|
Always-on Display
An always-on display (AOD) is a computer-device feed feature mostly found on smartphones that has the device display show limited information while the phone is asleep. It is widely available on Android handsets, and is available on Apple iPhone Pro models since the iPhone 14 Pro. On some Android devices, the feature is sometimes called Ambient Display (Google Pixel) or Active Display, depending on its implementation and behavior. Depending on the phone's design, it may be a replacement or complementary to another feature, such as the notification LED. Overview A device with AOD enabled keeps a limited portion of the screen on during sleep mode. An Always-On Display may display a set of recent push notifications in place of a notification tone or LED signal, as well as information such as the time, date, and battery status of the device; they often may also be configured to also show various types of notifications as they arrive, or screensavers. Various devices have differing b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smartphone
A smartphone is a mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multimedia playback and Streaming media, streaming. Smartphones have built-in cameras, GPS navigation, and support for various communication methods, including voice calls, text messaging, and internet-based messaging apps. Smartphones are distinguished from older-design feature phones by their more advanced hardware capabilities and extensive mobile operating systems, access to the internet, business applications, Mobile payment, mobile payments, and multimedia functionality, including music, video, mobile gaming, gaming, Internet radio, radio, and Mobile television, television. Smartphones typically feature MOSFET, metal–oxide–semiconductor (MOS) integrated circuit (IC) chips, various sensors, and support for multiple wireless communicati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia Lumia
Nokia Lumia, later rebranded to Microsoft Lumia, is a discontinued line of mobile devices that was originally designed and marketed by Nokia and later by Microsoft Mobile. Introduced on October 26, 2011, the line was the result of a long-term partnership between Nokia and Microsoft—as such, Lumia smartphones run on Microsoft software, the Windows Phone operating system; and later the newer Windows 10 Mobile. The Lumia name is derived from the partitive plural form of the Finnish word ''lumi'', meaning "snow". The series debuted with the Nokia Lumia 800 and the Lumia 710 smartphones. In April 2012, the first high-end flagship, Nokia Lumia 900, was released in the US in partnership with AT&T, backed by a major marketing push. Its later flagships included the Nokia Lumia 920, 925, and the first phablet-style model, Nokia Lumia 1520. However, its most successful model was in the lower-end, the budget Nokia Lumia 520, released in April 2013. In July 2013, Nokia introduced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illuminance
In photometry (optics), photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception.International Electrotechnical Commission (IEC): ''International Electrotechnical Vocabulary.'ref. 845-21-060, illuminance/ref> Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. Luminous emittance is also known as luminous exitance. In SI derived units, SI units illuminance is measured in lux (lx), or equivalently in lumen (unit), lumens per square metre (Lumen (unit), lm·meter, m−2). Luminous exitance is measured in lm·m−2 only, not lux. International Electrotechnical Commission (IEC): ''International Electrotechnical Vocabulary.'ref. 845-21-081, luminous exitance/ref> In the CGS system, the unit of illuminance is the phot, which is equal to . The foot-candle is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Display Contrast
In physics and digital imaging, contrast is a quantifiable property used to describe the difference in appearance between elements within a visual field. It is closely linked with the perceived brightness of objects and is typically defined by specific formulas that involve the luminances of the stimuli. For example, contrast can be quantified as ΔL/L near the luminance threshold, known as Weber contrast, or as LH/LL at much higher luminances. Further, contrast can result from differences in chromaticity, which are specified by colorimetric characteristics such as the color difference ΔE in the CIE 1976 UCS (Uniform Colour Space). Understanding contrast is crucial in fields such as imaging and display technologies, where it significantly affects the quality of visual content rendering. The contrast of electronic visual displays is influenced by the type of signal driving mechanism used, which can be either analog or digital. This mechanism directly influences how well th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pebble Smartwatch
A pebble is a clast of rock with a particle size of based on the Udden-Wentworth scale of sedimentology. Pebbles are generally considered larger than granules ( in diameter) and smaller than cobbles ( in diameter). A rock made predominantly of pebbles is termed a conglomerate. Pebble tools are among the earliest known man-made artifacts, dating from the Palaeolithic period of human history. A beach composed chiefly of surface pebbles is commonly termed a shingle beach. This type of beach has armoring characteristics with respect to wave erosion, as well as ecological niches that provide habitat for animals and plants. Inshore banks of shingle (large quantities of pebbles) exist in some locations, such as the entrance to the River Ore, England, where the moving banks of shingle give notable navigational challenges. Pebbles come in various colors and textures and can have streaks, known as veins, of quartz or other minerals. Pebbles are mostly smooth but, dependent on how ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smartwatch
A smartwatch is a portable wearable computer that resembles a wristwatch. Most modern smartwatches are operated via a touchscreen, and rely on mobile apps that run on a connected device (such as a smartphone) in order to provide core functions. Early smartwatches were capable of performing basic functions like calculator watch, calculating, displaying digital time, translating text, and playing games. More recent models often offer features comparable to smartphones, including apps, a mobile operating system, Bluetooth and Wi-Fi connectivity, and the ability to function as portable media players or FM broadcasting, FM radios. Some high-end models have cellular capabilities, allowing users to make and receive phone calls. While internal hardware varies, most smartwatches have a backlit Liquid-crystal display, LCD or OLED electronic visual display and are powered by a rechargeable lithium-ion battery. They may also incorporate GPS navigation device, GPS receivers, digital cameras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specular Reflection
Specular reflection, or regular reflection, is the mirror-like reflection (physics), reflection of waves, such as light, from a surface. The law of reflection states that a reflected ray (optics), ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. The earliest known description of this behavior was recorded by Hero of Alexandria (Anno Domini, AD c. 10–70). Later, Ibn al-Haytham, Alhazen gave a complete statement of the law of reflection. He was first to state that the incident ray, the reflected ray, and the normal to the surface all lie in a same plane perpendicular to reflecting plane. Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions. Law of reflection When light encounters a boundary of a material, it is affected by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One-way Mirror
A one-way mirror, also called two-way mirror (or one-way glass, half-silvered mirror, and semi-transparent mirror), is a reciprocal mirror that appears reflective from one side and transparent from the other though this is an illusion and would break the second law of thermodynamics. The perception of one-way transmission is achieved when one side of the mirror is brightly lit and the other side is dark. This allows viewing from the darkened side but not vice versa. History The first U.S. patent for a one-way mirror appeared in 1903, then named a "transparent mirror". Principle of operation The glass is coated with, or has been encased within, a thin and almost transparent layer of metal (window film usually containing aluminium). The result is a mirrored surface that reflects some light and is penetrated by the rest. Light always passes equally in both directions. However, when one side is brightly lit and the other kept dark, the darker side becomes difficult to see f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transflective Liquid-crystal Display
A transflective liquid-crystal display is a liquid-crystal display (LCD) with an optical layer that diffuse reflection, reflects and transmissibility (electromagnetism), transmits light (''transflective'' is a portmanteau of ''transmissive'' and ''reflective''). Technology Under bright illumination (e.g. when exposed to daylight) the display acts mainly as a reflective display with the display contrast, contrast being constant with illuminance. However, under dim and dark ambient situations the light from a backlight is transmitted through the transflective layer to provide light for the display. The transflective layer is called a transflector. It is typically made from a sheet polymer. It is similar to a one-way mirror but is not Specular reflection, specular. An application is digital LCD watch, wristwatches. In dim ambient light or at night a backlight allows reading of the display in its transmissive mode.: W. Boller, M. Donati, J. Fingerle, Peter J. Wild, P. Wild, ''Illum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screen Burn-in
Screen burn-in, image burn-in, ghost image, or shadow image, is a permanent discoloration of areas on an electronic visual display such as a cathode-ray tube (CRT) in an older computer monitor or television set. It is caused by cumulative non-uniform use of the screen. Newer liquid-crystal displays (LCDs) may suffer from a phenomenon called image persistence instead, which is not permanent. One way to combat screen burn-in was the use of screensavers, which would move an image around to ensure that no one area of the screen remained illuminated for too long. Causes With phosphor-based electronic visual displays (i.e. CRT-type computer monitors, oscilloscope screens, and plasma displays), non-uniform use of specific areas, such as prolonged display of non-moving images (text or graphics), repetitive contents in gaming graphics, or certain broadcasts with tickers and flags, can create a permanent ghost-like image of these objects or otherwise degrade image quality. This is beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samsung Galaxy S7
The Samsung Galaxy S7, Samsung Galaxy S7 Edge and Samsung Galaxy S7 Active were Android (operating system), Android-based smartphones manufactured, released and marketed by Samsung Electronics. The S7 series served as the successor to the Samsung Galaxy S6, Galaxy S6, S6 Edge, S6 Edge+ and S6 Active released in 2015. The S7 and S7 Edge were officially unveiled on 21 February 2016 during a Samsung press conference at Mobile World Congress, with a European and North American release on 11 March 2016. The S7 Active was unveiled on 4 June 2016, and released on AT&T in the United States on 10 June 2016. The Galaxy S7 was an evolution of the prior year's model, with upgraded hardware, design refinements, and the restoration of features removed from the Galaxy S6, such as IP Code, IP68 certification for water and dust resistance, as well as expandable storage with a MicroSD card. Succeeding the S6 and S6 Edge+, respectively, the S7 was produced in a standard model with a display size of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apple Watch
The Apple Watch is a brand of smartwatch products developed and marketed by Apple Inc., Apple. It incorporates activity tracker, fitness tracking, Health (Apple), health-oriented capabilities, and wireless telecommunication, and integrates with watchOS and other Apple products and services. The Apple Watch was released in April 2015, and quickly became the world's best-selling wearable device: 4.2 million were sold in the second quarter of fiscal 2015, and more than 115 million people were estimated to use an Apple Watch as of December 2022. Apple has introduced a new generation of the Apple Watch with improved internal components each Septembereach labeled by Apple as a 'Series', with certain exceptions. Each Series has been initially sold in multiple variants defined by the watch casing's material, color, and size (except for the budget watches Series 1 and SE, available only in aluminum, and the Ultra, available only in 49 mm titanium), and beginning with Series 3, by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
