What is OGS? The letters stand for ‘one glass solution’. Some of you who have been around for awhile are well aware of what OGS is, but for those of you who are new to modern smart phones, OGS is a technology whereby the layer of air is removed between the touchscreen/digitizer glass and the LCD. They’re sandwiched together to give a brighter look and bring your finger closer to the LCD. It also achieves the additional possible benefit of a thinner phone.
There are currently two different ways to go about OGS. One is ‘sensor on lens’, which is achieved by applying a conductive patterned layer on the back of the front glass. This is for detecting touch. A thin insulating layer is added to the bottom of the first conductive layer, then another conductive layer is added running perpendicular to the first. This ‘module’ is then laminated onto the LCD.
http://www.youtube.com/watch?v=qg3v5Ph0vbI&feature=player_detailpage
The second approach is called ‘on-cell’. Similar to the previous method, a conductive layer is deposited. But this time it’s added onto the top layer of glass in the LCD panel as opposed to the front protective glass. Same as the sensor on lens method, a insulating layer is added, then another conductive layer patterned perpendicular to the previous conductive layer. A polarized layer is applied on top, and then the front protective glass is added.
The ‘on-cell’ method is the most widespread method currently being used.
A year ago at this time, OGS displays were very infrequent in China phones, and even name brand phones often didn’t have them. Fast forward a year later, and nearly all branded MTK6582 and MTK6592 phones are coming with OGS. It’s amazing how fast technology moves, and especially with smart phone technology, it’s been moving at a break-neck pace.
The downside to OGS, is that normally when a phone drops, it’s the front glass that cracks. Now when this happens you’ll likely be obligated to purchase the entire LCD/front glass component as one piece if you want to repair it, which is at least twice as expensive as replacing just the front glass alone. All the more reason to be extra careful with your new MT6582 / MT6592 OGS phone.
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