Abstract: A display apparatus includes a display panel, a mirror switching screen, a first photosensitive sensor, a first flexible circuit board and a driver board. The mirror switching screen is disposed on a light-exit side of the display panel. The first photosensitive sensor is configured to sense a light intensity of ambient light at a side of the mirror switching screen away from the display panel. The first flexible circuit board includes a bonding portion, a component portion and a wiring portion. The bonding portion is electrically connected to the mirror switching screen. The first photosensitive sensor is disposed on a side of the component portion proximate to the mirror switching portion. The wiring portion has lines electrically connected to the first photosensitive sensor and bonding pads of the bonding portion. The driver board is electrically connected to the wiring portion of the first flexible circuit board.

Abstract: The present disclosure provides a rear-view device, including a helmet and a rear-view image guiding system arranged on the helmet. The rear-view image guiding system includes a light conduction optical fiber bundle, and an objective lens group and an eyepiece lens group arranged at two ends of the light conduction optical fiber bundle respectively; the helmet includes a first cladding region and a second cladding region; the objective lens group is arranged in the second cladding region, and configured to convert received incident light into parallel light; the light conduction optical fiber bundle is configured to transmit the parallel light to the eyepiece lens group; and the eyepiece lens group is configured to converge the parallel light and transmit convergent light to an eye region of the helmet.

Abstract: A micro-electro-mechanical system and a manufacturing method thereof. The micro-electro-mechanical system includes a comb tooth structure, a spring structure, and an electrode structure. The comb tooth structure includes first comb teeth and second comb teeth arranged alternately. A cantilever beam connecting the second comb teeth is connected to the spring structure; line widths of a first comb tooth and a second comb tooth are 3-7 microns, and are not less than a distance between the adjacent first comb tooth and the second comb tooth a ratio of the length of the first comb tooth to a length of the second comb tooth is 0.7-1.5, a width of the cantilever beam is not less than the line width of the second comb tooth, and thickness of the first comb tooth and a thickness of the second comb tooth are both 300 nanometers to 500 microns.

Abstract: A display apparatus includes a display panel, a mirror switching screen, a first photosensitive sensor, a first flexible circuit board and a driver board. The mirror switching screen is disposed on a light-exit side of the display panel. The first photosensitive sensor is configured to sense a light intensity of ambient light at a side of the mirror switching screen away from the display panel. The first flexible circuit board includes a bonding portion, a component portion and a wiring portion. The bonding portion is electrically connected to the mirror switching screen. The first photosensitive sensor is disposed on a side of the component portion proximate to the mirror switching portion. The wiring portion has lines electrically connected to the first photosensitive sensor and bonding pads of the bonding portion. The driver board is electrically connected to the wiring portion of the first flexible circuit board.

Abstract: The present disclosure provides a wearable device with a rear view function, the wearable device including: a wearable main body having a front view area and a rear view area; an image guide assembly fixed on the wearable main body and crossing over the front view area and the rear view area, wherein the image guide assembly has at least one light inlet and a light outlet, the at least one light inlet is in the rear view area, and the image guide assembly is configured to transmit rear view light received by the at least one light inlet to the light outlet and emit the rear view light; and a floating imaging assembly fixed on the wearable main body, and configured to form a floating image of a rear view image in the front view area according to light emitted from the light outlet.

Abstract: The present disclosure provides an unlocking control method, an unlocking control device, an electronic apparatus, and a computer-readable storage medium. The unlocking control method for the electronic apparatus includes: obtaining an unlocking touch input; in the case that a retention time of the unlocking touch input at any one of a plurality of target positions is greater than a predetermined time threshold, generating at least one vibration excitation in accordance with the retention time; and in the case that an unlocking control signal determined in accordance with the unlocking touch input matches a predetermined unlocking password, controlling the electronic apparatus to be unlocked. The unlocking control signal includes a touch sequence of the unlocking touch input with respect to the plurality of target positions and the quantity of vibration excitations generated at each target position.