Embedded optical fingerprint display device

Abstract

An embedded optical fingerprint display device comprises a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, wherein at least one pixel unit comprises: a display pixel unit having a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit disposed on the substrate; and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, and a specific color resist disposed on the optical fingerprint sensor, wherein the specific color resist is a blue resist or a green resist.

Description

Technical Field

[0001] The present invention relates to a fingerprint display device, in particular to an embedded optical fingerprint display device. Background Art

[0002] Figure 1 1 is a schematic diagram for explaining the integration of an optical fingerprint sensor and a liquid crystal display (LCD) panel. The optical fingerprint sensor 11 is disposed, for example, between a thin film transistor layer 12 and a filter substrate layer 13 of a liquid crystal display panel structure, so that light from a reflective layer 14 can be reflected to the optical fingerprint sensor 11 after encountering a finger on a glass substrate 15. Since the reflectivity of the peaks and valleys of the fingerprint is different, a fingerprint image can be reconstructed based on the sensing amount of the optical fingerprint sensor 11.

[0003] With the structure of the aforementioned optical fingerprint display device, when used in an outdoor environment, strong sunlight 25 may penetrate the finger and enter the optical fingerprint sensor 11, and the light penetrating the finger will cause the background signal to become larger, thus making the difference between the peak and valley signals of the fingerprint unclear, thereby affecting the judgment of the real fingerprint, making the false rejection rate (FRR) of fingerprint recognition larger. In addition, another problem of the aforementioned existing optical fingerprint display device is the poor resolution of fake fingerprints. If the pattern of the fake fingerprint is the same as that of the real fingerprint, the fingerprint shape detected by the optical fingerprint sensor 11 will also be similar, so the fake fingerprint will not be distinguished.

[0004] Therefore, there are still many deficiencies in the design of existing optical fingerprint display devices, and there is a need for improvement. Summary of the invention

[0005] The main purpose of the present invention is to provide an embedded optical fingerprint display device, which reduces the false rejection rate by adding a color resist of a specific color above the optical fingerprint sensor, and introduces a specific color resist arrangement to achieve an anti-counterfeiting function.

[0006] According to one aspect of the present invention, an embedded optical fingerprint display device is provided, which has a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, wherein at least one pixel unit includes: a display pixel unit, at least including a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit disposed on the substrate; and a fingerprint pixel unit, having an optical fingerprint sensor disposed on the substrate, and a specific color resist disposed on the optical fingerprint sensor, wherein the specific color resist is a blue resist or a green resist.

[0007] According to another aspect of the present invention, an embedded optical fingerprint display device is provided, which has a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, wherein at least one pixel unit includes: a display pixel unit at least including a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit disposed on the substrate, and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, wherein a green color resist, a red color resist or no color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a blue color resist is disposed above the optical fingerprint sensor of the remaining pixel units.

[0008] According to another aspect of the present invention, an embedded optical fingerprint display device is provided, which has a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, wherein at least one pixel unit includes: a display pixel unit at least including a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit disposed on the substrate, and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, wherein a blue color resist, a red color resist or no color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a green color resist is disposed above the optical fingerprint sensor of the remaining pixel units.

[0009] According to another aspect of the present invention, an embedded optical fingerprint display device is provided, which has a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, wherein at least one pixel unit includes: a display pixel unit at least including a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit disposed on the substrate, and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, wherein a red color resist, a green color resist or a blue color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and no color resist is disposed above the optical fingerprint sensors of the remaining pixel units.

[0010] The above summary and the following detailed description are exemplary in nature and are intended to further illustrate the claims of the present invention. Other objects and advantages of the present invention will be described in the subsequent description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram showing the integration of an optical fingerprint sensor and a liquid crystal display panel.

[0012] Figure 2 Displays the penetration spectra of the red color resistance, green color resistance, and blue color resistance corresponding to the red sub-pixel, green sub-pixel, and blue sub-pixel of the liquid crystal display device.

[0013] Figure 3 A schematic diagram showing the embedded optical fingerprint display device of the present invention.

[0014] Figure 4 A cross-sectional view showing a pixel unit of a first embodiment of an embedded optical fingerprint display device of the present invention.

[0015] Figure 5 The embedded optical fingerprint display device of the present invention is an example of a specific color resist arrangement to achieve an anti-counterfeiting function.

[0016] Figure 6 The embedded optical fingerprint display device of the present invention is another example of a specific color resist arrangement to achieve an anti-counterfeiting function.

[0017] Figure 7 The embedded optical fingerprint display device of the present invention is another example of a specific color resist arrangement to achieve an anti-counterfeiting function.

[0018] Figure 8 A cross-sectional view showing a pixel unit of a second embodiment of an embedded optical fingerprint display device of the present invention.

[0019] Fig. 9 A cross-sectional view showing a pixel unit of a third embodiment of an embedded optical fingerprint display device of the present invention.

[0020] Optical fingerprint sensor 11,55 Thin film transistor layer 12

[0021] Filter substrate layer 13 Reflection layer 14

[0022] Glass substrate 15 Sunlight 25

[0023] Finger 39 Light source 45

[0024] Substrate 57 Pixel unit 41

[0025] Transparent cover 59 Display pixel unit 411

[0026] Fingerprint pixel unit 413 Pixel display area 421

[0027] Fingerprint detection area 423 Display electrodes 51, 52, 53, 74

[0028] Red color resistance 3-R Green color resistance 3-G

[0029] Blue color resist 3-B Special color resist 3-S

[0030] Red sub-pixel unit 31,81 Green sub-pixel unit 32,82

[0031] Blue sub-pixel unit 33,83 White sub-pixel unit 71

[0032] Black matrix 56 Black lines 565

[0033] Hollow area 561 Red organic light emitting diode 8-R

[0034] Green OLED 8-G Blue OLED 8-B DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the implementation of the present invention and are not intended to limit the present invention.

[0036] By adding a specific color resin above the optical fingerprint sensor to reduce the false rejection rate, and introducing a specific color resin arrangement to achieve anti-counterfeiting function, please refer to Figure 2 The transmission spectra of the red color resistance, green color resistance and blue color resistance corresponding to the red sub-pixel, green sub-pixel and blue sub-pixel of the liquid crystal display device shown are given by Figure 2 It can be seen that green and blue color blocks can block red light. When strong white light penetrates the finger, the blue and green light have shorter wavelengths and are easily absorbed by the human body due to dispersion, making the penetrating light appear red. In the same situation, when fingerprint recognition is performed outdoors, when sunlight passes through the finger, although the shorter wavelengths of blue and green light will be absorbed by the human body, the longer wavelengths of red light and infrared light will still penetrate the finger, causing the optical fingerprint background signal to be too strong under strong light, thereby affecting the accuracy of fingerprint judgment.

[0037] Therefore, the green and blue color resists can block the red light, thus solving the problem of too strong background signal of optical fingerprint caused by strong sunlight. Figure 3 The schematic diagram of the embedded optical fingerprint display device of the present invention is shown, wherein the embedded optical fingerprint display device has a substrate 57, a plurality of pixel units 41, and a transparent cover 59, wherein the plurality of pixel units 41 are disposed on the substrate 57 and arranged in a matrix, and the transparent cover 59 covers the substrate 57 and the pixel units 41 and is transparent, so that Figure 3 Each of the aforementioned pixel units 41 has a display pixel unit 411 and a fingerprint pixel unit 413. The area occupied by the display pixel unit 411 in the pixel unit 41 is the pixel display area 421, and the area occupied by the fingerprint pixel unit 413 in the pixel unit 41 is the fingerprint detection area 423. Figure 3The size and position of the pixel display area 421 and the fingerprint detection area 423 shown in the figure are only exemplary and not limiting. In one embodiment, a local pixel unit 41 may be provided with a display pixel unit 411 and a fingerprint pixel unit 413, while the remaining pixel units 41 may only have a display pixel unit 411 but not a fingerprint pixel unit 413. In other words, the fingerprint pixel unit 413 and the display pixel unit 411 are not one-to-one configurations, and the display pixel unit 411 may be more than the fingerprint pixel unit 413.

[0038] Figure 4 The cross-sectional view of the pixel unit 41 of the first embodiment of the embedded optical fingerprint display device of the present invention is shown. The display pixel unit 411 of the present embodiment is an RGB display pixel of a liquid crystal display (LCD), wherein a pixel unit 41 has a first display electrode 51, a second display electrode 52, a third display electrode 53, and an optical fingerprint sensor 55 disposed on a substrate 57, and the pixel unit 41 also has a red color resist 3-R disposed on the first display electrode 51, a green color resist 3-G disposed on the second display electrode 52, a blue color resist 3-B disposed on the third display electrode 53, and a specific color resist 3-S disposed on the optical fingerprint sensor 55, and the aforementioned first display electrode 51 and the red color resist 3-R constitute a red sub-pixel unit 31, the second display electrode 52 and the green color resist 3-G constitute a green sub-pixel unit 32, the third display electrode 53 and the blue color resist 3-B constitute a blue sub-pixel unit 33, and the optical fingerprint sensor 55 and the specific color resist 3-S constitute the fingerprint pixel unit 413. In this embodiment, the display pixel unit 411 is described as a combination of RGB sub-pixels, but the present invention is not limited thereto. The display pixel unit 411 may also be other possible sub-pixel combinations, such as a combination of RGBW sub-pixels, a combination of RGBG sub-pixels, or a combination of RGBRGW sub-pixels.

[0039] And if Figure 4As shown, the embedded optical fingerprint display device optionally has a black matrix 56. Since the black matrix 56 is composed of a plurality of black lines 565, a matrix composed of a plurality of hollow areas 561 can be defined. The aforementioned red sub-pixel unit 31, green sub-pixel unit 32, blue sub-pixel unit 33, and fingerprint pixel unit 413 are located in positions corresponding to a hollow area 561 of the black matrix 56, respectively. Thus, ambient light can be prevented from directly irradiating the thin film transistor circuit of the pixel unit 41 to maintain the display quality and fingerprint sensing of the embedded optical fingerprint display device. In addition, the embedded optical fingerprint display device further has a transparent cover plate 59 disposed on the black matrix 56 and the color resist 3-R, 3-G, 3-B, 3-S, so that the light source 45 passes through the color resist 3-R, 3-G, 3-B to present a color display, or the light source 45 is reflected to the optical fingerprint sensor 55 by the user's finger 39 covering the transparent cover plate 59 for fingerprint recognition.

[0040] In this embodiment, the specific color resist 3-S can be a blue resist or a green resist. Since a blue resist or a green resist that can filter out red light is added above the optical fingerprint sensor 55, the red light presented after the sunlight 25 penetrates the finger 39 can be filtered out by the blue resist or the green resist. Therefore, the noise generated by the sunlight 25 can be reduced, the accuracy of fingerprint judgment can be improved, and the false rejection rate of fingerprint recognition can be reduced. And since the structure and process of adding a blue resist or a green resist above the optical fingerprint sensor 55 are the same as those of setting the color resist 3-R, 3-G, 3-B on the display electrodes 51, 52, 53, the present invention can achieve fingerprint recognition with a low false rejection rate without changing the structure and process of the display device.

[0041] In addition, in order to achieve the anti-counterfeiting function, when the specific color resist 3-S is a blue color resist, such as Figure 5 As shown, among the plurality of pixel units 41 arranged in a matrix, at least one pixel unit 41 has a green color resist (indicated by G in the figure), a red color resist (indicated by R in the figure), or no color resist (indicated by X in the figure) added above the optical fingerprint sensor 55, while the remaining pixel units 41 still have a blue color resist (indicated by B in the figure) added to filter out red light to reduce interference from strong sunlight. Figure 5The embedded optical fingerprint display device of the present invention is shown in the figure as being configured as a plurality of pixel units 41 with a green color resist added above the optical fingerprint sensor 55 (indicated by G in the figure), a plurality of pixel units 41 with a red color resist added above the optical fingerprint sensor 55 (indicated by R in the figure), and a plurality of pixel units 41 with no color resist added above the optical fingerprint sensor 55 (indicated by X in the figure), but this is only an example and not a limitation. It is conceivable that the embedded optical fingerprint display device of the present invention may also be configured as a plurality of pixel units 41 with a green color resist added above the optical fingerprint sensor 55, and a plurality of pixel units 41 with a red color resist added above the optical fingerprint sensor 55; or A green color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41, and no color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a red color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41, and no color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a green color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41; or a red color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41; or no color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41.

[0042] When the specific color resist 3-S is a green color resist, Figure 6 As shown, among the plurality of pixel units 41 arranged in a matrix, at least one pixel unit 41 has a blue color resist (indicated by B in the figure), a red color resist (indicated by R in the figure), or no color resist (indicated by X in the figure) added above the optical fingerprint sensor 55, while the remaining pixel units 41 still have a green color resist (indicated by G in the figure) added to filter out red light to reduce interference from strong sunlight. Figure 6The embedded optical fingerprint display device of the present invention is shown in the figure as being configured as a plurality of pixel units 41 with a blue color resist added above the optical fingerprint sensor 55 (indicated by B in the figure), a plurality of pixel units 41 with a red color resist added above the optical fingerprint sensor 55 (indicated by R in the figure), and a plurality of pixel units 41 with no color resist added above the optical fingerprint sensor 55 (indicated by X in the figure), but this is only an example and not a limitation. It is conceivable that the embedded optical fingerprint display device of the present invention may also be configured as a blue color resist added above the optical fingerprint sensor 55 of at least one pixel unit 41, and a red color resist added above the optical fingerprint sensor 55 of at least one pixel unit 41; or A blue color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41, and no color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a red color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41, and no color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a blue color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41; or a red color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41; or no color resist is added above the optical fingerprint sensor 55 configured as at least one pixel unit 41.

[0043] Furthermore, another embodiment of the present invention may also be designed only to achieve the anti-counterfeiting function, such as Figure 7 As shown, among the plurality of pixel units 41 arranged in a matrix, at least one pixel unit 41 has a red color resist (indicated by R in the figure), a green color resist (indicated by G in the figure), or a blue color resist (indicated by B in the figure) added above the optical fingerprint sensor 55, while the optical fingerprint sensors 55 of the remaining pixel units 41 have no color resist added above them. Figure 7The embedded optical fingerprint display device of the present invention is shown in the figure as being configured as a red color resist (indicated by R in the figure) added above the optical fingerprint sensor 55 of multiple pixel units 41, a green color resist (indicated by G in the figure) added above the optical fingerprint sensor 55 of multiple pixel units 41, and a blue color resist (indicated by B in the figure) added above the optical fingerprint sensor 55 of multiple pixel units 41, but this is only an example and not a limitation. It is conceivable that the embedded optical fingerprint display device of the present invention can also be configured as a blue color resist added above the optical fingerprint sensor 55 of at least one pixel unit 41, and a red color resist added above the optical fingerprint sensor 55 of at least one pixel unit 41; or configured as A blue color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41, and a green color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a red color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41, and a green color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a blue color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a red color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41; or a green color resist is added above the optical fingerprint sensor 55 of at least one pixel unit 41.

[0044] With the aforementioned configuration of color resist, because the colors of fake fingerprints and real fingerprints are different, and real fingerprints also have epidermis and dermis structures, the signal strength ratio of the fake fingerprint sensed by the optical fingerprint sensor 55 with blue color resist, green color resist, red color resist, and without color resist will be different from the signal strength ratio of the real fingerprint. Therefore, the signal strength ratio of the optical fingerprint sensor 55 with blue color resist, green color resist, red color resist, and without color resist can be used to determine whether the sensed fingerprint is a real fingerprint or a fake fingerprint. For example, when the fake fingerprint is more reddish, the signal strength sensed by the optical fingerprint sensor 55 with red color resist will be stronger, while the signal strength sensed by the optical fingerprint sensor 55 with other color resist will be smaller, and the fake fingerprint can be determined accordingly.

[0045] Figure 8The cross-sectional view of the pixel unit 41 of the second embodiment of the embedded optical fingerprint display device of the present invention is shown. The display pixel unit 411 of this embodiment is an RGBW display pixel of a liquid crystal display, and its structure is similar to that of the previous embodiment, except that the pixel unit 41 also has a fourth display electrode 74 disposed on the substrate 57, and no color resistance is disposed above the fourth display electrode 74, so the fourth display electrode 74 constitutes a white sub-pixel unit 71, and the position of this white sub-pixel unit 71 also corresponds to a transparent area 561 of the black matrix 56. The specific color resistance 3-S of this embodiment is still a blue resistance or a green resistance, which is used to filter out the red light presented after the sunlight 25 penetrates the finger 39, thereby reducing the noise generated by the sunlight, improving the accuracy of fingerprint judgment, and thus reducing the false rejection rate of fingerprint recognition. In addition, the corresponding anti-counterfeiting design of this embodiment is the same as that of the previous embodiment, so it will not be repeated.

[0046] Fig. 9 A cross-sectional view of a pixel unit 41 of a third embodiment of an embedded optical fingerprint display device of the present invention is shown. The display pixel unit 411 of this embodiment is an RGB display pixel of an organic light emitting diode (OLED), wherein a pixel unit 41 has a red organic light emitting diode 8-R, a green organic light emitting diode 8-G, a blue organic light emitting diode 8-B, and an optical fingerprint sensor 55 disposed on a substrate 57, and a specific color resist 3-S is disposed on the optical fingerprint sensor 55. The aforementioned red organic light emitting diode 8-R constitutes a red sub-pixel unit 81, the green organic light emitting diode 8-G constitutes a green sub-pixel unit 82, and the blue organic light emitting diode 8-B constitutes a blue sub-pixel unit 83. The optical fingerprint sensor 55 and the specific color resist 35 constitute the fingerprint pixel unit 413. In addition, the embedded optical fingerprint display device has a transparent cover 59 disposed on the red sub-pixel unit 81, the green sub-pixel unit 82, the blue sub-pixel unit 83 and the fingerprint pixel unit 413, so that the light source 45 emitted by the red organic light-emitting diode 8-R, the green organic light-emitting diode 8-G, and the blue organic light-emitting diode 8-B presents a color display, or the light source 45 is reflected to the optical fingerprint sensor 55 due to the user's finger 39 covering the transparent cover 59 for fingerprint recognition.

[0047] In this embodiment, the specific color resist 3-S is a blue resist or a green resist. Since a blue resist or a green resist that can filter out red light is added above the optical fingerprint sensor 55, the red light presented by the sunlight 25 after penetrating the finger 39 can be filtered out by the blue resist or the green resist, thereby reducing the noise generated by the sunlight 25, improving the accuracy of fingerprint judgment, and further reducing the false rejection rate of fingerprint recognition. In addition, the corresponding anti-counterfeiting design of this embodiment is the same as that of the first embodiment, so it will not be repeated.

[0048] In addition, in addition to visible light, since the energy of sunlight in the infrared band (700-900nm) is very strong, the specific color resist 3-S (green resist or blue resist) of the embedded optical fingerprint display device of the present invention can be further added with an organic color material having an absorption band in the near-infrared region near 700-900nm, so as to improve the filtering effect of the green resist and the blue resist in the infrared band.

[0049] From the above description, it can be seen that based on the characteristics of green color resist and blue color resist that can block red light, the present invention sets green color resist and blue color resist on the optical fingerprint sensor, which can effectively filter out the red light presented after the sunlight penetrates the finger, thereby reducing the noise generated by the sunlight, improving the accuracy of fingerprint judgment, and thus reducing the false rejection rate of fingerprint recognition. In addition, by introducing a specific color resist arrangement, the sensed fingerprint can be determined as a true fingerprint or a false fingerprint according to the signal strength ratio sensed by the optical fingerprint sensor, thereby achieving the anti-counterfeiting function.

[0050] The above embodiments are merely examples for the convenience of description. The scope of rights claimed by the present invention should be based on the claims, but not limited to the above embodiments.

Claims

1. An embedded optical fingerprint display device, comprising a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, characterized in that: At least one pixel unit comprises: a display pixel unit, comprising at least a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit disposed on the substrate; and A fingerprint pixel unit has an optical fingerprint sensor disposed on the substrate, and a specific color resist disposed on the optical fingerprint sensor, wherein the specific color resist is a blue resist or a green resist, and the red sub-pixel unit, the green sub-pixel unit, the blue sub-pixel unit and the fingerprint pixel unit have the same structure.

2. The embedded optical fingerprint display device according to claim 1, characterized in that: The red sub-pixel unit has a first display electrode disposed on the substrate and a red color resist disposed on the first display electrode; the green sub-pixel unit has a second display electrode disposed on the substrate and a green color resist disposed on the second display electrode; the blue sub-pixel unit has a third display electrode disposed on the substrate and a blue color resist disposed on the third display electrode, and the red color resist, the green color resist, the blue color resist and the specific color color resist are respectively disposed on the first display electrode, the second display electrode, the third display electrode and the optical fingerprint sensor in the same process.

3. The embedded optical fingerprint display device according to claim 2, characterized in that: There is also a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

4. The embedded optical fingerprint display device according to claim 2, characterized in that: The display pixel unit further has a white sub-pixel unit. The white sub-pixel unit has a fourth display electrode disposed on the substrate, and no color resistance is disposed above the fourth display electrode.

5. The embedded optical fingerprint display device according to claim 4, characterized in that: There is also a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, white sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

6. The embedded optical fingerprint display device according to claim 1, characterized in that: The red sub-pixel unit has a red organic light emitting diode disposed on the substrate; the green sub-pixel unit has a green organic light emitting diode disposed on the substrate; and the blue sub-pixel unit has a blue organic light emitting diode disposed on the substrate.

7. An embedded optical fingerprint display device, comprising a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, characterized in that: At least one pixel unit comprises: a display pixel unit at least comprising a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit disposed on the substrate, and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, a green color resist, a red color resist or no color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a blue color resist is disposed above the optical fingerprint sensor of the remaining pixel units, wherein the configuration of the optical fingerprint sensor of at least one pixel unit having a green color resist, a red color resist or no color resist disposed above the optical fingerprint sensor is as follows: a green color resist is disposed above the optical fingerprint sensor of at least one pixel unit, a red color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a blue color resist is disposed above the optical fingerprint sensor of at least one pixel unit. No color resist is set above the optical fingerprint sensor of at least one pixel unit; a green color resist is set above the optical fingerprint sensor of at least one pixel unit, and a red color resist is set above the optical fingerprint sensor of at least one pixel unit; a green color resist is set above the optical fingerprint sensor of at least one pixel unit, and no color resist is set above the optical fingerprint sensor of at least one pixel unit; a red color resist is set above the optical fingerprint sensor of at least one pixel unit, and no color resist is set above the optical fingerprint sensor of at least one pixel unit; a green color resist is set above the optical fingerprint sensor of at least one pixel unit; a red color resist is set above the optical fingerprint sensor of at least one pixel unit; or no color resist is set above the optical fingerprint sensor of at least one pixel unit.

8. The embedded optical fingerprint display device according to claim 7, characterized in that: The red sub-pixel unit has a first display electrode arranged on the substrate and a red color resist arranged on the first display electrode; the green sub-pixel unit has a second display electrode arranged on the substrate and a green color resist arranged on the second display electrode; the blue sub-pixel unit has a third display electrode arranged on the substrate and a blue color resist arranged on the third display electrode.

9. The embedded optical fingerprint display device according to claim 8, characterized in that: There is also a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

10. The embedded optical fingerprint display device according to claim 8, characterized in that: The display pixel unit further has a white sub-pixel unit. The white sub-pixel unit has a fourth display electrode disposed on the substrate, and no color resistance is disposed above the fourth display electrode.

11. The embedded optical fingerprint display device according to claim 10, characterized in that: There is also a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, white sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

12. The embedded optical fingerprint display device according to claim 7, characterized in that: The red sub-pixel unit has a red organic light emitting diode disposed on the substrate; the green sub-pixel unit has a green organic light emitting diode disposed on the substrate; and the blue sub-pixel unit has a blue organic light emitting diode disposed on the substrate.

13. An embedded optical fingerprint display device, comprising a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, characterized in that: At least one pixel unit comprises: a display pixel unit at least comprising a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit disposed on the substrate, and a fingerprint pixel unit having an optical fingerprint sensor disposed on the substrate, a blue color resist, a red color resist or no color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a green color resist is disposed above the optical fingerprint sensor of the remaining pixel units, wherein the optical fingerprint sensor of at least one pixel unit having a blue color resist, a red color resist or no color resist disposed above the optical fingerprint sensor is configured as follows: a blue color resist is disposed above the optical fingerprint sensor of at least one pixel unit, a red color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a green color resist is disposed above the optical fingerprint sensor of at least one pixel unit. No color resist is set above the optical fingerprint sensor of at least one pixel unit; a blue color resist is added above the optical fingerprint sensor of at least one pixel unit, and a red color resist is set above the optical fingerprint sensor of at least one pixel unit; a blue color resist is set above the optical fingerprint sensor of at least one pixel unit, and no color resist is set above the optical fingerprint sensor of at least one pixel unit; a red color resist is set above the optical fingerprint sensor of at least one pixel unit, and no color resist is set above the optical fingerprint sensor of at least one pixel unit; a blue color resist is set above the optical fingerprint sensor of at least one pixel unit; a red color resist is set above the optical fingerprint sensor of at least one pixel unit; or no color resist is set above the optical fingerprint sensor of at least one pixel unit.

14. The embedded optical fingerprint display device according to claim 13, characterized in that: The red sub-pixel unit has a first display electrode arranged on the substrate and a red color resist arranged on the first display electrode; the green sub-pixel unit has a second display electrode arranged on the substrate and a green color resist arranged on the second display electrode; the blue sub-pixel unit has a third display electrode arranged on the substrate and a blue color resist arranged on the third display electrode.

15. The embedded optical fingerprint display device according to claim 14, characterized in that It further has a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

16. The embedded optical fingerprint display device according to claim 14, characterized in that: The display pixel unit further has a white sub-pixel unit. The white sub-pixel unit has a fourth display electrode disposed on the substrate, and no color resistance is disposed above the fourth display electrode.

17. The embedded optical fingerprint display device according to claim 16, characterized in that: It further has a black matrix, which is composed of a plurality of black lines to define a plurality of hollow areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, white sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a hollow area of ​​the black matrix respectively.

18. The embedded optical fingerprint display device according to claim 13, characterized in that: The red sub-pixel unit has a red organic light emitting diode disposed on the substrate; the green sub-pixel unit has a green organic light emitting diode disposed on the substrate; and the blue sub-pixel unit has a blue organic light emitting diode disposed on the substrate.

19. An embedded optical fingerprint display device, comprising a substrate, a plurality of pixel units disposed on the substrate and arranged in a matrix, and a transparent cover disposed on the plurality of pixel units, characterized in that: At least one pixel unit includes: a display pixel unit includes at least one red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit arranged on the substrate, and a fingerprint pixel unit has an optical fingerprint sensor arranged on the substrate, a red color resist, a green color resist or a blue color resist is arranged above the optical fingerprint sensor of at least one pixel unit, and no color resist is arranged above the optical fingerprint sensor of the remaining pixel units, wherein the red color resist, a green color resist or a blue color resist is arranged above the optical fingerprint sensor of at least one pixel unit, and the configuration is as follows: a red color resist is arranged above the optical fingerprint sensor of at least one pixel unit, a green color resist is arranged above the optical fingerprint sensor of at least one pixel unit, and the optical fingerprint sensor of at least one pixel unit is arranged A blue color resist is disposed above the optical fingerprint sensor; a blue color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a red color resist is disposed above the optical fingerprint sensor of at least one pixel unit; a blue color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a green color resist is disposed above the optical fingerprint sensor of at least one pixel unit; a red color resist is disposed above the optical fingerprint sensor of at least one pixel unit, and a green color resist is disposed above the optical fingerprint sensor of at least one pixel unit; a blue color resist is disposed above the optical fingerprint sensor of at least one pixel unit; a red color resist is disposed above the optical fingerprint sensor of at least one pixel unit; or a green color resist is disposed above the optical fingerprint sensor of at least one pixel unit.

20. The embedded optical fingerprint display device according to claim 19, characterized in that: The red sub-pixel unit has a first display electrode arranged on the substrate and a red color resist arranged on the first display electrode; the green sub-pixel unit has a second display electrode arranged on the substrate and a green color resist arranged on the second display electrode; the blue sub-pixel unit has a third display electrode arranged on the substrate and a blue color resist arranged on the third display electrode.

21. The embedded optical fingerprint display device according to claim 20, characterized in that: There is also a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

22. The embedded optical fingerprint display device according to claim 20, characterized in that: The display pixel unit further has a white sub-pixel unit. The white sub-pixel unit has a fourth display electrode disposed on the substrate, and no color resistance is disposed above the fourth display electrode.

23. The embedded optical fingerprint display device according to claim 22, characterized in that: There is also a black matrix, which is composed of a plurality of black lines to define a plurality of transparent areas arranged in a matrix, and the red sub-pixel unit, green sub-pixel unit, blue sub-pixel unit, white sub-pixel unit, and fingerprint pixel unit of each pixel unit are located corresponding to a transparent area of ​​the black matrix respectively.

24. The embedded optical fingerprint display device according to claim 19, characterized in that: The red sub-pixel unit has a red organic light emitting diode disposed on the substrate; the green sub-pixel unit has a green organic light emitting diode disposed on the substrate; and the blue sub-pixel unit has a blue organic light emitting diode disposed on the substrate.

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