Please select the most similar patent number from A, B, C and D. Which number is?
A receiving structure of an automatic signal docking circuit, and an automatic signal docking device. When a male end of the automatic signal docking device approaches a female end of the automatic signal docking device, a plurality of attracting components on a first receiving plate and a plurality of attracting components on a second receiving plate of the receiving structure are attracted and close to each other, such that guiding components on the first receiving plate and guiding components on the second receiving plate are coupled to each other.
A: An array substrate comprises a semiconductor active layer (11), a gate insulation layer (12), a first metal layer (13), an interlayer dielectric layer (14), and a second metal layer (15) arranged in sequence. The array substrate is provided with a row drive unit therein. The row drive unit comprises a capacitor structure (20), and the capacitor structure (20) comprises a first capacitor plate (21) formed in the semiconductor active layer (11), a second capacitor plate (22) formed in the first metal layer (13), and a third capacitor plate (23) formed in the second metal layer (15). Projections of the first capacitor plate (21) and the second capacitor plate (22) on a base substrate (1) at least partially overlap. Projections of the second capacitor plate (22) and the third capacitor plate (23) on the base substrate (1) at least partially overlap. The third capacitor plate (23) is electrically connected to the first capacitor plate (21) by means of a first via hole (31). The invention reduces the surface area occupied by the row drive unit on the array substrate, thereby facilitating a slim bezel design of a display device.
B: Provided is a dispenser (100) for an electric washing appliance (1000). The dispenser (100) comprises a first receiving cavity body (101), a first component (103), a second receiving cavity body (102), a second component (104), a linkage structure (11), and a driving device (12), wherein the first receiving cavity body (101) is provided with a first receiving cavity (1011) and a first opening (1012), and the first opening (1012) is in communication with the first receiving cavity (1011); the first component (103) is movably arranged at the first opening (1012) and is used for opening and closing the first opening (1012); the second receiving cavity body (102) is provided with a second receiving cavity (1021) and a second opening (1022), and the second opening (1022) is in communication with the second receiving cavity (1021); the second component (104) is movably arranged at the second opening (1022) and is used for opening and closing the second opening (1022); the linkage structure (11) is connected to the first component (103) and the second component (104); and the driving device (12) is connected to the linkage structure (11), and the driving device (12) is used for driving, when the first component (103) closes the first opening (1012) and the second component (104) closes the second opening (1022), the linkage structure (11) to move so as to enable the first component (103) to open the first opening (1012) and the second component (104) to open the second opening (1022) at the same time or enable the first component (103) to open the first opening (1012) and the second component (104) to open the second opening (1022) at different times.
C: A signal mating device (30), the signal mating device (30) being used for mating a signal source (40) with an electronic product (101) to be tested. The signal mating device (30) comprises a frame (31), a first driving member (32), a track (33), a first mating end (34) and a second mating end (35), the first mating end (34) is connected to the signal source (40) and is provided corresponding to a inspection station (12), the second mating end (35) is provided on the track (33) and can move relative to the frame (31) along the track (33), and the first driving member (32) drives the second mating end (35) to move on the track (33); the signal mating device (30) further comprises a mating actuation mechanism (36) connected to the frame (31), the first mating end (34) being provided on the mating actuation mechanism (36), and being able to, under the driving of the mating actuation mechanism (36), be mated with the second mating end (35) which moves to the inspection station (12).
D: A sensor assembly (600), comprising a housing (81) and a circuit board assembly (82). The housing (81) comprises a first accommodation cavity (813), a second accommodation cavity (814), a first connection portion (815), a second connection portion (818) and a third accommodation cavity (816). The first connection portion (815) is connected to the first accommodation cavity (813) and one end of the third accommodation cavity (816), and the second connection portion (818) is connected to the second accommodation cavity (814) and the other end of the third accommodation cavity (816). The circuit board assembly (82) is accommodated within the first accommodation cavity (813), the second accommodation cavity (814), the first connection portion (815), the second connection portion (818) and the third accommodation cavity (816). The width of the first connection portion (815) and the second connection portion (818) is less than the width of the first accommodation cavity (813), the second accommodation cavity (814) and the third accommodation cavity (816). The first connection portion (815) and the second connection portion (818) are each provided with a buffer groove (817) along the width direction. The sensor assembly (600) can reduce motion artifacts when the user is moving, reduce the influence of the motion artifacts on the monitoring, and improve the accuracy of physiological signal monitoring.
Answer: C