Coretronic Patente

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A HMD device includes a projection device, at least one waveguide element and a light shielding element. The projection device is configured to provide an image beam. The at least one waveguide element has a light incident end and a light output end, where the light incident end is configured to receive the image beam, and the image beam is transmitted by the at least one waveguide element and emitted from the light output end. The light shielding element is disposed between the projection device and the light incident end of the at least one waveguide element, where the image beam has a stop, and the stop is located at external of the projection device. The HMD device of the invention effectively reduces generation of unexpected light or light spot, so as to avoid displaying noise or ghost in a display image.

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A display apparatus includes a display board and at least one image generating device. The display board has at least one display region, which includes a substrate, a decorative film, and a holographic optical element film. The decorative film is disposed on one side of the substrate. The holographic optical element film is disposed in at least one of the at least one display region, and disposed on another side of the substrate relative to the decorative film. The substrate is disposed between the decorative film and the holographic optical element film. The at least one image generating device is configured to project image light toward the holographic optical element film. The holographic optical element film is disposed between the substrate and the image generating device. The holographic optical element film converts the image light into display light, and transmits the display light toward the substrate.

An image generation unit includes a display panel, a first illumination system, and a second illumination system. The display panel has a first and a second imaging regions adjacently arranged and located on the same plane. The first illumination system provides a first light beam incident on the first imaging region at a first incident angle. The first imaging region converts the first light beam into a first image beam. The second illumination system provides a second light beam incident on the second imaging region at a second incident angle. The second imaging region converts the second light beam into a second image beam. The optical paths of the first light beam and the second light beam do not intersect with each other. The first image beam and the second image beam leave the display panel at different light exit angles.

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The disclosure provides an intelligent voice system and a method for controlling a projector. The system includes a voice assistant, a cloud service platform, a projector, and a management server. When the voice assistant receives a voice signal for controlling the projector, the voice assistant extracts keywords from the voice signal and transmits the keywords to the cloud service platform, wherein the keywords include an alias corresponding to the projector and a first control command, and the cloud service platform includes second control commands. The cloud service platform analyzes the first control command, retrieves the corresponding second control command according to the first control command, and transmits the alias of the projector and the corresponding second control command to the management server. The management server accesses/controls the projector in response to the alias and adjusts the projector as a first operating state according to the corresponding second control command.

A projection system (2) and a control method are provided. The projection system (2) includes an image control device (20) and a projector (11). The image control device (20) stores an application and includes a first communication port (202). The image control device (20) is configured to execute the application to generate a control signal. The first communication port (202) includes at least one of a teletype serial (TTYS) interface (103) and a universal serial bus (USB) interface (204). The image control device (20) is configured to transmit the control signal to a second communication port (112) of the projector through the first communication port (202), so that the projector (11) executes a function corresponding to the control signal.

A projection device (100) adapted to be placed on a vehicle and a control method of the projection device (100) are provided. The projection device (100) includes a storage device (140) storing image data of at least one projection image, a projection module (110), a distance detection device (120) measuring a projection distance from the distance detection device to a projection plane, and a control device (130) electrically connected to the storage device (140), the projection module (110), and the distance detection device (120). The control device (130) enables the projection module (110) to project the projection image and controls brightness or size of the projection image according to the corresponding projection distance. The projection device (100) is activated by opening a door (102) of the vehicle, and power of the projection device (100) comes from the vehicle. The projection image can be adjusted according to the projection distance to maintain stable brightness and the size of the projection image.

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A projection position guiding method adapted to a projection system is provided. The projection system includes a projection target, an image capturing device and a projector. The projection position guiding method includes: projecting a projection content onto the projection target by the projector to generate a projection image, the projection content includes multiple positioning grid points arranged at intervals; capturing the projection target by the image capturing device to generate a captured image, and the captured image includes at least part of the projection image; and determining whether the positioning grid points satisfy multiple recognizable conditions according to the projection image in the captured image, when it is determined that the positioning grid points include at least one unrecognizable grid point that does not satisfy at least one of the recognizable conditions, adjusting a color of the at least one unrecognizable grid point in the projection content.

A light field near-eye display device and a light field near-eye display method are provided. The light field near-eye display device includes a processor, a display panel, and a lens module. The processor calculates new ray tracing data based on a current eye relief, preset eye relief data, and preset ray tracing data, and adjusts preset image data according to the new ray tracing data to generate adjusted image data. The display panel is coupled to the processor and emits an image beam according to the adjusted image data. The lens module includes a microlens array and is disposed between the display panel and a pupil. The image beam is incident to the pupil through the lens module and displays a light field image.