Hey There, I'm Qidi Lin,

based in Shanghai, China.

Microelectronics Master's student.

Interested in display tech and digital life.

First Native iOS

Typst Editor (Typist)

Multiple Local Dimming

MiniLED Algorithm Stack

815K Reads

sspai writing (11 homepage features)

Published (2026)

Synthetic Metals · OLED Light Extraction

Works

Typist iOS Typesetting Editor

The first native iOS Typst editor: delivers syntax highlighting, live PDF preview, and SwiftData document management on iOS/iPadOS. Integrates Typst 0.14 through Rust FFI to bring production-grade typesetting to mobile.

SwiftUIRust FFITypstiOS
Typist

MiniLED Zonal Backlight Control System

An FPGA-based MiniLED zonal backlight system on Gowin. Achieves real-time 1280x800@60Hz video processing with 360-zone luminance control. Implements multiple local dimming algorithms with ambient-light adaptive tuning.

Gowin FPGAVerilog HDLHDMI RXBacklight Algo
MiniLED

EnergyBand Semiconductor Physics Tool

An open-source tool for semiconductor band-structure calculation and visualization. Turns abstract equations into interactive plots for faster parameter validation in learning and prototyping.

JavaScriptCanvasOLED
EnergyBand

C0llecti0n Media Collection Manager

A personal media collection system for books, movies, series, and music. Built with Astro 5 and a zero-database JSON architecture to keep deployment lightweight and data portable.

C0llecti0n

Research

Enhanced Light Extraction of an OLED with low-color-shift and near Lambertian distribution via an External Quasi-Periodic Convex-Sphere Film Academic Paper

Synthetic Metals, 2026 (IF = 4.6)

Investigates OLED light-extraction and color-shift tradeoffs using an external quasi-periodic convex-sphere film. Demonstrates enhanced extraction with low color shift and near-Lambertian distribution.

OLEDLight ExtractionPublished
View Paper →

Ionic Liquid Modified Hole Transport Layer Research Project

Explores TFSI ionic-liquid modified PEDOT:PSS to improve OLED hole injection and device stability. Currently focused on process tuning and repeatability validation.

OLEDResearchOrganic Electronics

About

sspai Author

2022 - 2024

Published long-form writing on tools, product design, and digital life in one of China's leading tech communities. Delivered 13 articles, 11 homepage features, and 815K total reads.

ContentDesignTech Writing

Embedded Software Intern

2022

Built a toaster temperature-control algorithm plus dot-matrix display driver and menu system for vertical electric fryers. Delivered end-to-end implementation on ATmega microcontrollers.

EmbeddedATmegaC

Capabilities

App Engineering

SwiftUI, Rust FFI, Astro, TypeScript (Typist / C0llecti0n)

Display & Hardware

Verilog HDL, Gowin FPGA, ATmega (MiniLED zonal backlight)

Design & Writing

Figma, Blender, Adobe Suite, tech writing (815K total reads)