Mutual capacitive fingerprint identification device, preparation method, display panel and display device
A fingerprint identification and display panel technology, which is applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve the problems of difficult identification of fingerprints and low sensitivity of fingerprint identification, and improve the ability of fingerprint identification , the effect of increasing the area
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Embodiment 1
[0076] Embodiment one: see Figure 7 , the Tx line extends along the first direction, the Rx line extends along the second direction, the first direction and the second direction are perpendicular to each other, and each of the Tx lines includes three parts, namely the Tx main line, the first Tx branch line and the second Tx line Two Tx branch lines; wherein, the Tx main line is a Tx line extending along the first direction; the first Tx branch line is located on one side of the Tx main line and sandwiched between two adjacent Rx lines, and its length is less than that of the adjacent The distance between the Tx lines is half; the second Tx branch line is located on the other side of the Tx main line and sandwiched between two adjacent Rx lines, and the length is less than half the distance between adjacent Tx lines; specifically of, such as Figure 7 Partial enlarged view of the middle Tx line Figure 8 As shown, each of the Tx lines includes a Tx main line 8, a first Tx br...
Embodiment 2
[0077] Embodiment two: see Figure 9 The difference between the second embodiment and the first embodiment is that each Tx line has only a main line part and no branch line part.
Embodiment 3
[0078] Embodiment three: see Figure 10 , each Tx line is electrically connected at one end of two parallel wavy lines, and the other end extends along the first direction, and each Rx line is also electrically connected at one end of two parallel wavy lines, and the other end extends along the second direction, the The first direction and the second direction are perpendicular to each other.
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