Pseudo-exponential coding for light emitting devices and related methods

By using pseudo-exponential coding technology, the challenges of high resolution and high dynamic range in LED displays have been solved, achieving more efficient utilization of hardware resources and better display effects, while reducing complexity and cost.

CN121909732APending Publication Date: 2026-04-21CREELED INC
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Patent Information

Application Number
CN202480061652.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-27
Filing Date
2024-09-25
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing LED displays face challenges in terms of high resolution and high dynamic range, especially due to the increased complexity and cost caused by small pixel pitch, and the difficulty of achieving high-frequency PWM signal transmission with existing driving technologies.

Method used

By employing pseudo-exponential encoding technology, deviation from exponential transformation is introduced in the positioning and transformation of data bits to avoid zero value repetition, thereby achieving high dynamic range LED packages and displays and reducing the complexity and size of hardware resources.

Benefits of technology

This improves the dynamic range of LED displays and reduces the complexity and cost of hardware resources, while also reducing parasitic resistance, capacitance, and inductance, thereby enhancing display quality and bandwidth efficiency.

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Abstract

Light emitting devices are disclosed, and more particularly, light emitting devices with pseudo-exponential coding and related methods are disclosed. Pseudo-exponential encoding or pseudo-exponential transformation refers to encoding and decoding techniques that include locating some data bits while introducing at least one data bit offset from exponential transformation. The deviation involves introducing at least one data bit to avoid zero repetition that may exist during decoding. Exemplary light emitting devices include light emitting diode (LED) packages and / or LED displays. Pseudo-exponential coding as described herein provides bit shifting and operations to increase dynamic range while reducing the complexity and size of hardware resources.
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