what is retina display
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Retina Display Retina Display is a marketing term developed by Apple to refer to devices and monitors that have a resolution and pixel density so high – roughly 300 or more pixels per inch – that a person is unable to discern the individual pixels at a normal viewing distance.
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Apple Retina display Apple Retina display. The Apple Retina display is a backlit LCD (liquid crystal display) that provides resolution levels of 220 to 326 pixels per inch. Retina displays are included in recent models of Apple's mobile devices and the MacBook Pro notebook computer. The Retina display includes an ambient light sensor that allows for automatic screen brightness adjustment for optimum viewing in environments ranging from darkness to sunlight.
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Retinal Scanner A retinal scanner is a biometric security device that scans the unique imprint of a person's retina before unlocking a door. Only the correct retina will be accepted by the retinal scanner; if the incorrect retina is scanned, the door will not open and it is possible that an alarm will be triggered.
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- The term DVI means Digital Visual Interface. DVI is the more modern version of monitor inputs, used for LCD monitors and digital projectors. The older version, for CRT monitors is VGA.
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Visual Problems Blurred Vision Retinopathy: Any disease of the retina, the light-sensitive membrane at the back of the eye. The type of retinopathy is often specified, such as arteriosclerotic retinopathy, diabetic retinopathy, or hypertensive retinopathy.etinopathy: Any disease of the retina, the light-sensitive membrane at the back of the eye. The type of retinopathy is often specified, such as arteriosclerotic retinopathy, diabetic retinopathy, or hypertensive retinopathy.
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"What is ""LCD""?" What is LCD? A liquid crystal display, typically referred to as an LCD, is a flat display technology that uses electrodes and polarizing filters to selectively enable or disable pixels of light to pass from a backlight or reflective backing to the eyes of the viewer.
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Retinal Imaging Offers a Better View and Early Detection Retinal Imaging Offers a Better View and Early Detection. Digital retinal imaging uses high-resolution imaging systems to take pictures of the inside of your eye. This helps VSP doctors assess the health of your retina and helps them to detect and manage such eye and health conditions as glaucoma, diabetes, and macular degeneration. Finding retinal disorders as early as possible is critical to potentially preventing serious disease progression and even vision loss. In addition to helping detect diseases early, retinal images provide a permanent and historical record of changes in your eye.
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LED display A liquid-crystal display (LCD) is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals.
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Glossary of computer hardware terms A computer monitor or a computer display is an electronic visual display for computers. A monitor usually comprises the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) or a flat panel LED display, while older monitors used a cathode ray tubes (CRT).
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Retinopathy Retinopathy is the general name of a condition of the eyes in which the blood vessels that supply oxygen to the retina of the eyes are damaged. The retina is a light-sensitive membrane that lines the back of the eyes, and a healthy retina is vital to normal vision.
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What is Retina Display? June 29, 2014. The term Retina display refers to a type of LCD developed by Apple. According to Apple, the name Retina was given to these displays because they have a high enough pixel density that no pixelation is visible to the human eye at a standard viewing distance. The Retina display is available on multiple Apple products, including smartphones, tablets, and laptops.
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Retina It is located near the optic nerve. The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition. The retina processes light through a layer of photoreceptor cells.
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Retinal Hemorrhage Retinal hemorrhage is the abnormal bleeding of the blood vessels in the retina, the membrane in the back of the eye. The retina is the part of the eye that converts light into nerve signals that are processed by the brain into visual images. The retina is the inside surface of the back of the eye, consisting of millions of densely arranged, light-sensitive cells called rods and cones.
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Retina Retina. The (the innermost layer of the eye) performs the function that gives the eye its purpose: it absorbs light and transmits sensory information to the brain for processing. The retina is the delicate, transparent neural tissue that lines the posterior two-thirds of the eyeball.lthough it is only 0.5 mm thick, the retina has several layers, including a pigmented layer, neural layer (rods and cones), and nerve fiber layer. The neural layer is made up of photoreceptors and nerve cells that transmit visual information.
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- The VX2270Smh-LED is a frameless monitor with glossy bezels surrounding the viewable area. Full HD 1080p Resolution. The monitor's 1920 x 1080 resolution is capable of displaying a native full HD 1080p image, with p standing for progressive, which is the better of the two HD types.ore Info from Manufacturer. ViewSonic's 22 Widescreen Full HD 1080p LED Monitor is a frameless LED-backlit display with 1920 x 1080 progressive HD resolution, progressive being the better of the two HD types.
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Backlight A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light themselves (unlike for example Cathode ray tube (CRT) displays), they need illumination (ambient light or a special light source) to produce a visible image.Backlights illuminate the LCD from the side or back of the display panel, unlike frontlights, which are placed in front of the LCD.acklights are used in small displays to increase readability in low light conditions such as in wristwatches, and are used in computer displays and LCD televisions to produce light in a manner similar to a CRT display.
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Detached Retina (Retinal Detachment) What Is a Detached Retina (Retinal Detachment)? A detached retina occurs when the retina is pulled away from its normal position in the back of the eye. The retina sends visual images to the brain through the optic nerve. When detachment occurs, vision is blurred. A detached retina is a serious problem that can cause blindness unless it is treated.
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- Retinal Detachment. The retina is a structure at the back of the eye which is important for sight. When two layers of the retina become separated, it is known as retinal detachment (RD). It is a very serious eye condition and can cause severe visual impairment if it is not treated promptly.
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ARCHIVED: What is refresh rate? Refresh rate is an important attribute of cathode ray tube (CRT) monitors and any sort of cathode ray display, including TVs, because of the way the CRT renders the image. The glass in the screen is coated with phosphors.
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What Is Retinitis Pigmentosa? Retinitis pigmentosa (RP) refers to a group of inherited diseases causing retinal degeneration. The cell-rich retina lines the back inside wall of the eye. It is responsible for capturing images from the visual field.
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- On this page: Retinitis pigmentosa symptoms • Causes of retinitis pigmentosa • Usher syndrome • Treatments for RP • Adaptive strategies. Retinitis pigmentosa (RP) is a rare, inherited disease in which the light-sensitive retina of the eye slowly and progressively degenerates. Eventually, blindness results.
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- For true LED displays, see LED display. An LED-backlit LCD is a flat panel display which uses LED backlighting instead of the cold cathode fluorescent (CCFL) backlighting used by most other LCDs. LED-backlit LCD TVs use the same TFT LCD (Thin-film-transistor liquid-crystal display) technologies as CCFL-backlit LCD TVs.
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What does LCD mean? A Liquid Crystal Display (LCD) is a thin, flat electronic visual display that contains liquid crystals, whose optical properties change in the presence of an electric field. LCDs must have an external light source to be visible. LCDs are commonly used in calculators, watches, digital cameras, and notebook computers.
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Retinal Hemorrhage The retina is the part of the eye that converts light into nerve signals that are processed by the brain into visual images. The retina is the inside surface of the back of the eye, consisting of millions of densely arranged, light-sensitive cells called rods and cones.Blood flow to the retina is maintained by the retinal vein and artery, and a dense network of small blood vessels (capillaries) supplies the area with circulation.These blood vessels can become damaged by injury and disease and may bleed (hemorrhage) and cause temporary or permanent loss of visual accuracy.he retina is the part of the eye that converts light into nerve signals that are processed by the brain into visual images. The retina is the inside surface of the back of the eye, consisting of millions of densely arranged, light-sensitive cells called rods and cones.
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- Apple uses the term “Retina display” because, as Steve Jobs indicated when the first iPhone with Retina display was unveiled, it has such a high number of pixels packed into such a small space that it is impossible for the average person to discern individual pixels at a normal viewing distance.
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Retinal detachment Retinal detachment. Retinal detachment is a separation of the light-sensitive membrane (retina) in the back of the eye from its supporting layers. Causes. The retina is the clear tissue in the back of the eye. It helps you see the images that are focused on it by the cornea and the lens. The most common type of retinal detachment is often due to a tear or hole in the retina. Eye fluid may leak through this opening. This causes the retina to separate from the underlying tissues, much like a bubble under wallpaper. This is most often caused by a condition called posterior vitreous detachment.