Last week we posted a report titled "Apple Rumored to be Changing Glass Technologies to allow for Bezel-Free iPhones." The report touched on Apple considering the use of Glass on Glass (G/G) technology. G/G touch panels may allow Apple to develop bezel-free smartphones as in-cell touch panels reportedly are struggling with touch sensitivity on the edges. Today, the U.S. Patent & Trademark Office published a patent application from Apple that reveals that they have a new patent pending on-cell touch architecture on record for smartphones which goes to show that the rumors could be getting it partly right. Apple may be rethinking their use of in-cell displays.
Apple's patent application number 20150169121 generally relates to touch sensor panels that are integrated with displays, and more particularly, to integrated touch sensors/displays in which one layer of touch sensor panel is located between a TFT glass and a color filter glass of the display while another layer of the touch sensor panel is disposed externally to the display, thus forming a partially integrated on-cell touch architecture.
Apple's patent FIG. 7 noted below illustrates an on-cell touch and display configuration related to LCD's.
Apple's patent FIG. 9 note below illustrates an exemplary stack-up of an organic light emitting diode (OLED) display and touch sensor in an on-cell configuration.
Apple credits Touch Hardware Architect and Engineering Manager Weijun Yao along with team mates Wei Yao Manager of Display Engineering, Display Silicon Architect Yingxuan Li, Semiconductor specialist Hopil Bae and Engineering Manager Ahmad Al-Dahle as the inventors of patent application 20150169121 which was originally filed in Q2 2014. For more details on this invention, click here.
Considering that this is a patent application, the timing of such a product to market is unknown at this time.
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