At Cell Phones and More, clients browse phones and accessories from carriers such as Verizon, AT&T, T-Mobile, Boost, Cricket, and Virgin Mobile. Onsite technicians can reignite the healthy glow of a damaged smartphone screen or rekindle connections between computers and the Internet. Staffers can unlock phones, allowing devices to switch carriers without losing functionality or running away from home in search of their old signals. The shop also buys gently used cell phones and dishes out servings of prepaid minutes.
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.
iJunkiez repairs cracked and broken screens on iPhones, iPods, and iPads with a quick turnaround. For customers who have grown bored of their devices' looks, iJunkiez can also convert the shell to a different color, changing white or black phones into lime, royal blue, and bubblegum pink.
Signature service: All things computer and smartphone
Staff Size: 2?10 people
Average Duration of Services: 1?2 hours
Brands Used: Apple, Dell, HP, Microsoft, Acer, Samsung
Pro Tip: Phone repairs are usually less than your insurance deductible.