Beijing Boe Optoelectronics Technology Co., Ltd.

Boe Technology Group Co., Ltd.

Beijing Boe Technology Development Co., Ltd.

Boe Technology Groupco., Ltd.

Boe (hebei) Mobile Display Technology Co., Ltd.

Beijing Boe Display Technology Co., Ltd.

China National Petroleum Corporation

Cnpc Engineering Technology R&d Company Limited

Hitachi Energy Ltd

Boe Mled Technology Co., Ltd.

Beijing Huamei Inc. Cnpc

Lili Chen

Hao Zhang

Jinghua Miao

Wenyu Li

Chenru Wang

Jiankang Sun

Yukun Sun

Xuefeng Wang

Ruijun Dong

Minglei Chu

Qingwen Fan

Bin Zhao

Xi Li

Yali Liu

Guixin Yan

Jianwen Suo

Jinbao Peng

Zhanshan Ma

Ziqiang Guo

Yachong Xue

Zhifu Li

Lixin Wang

Yaoyu Lv

Huidong He

Wenhong Tian

Shuo Zhang

Hongzhen Xue

Yuanjie Lu

Jian Qiao Sun

Yakun Wang

Xuebing Zhang

Xue Dong

Fuqiang Ma

Ke Zhao Li

Gang Li

Zehua Dong

Dong Chen

Haiwei Sun

Chenxi Zhao

Yulong Wu

Ruifeng Qin

Xiaolei Liu

Peng Han

Zhiyu Sun

Yu Lei

Xinjian Liu

Wei Sun

Feng Zi

Feng Pan

Xiangjun Peng

Ke Li

Jiyang Shao

Jiarong Bai

Menglei Zhang

Bingxin Liu

Binhua Sun

Yuhong Liu

Haoran Jing

Na Han

Guangquan Wang

Zhihua Ji

Yanqiu Zhao

Chao Zheng

Zheng Ge

Zhen Tang

Ming Jin Chen

Lin Lin

Xiurong Wang

Yadong Ding

Ming Xu

Feng Qu

Lu Yu

Wei Liu

Tiankuo Shi

Xiaomang Zhang

Haitao Huang

Chi Zhang

Yong Ma

Yinwei Chen

Mubing Li

Zhihui Zeng

Qian Wang

Lingyun Shi

Hui Zhao

Rui Liu

Hong Li

Xin Duan

Feng Gao

Hong Zhu

Jingtao Xu

Lin Zhang

Yanhui Xi

Wei Li

Shuai Liu

Jigang Sun

Yifan Hou

Yifang Chu

Junjie Ma

Shaolei Zong

Yilang Sun

An optical displaying system includes a display screen; a first light splitting unit, wherein a light ray emitted by the display screen is converted into a first-type polarized light or a second-type polarized light after passing through the first light splitting unit; an imaging unit, wherein a light ray exiting from the first light splitting unit forms an enlarged image corresponding to a first focal length after passing through the imaging unit; a second light splitting unit; a first optical-path unit, wherein the first-type polarized light transmitted from the second light splitting unit forms an enlarged image corresponding to a second focal length, and is converted into the second-type polarized light, after passing through the first optical-path unit; and a second optical-path unit, wherein the second-type polarized light reflected from the second light splitting unit is converted into the first-type polarized light after passing through the second optical-path unit.

Optical displaying system, displaying device and method for controlling optical displaying system

An optical system has an optical axis, and includes a positive focal power lens, a negative focal power lens and a display. The positive focal power lens includes a first convex surface away from the display and a second convex surface proximate to the display. The negative focal power lens includes a third convex surface away from the display and a fourth concave surface proximate to the display. For a refractive index of the positive focal power lens and a refractive index of the negative focal power lens, one is greater than another, and a greater refractive index is a first refractive index, a smaller refractive index is a second refractive index, the first refractive index is greater than 1.7, the second refractive index is greater than 1.5, and a ratio of the first refractive index to the second refractive index is less than or equal to 2.

Optical system and VR display device

A near-eye display device, including: a display screen () used for image display; an imaging lens () located at a light emission side of the display screen () and used for imaging a displayed image of the display screen (); a flat plate () located on the side of the imaging lens () facing away from the display screen () and obliquely arranged relative to the optical axis of the imaging lens (); a phase retardation layer () located on the side of the flat plate () facing the imaging lens (); a polarization beam-splitting layer () located between the phase retardation layer () and the flat plate (); a polarizing layer () located between the polarization splitting layer () and the flat plate (); and a curved mirror ().

Near-eye display device

The present disclosure relates to the technical field of oil and gas field exploitation, in particular to an early strength material suitable for a cement slurry system, a cement slurry composition, a cement slurry system, a preparation method therefor and the use thereof. The early strength material contains an aluminum salt, a sodium salt, crystal whiskers, an inorganic mineral and dispersing agent I, wherein the weight ratio of the aluminum salt, the sodium salt, the crystal whiskers, the inorganic mineral and dispersing agent I is (1-3):(1-3):(1-4):(1-8):1. The early strength material provided by the present invention has both high-temperature retarding performance and low-temperature early strength performance; meanwhile, while satisfying well cementing, the cement slurry system prepared from the cement slurry composition containing the early strength material can prolong thickening time of cement slurry under a high-temperature condition, can prevent ultra-retarding of top cement slurry under a low-temperature condition and has increased early strength.

Cement slurry system, preparation method therefor and use thereof

Embodiments of present disclosure relate to a capacitor assembly and a dry-type capacitor. The capacitor assembly includes: a first layer of capacitor elements; a second layer of capacitor elements, wherein the first layer of capacitor elements is stacked on the second layer of capacitor elements; a first busbar comprising a first conductive plate provided with a plurality of holes, wherein the first conductive plate is electrically coupled to the capacitor elements of the first layer via a plurality of connecting elements arranged at the respective holes of the first conductive plate; and a second busbar electrically coupled to the first busbar and including a second conductive plate provided with a plurality of holes, wherein the second conductive plate is electrically coupled to the capacitor elements of the second layer via a plurality of connecting elements arranged at the respective holes of the second conductive plate.

Capacitor assembly and dry-type capacitor

A head-up display system and a display apparatus are provided in this disclosure, which relates to a technical field of displaying. The head-up display system includes a display unit; a light splitting unit provided on a light emitting side of the display unit and configured to transmit a first linearly polarized light and block a second linearly polarized light, light emitted by the display unit being converted into the first linearly polarized light after passing through the light splitting unit; a light-transmitting substrate; a first imaging unit provided on an optical path from the light splitting unit to the light-transmitting substrate and configured to be able to transmit and reflect the first linearly polarized light; and a second imaging unit provided on a side of the light-transmitting substrate away from the first imaging unit, and configured to reflect the first linearly polarized light transmitted through the light-transmitting substrate.

Head-up display system, display apparatus and driving apparatus

A head up display system, including: a display screen used for displaying an image; an imaging lens arranged on a light exit side of the display screen and used for imaging an image displayed on the display screen; and a curved reflecting mirror arranged on the side of the imaging lens facing away from the display screen and used for receiving imaging light of the imaging lens and reflecting said light to the position where human eyes are located. Relative positions of the display screen and the imaging lens are fixed, and the imaging lens and the curved reflecting mirror adopt a separate structure.

Head up display system

The present invention relates to a picture display method. In the present invention, a target database for storing at least one candidate three-dimensional model and a feature matrix corresponding to each candidate three-dimensional model is created, wherein the candidate three-dimensional model is obtained on the basis of performing incomplete-part completion and/or color restoration on an initial three-dimensional model obtained by means of scanning by a picture scanning device. Therefore, after a picture including a target object is collected and a target feature matrix of the target object is determined on the basis of the picture including the target object, a target three-dimensional model, which matches the target object and has been subjected to incomplete part completion and/or color restoration, can be acquired from the target database on the basis of the target feature matrix of the target object, so as to display the target three-dimensional model.

Picture display method and apparatus, and device and medium

Provided are a device and a method for eliminating a stray light of a Fresnel lens and an optical apparatus. The device for eliminating a stray light of a Fresnel lens includes: at least one Fresnel lens body, wherein each Fresnel lens body has a flat surface and a concave-convex surface that are arranged oppositely, the concave-convex surface is provided with a plurality of optical parts, and each of the optical parts is provided with an optically working surface and an optically invalid surface; and at least one electro-barrier provided with a plurality of pixels arranged in an array, wherein the plurality of pixels are controllable to be turned on or off by an electrical signal to form a blocking region, and the blocking region is configured to block the optically invalid surface.

Device and method for eliminating stray light of Fresnel lens, and optical apparatus

An ultra-high temperature resistant cement slurry system comprising cement, an ultra-high temperature strength stabilizer, an ultra-high temperature reinforcing material, a density regulator, an ultra-high temperature suspension stabilizer, a dispersant, a fluid loss additive, a retarder, a defoaming agent and water, wherein the ultra-high temperature suspension stabilizer comprises an ether-based starch, an aluminosilicate and a polyalcohol polymer. The method for preparing the cement slurry system includes dry mixing and wet mixing raw materials homogeneously, respectively, and then homogeneously mixing the dry mix and wet mix to obtain the cement slurry system. The cement slurry system can be used for cementing in deep wells and ultra-deep wells at high and ultra-high temperatures.

Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof

A virtual reality display method and apparatus, and a storage medium are provided. The virtual reality display method includes: rendering display data of a plurality of screens in sequence by utilizing one thread of at least two threads, and after rendering the display data of the plurality of screens, correcting the rendered display data by using the at least two threads.

Virtual reality display method, device and storage medium

Provided are a mixed reality display method, a mixed reality device, and a storage medium. The method includes: after receiving a mixed display signal, tracking the eyeballs of a user by means of an eyeball tracker, and determining a gaze point of the user on a display screen; determining, according to a correspondence between the gaze point and a sub-display region in the display screen, the sub-display region the user gazes; determining at least one first image sensor according to a correspondence between the sub-display region and an image sensor in an image sensor array, and adjusting the at least one first image sensor; and superimposing and rendering an environment image output by the image sensor array and a virtual image, and obtaining and displaying an MR image.

Mixed reality display method, mixed reality device, and storage medium

Disclosed is a near eye display apparatus, comprising a display screen and an imaging system. The imaging system comprises a biconvex lens, a transflective plane mirror and a transflective curved mirror. The biconvex lens is configured to magnify a display image of the display screen; the transflective plane mirror is configured to receive imaging light from the biconvex lens and reflect same to the transflective curved mirror; and the transflective curved mirror is configured to converge the imaging light and reflect same to the position(s) where human eyes are located.

Near eye display apparatus

An image processing method includes: according to position coordinates of any interpolation pixel in a target image, determining position coordinate of the interpolation pixel in an original image; calculating a two-dimensional image entropy of an (n×n) neighborhood of the interpolation pixel in the original image; when it is greater than or equal to a preset entropy threshold value, calculating a pixel value of the interpolation pixel based on all original pixels; when it is less than the preset entropy threshold, calculating gradient values in at least two edge directions within the threshold neighborhood and determining whether there is a strong-edge direction; if so, calculating the pixel value of the interpolation pixel based on a plurality of original pixels in the strong-edge direction; if not, calculating the pixel value of the interpolation pixel based on all the original pixels.

Image processing methods for improving definition of image, electronic devices, and non-transitory computer-readable storage media

Provided a method for processing an image, including: acquiring an interpolation image by performing interpolation processing on a to-be-processed image, wherein the interpolation image includes a plurality of interpolation pixels; acquiring, for each of the interpolation pixels, a first candidate pixel value and a second candidate pixel value by adjusting the initial pixel value of the interpolation pixel; determining a first difference between a second derivative of the first candidate pixel value and a second derivative of a pixel value of a target original pixel; determining a second difference between a second derivative of the second candidate pixel value and the second derivative of the pixel value of the target original pixel; and updating the initial pixel value of the interpolation pixel; wherein the target original pixel includes each original pixel adjacent to the interpolation pixel.

Method and device for processing image, display device, and storage medium

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Beijing, China

Lili Chen