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Close-up of an LCD, showing a dead green subpixel as a black rectangle. A defective pixel or a dead pixel is a pixel on a liquid crystal display (LCD) that is not functioning properly. The ISO standard ISO 13406-2 distinguishes between three different types of defective pixels, [1] while hardware companies tend to have further distinguishing ...
Three distinct types of defective pixels are described: Type 1 = a hot pixel (always on, being colour white) Type 2 = a dead pixel (always off, meaning black) Type 3 = a stuck pixel (one or more sub-pixels (red, blue or green) are always on or always off) The table below shows the maximum number of allowed defects (per type) per 1 million pixels.
Dead pixel policies are often hotly debated between manufacturers and customers. To regulate the acceptability of defects and to protect the end user, ISO released the ISO 13406-2 standard, which was made obsolete in 2008 with the release of ISO 9241 , specifically ISO-9241-302, 303, 305, 307:2008 pixel defects.
The iPhone 3GS, stylized as iPhone 3G🅂, [a] is a smartphone that was developed and marketed by Apple Inc. It is the third generation of the iPhone and the successor to the iPhone 3G . It was unveiled on June 8, 2009 [ 6 ] at the WWDC 2009 , which took place at the Moscone Center in San Francisco.
After surging roughly 50% to a record high in 2023, a rare rating downgrade from Wall Street helped push Apple stock down 3.65% on Tuesday, shaving over $100 billion from the tech giant’s market ...
The XS, which is visually near-identical to the iPhone X, has a better system-on-a-chip: the A12 Bionic chip built with a 7 nm process. [20] It has a 5.85 inch (149 mm) OLED display (marketed as 5.8 inch) with a resolution of 2436 × 1125 pixels (2.7 megapixels) at 458 ppi, dual 12-megapixel rear cameras, and one 7-megapixel front-facing camera.
The Verge considered iPhone SE to be much-improved and well-designed with great battery life, and its screen size the only hindrance to multitasking and certain apps. Giving the device 8.7 out of 10, The Verge said the iPhone SE is "today's tech in yesterday's phone body" and warned not to overly praise something just for doing its job. [50]
The iPhone 3G sported a 3.5 in (89 mm) capacitive touchscreen with a 480×320 resolution at 163 ppi. The scratch-resistant glass sits on top of the display. Just like the original iPhone, the touchscreen was designed for a bare finger, or multiple fingers for multi-touch sensing. The device featured the same sensors as its predecessor.