These days you might have come across the term “2.5D glass display” commonly used by various tech company’s while releasing their smart devices. Two-and-a-half dimensional display might sound to be weird at a moment, however this is a real-design factor. 2.5D Curved Display is a term that is used for glasses having a slight curvature at the glass edges, commonly being referred to as contoured glass. Well, this is certainly not an official name, but just used on reference within the tech industry.
Today most of the smart devices in the industry are adorned with 2.5D glass displays wherein these glass sits on the top of the body instead of being affixed over the raised bezels. Today a lot of major tech companies like Google, Apple, Xiaomi and others have implemented this curved-design-glass in their recent handsets which add to the aesthetics of the device and also used for marketing purposes. Let us understand in depth some of the technicalities associated with the 2.5D glasses.
How actually the 2.5D “Curved” glass looks like?
While we refer to it being curved, it does not mean in the very actual sense. Rather the 2.5D curved display glass is made by introducing small curves to the corners of a 2D display. To know it more better, check the latest press slide released by the Xiaomi Mi Note that demonstrates the actual difference.
This effect is made more and less extreme based on how much of the curved edge is required. Larger the curve, more stylish would the surface look giving a sooth feel.
However, having more curves over the edges will result into making of an 3D display which we have been seeing in Samsung’s flagship handset the Galaxy Note Edge 6. Though the major difference between the 2.5D and 3D displays is that while the latter relies more on bendable electronics and substrates, the 2.5D ones don’t.
How are the 2.5D Curved Display Glasses made?
Unlike the actual curved displays wherein the electronic components get folded. 2.5D curved displays are being made just similar to the straight glass panel but adding a bit of additional shaping to it and making the glass of the right size. This means that the 2.5D curved displays still go through the much beneficial hardening and softening techniques just like the ones used in the Corning Gorilla Glass.
The glass pieces desired for the smartphone size are cut from the larger motherly sheet and larger processing layer is thrown over it in order to trim and create smooth edges for the glass. This adds to giving the display better aesthetics and premium looks, of course at a bit more additional cost.
Once the glass is given shape, it is immediately followed by putting it through hardening process. Note that both these processes follow together simultaneously ensuring that the structural integrity of the glass is been maintained rather than risking it by reshaping to the end of the process.
Advantages of having a 2.5D curved display
One of the major advantages of this type of glass panels is rather than giving smartphone users the harsh feel of sharp edges, the 2.5D displays offers a soft and smooth touch. Additionally, it also adds up to the aesthetics of your device.
However, in terms of toughness and strength they are almost similar to the flat panel displays. Not a major technical update , but certainly something you would like to have over your smart devices. Overall, they help you make better display deigns for your smart devices.