Evidence map›Paper›PMID 40047661›Full record

ArticleMicromachines2025

A 64 × 64 GaN Micro LED Monolithic Display Array: Fabrication and Light Crosstalk Analysis.

Yang Xiao, Yuan Meng, Xiaoyu Feng, Longzhen He, Philip Shields, Sean Lee, Yanqin Wang, Zhifang Wang, Pingfan Ning, Hongwei Liu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Micromachines, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Yang XiaoTianjin Key Laboratory of Optoelectronic Detection Technology and System, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.
Yuan MengTianjin Key Laboratory of Optoelectronic Detection Technology and System, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.
Xiaoyu FengTianjin Key Laboratory of Optoelectronic Detection Technology and System, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.
Longzhen HeTianjin Key Laboratory of Optoelectronic Detection Technology and System, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.
Philip ShieldsDepartment of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, UK.ORCID 0000-0003-0517-132X
Sean LeeChip R&D Department, Sanan Optoelectronics Co., Ltd., Tianjin 300392, China.
Yanqin WangChip R&D Department, Sanan Optoelectronics Co., Ltd., Tianjin 300392, China.
Zhifang WangAnalytical & Testing Center, Tiangong University, Tianjin 300387, China.
Pingfan NingTianjin Key Laboratory of Optoelectronic Detection Technology and System, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.
Hongwei LiuTianjin Key Laboratory of Optoelectronic Detection Technology and System, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China.ORCID 0000-0002-3606-0617

Funding

China Scholarship Council 201809345004Tianjin Key Laboratory of Optoelectronic Detection Technology and System 2023LOTDS003Tianjin Municipal Science and Technology Bureau 23YDTPJC00370
6 · The paper itself

Abstract

Monolithic micro LED display arrays show potential for application in small-area display modules, such as augmented reality (AR) displays. Due to the short distance between micro LEDs and the monolithic transparent substrate, a light crosstalk phenomenon exists between adjacent micro LED pixels, decreasing the array's display definition. In this paper, a 64 × 64 GaN micro LED monolithic display array was fabricated on a silicon-based drive circuit. The micro LED size was 20 μm × 20 μm, and the pitch between micro LEDs was 28 μm. To suppress the optical crosstalk between adjacent micro LEDs in the array, we etched a photonic crystal structure using a focused ion beam (FIB) on the micro LED sapphire substrate. Measurements of the micro LED nearfield electroluminescence (EL) and finite element method (FEM) calculations demonstrated that the light expansion was confined in the photonic crystal micro LED with a thinner substrate. The presented work provides references regarding the fabrication of monolithic micro LED arrays and the control of crosstalk in displays.

Indexed as

focused ion beam (FIB)micro light-emitting diode (LED)monolithic display arrayoptical crosstalkphotonic crystal

Identifiers

PMID40047661
PMCPMC11857215

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.