Simulation of display thermal deformation and error analysis in high precision reverse Hartmann test

Tao Fu, Shanshan Wang*, Nansheng Zhang, Qun Hao, Feng Shi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In reverse Hartmann measurement, the display often undergoes thermal deformation due to self-heating, which can cause drift of pixels on the screen and cause errors in the measurement results. A multilayer LCD model was established based on a linear elastic material model, and the influence of thermal deformation of the display on measurement results was analyzed under different backlighting modes. The results show that when uniformly heated, the PV value increases by 40 nm for each degree of temperature increase in the display, and the main surface errors are tilt and astigmatism under different temperature fields.

Original languageEnglish
Title of host publicationPacific-Rim Laser Damage 2023
Subtitle of host publicationOptical Materials for High-Power Lasers
EditorsJianda Shao, Hitoki Yoneda
PublisherSPIE
ISBN (Electronic)9781510672826
DOIs
Publication statusPublished - 2023
EventPacific-Rim Laser Damage 2023: Optical Materials for High-Power Lasers - Shanghai, China
Duration: 20 Oct 202322 Oct 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12982
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePacific-Rim Laser Damage 2023: Optical Materials for High-Power Lasers
Country/TerritoryChina
CityShanghai
Period20/10/2322/10/23

Keywords

  • error analysis
  • measuring precision
  • reverse Hartmann
  • thermal deformation

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