Samsung display co., ltd. (20240127757). POWER MANAGEMENT DRIVER AND DISPLAY DEVICE HAVING THE SAME simplified abstract

POWER MANAGEMENT DRIVER AND DISPLAY DEVICE HAVING THE SAME

Organization Name

samsung display co., ltd.

Inventor(s)

Dae Sik Lee of YONGIN-SI (KR)

Si Duk Sung of YONGIN-SI (KR)

Sang Hyun Lee of YONGIN-SI (KR)

POWER MANAGEMENT DRIVER AND DISPLAY DEVICE HAVING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240127757 titled 'POWER MANAGEMENT DRIVER AND DISPLAY DEVICE HAVING THE SAME

Simplified Explanation

The patent application describes a power management driver and a display device that can efficiently manage power supply to pixels during sensing and display periods. Here is a simplified explanation of the patent application:

• A first power supply provides different voltages to a pixel's driving power terminal through a power line during sensing and display periods.
• A controller controls the timing of voltage output during the transition period between sensing and display periods based on a sensing control signal.
• A fault detector detects faults in the power line by monitoring the current flow during the sensing period.

1. 1. 1. Potential Applications

• This technology can be applied in various display devices such as smartphones, tablets, and monitors to improve power management efficiency.

1. 1. 1. Problems Solved

• Efficient power management during sensing and display periods.
• Detection of faults in the power line to prevent potential damage to the display device.

1. 1. 1. Benefits

• Improved power efficiency.
• Enhanced reliability and safety of the display device.

1. 1. 1. Potential Commercial Applications

• "Enhancing Power Management in Display Devices: A New Innovation for Improved Efficiency"

1. 1. 1. Possible Prior Art

There may be prior art related to power management systems in display devices, but specific examples are not provided in the patent application.

1. 1. 1. Unanswered Questions
         1. How does the fault detector differentiate between different types of faults in the power line?

The patent application does not provide details on how the fault detector distinguishes between various types of faults in the power line.

1. 1. 1. 1. What is the specific mechanism through which the controller adjusts the timing of voltage output during the transition period?

The patent application does not elaborate on the exact method or technology used by the controller to adjust the timing of voltage output during the transition period.

Original Abstract Submitted

a power management driver and a display device having the power management driver are provided, including a first power supply configured to supply a first voltage to a first driving power terminal of a pixel through a power line during a sensing period, and supply a second voltage to the first driving power terminal of the pixel through the power line during a display period; a controller configured to control timing at which the first voltage is output and timing at which the second voltage is output during a transition period between the display period and the sensing period in response to a sensing control signal; and a fault detector configured to detect a fault in the power line based on a current flowing through an output terminal during the sensing period.