42.3: Light Leakage Study of the Curved ADS Mode LCDs

You, Jaegeon; Zhao, Weili; Jung, Chulgyu; Qin, Guangkui; Kim, Ki-Man; Yang, Yafeng; Wu, Zhongbao; Wang, Xinxing

doi:10.1002/sdtp.10232

Cited by 9 publications

(5 citation statements)

References 1 publication

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“…We could easily find panel's 4side light leakage at the dark state of the IPS and ADS mode panels at bending condition [1]. Additionally, another issue of curved LCD panels exists: brightness non-uniformity.…”

Section: Introductionmentioning

confidence: 92%

P-125: Study on Pixel Misalignment and Light Leakage of the Curved LCD Panel

You

Zhao

Zhou

et al. 2016

SID Symposium Digest of Technical Papers

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We studied a misalignment (BM shift) issue of curved LCD panel by setting up testable model; upper/bottom glass and surrounding sealing and using the mechanical structure s/w. By changing the curved shape, curvature radius and glass thickness, the horizontal & vertical directional misalignment of pixel (between the upper glass and the bottom glass) was calculated. Finally we can understand the brightness non-uniformity issue of curved LCD displays. Author KeywordsCurved LCD display; curvature radius; glass stress; brightness non uniformity, color mixing issue; pixel misalignment P-125 / J. You SID 2016 DIGEST • 1591

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Section: Introductionmentioning

confidence: 92%

P-125: Study on Pixel Misalignment and Light Leakage of the Curved LCD Panel

You

Zhao

Zhou

et al. 2016

SID Symposium Digest of Technical Papers

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“…Controlling the transmission of light by the birefringence of liquid crystal is the essence of liquid-crystal optics. As is wellknown, the polarization state of the light changes with the viewing angle, which will generate light-leaking to LCD [6,7] . When the gray-scale difference is huge within a frame, a great potential difference is generated between the data line and the pixel electrode in the low gray scale region.…”

Section: The Mechanism Of Light-leakingmentioning

confidence: 99%

P‐11.2: The analysis of light‐leakage under the large viewing angle for LCD

Guo

et al. 2019

Symp Digest of Tech Papers

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In the liquid crystal display, IPS or FFS display modes are widely used for its excellent performance. However, the edge electric field between the Data line and the pixel or com electrode generates a tilt angle to the liquid‐crystal molecules, which will cause of light‐leaking under the large viewing angle. In this paper, we analyze the principle of the phenomenon and its influencing factors through simulation.

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“…For comparison, we also calculated the change in phase retardation of conventional non-alkali LCD glass (EAGLE XG Corning Inc.) as the glass substrate [17], [18]. The parameters of each substrates used in the calculations are listed in Table 1.…”

Section: Change In Phase Retardation Of Polycarbonate Substrates By Tmentioning

confidence: 99%

Evaluation of Phase Retardation of Curved Thin Polycarbonate Substrates for Wide-viewing Angle Flexible Liquid Crystal Displays

Honda

Ishinabe

Shibata

et al. 2017

IEICE Trans. Electron.

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SUMMARYWe investigated the effects of a bending stress on the change in phase retardation of curved polycarbonate substrates and optical characteristics of flexible liquid crystal displays (LCDs). We clarified that the change in phase retardation was extremely small even for the substrates with a small radius of curvature, because bending stresses occurred in the inner and upper surfaces are canceled each other out. We compensated for the phase retardation of polycarbonate substrates by a positive C-plate and successfully suppressed light leakage in both non-curved and curved states. These results indicate the feasibility of high-quality flexible LCDs using polycarbonate substrates even in curved states.

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42.3: Light Leakage Study of the Curved ADS Mode LCDs

Cited by 9 publications

References 1 publication

P-125: Study on Pixel Misalignment and Light Leakage of the Curved LCD Panel

P-125: Study on Pixel Misalignment and Light Leakage of the Curved LCD Panel

P‐11.2: The analysis of light‐leakage under the large viewing angle for LCD

Evaluation of Phase Retardation of Curved Thin Polycarbonate Substrates for Wide-viewing Angle Flexible Liquid Crystal Displays

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