最新刊期
期 10 ， 2017
- 摘要：More and more LCD have been applied to the automotive product, the higher pursuit of quality experience, the higher demand for the reliability of the product. For example, there is a growing demand for high luminance of automotive TFT LCD display and high brightness inevitably leads to increase heat. In order to study the effect of heat sink on heat dissipation, the influence of different heat sink design on heat dissipation had been studied, which was based on 5 in automotive LCD. It was found that when the thickness of heat sink, fin spacing and fin height are 2 mm, the quantity of fins is 2, and the design angle of fin sink is 45°, the module temperature was reduced by 5.84%. The heat dissipation area is the final factor of heat dissipation, and it provides a method for increasing the heat dissipation area. It has the vital significance to the heat dissipation of module products.关键词：LED;heat dissipation;heat sink;simulation
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发布时间：2020-08-12 - 摘要：
In order to explore the effects of different environmental factors on the structure of human biofilm, a lipoidal vesicle model constructed by phosphatidylcholine was established. The response of the biological lyotropic liquid crystal system under various external excitations was studied. Firstly, changes of LC phase driven by different excitations, such as temperature, electric field and magnetic field, was investigated, and the critical values or numerical ranges of the damage to the structure were measur 关键词：biomembrane;lyotropic LC;external excitations;phosphatidylcholine- 44
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发布时间：2020-08-12 - 摘要：Based on the theories and monitoring principle of Total Pitch (TP), we discussed the X direction and Y direction variation of TP, which changed by pitch value and TP measurement mark. By contrasting the same lay out but different product with the same product but different lay out, we found that TP does not change with the variation of pitch value. However, distortion affects the variation of TP, which can also be called a simplified monitoring points of distortion in the actual process. The acquisition of the interval of TP from NG to OK provides a new idea of optimizing mask design and reducing the distortion of graphics on the glass.关键词：total pitch;distortion;exposure;lay out
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发布时间：2020-08-12 - 摘要：In the TFT-LCD industry, the impact on the quality of particle is about 95% and directly relates to the effectiveness of enterprises. Therefore, how to effectively control the impact of particle has become an ongoing topic in the industry. This paper analyzes the causes and classification of Cell particle, and studies the direction of particle through the improvement of operation, equipment, raw and auxiliary material, handling method, environment, repair and other aspects. The results show that the combination of technical means and site management have an important effect on the improvement of particle, and make Cell particle reduce 0.84%.关键词：LCD;particle;personnel operations;equipment;raw and auxiliary material;processing method;environment;repair
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发布时间：2020-08-12 - 摘要：In order to meet the requirements of rapid response, and improve the compatibility, a negative liquid crystal material 3PEPYO2 containing ethane bridge bond was designed. The 3PEPYO2 was prepared by combination of Grignard reaction, Wittig reaction and Suzuki reaction, using propyl bromobenzene, bromobenzyl bromide and 2, 3-difluoro-4-ethoxybenzeneboronic acid as raw materials. And the structure was characterized by GC-MS, IR and NMR. The results showed that the compound was immersed in liquid crystal phase at 76.77℃ with Δn value of 0.188 6 and the Δε value of -0.798. The compound may have potential application value in the preparation of fast response and high refractive liquid crystal optics.关键词：ethane bridge;negative liquid crystal;synthesis;high refraction
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发布时间：2020-08-12 - 摘要：Well known PS-VA technology has been extensively used for TV application, but the image sticking issue is still a concern. In order to improve the image sticking performance of PS-VA TV panel, the condition of both UV1 and UV2 process are investigated to find out the relationship between the residual amount of RM and the image sticking performance. It shows that the image sticking performance is related to the RM residual amount. As we know, ion density is a factor of image sticking issue. Based on analysis on the relationship between ion density and RM residual amount, we develop a new technology to reduce the image sticking issue in PS-VA mode. Furthermore, another method is provided in this work to improve the image sticking performance by designing a new LC host mixture which has lower residual amount of RM. The technical data is obtained including ion density data measured by Toyo 6254 and surface profile investigation by SEM and AFM.关键词：PS-VA;image sticking;RM residual amount;ion density;liquid crystal
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发布时间：2020-08-12 - 摘要：The combination of A Plate and C Plate can improve the visual angle of IPS-LCD. This paper studies the improvement in axis-off light leakage of in-plane-switching(IPS) liquid crystal display(LCD) using a laminated film of a λ/4 wave plate and a +C compensation film. According to theoretical investigation and experimental verification, this paper investigates the compensation phenomenon of laminated film in axis-off light leakage of IPS-LCD with different cell gap. An optimized combination of retardation value can be obtained. Especially, the λ/4+C plate with Rth=60 nm and Re=140 nm can improve greatly the visual angle of IPS-LCD which is 4 μm gap.关键词：IPS-LCD;λ/4 plate;+C compensation film;viewing angle;axis-off light leakage
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发布时间：2020-08-12
Material Science
- 摘要：
Well known PS-VA technology has been extensively used for TV application, but the image sticking issue is still a concern. In order to improve the image sticking performance of PS-VA TV panel, the condition of both UV1 and UV2 process are investigated to find out the relationship between the residual amount of RM and the image sticking performance. It shows that the image sticking performance is related to the RM residual amount. As we know, ion density is a factor of image sticking issue. Based on analysis on the relationship between ion density and RM residual amount, we develop a new technology to reduce the image sticking issue in PS-VA mode. Furthermore, another method is provided in this work to improve the image sticking performance by designing a new LC host mixture which has lower residual amount of RM. The technical data is obtained including ion density data measured by Toyo 6254 and surface profile investigation by SEM and AFM.
关键词：PS-VA;image sticking;RM residual amount;ion density;liquid crystal- 32
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发布时间：2020-08-12
- 摘要：
In the past, many studies have focused too much on the selection of numerical simulation softwares and the refinement of the algorithms, which leads to the consequence that the simulation results are difficult to be judged with a uniform standard. And in the practice of the logging process, the resistivity value is obtained by using real acquisition instruments. To reduce the impact of software and algorithms and make the research process not divorce from the physical, this article will elaborate how to com 关键词：electrical logging;numerical simulation;serial touch screen;ANSYS- 22
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发布时间：2020-08-12
Driver and System
- 摘要：
In order to improve the utilization rate of FPGA IO for multi-channel high-speed serial image data transmission in the space application, and to overcome the relative phase uncertainty of the received multi-channel parallel recovery data, we propose a new design of multi-channel high-speed serial image data transmission system based on TLK2711. One new method is using the clock buffer simultaneously to provide low jitter clock for the multi-channel TLK2711 and FPGA. For serial data transmission, the FPGA in 关键词：high speed serial image data;IO utilization;low jitter clock;dynamic adaptive adjustment;phase uncertainty- 52
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发布时间：2020-08-12 - 摘要：
In order to recover the target image accurately and effectively from the turbulence degraded image, a RL turbulence degraded image restoration algorithm based on wavelet transform is proposed. Firstly, the turbulence degraded image is decomposed by wavelet, and sub-images of different frequency bands can be obtained at different decomposition scales. According to the wavelet coefficients of the high frequency sub-segments in different directions, the noise variance of each high frequency sub-segment is esti 关键词：Richardson-Lucy algorithm;Wavelet decomposition;Wavelet denoising;Soft threshold method- 29
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发布时间：2020-08-12 - 摘要：Due to the influence of various meteorological factors such as fog and light in the sea area, the image obtained by the photoelectric equipment has different degree of degradation, which leads to the decrease of the display quality of the image. In order to improve the effectiveness of image enhancement method in marine environment, this paper analyzes four commonly used image enhancement algorithms, including image enhancement algorithm based on histogram equalization, the Fourier algorithm of the original color principle, the image enhancement algorithm based on Retinex, the image enhancement algorithm based on homomorphic filtering, and summarizes the characteristics and the use of these algorithms. The above four kinds of image enhancement algorithms are applied to the image enhancement in the sea area environment. Choosing the appropriate enhancement algorithm can effectively improve the image contrast and overcome the problem of sea fog and illumination unevenness.关键词：sea image;image enhancement;dehazing;uneven illumination
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发布时间：2020-08-12 - 摘要：
According to the principle of polarization effect in the process of atmospheric scene imaging, the polarization imaging equation is established, and a new image restoration method based on the two polarization directions is proposed. A new polarization image restoration equation is derived by combining the atmospheric scattering physical model based on the principle of multiple polarization image restoration. First, the method uses bilateral filtering to estimate the atmospheric veil by the polarization ima 关键词：polarized light;bilateral filtering;atmospheric veil;image evaluation index;halo effect- 35
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发布时间：2020-08-12
Image Processing
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