Coretronic Corporation

Nan-Jiun Yin

Pen-Ning Kuo

Kun-Rong Chang

Ming-Lung Tsai

Wen-Chang Chien

Hung-Lin Lee

Shiuan-Ting Lin

Chun-Ping Wang

Chih-Heng Fan Chiang

Yen-Hsien Su

Chen-Kun Liu

A touch projection screen includes a substrate, a first touch layer, a second touch layer, a reflective projection film and a circuit board. The substrate has a first surface and a second surface. The first touch layer is disposed on the first surface and extends around an edge of the substrate to cover a part of the second surface of the substrate. The second touch layer is disposed on the first touch layer and extends around an edge of the substrate to cover a part of the second surface of the substrate. The reflective projection film is disposed on the second touch layer. The circuit board is disposed on the second surface of the substrate and electrically connects the first and second touch layers. A touch projection system includes the touch projection screen and a projection device. The projection device projects an image beam onto the touch projection screen.

Touch projection screen and touch projection system

An electronic whiteboard and a touch sensing signal transferring method thereof are provided. The electronic whiteboard includes a touch area. A first signal transmission port and a second signal transmission port are disposed on the electronic whiteboard, and a touch sensing signal detected from the touch area is transmitted to the signal transmission port coupled to a signal receiving apparatus.

Electronic whiteboard and touch sensing signal transferring method thereof

A touch projection screen including a substrate, touch layers, and a reflective projection film is provided. The touch layers and the reflective projection film are sequentially disposed on the substrate, and the touch layers are located between the substrate and the reflective projection film. Each of the touch layers comprises a base layer and an electrode pattern disposed on the base layer. Each electrode pattern includes a plurality of electrode line sets. Each electrode line set includes a plurality of electrode lines and a plurality of electrode segments. The electrode lines are arranged to be parallel to each other. An included angle between each of the electrode segments and one of the electrode lines is an acute angle. Two ends of each electrode segment are connected to the corresponding electrode lines. In addition, a touch projection system including the touch projection screen and a projection device is provided.

Touch projection screen and projection system

A touch projection screen including a first substrate, a plurality of first touch layers, a plurality of second touch layers, and a reflective projection film is provided. The first touch layers are disposed on the first substrate and at least two of the first touch layers are arranged adjacent to each other. Each of the first touch layers includes a first base layer and a first patterned electrode disposed on the first base layer. The second touch layers are disposed on the first touch layers and at least two of the second touch layers are arranged adjacent to each other. Each of the second touch layers includes a second base layer and a second patterned electrode disposed on the second base layer. The reflective projection film is disposed on the second touch layers. A manufacturing method of the touch projection screen is also provided.

Touch projection screen and manufacturing method thereof

The invention provides a recordable display apparatus, which uses a converting unit to convert the digital image signal into a specific image signal, in which the specific image signal has a signal format acceptable by the multimedia processor. The multimedia processor is used for integrating the specific image signal and the sound signal produced by the sound-receiving unit during receiving and recording the ambient sound into an audio/video (AV) recording data.

Recordable display apparatus

A light source module is adapted for a projection apparatus. The projection apparatus has a main board. The light source module includes a base, a lighting element, a flexible printed circuit, and a plurality of metal elastic elements. The base has a circuit layer. The lighting element is disposed on the base and electrically connected to the circuit layer. The flexible printed circuit is assembled on the base and electrically connected to the circuit layer. The metal elastic elements are adapted for being fixed to the main board to be contacted with the flexible printed circuit, such that the flexible printed circuit is electrically connected to the main board. The lighting element of the light source module is electrically connected to the main board via the flexible printed circuit and the metal elastic elements, such that a wiring space between the light source module and the main board is reduced.

Light source module

A wireless rechargeable battery includes a housing, a circuit module, an energy storage unit, and a plurality of electrodes. The wireless rechargeable battery is adapted to be disposed on a wireless charging device to be wirelessly charged. The circuit module includes a receiving unit and a power management unit. The receiving unit is disposed in the housing and adapted to receive electric energy from the wireless charging device. The power management unit is disposed in the housing and electrically coupled to the receiving unit. The energy storage unit is disposed in the housing and electrically coupled to the power management unit. The electric energy is adapted to be inputted to the energy storage unit via the power management unit. The electrodes are disposed on the housing and electrically coupled to the power management unit. The electric energy is adapted to be outputted to the electrodes via the power management unit.

Wireless rechargeable battery

A projection system and an expansion module adapted to a projector are provided. The projection system includes a projector and an expansion module. The expansion module includes a housing, a logic circuit, and an output port. The logic circuit is disposed in the housing to control an operation of the expansion module. The output port is disposed in the housing and coupled to the logic circuit. The output port is connected to an input port of the projector and outputs a data stream to the input port, such that the projector generates an image and projects the image according to the data stream.

Projection system and expansion module

A keyboard set includes a keyboard unit, and a micro projector. The keyboard unit has a first housing, a video signal port and a first lock structure. The video signal port and the first lock structure are disposed in the first housing. The micro projector has a second housing, a signal line, and a second lock structure. The signal line is connected to the video signal port of the keyboard unit. The second lock structure is disposed on the second housing, and capable of combining with the first lock structure, for the micro projector to be fixed to the keyboard unit.

Keyboard set having a micro projector

A projection apparatus comprises a projection control unit, power supply device and fan. The projection control unit generates an image beam. The power supply device comprises a filter and voltage driving unit. The voltage driving unit is coupled to the filter and comprises a voltage-regulation feedback unit and current amplification component. The filter receives a PWM signal and accordingly outputting a first DC voltage. The voltage-regulation feedback unit receives the first DC voltage and outputs a second DC voltage. The current amplification component is coupled to the voltage-regulation feedback unit for receiving an operational voltage and the second DC voltage, current-amplifying the second DC voltage, and accordingly outputting a driving voltage, which is fed back to the voltage-regulation feedback unit. The voltage-regulation feedback unit regulates the driving voltage according to the first DC voltage. The fan receives the driving voltage for releasing heat of the projection control unit.

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Hsin-Chu, Taiwan

Nan-Jiun Yin