WO2016115780A1 - 指纹识别器件及触控装置 - Google Patents

指纹识别器件及触控装置 Download PDF

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Publication number
WO2016115780A1
WO2016115780A1 PCT/CN2015/076546 CN2015076546W WO2016115780A1 WO 2016115780 A1 WO2016115780 A1 WO 2016115780A1 CN 2015076546 W CN2015076546 W CN 2015076546W WO 2016115780 A1 WO2016115780 A1 WO 2016115780A1
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WIPO (PCT)
Prior art keywords
fingerprint recognition
fingerprint
electrodes
area
fingerprint identification
Prior art date
Application number
PCT/CN2015/076546
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English (en)
French (fr)
Inventor
赵家阳
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to JP2017555824A priority Critical patent/JP6501911B2/ja
Priority to KR1020187007223A priority patent/KR20180029280A/ko
Priority to EP15787884.4A priority patent/EP3249573B1/en
Priority to KR1020157033921A priority patent/KR20160105290A/ko
Priority to US14/787,616 priority patent/US9626547B2/en
Publication of WO2016115780A1 publication Critical patent/WO2016115780A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1335—Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1329—Protecting the fingerprint sensor against damage caused by the finger
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a fingerprint recognition device and a touch device.
  • the fingerprint recognition is generally applied to the electronic device as a login management means, and the fingerprint identification device generally forms a fingerprint identification pattern 03 connected to the semiconductor chip 02 on the flexible circuit board 01 as shown in FIG.
  • the detection signal is transmitted to the semiconductor chip 02 to recognize the fingerprint pattern.
  • fingerprint recognition can be divided into push type and slide type.
  • the fingerprint identification pattern disposed on the flexible circuit board 01 is N*N electrodes, as shown in FIG. 2, the human body recognizes the fingerprint by pressing the flexible circuit board 01; for the sliding fingerprint
  • the fingerprint recognition pattern provided on the flexible circuit board 01 is 1*N electrodes, and as shown in FIG. 3, the finger slides in the direction of the arrow in FIG. 3 to recognize the fingerprint.
  • the sliding fingerprint recognition device can save space compared with the push type fingerprint recognition device, and is more suitable for application on a mobile device, but the sliding fingerprint recognition device can only slide the finger according to a specific manner when applied, and cannot be recognized if the finger is swiped according to other methods. Fingerprints are issued, so there are restrictions on user applications.
  • the embodiments of the present invention provide a fingerprint recognition device and a touch device, which are used to solve the problem that the existing sliding fingerprint recognition device can detect a fingerprint only when sliding a finger according to a specific manner.
  • an embodiment of the present invention provides a fingerprint identification device, including: a plurality of rectangular fingerprint identification areas distributed in a matrix; each of the fingerprint identification areas includes a plurality of diagonally arranged along the diagonal direction of the fingerprint identification area. And mutually independent fingerprint recognition electrodes; wherein the fingerprint recognition electrodes in each of the fingerprint recognition regions are arranged in the same direction.
  • At least one fingerprint identification area of one row is controlled by the same data processing chip; or at least one column of each fingerprint identification area is controlled by the same data processing chip.
  • each The number of fingerprint recognition electrodes in the fingerprint recognition area is the same.
  • each of the fingerprint identification areas adjacent to each other in the row direction is located.
  • the fingerprint recognition electrodes of the same position are electrically connected to each other; and when the fingerprint identification areas of at least one column are controlled by the same data processing chip, the fingerprint recognition electrodes located at the same position in each of the fingerprint recognition areas adjacent to each other in the column direction are electrically connected to each other.
  • each fingerprint identification area in each of the fingerprint identification areas adjacent to the diagonal line is identified in each of the fingerprint identification areas arranged in the array.
  • the electrodes are arranged on the same line.
  • each of the fingerprint recognition electrodes included in each of the fingerprint recognition regions is at a 45-degree angle with a frame of each of the fingerprint recognition regions. arrangement.
  • the distance between the fingerprint recognition electrodes located at the same position in each two adjacent fingerprint identification regions is 5 mm to 20 mm.
  • the center distance between adjacent fingerprint recognition electrodes in the same fingerprint identification area is 42.3 micrometers to 84.7 micrometers.
  • the embodiment of the invention further provides a touch device, comprising the above fingerprint recognition device.
  • the fingerprint identification device further has a protection layer thereon.
  • a fingerprint identification device and a touch device include a plurality of rectangular fingerprint identification regions distributed in a matrix, and each fingerprint recognition region includes a plurality of mutually independent arrays along a diagonal direction of the fingerprint identification region.
  • the fingerprint recognition electrode has the same arrangement direction of the fingerprint recognition electrodes in each fingerprint recognition area. Since each fingerprint recognition electrode is arranged along the same diagonal direction in each fingerprint recognition area, fingerprint recognition in the same or adjacent fingerprint recognition area when the finger slides in multiple directions on the fingerprint recognition device The electrode can detect the complete fingerprint information, thereby identifying the fingerprint, so that the sliding fingerprint recognition device is not restricted by the sliding direction of the finger, which improves the application range of the sliding fingerprint recognition device, and does not need to perform a large distance when the finger slides.
  • Sliding can detect the complete fingerprint, which improves the sensitivity of fingerprint sliding recognition.
  • Sliding fingerprint recognition device uses less fingerprint recognition than push-type fingerprint recognition It is extremely easy to detect a complete fingerprint image, which is beneficial to the cost reduction.
  • FIG. 1 is a schematic structural view of a fingerprint identification device in the prior art
  • FIG. 2 is a schematic diagram of a push-type fingerprint recognition pattern in the prior art
  • FIG. 3 is a schematic diagram of a sliding fingerprint recognition pattern in the prior art
  • FIGS. 4a-4c are schematic structural diagrams of a fingerprint identification device according to an embodiment of the present invention.
  • 5a-5f are schematic views of an example 1 of the present invention.
  • 6a-6f are schematic views of Example 2 of the present invention.
  • FIG. 7a and 7b are schematic views of Example 3 of the present invention.
  • FIG. 8 is a schematic structural diagram of a touch device according to an embodiment of the present disclosure.
  • FIG. 9 is a side view of a touch device according to an embodiment of the present invention.
  • a fingerprint identification device provided by an embodiment of the present invention includes: a plurality of rectangular fingerprint identification areas 100 distributed in a matrix; wherein FIG. 4a uses fingerprint recognition devices including 8 ⁇ 8 squares for fingerprint recognition.
  • the area 100 will be described as an example.
  • Each of the fingerprint recognition areas 100 includes a plurality of mutually independent fingerprint recognition electrodes 110 arranged along the diagonal direction of the fingerprint recognition area 100; and the arrangement directions of the fingerprint recognition electrodes 110 in each of the fingerprint recognition areas 100 are the same.
  • FIG. 4a illustrates an example in which each fingerprint recognition electrode 110 is arranged along the main diagonal direction of the fingerprint recognition area 100 (ie, from the upper left to the lower right diagonal direction).
  • the mutually independent fingerprint recognition electrodes mean that the respective fingerprint recognition electrodes are insulated from each other in the same fingerprint identification area.
  • each fingerprint recognition electrode 110 included in the fingerprint identification device provided by the embodiment of the present invention is not limited to the rectangle shown in FIG. 4a, and may be a shape such as a diamond shape or a circle shape.
  • each fingerprint identification electrode 110 is square in FIG. 4a, each fingerprint recognition area 100 is also square, and each fingerprint recognition electrode 110 is arranged diagonally end to end along the main diagonal direction of the fingerprint recognition area 100,
  • each fingerprint identification electrode 110 may be arranged along the diagonal direction of the fingerprint identification area 100, and each fingerprint identification is specifically designed.
  • the specific arrangement of the electrodes 110 is not limited herein.
  • the size of each fingerprint identification area divided in the fingerprint identification device provided by the embodiment of the present invention is generally the same, and the size of the fingerprint recognition electrode is generally the same.
  • the fingerprint recognition electrode 110 when the finger slides in any direction on the fingerprint recognition device, since the fingerprint recognition electrodes 110 are arranged along the same diagonal direction in each fingerprint recognition region 100, Therefore, when the finger slides in multiple directions, the fingerprint recognition electrode 110 belonging to the same or adjacent fingerprint recognition area 100 can detect the complete fingerprint information, thereby identifying the fingerprint, so that the sliding fingerprint recognition device is not subject to finger sliding
  • the limitation of the direction improves the application range of the sliding fingerprint recognition device, and can detect the complete fingerprint without sliding the large distance when the finger slides, thereby improving the sensitivity of the fingerprint sliding recognition.
  • a sliding fingerprint recognition device can detect a complete fingerprint image using fewer fingerprint recognition electrodes, which is advantageous for cost reduction.
  • the fingerprint identification device provided by the embodiment of the present invention often needs to synthesize the images detected by the fingerprint recognition electrodes 110 in the plurality of fingerprint recognition regions 100 to form a final fingerprint image when performing fingerprint recognition, in order to ensure The image resolutions obtained by the fingerprint recognition areas 100 are relatively consistent.
  • the number of the fingerprint recognition electrodes 110 in each fingerprint recognition area 100 is generally set to be the same, and each fingerprint is identified in FIG. 4a and FIG. 4c.
  • the area 100 includes six fingerprint recognition electrodes 110 as an example, that is, each fingerprint recognition area 100 is composed of six fingerprint recognition electrodes 110.
  • FIG. 4b it is a structural diagram of a matrix of the 2 ⁇ 2 fingerprint identification area in FIG. 4a.
  • the specific size of the fingerprint identification area 100 and the number of the fingerprint recognition electrodes 110 included in each fingerprint identification area 100 may be set in the fingerprint identification device according to actual needs, generally to ensure images acquired by each fingerprint identification area 100.
  • the distance between fingerprint recognition electrodes located at the same position in every two adjacent fingerprint recognition areas is generally controlled at 5mm-20mm is preferred.
  • the distance D1 between the fingerprint recognition electrodes 1101 and 1102 located at the same position in the two fingerprint identification areas 1001 and 1002 adjacent in the row direction is preferably 5 mm to 20 mm, and the same.
  • the distance D2 between the fingerprint recognition electrodes 1101 and 1103 located at the same position among the two adjacent fingerprint identification areas 1001 and 1003 in the column direction is preferably 5 mm to 20 mm.
  • the center distance between adjacent fingerprint recognition electrodes in the same fingerprint identification area should be controlled at 42.3 micrometers to 84.7 micrometers, correspondingly
  • the fingerprint recognition device has an identification resolution of 300 dpi to 600 dpi.
  • the center distances d1 (longitudinal center distance) and d2 (transverse center distance) of the two adjacent fingerprint identification electrodes 1104 and 1105 in the fingerprint identification area 1002 are preferably in the range of 42.3 ⁇ m. 84.7 ⁇ m.
  • each of the fingerprint identification areas 100 is arranged in a diagonally adjacent fingerprint identification area 100.
  • Each of the fingerprint recognition electrodes 110 is arranged on the same straight line, that is, the fingerprint recognition electrodes 110 on the diagonal of the diagonally adjacent fingerprint recognition areas 100 are relatively continuous.
  • each fingerprint identification area of at least one row may be controlled by the same data processing chip (IC); or each fingerprint identification area of at least one column may be controlled by the same data processing chip (IC). For example, as shown in FIG.
  • each fingerprint identification area of the same column is controlled by the same data processing chip (for example, IC1, IC2, IC3, ..., ICn), which can reduce the number of data processing chips (ICs) and reduce the cost.
  • IC data processing chip
  • a plurality of rows or columns of fingerprint identification areas may be controlled by a data processing chip (IC), which is not limited herein.
  • each fingerprint identification region 100 adjacent to the row direction may be The fingerprint recognition electrodes 110 located at the same position are electrically connected to each other, specifically, by wiring; or, when at least one column of each fingerprint identification area 100 is controlled by the same data processing chip (IC), each fingerprint adjacent to the column direction
  • the fingerprint recognition electrodes 110 located at the same position in the identification area 100 are electrically connected to each other. As shown in Fig. 4c, the fingerprint recognition electrodes 110 of the same column are electrically connected by wiring.
  • the fingerprint recognition electrodes 110 located at the same position in the adjacent fingerprint recognition regions 100 mean that each of the fingerprint recognition electrodes 110 included in each fingerprint recognition region 100 has the same number,
  • the fingerprint identification area 100 can be considered to include n fingerprint recognition electrodes 110.
  • the fingerprint recognition device may slide the finger in any direction during specific use.
  • each fingerprint is generally recognized.
  • the border of the area 100 is set to a square, such that each fingerprint recognition electrode 110 included in each fingerprint recognition area 100 is arranged at an angle of 45 degrees to the frame.
  • the fingerprint recognition electrodes 110 located at the same position in the fingerprint identification areas 100 adjacent to each other in the column direction shown in FIG. 4c are electrically connected to each other through wiring, and one column of the fingerprint identification area 100 is controlled by the same data processing chip (IC) as an example.
  • IC data processing chip
  • the operation of the fingerprint identification device provided by the embodiment of the present invention is described. Among them, a data processing chip will read out an imaged image.
  • a fingerprint recognition device can recognize a fingerprint in a plurality of sliding directions of a finger.
  • the initial region in which the finger slides covers a portion of the fingerprint recognition region 1001
  • the fingerprint pressing sliding range includes at least the left and right phases.
  • the two fingerprint recognition regions 1001 and 1002 of the adjacent fingerprint recognition electrodes, and thus the final image thereof is composed of the imaging 1 of the fingerprint recognition region 1001 and the imaging 2 of the fingerprint recognition region 1002 as shown in FIG. 5b, wherein the imaging 1 and imaging are performed. 2 respectively corresponding to the image read by the data processing chip connected to the first column and the second column fingerprint identification area.
  • the initial area of the finger sliding (the dotted line frame portion) is divided into two parts (the lower left part 201 and the upper right part 202) by the fingerprint identifying electrode of the fingerprint identifying area 1001 with the L as the dividing line, and the finger is sliding.
  • the fingerprint information of the lower left portion 201 is detected by the fingerprint recognition electrode of the fingerprint recognition area 1001 and transmitted to the IC corresponding to the fingerprint recognition area 1001 (the image of the image 1 in FIG. 5b is obtained)
  • the fingerprint information of the upper right portion 202 is fingerprint-recognized.
  • the fingerprint recognition electrode of the area 1002 is detected and transmitted to The IC corresponding to the fingerprint recognition area 1002 (the image of the image 2 in Fig. 5b is obtained), and then the image is processed to obtain the final image as shown in Fig. 5b.
  • the starting area of the finger sliding covers a part of the fingerprint identifying areas 1001 and 1002, and the fingerprint pressing sliding range includes at least two adjacent left and right sides.
  • the partial fingerprint recognition electrodes of the fingerprint recognition areas 1001 and 1002, and thus the final image thereof are combined by the imaging 1 of the fingerprint recognition area 1001 and the imaging 2 of the fingerprint recognition area 1002 as shown in FIG. 5d, wherein the imaging 1 and the imaging 2 respectively correspond to the An image read by a column and a second column of fingerprint identification areas.
  • the starting area of the finger sliding (the dotted line frame portion) is divided into two parts (the lower left part 301 and the upper right part 302) by the fingerprint identifying electrode of the fingerprint identifying area 1001 with the L as the dividing line, and the finger is
  • the fingerprint information of the lower left portion 301 is detected by the fingerprint recognition electrode of the fingerprint recognition area 1001 and transmitted to the IC corresponding to the fingerprint recognition area 1001 (the image of the image 1 in FIG. 5d is obtained), and the fingerprint information of the upper right portion 302 is fingerprinted.
  • the fingerprint recognition electrode of the recognition area 1002 detects and transmits to the IC corresponding to the fingerprint recognition area 1002 (the image of the image 2 in FIG. 5d is obtained), and then the image is processed to obtain the final image as shown in FIG. 5d.
  • the starting area of the finger sliding covers a part of the fingerprint identifying areas 1001 and 1003, and the fingerprint sliding range includes at least two columns of fingerprints adjacent to each other.
  • a portion of the fingerprint recognition electrode of the region (1001, 1002, 1003, 1004) is identified, and thus its final image is as shown in Fig. 5f, wherein the image 1 and the image 2 correspond to images read by the first column and the second column fingerprint recognition region, respectively.
  • the starting area of the finger sliding (the dotted line frame portion) is divided into three parts by the fingerprint identifying electrodes of the fingerprint identifying areas 1001 and 1003 with the L1 and L2 as the dividing line: the first part 401 and the second part 402 and the third portion 403, when the finger slides to the right, the fingerprint information of the first portion 401 is detected by the fingerprint recognition electrode of the fingerprint recognition area 1001 and transmitted to the IC corresponding to the fingerprint recognition area 1001, and the fingerprint information of the second portion 402 is The fingerprint identification electrode of the fingerprint identification area 1004 is detected and transmitted to the IC corresponding to the fingerprint identification area 1004.
  • the fingerprint information of the third part 403 is detected by the fingerprint recognition electrode of the fingerprint identification area 1003 and transmitted to the IC corresponding to the fingerprint identification area 1003.
  • the fingerprint identification areas 1001 and 1003 are in the same column, and the same IC is connected, so that the image obtained by combining the two images is corresponding to the image 1 in 5f. (including the fingerprint image of the first part 401 and the third part 403), the fingerprint identification area 1004 and the fingerprint identification areas 1001 and 1003 are different columns, and therefore the corresponding connected ICs are also different. Therefore, the image obtained by the fingerprint identification area 1004 corresponding to the IC corresponds to FIG. 5f. Imaging 2 (corresponding to the fingerprint image of the second portion 402), image 1 and image 2 pass The final image as shown in Fig. 5f is obtained by image processing.
  • the starting area of the finger sliding covers a portion of the fingerprint recognition area 1002, and the fingerprint sliding range includes at least the first The fingerprint recognition regions of the two fingerprint recognition regions 1002 and 1004 in the two columns, so the final image thereof is as shown in Fig. 6b, and the imaging of the second column fingerprint recognition region is synthesized by image processing.
  • the imaging of the second column fingerprint recognition region is synthesized by image processing.
  • the initial area of the finger sliding (the dotted line frame portion) is divided into two parts by the fingerprint recognition electrode of the fingerprint recognition area 1002 with the L as the boundary line (the lower left part 501 and the upper right part 502), and the finger is in the direction.
  • the fingerprint information of the lower left portion 501 is detected by the fingerprint recognition electrode of the fingerprint recognition area 1004 and transmitted to the IC corresponding to the fingerprint recognition area 1004, and the fingerprint information of the upper right portion 502 is detected by the fingerprint recognition electrode of the fingerprint identification area 1002.
  • the IC corresponding to the fingerprint identification area 1002 is mentioned in the above embodiment corresponding to FIG. 4c.
  • the fingerprint identification areas 1002 and 1004 are in the same column, and the same IC is connected, so that the two images are combined.
  • the image corresponds to Imaging 1 in 6b (including the fingerprint image of the lower left portion 501 and the upper right portion 502), resulting in a final image as shown in Figure 6b.
  • the initial area of the finger sliding covers part of the fingerprint identification areas 1001 and 1002, and the fingerprint sliding range includes at least two columns of fingerprint identification areas adjacent to each other (The partial fingerprint recognition electrodes of 1001, 1002, 1003, 1004), and thus the final image thereof are as shown in Fig. 6d, wherein the imaging 1 and the imaging 2 correspond to the images read by the first column and the second column fingerprint identification area, respectively.
  • FIG. 6d shows that the imaging 1 and the imaging 2 correspond to the images read by the first column and the second column fingerprint identification area, respectively.
  • the starting area of the finger sliding (the dotted line frame portion) is divided into four parts by the fingerprint identifying electrodes of the fingerprint identifying areas 1001 and 1002 with the L1, L2, and L3 as the dividing lines: the first part 601, the first The two parts 602, the third part 603, and the fourth part 604, when the finger is sliding downward, the fingerprint information of the first part 601 is detected by the fingerprint recognition electrode of the fingerprint identification area 1003 and transmitted to the IC corresponding to the fingerprint identification area 1003.
  • the fingerprint information of the second portion 602 is detected by the fingerprint recognition electrode of the fingerprint identification area 1001 and transmitted to the IC corresponding to the fingerprint identification area 1001.
  • 1001 and 1003 are located in the same column.
  • the two regions are connected to the same IC, so the images obtained by the combination of the images detected by 1001 and 1003 correspond to the image 1 in FIG. 6d (ie, the second portion 602 and the first portion 601).
  • the fingerprint information of the third part 603 is detected by the fingerprint recognition electrode of the fingerprint identification area 1004 and transmitted to the IC corresponding to the fingerprint identification area 1004, and the fingerprint information of the fourth part 604 is recognized by the fingerprint of the fingerprint identification area 1002.
  • the electrode detection is obtained and transmitted to the IC corresponding to the fingerprint identification area 1002, where 1002 and 1004 are in the same column and connected by the same IC, so the fingerprint image of the imaging 2 in FIG. 6d corresponds to the fingerprint identification area 1002.
  • the combination of the fingerprint images detected by 1004 i.e., the combination of the fingerprint images of the fourth portion 604 and the third portion 603 in Fig. 6c
  • the imaging 1 and the imaging 2 in Fig. 6c are processed by the image to obtain the image as shown in Fig. 6d.
  • the final image i.e., the combination of the fingerprint images of the fourth portion 604 and the third portion 603 in Fig. 6c
  • the initial region in which the finger slides covers a portion of the fingerprint recognition region 1001
  • the fingerprint pressing sliding range includes at least the first column.
  • the partial fingerprint recognition electrodes of the two fingerprint recognition areas 1001 and 1003, and thus their final images are synthesized by image processing by the imaging of the first column of fingerprint identification areas as shown in Fig. 6f. Specifically, as shown in FIG.
  • the initial area of the finger sliding (the dotted line frame portion) is divided into two parts by the fingerprint recognition electrode of the fingerprint identification area 1001 with the L as the boundary line (the lower left part 701 and the upper right part 702), and the finger is in the direction.
  • the fingerprint information of the lower left portion 701 is detected by the fingerprint recognition electrode of the fingerprint recognition area 1003 and transmitted to the IC corresponding to the fingerprint recognition area 1003, and the fingerprint information of the upper right portion 702 is detected by the fingerprint recognition electrode of the fingerprint identification area 1001.
  • the IC corresponding to the fingerprint identification area 1001 is mentioned in the above embodiment corresponding to FIG. 4c.
  • the fingerprint identification areas 1001 and 1003 are in the same column, and the same IC is connected, so that the two images are combined.
  • the image corresponds to the image 1 in 6f (including the fingerprint image of the lower left portion 701 and the upper right portion 702), and the second column region (including the fingerprint recognition regions 1002 and 1004) is not covered when the finger slides down, so the second column
  • the corresponding IC did not detect any image, so a fingerprint image containing only imaging 1 in the final image as shown in Fig. 6f was obtained.
  • Example 3 the finger slides diagonally:
  • the fingerprint sliding range includes at least a part of the fingerprint recognition electrodes of the two adjacent fingerprint recognition areas (1001, 1002, 1003, 1004), so the final image is as shown in FIG. 7b, wherein the imaging 1 and the imaging 2 respectively correspond to the first The image read by the column and the second column fingerprint identification area. Specifically, as shown in FIG.
  • the fingerprint recognition electrodes of the fingerprint identification areas 1001 and 1003 with the L1 and L2 as the boundary lines are divided into three parts: the first part 801, the second part 802, and the third part 803, and the fingerprint information of the first part 801 when the finger is sliding obliquely
  • the fingerprint identification electrode of the fingerprint identification area 1001 is detected and transmitted to the IC corresponding to the fingerprint identification area 1001
  • the fingerprint information of the second part 802 is detected by the fingerprint recognition electrode of the fingerprint identification area 1004 and transmitted to the IC corresponding to the fingerprint identification area 1004.
  • the fingerprint information of the third part 803 is detected by the fingerprint recognition electrode of the fingerprint identification area 1003 and transmitted to the IC corresponding to the fingerprint identification area 1003.
  • the fingerprint identification areas 1001 and 1003 are in the same column, and connected. It is the same IC, so the image obtained by the combination of the two detected images corresponds to the image 1 in 7b (including the fingerprint images of the first portion 801 and the third portion 803), and the fingerprint recognition region 1004 is different from the fingerprint recognition regions 1001 and 1003. Columns, so the corresponding connected ICs are also different, so the image obtained by the fingerprint recognition area 1004 corresponding to the IC corresponds to the image 2 in FIG. 7b (corresponding to the second part 802) Fingerprint images), images 1 and 2 obtained through the image processing by the final image shown in Figure 7b.
  • the complete fingerprint information can be synthesized according to the imaging of the fingerprint recognition electrode 110 in the fingerprint recognition area 100 belonging to the same column or adjacent column included in the fingerprint pressing range. Therefore, the fingerprint is recognized, so that the sliding fingerprint recognition device is substantially free from the limitation of the sliding direction of the finger, thereby improving the application range of the sliding fingerprint recognition device.
  • the embodiment of the present invention further provides a touch device including the above fingerprint recognition device. Since the principle of solving the problem is similar to the foregoing fingerprint recognition device, the implementation of the touch device can be implemented. See the implementation of the fingerprint identification device, and the repetition will not be repeated.
  • the touch device can be any product or component with touch function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the touch device provided by the embodiment of the present invention includes a peripheral area a and a display area b having a plurality of touch electrodes arranged in an array.
  • the identification device is located in the display area b composed of the touch electrodes.
  • the touch device provided by the embodiment of the present invention may be an in-cell touch panel or an external touch panel, and is not limited thereto.
  • the touch device provided by the embodiment of the invention can realize fingerprint detection for sliding in multiple directions of the finger while implementing touch display.
  • the fingerprint identification device provided by the embodiment of the present invention may be located inside the touch device or on the light emitting side surface of the touch device.
  • a protective layer may be disposed on the fingerprint recognition electrode.
  • the surface of the touch display device is conventional.
  • a protective layer on the fingerprint recognition device, for example, a transparent protective layer such as SiN or SiO, and the thickness thereof is generally not more than 20 ⁇ m.
  • a fingerprint identification device and a touch device include a plurality of rectangular fingerprint identification regions distributed in a matrix, and each fingerprint recognition region includes a plurality of mutually independent arrays along a diagonal direction of the fingerprint identification region.
  • the fingerprint recognition electrode has the same arrangement direction of the fingerprint recognition electrodes in each fingerprint recognition area. Since each fingerprint recognition electrode is arranged along the same diagonal direction in each fingerprint recognition area, fingerprint recognition in the same or adjacent fingerprint recognition area when the finger slides in multiple directions on the fingerprint recognition device The electrode can detect the complete fingerprint information, thereby identifying the fingerprint, so that the sliding fingerprint recognition device is not restricted by the sliding direction of the finger, which improves the application range of the sliding fingerprint recognition device, and does not need to perform a large distance when the finger slides.
  • a sliding fingerprint recognition device can detect a complete fingerprint image using fewer fingerprint recognition electrodes, which is advantageous for cost reduction.

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  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
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  • Collating Specific Patterns (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
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Abstract

一种指纹识别器件及触控装置，包括多个呈矩阵排列的矩形的指纹识别区域(100)，各指纹识别区域(100)包括沿着指纹识别区域(100)的对角线方向排列的多个相互独立的指纹识别电极(110)，各指纹识别区域(100)中的指纹识别电极(110)的排列方向相同。由于在各指纹识别区域(100)中各指纹识别电极(110)沿着相同的对角线方向排列，因此当手指在指纹识别器件上沿着多个方向滑动时，属于同一或相邻的指纹识别区域(100)中的指纹识别电极(110)可以检测到完整的指纹信息，从而识别出指纹，使滑动式指纹识别器件不受手指滑动方向的限制，提高了滑动式指纹识别器件的应用范围。

Description

指纹识别器件及触控装置 技术领域
本发明涉及显示技术领域，尤其涉及一种指纹识别器件及触控装置。
背景技术
目前，指纹识别一般应用在电子设备上作为登录管理手段，而指纹识别装置一般是如图1所示，在柔性电路板01上形成与半导体芯片02连接的指纹识别图案03，通过指纹识别图案03将检测信号传输到半导体芯片02以识别出指纹图形。根据识别的方式不同，指纹识别可以分为按压式和滑动式。具体地，对于按压式指纹识别，在柔性电路板01上设置的指纹识别图案为N*N个电极，如图2所示，人体通过按压柔性电路板01的方式识别出指纹；对于滑动式指纹识别，在柔性电路板01上设置的指纹识别图案为1*N个电极，如图3所示，手指按照图3中箭头方向滑动以识别出指纹。
滑动式指纹识别装置相对于按压式指纹识别装置可以节省空间，更适合应用在移动设备上，但是滑动式指纹识别装置在应用时只能按照特定方式滑动手指，若按照其他方式滑动手指则无法识别出指纹，因此对于用户应用会受到限制。
发明内容
有鉴于此，本发明实施例提供了一种指纹识别器件及触控装置，用以解决现有的滑动式指纹识别装置仅能在按照特定方式滑动手指时才能检测出指纹的问题。
因此，本发明实施例提供了一种指纹识别器件，包括：多个呈矩阵分布的矩形的指纹识别区域；各所述指纹识别区域包括沿着所述指纹识别区域的对角线方向排列的多个相互独立的指纹识别电极；其中，各所述指纹识别区域中的指纹识别电极的排列方向相同。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，至少一行的各指纹识别区域由同一数据处理芯片控制；或者至少一列的各指纹识别区域由同一数据处理芯片控制。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，各 所述指纹识别区域中的指纹识别电极的个数相同。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，在至少一行的各指纹识别区域由同一数据处理芯片控制时，行方向相邻的各所述指纹识别区域中位于同一位置的指纹识别电极相互电连接；以及在至少一列的各指纹识别区域由同一数据处理芯片控制时，列方向相邻的各所述指纹识别区域中位于同一位置的指纹识别电极相互电连接。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，在阵列排列的各所述指纹识别区域中，对角线相邻的各所述指纹识别区域中的各指纹识别电极排列在同一直线上。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，各所述指纹识别区域包括的各指纹识别电极沿着与各所述指纹识别区域的边框呈45度角的方向排列。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，每两个相邻的所述指纹识别区域中位于同一位置的指纹识别电极之间的距离为5mm-20mm。
在一种可能的实现方式中，在本发明实施例提供的指纹识别器件中，在同一指纹识别区域内相邻的指纹识别电极之间的中心距离为42.3微米到84.7微米。
本发明实施例还提供了一种触控装置，包括上述的指纹识别器件。
在一种可能的实现方式中，在本发明实施例提供的触控装置中，所述指纹识别器件之上还具有保护层。
本发明实施例提供的一种指纹识别器件及触控装置，包括多个呈矩阵分布的矩形的指纹识别区域，各指纹识别区域包括沿着指纹识别区域的对角线方向排列的多个相互独立的指纹识别电极，各指纹识别区域中的指纹识别电极的排列方向相同。由于在各指纹识别区域中各指纹识别电极沿着相同的对角线方向排列，因此当手指在指纹识别器件上沿着多个方向滑动时，属于同一或相邻的指纹识别区域中的指纹识别电极可以检测到完整的指纹信息，从而识别出指纹，使滑动式指纹识别器件不受手指滑动方向的限制，提高了滑动式指纹识别器件的应用范围，并且在手指滑动时不需要进行大距离的滑动就能检测到完整的指纹，提升了指纹滑动识别的灵敏性。相对于按压式指纹识别而言，根据本发明实施例的滑动式指纹识别器件使用较少的指纹识别电 极就能检测到完整的指纹图像，这样有利于成本的降低。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中指纹识别装置的结构示意图；
图2为现有技术中按压式指纹识别图案的示意图；
图3为现有技术中滑动式指纹识别图案的示意图；
图4a-4c为本发明实施例提供的指纹识别器件的结构示意图；
图5a-5f分别为本发明实例一的示意图；
图6a-6f分别为本发明实例二的示意图；
图7a和图7b分别为本发明实例三的示意图；
图8为本发明实施例提供的触控装置的结构示意图；
图9为本发明实施例提供的触控装置的侧视图。
具体实施方式
下面结合附图，对本发明实施例提供的指纹识别器件及触控装置的具体实施方式进行详细地说明。
附图中各部件的大小和形状不反映真实比例，目的只是示意说明本发明内容。
本发明实施例提供的一种指纹识别器件，如图4a所示，包括：多个呈矩阵分布的矩形的指纹识别区域100；其中，图4a以指纹识别器件包括8×8个正方形的指纹识别区域100为例进行说明。
各指纹识别区域100包括沿着指纹识别区域100的对角线方向排列的多个相互独立的指纹识别电极110；并且各指纹识别区域100中的指纹识别电极110的排列方向相同。具体地，图4a以各指纹识别电极110均沿着指纹识别区域100的主对角线方向(即从左上到右下的对角线方向)排列为例进行说明。这里，相互独立的指纹识别电极是指在同一指纹识别区域中各个指纹识别电极是相互绝缘的。
在具体实施时，本发明实施例提供的上述指纹识别器件中包含的各指纹识别电极110的具体形状并不限于图4a所示的矩形，还可以是菱形或圆形等形状。尽管在图4a中各指纹识别电极110为正方形、各指纹识别区域100也为正方形、并且各指纹识别电极110沿着指纹识别区域100的主对角线方向以对角线首尾相连的方式排列，然而在具体实施时，根据指纹识别区域100的形状以及指纹识别电极110的具体形状，可以按照各指纹识别电极110均沿着指纹识别区域100的对角线方向排列的规则，具体设计各指纹识别电极110的具体排布，在此不做限定。
一般地，本发明实施例提供的上述指纹识别器件中划分的各指纹识别区域的尺寸一般相同，指纹识别电极的尺寸一般也相同。
在本发明实施例提供的上述指纹识别器件中，当手指在上述指纹识别器件上以任何方向滑动时，由于在各指纹识别区域100中各指纹识别电极110沿着相同的对角线方向排列，因此在手指沿着多个方向滑动时，属于同一或相邻的指纹识别区域100中的指纹识别电极110可以检测到完整的指纹信息，从而识别出指纹，使滑动式指纹识别器件不受手指滑动方向的限制，提高了滑动式指纹识别器件的应用范围，并且在手指滑动时不需要进行大距离的滑动就能检测到完整的指纹，提升了指纹滑动识别的灵敏性。相对于按压式指纹识别而言，根据本发明实施例的滑动式指纹识别器件使用较少的指纹识别电极就能检测到完整的指纹图像，这样有利于成本的降低。
在具体实施时，由于本发明实施例提供的上述指纹识别器件在进行指纹识别时往往需要将多个指纹识别区域100中的指纹识别电极110检测到的图像进行合成形成最终的指纹图像，为了保证各指纹识别区域100获取到的图像分辨率相对一致，在具体设计时，一般将各指纹识别区域100中的指纹识别电极110的个数设置为相同，图4a和图4c中以每个指纹识别区域100均包含6个指纹识别电极110为例进行说明，即每个指纹识别区域100均由6个指纹识别电极110组成。
如图4b所示，是图4a中的2×2指纹识别区域的矩阵的结构示意图。在具体实施时，可以根据实际需要在指纹识别器件中设置指纹识别区域100的具体尺寸以及每个指纹识别区域100中包含的指纹识别电极110的数量，一般为了保证各指纹识别区域100获取的图像的连续性和完整性，每两个相邻的指纹识别区域中位于同一位置的指纹识别电极之间的距离一般控制在 5mm-20mm为佳。具体的，如图4b所示，在行方向上相邻的两个指纹识别区域1001和1002中位于同一位置的指纹识别电极1101和1102之间的距离D1的范围优选为5mm-20mm，同样的，列方向上相邻的两个指纹识别区域1001和1003中位于同一位置的指纹识别电极1101和1103之间的距离D2的范围优选为5mm-20mm。
另外，为了保证各指纹识别区域获取图像的清晰度，提升触控灵敏度，一般在同一指纹识别区域内相邻的指纹识别电极之间的中心距离应控制在42.3微米到84.7微米，相应地所述指纹识别器件的识别分辨率为300dpi到600dpi。具体的，如图4b所示，在指纹识别区域1002中相邻的两个指纹识别电极1104和1105的中心距d1(纵向中心距)和d2(横向中心距)优选的范围都在42.3μm-84.7μm。
并且，如图4c所示，为了保证各指纹识别区域100获取的图像的连续性，在具体设计时，一般将各指纹识别区域100的阵列排列中对角线相邻的各指纹识别区域100中的各指纹识别电极110排列在同一直线上，即在对角线相邻的指纹识别区域100的对角线上的各指纹识别电极110排列相对连续。
从上述描述可知，在本发明实施例提供的上述指纹识别器件中包含的指纹识别电极110数量较多，若每个指纹识别区域100的指纹识别电极均通过导线单独和一一对应的数据处理芯片(IC)连接，指纹识别器件中数据处理芯片(IC)将非常复杂。因此，在具体实施时，可以将至少一行的各指纹识别区域由同一数据处理芯片(IC)控制；或者，将至少一列的各指纹识别区域由同一数据处理芯片(IC)控制。例如图4c所示，将同一列的各指纹识别区域由同一数据处理芯片(例如IC1、IC2、IC3……ICn)控制，这样可以减小了数据处理芯片(IC)的数量，降低了成本。当然也可以由一个数据处理芯片(IC)控制多行或者多列指纹识别区域，在此不做限定。
进一步地，为了减少指纹识别器件中布线数量，在具体实施时，当至少一行的各指纹识别区域100由同一数据处理芯片(IC)控制时，可以将行方向相邻的各指纹识别区域100中位于同一位置的指纹识别电极110相互电连接，具体的，通过布线进行连接；或者，当至少一列的各指纹识别区域100由同一数据处理芯片(IC)控制时，将列方向相邻的各指纹识别区域100中位于同一位置的指纹识别电极110相互电连接。如图4c所示，就是通过布线把同一列的指纹识别电极110电连接。
值得注意的是，在上述描述中相邻的各指纹识别区域100中位于同一位置的指纹识别电极110是指：在各指纹识别区域100中包含的指纹识别电极110数量相同的情况下，每个指纹识别区域100中可以认为包含n个指纹识别电极110，位于同一位置的指纹识别电极110即为每个指纹识别区域100中的第j个指纹识别电极，j＝1……n，例如图4b中的1101和1102为行方向上相邻的两个指纹识别区域1001和1002同一位置的指纹识别电极；1101和1103为列方向上相邻的两个指纹识别区域1001和1003同一位置的指纹识别电极。
较佳地，由于本发明实施例提供的上述指纹识别器件，在具体使用时手指可能在任何方向滑动，为了保证任何情况均可检测到完整的指纹信息，在具体实施时，一般将各指纹识别区域100的边框设置为正方形，这样各指纹识别区域100包括的各指纹识别电极110沿着与边框成45度角排列。
下面以图4c所示的列方向相邻的各指纹识别区域100中位于同一位置的指纹识别电极110通过布线相互导通、且一列指纹识别区域100由同一数据处理芯片(IC)控制为例，来说明本发明实施例提供的指纹识别器件的操作。其中，一个数据处理芯片会读取出一个成像图像。根据本发明实施例的指纹识别器件在手指多个滑动方向均可以识别出指纹。
实例一，手指向右或向左滑动：
当手指向右滑动时，根据手指滑动的初始区域和指纹按压滑动的范围不同，可以有多种情况，下面以三种情况为例进行说明。
第一种情况，如图5a所示，其中箭头表示手指滑动方向，手指滑动的初始区域(如图5a中虚线框所示)覆盖指纹识别区域1001的部分区域，指纹按压滑动范围至少包含左右相邻的两个指纹识别区域1001和1002的部分指纹识别电极，因此其最终图像如图5b所示由指纹识别区域1001的成像1和指纹识别区域1002的成像2组合而成，其中成像1和成像2分别对应第一列和第二列指纹识别区域所连接的数据处理芯片读取出的图像。具体的，如图5a所示，手指滑动的初始区域(虚线框部分)以L为分界线被指纹识别区域1001的指纹识别电极分为两部分(左下部分201和右上部分202)，手指在滑动时，左下部分201的指纹信息被指纹识别区域1001的指纹识别电极检测得到并传给指纹识别区域1001对应的IC(得到图5b中的成像1的图像)，右上部分202的指纹信息被指纹识别区域1002的指纹识别电极检测得到并传给 指纹识别区域1002对应的IC(得到图5b中的成像2的图像)，之后通过图像处理后得到如图5b所示的最终图像。
第二种情况，如图5c所示，手指滑动的起始区域(如图5c中虚线框所示)覆盖指纹识别区域1001和1002的部分区域，指纹按压滑动范围至少包含左右相邻的两个指纹识别区域1001和1002的部分指纹识别电极，因此其最终图像如图5d所示由指纹识别区域1001的成像1和指纹识别区域1002的成像2组合而成，其中成像1和成像2分别对应第一列和第二列指纹识别区域读取的图像。具体的，如图5c所示，手指滑动的起始区域(虚线框部分)以L为分界线被指纹识别区域1001的指纹识别电极分为两部分(左下部分301和右上部分302)，手指在滑动时，左下部分301的指纹信息被指纹识别区域1001的指纹识别电极检测得到并传给指纹识别区域1001对应的IC(得到图5d中的成像1的图像)，右上部分302的指纹信息被指纹识别区域1002的指纹识别电极检测得到并传给指纹识别区域1002对应的IC(得到图5d中的成像2的图像)，之后通过图像处理后得到如图5d所示的最终图像。
第三种情况，如图5e所示，手指滑动的起始区域(如图5e中虚线框所示)覆盖指纹识别区域1001和1003的部分区域，指纹滑动范围至少包含左右相邻的两列指纹识别区域(1001、1002、1003、1004)的部分指纹识别电极，因此其最终图像如图5f所示，其中成像1和成像2分别对应第一列和第二列指纹识别区域读取的图像。具体的，如图5e所示，手指滑动的起始区域(虚线框部分)以L1和L2为分界线被指纹识别区域1001和1003的指纹识别电极分为三部分：第一部分401、第二部分402和第三部分403，手指在向右滑动时，第一部分401的指纹信息被指纹识别区域1001的指纹识别电极检测得到并传给指纹识别区域1001对应的IC，第二部分402的指纹信息被指纹识别区域1004的指纹识别电极检测得到并传给指纹识别区域1004对应的IC，第三部分403的指纹信息被指纹识别区域1003的指纹识别电极检测得到并传给指纹识别区域1003对应的IC。在上述对应附图4c的实施例中提到过，指纹识别区域1001和1003处在同一列，连接的是同一IC，因此两者检测到图像组合后得到的图像对应的是5f中的成像1(包含第一部分401和第三部分403的指纹图像)，指纹识别区域1004与指纹识别区域1001和1003不同列，因此对应连接的IC也不同，因此指纹识别区域1004对应IC得到的图像对应图5f中的成像2(对应第二部分402的指纹图像)，图像1和图像2经过 通过图像处理后得到如图5f所示的最终图像。
同理，手指向左滑动和上述向右滑动时情况原理类似，在此不作赘述。
实例二，手指向下或向上滑动：
当手指向下滑动时，根据手指滑动的起点和指纹按压的范围不同，可以有多种情况，下面以三种情况为例进行说明。
第一种情况，如图6a所示，其中箭头表示手指滑动方向，手指滑动的起始区域(如图6a中虚线框所示)覆盖指纹识别区域1002的部分区域，指纹按压滑动范围至少包含第二列中两个指纹识别区域1002和1004的部分指纹识别电极，因此其最终图像如图6b所示，由第二列指纹识别区域的成像经图像处理合成。具体的，如图6a所示，手指滑动的初始区域(虚线框部分)以L为分界线被指纹识别区域1002的指纹识别电极分为两部分(左下部分501和右上部分502)，手指在向下滑动时，左下部分501的指纹信息被指纹识别区域1004的指纹识别电极检测得到并传给指纹识别区域1004对应的IC，右上部分502的指纹信息被指纹识别区域1002的指纹识别电极检测得到并传给指纹识别区域1002对应的IC，在上述对应附图4c的实施例中提到过，指纹识别区域1002和1004处在同一列，连接的是同一IC，因此两者检测到图像组合后得到的图像对应的是6b中的成像1(包含左下部分501和右上部分502的指纹图像)，得到如图6b所示的最终图像。
第二种情况，如图6c所示，手指滑动的初始区域(如图6c中虚线框所示)覆盖部分指纹识别区域1001和1002，指纹滑动范围至少包含左右相邻的两列指纹识别区域(1001、1002、1003、1004)的部分指纹识别电极，因此其最终图像如图6d所示，其中成像1和成像2分别对应第一列和第二列指纹识别区域读取的图像。具体的，如图6c所示，手指滑动的起始区域(虚线框部分)以L1、L2、L3为分界线被指纹识别区域1001和1002的指纹识别电极分为四部分：第一部分601、第二部分602、第三部分603、第四部分604，当手指在向下滑动时，第一部分601的指纹信息被指纹识别区域1003的指纹识别电极检测得到并传给指纹识别区域1003对应的IC，第二部分602的指纹信息被指纹识别区域1001的指纹识别电极检测得到并传给指纹识别区域1001对应的IC，在上述对应附图4c的实施例中提到过，1001和1003位于同一列，因此这两个区域连接的是同一个IC，因此1001和1003检测到图像组合后得到的图像对应的是图6d中的成像1(即第二部分602和第一部分601 的指纹图像组合)，第三部分603的指纹信息被指纹识别区域1004的指纹识别电极检测得到并传给指纹识别区域1004对应的IC，第四部分604的指纹信息被指纹识别区域1002的指纹识别电极检测得到并传给指纹识别区域1002对应的IC，此处的1002和1004位于同一列并且连接的是由同一个IC控制，因此图6d中的成像2的指纹图像对应的是指纹识别区域1002和1004检测到的指纹图像的组合(即图6c中第四部分604和第三部分603的指纹图像的组合)，图6c中的成像1和成像2通过图像处理后得到如图6d所示的最终图像。
第三种情况，如图6e所示，其中箭头表示手指滑动方向，手指滑动的初始区域(如图6e中虚线框所示)覆盖部分指纹识别区域1001，指纹按压滑动范围至少包含第一列中两个指纹识别区域1001和1003的部分指纹识别电极，因此其最终图像如图6f所示，由第一列指纹识别区域的成像经图像处理合成。具体的，如图6e所示，手指滑动的初始区域(虚线框部分)以L为分界线被指纹识别区域1001的指纹识别电极分为两部分(左下部分701和右上部分702)，手指在向下滑动时，左下部分701的指纹信息被指纹识别区域1003的指纹识别电极检测得到并传给指纹识别区域1003对应的IC，右上部分702的指纹信息被指纹识别区域1001的指纹识别电极检测得到并传给指纹识别区域1001对应的IC，在上述对应附图4c的实施例中提到过，指纹识别区域1001和1003处在同一列，连接的是同一IC，因此两者检测到图像组合后得到的图像对应的是6f中的成像1(包含左下部分701和右上部分702的指纹图像)，手指向下滑动时没有覆盖第二列区域(包含指纹识别区域1002和1004)，因此第二列的对应的IC并没有检测到任何图像，所以得到如图6f所示的最终图像中只包含成像1的指纹图像。
同理，手指向上滑动和上述向下滑动时情况原理类似，在此不作赘述。
实例三，手指斜向滑动：
当手指斜向下滑动时，该滑动方向与指纹识别电极110的排列方向即指纹识别区域100的对角线方向不一致，手指如图7a所示，手指滑动的起点覆盖部分指纹识别区域1001和1003，指纹滑动范围至少包含左右相邻的两列指纹识别区域(1001、1002、1003、1004)的部分指纹识别电极，因此其最终图像如图7b所示，其中成像1和成像2分别对应第一列和第二列指纹识别区域读取的图像。具体的，如图7a所示，手指滑动的起始区域(虚线框部分) 以L1和L2为分界线被指纹识别区域1001和1003的指纹识别电极分为三部分：第一部分801、第二部分802和第三部分803，手指在斜向滑动时，第一部分801的指纹信息被指纹识别区域1001的指纹识别电极检测得到并传给指纹识别区域1001对应的IC，第二部分802的指纹信息被指纹识别区域1004的指纹识别电极检测得到并传给指纹识别区域1004对应的IC，第三部分803的指纹信息被指纹识别区域1003的指纹识别电极检测得到并传给指纹识别区域1003对应的IC，如附图4c所示，指纹识别区域1001和1003处在同一列，连接的是同一IC，因此两者检测到图像组合后得到的图像对应的是7b中的成像1(包括第一部分801和第三部分803的指纹图像)，指纹识别区域1004与指纹识别区域1001和1003不同列，因此对应连接的IC也不同，因此指纹识别区域1004对应IC得到的图像对应图7b中的成像2(对应第二部分802的指纹图像)，图像1和图像2经过通过图像处理后得到如图7b所示的最终图像。
通过上述三个实例可以看出，手指沿着多个方向滑动时均可以根据指纹按压范围包含的属于同一列或相邻列的指纹识别区域100中的指纹识别电极110的成像合成完整的指纹信息，从而识别出指纹，使滑动式指纹识别器件大致不受手指滑动方向的限制，提高了滑动式指纹识别器件的应用范围。
基于同一发明构思，本发明实施例还提供了一种包含上述指纹识别器件的触控装置，由于该触控装置解决问题的原理与前述一种指纹识别器件相似，因此该触控装置的实施可以参见指纹识别器件的实施，重复之处不再赘述。该触控装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有触控功能的产品或部件。
具体地，本发明实施例提供的一种触控装置，如图8所示，包括外围区域a和具有多个呈阵列排布的触控电极的显示区域b；本发明实施例提供的上述指纹识别器件位于由触控电极组成的显示区域b内。
本发明实施例提供的上述触控装置，可以是内嵌式触摸屏也可以是外挂式触摸屏等其他类型的触摸屏，在此不做限定。
本发明实施例提供的上述触控装置，可以在实现触控显示的同时实现对手指多个方向滑动的指纹检测。
在具体实施时，本发明实施例提供的上述指纹识别器件可以位于触控装置内部，也可以位于触控装置的出光侧表面上。
具体地，在本发明实施例中，为了防止指纹识别电极裸露在外部被划伤，导致触控失灵，可在指纹识别电极上设置一保护层。如图9所示，在本发明实施例提供的上述指纹识别器件位于触控装置的出光侧表面上时，为了在使用时保护指纹识别电极不被划伤，在触控显示装置的表面除了传统的防反射(图9中未示出)等膜层之外，还需要在指纹识别器件之上设置保护层，例如可以是SiN或SiO等透明保护层，其厚度一般不超过20μm为佳。
本发明实施例提供的一种指纹识别器件及触控装置，包括多个呈矩阵分布的矩形的指纹识别区域，各指纹识别区域包括沿着指纹识别区域的对角线方向排列的多个相互独立的指纹识别电极，各指纹识别区域中的指纹识别电极的排列方向相同。由于在各指纹识别区域中各指纹识别电极沿着相同的对角线方向排列，因此当手指在指纹识别器件上沿着多个方向滑动时，属于同一或相邻的指纹识别区域中的指纹识别电极可以检测到完整的指纹信息，从而识别出指纹，使滑动式指纹识别器件不受手指滑动方向的限制，提高了滑动式指纹识别器件的应用范围，并且在手指滑动时不需要进行大距离的滑动就能检测到完整的指纹，提升了指纹滑动识别的灵敏性。相对于按压式指纹识别而言，根据本发明实施例的滑动式指纹识别器件使用较少的指纹识别电极就能检测到完整的指纹图像，这样有利于成本的降低。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
本申请要求2015年01月19日提交的申请号为“CN 201510025632.8”且发明名称为“一种指纹识别器件及触控装置”的中国优先申请的优先权，通过引用将其全部内容并入于此。

Claims (10)

  1. 一种指纹识别器件，其特征在于，包括：多个呈矩阵分布的矩形的指纹识别区域；
    各所述指纹识别区域包括沿着所述指纹识别区域的对角线方向排列的多个相互独立的指纹识别电极；
    其中，各所述指纹识别区域中的指纹识别电极的排列方向相同。
  2. 如权利要求1所述的指纹识别器件，其特征在于，至少一行的各所述指纹识别区域由同一数据处理芯片控制；或，
    至少一列的各所述指纹识别区域由同一数据处理芯片控制。
  3. 如权利要求2所述的指纹识别器件，其特征在于，各所述指纹识别区域中的指纹识别电极的个数相同。
  4. 如权利要求3所述的指纹识别器件，其特征在于，在至少一行的各所述指纹识别区域由同一数据处理芯片控制时，行方向相邻的各所述指纹识别区域中位于同一位置的指纹识别电极相互电连接；
    在至少一列的各所述指纹识别区域由同一数据处理芯片控制时，列方向相邻的各所述指纹识别区域中位于同一位置的指纹识别电极相互电连接。
  5. 如权利要求3所述的指纹识别器件，其特征在于，每两个相邻的所述指纹识别区域中位于同一位置的指纹识别电极之间的距离为5mm-20mm。
  6. 如权利要求1-5任一项所述的指纹识别器件，其特征在于，在阵列排列的各所述指纹识别区域中，对角线相邻的各所述指纹识别区域中的各指纹识别电极排列在同一直线上。
  7. 如权利要求1-5任一项所述的指纹识别器件，其特征在于，各所述指纹识别区域包括的各指纹识别电极沿着与各所述指纹识别区域的边框呈45度角的方向排列。
  8. 如权利要求1-5任一项所述的指纹识别器件，其特征在于，在同一指纹识别区域内相邻的指纹识别电极之间的中心距离为42.3微米到84.7微米。
  9. 一种触控装置，其特征在于，包括如权利要求1-8任一项所述的指纹识别器件。
  10. 如权利要求9所述的触控装置，其特征在于，所述指纹识别器件之上还具有保护层。
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JP2018506812A (ja) 2018-03-08
JP6501911B2 (ja) 2019-04-17
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