| US 7,477,246 B2 | ||
| Synchronization of lamp stabilizing pulses with frame rates of PWM LCOS devices | ||
| Paul Winer, Santa Clara, Calif. (US); Kenneth E. Salsman, Pleasanton, Calif. (US); Cynthia Bell, Chandler, Ariz. (US); and Michael O'Connor, Cupertino, Calif. (US) | ||
| Assigned to Intel Corporation, Santa Clara, Calif. (US) | ||
| Filed on Dec. 20, 2004, as Appl. No. 11/17,553. | ||
| Prior Publication US 2006/0132066 A1, Jun. 22, 2006 | ||
| Int. Cl. G09G 5/00 (2006.01) | ||
| U.S. Cl. 345—213 [345/211; 345/204; 345/690; 345/691] | 17 Claims |
| 1. A method, comprising:
detecting an edge of a first signal, the first signal periodically changing between a first voltage and a second voltage,
wherein the first voltage is supplied to a first electrode of a pulse width modulated display panel;
identifying a display cycle of the display panel, the display cycle comprising a bright state and a dark state, wherein the
display panel is turned on during the bright state and is turned off during the dark state; and
generating a synchronization signal to be supplied to a power supply of a lamp, the lamp providing light to the display panel,
wherein the synchronization signal occurs during a pre-determined time of the display cycle and wherein the predetermined
time occurs during the dark state.
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