control signal such that the radio frequency signal can be formed as a shared beamforming signal for transmitting to at least two pieces of user equipment, wherein the shared beamforming signal includes the data of at least two pieces of user equipment.

Abstract: A reduced graphene oxide-based biosensor includes a nano-structure field-effect transistor including a channel region which includes a reduced graphene oxide having a linking moiety to be bonded to a receptor specific to an analyte, and which is represented by a formula of —(C?O)—X—COOH, wherein X represents a C1-C3 alkenylene group or a C1-C3 alkylene group.

Abstract: A touch display device of increased flexibility and reduced thickness includes a touch panel. The touch panel includes a substrate and a touch sensing layer formed on the substrate. The substrate is made of polyvinylidene fluoride. The present disclosure also provides a method for making such touch display device. The substrate of the touch display device of the present disclosure is made of polyvinylidene fluoride, which not only increases the flexibility of the touch display device, but also reduces the thickness of the touch display device.

Abstract: A touch panel embedded in an electronic device defines a display region and a non-display region. The touch panel includes a cover and a touch sensing layer bonded on the cover. The touch sensing layer includes a substrate, a touch sensor disposed on the substrate in the display region, a peripheral circuit structure disposed on the substrate in the non-display region, and a decoration layer. The peripheral circuit structure is electrically connected with the touch sensor for receiving signals from the touch sensor. The decoration layer is disposed in the touch sensing layer.

Abstract: A touch panel embedded in an electronic device defines a display region and a non-display region. The touch panel includes a cover and a touch sensing layer bonded on the cover. The touch sensing layer includes a substrate, a touch sensor disposed on the substrate in the display region, a peripheral circuit structure disposed on the substrate in the non-display region, and a decoration layer. The peripheral circuit structure is electrically connected with the touch sensor for receiving signals from the touch sensor. The decoration layer is disposed in the touch sensing layer.

Abstract: A reduced graphene oxide-based biosensor includes a nano-structure field-effect transistor including a channel region which includes a reduced graphene oxide having a linking moiety to be bonded to a receptor specific to an analyte, and which is represented by a formula of —(C?O)—X—COOH, wherein X represents a C1-C3 alkenylene group or a C1-C3 alkylene group.

Abstract: A chemically-modified graphene includes a graphene layer and a plurality of functional groups that are grafted to the graphene layer and each of which is represented by —CO—R—COOH, wherein R is an optionally substituted C1-C5 alkylene group or an optionally substituted C1-C5 alkenylene group. A method for producing a chemically-modified grapheme includes subjecting a cyclic anhydride and graphite to a Friedel-Crafts reaction in the presence of a Lewis acid.

Abstract: This invention is directed to a polyamic acid represented by the following formula (I), and an electrode having an active layer made from the polyamic acid of formula (I).

Abstract: An electrode for an electrochemical device includes a conductor, and an active layer formed on the conductor and including a polybenzimidazole polymer that contains at least one of the functional group of the following formula:

Abstract: A method for preparing a carboxylic polybenzimidazole includes reacting a polybenzimidazole polymer with a cyclic acid anhydride to form the carboxylic polybenzimidazole.

Abstract: A carboxylic polybenzimidazole includes at least one of the following functional group of formula (I): wherein G is a group containing a carboxylic acid end group or a carboxylated end group.

Abstract: This invention is directed to a polyamic acid represented by the following formula (I), and an electrode having an active layer made from the polyamic acid of formula (I).

Abstract: A chemically-modified graphene includes a graphene layer and a plurality of functional groups that are grafted to the graphene layer and each of which is represented by —CO—R—COOH, wherein R is an optionally substituted C1-C5 alkylene group or an optionally substituted C1-C5 alkenylene group. A method for producing a chemically-modified grapheme includes subjecting a cyclic anhydride and graphite to a Friedel-Crafts reaction in the presence of a Lewis acid.

Abstract: An electrode for an electrochemical device includes a conductor and an active layer. The active layer is formed on the conductor and includes a polymer with a functional group represented by the following formula (A) or (B), and a carboxylated material containing a carboxylic acid group.

Abstract: An electrode for an electrochemical device includes a conductor, and an active layer formed on the conductor and including a polybenzimidazole polymer that contains at least one of the functional group of the following formula:

Abstract: A carboxylic polybenzimidazole includes at least one of the following functional group of formula (I): wherein G is a group containing a carboxylic acid end group or a carboxylated end group.

Abstract: A method for preparing a carboxylic polybenzimidazole includes reacting a polybenzimidazole polymer with a cyclic acid anhydride to form the carboxylic polybenzimidazole.