18560714. DISPLAY APPARATUS simplified abstract (SEMICONDUCTOR ENERGY LABORATORY CO., LTD.)

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DISPLAY APPARATUS

Organization Name

SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor(s)

Daisuke Kubota of Atsugi (JP)

Akio Yamashita of Atsugi (JP)

Taisuke Kamada of Niiza (JP)

Daiki Nakamura of Atsugi (JP)

DISPLAY APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18560714 titled 'DISPLAY APPARATUS

The abstract describes a display apparatus with a light detection function that includes a light-receiving device, a first light-emitting device, and an insulating layer.

  • The light-receiving device consists of a first electrode, a light-receiving layer, and a common electrode.
  • The first light-emitting device includes a second electrode, a first EL layer, and the common electrode.
  • The light-receiving layer contains a first functional layer, a second functional layer, and an active layer with aligned end portions.
  • The first EL layer comprises a third functional layer, a fourth functional layer, and a first light-emitting layer.
  • The insulating layer has regions in contact with the side surfaces of the light-receiving layer and the first EL layer.

Potential Applications: - High-accuracy display screens - Light detection systems - Electronic devices with improved functionality

Problems Solved: - Enhanced accuracy in light detection - Improved performance of display devices - Better integration of light-receiving and light-emitting functions

Benefits: - Increased accuracy in detecting light levels - Enhanced display quality - Improved overall performance of electronic devices

Commercial Applications: Title: Advanced Light Detection Display Technology for Enhanced Electronic Devices This technology can be used in: - Smartphones and tablets - TVs and monitors - Automotive displays

Questions about the technology: 1. How does the alignment of functional layers improve the accuracy of light detection in this display apparatus? 2. What are the specific benefits of having an insulating layer in contact with the light-receiving and light-emitting layers?


Original Abstract Submitted

A display apparatus having a light detection function with high accuracy is to be provide. The display apparatus includes a light-receiving device, a first light-emitting device, and an insulating layer. The light-receiving device includes a first electrode, a light-receiving layer, and a common electrode. The first light-emitting device includes a second electrode, a first EL layer, and the common electrode. The light-receiving layer includes a first functional layer, a second functional layer, and an active layer provided therebetween. The first functional layer contains a first substance having a hole-transport property. The second functional layer contains a second substance having an electron-transport property. An end portion of the active layer, an end portion of the first functional layer, and an end portion of the second functional layer are aligned or substantially aligned with one another. The first EL layer includes a third functional layer, a fourth functional layer, and a first light-emitting layer provided therebetween. The third functional layer contains a third substance having a hole-transport property. The fourth functional layer contains a fourth substance having an electron-transport property. The insulating layer includes regions in contact with a side surface of the light-receiving layer and a side surface of the first EL layer.