Provided is an optical member including: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot is formed of a liquid crystal material having a cholesteric structure, and the dot exhibits wavelength selective reflecting properties having two or more reflection peaks. By using the optical member according to the present invention, an image display device in which erroneous detection of data input is reduced can be provided.

An operation target device projects a display video onto a projection surface, which is captured by a camera. An operation detectable region specifying unit specifies respective regions where an operation is detectable and is undetectable based on image data captured by the camera. Finger and pen contact position detection units detect the operation to the operation object based on the image data captured by the camera. The operation target device displays the display video so that the region where the operation to the operation object is detectable, which is specified by the operation detectable region specifying unit, is distinguished from the region where the operation to the operation object is undetectable. In addition, the operation target device changes a display position of the operation object so that the operation object is displayed within a range of the region where the operation to the operation object is detectable.

A system (1) detects an object (100) approaching and touching a capacitive touch device (10). The system includes the capacitive touch device (10), a processor, an optical system connected to the processor and arranged to collect information on the object (100). The processor is arranged so as to classify the object (100) as a triggering object or as a non-triggering object based on this information. If the object is classified as a non-triggering object, the processor disables the execution of touch functions of the capacitive touch device (10) at the latest when at least a part of the object (100) touches the capacitive touch device (10). If the object is classified as a triggering object, at the latest when at least a part of the object touches the capacitive touch device (10), the processor executes a predetermined function on the capacitive touch device (10).

A system (1) detects an object (100) approaching and touching a capacitive touch device (10). The system includes the capacitive touch device (10), a processor, an optical system connected to the processor and arranged to collect information on the object (100). The processor is arranged so as to classify the object (100) as a triggering object or as a non-triggering object based on this information. If the object is classified as a non-triggering object, the processor disables the execution of touch functions of the capacitive touch device (10) at the latest when at least a part of the object (100) touches the capacitive touch device (10). If the object is classified as a triggering object, at the latest when at least a part of the object touches the capacitive touch device (10), the processor executes a predetermined function on the capacitive touch device (10).

Techniques for adjusting process variables in a process plant using gesture-based input on a user interface device include presenting a graphic representation associated with a process plant entity in the process plant and an indication of a process variable value corresponding to the process plant entity as measured with the actual process plant and providing a user control for receiving gesture-based input at a location on the user interface device corresponding to the graphic representation associated with the process plant entity to adjust the process variable value. In response to receiving gesture-based input from an operator to adjust the process variable value for the corresponding process plant entity, the user interface device presents an adjusted process variable value and sets the process variable in the actual process plant to the adjusted process variable value.

An optical touch device using imaging module according the present invention includes a guide light plate, at least a light source, an imaging module, at least a photosensitive unit and a microprocessor; the imaging module has at least an image reflective curved surface to image multiple contact positions to at least a photosensitive unit conveniently to form image information corresponding to the multiple contact positions so as to allow the microprocessor to generate corresponding touch signals; the images at where an object contacts the guide light plate are utilized directly to generate the touch signals instead of detecting attenuation signal of frustrated total internal reflection resulting from the object contacting the guide light plate; due to the light in the guide light plate is employed to conduct the total internal reflection propagation to attain touch control function, components needed in the touch device is reduced and the fabrication cost is saved largely.

According to an aspect of present invention provides electronic device having a multi-functional human interface, device comprising, first to fifth multi-functional input buttons, wherein each of multi-functional input buttons includes an electrode unit including a transmitter unit and a receiver unit, transmitter unit has first and second transmitters having driver signal periods different from each other, and receiver unit has first to fourth receivers having at least two scan signal periods different from each other, first receiver of fourth multi-functional input button has a scan signal period same as a scan signal period of fourth receiver of second multi-functional input button, second receiver of fourth multi-functional input button has a scan signal period same as a scan signal period of first receiver of first multi-functional input button, third receiver of fourth multi-functional input button has a scan signal period same as a scan signal period of second receiver of first multi-functional input button, and fourth receiver of fourth multi-functional input button has a scan signal period same as scan signal periods of third receiver of first multi-functional input button and first receiver of fifth multi-functional input button.

Devices and optical sensor modules are provided for provide on-screen optical sensing of fingerprints by using a under-screen optical sensor module that captures and detects returned light that is emitted by the display screen for displaying images and that is reflected back by the top surface of the screen assembly. Optical collimators are provided in the under-screen optical sensor module to enhance the optical imaging performance.

A motion sensing method is applied in a motion sensing device to imitate or repeat movement of human body or parts using a camera and a sensor. The method comprises detecting human body and adjusting rotation angle of an infrared sensor to track parts of the human body having acquired human body temperature distribution image from the camera. Human body contour image is analyzed and distances between a moving part of the human body and the motion sensing device are acquired. Determining a target contour image by reference to stored human body contour images and determining a corresponding two-dimensional motion. A target control signal is determined according to the determined operation and a relationship table defining a relationship between the number of operations and the number of control signals. The motion sensing device is controlled to act according to the determined target control signal.

A touch control detecting method applied to an electronic apparatus comprising an image sensor. The touch control detecting method comprises: (a) capturing a plurality of sensing images via the image sensor; and (b) determining if an object performs a predetermined touch control operation to the electronic apparatus, according to a brightness variation tendency of the sensing images.