Certified technicians fix and repair screens of mobile devices of all kinds
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- iPhone 5 Screen Repair
- iPhone 6 Screen Repair
- iPhone 6 Plus Screen Repair
- iPhone 6s Glass Repair
- iPhone 6s LCD Repair
- iPhone 6s Plus Glass Repair
- iPhone 6s Plus LCD Repair
Liquid Crystals and LCDs: How Cell Phones Resemble Carrots
A smartphone’s tiny screen relies on the strange properties of liquid crystals. Check out Groupon’s study of LCDs to learn how they create the vivid pictures in your pocket.
The term liquid crystal seems a contradiction, but a liquid crystal is actually neither a liquid nor a solid—it’s both, stuck in a sort of chemical limbo with its molecules somewhere between the liquid and solid phases. When an electrical current passes through a liquid crystal, its molecular orientation changes, and so does the direction of light that passes through it. By sandwiching these crystals between polarized glass and manipulating the current passing through them, your phone is able to control the light they channel, resulting in the high-contrast images that appear on screen. Although our brains only see each pixel as a single dot, each consists of red, blue, and green subpixels that, when lit at various intensities, can emit more than 16 million colors.
Despite their advanced applications, liquid crystals are not a recent discovery. They were first identified in the late 19th century by a scientist studying cholesterol extracted from carrots—a natural source of liquid crystals, as are human beings and most other living things, which tend to have them in their cell membranes. Liquid crystals and LCDs were the subject of research and patent applications throughout the early 20th century—including one filed by Marconi’s Wireless Telegraph Company in 1936—and finally hit consumer electronics in the early 1970s, when they were introduced in wristwatches.
So your phone is broken. Now what? Read our guide to smartphone repair to learn the next steps.
About Precision Point
When your smartphone goes down, so too does your connection to the outside world. Fortunately for Houston residents, the skilled technicians at Precision Point devote their workdays to restoring busted phones to charged-up working order. They're well-versed at screen repairs, battery replacements, general electronics repairs, and other common maintenance requests, and even bear the know-how needed to unlock phones and tinker with internal software and also help in buying and selling phones.