A display device comprising a display panel (10) and an electroluminescent light source (20), wherein the display panel (10) includes an intermediate layer and a display surface (12), wherein the electroluminescent light source (20) is configured to project light through the intermediate layer to form an information display on the display surface (12), and wherein the intermediate layer comprises one or more layers selected from crystalized calcium carbonate, porcelain, ceramics, china.

A smart watch and a method for measuring a pulse information are provided in the present disclosure. The smart watch includes a dial, a watchband, a blood vessel information collecting apparatus, and a processing apparatus. The watchband is connected with the dial. The blood vessel information collecting apparatus is disposed in the watchband and is configured to collect a blood vessel information from an inner side of a wrist of a user. The processing apparatus is connected with the blood vessel information collecting apparatus and is configured to receive and process the blood vessel information to obtain the pulse information of the user.

Wearable electronic devices, such as watches, can include a watch body and a band device that can be used together or independently of one another. The band device can provide continual operation of its functions even in the absence of the watch body. The assembly of the watch body and the band device can provide secure engagement, communication, and power sharing. Accordingly, neither the watch body nor the band device need to independently include components that provide every function that will be desired by the user. Instead, functions that are desired on a continual or long-term basis can be provided by the band device, and functions that are desired on an intermittent or short-term basis can be provided by the watch body.

A watch can include a watch band having a first strap segment, a second strap segment, a nest portion secured between the first strap segment and the second strap segment, and an opening extending through the nest portion. The watch can further include a housing releasably mountable to the nest portion, and a sensor disposed within the housing and configured to align with the opening when the housing is mounted to the nest portion.

An electronic device includes a display to display information with a hand and at least one processor, in which the processor is configured to acquire the number of pulsations of a living body during a predetermined period and control the display to express a pulsation period based on the acquired number of pulsations of the living body with the hand.

The present invention relates to a watch type terminal, including a main body, and a sensing unit disposed on one surface of the main body and configured to acquire a biometric signal, wherein the sensing unit includes at least one green light emitting device provided on one surface of the main body and configured to output green light, at least one yellow light emitting device disposed with being spaced apart from the at least one green light emitting device, and configured to output yellow light with a different skin transmittance from that of the green light, a light receiving sensor surrounded by the green light emitting device and the yellow light emitting device, and configured to receive reflected green light and/or yellow light, and a controller configured to generate a biometric signal using light incident on the light receiving sensor.

A system is provided for dispensing a fluid. The system has a housing having a fixation means to a user and an orientation element; the cartridge formed so as to be held in a given orientation by the orientation element with respect to the housing; and control means to activate the cartridge to eject a fluid. In one aspect, the system is a emergency rescue fluid(s) transdermal delivery system which includes a removable, single use emergency rescue fluid(s) dispensing cartridge, a wearable device into which the emergency rescue fluid(s) dispensing cartridge uniquely, matingly and removably inserts. The system includes a communication pathway between the wearable device and at least one other cloud network node, and/or at least one communication pathway between the wearable device and at least one GPS network node. In another aspect, the system dispenses a perfume or other fragrance.

A wearable device includes: a touch screen; an acceleration sensor configured to generate an acceleration signal; an optical sensor using a light source and configured to generate a touch interrupt signal; and a control unit configured to detect a wearing state of the wearable device, the wearing state of the wearable device including a not-wearing state for the wearable device, a wrist wearing state, and a hand gripping state on the basis of the acceleration signal and the touch interrupt signal, and to execute a function corresponding to the wearing state of the wearable device.

Aspects of the disclosure provide a hybrid smartwatch that incorporates digital technology with an analog timepiece in a wristwatch form factor. A digital display layer of a non-emissive material is configured to present notices, data, content and other information. An analog display layer includes one or more hands of the timepiece, and overlies the digital display layer. The hands may be controlled by a processor through micro-stepper motors or other actuators. Physical motion of the hands is simultaneously coupled with arrangement of content or other elements on the display layer, which results in numerous types of hybrid visualizations. This includes temporal presentations using hourly, daily, monthly or other time scales. Shape-shifting of the watch hands between 2D and 1D arrangements can linearly focus on certain information. And various content-aware layouts can highlight, bracket, occlude or otherwise emphasize or deemphasize displayed information.

A watch can include a first watch band portion and a second watch band portion both configured to be coupled with a mechanical watch. The watch can further include a circuit board associated with a controller, the circuit board and controller being removably retained by a clasp. The circuit board and the controller can be electronically and operatively independent from the mechanical watch.