17729769. MICRO LIGHT EMITTING DEVICE AND DISPLAY APPARATUS INCLUDING THE SAME simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

MICRO LIGHT EMITTING DEVICE AND DISPLAY APPARATUS INCLUDING THE SAME

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Junsik Hwang of Hwaseong-si (KR)

Kyungwook Hwang of Seoul (KR)

Seogwoo Hong of Yongin-si (KR)

MICRO LIGHT EMITTING DEVICE AND DISPLAY APPARATUS INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 17729769 titled 'MICRO LIGHT EMITTING DEVICE AND DISPLAY APPARATUS INCLUDING THE SAME

Simplified Explanation

The abstract describes a micro light emitting device that consists of several layers and electrodes. The device includes a first semiconductor layer, a light emitting layer, a second semiconductor layer, an insulating layer, and two electrodes. Additionally, there is an aluminum nitride layer on the lower surface of the first semiconductor layer.

• The device is a micro light emitting device with a layered structure.
• The first semiconductor layer is doped with a specific conductivity type.
• The light emitting layer is positioned on top of the first semiconductor layer.
• The second semiconductor layer is placed on top of the light emitting layer and has an opposite conductivity type to the first layer.
• An insulating layer is present on top of the second semiconductor layer.
• There are two electrodes, one connected to the first semiconductor layer and the other connected to the second semiconductor layer.
• The lower surface of the first semiconductor layer has an aluminum nitride layer with a flat surface.

Potential Applications

• Micro light emitting devices can be used in various display technologies, such as OLED displays.
• These devices can also be utilized in optoelectronic applications, such as sensors and photodetectors.
• The compact size and efficient light emission make them suitable for wearable devices and smart gadgets.

Problems Solved

• The layered structure of the device allows for efficient light emission and control.
• The use of different conductivity types in the semiconductor layers enables precise electrical control.
• The presence of the aluminum nitride layer on the lower surface helps in achieving a flat surface, which is beneficial for device performance.

Benefits

• The micro light emitting device provides high brightness and energy efficiency.
• The layered structure allows for precise control of light emission and electrical properties.
• The compact size and flat surface enhance the device's performance and integration into various applications.

Original Abstract Submitted

A micro light emitting device includes a first semiconductor layer doped with a first conductivity type, a light emitting layer arranged on an upper surface of the first semiconductor layer, a second semiconductor layer arranged on an upper surface of the light emitting layer and doped with a second conductivity type electrically opposite to the first conductivity type, an insulating layer arranged on an upper surface of the second semiconductor layer, a first electrode arranged on an upper surface of the insulating layer and electrically connected to the first semiconductor layer, a second electrode arranged on the upper surface of the insulating layer and electrically connected to the second semiconductor layer, and an aluminum nitride layer arranged on a lower surface of the first semiconductor layer and having a flat surface.