Laser processing of display components for electronic devices

摘要

Electronic devices may be provided with display structures such as glass and polymer layers in a liquid crystal display. The glass layers may serve as substrates for components such as a color filter layer and thin-film transistor layer. The polymer layers may include films such as a polarizer film and other optical films. During fabrication of a display, the polymer layers and glass layers may be laminated to one another. Portions of the polymer layers may extend past the edges of the glass layers. Laser cutting techniques may be used to trim away excess portions of the polymer layer that do not overlap underlying portions of the glass layers. Laser cutting may involve application of an adjustable infrared laser beam.

主权项

1. A method of trimming a layer of polarizer from a display substrate that has a peripheral edge, comprising:
with a camera, gathering position information on the peripheral edge of the display substrate; with computer-controlled positioning equipment, adjusting a shape of a laser beam based on the position information; and with the computer-controlled positioning equipment, moving the laser beam relative to the display substrate along the peripheral edge to trim away an excess edge portion of the layer of polarizer.