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Stabilization of LCD devices via geometric alteration |
Applied Optics, Vol. 52, Issue 6, pp. 1255-1262 (2013)
http://dx.doi.org/10.1364/AO.52.001255
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Abstract
Glass bending in LCD displays is an inherent problem that has challenged many engineers. As a solution to this problem, we propose a methodology that can tackle the root of the phenomenon in terms of linear elastic beam theory. Using this hypothesis, we devised a background theory and a solution. In this paper, we present a glass panel to which geometrical changes, such as furrow, groove, and curb have been applied. These geometrical changes are applied to the nonactive area of the glass panel. To confirm the validity of our approach, we conducted simulation tests as well as hands-on experiments to observe the thermo-mechanical behavior of the device under various conditions. The simulation results using the Ansys simulator show that the proposed technique can reduce the deformation level of panel bending by 40%. In the experiment using a bare cell with polarizer films attached and with performing the high temperature reliability test, the deformation level of panel bending is reduced by half compared to the reference glass panel without any geometric alteration.
© 2013 Optical Society of America
OCIS Codes
(000.6850) General : Thermodynamics
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(120.4610) Instrumentation, measurement, and metrology : Optical fabrication
(230.3720) Optical devices : Liquid-crystal devices
ToC Category:
Optical Devices
History
Original Manuscript: September 10, 2012
Revised Manuscript: January 23, 2013
Manuscript Accepted: January 25, 2013
Published: February 15, 2013
Citation
Il Jeon, MinSung Yoon, and Je-Hoon Lee, "Stabilization of LCD devices via geometric alteration," Appl. Opt. 52, 1255-1262 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-6-1255
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