Systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

A display device of an autonomous vehicle is controlled based on data collected from sensors located in or on the vehicle. The display device is used to present one or more images to a driver and/or passengers of the autonomous vehicle. The display device can be, for example, a windshield and/or other window of the vehicle. Image data can be, for example, transformed to improve visual perception by passengers in the vehicle when the images are displayed on a curved shape of the windshield.

A piezoelectric driving device includes a piezoelectric vibrating body and a driving circuit. The piezoelectric vibrating body includes a contact which extends in a first direction and comes into contact with a driven member, a first piezoelectric element which generates bending vibration in a direction intersecting with the first direction in accordance with a first driving voltage, and a second piezoelectric element which generates longitudinal vibration in the first direction in accordance with a second driving voltage. The piezoelectric vibrating body is configured such that a resonance frequency of the longitudinal vibration is higher than a resonance frequency of the bending vibration. The driving circuit sets a driving frequency of each of the first driving voltage and the second driving voltage to be equal to or higher than the resonance frequency of the longitudinal vibration.

A display apparatus and a display system are provided, and relate to the field of display device technologies, to enhance visual experience generated when a picture is displayed by using an existing reflective display window such as a windshield and a bathroom mirror, so that a sense of presence and immersion is improved. The display apparatus includes an image generation unit and an optical imaging unit. The image generation unit is configured to generate a real image whose display surface is a curved surface. The optical imaging unit is configured to perform imaging on the real image, to generate an enlarged virtual image corresponding to the real image, where a display surface of the virtual image is a curved surface adaptive to the display surface of the real image.

Disclosed is a monolithic LCD projector, including: a light source, a polarizer provided on a light emitting side of the light source and configured for converting light emitted from the light source into linearly polarized light, an LCD panel provided on a light emitting side of the polarizer and configured for modulating the linearly polarized light according to an image signal to generate modulated light, an analyzer provided on a light emitting side of the LCD panel and separated from the LCD panel and obliqued, the analyzer includes a reflective polarizer and a functional structure, and a lens provided in a reflected light path of the analyzer and configured for projecting the second polarization state light reflected by the reflective polarizer.

The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

Provided is a dynamic projection system suitable for an automobile. The system includes a light source, a collimating lens, a first microlens array, an LCD projection source and a second microlens array, wherein the dynamic projection system further comprises a polarization grating used for separating P-polarized light and S-polarized light, and a wave plate array. The wave plate array includes a plurality of ½ wave plates arranged at intervals. The polarization grating is arranged in front of the first microlens array and the second microlens array, the ½ wave plates and the LCD projection source are arranged between the first microlens array and the second microlens array, and the ½ wave plates are arranged in front of the LCD projection source to play a role in converting one of the P-polarized light and the S-polarized light into the other one of the P-polarized light and the S-polarized light.

The present invention provides a time display and image projection module involving the field of projection devices. The time display and image projection module comprises an upper casing and a bottom casing; a projector is installed between the two casings; the projector is provided with barrel structure, and an LCD screen is installed through the side wall of the projector. Through the integration of the upper casing, bottom casing, projector, PCB, LCD screen, light source component and amplification component, the LCD screen displays pictures on such small equipment as electronic alarm clock; the light source component and the amplification component enlarge and project pictures on the wall, ceiling and other places. The device has a compact structure particularly suitable for such small electronic equipment as electronic alarm clock, and is highly practical.

A projection apparatus including a casing, a light source module, a light source heat dissipation module, an optical engine module, an optical engine heat dissipation module, and a projection lens is provided. The casing has an air inlet and an air outlet. The light source module is disposed in the casing. The light source heat dissipation module is disposed in the casing and connected to the light source module. The optical engine module is disposed in the casing and includes a liquid crystal panel. The optical engine heat dissipation module is disposed in the casing and connected to the liquid crystal panel. Airflow enters the casing from the air inlet, passes through the optical engine heat dissipation module and the light source heat dissipation module in sequence, and flows out of the casing from the air outlet. The projection lens is connected to the casing.

A light guide unit includes a first phase shifter disposed on the optical path to convert the display light as the linear polarized light from the projection unit into a circularly polarized light and including a reflection surface directed to the projection member and capable of reflecting a light from the projection member side to the projection member, a second phase shifter disposed on the projection member side of the first phase shifter on the optical path and giving a ¼ wavelength phase difference to the display light converted into the circularly polarized light by the first phase shifter to convert the display light into a linear polarized light, and a linear polarizer on the projection member side of the second phase shifter on the optical path. The linear polarizer guides the display light converted into the linear polarized light by the second phase shifter toward the projection member.