Abstract: A visual acuity test method, apparatus and system that may be utilized as an automatic test of the visual acuity level of a test object, to reduce the problem of complex operation of the existing visual acuity test solution. The method is applied by an apparatus with a display screen, and comprises: displaying a test picture including at least one optotypes on a display screen, and determining an active optotype for visual acuity test from the optotypes of the test picture according to a preset rule. The method includes the steps of obtaining indicating information of the test object for the active optotype of the test picture; and determining the visual acuity level of the test object according to orientations represented by active optotypes of at least one test pictures and the indicating information of the visual acuity test object for the active optotypes of at least one test picture.

Abstract: An automatic unattended-monitoring visual acuity inspection device is disclosed. The inspection device includes an inspection panel, an inspector and an isolation wall arranged opposite to the inspection panel. The isolation wall is provided with a wireless signal transmitter configured to transmit a visual acuity indication signal to the wireless signal receiver through a network. The wireless signal receiver is configured to transmit the received visual acuity indication signal to a processor. The processor is configured to process the visual acuity indication signal and transmit a process feedback to the inspection panel. The device may prevent achieving a high level of visual acuity of the person to be inspected by cheating behaviors, thereby highly inspecting a real visual acuity level of the person to be inspected.

Abstract: Provided are an electronic apparatus, an electronic system and a control method thereof. The electronic apparatus is used for controlling a multi-field-of-view display apparatus, wherein the multi-field-of-view display apparatus has multiple view areas each of which covers the entire display area of the multi-field-of-view display apparatus and displays one picture respectively, and the electronic apparatus controls the multi-field-of-view display apparatus such that at least two pictures among the pictures simultaneously displayed in the view areas are based on different angles of view. The electronic apparatus is applicable to multi-person games, and enables multiple players to view pictures with different game scenes through the same screen, and would not reduce visual experience due to reduction of screen area that needs to be viewed by each player.

Abstract: The present invention discloses a lighting device provided with an electronic lamp cover (30) surrounding a light emitting component (20). The electronic lamp cover (30) can present different light transmitting states according to different voltage values applied thereto within an operation voltage range so as to change the illumination angle and illumination brightness of the illumination light of the lighting device.

Abstract: Embodiments of the present invention provide an assembled wearable device. The assembled wearable device comprises a first functional module, a second functional module and a connecting structure for connecting the first functional module and the second functional module, wherein the connecting structure comprises a first inserting member and a first receiving member matching each other, the first receiving member is configured for receiving the first inserting member so that the first inserting member is confined to the first receiving member in at least one direction.

Abstract: Embodiments of the present disclosure relate to a field of vision testing technique, and particularly to a vision testing apparatus and method. The vision testing method and apparatus can concurrently test vision and ability for distinguishing colors concurrently by using vision synthetic-testing pictures, wherein a character in the vision synthetic-testing picture is used to test the vision, and color combination in the vision synthetic-testing picture is used to test the ability for distinguishing colors.

Abstract: This disclosure relates to the technical field of display apparatus, and in particular to a display apparatus and a vehicle utilizing the same. The display apparatus comprises a transmitting device for forming privacy images on a front windshield of a vehicle body and polarized glasses for viewing the privacy images. In the above technical solutions, privacy images are formed on the front windshield of the vehicle body by the transmitting device, such that the formed images will not interfere with the driver's driving. Meanwhile, the passengers can view the images on the front windshield by wearing the polarized glasses. By using the above transmitting device to form privacy images on the front windshield, an area of display is enlarged to facilitate the passengers' viewing. Passengers sitting in the rear portion of the vehicle can clearly view the images, and the visual effect during the passengers' viewing is improved.

Abstract: An automatic unattended-monitoring visual acuity inspection device is disclosed. The inspection device includes an inspection panel, an inspector and an isolation wall arranged opposite to the inspection panel. The isolation wall is provided with a wireless signal transmitter configured to transmit a visual acuity indication signal to the wireless signal receiver through a network. The wireless signal receiver is configured to transmit the received visual acuity indication signal to a processor. The processor is configured to process the visual acuity indication signal and transmit a process feedback to the inspection panel. The device may prevent achieving a high level of visual acuity of the person to be inspected by cheating behaviors, thereby highly inspecting a real visual acuity level of the person to be inspected.

Abstract: An illumination device, dedicated glasses thereof, an analyzer thereof and an illumination system are provided. The illumination device includes a support member and a liquid crystal display panel mounted on the support member. The liquid crystal display panel includes a display area and a light emitting area, the liquid crystal display panel is provided with a first polarization sheet at its light incoming side in areas corresponding to the display area and the light emitting area, and is provided with a second polarization sheet at its light outgoing side only in area corresponding to the display area. The illumination device emits white light and can be used as an ordinary lamp because its light emitting area cannot be observed in the naked eye state, and when observed through the dedicated glasses or the analyzer, the content of the secret information displayed by the liquid crystal display panel can be seen.

Abstract: A lighting display device is disclosed in embodiments of the present invention.

Abstract: A visual acuity test method, apparatus and system that may be utilized as an automatic test of the visual acuity level of a test object, to reduce the problem of complex operation of the existing visual acuity test solution. The method is applied by an apparatus with a display screen, and comprises: displaying a test picture including at least one optotypes on a display screen, and determining an active optotype for visual acuity test from the optotypes of the test picture according to a preset rule. The method includes the steps of obtaining indicating information of the test object for the active optotype of the test picture; and determining the visual acuity level of the test object according to orientations represented by active optotypes of at least one test pictures and the indicating information of the visual acuity test object for the active optotypes of at least one test picture.

Abstract: The general inventive concepts provide a lighting system, a light device and a receiving device. The lighting device applies a liquid crystal display panel as a luminaire, the liquid crystal display panel has a first polarizer only on a light input side. The receiving device comprises a second polarizer and a magnifying component. The second polarizer is used for polarization-analyzing an emitted light, which is emitted from the liquid crystal display panel and carries confidential information. Light passes through the first polarizer and becomes linearly polarized light, which linearly polarized light is emitted after passing through the liquid crystal display panel. The confidential information carried therein cannot be identified by the naked eye. Therefore, the human eye regards it as white light, the lighting device can thus be used as a lighting luminaire.

Abstract: The present disclosure provides a wearable device, including a main body including a central processing unit and a display panel; and a connection member electrically connected to the main body and including a plurality of functional modules, at least one of which is provided with a control assembly configured to control an operational state of the functional module where the control assembly is located.

Abstract: An embodiment of the present invention discloses a display apparatus comprising: a display panel having a first side and a second side in opposite to the first side; a first polarizer arranged on the first side of the display panel; and a second polarizer arranged on either of the first side and the second side of the display panel, wherein an angle between a direction of a light transmission axis of the second polarizer and a direction of a light transmission axis of the first polarizer is adjustable.

Abstract: Embodiments of the present disclosure relate to a field of vision testing technique, and particularly to a vision testing apparatus and method. The vision testing method and apparatus can concurrently test vision and ability for distinguishing colors concurrently by using vision synthetic-testing pictures, wherein a character in the vision synthetic-testing picture is used to test the vision, and color combination in the vision synthetic-testing picture is used to test the ability for distinguishing colors.

Abstract: Provided are an electronic apparatus, an electronic system and a control method thereof. The electronic apparatus is used for controlling a multi-field-of-view display apparatus, wherein the multi-field-of-view display apparatus has multiple view areas each of which covers the entire display area of the multi-field-of-view display apparatus and displays one picture respectively, and the electronic apparatus controls the multi-field-of-view display apparatus such that at least two pictures among the pictures simultaneously displayed in the view areas are based on different angles of view. The electronic apparatus is applicable to multi-person games, and enables multiple players to view pictures with different game scenes through the same screen, and would not reduce visual experience due to reduction of screen area that needs to be viewed by each player.

Abstract: Embodiments of the present invention provide an assembled wearable device. The assembled wearable device comprises a first functional module, a second functional module and a connecting structure for connecting the first functional module and the second functional module, wherein the connecting structure comprises a first inserting member and a first receiving member matching each other, the first receiving member is configured for receiving the first inserting member so that the first inserting member is confined to the first receiving member in at least one direction.

Abstract: The present disclosure provides a wearable device, including a main body including a central processing unit and a display panel; and a connection member electrically connected to the main body and including a plurality of functional modules, at least one of which is provided with a control assembly configured to control an operational state of the functional module where the control assembly is located.

Abstract: The present invention discloses a lighting device provided with an electronic lamp cover (30) surrounding a light emitting component (20). The electronic lamp cover (30) can present different light transmitting states according to different voltage values applied thereto within an operation voltage range so as to change the illumination angle and illumination brightness of the illumination light of the lighting device.

Abstract: The present invention discloses a display system, comprising at least one jointed screen which is composed of a plurality of liquid crystal display panels jointed with each other, in which, each liquid crystal display panel is provided with a first polarizer only at a light entering side thereof, so that a visible angle at which contents displayed by the liquid crystal display panel can be seen from a light exiting side thereof is an obtuse angle; two adjacent jointed liquid crystal display panels are jointed with each other at their adjacent sides, and a joint angle formed at the light exiting side is greater than a right angle, such that the light exiting side of each display panel is located in a region covered by an angle range of the visible angle of at least one display panels other than said display panel.