CN106934379A - A kind of fingerprint identification device and fingerprint identification method, touch control display apparatus - Google Patents
A kind of fingerprint identification device and fingerprint identification method, touch control display apparatus Download PDFInfo
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- 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
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
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Abstract
本发明公开了一种指纹识别装置及指纹识别方法、触控显示装置，用以简化指纹识别器件的结构，提高指纹识别的准确度，降低指纹识别器件的成本。指纹识别装置包括具有触控功能的有机电致发光显示面板，以及至少一线阵光电传感器，有机电致发光显示面板包括发光区和非发光区；线阵光电传感器位于有机电致发光显示面板下方，每一线阵光电传感器的位置与一发光区的位置对应；每一线阵光电传感器与有机电致发光显示面板的发光层之间设置有成像小孔，成像小孔用于将位于该成像小孔上方，并与有机电致发光显示面板接触的指纹成像到线阵光电传感器上。
The invention discloses a fingerprint identification device, a fingerprint identification method, and a touch display device, which are used for simplifying the structure of a fingerprint identification device, improving the accuracy of fingerprint identification, and reducing the cost of the fingerprint identification device. The fingerprint recognition device includes an organic electroluminescent display panel with a touch function, and at least one line of photoelectric sensors, the organic electroluminescent display panel includes a light-emitting area and a non-luminous area; the line-array photoelectric sensor is located below the organic electroluminescent display panel, The position of each line-array photoelectric sensor corresponds to the position of a light-emitting area; an imaging hole is arranged between each line-array photoelectric sensor and the light-emitting layer of the organic electroluminescence display panel, and the imaging hole is used to place the light above the imaging hole , and the fingerprint in contact with the organic electroluminescent display panel is imaged on the linear array photoelectric sensor.
Description
技术领域technical field
本发明涉及指纹识别技术领域，尤其涉及一种指纹识别装置及指纹识别方法、触控显示装置。The invention relates to the technical field of fingerprint identification, in particular to a fingerprint identification device, a fingerprint identification method, and a touch display device.
背景技术Background technique
随着电子科技技术的不断发展，指纹识别被广泛地应用于手机、个人数字助理、电脑等电子设备的显示屏中。With the continuous development of electronic technology, fingerprint recognition is widely used in the display screens of electronic devices such as mobile phones, personal digital assistants, and computers.
现有技术将指纹识别装置嵌入显示区内是显示领域研究的课题之一，嵌入至显示区内可以节省手机或移动装置的正面面积，提高用户使用体验。现有技术有将面阵传感器放置在显示屏下方，利用显示屏设计的小孔成像实现显示区的成像，根据成像识别出指纹。但现有这种采用面阵传感器进行指纹识别的指纹识别器件的结构较复杂，成本较高。In the prior art, embedding a fingerprint identification device into a display area is one of the research topics in the display field. Embedding it in the display area can save the front area of a mobile phone or mobile device and improve user experience. In the prior art, the area array sensor is placed under the display screen, and the imaging of the display area is realized by using the small hole imaging designed on the display screen, and the fingerprint is identified according to the imaging. However, the existing fingerprint identification device using an area array sensor for fingerprint identification has a relatively complicated structure and high cost.
发明内容Contents of the invention
有鉴于此，本发明实施例提供了一种指纹识别装置及指纹识别方法、触控显示装置，用以简化指纹识别器件的结构，提高指纹识别的准确度，降低指纹识别器件的成本。In view of this, embodiments of the present invention provide a fingerprint identification device, a fingerprint identification method, and a touch display device, which are used to simplify the structure of the fingerprint identification device, improve the accuracy of fingerprint identification, and reduce the cost of the fingerprint identification device.
本发明实施例提供的一种指纹识别装置，包括具有触控功能的有机电致发光显示面板，以及至少一线阵光电传感器，所述有机电致发光显示面板包括发光区和非发光区；A fingerprint identification device provided by an embodiment of the present invention includes an organic electroluminescent display panel with a touch function, and at least one line of photoelectric sensors, and the organic electroluminescent display panel includes a light-emitting area and a non-luminous area;
所述线阵光电传感器位于所述有机电致发光显示面板下方，每一所述线阵光电传感器的位置与一所述发光区的位置对应；The line array photoelectric sensors are located below the organic electroluminescence display panel, and the position of each of the line array photoelectric sensors corresponds to the position of one of the light emitting regions;
每一所述线阵光电传感器与所述有机电致发光显示面板的发光层之间设置有成像小孔，所述成像小孔用于将位于该成像小孔上方，并与所述有机电致发光显示面板接触的指纹成像到所述线阵光电传感器上。An imaging aperture is arranged between each of the linear array photosensors and the light-emitting layer of the organic electroluminescence display panel, and the imaging aperture is used to place above the imaging aperture and communicate with the organic electroluminescent display panel. Fingerprints touched by the luminescent display panel are imaged onto the linear array photoelectric sensor.
由本发明实施例提供的指纹识别装置，由于该指纹识别装置包括具有触控功能的有机电致发光显示面板，以及至少一线阵光电传感器，本发明实施例中的光电传感器采用线阵的方式排列，相对于现有技术采用面阵排列的光电传感器，本发明实施例的指纹识别装置结构简单、成本低；另外，本发明实施例中的指纹识别装置采用具有触控功能的有机电致发光显示面板进行发光照明以及定位，能够提高指纹识别的准确度。The fingerprint identification device provided by the embodiment of the present invention, since the fingerprint identification device includes an organic electroluminescent display panel with a touch function, and at least a linear array of photoelectric sensors, the photoelectric sensors in the embodiment of the present invention are arranged in a linear array, Compared with the photoelectric sensors arranged in an area array in the prior art, the fingerprint recognition device in the embodiment of the present invention has a simple structure and low cost; in addition, the fingerprint recognition device in the embodiment of the present invention adopts an organic electroluminescent display panel with a touch function Luminous lighting and positioning can improve the accuracy of fingerprint recognition.
较佳地，所述线阵光电传感器在所述有机电致发光显示面板上的正投影区域位于所述有机电致发光显示面板的边缘区域。Preferably, the orthographic projection area of the line array photosensor on the organic electroluminescent display panel is located at an edge area of the organic electroluminescent display panel.
较佳地，所述具有触控功能的有机电致发光显示面板为自电容有机电致发光显示面板，或为互电容有机电致发光显示面板。Preferably, the organic electroluminescent display panel with touch function is a self-capacitance organic electroluminescent display panel, or a mutual capacitance organic electroluminescent display panel.
较佳地，所述成像小孔在所述线阵光电传感器上的正投影区域沿所述线阵光电传感器的延伸方向排布，相邻两所述成像小孔之间的距离为300微米到1250微米。Preferably, the orthographic projection area of the imaging pinholes on the linear array photoelectric sensor is arranged along the extension direction of the linear array photoelectric sensor, and the distance between two adjacent imaging pinholes is 300 microns to 1250 microns.
较佳地，所述成像小孔的形状为圆形或方形。Preferably, the shape of the imaging aperture is circular or square.
较佳地，指纹识别装置还包括设置于所述线阵光电传感器背向所述有机电致发光显示面板一侧的功能膜层，所述功能膜层用于遮光或散热。Preferably, the fingerprint identification device further includes a functional film layer disposed on the side of the linear array photoelectric sensor facing away from the organic electroluminescent display panel, and the functional film layer is used for light shielding or heat dissipation.
较佳地，指纹识别装置还包括设置于所述有机电致发光显示面板上，用于保护所述有机电致发光显示面板的保护层。Preferably, the fingerprint recognition device further includes a protective layer disposed on the organic electroluminescent display panel for protecting the organic electroluminescent display panel.
本发明实施例还提供了一种触控显示装置，该触控显示装置包括上述的指纹识别装置。An embodiment of the present invention also provides a touch display device, which includes the above-mentioned fingerprint recognition device.
本发明实施例还提供了一种上述指纹识别装置的指纹识别方法，包括：An embodiment of the present invention also provides a fingerprint identification method of the above-mentioned fingerprint identification device, including:
接收具有触控功能的有机电致发光显示面板反馈的指纹位置信息和指纹移动速度信息；Receive fingerprint position information and fingerprint moving speed information fed back by an organic electroluminescent display panel with a touch function;
接收线阵光电传感器发送的成像到该线阵光电传感器上的指纹的图像信息；Receiving the image information of the fingerprint imaged on the line array photoelectric sensor sent by the line array photoelectric sensor;
根据所述指纹位置信息和所述指纹移动速度信息，将接收到的所述指纹的图像信息进行拼接组合，完成指纹的识别。According to the fingerprint position information and the fingerprint moving speed information, the received image information of the fingerprint is spliced and combined to complete the identification of the fingerprint.
较佳地，所述接收具有触控功能的有机电致发光显示面板反馈的指纹位置信息，具体包括：Preferably, the receiving the fingerprint position information fed back by the organic electroluminescent display panel with touch function specifically includes:
接收具有触控功能的有机电致发光显示面板反馈的指纹位置信息，并控制仅与指纹位置对应位置处的所述有机电致发光显示面板发光。The fingerprint position information fed back by the organic electroluminescent display panel with touch function is received, and only the organic electroluminescent display panel at the position corresponding to the fingerprint position is controlled to emit light.
附图说明Description of drawings
图1为本发明实施例提供的一种指纹识别装置的截面结构示意图；FIG. 1 is a schematic cross-sectional structure diagram of a fingerprint identification device provided by an embodiment of the present invention;
图2为本发明实施例提供的一种指纹识别装置的俯视结构示意图；Fig. 2 is a top structural schematic diagram of a fingerprint identification device provided by an embodiment of the present invention;
图3为本发明实施例提供的指纹识别装置中线阵光电传感器与成像小孔的对应关系结构示意图；Fig. 3 is a structural schematic diagram of the corresponding relationship between the linear array photoelectric sensor and the imaging pinhole in the fingerprint identification device provided by the embodiment of the present invention;
图4为本发明实施例提供的另一指纹识别装置的截面结构示意图；FIG. 4 is a schematic cross-sectional structure diagram of another fingerprint identification device provided by an embodiment of the present invention;
图5为本发明实施例提供的又一指纹识别装置的截面结构示意图；Fig. 5 is a schematic cross-sectional structure diagram of another fingerprint identification device provided by an embodiment of the present invention;
图6为本发明实施例提供的一种指纹识别方法流程图；FIG. 6 is a flowchart of a fingerprint identification method provided by an embodiment of the present invention;
图7为本发明实施例提供的一种指纹识别装置的指纹识别原理结构示意图；Fig. 7 is a schematic structural diagram of a fingerprint recognition principle of a fingerprint recognition device provided by an embodiment of the present invention;
图8a-图8c分别为本发明实施例提供的指纹识别装置的发光区配合指纹识别的不同阶段的示意图。8a-8c are respectively schematic diagrams of different stages of the cooperation of the light-emitting area of the fingerprint identification device provided by the embodiment of the present invention in fingerprint identification.
具体实施方式detailed description
本发明实施例提供了一种指纹识别装置及指纹识别方法、触控显示装置，用以简化指纹识别器件的结构，提高指纹识别的准确度，降低指纹识别器件的成本。Embodiments of the present invention provide a fingerprint identification device, a fingerprint identification method, and a touch display device, which are used to simplify the structure of the fingerprint identification device, improve the accuracy of fingerprint identification, and reduce the cost of the fingerprint identification device.
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
下面结合附图详细介绍本发明具体实施例提供的指纹识别装置。The fingerprint identification device provided by the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
附图中各部件厚度和区域大小、形状不反应各部件的真实比例，目的只是示意说明本发明内容。The thickness, area size, and shape of each component in the drawings do not reflect the real proportion of each component, and the purpose is only to schematically illustrate the content of the present invention.
如图1所示，本发明具体实施例提供了一种指纹识别装置，包括具有触控功能的有机电致发光显示面板11，以及至少一线阵光电传感器12，有机电致发光显示面板11包括发光区111和非发光区112；As shown in FIG. 1 , a specific embodiment of the present invention provides a fingerprint identification device, including an organic electroluminescent display panel 11 with a touch function, and at least a line of photoelectric sensors 12. The organic electroluminescent display panel 11 includes Area 111 and non-luminous area 112;
线阵光电传感器12位于有机电致发光显示面板11下方，每一线阵光电传感器12的位置与一发光区111的位置对应；The line array photoelectric sensors 12 are located below the organic electroluminescence display panel 11, and the position of each line array photoelectric sensor 12 corresponds to the position of a light emitting area 111;
每一线阵光电传感器12与有机电致发光显示面板11的发光层113之间设置有成像小孔13，成像小孔13用于将位于该成像小孔13上方，并与有机电致发光显示面板11接触的指纹成像到线阵光电传感器12上。An imaging aperture 13 is arranged between each line array photoelectric sensor 12 and the light-emitting layer 113 of the organic electroluminescent display panel 11, and the imaging aperture 13 is used to place the image above the imaging aperture 13 and connect with the organic electroluminescent display panel. 11 The contacted fingerprint is imaged on the line array photoelectric sensor 12 .
本发明具体实施例使用线阵光电传感器，利用具有触控功能的有机电致发光显示面板进行发光照明以及定位，实现光电式指纹传感及指纹识别，本发明具体实施例中的光电传感器采用线阵的方式排列，相对于现有技术采用面阵排列的光电传感器，本发明具体实施例的指纹识别装置结构简单、成本低；另外，本发明具体实施例中的指纹识别装置采用具有触控功能的有机电致发光显示面板进行发光照明以及定位，能够提高指纹识别的准确度。The specific embodiment of the present invention uses a linear array photoelectric sensor, and uses an organic electroluminescent display panel with a touch function for lighting and positioning to realize photoelectric fingerprint sensing and fingerprint recognition. The photoelectric sensor in the specific embodiment of the present invention uses a wire Arranged in an array, compared with the photoelectric sensors arranged in an area array in the prior art, the fingerprint recognition device in the specific embodiment of the present invention has a simple structure and low cost; in addition, the fingerprint recognition device in the specific embodiment of the present invention adopts a The organic electroluminescent display panel is used for luminous illumination and positioning, which can improve the accuracy of fingerprint identification.
具体地，本发明具体实施例中的线阵光电传感器12在有机电致发光显示面板11上的正投影区域位于有机电致发光显示面板11的边缘区域。具体实施时，如图2所示，线阵光电传感器12在有机电致发光显示面板11上的正投影区域位于有机电致发光显示面板11的下方边缘区域，这样，在实际应用中，能够更方便用户的操作。Specifically, the orthographic projection area of the line array photoelectric sensor 12 on the organic electroluminescent display panel 11 in the specific embodiment of the present invention is located at the edge area of the organic electroluminescent display panel 11 . During specific implementation, as shown in FIG. 2, the orthographic projection area of the line array photoelectric sensor 12 on the organic electroluminescent display panel 11 is located at the lower edge area of the organic electroluminescent display panel 11. In this way, in practical applications, it can be more User-friendly operation.
实际设计时，为了防止成像误差，本发明具体实施例需要设置两个或两个以上的线阵光电传感器，设置两个或两个以上的线阵光电传感器能够很好的改善因用户手指移动速度或其它环境影响识别率差的问题，从而确保数据的准确度比单次识别更高、更可靠。In actual design, in order to prevent imaging errors, the specific embodiments of the present invention need to set two or more linear array photoelectric sensors, and setting two or more linear array photoelectric sensors can well improve the speed caused by the movement of the user's fingers. Or other environmental problems that affect the poor recognition rate, so as to ensure that the accuracy of the data is higher and more reliable than a single recognition.
本发明具体实施例中的线阵光电传感器的灵敏度高、分辨率高、采集速度快，具体实施时，本发明具体实施例中的线阵光电传感器的分辨率可以为N*M，其中N为大于等于1的正数，M为大于等于100的正数；具体实施时，如图2所示，本发明具体实施例以设置四个线阵光电传感器为例进行说明。The linear array photoelectric sensor in the specific embodiment of the present invention has high sensitivity, high resolution, and fast acquisition speed. During specific implementation, the resolution of the linear array photoelectric sensor in the specific embodiment of the present invention can be N*M, where N is A positive number greater than or equal to 1, M is a positive number greater than or equal to 100; during specific implementation, as shown in Figure 2, the specific embodiment of the present invention is described by setting four linear array photoelectric sensors as an example.
具体地，如图3所示，本发明具体实施例中的成像小孔13在线阵光电传感器12上的正投影区域沿线阵光电传感器12的延伸方向排布，相邻两成像小孔13之间的距离d为300微米(μm)到1250μm，本发明具体实施例中的成像小孔13的这种设置方式能够确保成像小孔13在沿线阵光电传感器12的延伸方向所成的像的完备性。具体实施时，本发明具体实施例中的成像小孔13的中心点位于同一条直线上，以便进一步保证所成的像的完备性。Specifically, as shown in FIG. 3 , the orthographic projection areas of the imaging apertures 13 in the specific embodiment of the present invention on the linear array photoelectric sensor 12 are arranged along the extension direction of the linear array photoelectric sensor 12 , between two adjacent imaging apertures 13 The distance d is from 300 micrometers (μm) to 1250 μm. The arrangement of the imaging pinhole 13 in the specific embodiment of the present invention can ensure the completeness of the image formed by the imaging pinhole 13 along the extending direction of the linear array photoelectric sensor 12. . During specific implementation, the central points of the imaging pinholes 13 in the specific embodiment of the present invention are located on the same straight line, so as to further ensure the integrity of the formed image.
具体地，如图3所示，本发明具体实施例中的成像小孔13的形状为圆形或方形，圆形或方形的成像小孔在实际设计时更加方便、简单。当然，在实际设计时，还可以将成像小孔13的形状设置为其它形状，如菱形，本发明具体实施例并不对成像小孔13的具体形状做限定。具体实施时，本发明具体实施例中的成像小孔13的形状为圆形时，成像小孔13的直径r为3μm到6μm，成像小孔13的这种大小设计能够更好的将位于发光区上方，并与有机电致发光显示面板接触的指纹成像到线阵光电传感器上。Specifically, as shown in FIG. 3 , the shape of the imaging aperture 13 in the specific embodiment of the present invention is circular or square, and the circular or square imaging aperture is more convenient and simple in actual design. Of course, in actual design, the shape of the imaging hole 13 can also be set to other shapes, such as rhombus, and the specific embodiment of the present invention does not limit the specific shape of the imaging hole 13 . During specific implementation, when the shape of the imaging pinhole 13 in a specific embodiment of the present invention is circular, the diameter r of the imaging pinhole 13 is 3 μm to 6 μm, and the size design of the imaging pinhole 13 can better place the The fingerprint above the area and in contact with the organic electroluminescent display panel is imaged on the linear array photoelectric sensor.
具体实施时，本发明具体实施例中的成像小孔13可以采用构图工艺制作形成，构图工艺包括光刻胶的涂覆、曝光、显影、刻蚀，以及去除光刻胶的部分或全部过程。例如：本发明具体实施例可以在制作有机电致发光显示面板的背板上沉积一层不透光膜层，然后采用曝光、显影和刻蚀工艺将需要形成成像小孔13位置处的不透光膜层刻蚀去掉，形成成像小孔13。During specific implementation, the imaging pinhole 13 in the specific embodiment of the present invention can be formed by a patterning process, and the patterning process includes photoresist coating, exposure, development, etching, and part or all of photoresist removal processes. For example: in the specific embodiment of the present invention, a layer of opaque film layer can be deposited on the back plate of the organic electroluminescence display panel, and then the opaque layer at the position of the imaging hole 13 will be formed by using exposure, development and etching processes. The optical film layer is etched away to form imaging pinholes 13 .
具体地，本发明具体实施例中的具有触控功能的有机电致发光显示面板为自电容有机电致发光显示面板，或为互电容有机电致发光显示面板。自电容有机电致发光显示面板的触控电极的具体设置方式与现有技术相同，如：可以采用公共电极复用为触控电极，这里不再赘述；互电容有机电致发光显示面板的触控电极的具体设置方式与现有技术相同，如：可以在制作有机电致发光显示面板的背板上制作互相交叉绝缘的驱动电极与感应电极，这里不再赘述。Specifically, the organic electroluminescent display panel with touch function in the specific embodiment of the present invention is a self-capacitance organic electroluminescent display panel, or a mutual capacitance organic electroluminescent display panel. The specific setting method of the touch electrodes of the self-capacitance organic electroluminescent display panel is the same as that of the prior art. The specific setting method of the control electrodes is the same as that of the prior art, for example, the driving electrodes and sensing electrodes cross-insulated from each other can be fabricated on the backplane of the organic electroluminescent display panel, which will not be repeated here.
实际设计时，本发明具体实施例的具有触控功能的有机电致发光显示面板可以采用外挂式的设计方式，也可以采用外嵌式(on cell)的设计方式，还可以采用内嵌式(incell)的设计方式，本发明具体实施例中的外挂式、on cell和in cell的具体设计方式与现有技术类似，这里不再赘述。In actual design, the organic electroluminescence display panel with touch function according to the specific embodiment of the present invention may adopt an external design method, may also adopt an on cell design method, and may also adopt an embedded (on cell) design method. incell), the specific design methods of the plug-in type, on cell and in cell in specific embodiments of the present invention are similar to the prior art, and will not be repeated here.
进一步地，如图4所示，本发明具体实施例中的指纹识别装置还包括设置于线阵光电传感器12背向有机电致发光显示面板11一侧的功能膜层41，功能膜层41用于遮光或散热，功能膜层41的设置能够更好的避免外界环境光的影响，并且能够将指纹识别装置产生的热量及时的散出，能够延长指纹识别装置的使用寿命。Further, as shown in FIG. 4 , the fingerprint identification device in the specific embodiment of the present invention also includes a functional film layer 41 arranged on the side of the linear array photoelectric sensor 12 facing away from the organic electroluminescent display panel 11. The functional film layer 41 is used for For shading or heat dissipation, the setting of the functional film layer 41 can better avoid the influence of external ambient light, and can dissipate the heat generated by the fingerprint identification device in time, which can prolong the service life of the fingerprint identification device.
进一步地，如图5所示，本发明具体实施例中的指纹识别装置还包括设置于有机电致发光显示面板11上，用于保护有机电致发光显示面板11的保护层51，具体实施时，保护层51为玻璃盖板或为其它材料的膜层，保护层51的设置能够更好的避免有机电致发光显示面板11被划伤。Further, as shown in FIG. 5 , the fingerprint identification device in the specific embodiment of the present invention also includes a protective layer 51 arranged on the organic electroluminescent display panel 11 for protecting the organic electroluminescent display panel 11 . The protective layer 51 is a glass cover plate or a film layer of other materials, and the setting of the protective layer 51 can better prevent the organic electroluminescence display panel 11 from being scratched.
基于同一发明构思，本发明具体实施例还提供了一种触控显示装置，该触控显示装置包括本发明具体实施例提供的上述指纹识别装置，该触控显示装置可以为：手机、平板电脑、液晶电视、有机发光二极管(Organic Light Emitting Diode，OLED)电视、笔记本电脑、数码相框、导航仪等任何具有触控显示功能的产品或部件。对于该触控显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不予赘述。Based on the same inventive concept, a specific embodiment of the present invention also provides a touch display device, the touch display device includes the above-mentioned fingerprint identification device provided by the specific embodiment of the present invention, and the touch display device can be: a mobile phone, a tablet computer , LCD TV, organic light emitting diode (Organic Light Emitting Diode, OLED) TV, notebook computer, digital photo frame, navigator and any other product or component with touch display function. The other essential components of the touch display device should be understood by those of ordinary skill in the art, and will not be repeated here.
基于同一发明构思，本发明具体实施例还提供了一种上述指纹识别装置的指纹识别方法，如图6所示，该方法包括：Based on the same inventive concept, a specific embodiment of the present invention also provides a fingerprint recognition method of the above-mentioned fingerprint recognition device, as shown in FIG. 6 , the method includes:
S601、接收具有触控功能的有机电致发光显示面板反馈的指纹位置信息和指纹移动速度信息；S601. Receive fingerprint position information and fingerprint moving speed information fed back by an organic electroluminescent display panel with a touch function;
S602、接收线阵光电传感器发送的成像到该线阵光电传感器上的指纹的图像信息；S602. Receive the image information of the fingerprint sent by the line array photoelectric sensor and imaged on the line array photoelectric sensor;
S603、根据所述指纹位置信息和所述指纹移动速度信息，将接收到的所述指纹的图像信息进行拼接组合，完成指纹的识别。S603. According to the fingerprint position information and the fingerprint moving speed information, splicing and combining the received image information of the fingerprint to complete fingerprint identification.
下面结合附图7具体介绍一下本发明具体实施例的指纹识别方法。The fingerprint identification method of the specific embodiment of the present invention will be specifically introduced below in conjunction with FIG. 7 .
本发明具体实施例中的具有触控功能的有机电致发光显示面板以on cell设计方式为例，如图7所示，具有触控功能的有机电致发光显示面板包括触摸面板71和显示面板72，图中仅示出了位于手指下方的成像小孔13和发光层113，图中的箭头方向表示用户手指的移动方向。The organic electroluminescent display panel with touch function in the specific embodiment of the present invention takes the on cell design as an example. As shown in FIG. 7, the organic electroluminescent display panel with touch function includes a touch panel 71 and a display panel 72. The figure only shows the imaging pinhole 13 and the luminescent layer 113 located under the finger, and the direction of the arrow in the figure indicates the moving direction of the user's finger.
当用户手指触控本发明具体实施例中的具有触控功能的有机电致发光显示面板，并按照如图所示的方向(即垂直线阵光电传感器的方向)移动时，具有触控功能的有机电致发光显示面板能够实时检测到用户手指的指纹位置信息，并能够检测到手指移动的速度，并将指纹位置信息以及指纹移动速度信息反馈给指纹识别装置的系统芯片，本发明具体实施例中的系统芯片可以为单片机、微处理器、嵌入式处理器及中央处理器，也可以为特定用于指纹识别的处理器，本发明具体实施例中具有触控功能的有机电致发光显示面板检测指纹位置信息以及指纹移动速度信息的具体方法与现有技术相同，这里不再赘述。When the user's finger touches the organic electroluminescent display panel with touch function in the specific embodiment of the present invention, and moves in the direction shown in the figure (that is, the direction perpendicular to the line array photoelectric sensor), the organic electroluminescent display panel with touch function The organic electroluminescence display panel can detect the fingerprint position information of the user's finger in real time, and can detect the moving speed of the finger, and feed back the fingerprint position information and the fingerprint moving speed information to the system chip of the fingerprint recognition device. The specific embodiment of the present invention The system chip in the system can be a single-chip microcomputer, a microprocessor, an embedded processor and a central processing unit, and can also be a processor specially used for fingerprint identification. The organic electroluminescent display panel with a touch function in a specific embodiment of the invention The specific method of detecting the fingerprint position information and the fingerprint moving speed information is the same as that of the prior art, and will not be repeated here.
当用户手指移动到发光区上方(即发光层113的上方)，发光层113发出的光照射到手指上，照射到手指上的光线经过手指反射后进入具有触控功能的有机电致发光显示面板11，该光线经过成像小孔13照射到线阵光电传感器12上，线阵光电传感器12根据接收到的光线进行分析计算，得到指纹的图像信息，线阵光电传感器12将得到的指纹的图像信息发送给系统芯片，系统芯片根据接收到的指纹位置信息和指纹移动速度信息，将接收到的指纹的图像信息进行拼接组合构成手指指纹，完成指纹的识别。When the user's finger moves above the light-emitting area (that is, above the light-emitting layer 113), the light emitted by the light-emitting layer 113 irradiates the finger, and the light irradiated on the finger enters the organic electroluminescent display panel with touch function after being reflected by the finger. 11. The light is irradiated onto the linear array photoelectric sensor 12 through the imaging aperture 13, and the linear array photoelectric sensor 12 performs analysis and calculation according to the received light to obtain the image information of the fingerprint, and the linear array photoelectric sensor 12 will obtain the fingerprint image information Send it to the system chip, and the system chip will splice and combine the received fingerprint image information to form a finger fingerprint according to the received fingerprint position information and fingerprint moving speed information, and complete the fingerprint identification.
本发明具体实施例中设置有四个线阵光电传感器12，针对每一个线阵光电传感器12，系统芯片均能拼接组合成一手指指纹，为了得到更精确的手指指纹，本发明具体实施例中的系统芯片将每一个手指指纹进行数据比对及校正，将手指指纹数据进行重塑，得到更精确的手指指纹。这样，本发明具体实施例设置多个线阵光电传感器能够很好的改善因用户手指移动速度或其它环境影响识别率差的问题，从而确保数据的准确度比单次识别更高、更可靠。In the specific embodiment of the present invention, four linear array photoelectric sensors 12 are arranged. For each linear array photoelectric sensor 12, the system chip can be spliced and combined into a finger fingerprint. In order to obtain a more accurate finger fingerprint, the The system chip compares and corrects the data of each fingerprint, and remodels the fingerprint data to obtain a more accurate fingerprint. In this way, setting multiple linear array photoelectric sensors in the specific embodiment of the present invention can well improve the problem of poor recognition rate caused by the user's finger movement speed or other environmental influences, thereby ensuring that the accuracy of data is higher and more reliable than single recognition.
下面结合一个具体的实施例详细介绍一下本发明具体实施例中的指纹识别装置的指纹识别方法。The fingerprint identification method of the fingerprint identification device in the specific embodiment of the present invention will be introduced in detail below in conjunction with a specific embodiment.
具体地，本发明具体实施例中接收具有触控功能的有机电致发光显示面板反馈的指纹位置信息，具体包括：Specifically, in a specific embodiment of the present invention, receiving fingerprint position information fed back by an organic electroluminescent display panel with a touch function specifically includes:
系统芯片接收具有触控功能的有机电致发光显示面板反馈的指纹位置信息，并控制仅与指纹位置对应位置处的有机电致发光显示面板发光。The system chip receives the fingerprint position information fed back by the organic electroluminescent display panel with touch function, and controls only the organic electroluminescent display panel at the position corresponding to the fingerprint position to emit light.
本发明具体实施例中的指纹识别装置以手机为例，如图8a、图8b和图8c所示，图中81表示手机的显示屏，82表示手机的指纹识别区，83表示发光区及线阵光电传感器区，当指纹识别时，手指按压在第一线阵光电传感器上方的手机显示屏位置时，有机电致发光显示面板在与第一线阵光电传感器位置对应的位置处发光，如图8a所示；当手机屏幕指示移动时，如图8b所示，发光区扩大并有闪烁效果以提示向右移动，当移动到第二线阵光电传感器上方的手机显示屏位置时，若第一线阵光电传感器上方的手机显示屏位置仍有手指按压时，有机电致发光显示面板在与第一线阵光电传感器位置和第二线阵光电传感器位置对应的位置处可同时发光，如图8c所示。当然，在实际应用中，手机屏幕也可以在手机内部芯片的控制下指示由右至左移动。The fingerprint identification device in the specific embodiment of the present invention takes the mobile phone as an example, as shown in Figure 8a, Figure 8b and Figure 8c, among the figure 81 represents the display screen of the mobile phone, 82 represents the fingerprint recognition area of the mobile phone, 83 represents the light emitting area and the line Array photoelectric sensor area, when the fingerprint is recognized, when the finger presses the position of the mobile phone display above the first linear array photoelectric sensor, the organic electroluminescent display panel emits light at the position corresponding to the position of the first linear array photoelectric sensor, as shown in the figure As shown in 8a; when the mobile phone screen indicates movement, as shown in Figure 8b, the light-emitting area expands and has a flashing effect to prompt moving to the right. When moving to the position of the mobile phone display above the second line array photoelectric sensor, if the first line When the position of the mobile phone display above the array photoelectric sensor is still pressed by a finger, the organic electroluminescent display panel can emit light at the positions corresponding to the positions of the first linear array photoelectric sensor and the second linear array photoelectric sensor, as shown in Figure 8c . Of course, in practical applications, the mobile phone screen can also be instructed to move from right to left under the control of the internal chip of the mobile phone.
具体实施时，当本发明具体实施例中的手机处于待机状态，手机的指纹识别区82对应的触摸屏检测是否有手指触摸，当检测到有手指触摸时，手机内部芯片控制仅在手指触摸区域对应位置处的有机电致发光显示面板发光，该位置处对应的第一线阵光电传感器进行指纹成像；接着，手机屏幕在手机内部芯片的控制下指示由左至右移动，用户根据该指示将手指由左至右移动，手机内部芯片控制发光区跟随手指的移动而移动，当移动到第二线阵光电传感器对应位置时，第二线阵光电传感器进行指纹成像，依此类推，当所有的线阵光电传感器都完成指纹成像后，手机内部芯片将指纹的图像信息进行拼接组合构成手指指纹，并将构成的手指指纹与预先存储的手指指纹进行数据匹配，如果匹配不成功，则提示用户重试，如果匹配成功，则完成对手机的解锁或执行相应的软件操作。During specific implementation, when the mobile phone in the specific embodiment of the present invention is in the standby state, the touch screen corresponding to the fingerprint recognition area 82 of the mobile phone detects whether there is a finger touch, and when a finger touch is detected, the internal chip control of the mobile phone only corresponds to the finger touch area. The organic electroluminescent display panel at the position emits light, and the corresponding first linear array photoelectric sensor at the position performs fingerprint imaging; then, the mobile phone screen is instructed to move from left to right under the control of the internal chip of the mobile phone, and the user moves the finger according to the indication. Moving from left to right, the internal chip of the mobile phone controls the light-emitting area to move with the movement of the finger. When it moves to the corresponding position of the second line array photoelectric sensor, the second line array photoelectric sensor performs fingerprint imaging, and so on. When all the line array photoelectric sensors After the fingerprint imaging is completed by the sensors, the internal chip of the mobile phone splices and combines the image information of the fingerprint to form a fingerprint, and performs data matching between the formed fingerprint and the pre-stored fingerprint. If the matching is unsuccessful, the user is prompted to try again. If the matching is successful, the unlocking of the mobile phone is completed or the corresponding software operation is performed.
综上所述，本发明具体实施例提供一种指纹识别装置，包括具有触控功能的有机电致发光显示面板，以及至少一线阵光电传感器，有机电致发光显示面板包括发光区和非发光区；线阵光电传感器位于有机电致发光显示面板下方，每一线阵光电传感器的位置与一发光区的位置对应；每一线阵光电传感器与有机电致发光显示面板的发光层之间设置有成像小孔，成像小孔用于将位于该成像小孔上方，并与有机电致发光显示面板接触的指纹成像到线阵光电传感器上。本发明具体实施例中的光电传感器采用线阵的方式排列，相对于现有技术采用面阵排列的光电传感器，本发明具体实施例的指纹识别装置结构简单、成本低；另外，本发明具体实施例中的指纹识别装置采用具有触控功能的有机电致发光显示面板进行发光照明以及定位，能够提高指纹识别的准确度。In summary, a specific embodiment of the present invention provides a fingerprint identification device, including an organic electroluminescent display panel with a touch function, and at least one line of photoelectric sensors. The organic electroluminescent display panel includes a light-emitting area and a non-light-emitting area. The line array photoelectric sensor is located below the organic electroluminescence display panel, and the position of each line array photoelectric sensor corresponds to the position of a light emitting area; an imaging small is arranged between each line array photoelectric sensor and the light emitting layer of the organic electroluminescence display panel The hole, the imaging hole is used to image the fingerprint located above the imaging hole and in contact with the organic electroluminescent display panel onto the linear array photoelectric sensor. The photoelectric sensors in the specific embodiments of the present invention are arranged in a linear array. Compared with the photoelectric sensors arranged in an area array in the prior art, the fingerprint identification device in the specific embodiments of the present invention has a simple structure and low cost; in addition, the specific implementation of the present invention The fingerprint identification device in the example uses an organic electroluminescent display panel with a touch function for lighting and positioning, which can improve the accuracy of fingerprint identification.
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。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.
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| WO2020034726A1 (en) * | 2018-08-17 | 2020-02-20 | 京东方科技集团股份有限公司 | Array substrate, display panel, display device, fingerprint identification method, and touch method |
| CN109446937A (en) * | 2018-10-12 | 2019-03-08 | 贵州民族大学 | Shield lower finger-print recognising instrument |
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