最新刊期
期 6 ， 2019
- 摘要：As for the exposure stage Mura in small size and high PPI(Pixel Per Inch) TPC(Tablet Personal Computer) color filter product, it was found that the black matrix(BM) critical dimension(CD) and tape angle in Mura area are different from good area through the characteristic analysis. The reasons were supposed to be the difference of the temperature and gap between Mura area and good area during exposure process and were verified through experiments. After adjusting the exposure temperature and gap, the BM CD and Tape Angle were observed by scanning electron microscope(SEM) and it was found the difference between Mura area and good area were diminished. The stage Mura defect ratio decreases from 7.2% to 1.4% by the adjustment. Furthermore, to diminish the transmittance gap between Mura area and good area in general, the BM thickness is adjusted and the stage Mura defect ratio decreases to 0.6% finally.关键词：color filter;exposure;Mura;CD;tape angle
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发布时间：2020-07-05 - 摘要：
Large size, high resolution (4K/8K), high transmittance and high cost performance are the main development direction of TV products. Advanced Super Dimension Switch (ADS) dual gate 4K GOA product is one of the mainstream TV products at present. Due to its high resolution (3840×2160) and dual gate structure, the pixel size is small and aperture rate is low, in addition to large dark area in the middle of the two sub-pixel of the normal ADS dual gate pixel structure, resulting in low transmittance of panel, w 关键词：ADS;dual gate;electrode;transmittance- 392
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发布时间：2020-07-05 - 摘要：
In order to improve Line Zara defect thoroughly, the failure model of Line Zara was firstly built to analyze its failure mechanism. Analysis shows that Line Zara ratio is proportional to external force and glass bending deformation, and inversely proportional to sealant adhesive strength and distance from sealant to PS. Based on the failure mechanism, some improvements were specifically suggested and confirmed by experiments. The results show that the polishing process, packing density of transportation box 关键词：TFT-LCD;Line Zara;failure mechanism;bending deformation;polishing process;packing density;sealant adhesive strength- 425
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- 60
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发布时间：2020-07-05 - 摘要：
Aiming at some luminance uniformity issues with virtual pixel displays, the forming of luminance centroid of a typical virtual pixel and real red-green-blue pixel were analyzed. The distribution features of pixel luminance centroids between the virtual pixel display and common real red-green-blue pixel display were compared. In the virtual pixel display, red and blue sub-pixels were less than green sub-pixels. The uneven distribution of pixel luminance centroid in the virtual pixel display, which might caus 关键词：virtual pixel;luminance centroid;distribution uniformity- 329
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发布时间：2020-07-05 - 摘要：
For ternary composite via-hole in passivation layer, 20% relevant defection happened in IGZO TFT manufaction. In this paper, the inductively coupled plasma etching mechanism of the oxide TFT passivation was investigated. Combined the reaction gas CF4/O2 with the control variable method, the impact of power, gas composition, gas ratio and pressure on the project was studied. When the passivation is a single component of SiO2 or SiNx, adding oxygen to the reaction gas can promote the etching process. The etch 关键词：IGZO-TFT;ternary composites;passivation;hole etching- 390
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发布时间：2020-07-05 - 摘要：
Rubbing Mura is a common defect in ADS mode TFT-LCD product. This paper mainly studies the fixed position Mura in rubbing process. It is found that Rubbing Mara is caused by the leakage of light from the weak zone of the source data (SD), and the main design factors are ITO material, height difference and via-hole density. ITO material is metal, the longer of the ITO length in rubbing direction is, the greater the damage to the rubbing cloth is, and more obvious the rubbing Mura is. The ITO length design sh 关键词：Rubbing Mura;design influence;ITO;height(source data);via-hole density- 421
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- 84
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发布时间：2020-07-05 - 摘要：
A series of photonic crystal structures was proposed to replace traditional absorbing color film, acting as a reflector color filter to realize Red (R), Green (G), Blue (C), Yellow (Y) and Cyan (C). This solution could widen color gamut from 3 primary colors to 5 primary colors, and could improve color purity by reducing the full width at half maxima (FWHM) comparing these traditional absorbing colors. This paper used Finite Different Time Domain methodology to solve Maxwell Function for designing and optim 关键词：photonic crystals;nano-structures;five primary colors;color filter;colors display- 353
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- 19
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发布时间：2020-07-05
Materials and Devices
- 摘要：
The traditional correlation filter tracking algorithm is easy to track failure in the occlusion, out of view, deformation, background clutter, etc. Aiming at this problem, a fast-scale support correlation filter tracking algorithm was proposed in this paper. Firstly, the support correlation filter was constructed by loop sample, and the tracking problem was considered as a learning problem of the support correlation filter. Then, the discrete Fourier transform and the iterative optimization strategy were us 关键词：target tracking;support correlation filter;log polar transformation;scale adaptation- 307
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发布时间：2020-07-05 - 摘要：
A digital dark field deduction method was designed based on video processor LM98640 in the CDS mode. The real dark field value on that condition was calculated by the statistic of the obtained TDI-CCD dark field gray values. The dark field deduction in the analog circuit was realized by setting the offset registers of LM98640. By the real-time detection to the dark reference gray value and dynamic updating the offset parameters, the dark field values between 0 and 3 on average under different temperatures w 关键词：LM98640;dark field deduction;digital feedback;offset deduction;dynamic range- 364
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发布时间：2020-07-05 - 摘要：
Considering that the map constructed by ROS SLAM can only describe the two-dimensional information of the environment, the three-dimensional point cloud image can only describe the independent three-dimensional information of the object, this paper combines the information of indoor two-dimensional map and object's three-dimensional point cloud image constructed by ROS SLAM's Gmapping algorithm, and proposes a composite coordinate positioning system. Firstly, different indoors are classified and one-dimensi 关键词：ROS SLAM;lidar;3D point cloud image;gmapping;object location- 346
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发布时间：2020-07-05 - 摘要：
Aiming at the problem that artificial texture is easy to be produced in the process of medical image fusion, the guiding filter was applied to medical image fusion to effectively improve the spatial continuity of fusion image and reduce the generation of artificial texture. Firstly, the detail layer information of the image was obtained by using the detail enhancement characteristic of the guide filter. The basic layer image information was obtained by filtering the original image through the guide filter, 关键词：medical image;image fusion;guiding filter;spatial continuity;neighborhood statistical characteristics- 331
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发布时间：2020-07-05 - 摘要：For the mixed traffic of motor vehicles, non-motor vehicles and pedestrians in urban roads, the accurate identification and statistics of vehicle targets become the key issues in video detection of mixed traffic flow. A traffic flow detection algorithm based on deep learning algorithm YOLO (You Only Look Once) was proposed in this paper. YOLO v2 was used to detect moving targets on the road, the region of interest was set up, the vehicle targets passed through the region of interest were counted, and the vehicles were tracked with the kernel correlation filter to avoid repeated counting. The traffic flow detection in mixed traffic video was realized by using this algorithm on ARM. The test results show that the results of vehicle detection, tracking and counting by this method are good and can be applied to the detection of vehicle flow in mixed traffic.关键词：deep learning algorithm YOLO v2;kernelized correlation filter;traffic flow detection;embedded RK3399
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发布时间：2020-07-05 - 摘要：
Aiming at the problem of the color mistransmission of the traditional color transfer algorithm which only carries out the global color transfer and doesn't consider the local features of the image. A gray image colorization algorithm based on Graph-Based image segmentation and region matching is proposed. The target image and the reference image are segmented into a plurality of sub-regions whose luminance and texture features are consistent by using Graph-Based image segmentation. According to one idea pre 关键词：image segmentation;region matching;colorization;color transfer;grayscale image- 344
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发布时间：2020-07-05
Image Processing
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