Apple patents display circuitry that uses negative voltage to save power
Apple has been granted a patent for a display design that controls pixels using a gate driver circuit. The system drives control signals between a positive voltage and a voltage lower than ground to manage the light-emitting diodes in the screen.
In the filing’s own words
A display may include an array of pixels. Each pixel in the array may include a light-emitting diode having an anode terminal coupled to a first power supply terminal configured to receive a positive power supply voltage and having a cathode terminal coupled to a second power supply terminal configured to receive a ground power supply voltage. The display can further include a gate driver circuit configured to output a control signal to a row of display pixels in the array. The control signal can be driven between the positive power supply voltage and a low voltage different than the ground power supply voltage.
What exactly they claim (claim 1)
1. Display circuitry comprising: an array of display pixels, each of which comprises a light-emitting diode having: an anode terminal coupled to a first power supply terminal configured to receive a positive power supply voltage; and a cathode terminal coupled to a second power supply terminal configured to receive a ground power supply voltage; and a gate driver circuit configured to output a control signal to a row of display pixels in the array, wherein the control signal is driven between the positive power supply voltage and an additional voltage less than the ground power supply voltage.
Facts
- Company
- Apple (Apple Inc.)
- Official title
- Display circuitry with complementary low power driving scheme
- Patent number
- US12770573B2
- Application number
- 19057789
- Filed
- Feb 19, 2025
- Granted
- Oct 20, 2026
- Inventors
- 4
- Claims
- 18
Classified under
G09G 3/3266 Physics & computingG09G 2320/0233 Physics & computingG09G 2320/0247 Physics & computingMore from Apple in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.