A rearview assembly includes an electrochromic element. The electrochromic element includes a first substrate including a first surface and a second surface. The electrochromic element further includes a second substrate comprising a third surface and a fourth surface. The first substrate and the second substrate form a cavity. The electrochromic element includes an electrochromic medium contained in the cavity. The rearview assembly includes an image sensor directed toward the fourth surface and configured to capture near-infrared light reflected from an object and projected through the electrochromic element. The rearview assembly includes a transflective film disposed adjacent to the fourth surface having a near-infrared light transmission level and a visible light reflectance level.

Some embodiments of the present disclosure relate to a heads-up display (HUD) system. The HUD system may include a transparent support structure, an electrochromic element, and a HUD controller. The electrochromic element may be affixed to a surface of a transparent material. The HUD controller may be electrically coupled to the electrochromic element and configured to control translucence of the electrochromic element via control signals.

The present application provides a display panel and a manufacturing method of the display panel. When an electrochromic layer is completely closed, a metasurface structure and an electrowetting structure reflect a light with corresponding wavelength to form a reflection state. When the electrochromic layer is partially closed, the metasurface structure and the electrowetting structure corresponding to a part of the closed electrochromic layer reflect the light with corresponding wavelength to form the reflection state, and the light penetrates through the wetted metasurface structure and a part of the unclosed electrochromic layer to form a transparent state.

The present application provides a display panel and a manufacturing method of the display panel. When an electrochromic layer is completely closed, a metasurface structure and an electrowetting structure reflect a light with corresponding wavelength to form a reflection state. When the electrochromic layer is partially closed, the metasurface structure and the electrowetting structure corresponding to a part of the closed electrochromic layer reflect the light with corresponding wavelength to form the reflection state, and the light penetrates through the wetted metasurface structure and a part of the unclosed electrochromic layer to form a transparent state.

A method for controlling an electrochromic glass and an electrochromic glass. The electrochromic glass includes a second sensor, a processor module and an electrochromic layer. The second sensor is configured to convert an optical signal to an electrical signal and send the electrical signal to the processor module (13). The second sensor is disposed on a side of the electrochromic layer facing away from the incidence of ambient light, and a light-sensing surface of the second sensor faces in a direction toward the incidence of the ambient light. The method includes: generating an adjustment instruction based on a second illuminance of ambient light passing through an electrochromic layer, where the adjustment instruction carries a control signal; and transmitting the adjustment instruction to the electrochromic layer so that transmittance of the electrochromic layer is adjusted according to the control signal, thus controlling transmittance of electrochromic glass.

A method for controlling an electrochromic glass and an electrochromic glass. The electrochromic glass includes a second sensor, a processor module and an electrochromic layer. The second sensor is configured to convert an optical signal to an electrical signal and send the electrical signal to the processor module (13). The second sensor is disposed on a side of the electrochromic layer facing away from the incidence of ambient light, and a light-sensing surface of the second sensor faces in a direction toward the incidence of the ambient light. The method includes: generating an adjustment instruction based on a second illuminance of ambient light passing through an electrochromic layer, where the adjustment instruction carries a control signal; and transmitting the adjustment instruction to the electrochromic layer so that transmittance of the electrochromic layer is adjusted according to the control signal, thus controlling transmittance of electrochromic glass.

There is provided a small-sized HUD device having a high image display reliability and a high thermal reliability. A HUD device 1 includes: an image display unit 2 including a display panel (liquid crystal panel) 22 that displays an image, and an optical system 3 that projects image light of the displayed image onto a windshield of a vehicle, in which a virtual image of the image is visually recognized by light reflected off the windshield. In the image display unit 2, an effective display region 22a that displays the image is set to a region on a side close to one end of the display panel 22. The optical system 3 includes a first reflector 31 that reflects the image light emitted from the image display unit 2 and a second reflector 32 that reflects the reflected light of the first reflector 31 toward the windshield. The image display unit 2 is disposed to face the first reflector 31, and the display panel 22 is disposed in an attitude in which the one end faces the second reflector side 32.

There is provided a small-sized HUD device having a high image display reliability and a high thermal reliability. A HUD device 1 includes: an image display unit 2 including a display panel (liquid crystal panel) 22 that displays an image, and an optical system 3 that projects image light of the displayed image onto a windshield of a vehicle, in which a virtual image of the image is visually recognized by light reflected off the windshield. In the image display unit 2, an effective display region 22a that displays the image is set to a region on a side close to one end of the display panel 22. The optical system 3 includes a first reflector 31 that reflects the image light emitted from the image display unit 2 and a second reflector 32 that reflects the reflected light of the first reflector 31 toward the windshield. The image display unit 2 is disposed to face the first reflector 31, and the display panel 22 is disposed in an attitude in which the one end faces the second reflector side 32.

A method is directed to modifying the color in transmission of an optical system that incorporates an electrochromic device. Such a modified optical system makes it possible to combine the notions of effectiveness in the chromatic variation on the one hand, and of limitation of losses in light transmission on the other hand.

A method is directed to modifying the color in transmission of an optical system that incorporates an electrochromic device. Such a modified optical system makes it possible to combine the notions of effectiveness in the chromatic variation on the one hand, and of limitation of losses in light transmission on the other hand.