18465707. Display Device Including Oxide Semiconductor simplified abstract (LG Display Co., Ltd.)

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Display Device Including Oxide Semiconductor

Organization Name

LG Display Co., Ltd.

Inventor(s)

Ki Tae Kim of Paju-si (KR)

Deuk Ho Yeon of Paju-si (KR)

Sun Wook Ko of Paju-si (KR)

Display Device Including Oxide Semiconductor - A simplified explanation of the abstract

This abstract first appeared for US patent application 18465707 titled 'Display Device Including Oxide Semiconductor

Simplified Explanation

The patent application describes a display device with an oxide semiconductor that prevents mura at low grayscale without reducing on-current, improving image quality.

  • The display device includes a light-emitting device and a pixel driving circuit in each pixel area.
  • The pixel driving circuit supplies a driving current to the light-emitting device based on data and gate signals.
  • The pixel driving circuit consists of a driving thin-film transistor and at least one switching thin-film transistor.
  • The driving thin-film transistor contains a driving semiconductor pattern made of an oxide semiconductor.
  • A conductive pattern with a higher work function than the driving semiconductor pattern is located under it, preventing mura at low grayscale.

Potential Applications

The technology can be applied in various display devices such as OLED screens, TVs, monitors, and smartphones.

Problems Solved

The technology solves the issue of mura at low grayscale levels without compromising on-current, leading to improved image quality in display devices.

Benefits

The benefits of this technology include enhanced image quality, reduced mura, and improved overall performance of display devices.

Potential Commercial Applications

Commercial applications of this technology can be seen in the consumer electronics industry, particularly in the manufacturing of high-quality display devices for various electronic products.

Possible Prior Art

One possible prior art could be the use of different materials or structures in pixel driving circuits to improve image quality in display devices.

Unanswered Questions

How does this technology compare to existing solutions for preventing mura in display devices?

The article does not provide a direct comparison with existing solutions for preventing mura in display devices. It would be beneficial to understand the specific advantages and limitations of this technology compared to other methods currently available in the market.

What are the potential challenges in implementing this technology on a large scale in commercial display devices?

The article does not address the potential challenges in implementing this technology on a large scale in commercial display devices. It would be important to consider factors such as cost, manufacturing processes, and compatibility with existing technologies when scaling up production for commercial applications.


Original Abstract Submitted

Disclosed is a display device including an oxide semiconductor. The display device includes a light-emitting device and a pixel driving circuit located in each pixel area. The pixel driving circuit supplies a driving current corresponding to a data signal to the light-emitting device in response to a gate signal. The pixel driving circuit includes a driving thin-film transistor and at least one switching thin-film transistor. The driving thin-film transistor includes a driving semiconductor pattern made of an oxide semiconductor. A conductive pattern including a metal is located under the driving semiconductor pattern. The conductive pattern is in contact with the driving semiconductor pattern. The conductive pattern has a larger work function than the driving semiconductor pattern. Accordingly, occurrence of mura at low grayscale is prevented without a reduction in on-current. Consequently, the display device exhibits improved image quality.