用于液晶显示器的双电压像素电路系统

By employing a dual-voltage system and level-shifting technology, the problems of image quality and complexity in LCD displays with small pixel pitch were solved, achieving efficient pixel circuit design and reducing the number of transistors and operational complexity.

CN116762122BActive Publication Date: 2026-07-17SNAP INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SNAP INC
Filing Date
2020-12-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional LCD displays suffer from image quality degradation and high complexity in small pixel pitch designs. Digital pixel circuits struggle to maintain sufficient charge when pixel pitch is below 6μm, and the large number of transistors required by traditional digital pixel circuits increases complexity.

Method used

It employs a dual-voltage system and a level-shifting system, including multiple memory storage units and level-shifting circuits, utilizes two transistors to achieve voltage conversion, and combines a self-adjusting transistor bias circuit and an on-chip test array to optimize transistor leakage characteristics.

Benefits of technology

It achieves image quality maintenance with extremely small pixel pitch, while reducing the complexity of pixel circuits and the number of transistors, thus improving operation speed and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

提供了用于液晶显示器的数字像素电路的系统和方法。设计包括双电压像素设计、双晶体管电平移位电路设计、自调节晶体管偏置电路系统以及可选的片上测试阵列,以确定阈值参数和关键晶体管泄漏的特定于管芯的设计中心值。电平移位设计的简便性、小像素间距以及对诸如微型显示器的小型显示器应用的适用性是所获得的各种益处和优点。
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