最新刊期
期 7 ， 2019
- 摘要：
The effects of main and side chain modification of donor-acceptor conjugated polymers based on isoindigo and its derivatives on electrical properties were studied. The structure, morphology and electrical properties of the polymers were characterized by glancing angle X-ray diffraction, atomic force microscopy and Keithley 4200-SCS. The experimental results show that the addition of alkyl side chains can increase the steric hindrance and change the molecular stacking from the ordered edge-on structure to di 关键词：isoindigo and its derivatives;modification of main and side chains;polymer structure;electrical properties- 351
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发布时间：2020-07-05 - 摘要：Bubble in LCD panel is a defect with low frequency but great influence. In this paper, a kind of Bubble defect in TN LCD panel was explored. The reason is that the OC (Over Coat) material in the CF (Color Filter) is stored at high temperature for a long time, which results in a large amount of gas precipitation in the OC. It is released into the panel through the cracks of ITO (Indium Tin Oxide) and finally forms bubbles. The generation principle of the bubbles and the improvement methods of bubbles were researched in this paper. It is proved that the gas generation can be reduced by optimizing process parameters and replacing OC materials, and the ITO cracks can be reduced by changing the temperature of ITO film formation, so as to solve the problem from the source. That guarantees product quality and improves customer satisfaction.关键词：color filter;bubble defect;over coat;indium tin oxide
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发布时间：2020-07-05 - 摘要：With the development of TFT-LCD industry, how to reduce the loss in product manufacturing process to improve the company's operating profit has gradually become the subject of continuous exploration by major enterprises in the industry. This paper mainly probes liquid crystal loss (the material with the largest loss amount in panel section). Through the application of big data technology, 11 factors affecting liquid crystal loss are analyzed, and 4 of the most critical ones are selected by comparison. Then, the reduction direction of liquid crystal loss is studied from recipe optimization, bottle bottom residual improvement, filling amount reduction of job change, auto degas frequency reduction, measurement frequency reduction and other aspects. The results show that by controlling and improving the main factors affecting liquid crystal loss, the loss rate is reduced by 4.86% and the annual profit is 16.88 million yuan per year.关键词：LCD;loss;liquid crystal;big data technology;bottle bottom residual;filling amount reduction;auto degas;measurement frequency
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发布时间：2020-07-05 - 摘要：
The effects of different a-Si remain thickness of channel on the electrical properties of TFT were studied under dark and photo test environments. The thickness of a-Si remain in channel was changed by adjusting the etching time. Futhermore, the stable region and the critical point of radical change of electrical were found through this experiment. The experimental results show that the electrical characteristics of TFT devices are relatively stable and fluctuate slightly when the thickness of a-Si remain i 关键词：a-Si remain;electrical characteristics;Ion;Ioff- 437
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发布时间：2020-07-05 - 摘要：
In order to improve the intelligent operation of the equipment and save humannel, the automatic repair of microscopic defects of color filter was studied. By using the method of minimum cycle comparison, the repair equipment can automatically find defects, confirm the exact position of defects and choose the repair operations such as tape, laser or ink, so as to replace the human role. According to the statistics data, the success rate of automatic repair is 99.8%, closing to 99.9% by manual repair, which m 关键词：color filter;microscopic defect;repair;automatic- 329
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发布时间：2020-07-05 - 摘要：
Autostereoscopic three-dimensional (3D) displays realized by traditional parallax barriers exists the limitations of serious crosstalk, obvious Moire fringe, narrow visual area and the lopsided loss of light in the horizontal and vertical directions. In this paper, the effects of the parameters of the parallax barrier on the Moire fringe, crosstalk, and visible area are studied, including the tilt angle of the slit grating, the slit width, and the slit offset distance. The design detail of the proposed stag 关键词：autostereoscopic display;vertical staggered barrier;slanted staggered barrier;moire fringe;crosstalk- 358
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发布时间：2020-07-05 - 摘要：
In order to decrease incidence ratio of L0 light leakage in borderless module, Seven impact factors(Pre-bake temp.&time, PI thickness, TFT & CF nip, TFT & CT rubbing Cloth)are filtrated by studying LC, PI, ODF, PI coating and rubbing processes. Also, warships of 1.8~2.1μm and 6.4~8.0 μm are chosen as noise factor's low & high level based on quadratic fit between L0 leakage level and warship. A L8 Taguchi experiment is designed and run by Jump 14. The result shows that a max S/N of~2.63 can b 关键词：L0 light leakage;ADS;borderless module;Taguchi method- 369
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发布时间：2020-07-05 - 摘要：
In the process of producing touch products, the appearance quality of the product was seriously affected by the poor bubble line. In this paper, the formation mechanism of bubble line was researched. When the polarizer was attached, the residual bubbles existed between the organic film segment of the sensor protective layer and the polarizer, which thereby caused such defect. The influence factors of the bubble line were studied from the point of design and the process. It is found that the boundary design 关键词：bubble line;capacitive touch screen;influence factor;design and process conditions- 356
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发布时间：2020-07-05 - 摘要：
Nematic phase liquid crystal mixture with chiral dopant was synthesized to replace cholesteric liquid crystal as the core of microcapsule. Firstly, series of liquid crystal mixture color-changed at room temperature were prepared by adjusting the different ratios of nematic liquid crystal and chiral additive. Afterwards, three extra additives were explored respectively as the addition of the polychromatic liquid crystal mixture to determine the best formulation of liquid crystal mixture displaying different 关键词：nematic liquid crystal;chiral additives;dope;microcapsule;interfacial polymerization- 353
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发布时间：2020-07-05
Materials and Devices
- 摘要：
In order to improve the image dehazing effect, the improved dark channel algorithm was proposed. Firstly, the atmospheric dissipation function was calculated with mixed dark channel, the foggy image was divided into close and distant area, dark channel value of the close area was smaller, the dark channel value of the distant area was larger, and the attenuation of gray value was varied degree at different intervals, and the sectional type mapping was calculated. Secondly, the transmission graph was added w 关键词：atmospheric dissipation function;transmission graph;weighting;bootstrap filtering;image dehazing- 350
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发布时间：2020-07-05 - 摘要：
For the low recall rate of Edge Boxes algorithm, a region proposals algorithm based on color distance and Edge Boxes is proposed in this paper, combining with the object saliency detection. Firstly, the edge features are computed using Structured Edge detector, and the weight values of every edge group are obtained through edge point aggregation and edge groups affinities. Secondly, several image patches are sampled randomly in the image, which is to be detected, this image patches are denoted C image patch 关键词：salient object;color distance;object detection;region proposals- 332
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发布时间：2020-07-05 - 摘要：Aiming at the problem that multi-heterogeneous network overlap coverage and multi-user multi-service coexistence environment, users maximizing the transmission rate may cause the network load to be unbalanced, a service access control method based on non-dominated sorting genetic algorithm is proposed. The strategy firstly takes the maximum transmission rate and the load balance of the system as the objective function, and the bandwidth resource limitation as the constraint condition, and constructs the two-objective optimization model with maximum transmission rate and most balanced network load. Then the service access control problem is solved based on the multi-objective optimization Non-dominated Sorting Genetic Algorithm Ⅱ (NSGA-Ⅱ). The simulation results show that the proposed algorithm takes into account the user's transmission rate requirements and load balancing between networks, and achieves better results.关键词：heterogeneous wireless network;load balancing;transmission rate;non-dominated sorting;multi-objective optimization
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发布时间：2020-07-05 - 摘要：
The traditional wolf pack algorithm (WPA) is slow and easy to fall into local optima in the image segmentation. Aiming to this problem, the Otsu image threshold segmentation algorithm based on fractional order wolf pack algorithm is proposed. Using the advantage of fractional order which has memory for past states, the position updating of wolves is controlled by fractional order. Using the adaptive fractional order, the position of wolves is used to adjust the fractional order adaptively to improve the con 关键词：Otsu algorithm;wolf pack algorithm;fractional differential- 323
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发布时间：2020-07-05
Image Processing
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