E.i. Dupont De Nemours and Company

Weixiao Zhang

Gang Yu

Matthew Stevenson

Zhining Chen

Jian Wang

An electronic device includes at least one gamma correction unit including a first gamma correction unit. In one embodiment, the first gamma correction unit includes at least one tap that is configured to allow the gamma function for the first gamma correction unit to be changed after the electronic device has been fabricated. In another embodiment, a process for using the electronic device operating the array during a first time period using a first gamma function for the first gamma correction unit. The process also includes changing the first gamma function to a second gamma function. The process further includes operating the array during a second time period using the second gamma function for the first gamma correction unit. A data processing system readable medium has code that includes instructions for carrying out the process.

Electronic device comprising a gamma correction unit, a process for using the electronic device, and a data processing system readable medium

In one embodiment, a circuit for driving an electronic component includes a first conduction path and a second conduction path connected in parallel. Each of the first and second conduction paths includes a field-effect transistor. The first field-effect transistor lies along the first conduction path, and the second field-effect transistor lies along the second conduction path. The circuit can be used in an electronic device that includes a radiation-emitting electronic component or a radiation-responsive electronic component. During a first time period, current flows through the first conduction path and the first electronic component while a second conduction path of a driving unit is off. During a second time period, current flows through the second conduction path and the first electronic component while the first conduction path of the driving unit is off.

Circuits including parallel conduction paths and methods of operating an electronic device including parallel conduction paths

A display for an electronic device may be calibrated and corrected for pixel-to-pixel variations in intensity. Radiation-sensing elements used for the calibration are not incorporated as circuit elements within the pixel circuits and may lie outside the pixels. Waveguides, reflectors, or the like may be used to optically couple the radiation-emitting elements of the pixels to the radiation-sensing elements. The radiation-sensing elements may be part of an apparatus separate from the electronic device or may be embedded within the electronic device. Many different methodologies may be used for correcting intensities to achieve better homogeneity in intensity among the pixels within a display.

Organic electronic device having improved homogeneity

In one embodiment, a circuit for driving an electronic component includes a first signal line and a first switch. The first switch is connected to the first signal line and is coupled to a first terminal of the electronic component. The first switch is configured to allow a state where the first signal line electrically floats. In another embodiment, a circuit for driving an electronic component includes a first switch and a second switch. In yet another embodiment, a method for using any or all of the circuits includes electrically floating a second terminal of the electronic component, a source/drain region of a field-effect transistor, or both. In yet a further embodiment, during a first time period having a first switch at a first setting and a second switch at a second setting. During a second time period, changing the first switch, the second switch, or both to different setting(s).

Circuit for driving an electronic component and method of operating an electronic device having the circuit

In one embodiment, a D/A converter includes a D/A module and a first differential amplifier. The D/A module converts a digital signal to a first analog signal. The first differential amplifier amplifies the first analog signal from the D/A module to a second analog signal. In another embodiment, an electronic device includes D/A converters and sample-and-hold circuits coupled the D/A converters. The D/A converters may or may not include the D/A modules and differential amplifiers. In still another embodiment, an electronic device includes a first electronic component and a first control signal regulator coupled to the first electronic component. A method of using the electronic device includes determining a first maximum setting for the control signal regulator in order to achieve a first radiation intensity from the first electronic component during a first time period and determining a second maximum setting during a second time period.

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Goleta, CA, United States of America

Weixiao Zhang