P‐103: Improvement of Dark State Light Leakage in ADS Mode LCDs

In this paper, a quantitative evaluation method of L0 light leakage sensitivity based on JND energy ratio is established by studying the optical characterization and physical significance of L0 light leakage phenomenon. This method uses continuous quantitative indicators instead of human eye evaluation, which fully improves the accuracy and repeatability, and it can also predict the L0 light leakage level after the test module is assembled into the system set. An optical test system was built to simulate the influence of the system set. The liquid crystal module samples with different glass thickness and different sealant were tested. The test results were consistent with the qualitative judgment results of the human eye after the test module is assembled into tablet PC, and the similar level that the human eye can't be distinguished can be quantitatively distinguished. The repeatability error of the method was only 0.89%.

Section: Analysis Of Test Results Of Different Thickness Glass Liquid Crystal Modulementioning

confidence: 99%

52‐3: Student Paper: A Quantitative Method for L0‐Leakage Sensitivity in TFT‐LCDs Based on JND Energy Ratio

Han-yan

Zhang

Chen

et al. 2021

Section: Theoretical Model and Calculationmentioning

confidence: 99%

“…To solve the problem of the light leakage, it is necessary to prevent the light from irradiating the driving TFT [4][5][6]. Through the analysis of the propagation path of ambient light and light emitted from LED, variable backplane structures with metal layer and BM layer were designed [4][5][6]. In order to optimize the backplane structure with low light leakage, low reflectivity and high transmittance, optical simulation model of light leakage on the driving TFT was built.…”

Section: Theoretical Model and Calculationmentioning

confidence: 99%

P‐11.16: Investigation of Light Leakage on the Thin‐Film‐Transistors Depending on the Micro‐LED Backplane Structures

Chen,

Wang,

Liu

et al. 2024

“…The higher level of people's living standard and cognition, the higher display performances are demanded, such as high resolution, high contrast, high response speed, etc. Some issues which significantly influence the quality of display need to be solved completely, such as image sticking [1,2], mura [3] and light-leaking [4]. To realize low cost and high resolution display effect, the Dual Gate design begins to be used, followed a complicated issue called Shaking Strip, especially for TN (Twist Nematic) products.…”

Section: Introductionmentioning

confidence: 99%

P‐50: Principle and Improvement of Shaking Stripe

Jiang

Hanyu

et al. 2019

Shaking Stripe is a complicated issue in TFT-LCD which has a significant impact on product development because of the lack of design rules. According to this article, the phenomenon is systematically described from two dimensions including spatial frequency and time frequency. Then, it is demonstrated that the different brightness of pixels in a same frame is the immediate reason for this issue, which cannot be homogenized by human eyes. The phenomenon will be more obvious when the difference comes to six gray levels for the gray picture of L127. Furthermore, we investigate three design rules in TN product with the design of Dual Gate and Z-inversion which has a high risk in this issue.