最新刊期
期 12 ， 2018
- 摘要：
Lithium-ion batteries develop rapidly these years and receive wide attention for their advantages of no memory effect, outstanding cycle retention and high power density. However, widely used polyolefin separators are still unsafe because they will shrink at high temperature. In order to solve this problem, people compose polyolefin separators with heat-resistant inorganic or organic materials to endow separators with resistance to thermal shrinkage as well as shutdown function. Among all these materials, p 关键词：lithium ion battery;separator;poly(p-phenelene terephthalamide);nanofiber;liquid crystalline polymer- 464
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发布时间：2020-08-12 - 摘要：
As a promising reflective display technology, electrophoretic display (EPD) has been widely applied in low power consumption display devices such as e-reader. Despite of the commercial success of monochromic EPD, the future display application needs to be full-color. However, some challenges still obstruct the development of commercial full-color EPD. This paper will first introduce fundamental operation mechanism of EPD, such as particles charging mechanism and particles surface treatment. Then the driving 关键词：electrophoretic display;driving scheme;full color realization- 476
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发布时间：2020-08-12 - 摘要：
ADS TFT-LCD module easily produces Dark light leakage due to the problem of poor light leakage sensitivity. Poor light leakage sensitivity appears with high brightness, large leakage range and yellow color when an external force is applied. In this paper, the effects of glass, LC and PS on the sensitivity to dark light leakage were studied. The result shows that the reduction in glass thickness can improve brightness change, and the decline of △nd can improve yellow color when an external force is applied. 关键词：light leakage sensitivity;liquid crystal scatter;PS support density- 458
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发布时间：2020-08-12 - 摘要：Reliability of conventional integrated gate driver decreased with amorphous InGaZnO thin film transistors (a-IGZO TFTs) employed, which is assumed to result from the threshold voltage shift. Accordingly, An improved integrated gate circuit was proposed, which exhibited larger redundancy for the threshold voltage shift by controlling the Q-point voltage stability of driver TFTs. It prevented the circuit failure due to threshold voltage shift(Vth shift margin enlarged from less than ±-3 V to ±-9 V), made integrated gate driver more stable, and led to longer life of liquid crystal display panels.关键词：amorphous InGaZnO (a-IGZO);thin film transistor (TFT);gate driver in array (GIA)
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发布时间：2020-08-12 - 摘要：
The director distribution of the hybrid aligned nematic liquid crystal in concentric cylinders under a radial electric field is studied. The influence of the flexoelectric effect on director distribution is mainly studied. The nematic liquid crystals are in the thin layer of concentric cylinders, in which the radial anchoring of the inner surface and the axial anchoring of the external surface, or the axial anchoring of the inner surface and the radial anchoring of the external surface constitute two hybrid 关键词：nematic liquid crystal;cylindrical cell;hybrid arrangement;anchoring energy;flexoelectric effect- 309
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发布时间：2020-08-12
Material and Device
- 摘要：
In the process of spectral reflectance reconstruction by traditional methods, it doesn't take into account of the characteristics of highly dimensional and redundant multi-spectral training data, which results in low reconstruction accuracy, poor learning ability and generalization ability of the reconstruction model. In order to solve such problems, the spectral reflectance reconstruction of multi-kernel support vector regression was proposed. Firstly, the product of Cauchy kernel function and polynomial k 关键词：support vector regression;multi-kernel;spectral reflectance reconstruction- 338
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发布时间：2020-08-12 - 摘要：
The S-curve global dynamic dimming algorithm can reduce the power consumption of the LED liquid crystal display, and at the same time improve the static contrast of the displayed image, but the algorithm will cause partial image color distortion and detail loss. To solve this problem, this paper proposes an improved S-curve algorithm combining image detail layer separation and visual saliency theory. Firstly, the original image is converted to the HSV color space for luminance and chrominance separation; th 关键词：global dimming;liquid crystal display;visual saliency;contrast- 360
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- 27
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- 2
发布时间：2020-08-12 - 摘要：
An automatic detection and tracking model of cross target is established in order to realize automatic detection and tracking of cross target in this paper. There is a large amount of computation and poor real-time performance in the traditional target detection algorithm. And the target tracking requires manual calibration of the initial frame of video. To solve the problems above, a cross target detection and tracking algorithm is proposed based on Deformable Part Model (DPM) and Kernelized Correlation Fi 关键词：deformable part model;kernelized correlation filter;histogram of oriented gradient;target detection- 310
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发布时间：2020-08-12 - 摘要：
With the development of transportation service industry in China, automatic identification of railway ticket information has become more important to improve the efficiency of railway service. In order to solve the problem of inconsistency in train ticket direction acquisition in ticket surface information recognition system, a direction detection algorithm is proposed in this paper which is based on Radon transform with feature area clustering. Firstly, the algorithm classifies train ticket images by K-mea 关键词：train ticket image;direction detection;image direction feature area;K-means clustering;Radon transform- 304
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发布时间：2020-08-12 - 摘要：
In order to solve the problem that loss of target caused by complex background, serious clutter interference and similar target confusion in infrared image tracking, this paper proposes an improved low-dimensional texture feature OCS-LBP (Oriented Center Symmetric Local Binary Patterns). First, according to this feature, the gradient direction and amplitude information of each pixel block in the target image can be efficiently acquired, which improves the robustness of the infrared target tracking. Secondly 关键词：machine vision;target tracking;infrared image;OCS-LBP feature;kernel correlation filter- 293
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发布时间：2020-08-12 - 摘要：Due to the non-symmetrical design of the plane electric field and the presence of the flexo-electric effect, the transmittance ratio different between the positive and negative frame, and the visible flicker is obvious. In this paper, the Voltage-Transmittance (V-T) curves of the plane electric field display mode were simulated by the LCD expert software, based on the 396 mm(15.6 in) FHD (1 920×1 080) vertical double-domain structure. At the same time, the residual Direct Current(DC)values and flicker values of different pixel-ITO widths were measured, and the optimal experimental condition was obtained, which was benifit for the pixel design in future.关键词：plane electric field;flicker;residual DC;flexo-electric effect;asymmetric electric field
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发布时间：2020-08-12
Image Processing
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