Patently Apple has discovered that the United States Patent & Trademark Office recently published a patent application filed by Cupertino with the title, “Systems and Methods for Preventing Light Guide Plate Scratching Artifacts.”
The document reads: “Electronic displays commonly appear in electronic devices such as televisions, computers, and phones. LCD pixels do not produce their own light. Rather, a backlight unit lights the LCD pixels from behind. The backlight unit may include a light source, a light guide plate, and a diffuser. The light source emits light into the light guide plate, which distributes the light across the diffuser. The diffuser diffuses the light into the LCD. Since the materials that form the light guide plate and the diffuser may stick to one another, a binder material and beads may be placed between the light guide plate and the diffuser to perform an anti-wetting function. During vibration reliability testing or certain real-world use cases, however, the beads could scratch the light guide plate. When the beads scratch the light guide plate, undesirable display screen artifacts appearing as white spots may occur.”
This new method could protect the screen’s backlight from getting scratched.
It would completely remove the artifacts and imperfections found in displays that cause white spots to appear on them.
This is something Apple could implement in the iPhone 6 or the next devices to get one of the best Retina displays on the market.
Source: Patently Apple