Jiangsu Hengxin Technology Limited Corporation

Chengdu Jiutian Huaxin Technology Co., Ltd

Jin Zhang

Yanping Hua

Zhonghua Liu

Jiawei Yu

Xianqi Lin

Yuan Jiang

Liying Nie

Zhe Chen

Zhanyu Kang

Peng Mei

The present invention discloses a control circuit and a control method for liquid crystal pixels, wherein the control circuit for liquid crystal pixels comprises a preset charging module, a second-order programming module and a first-order programming module which are connected in sequence. The present invention firstly charges the preset charging module, and then programs the preset charging module by the second-order programming module to make a voltage reach a maintenance voltage required by display of an image by a liquid crystal screen; and finally, the first-order programming module stores electric quantity for display of a next frame image when the liquid crystal screen displays a current image under the maintenance voltage, i.e., at the same time that the current image is displayed, the electric quantity required for display of the next frame image is prepared in advance.

Control circuit and control method for liquid crystal pixels

The present invention relates to a patch antenna having programmable frequency and polarization comprising the first metal covering layer, the dielectric layer, the second metal covering layer and four metallized through-holes, each of which are disposed sequentially from top to bottom, wherein the first metal covering layer comprises the feeding line and the radiating patch; the feeding line comprises the micro-strip line, which can be connected to the outer feeding port; the micro-strip line is connected to one side of the radiating patch through the high-resistance line; the radiating patch is a square-shaped metal patch; a gap is etched near the other side of the radiating patch, namely, the radiating edge; the gap is parallel to the radiating edge.

Patch antenna having programmable frequency and polarization

The present invention relates to a parallel-feeding, dual-band and dual-polarized base station antenna comprising a radiating patch layer, four F-shaped metal strips which are perpendicular to the radiating patch layer and orthogonal to each other, and a feeding layer, which is sequentially disposed from top to bottom, wherein the radiating patch layer comprises the first metal covering layer and the first dielectric layer; wherein the first metal covering layer is square-shaped and an isosceles triangle having the same size is cut from each corner of the square; wherein the four F-shaped metal strips work as the extended part of the feeding layer to couple-feed the radiating patch layer; the feeding layer comprises the first metal feed-line layer, the second dielectric layer, the metal floor layer, the third dielectric layer and the second metal feed-line layer, which are sequentially disposed from top to bottom.

Dual-frequency dual-polarized base station antenna for parallel dual feeding

Growing community of inventors

Sichuan, China

Jin Zhang