Samsung display co., ltd. (20240127728). DISPLAY DEVICE INCLUDING A TEST PIXEL simplified abstract

DISPLAY DEVICE INCLUDING A TEST PIXEL

Organization Name

samsung display co., ltd.

Inventor(s)

SEONGJOO Lee of Yongin-si (KR)

JOON-CHUL Goh of Yongin-si (KR)

OHJO Kwon of Yongin-si (KR)

DISPLAY DEVICE INCLUDING A TEST PIXEL - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240127728 titled 'DISPLAY DEVICE INCLUDING A TEST PIXEL

Simplified Explanation

The abstract describes a display device that includes a display panel with a normal pixel in a display region and a test pixel in a peripheral region. A sensing line is coupled to the test pixel, and a sensing circuit is configured to sense a mobility characteristic of the test pixel by measuring a current at a source node of the test pixel through the sensing line. The source node of the test pixel is electrically separated from the sensing line in a data writing period of a frame period, and is electrically coupled to the sensing line in an emission period of the frame period.

• Display device with a test pixel in a peripheral region for sensing mobility characteristics
• Sensing circuit measures current at the source node of the test pixel through a sensing line
• Source node of the test pixel is electrically separated from the sensing line during data writing period
• Source node of the test pixel is electrically coupled to the sensing line during the emission period

Potential Applications

The technology described in this patent application could be applied in the development of high-performance display devices, such as monitors, TVs, and smartphones.

Problems Solved

This technology solves the problem of accurately measuring the mobility characteristic of pixels in a display panel, which is crucial for optimizing display performance.

Benefits

The benefits of this technology include improved display quality, enhanced performance, and potentially longer lifespan of the display panel.

Potential Commercial Applications

One potential commercial application of this technology could be in the manufacturing of advanced display panels for consumer electronics, leading to higher quality and more efficient devices.

Possible Prior Art

One possible prior art for this technology could be the use of sensing circuits in display devices for various purposes, but the specific method described in this patent application may be novel and inventive.

What is the specific method used to electrically separate the source node of the test pixel from the sensing line during the data writing period?

The specific technique or mechanism for achieving this electrical separation is not detailed in the abstract. Further information on this aspect would be beneficial for a deeper understanding of the technology.

How does the sensing circuit differentiate between the data writing period and the emission period to control the electrical coupling of the source node of the test pixel to the sensing line?

The abstract mentions the electrical separation and coupling of the source node of the test pixel at different periods, but the exact method or mechanism by which the sensing circuit accomplishes this is not specified. Understanding this process would provide insights into the operational efficiency of the display device.

Original Abstract Submitted

a display device includes: a display panel including a normal pixel in a display region and a test pixel in a peripheral region, a sensing line coupled to the test pixel, and a sensing circuit configured to sense a mobility characteristic of the test pixel by measuring a current at a source node of the test pixel through the sensing line. the source node of the test pixel is electrically separated from the sensing line in a data writing period of a frame period, and is electrically coupled to the sensing line in an emission period of the frame period.