Abstract: A display device and a temperature protection method thereof are provided. The display device includes a temperature sensing circuit and a control circuit. The temperature sensing circuit is disposed in a casing of the display device. The temperature sensing circuit changes a resistance value according to a temperature of the display device to generate a voltage value. The control circuit determines whether to perform at least one cooling operation according to the voltage value of the temperature sensing circuit, so as to reduce the temperature of the display device and prevent the temperature of the display device from being too high.

Abstract: The disclosure provides a light emitting device including a power conversion circuit configured to provide a power voltage, a light source module receives the power voltage, a driving circuit, and a control circuit. The driving circuit is configured to drive a plurality of light emitting units in the light source module and detect a current value flowing through each light emitting unit to generate a current signal. The control circuit is coupled to the power conversion circuit, the light source module, and the driving circuit and is configured to detect a cross-voltage of at least one of the light emitting units. The control circuit calculates a voltage offset value according to a difference between the cross-voltage and the power voltage to generate a control signal according to the voltage offset value and the current signal to accordingly control the power conversion circuit to adjust the power voltage.

Abstract: A touch display apparatus is provided. The touch display apparatus including at least one touch display unit, and the at least one touch display unit includes a first surface, a plurality of light-emitting elements, a first touch electrode layer and a second touch electrode layer. The plurality of light-emitting elements are located on the first surface. The first touch electrode layer is located on the first surface, and has a plurality of first axial electrodes extending along a first direction. The second touch electrode layer has a plurality of second axial electrodes extending along a second direction. Orthographic projections of the first axial electrodes on the first surface and orthographic projections of the second axial electrodes on the first surface commonly surround a plurality of closed regions, and the plurality of light-emitting elements are respectively located in the corresponding closed regions.

Abstract: The disclosure provides an electronic whiteboard system and an operation method. The electronic whiteboard system includes an electronic whiteboard, an electronic device, and a first writing device. The electronic whiteboard has a capacitive touch function. The electronic device is coupled to the electronic whiteboard and includes a display. The first writing device includes a first contact surface. The electronic whiteboard receives a first touch input of the first contact surface and generates a first signal strength corresponding to the first touch input. The electronic device displays the first touch input on the display in a first color corresponding to the first signal strength. The electronic whiteboard system and the operation method of the disclosure can display the color corresponding to the signal strength of the touch input on the display of the electronic whiteboard system.

Abstract: An electronic whiteboard, an electronic whiteboard system, and a control method thereof are provided. The electronic whiteboard includes a plurality of color selecting regions and a track input region. The color selecting regions respectively correspond to a plurality of track colors. Each color selecting region serves to receive a first touch operation and generates a color setting signal according to the first touch operation. The track input region receives a second touch operation and generates a touch point reporting signal according to the second touch operation. The touch point reporting signal serves to construct a writing track, and the color setting signal serves to set a color of the writing track. The electronic apparatus generates an output file according to the writing track and displays file contents of the output file in the set color on the display panel according to the color setting signal.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A touch display system and a correction method thereof are provided. A correction image is displayed on a touch display surface of the touch display system, where the touch display surface has an electrode circuit layer and an alignment arrangement disposed thereon, the alignment arrangement has a plurality of mark patterns used for forming alignment regions, the electrode circuit layer has electrode sensing regions, and each of the alignment regions and each of the electrode sensing regions have a predetermined proportion relationship there between. A position corresponding relationship between the correction image and each of the alignment regions on the touch display surface is corrected according to the capturing image including the correction image and the mark patterns. The touch display system and the correction method thereof may effectively save a time required for correcting touch points and improve correction accuracy of the touch points.

Abstract: 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.

Abstract: 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.

Abstract: A touch device includes a flexible capacitive touch film and a flexible composite layer. The flexible composite layer is disposed at the flexible capacitive touch film. A material of the flexible composite layer includes one of a magnetizable material and a magnetic material. The flexible composite layer is adapted to attract an object via a magnetic attraction force generated between the flexible composite layer and the object so that the object is capable of being attached on the flexible capacitive touch film.

Abstract: 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.

Abstract: 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.

Abstract: An interactive display system includes a video disposition circuit, a display module, an event detection module, an event processing circuit, and a position determination circuit. The video disposition circuit receives different video frames of video source apparatuses, disposes the video frames in a display frame, and outputs frame disposition information. The display module receives and displays the display frame. The event detection module senses an interactive event in the display frame and generates a detection signal. The event processing circuit generates interactive position information according to the detection signal. The position determination circuit selects a corresponding video source apparatus from the video source apparatuses according to the interactive position information and the frame disposition information, and sends event coordinate data corresponding to the interactive position information to the corresponding video source apparatus.

Abstract: A touch projection screen includes a capacitive touch sensing layer and a substrate. The capacitive touch sensing layer includes a first surface, a second surface opposite to the first surface, a plurality of first sensing wires, a plurality of second sensing wires and a circuit connection unit. The substrate covers on the first surface. Any two of the first sensing wires don't intersect with each other. Any two of the second sensing wires don't intersect with each other. The first and second sensing wires are alternatively arranged in grid to define a touch sensing area and an edge area is around at least part of the touch sensing area. Each of the first and second sensing wires includes a wire and an insulating layer covering the part of the wire located in the touch sensing area. The circuit connection unit is electrically connected to the wires in the edge area.

Abstract: 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.

Abstract: A signal filtering device is provided. A photoelectric conversion unit is used to convert a light signal into an electric signal, and an input signal adjusting unit is used to decrease a DC component of the electric signal flowing through a DC filtering unit and adjust an AC component of the electric signal.

Abstract: 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.