Amoled displays with multiple readout circuits
AssigneeIgnis Innovation Inc.
InventorsJaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
Life of this patent
Estimating the term…
Loading patent…
AssigneeIgnis Innovation Inc.
InventorsJaimal Soni, Ricky Yik Hei Ngan, Gholamreza Chaji, Nino Zahirovic, Joseph Marcel Dionne
Estimating the term…
The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage.
1-25. (canceled)
A system for determining the current effective voltage VOLED of a light-emitting device in a selected pixel in an array of pixels in a display, the selected pixel including a drive transistor for supplying current to said light-emitting device, said light-emitting device emitting light when supplied with the voltage VOLED, the system comprising:
A method of determining the current effective voltage VOLED of a light-emitting device in a selected pixel in an array of pixels in a display, the selected pixel including a drive transistor for supplying current to said light-emitting device, said light-emitting device emitting light when supplied with the voltage VOLED, the method comprising:
Dependencies are inferred from the claim text.