Light-emitting device

The display device design addresses electrical and power consumption issues by using a transistor with an oxide semiconductor film and light-transmitting conductive films, enhancing aperture ratio and capacitance, and reducing power consumption, thus improving display quality and efficiency.

JP2026113509APending Publication Date: 2026-07-07SEMICON ENERGY LAB CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
SEMICON ENERGY LAB CO LTD
Filing Date
2026-03-16
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing display devices using oxide semiconductors face issues with electrical characteristics, such as threshold voltage fluctuations and increased power consumption due to normally-on characteristics, leading to decreased display quality and contrast, and limitations in improving aperture ratio and capacitance.

Method used

A display device design incorporating a transistor with an oxide semiconductor film, a first and second electrode, a capacitive element with an inorganic insulating film, and a light-emitting element on an organic insulating film, utilizing light-transmitting conductive films to enhance aperture ratio and capacitance while reducing power consumption.

Benefits of technology

The design achieves a display device with improved display quality, reduced power consumption, and increased capacitance, along with a wide viewing angle, while minimizing manufacturing steps.

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Abstract

A display device having a capacitive element that has a high aperture ratio and can increase the capacitance value. To provide. [Solution] The pair of electrodes constituting the capacitive element are made of a light-transmitting conductive film. The electrodes of the device consist of a metal oxide film as one electrode and a light-transmitting conductive film as the other electrode. This configuration is used to provide an organic insulating film on the capacitive element, and generate When forming the pixel electrodes that constitute the optical element, the light emitted is directed towards the capacitive element. Therefore, the capacitive element transmits light and is installed superimposed on the light-emitting element. This allows for an improvement in the aperture ratio and an increase in the volume value.
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