Protecting content displayed on a mobile device
First Claim
1. A method for protecting content displayed on a mobile device screen, the method comprising:
- receiving sensitive content to be displayed on the mobile device screen, wherein the mobile device screen comprises a film embedded therein and a plurality of pixels, wherein the film has a first refractive index corresponding to a first critical angle at a first electric potential and a second refractive index corresponding to a second critical angle at a second electrical potential, and wherein each of the plurality of pixels have both first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle, the second viewing angle having a smaller viewing angle relative to the first viewing angle;
generating an image of the received sensitive content using the first sub-pixel units and the second sub-pixel units on the mobile device screen;
detecting an image of one or more unauthorized users viewing the mobile device screen;
applying an electrical potential to the film to change optical characteristics of the mobile device screen and obscure the sensitive content from the one or more unauthorized users;
detecting an image of an external camera device used to capture the image of the received content displayed on the mobile device screen;
generating an infrared (IR) signal based on both detecting the image of the external camera device and determining that the detected image of the one or more authorized users only includes the one or more authorized users; and
saturating, using the generated IR signal, an image sensor of the external camera device used to capture the image displayed on the mobile device screen.
1 Assignment
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Accused Products
Abstract
A method, computer program product and system for protecting content includes a mobile device screen including a plurality of pixels, whereby each of the plurality of pixels have first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle. Within each of the plurality of pixels, the first sub-pixel units are adjacent to the second sub-pixel units. A processing unit is coupled to the mobile device screen and determines a portion of the mobile device screen that displays sensitive content. The processing unit obscures the sensitive content displayed on the portion of the mobile device screen by deactivating the first sub-pixel units at the portion of the mobile device screen that displays the sensitive content and activates the second sub-pixel units at the portion of the mobile device screen that displays the sensitive content.
22 Citations
15 Claims
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1. A method for protecting content displayed on a mobile device screen, the method comprising:
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receiving sensitive content to be displayed on the mobile device screen, wherein the mobile device screen comprises a film embedded therein and a plurality of pixels, wherein the film has a first refractive index corresponding to a first critical angle at a first electric potential and a second refractive index corresponding to a second critical angle at a second electrical potential, and wherein each of the plurality of pixels have both first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle, the second viewing angle having a smaller viewing angle relative to the first viewing angle; generating an image of the received sensitive content using the first sub-pixel units and the second sub-pixel units on the mobile device screen; detecting an image of one or more unauthorized users viewing the mobile device screen; applying an electrical potential to the film to change optical characteristics of the mobile device screen and obscure the sensitive content from the one or more unauthorized users; detecting an image of an external camera device used to capture the image of the received content displayed on the mobile device screen; generating an infrared (IR) signal based on both detecting the image of the external camera device and determining that the detected image of the one or more authorized users only includes the one or more authorized users; and saturating, using the generated IR signal, an image sensor of the external camera device used to capture the image displayed on the mobile device screen. - View Dependent Claims (2, 3, 4, 5)
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6. A computer program product for protecting content displayed on a mobile device screen, the computer program product comprising:
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one or more computer-readable storage media and program instructions stored on the one or more computer-readable storage media, the program instructions comprising; program instructions to receive sensitive content to be displayed on the mobile device screen, wherein the mobile device screen comprises a film embedded therein and a plurality of pixels, wherein the film has a first refractive index corresponding to a first critical angle at a first electric potential and a second refractive index corresponding to a second critical angle at a second electrical potential, and wherein each of the plurality of pixels have both first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle, the second viewing angle having a smaller viewing angle relative to the first viewing angle; program instructions to generate an image of the received sensitive content using the first sub-pixel units and the second sub-pixel units on the mobile device screen; program instructions to detect an image of one or more unauthorized users viewing the mobile device screen; program instructions to apply an electrical potential to the film to change optical characteristics of the mobile device screen and obscure the sensitive content from the one or more unauthorized users; program instructions to detect an image of an external camera device used to capture the image of the received content displayed on the mobile device screen; program instructions to generate an infrared (IR) signal based on both detecting the image of the external camera device and determining that the detected image of the one or more authorized users only includes the one or more authorized users; and program instructions to saturate, using the generated IR signal, an image sensor of the external camera device used to capture the image displayed on the mobile device screen. - View Dependent Claims (7, 8, 9, 10)
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11. A computer system for protecting content displayed on a mobile device screen, the computer system comprising:
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one or more computer processors, one or more computer-readable storage media, and program instructions stored on the one or more computer-readable storage media for execution by at least one of the one or more computer processors, the program instructions comprising; program instructions to receive sensitive content to be displayed on the mobile device screen, wherein the mobile device screen comprises a film embedded therein and a plurality of pixels, wherein the film has a first refractive index corresponding to a first critical angle at a first electric potential and a second refractive index corresponding to a second critical angle at a second electrical potential, and wherein each of the plurality of pixels have both first sub-pixel units that include a first viewing angle and second sub-pixel units that include a second viewing angle, the second viewing angle having a smaller viewing angle relative to the first viewing angle; program instructions to generate an image of the received sensitive content using the first sub-pixel units and the second sub-pixel units on the mobile device screen; program instructions to detect an image of one or more unauthorized users viewing the mobile device screen; program instructions to apply an electrical potential to the film to change optical characteristics of the mobile device screen and obscure the sensitive content from the one or more unauthorized users; program instructions to detect an image of an external camera device used to capture the image of the received content displayed on the mobile device screen; program instructions to generate an infrared (IR) signal based on both detecting the image of the external camera device and determining that the detected image of the one or more authorized users only includes the one or more authorized users; and program instructions to saturate, using the generated IR signal, an image sensor of the external camera device used to capture the image displayed on the mobile device screen. - View Dependent Claims (12, 13, 14, 15)
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Specification