An electronic device includes a processor configured to generate a slice update map indicating a location of at least one updated slice having a data change in frame data including a plurality of slices; and a display controller configured to extract frame data of the at least one updated slice from a memory based on the slice update map and transfer the frame data to a display driver.

An electronic device includes a processor configured to generate a slice update map indicating a location of at least one updated slice having a data change in frame data including a plurality of slices; and a display controller configured to extract frame data of the at least one updated slice from a memory based on the slice update map and transfer the frame data to a display driver.

A system and method for generating and modifying content for an LED sign comprising a database, a host server coupled to the database, and a processing element coupled to the host server. The database has a plurality of templates stored thereon, with at least one template having a plurality of versions, wherein each version has a different aspect ratio. The host server is configured to host a website on which it displays the plurality of templates. The host server is configured to receive via the website the user's selected template and the dimensions of the LED sign. The host server is configured to send the selected template and dimensions to the processing element. The processing element is configured to determine an optimum version of the selected template based on the dimensions of the LED sign. The processing element is configured to crop and size the optimum version to match the dimensions of the LED sign thereby forming a final version. The processing element is configured to send the final version to the user via the host server.

In the present invention, layout information about each screen layout is separated into a plurality of display elements, and is stored in a plurality of databases for the respective display elements in association with a language selection flag. The plurality of databases include an alignment/progression database and a component position database. The alignment/progression database stores alignment information and progression information. The component position database stores component position information. A controller acquires layout information appropriate to the language selection flag from each database, and controls a display device such that display information is displayed based on the acquired layout information.

Generating a preview representative of a font is provided. A font typeface preview engine generates a preview font file comprising a plurality of font typeface preview elements, wherein each font typeface preview element is associated with a cloud-based font. The font typeface preview engine further generates a mapping file comprising location data mapping each font to a storage location of its associated font typeface preview element in the preview font file. The preview font file and the mapping file are transmitted to a client application executing on a computing device for rendering the plurality of font typeface preview elements as representations of the fonts in a font selection menu. The size of the preview font file can be kept very low. Thus, the computing device is enabled to render the font typeface preview elements with high fidelity, while saving memory allocation for fonts and reducing processor load.