MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641050466 A) filed by Bapatla Surendra Babu; and Irukumalli Priyanka, Tenali, Andhra Pradesh, on April 21, for 'mechanically-induced refractive annulment via gradient-index equilibrium for foldable displays.'
Inventor(s) include Bapatla Surendra Babu; and Irukumalli Priyanka.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "An optical apparatus autonomously compensates for geometric image distortion at the fold zone of a flexible display device. The apparatus comprises an optically transparent polymeric substrate (120) overlying a flexible display layer (110). When articulated, the curved surface of the substrate acts as a geometric lens exhibiting a specific geometric lens power (140). The bending simultaneously induces a transverse mechanical strain gradient (220) across the substrate thickness. The substrate is synthesized with an engineered stress-optical coefficient (240), such that the mechanical strain photoelastically induces a substantially continuous refractive index gradient (230) exclusively via passive physical deformation. This gradient forms an internal gradient-index (GRIN) lens (150) that substantially opposes and cancels the specific geometric lens power (140), with both effects co-located in the same optical path. Because both scale proportionally with the reciprocal mechanical bending radius (210), the compensation is dynamically self-scaling, maintaining a net-zero optical distortion (160) across any fold angle."
Disclaimer: Curated by HT Syndication.
