公开(公告)号：US20170155897A1

公开(公告)日：2017-06-01

申请号：US15122702

申请日：2015-10-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi WANG ,  Saihua CHEN ,  Xuefei WANG ,  Wanpeng TENG ,  Heliang DI ,  Zhihong DU ,  Shanshan ZHOU

IPC: H04N17/04 ,  H04N17/02

CPC classification number: H04N17/045 ,  G09G3/006 ,  G09G2300/026 ,  G09G2310/0221 ,  G09G2310/0232 ,  G09G2320/0242 ,  G09G2330/10 ,  G09G2340/045 ,  H04N17/02 ,  H04N17/04

Abstract: A testing method and a testing apparatus for splicing screens (1, 2, 3, 4) are provided. The method includes: outputting an image signal to a display screen, wherein the display screen includes a plurality of splicing screens (1, 2, 3, 4), the image signal includes a plurality of testing sub pictures, the testing sub pictures are arranged correspondingly to the splicing screens (1, 2, 3, 4) so as to enable the splicing screens (1, 2, 3, 4) to display the corresponding testing sub pictures, and the testing sub pictures include testing contents (5, 6, 7, 8, 9, 10, 11, 12); and testing the splicing screens (1, 2, 3, 4) through the testing contents (5, 6, 7, 8, 9, 10, 11, 12). Testing on the splicing screens (1, 2, 3, 4) is achieved, and a testing result can be used for regulating the splicing screens (1, 2, 3, 4), so that defects generated in the displaying process of the splicing screens (1, 2, 3, 4) are reduced.

公开(公告)号：US20190266932A1

公开(公告)日：2019-08-29

申请号：US16410148

申请日：2019-05-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tieshi WANG ,  Saihua CHEN ,  Xuefei WANG ,  Wanpeng TENG ,  Heliang DI ,  Zhihong DU ,  Shanshan ZHOU

IPC: G09G3/00 ,  G06T3/40 ,  G06F3/14

Abstract: A testing method for splicing screens is provided. The method includes: outputting an image signal to a display screen, wherein the display screen includes a plurality of splicing screens, the image signal includes a plurality of testing sub pictures, the testing sub pictures are arranged correspondingly to the splicing screens so as to enable the splicing screens to display the corresponding testing sub pictures, and the testing sub pictures include testing contents; and testing the splicing screens through the testing contents, wherein the testing contents include a graduation signal, by which an accurate test is performed on the splicing screens.

公开(公告)号：US20210029334A1

公开(公告)日：2021-01-28

申请号：US17045678

申请日：2019-01-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei WEI ,  Xiangxiang ZOU ,  Saihua CHEN

IPC: H04N9/31 ,  B60K35/00

Abstract: An angle-of-view testing method for a projection display device, including setting a reference viewpoint at a same side as a reflective surface associated with the projection display device, setting a metrical marker plate with a metrical marker at another side opposite to the reflective surface at a first distance from the reference viewpoint, projecting a testing picture onto the reflective surface by the projection display device, where light of the testing picture is reflected by the reflective surface toward the reference viewpoint, such that a projected image as a virtual image of the testing picture is observed at the reference viewpoint as being projected onto the metrical marker plate, determining the coverage of the projected image with respect to the metrical marker of the metrical marker plate, and determining an angle of view of the projection display device based on the determined coverage.