A method for switching a screen state, a terminal, and computer-readable medium are provided. The method includes: transmitting a transmission sound wave when it is detected that the screen state of the terminal is in a light-on state during a voice communication session, the transmission sound wave being a sound wave of a pre-defined frequency; determining a target detection region when a target receiving sound wave is received through a plurality of pre-installed sound wave receiving devices, the target receiving sound wave being formed by reflecting the transmission sound wave by a target object; and switching the screen state of the terminal from the light-on state into a light-off state when it is determined that the target object is located in the target detection region.

A method for switching a screen state, a terminal, and computer-readable medium are provided. The method includes: transmitting a transmission sound wave when it is detected that the screen state of the terminal is in a light-on state during a voice communication session, the transmission sound wave being a sound wave of a pre-defined frequency; determining a target detection region when a target receiving sound wave is received through a plurality of pre-installed sound wave receiving devices, the target receiving sound wave being formed by reflecting the transmission sound wave by a target object; and switching the screen state of the terminal from the light-on state into a light-off state when it is determined that the target object is located in the target detection region.

An electronic device is provided. The electronic device includes: a display device including a plurality of light-emitting elements for displaying an optical image on a front side of the display device; an illumination element integrated into the display device and configured to emit light for illuminating a scene in front of the front side of the display device; an optical sensor configured to sense reflections of the light from the scene; an optical transmitter configured to transmit an optical control signal encoded with control information for controlling light emission by the illumination element; and an optical receiver integrated into the display device and configured to receive the optical control signal and generate an electrical control signal based on the optical control signal. The electronic device further includes a driver circuit integrated into the display device and configured to drive the illumination element based on the electrical control signal.

Some embodiments of the present disclosure relate to a decorative ring, a functional module and a mobile terminal. The decorative ring includes a body portion, a sidewall portion and a light guide portion, wherein the sidewall portion encloses a peripheral side of the body portion to form a accommodating region, and the accommodating region is configured to accommodate a part of the camera module; and the decorative ring has an inner face and outer face opposite the inner face, the inner face defines the accommodating region, and the light guide portion enables light to transmit from the side where the inner face positioned to the side where the outer face positioned.

A colored light filtration apparatus for changing the light color emitted from the light source of cell phones is disclosed herein. The colored light filtration apparatus may include a head portion and a body portion. The head portion of the colored light filtration apparatus may change the light colors once applied over the light source. The body portion of the colored light filtration apparatus may be configured to stick to the cell phone or its case and position the head portion over the light source. The colored light filtration apparatus may be easy to apply and remove in order to create easy swapping of colors. The colored light filtration apparatus may be narrow enough in size to prevent disruption with surrounding cameras and cases of the cell phone.

An electronic device includes a panel having a working area and a peripheral area, signal lines, sub-pixels, bio-sensor units, a first switch unit and a second switch unit. The signal lines are disposed on the panel and have a first signal line and a second signal line. The sub-pixels and the bio-sensor units are disposed in the working area. The sub-pixels have a first sub-pixel and a second sub-pixel. The bio-sensor units have a first bio-sensor unit which is electrically connected to the first signal line. The first switch unit and the second switch unit are disposed in the peripheral area and respectively electrically connected to the first sub-pixel and the second sub-pixel through the first signal line and the second signal line. A first time period that the first switch unit is turned on is longer than a second time period that the second switch unit is turned on.

An electronic device includes a panel having a working area and a peripheral area, signal lines, sub-pixels, bio-sensor units, a first switch unit and a second switch unit. The signal lines are disposed on the panel and have a first signal line and a second signal line. The sub-pixels and the bio-sensor units are disposed in the working area. The sub-pixels have a first sub-pixel and a second sub-pixel. The bio-sensor units have a first bio-sensor unit which is electrically connected to the first signal line. The first switch unit and the second switch unit are disposed in the peripheral area and respectively electrically connected to the first sub-pixel and the second sub-pixel through the first signal line and the second signal line. A first time period that the first switch unit is turned on is longer than a second time period that the second switch unit is turned on.

A display device includes imaging unit (101) to generate a captured image, image recognizer (102) to recognize whether or not the captured image contains a reception terminal, light emitter (106) to emit light in accordance with a modulation signal, and transmission controller (103) and light emission controller (105) to control driving of light emitter (106) based on a result recognized by image recognizer (102).

A display device includes: a backlight unit, a camera hole penetrating the backlight unit, a camera in the camera hole, a liquid crystal panel on the backlight unit, the liquid crystal panel including a transparent portion on the camera hole, and at least one light-blocking member in the camera hole, the at least one light-blocking member being configured to reduce one or more of: light leakage from the camera hole and introduction of impurities into the camera hole.

An electronic device according to an embodiment comprises: a front plate; a housing comprising a rear plate facing the front plate; a display exposed through at least one part of the front plate; a camera exposed through a first part of the rear plate; a plurality of first light-emitting diodes exposed through a second part of the rear plate near the first part; a processor operatively connected to the display, camera and plurality of first light-emitting diodes; and memory operatively connected to the processor. The memory, during execution, delays an imaging point by designated time and confirms whether or not a first function of imaging a still image has been configured if the processor receives a first input associated with imaging of the still image by means of the camera, and can store instructions, for guiding with respect to a degree in which the imaging point is reached, by means of the plurality of first light-emitting diodes if the first function has been configured.