Title:
DIMMING DEVICE AND DIMMING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/160511
Kind Code:
A1
Abstract:
A dimming device and a dimming apparatus, which relate to the technical field of flexible dimming devices. The dimming device comprises a dimming film. The dimming film comprises a first area (11) and a second area (12), wherein the second area (12) is arranged in a circumferential direction of the first area (11) in a surrounding manner. The dimming film comprises a preset point O and a preset division line M, wherein the preset division line M divides the dimming film into a first part (10a) and a second part (10b). The first part (10a) satisfies A1A2 ≤ OB1 - L1, and the second part (10b) satisfies C1C2 ≤ OD1 - L2, wherein A1 represents a point on an outer contour line of the second area (12) that is farthest from the preset point O in the first part (10a); A2 represents an intersection point of a line segment OA1 and an outer contour line of the first area (11); B1 represents a point on the outer contour line of the second area (12) that is closest to the preset point O in the first part (10a); L1 represents the maximum perpendicular distance between the outer contour line of the first area (11) and the preset division line M in the first part (10a); C1 represents a point on the outer contour line of the second area (12) that is farthest from the preset point O in the second part (10b); C2 represents an intersection point of a line segment OC1 and the outer contour line of the first area (11); D1 represents a point on the outer contour line of the second area (12) that is closest to the preset point O in the second part (10b); and L2 represents the maximum perpendicular distance between the outer contour line of the first area (11) and the preset division line M in the second part (10b). The dimming device can alleviate the problem of edge wrinkles.
Inventors:
WANG WEISHU (CN)
Application Number:
PCT/CN2023/077293
Publication Date:
August 31, 2023
Filing Date:
February 21, 2023
Export Citation:
Assignee:
GUANGYI INTELLIGENT TECH SUZHOU CO LTD (CN)
International Classes:
B60J7/00; B60J1/00; G02F1/153
Foreign References:
| CN111409330A | 2020-07-14 | |||
| CN208914942U | 2019-05-31 | |||
| CN113748369A | 2021-12-03 | |||
| CN109116653A | 2019-01-01 | |||
| CN213814207U | 2021-07-27 | |||
| JP2008087702A | 2008-04-17 | |||
| US20190004387A1 | 2019-01-03 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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