Control device, display device, and control method for control device

The control device for display panels addresses the computational burden of transistor temperature estimation by using pre-measured characteristics, simplifying calculations and enabling efficient temperature correction.

WO2025004258A1PCT designated stage expired Publication Date: 2025-01-02SHARP KK
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Patent Information

Application Number
PCT/JP2023/024107
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-29
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

Existing control devices for display panels require computationally expensive processing to accurately estimate transistor temperature, leading to significant calculation burdens.

Method used

A control device with a storage unit storing current or voltage versus temperature characteristics, a measurement unit to measure current or voltage, and a temperature estimator to estimate temperature, reducing the complexity of calculations by using pre-measured characteristics.

Benefits of technology

The solution simplifies temperature estimation for display panel transistors, reducing computational load while maintaining accuracy, and allows for real-time temperature correction without affecting image display.

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Abstract

Provided is a control device for a display panel comprising a plurality of pixels each including a self-luminous element and a drive transistor for driving the self-luminous element. The control device comprises: a storage unit for storing a current-to-temperature characteristic of at least one of the self-luminous element and the drive transistor; a measurement unit for measuring a current of at least one of the self-luminous element and the drive transistor; and a temperature estimation unit for estimating the temperature of at least one of the self-luminous element and the drive transistor, on the basis of the current-to-temperature characteristic of the at least one of the foregoing and the current of the at least one of the foregoing.
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Citation Information

Patent Citations

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    JP2008181008A

  • Organic light emitting display device and method for driving the same

    US20150042630A1