公开(公告)号：US09912937B2

公开(公告)日：2018-03-06

申请号：US14646195

申请日：2014-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.

Inventor： Luqiang Guo ,  Weihao Hu ,  Daekeun Yoon ,  Zongze He ,  Lei Liu ,  Zhiming Meng ,  Jianming Wang

IPC: G09G3/36 ,  H04N13/04 ,  G02B27/26 ,  G09G3/20

CPC classification number: H04N13/302 ,  G02B27/26 ,  G09G3/003 ,  G09G3/2092 ,  G09G3/36 ,  G09G2300/0426 ,  G09G2300/08 ,  G09G2330/028

Abstract: The present disclosure provides a driving signal generating circuit, a driving signal generating method and a 3D display device. The driving signal generating circuit includes a voltage conversion unit, an output unit and a control unit. The voltage conversion unit is configured to convert an external input voltage into a plurality of polarization voltages for driving a polarization control panel in an active polarization 3D display device, and transmit the plurality of polarization voltages to the output unit. The control unit is configured to generate a control signal. The output unit is configured to output one of the polarization voltages or a zero voltage to the polarization control panel in a time-division manner according to the control signal.

公开(公告)号：US09424784B2

公开(公告)日：2016-08-23

申请号：US14480883

申请日：2014-09-09

Applicant: BOE Technology Group Co., Ltd. ,  Beijing BOE Display Technology Co., Ltd.

Inventor： Rui Guo ,  Zongze He ,  Lei Liu ,  Weihao Hu ,  Yoon Dae Keun

IPC: G09G5/00 ,  G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3426 ,  G09G3/3611 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/0646

Abstract: The present invention discloses a local backlight brightness adjustment method for a direct backlight in a display device, the method comprising the steps of: step 1: performing edge detection on an input image to determine whether a sensitive zone exists, the sensitive zone being a portion in the input image in which a gray level difference between adjacent pixels is greater than a predetermined threshold; and Step 2: if a sensitive zone exists, performing a backlight brightness adjustment with respect to a backlight region corresponding to the sensitive zone and a remaining backlight region other than the backlight region corresponding to the sensitive zone, respectively. According to the above-mentioned technical solution, since the backlight brightness adjustment are performed with respect to the backlight region corresponding to the sensitive zone and the remaining backlight region other than the backlight region corresponding to the sensitive zone, respectively, thus, when there is gray level abruptly-varying portion in the image, the display performance of the displayer can still be ensured.

Abstract translation: 本发明公开了一种用于显示装置中的直接背光的本地背光亮度调节方法，所述方法包括步骤1：对输入图像执行边缘检测以确定是否存在敏感区域，敏感区域是部分 在相邻像素之间的灰度级差大于预定阈值的输入图像中; 步骤2：如果存在敏感区域，则相对于对应于敏感区域的背光区域和与敏感区域对应的背光区域以外的剩余背光区域分别执行背光亮度调节。 根据上述技术方案，由于相对于对应于敏感区域的背光区域和与敏感区域对应的背光区域以外的剩余背光区域分别执行背光亮度调节，所以当存在 图像中的灰度级突然变化部分，仍然可以确保显示器的显示性能。