最新刊期
期 2 ， 2019
- 摘要：
The invalidation of via-hole connect is one of the major issues in TFT-LCD industry. To solve out this issue, the influence of different via-hole etch mode (ICP and ECCP) was analyzed; the effects of ECCP mode etching parameters (chamber pressure, bias/source RF power and O2/SF6 gas ratio) on the etching rate and homogeneity were investigated by the four factor method, and the optimum etching parameters of the ECCP over hole improvement were obtained. The results show that the physical bombardment in the et 关键词：ECCP mode;via-hole etching;corrosion improvement- 412
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发布时间：2020-07-05 - 摘要：The key technology of a novel photo spacer (PS) for LCD was investigated in this paper. It could replace traditional half tone or gray tone process by normal full tone mask to obtian two more heights for supporting requirement. In addtion, light could be shaded at the same time, which saved the product cost. This technology could be used in curved or flexible LCD technology. In this technology, the main PS is formed by double color filter stacking, polymer film on array (PFA) and black photo spacer (BPS) layers, and the Sub PS is formed by color filter, PFA and BPS layers. The height difference of main-sub PS can be regulated by changing the size of color filter and the thickness of PFA. By using this method, the adjustment range of main PS height, sub PS height and their height difference can reach 0.6, 0.5, and 0.2~1.3 μm, respectively. A LCD panel with above technology possesses good display performance.关键词：photo spacer;color filter stacking;height regulating
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- 48
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- 1
发布时间：2020-07-05 - 摘要：
For miniaturization, thinner, high PPI(300+) and high aperture ratio of the high-generation line's TFT-LCD panel, improvement of Ass'y margin is the essential technology. Through array and CF key position/size matching optimization and discrete optimization, we try the non-linear offset of array TP, and optimize the process of cell glass turn over, sealant design and sealant coating, the Ass'y margin is improved from 7.5 μm to 5.5 μm of television, monitor, notebook and tablet PC. By solving touch Mura issu 关键词：TFT-LCD panel;Ass'y margin;array;CF;cell;vacuum assembly system(VAS);total pitch non-linear offset;sealant- 376
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- 51
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- 1
发布时间：2020-07-05 - 摘要：
The Taper and DICD(Develop inspection critical dimension) after exposure and development are important parameters in lithography process, which determine the TFT pattern and TFT characteristic. Therefore, it is necessary to identify the process parameters affecting Taper and DICD in mass production, aiming at making Taper and DICD under control, which would improve production yield. In this paper, the effects of photo resist thickness, dose and Z value in exposure, development time were comprehensively stud 关键词：photo resist;taper;DICD;lithography process;Monte Carlo algorithm- 382
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- 3
发布时间：2020-07-05 - 摘要：
In TFT-LCD industry, in the rubbing process, the contact and separation between glass and the stage, the friction process between the roller and glass, as well as the process of the rise of stage Pin, are all easy to produce ESD (Electro-static Discharge). For a GOA (Gate driver on Array) product which was Failed because of ESD in the RUB process, a series of ESD-related verifications were conducted in combination with rubbing process parameters and production environment. The verification found that the li 关键词：rubbing;electro-static discharge;gate driver on array product;rubbing cloth Life;humidity;optical alignment- 396
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发布时间：2020-07-05 - 摘要：
Uniform LC alignment is indispensable in LCD, and photo-alignment process is one technology to form liquid crystal alignment grooves in IPS (In-Plane Switch) LCD by applying polarized UV irradiation. However, UV exposure treatment will simultaneously damage TFT device that produces photo generated electrons and electronic migration on amorphous silicon layer. The TFT leakage current will lead to poor image quality. At low frequency, mixed-charge phenomenon is easily occurred between neighboring scan line du 关键词：photo-alignment;low frequency striped Mura;leakage current- 426
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发布时间：2020-07-05 - 摘要：With the characteristics of low power consumption, readability in the sun, flexible, cheap, reflective display has been widly used in many areas, including e-paper, electronic directional signboard, electronic shelf label, wearable display, and so on, especially the displays used in the outdoor environment urgently demand the properties of low power consumption and readability in the sun. Thus, the reflective displays get rapid development. In order to develop and promote the reflective display better, three types of the mainstream reflective displays wers investigated systematically, including the core technology of reflective display, the principle and the scheme, and the development present situation. The development trend were proposed from the angle of the practitioners of display.关键词：reflective display;liquid crystal display;electrowetting display;electrophoretic display
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- 101
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- 2
发布时间：2020-07-05
Materials and Devices
- 摘要：
The jagged defect of copper data lines caused by corrosion of copper in 4-Mask process was investigated systematically, the steps and mechanism of copper corrosion were found, and the effective measures to improve copper corrosion were established. Firstly, the morphology of copper data lines after each etching process was observed by microscope to determine the process steps of copper corrosion. Then, the composition of corrosion products was confirmed by scanning electron microscopy (SEM) and X-ray electr 关键词：4-Mask;Cu corrosion;line defect- 399
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- 73
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- 2
发布时间：2020-07-05
Materials and Device
- 摘要：
An infrared target tracking algorithm with multi-features was proposed in consideration of low resolution, poor contrast, low signal-to-noise ratio and lack of texture information of infrared target. The background perceptual correlation filter was used to generate a large number of real samples, and the HOG feature and motion feature were extracted for the infrared target. The feature fusion was performed by linear interpolation, and the advantages of the respective feature were well utilized to achieve ac 关键词：infrared target tracking;background-aware;feature fusion;spatial window weighting- 326
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发布时间：2020-07-05 - 摘要：Aiming at the drift caused by occlusion in the field of image tracking, a fusion method based on Mean Shift and histogram ratio background weighted algorithm and Kalman predictive filter was proposed. The Bhattacharyya coefficients were optimized by improving the target model. The difference between the Bhattacharyya coefficients in the normal tracking state and in the occlusion state was increased. The effectiveness of occlusion judgement was improved so the performance of tracking in occlusion was improved. The experiments show that this method can effectively solve the occlusion tracking problem.关键词：occlusion tracking;Mean Shift algorithm;Kalman prediction;background weighted
- 337
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发布时间：2020-07-05 - 摘要：Based on the analysis of the nature of the mapping algorithm of converting rgb to RGBW and several existing algorithms, this paper describes the algorithm research strategy which determines the brightness factor n and then maximizes the use of white sub-pixels, and proposes a new algorithm accordingly. The weight factor of the new algorithm can be adjusted appropriately by subjective experiments in the future to obtain better display effect. The simulation results of MATLAB show that the algorithm has better brightness and the best white sub-pixel utilization, which greatly reduces energy consumption and prolongs the service life of display devices. The research strategy of this algorithm not only contribute to the presentation of excellent new algorithms, but also can be used to optimize the white sub-pixel utilization of several existing algorithms, and promote the popularization of RGBW display technology.关键词：RGBW;mapping algorithm;brightness factor;white sub-pixel utilization;power consumption
- 310
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- 16
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发布时间：2020-07-05 - 摘要：The accuracy of the measured ballistic coordinates in the shooting range are key technical factors which determine the performances of the weapon system. In this paper, we used Helmert methodology in terms of Helmert type for estimating variance component (HTEVC) and integrated multi-station intersection least squares (MSI-LS) and HTEVC to process the joint radar and photoelectric-theodolite measurements. The mathematical model and measuring geometry were introduced. The estimation processes and models of HTEVC were illustrated. The method that integrated posteriori estimation into the MSI model was investigated. Finally, the effectiveness and feasibility of our method were certified by example data. The simulation results indicate the integrated MSI-LS and HTEVC can achieve less than 1 m accuracy in X, H, and Z directions.关键词：joint radar and photoelectric-theodolite;observations ballistic coordinates measurement;Helmert variance component estimation
- 336
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- 11
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发布时间：2020-07-05 - 摘要：
In view of the current misdivision of medical cell image segmentation and the low time efficiency of human subjective factors, an automatic image segmentation method based on Markov Random Field (MRF) based on Chinese restaurant process was proposed. Firstly, the image was denoised. Then, the Markov random field was automatically determined using the unsupervised mode of the Chinese restaurant process. Finally, the conditional iteration mode (ICM) method was used to implement MRF image segmentation and its 关键词：Chinese restaurant process model;Markov random field;cell image;image segmentation- 348
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发布时间：2020-07-05 - 摘要：
In the binocular vision, the virtual cyclopean eye is the reference center for stereo space orientation. There is difference between the cyclopean eye locations of different users, which is not considered in the virtual reality system when presenting the stereo images. The results of shooting simulation experiment showed that the human vision system is sensitive to the relative visual direction offset, and the slight difference between ideal and actual cyclopean eye locations will lead to significant percep 关键词：virtual reality;cyclopean eye;space orientation;space rectification- 417
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- 2
发布时间：2020-07-05 - 摘要：
Aiming at the problem that the traditional fogging algorithm, which is mostly based on prior knowledge and hypothesis can hardly be satisfied in practice, a kind of end-to-end convolutional neural network is proposed, by learning the mapping relationship between foggy images and clear images, image defogging can be realized directly. First, the algorithm is adopted by multi-scale mapping. Through multiscale convolution, it can extract haze features with more detailed information. Secondly, deconvolution is 关键词：convolution neural network;multi-scale mapping;deconvolution;atmospheric scattering Model;activation function- 350
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发布时间：2020-07-05
Image Processing
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