US 11,893,170 B2
Method of positioning laser pointer light source and display device
Yang Rao, Shenzhen (CN); and Leli Peng, Shenzhen (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 17/600,578
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed May 28, 2021, PCT No. PCT/CN2021/096951
§ 371(c)(1), (2) Date Sep. 30, 2021,
PCT Pub. No. WO2022/147950, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 202110025785.8 (CN), filed on Jan. 8, 2021.
Prior Publication US 2022/0374093 A1, Nov. 24, 2022
Int. Cl. G06F 3/0354 (2013.01); G06F 3/0481 (2022.01)
CPC G06F 3/03545 (2013.01) [G06F 3/0481 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of positioning a laser pointer light source, comprising:
obtaining first position information of a first laser projection position of a laser pointer light source on a display panel and second position information of a second laser projection position of the laser pointer light source on the display panel;
obtaining first photosensitive information of the laser pointer light source at the first laser projection position of the display panel and second photosensitive information of the laser pointer light source at the second laser projection position of the display panel; and
determining target position information of the laser pointer light source according to the first position information, the second position information, the first photosensitive information, and/or the second photosensitive information;
wherein the first position information, the second position information, the first photosensitive information, and the second photosensitive information are obtained by a light sensor of the display panel;
wherein the obtaining of the first position information of the first laser projection position of the laser pointer light source on the display panel and the second position information of the second laser projection position of the laser pointer light source on the display panel comprises:
obtaining first target receiving point position information of a plurality of first target receiving points of the laser pointer light source at the first laser projection position of the display panel and first target photosensitive values respectively corresponding to the plurality of first target receiving points, and obtaining second target receiving point position information of a plurality of second target receiving points of the laser pointer light source at the second laser projection position of the display panel and second target photosensitive values respectively corresponding to the plurality of second target receiving points, wherein the first target receiving points and the second target receiving points are light sensors respectively arranged between pixels of the display panel, the first target receiving points are arranged between adjacent pixels of the display panel, and the second target receiving points are arranged between adjacent pixels of the display panel; and
determining the first position information according to the first target receiving point position information and the first target photosensitive values, and determining the second position information according to the second target receiving point position information and the second target photosensitive values,
wherein the determining of the first position information according to the first target receiving point position information and the first target photosensitive value, and the determining of the second position information according to the second target receiving point position information and the second target photosensitive values comprise:
performing a first weighted calculation and a second weighted calculation to determine the first position information according to the first target receiving point position information and the first target photosensitive values, and performing a third weighted calculation and a fourth weighted calculation to determine the second position information according to the second target receiving point position information and the second target photosensitive values;
wherein a formula for the first weighted calculation is:

OG Complex Work Unit Math
a formula for the second weighted calculation is:

OG Complex Work Unit Math
a formula for the third weighted calculation is:

OG Complex Work Unit Math
and
a formula for the fourth weighted calculation is:

OG Complex Work Unit Math
where (X1, Y1) is the first position information, (x1, 1), (x2, y2), (x3, y3), (x4, y4) . . . (xn, yn) are the first target receiving point position information, a1, a2, a3, a4 . . . an are the first target photosensitive values corresponding to the plurality of first target receiving points; and
(E2, F2) is the second position information, (e1, f1), (e2, f2), (e3, f3), (e4, f4) . . . (em, fm) are the second target receiving point position information, b1, b2, b3, b4 . . . bm are the second target photosensitive values corresponding to the plurality of second target receiving points.