Please select the most similar patent number from A, B, C and D. Which number is?
A transducer element (100), comprising: multiple array elements (10). At least one array element (10) comprises: a substrate (1); and a first electrode layer (2), a diaphragm layer (3), and a second electrode layer (4) which are sequentially stacked. The first electrode layer (2) and the second electrode layer (4) are insulated from one another. The array element (10) has a work area (A) and a peripheral area (B) that surrounds the work area (A); the work area (A) comprises multiple sub-work regions (A1); overlapping portions of the first electrode layer (2), diaphragm layer (3), and second electrode layer (4) form multiple cells (C) that are located in the work area (A). Multiple cavities (D) are provided between a portion of the diaphragm layer (3) located within the multiple sub-work regions (A1) and the first electrode layer (2), and may vibrate along a direction perpendicular to the substrate (1) between the first electrode layer (2) and the second electrode layer (4), so as to perform signal conversion; and two adjacent cavities (D) communicate with one another. The diaphragm layer (3) is provided with multiple release holes (E), and the multiple release holes (E) are located in the peripheral area (B); and one release hole (E) communicates with at least one cavity (D).
A: An optical sensor array substrate (30) and an optical fingerprint collector. The optical sensor array substrate (30) comprises a substrate (31), and the substrate (31) comprises a detection area (30A) and a peripheral area (30R) surrounding the detection area (30A), wherein the detection area (30A) comprises multiple photosensitive pixels (30a), and at least one of the multiple photosensitive pixels (30a) comprises: a thin film transistor (32), which is disposed on the substrate (31) and which has a gate (32a), an active layer (32b), a source (32c) and a drain (32d); a storage capacitor (33), which is disposed on the substrate (31) and which has a first capacitor plate (33a) and a second capacitor plate (33b), the second capacitor plate (33b) being located on the side of the first capacitor plate (33a) away from the substrate (31) and being electrically connected to the source (32c) or the drain (32d) of the thin film transistor (32); a photosensitive element (39), which is located on the side of the storage capacitor (33) away from the substrate (31), and one end of which is electrically connected to the second capacitor plate (33b); a first electrode layer (36a), which is located on the side of the photosensitive element (39) away from the substrate (31) and is electrically connected to the other end of the photosensitive element (39), wherein the orthographic projection of the second capacitor plate (33b) on the substrate (31) at least partially coincides with the orthographic projection of the first electrode layer (36a) on the substrate (31).
B: The present disclosure provides an acoustic transducer unit, comprising: a base substrate; a first electrode, located on one side of the base substrate; a supporting pattern, located on the side of the first electrode distant from the base substrate, the supporting pattern defining an accommodating slot, at least one release slot, and at least one connection slot, the orthographic projection of the release slot on the base substrate being spaced apart from the orthographic projection of the accommodating slot on the base substrate, and the connection slot being located between the accommodating slot and the release slot to make the accommodating slot communicated with the release slot; a diaphragm pattern, located on the side of the first electrode distant from the base substrate and capable of vibrating in the accommodating slot; and a filling pattern filling the release slot; and a second electrode located on the side of the diaphragm distant from the base substrate. The embodiments of the present disclosure also provide a preparation method for the acoustic transducer unit, and an acoustic transducer.
C: A touch substrate and a display device. The touch substrate comprises: a base substrate (100); a first electrode layer (110) which is located on one side of the base substrate (100) and comprises a plurality of mutually independent first electrodes (111), the shapes of orthogonal projections of the first electrodes (111) on the base substrate (100) being circular; a second electrode layer (120) located on the side of the first electrode layer (110) facing the base substrate (100) and insulated from the first electrode layer (110), an orthogonal projection of the second electrode layer (120) on the base substrate (100) and the orthogonal projections of the first electrodes (111) on the base substrate (100) having overlapping regions; and a wiring layer (130) located on the side of the first electrode layer (110) facing the base substrate (100) and insulated from the second electrode layer (120), wherein the wiring layer (130) comprises a plurality of touch wires (131), and one touch wire (131) is electrically connected to one first electrode (111) correspondingly.
D: A liquid crystal lens (100) having at least two drive regions. The liquid crystal lens (100) comprises a first electrode layer (1) and a second electrode layer (2). The first electrode layer (1) comprises a plurality of first electrode groups (10), each of the first electrode groups (10) comprising a plurality of first electrodes (101); the plurality of first electrodes (101) comprised in each of the first electrode groups (10) are configured to receive a plurality of first driving signals (SD 1 ) on a one-to-one basis, and each of the at least two drive regions corresponds to at least one first electrode group (10). The second electrode layer (2) is provided opposite the first electrode layer (1), and comprises at least one second electrode (201) configured to receive at least one second driving signal (SD 2 ) on a one-to-one basis. Driving voltages formed between the first driving signals (SD 1 ) received by the first electrodes (101) located at the same position and the second driving signals (SD 2 ) received by the corresponding second electrodes (201) are equal or substantially equal in the same drive region, and the absolute values of the driving voltages in different drive regions increase in the radial direction of the liquid crystal lens (100) and in a direction pointing to an edge from the center of the liquid crystal lens (100).
Answer: B