Fingerprint recognition display panel, driving method thereof, and display device

Abstract

The embodiment of the present invention discloses a fingerprint recognition display panel, a driving method thereof, and a display device. The fingerprint recognition display panel includes an array substrate, multiple light-emitting units, a display driving unit, and multiple fingerprint recognition units. The fingerprint recognition display panel includes a non-fingerprint recognition stage and a fingerprint recognition stage. The array substrate includes a fingerprint recognition area and a non-fingerprint recognition area adjacent to each other. The vertical projection of the fingerprint recognition unit on the plane where the array substrate is located is located in the fingerprint recognition area, and at least part of the fingerprint recognition unit is used to collect the brightness of the fingerprint recognition area in the non-fingerprint recognition stage. The display driving unit is used to compensate the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area. The embodiment of the present invention solves the problem of excessive display brightness difference between the fingerprint recognition area and the surrounding non-fingerprint recognition area, and improves the uniformity of the light output of the display panel.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a fingerprint recognition display panel, a driving method thereof, and a display device. Background Art

[0002] With the continuous development of display technology, display panels with fingerprint recognition function have been widely used in people's production and life.

[0003] However, the display panels with fingerprint recognition function in the prior art still have some technical problems that need to be solved urgently. For example, the fingerprint recognition area may produce black and white spots, which will affect the overall display effect of the display panel. Summary of the Invention

[0004] The present invention provides a fingerprint recognition display panel, a driving method thereof, and a display device. A fingerprint recognition unit collects the brightness of a fingerprint recognition area. Based on the collected brightness and a pre-stored brightness compensation mapping table, a display driving unit compensates the display brightness of the fingerprint recognition area, effectively solving the problem of excessive difference in display brightness between the fingerprint recognition area and the non-fingerprint recognition area, and improving the display effect of the display panel.

[0005] In a first aspect, an embodiment of the present invention provides a fingerprint recognition display panel, comprising an array substrate, a plurality of light-emitting units, a display driver unit, and a plurality of fingerprint recognition units, wherein the light-emitting units and the fingerprint recognition units are respectively located on either side of the array substrate, and the display driver unit is electrically connected to the light-emitting units and the fingerprint recognition units, respectively;

[0006] The fingerprint recognition display panel includes a non-fingerprint recognition phase and a fingerprint recognition phase, the array substrate includes a fingerprint recognition area and a non-fingerprint recognition area adjacent to each other, the vertical projection of the fingerprint recognition unit on the plane where the array substrate is located is located in the fingerprint recognition area, and at least part of the fingerprint recognition unit is used to collect the brightness of the fingerprint recognition area in the non-fingerprint recognition phase;

[0007] The display driving unit is configured to compensate the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0008] In a second aspect, an embodiment of the present invention provides a fingerprint recognition display panel driving method, comprising:

[0009] The brightness of the fingerprint recognition area is collected during the non-fingerprint recognition stage;

[0010] The display brightness of the fingerprint recognition area is compensated according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0011] In a third aspect, an embodiment of the present invention provides a fingerprint recognition display device, comprising the fingerprint recognition display panel as described in any one of the first aspects.

[0012] The fingerprint recognition display panel provided by an embodiment of the present invention is provided with multiple fingerprint recognition units. Some of the fingerprint recognition units collect the brightness of the fingerprint recognition area during the non-fingerprint recognition stage. The display driving unit compensates the display brightness of the fingerprint recognition area based on the collected brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, thereby avoiding a large brightness difference between the fingerprint recognition area and the non-fingerprint recognition area, and improving the uniformity of the display brightness of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a fingerprint recognition display panel in the prior art;

[0014] Figure 2 1 is a schematic top view of a fingerprint recognition display panel provided by an embodiment of the present invention;

[0015] Figure 3 yes Figure 2 A schematic cross-sectional view of a fingerprint recognition display panel along section line BB';

[0016] Figure 4 This is a schematic diagram of the identification phase of a fingerprint identification display panel provided by an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of another fingerprint recognition display panel in the recognition stage provided by an embodiment of the present invention;

[0018] Figure 6 This is a schematic diagram of another fingerprint recognition display panel in the recognition stage provided by an embodiment of the present invention;

[0019] Figure 7 yes Figure 2 An enlarged schematic diagram of the middle C area;

[0020] Figure 8 is a specific schematic diagram of a pre-charged brightness compensation mapping table provided in an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the distribution of a fingerprint recognition unit provided by an embodiment of the present invention;

[0022] Figure 10is a schematic diagram of the distribution of another fingerprint recognition unit provided by an embodiment of the present invention;

[0023] Figure 11 This is a flow chart of a fingerprint recognition display panel driving method provided by an embodiment of the present invention;

[0024] Figure 12 This is a flow chart of another fingerprint recognition display panel driving method provided by an embodiment of the present invention;

[0025] Figure 13 This is a flow chart of another fingerprint recognition display panel driving method provided by an embodiment of the present invention;

[0026] Figure 14 This is a flow chart of another fingerprint recognition display panel driving method provided by an embodiment of the present invention;

[0027] Figure 15 It is a structural schematic diagram of a fingerprint recognition display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0029] Figure 1 This is a schematic diagram of the structure of a fingerprint recognition display panel in the prior art. Figure 1 As shown, the fingerprint display panel 10' includes an array substrate 110', a light-emitting layer 120', a driving unit (not shown in the figure) and a fingerprint recognition unit 130'. The light-emitting element 120' and the fingerprint recognition unit 130' are respectively located on both sides of the array substrate 110'. The driving unit is electrically connected to the light-emitting unit 120' and the fingerprint recognition unit 130' to provide a driving signal. The fingerprint recognition unit 130' collects fingerprint information through the fingerprint light-transmitting hole 140'. During the display stage, part of the light emitted by the light-emitting layer 120' will propagate downward. When passing through the array substrate 110', the presence of the fingerprint light-transmitting hole 140' will cause the light reflection degree of different areas in the array substrate 110' (as shown in area 1' and area 2') to be inconsistent, resulting in different display effects in area 1' and area 2', which affects the display effect of the fingerprint recognition display panel 10'.

[0030] Based on the above technical problems, an embodiment of the present invention provides a fingerprint recognition display panel, which includes an array substrate, multiple light-emitting units, a display driving unit and multiple fingerprint recognition units, the light-emitting units and the fingerprint recognition units are respectively located on both sides of the array substrate, and the display driving unit is electrically connected to the light-emitting units and the fingerprint recognition units, respectively; the fingerprint recognition display panel includes a non-fingerprint recognition stage and a fingerprint recognition stage, the array substrate includes a fingerprint recognition area and a non-fingerprint recognition area adjacent to each other, the vertical projection of the fingerprint recognition unit on the plane where the array substrate is located is located in the fingerprint recognition area, and at least part of the fingerprint recognition units are used to collect the brightness of the fingerprint recognition area in the non-fingerprint recognition stage; the display driving unit is used to compensate for the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0031] By adopting the above technical solution, multiple fingerprint recognition units are set up, and some fingerprint recognition units collect the brightness of the fingerprint recognition area during the non-fingerprint recognition stage of the fingerprint recognition display panel. The display driving unit compensates the display brightness with the fingerprint recognition area based on the collected brightness and the pre-stored brightness compensation table, thereby avoiding excessive difference in display brightness between the fingerprint recognition area and the non-fingerprint recognition area, which affects the display effect of the fingerprint recognition display panel.

[0032] The above is the core concept of the present invention. The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] Figure 2 is a top view schematic diagram of a fingerprint recognition display panel provided by an embodiment of the present invention, Figure 3 yes Figure 2 A schematic cross-sectional view of a fingerprint recognition display panel along section line BB'. Figure 4 This is a schematic diagram of the identification phase of a fingerprint identification display panel provided by an embodiment of the present invention, with reference to Figures 2 to 4As shown, the fingerprint recognition display panel 10 provided by the embodiment of the present invention includes an array substrate 110, a plurality of light-emitting units 120, a display driving unit (not shown in the figure) and a plurality of fingerprint recognition units 130. The light-emitting units 120 and the fingerprint recognition units 130 are respectively located on both sides of the array substrate 110, and the display driving unit is electrically connected to the light-emitting units 120 and the fingerprint recognition units 130 respectively. The fingerprint recognition display panel 10 includes a non-fingerprint recognition stage T1 and a fingerprint recognition stage T2. The array substrate 110 includes a fingerprint recognition area A1 and a non-fingerprint recognition area A2 adjacent to each other. The vertical projection of the fingerprint recognition unit 130 on the plane where the array substrate 110 is located is located in the fingerprint recognition area A1, and at least some of the fingerprint recognition units 130 are used to collect the brightness of the fingerprint recognition area A1 during the non-fingerprint recognition stage T1. The display driving unit is used to compensate the display brightness of the fingerprint recognition area A1 according to the brightness of the fingerprint recognition area A1 and a pre-stored brightness compensation mapping table to reduce the display brightness difference between the fingerprint recognition area A1 and the non-fingerprint recognition area A2.

[0034] The fingerprint recognition display panel 10 provided in an embodiment of the present invention includes an array substrate 110, multiple light-emitting units 120, a display driver unit (not shown), and a fingerprint recognition unit 130. The multiple light-emitting units 120 are arranged in an array and are located on both sides of the array substrate 110 with the fingerprint recognition unit 130. The display driver unit is electrically connected to the light-emitting units 120, and the display driver unit provides a display drive signal to drive the light-emitting units 120 to emit light. The display driver unit is electrically connected to the fingerprint recognition unit 130, and the display driver unit provides a fingerprint drive signal to drive the fingerprint recognition unit 130 to collect brightness.

[0035] Specifically, such as Figure 4 As shown, the fingerprint recognition display panel 10 includes a non-fingerprint recognition phase T1 and a fingerprint recognition phase T2. The fingerprint recognition phase T2 is when a user places their finger on the fingerprint recognition display panel 10 to collect and authenticate the user's fingerprint information. The non-fingerprint recognition phase T1 means that no user fingerprint information is collected, and the fingerprint recognition display panel 10 can be in either the off or on state.

[0036] Further, such as Figure 2 and Figure 3As shown, the array substrate 110 includes a fingerprint recognition area A1 and a non-fingerprint recognition area A2. A fingerprint light-transmitting hole 140 is provided on one side of the fingerprint recognition area A1 near the multiple fingerprint recognition units 130 to facilitate the collection of user fingerprint information. During the non-fingerprint recognition stage T1 or the fingerprint recognition stage T2, light emitted by the light-emitting unit 120 in the fingerprint recognition area A1 may pass through the fingerprint light-transmitting hole 140 and then be reflected by the array substrate 110. The intensity of the light may be inconsistent with the intensity of the light directly reflected from the non-fingerprint recognition area A2. The fingerprint recognition units 130 collect the brightness of the fingerprint recognition area and adjust the brightness of the fingerprint recognition area A1 to ensure that the display brightness difference between the fingerprint recognition area A1 and the non-fingerprint recognition area A2 is not noticeable.

[0037] Specifically, the display driver unit stores a brightness compensation mapping table that represents the brightness data for fingerprint recognition area A1, calibrated through pre-testing of the fingerprint recognition display panel 10. This table includes the brightness contrast values ​​of the fingerprint recognition unit 130 and the corresponding brightness values ​​of the display driver unit. The brightness contrast values ​​of the fingerprint recognition units in this brightness data table reflect the brightness difference between fingerprint recognition area A1 and non-fingerprint recognition area A2. The brightness values ​​of the display driver unit are experimentally compensated brightness values. Based on this, the display driver drives the light-emitting units to balance the brightness difference between the fingerprint recognition area A1 and non-fingerprint recognition area A2. When some fingerprint recognition units 130 are not in the fingerprint recognition area A2, the display driver unit obtains the brightness information and, in combination with the pre-stored brightness compensation mapping table, compensates the display brightness of the fingerprint recognition area A1. This ensures that the display brightness of the fingerprint recognition area A1 reaches a normal display brightness, similar to the display brightness of the non-fingerprint recognition area A2, thus ensuring consistent light output from the fingerprint recognition display panel 10. For example, if the display brightness of the fingerprint recognition area A1 collected by the fingerprint recognition unit 130 is lower than the display brightness in the pre-stored brightness compensation mapping table, the display driving unit brightens the display brightness of the fingerprint recognition area A1; if the display brightness of the fingerprint recognition area A1 collected by the fingerprint recognition unit 130 is higher than the display brightness in the pre-stored brightness compensation mapping table, the display driving unit dims the display brightness of the fingerprint recognition area A1.

[0038] In summary, the fingerprint recognition display panel provided by the embodiment of the present invention is equipped with multiple fingerprint recognition units, and at least some of the fingerprint recognition units collect the brightness of the fingerprint recognition area in the non-fingerprint recognition stage. The display driving unit compensates the display brightness of the fingerprint recognition area based on the brightness collected by the fingerprint recognition unit and the pre-stored brightness compensation mapping table, thereby ensuring that the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area is not obvious, thereby improving the display effect of the entire fingerprint recognition display panel.

[0039] Figure 5 This is a schematic diagram of another fingerprint recognition display panel provided by an embodiment of the present invention, combined with Figure 2 、 Figure 3 and Figure 5 As shown, the non-fingerprint recognition stage T1 includes a display stage T1', and the fingerprint recognition display panel 10 further includes a brightness acquisition stage T, which is located between the fingerprint recognition stage T2 and the display stage T1'; at least part of the fingerprint recognition unit 130 is used to collect the display brightness of the fingerprint recognition area A1 in the brightness acquisition stage T.

[0040] Among them, Figure 5 As shown, the non-fingerprint recognition phase T1 includes a display phase T1', that is, the fingerprint recognition display panel 10 displays after the fingerprint recognition phase T2 and is in a bright screen state. The fingerprint recognition unit 130 collects the brightness of the fingerprint recognition area A1 between the fingerprint recognition phase T2 and the display phase T1', that is, the time period between the fingerprint recognition phase T2 and the display phase T1' is defined as the brightness collection phase T. The display driving unit compensates the display brightness of the fingerprint recognition area A1 based on the brightness information collected by the fingerprint recognition unit in the brightness collection phase T and the pre-stored brightness compensation mapping table to reduce the display brightness difference between the fingerprint recognition area A1 and the non-fingerprint recognition area A2.

[0041] Figure 6 This is a schematic diagram of another fingerprint recognition display panel provided by an embodiment of the present invention, combined with Figure 2 、 Figure 3 and Figure 6 As shown, at least part of the fingerprint recognition unit 130 is further configured to collect the display brightness of the fingerprint recognition area A1 every preset time Δs during the display stage T1'; and the display driving unit is further configured to compensate the display brightness of the fingerprint recognition area A1 based on the brightness of the fingerprint recognition area A1 collected each time, so as to reduce the display brightness difference between the fingerprint recognition area A1 and the non-fingerprint recognition area A2.

[0042] Among them, Figure 6As shown, the fingerprint recognition unit 130 collects the display brightness of the fingerprint recognition area A1 during the display stage T1'. Specifically, the display stage T1' enters a brightness collection stage T' every time a preset time Δs is passed, and the display brightness of the fingerprint recognition area A1 is collected. The display driving unit compensates the display brightness of the fingerprint recognition area A1 based on the brightness information collected by the fingerprint recognition unit and the pre-stored brightness compensation mapping table to reduce the display brightness difference between the fingerprint recognition area A1 and the non-fingerprint recognition area A2. The display stage T1' includes multiple preset times Δs, that is, it includes multiple brightness collection stages T'. The display brightness of the fingerprint recognition area A1 is collected multiple times, which can avoid the fingerprint recognition display panel 10 in the display stage T1'. As the display time increases, the luminous efficiency of the light-emitting unit 120 changes, that is, the display brightness of the fingerprint recognition area A1 and the non-fingerprint recognition area A2 changes. By collecting the brightness of the fingerprint recognition area A1 multiple times in real time during the display stage T1', the brightness difference can be compensated, thereby improving the speed and frequency of the display driver unit to supplement the display brightness of the fingerprint recognition area A1, better improving the light output consistency of the fingerprint recognition display panel 10, and improving the display effect.

[0043] Figure 7 yes Figure 2 An enlarged schematic diagram of the C area, see Figure 2 、 Figure 3 and Figure 7 As shown, the display driving unit compensates for the display brightness of the fingerprint recognition area A1, including: compensating the light-emitting unit 120 at the center point A11 of the fingerprint recognition area A1 with the maximum amplitude, compensating the light-emitting unit 120 at the edge point A12 of the fingerprint recognition area A1 with the minimum amplitude, and interpolating the light-emitting unit 120 at other positions A13 of the fingerprint recognition area A1 except the center point A11 and the edge point A12 between the maximum amplitude and the minimum amplitude according to the position.

[0044] Among them, Figure 7 As shown, the fingerprint recognition display panel 10 includes multiple light-emitting units 120. The specific number of light-emitting units 120 is not specifically limited in the embodiment of the present invention. The fingerprint recognition area A1 includes a center point A11, edge points A12, and other positions A13. Multiple light-emitting units 120 are arranged above different positions of the fingerprint recognition area A1. The display drive unit adjusts the display brightness of the light-emitting units 120 above the fingerprint recognition area A1 to compensate for the display brightness of the fingerprint display area A1.

[0045] Furthermore, different degrees of brightness compensation are applied to different locations of the fingerprint recognition area A1, thereby improving the display effect of the fingerprint recognition display panel 10 from a macro perspective. Specifically, edge point A12 of the fingerprint recognition area A1 is adjacent to the non-fingerprint recognition area A2. The display brightness at edge point A12 may be affected by light provided by the light-emitting units (not shown) above the surrounding non-fingerprint recognition area A2. The display driver unit compensates the light-emitting units 120 at edge point A12 of the fingerprint recognition area A1 with the minimum amplitude to prevent the display brightness at edge point A12 of the fingerprint recognition area A1 from being higher than that of the non-fingerprint recognition area A2. The center point A11 of the fingerprint recognition area A1 is not adjacent to the non-fingerprint recognition area A2. The display brightness at center point A11 is not affected by light provided by the light-emitting units (not shown) above the surrounding non-fingerprint recognition area A2. The display driver unit compensates the light-emitting units 120 at center point A11 of the fingerprint recognition area A1 with the maximum amplitude to prevent the display brightness at center point A11 of the fingerprint recognition area A1 from falling short of that of the non-fingerprint recognition area A2.

[0046] Furthermore, the light-emitting units 120 at the center point A11 of the fingerprint recognition area A1 are compensated at the maximum amplitude, while the light-emitting units 120 at the edge points A12 of the fingerprint recognition area A1 are compensated at the minimum amplitude. This prevents the fingerprint recognition area A1 from having dark edges and bright centers. The light-emitting units 120 at positions A13 other than the center point A11 and the edge points A12 of the fingerprint recognition area A1 are compensated between the maximum and minimum amplitudes according to their positions. This ensures stable brightness compensation in the fingerprint recognition area A1, improving the overall display quality of the fingerprint recognition display panel 10.

[0047] The display driving unit compensates the brightness of the fingerprint display area based on the brightness compensation mapping table. The specific situation is described below.

[0048] Figure 8 This is a specific schematic diagram of the pre-charged brightness compensation mapping table provided by an embodiment of the present invention, refer to Figure 2 、 Figure 3 、 Figure 7 and Figure 8 As shown, the display driving unit compensates the display brightness of the fingerprint recognition area A1 according to the brightness of the fingerprint recognition area A1 and a pre-stored brightness compensation mapping table, including: when the brightness of the fingerprint recognition area A1 is equal to the standard brightness value, the display brightness of the fingerprint recognition area A1 is not compensated; when the brightness of the fingerprint recognition area A1 is greater than the standard brightness value, the display brightness of the fingerprint recognition area A1 is reduced; when the brightness of the fingerprint recognition area A1 is less than the standard brightness value, the display brightness of the fingerprint recognition area A1 is increased.

[0049] Specifically, the pre-stored mapping table is essentially a table of brightness data for fingerprint recognition area A1, calibrated through pre-experimentation. It includes the brightness contrast value of fingerprint recognition unit 130 and the corresponding brightness value of the display driver unit. The display driver unit compares and determines the brightness of fingerprint recognition area A1 with the pre-stored brightness compensation mapping table, and adjusts the light-emitting element 120 above fingerprint recognition area A1 to compensate for the display brightness of fingerprint recognition area A1.

[0050] For example, Figure 8 As shown, the brightness contrast value of the fingerprint recognition unit 130 uses Lv_n to represent different display brightness values ​​(n is a positive integer, representing the brightness contrast value), where Lv_normal represents the normal value. The brightness value of the display drive unit uses Gray_n to represent different compensation brightness values ​​(n is a positive integer, representing the compensation brightness value). Furthermore, when the brightness of the fingerprint recognition area A1 is equal to the standard brightness value, that is, when the brightness contrast value of the fingerprint recognition unit 130 is Lv_normal, the brightness value of the display drive unit may not be compensated. When the brightness of the fingerprint recognition area A1 is greater than the standard brightness value, for example, when the brightness contrast value of the fingerprint recognition unit 130 is Lv_4-Lv_5, that is, the display brightness of the fingerprint recognition area A1 is between Lv_4 and Lv_5, which is greater than the standard brightness value, the display brightness of the fingerprint recognition area A1 is compensated by reducing the display brightness of the fingerprint recognition area A1. When the brightness of fingerprint recognition area A1 is lower than the standard brightness value, for example, when the brightness contrast value of fingerprint recognition unit 130 is Lv_3-Lv_2, that is, the display brightness of fingerprint recognition area A1 is between Lv_3 and Lv_2, which is lower than the standard brightness value, the display brightness of fingerprint recognition area A1 is increased to compensate for the display brightness of fingerprint recognition area A1. Based on the different display brightness conditions of fingerprint display area A1, the display driver unit combines a pre-stored mapping table to perform different degrees of display brightness compensation on fingerprint recognition area A1, thereby improving the overall display effect of fingerprint recognition display panel 10.

[0051] Continue to refer Figure 2 、 Figure 3 and Figure 7 As shown, the non-fingerprint recognition area A2 includes a buffer zone A21, which is adjacent to the fingerprint recognition area A1 and is smaller than the non-fingerprint recognition area A2. The display drive unit is further configured to compensate for the display brightness of the buffer zone A21 based on the brightness of the fingerprint recognition area A1 and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the buffer zone A21 and the fingerprint recognition area A1, thereby reducing the obvious brightness difference at the boundary between the fingerprint recognition area A1 and the non-fingerprint recognition area A2.

[0052] The non-fingerprint recognition area A2 includes a buffer zone A21. Buffer zone A21 allows the non-fingerprint recognition area A2 to be adjacent to the fingerprint recognition area A1. Specifically, buffer zone A21 is located at the boundary between the fingerprint recognition area A1 and the non-fingerprint recognition area A2. By adjusting the brightness of buffer zone A21, the brightness difference between the fingerprint recognition area A1 and the non-fingerprint recognition area A2 at the boundary can be reduced. Even if the brightness compensation for the fingerprint recognition area A1 is not accurate enough, the brightness change between the fingerprint recognition area A1 and the non-fingerprint recognition area A2 can be smoother, reducing the difference and improving the display effect, thereby enhancing the overall display effect of the fingerprint recognition display panel 10. The embodiment of the present invention does not specifically limit the size of buffer zone A21.

[0053] Specifically, the display driver unit compensates for the display brightness of fingerprint recognition area A1 based on the collected brightness of fingerprint recognition area A1 and a pre-stored brightness compensation mapping table. Simultaneously, the display driver unit also compensates for the display brightness of buffer area A21. That is, while compensating for the display brightness of fingerprint recognition area A1, the display brightness of buffer area A21 is also synchronously compensated. This can further reduce the display brightness difference between fingerprint recognition area A1 and non-fingerprint recognition area A2, ensuring uniform light output from the fingerprint recognition display panel 10.

[0054] Continue to refer Figure 2 、 Figure 3 and Figure 7 As shown, the display driving unit compensates the display brightness of the buffer area A21 according to the display brightness of the fingerprint recognition area A1 and the pre-stored brightness compensation mapping table, including: when the display brightness of the fingerprint recognition area A1 is equal to the standard brightness value, the display brightness of the buffer area A21 is not compensated; when the display brightness of the fingerprint recognition area A1 is greater than the standard brightness value, the display brightness of the buffer area A21 is increased; when the display brightness of the fingerprint recognition area A1 is less than the standard brightness value, the display brightness of the buffer area A21 is reduced.

[0055] Specifically, the display driver unit compensates the display brightness of the fingerprint recognition area A1 based on the acquired brightness of the fingerprint recognition area A1 and the pre-stored brightness compensation mapping table, while also compensating the display brightness of the buffer area A21. The display driver unit compares and determines the degree of compensation for the fingerprint recognition area A1 and the buffer area A21 based on the brightness of the fingerprint recognition area A1 and the pre-stored brightness compensation mapping table.

[0056] For example, when the brightness of fingerprint recognition area A1 is equal to the standard brightness value, there is no need to compensate for the display brightness of fingerprint recognition area A1, nor is there any need to compensate for the display brightness of buffer area A21. When the brightness of fingerprint recognition area A1 is greater than the standard brightness value, the brightness of buffer area A21 is increased to compensate for the display brightness of buffer area A21. When the brightness of fingerprint recognition area A1 is less than the standard brightness value, the brightness of buffer area A21 is decreased to compensate for the display brightness of buffer area A21. By compensating for the display brightness of both fingerprint recognition area A1 and buffer area A21, the difference in display brightness between fingerprint recognition area A1 and non-fingerprint recognition area A2 is further reduced.

[0057] The display brightness of the fingerprint recognition area is obtained through the fingerprint recognition unit. The specific distribution of the fingerprint recognition unit is described below.

[0058] Figure 9 This is a schematic diagram of the distribution of a fingerprint recognition unit provided by an embodiment of the present invention, with reference to Figure 2 、 Figure 3 、 Figure 4 and Figure 9 As shown, the fingerprint recognition unit 130 includes a first fingerprint recognition unit 130A and a second fingerprint recognition unit 130B; the first fingerprint recognition unit 130A and the second fingerprint recognition unit 130B are used to collect fingerprint information in the fingerprint recognition stage T2; the second fingerprint recognition unit 130B is also used to collect the brightness of the fingerprint recognition area A1 in the non-fingerprint recognition stage T1.

[0059] The fingerprint recognition display panel 10 includes multiple fingerprint recognition units 130. The embodiment of the present invention does not limit the specific number of fingerprint recognition units 130. The fingerprint recognition units 130 are used to collect fingerprint information during the fingerprint recognition phase T2 and also collect the brightness of the fingerprint recognition area A1 during the non-fingerprint recognition phase T1.

[0060] For example, Figure 9 The fingerprint recognition unit 130 includes a first fingerprint recognition unit 130A and a second fingerprint recognition unit 130B. The first fingerprint recognition unit 130A and the second fingerprint recognition unit 130B are arranged in an array. The second fingerprint recognition unit 130B is limited to Figure 9Middle E area. The fingerprint recognition unit 130 mainly completes the collection of user fingerprint information, that is, all fingerprint recognition units 130 can collect fingerprint information in the fingerprint recognition stage T2, that is, the first fingerprint recognition unit 130A and the second fingerprint recognition unit 130B are used to collect fingerprint information in the fingerprint recognition stage T2. At the same time, at least part of the fingerprint recognition units 130 also collects the brightness of the fingerprint recognition area A1 in the non-fingerprint recognition stage T1 and transmits it to the display drive unit to compensate for the display brightness of the fingerprint recognition area A1. Specifically, the second fingerprint recognition unit 130B can also collect the brightness of the fingerprint recognition area A1 in the non-fingerprint recognition stage T1. By setting the first fingerprint recognition unit 130A and the second fingerprint recognition unit 130B, it is ensured that the fingerprint recognition unit 130 does not affect the collection of fingerprint information, and the display brightness of the fingerprint recognition area A1 is collected to compensate for the brightness of the fingerprint recognition area A1.

[0061] Figure 10 This is a schematic diagram of the distribution of another fingerprint recognition unit provided by an embodiment of the present invention, referring to Figure 2 、 Figure 3 、 Figure 4 and Figure 10 As shown, the fingerprint recognition unit 130 includes a first fingerprint recognition unit 130A and a second fingerprint recognition unit 130B; the first fingerprint recognition unit 130A is used to collect fingerprint information in the fingerprint recognition stage T2, and the second fingerprint recognition unit 130B is used to collect the brightness of the fingerprint recognition area A1 in the non-fingerprint recognition stage T1.

[0062] The fingerprint recognition display panel 10 includes multiple fingerprint recognition units 130. The embodiment of the present invention does not limit the specific number of fingerprint recognition units 130. Some fingerprint recognition units 130 are used to collect fingerprint information during the fingerprint recognition phase T2, while the remaining fingerprint recognition units 130 also collect the brightness of the fingerprint recognition area A1 during the non-fingerprint recognition phase T1.

[0063] For example, Figure 10 The fingerprint recognition unit 130 includes a first fingerprint recognition unit 130A and a second fingerprint recognition unit 130B. The first fingerprint recognition unit 130A is arranged in an array, and the second fingerprint recognition unit 130B is distributed in Figure 10The fingerprint recognition unit 130 primarily collects user fingerprint information. Specifically, the first fingerprint recognition unit 130A collects fingerprint information during the fingerprint recognition phase T2. Simultaneously, the second fingerprint recognition unit 130B also collects the brightness of the fingerprint recognition area A1 during the non-fingerprint recognition phase T1 and transmits it to the display driver unit to compensate for the display brightness of the fingerprint recognition area A1. By providing the first fingerprint recognition unit 130A and the second fingerprint recognition unit 130B, the fingerprint recognition unit 130 can collect both fingerprint information and the display brightness of the fingerprint recognition area A1.

[0064] refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 9 and Figure 10 As shown, the fingerprint recognition units 130 are arranged in an array, and the center point A11 of the fingerprint recognition area A1 is located in the distribution area of ​​the second fingerprint recognition unit 130B; the distribution area of ​​the first fingerprint recognition unit 130A surrounds the distribution area of ​​the second fingerprint recognition unit 130B, or the distribution area of ​​the second fingerprint recognition unit 130B is located in the distribution area of ​​the first fingerprint recognition unit 130A.

[0065] Specifically, such as Figure 9 and Figure 10 As shown, the fingerprint recognition units 130 are arranged in an array, and second fingerprint recognition units 130B are distributed in area E. The second fingerprint recognition units 130B can collect the brightness of the fingerprint recognition area A1 during the non-fingerprint recognition phase T1. The area E where the second fingerprint recognition units 130B are distributed is set to correspond to the center point A11 of the fingerprint recognition area A1, ensuring that the display brightness at the center point A11 of the fingerprint recognition area A1 can be adjusted to the maximum extent.

[0066] Furthermore, the specific arrangement of the fingerprint recognition unit 130 is not limited to one. For example, Figure 9 As shown, the first fingerprint recognition units 130A are distributed around the distribution area E of the second fingerprint recognition units 130B. Figure 10 As shown, the distribution area E of the second fingerprint recognition unit 130B is located in the entire first fingerprint recognition unit 130A. The embodiment of the present invention does not specifically limit the distribution form of the fingerprint recognition unit 130.

[0067] Based on the same inventive concept, an embodiment of the present invention provides a fingerprint recognition display panel driving method. Figure 11 FIG. 1 is a flow chart of a fingerprint recognition display panel driving method provided by an embodiment of the present invention, such as Figure 11 As shown, the fingerprint recognition display panel driving method provided by the embodiment of the present invention includes:

[0068] S110 : collecting the brightness of the fingerprint recognition area during the non-fingerprint recognition phase.

[0069] For example, the non-fingerprint recognition phase means that no user fingerprint information is collected, and the fingerprint recognition display panel can be in the off state or the bright state. In the non-fingerprint recognition phase, the fingerprint recognition unit collects the brightness of the fingerprint recognition area.

[0070] S120 , compensating the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0071] Exemplarily, the pre-stored brightness compensation mapping table is the data values ​​of the normal display brightness of different areas in the fingerprint recognition display panel pre-stored by the display driving unit. The display driving unit obtains the brightness of the fingerprint recognition area collected by the fingerprint recognition unit and combines it with the pre-stored brightness compensation mapping table to further compensate for the display brightness of the fingerprint recognition unit.

[0072] In summary, the fingerprint recognition display panel driving method provided by the embodiment of the present invention first collects the brightness of the fingerprint recognition area during the non-fingerprint recognition phase; finally, based on the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, the display brightness of the fingerprint recognition area is compensated to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area. The fingerprint recognition unit collects the brightness of the fingerprint recognition area, and the display driving unit compensates the display brightness of the fingerprint recognition area based on the brightness collected by the fingerprint recognition unit and the pre-stored brightness compensation mapping table, ensuring that the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area is not obvious, thereby improving the display effect of the entire fingerprint recognition display panel.

[0073] Figure 12 FIG. 1 is a flow chart of another fingerprint recognition display panel driving method provided by an embodiment of the present invention. The fingerprint recognition display panel driving method provided by an embodiment of the present invention further includes:

[0074] S210: In the brightness collection phase, the display brightness of the fingerprint recognition area is collected.

[0075] Exemplarily, the non-fingerprint recognition phase also includes a display phase, i.e., a screen-on phase. The brightness acquisition phase is located between the fingerprint recognition phase and the display phase. For example, the display brightness of the fingerprint recognition area is acquired after the user unlocks the device with their fingerprint and before the screen is turned on.

[0076] S220 , compensating the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0077] Figure 13FIG. 1 is a flow chart of another fingerprint recognition display panel driving method provided by an embodiment of the present invention. The fingerprint recognition display panel driving method provided by an embodiment of the present invention further includes:

[0078] S310: During the display phase, the brightness of the fingerprint recognition area is collected at preset intervals.

[0079] For example, after the user unlocks the display screen, the fingerprint recognition display panel is in the display stage. In the display stage, the brightness of the fingerprint recognition area is collected at regular intervals.

[0080] S320: Compensate the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area collected each time, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0081] For example, during the display phase, the brightness of the fingerprint recognition area is collected at regular intervals, and the display driver unit obtains the collected display brightness information. The display driver unit obtains the collected display brightness information multiple times and compensates the display brightness of the fingerprint recognition area to further reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0082] Figure 14 FIG. 1 is a flow chart of another fingerprint recognition display panel driving method provided by an embodiment of the present invention. The fingerprint recognition display panel driving method provided by an embodiment of the present invention further includes:

[0083] S410: Collecting the brightness of the fingerprint recognition area during the non-fingerprint recognition phase.

[0084] S420 : Compensate the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

[0085] S430. Compensate the light-emitting units at the center point of the fingerprint recognition area with the maximum amplitude, compensate the light-emitting units at the edge points of the fingerprint recognition area with the minimum amplitude, and perform interpolation compensation between the maximum amplitude and the minimum amplitude for the light-emitting units at other positions of the fingerprint recognition area except the center point and the edge points according to their positions.

[0086] For example, the edge point of the fingerprint recognition area is adjacent to the non-fingerprint recognition area, and the display brightness at the edge point may be affected by the light provided by the light-emitting unit above the surrounding non-fingerprint recognition area. The display driving unit compensates the light-emitting unit at the edge point of the fingerprint recognition area with the minimum amplitude to prevent the display brightness of the edge point of the fingerprint recognition area from being higher than the display brightness of the non-fingerprint recognition area.

[0087] The center point of the fingerprint recognition area is not adjacent to the non-fingerprint recognition area, and the display brightness at the center point is not affected by the light provided by the light-emitting units above the surrounding non-fingerprint recognition areas. The display drive unit compensates the light-emitting units at the center point of the fingerprint recognition area to the maximum extent to prevent the display brightness of the center point of the fingerprint recognition area from falling short of the display brightness of the non-fingerprint recognition area.

[0088] The light-emitting units at the center of the fingerprint recognition area are compensated at their maximum amplitude, while those at the edges are compensated at their minimum amplitude. This prevents the fingerprint recognition area from appearing dark at the edges and bright in the center. Light-emitting units at locations other than the center and edges of the fingerprint recognition area are compensated between the maximum and minimum amplitudes based on their positions. This ensures stable brightness compensation across the entire fingerprint recognition area, improving the overall display quality of the fingerprint recognition display panel.

[0089] Optionally, the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table compensate for the display brightness of the fingerprint recognition area, and also include: when the brightness of the fingerprint recognition area is equal to the standard brightness value, not compensating the display brightness of the fingerprint recognition area; when the brightness of the fingerprint recognition area is greater than the standard brightness value, reducing the display brightness of the fingerprint recognition area; when the brightness of the fingerprint recognition area is less than the standard brightness value, increasing the display brightness of the fingerprint recognition area.

[0090] For example, when the brightness of the fingerprint recognition area is equal to the standard brightness value, it means that the current display brightness of the fingerprint recognition area has reached the standard display brightness in the pre-stored brightness compensation mapping table, and no display brightness compensation is performed. When the brightness of the fingerprint recognition area is greater than the standard brightness value, the display brightness of the fingerprint recognition area is reduced to compensate for the display brightness of the fingerprint recognition area. When the brightness of the fingerprint recognition area is less than the standard brightness value, the display brightness of the fingerprint recognition area is increased to compensate for the display brightness of the fingerprint recognition area. Based on the different display brightness conditions of the fingerprint display area, the display drive unit performs different degrees of display brightness compensation to improve the overall display effect of the fingerprint recognition display panel.

[0091] S440 , compensating the display brightness of the buffer area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table to reduce the display brightness difference between the buffer area and the fingerprint recognition area.

[0092] For example, a buffer zone is used to create a proximity between the non-fingerprint recognition area and the fingerprint recognition area. When compensating for the display brightness of the fingerprint recognition area, the display brightness of the buffer zone is also synchronously compensated, further reducing the difference in display brightness between the fingerprint recognition area and the non-fingerprint recognition area, ensuring uniform light output from the fingerprint recognition display panel.

[0093] Optionally, the display brightness of the buffer zone is compensated according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, including: when the brightness of the fingerprint recognition area is equal to the standard brightness value, the display brightness of the buffer zone is not compensated; when the brightness of the fingerprint recognition area is greater than the standard brightness value, the display brightness of the buffer zone is increased; when the brightness of the fingerprint recognition area is less than the standard brightness value, the display brightness of the buffer zone is reduced.

[0094] For example, when the brightness of the fingerprint recognition area is equal to the standard brightness value, there is no need to compensate for the display brightness of the fingerprint recognition area, nor is there any need to compensate for the display brightness of the buffer area. When the brightness of the fingerprint recognition area is greater than the standard brightness value, the brightness of the buffer area is increased to compensate for the display brightness of the buffer area. When the brightness of the fingerprint recognition area is less than the standard brightness value, the brightness of the buffer area is reduced to compensate for the display brightness of the buffer area. By compensating for the display brightness of both the fingerprint recognition area and the buffer area, the difference in display brightness between the fingerprint recognition area and the non-fingerprint recognition area is further reduced.

[0095] Based on the same inventive concept, an embodiment of the present invention further provides a fingerprint recognition display device, Figure 15 FIG. 1 is a schematic structural diagram of a fingerprint recognition display device provided by an embodiment of the present invention. Figure 15 As shown, the fingerprint recognition display device 1 includes the fingerprint recognition display panel 10 provided by any embodiment of the present invention. Since the fingerprint recognition display device 1 includes any of the above-mentioned fingerprint recognition display panels 10, the fingerprint recognition display device 1 has corresponding functions and beneficial effects, which will not be repeated here.

[0096] The fingerprint recognition display device 1 provided in the embodiment of the present invention can be any electronic product with a display function, including but not limited to the following categories: mobile phones, televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not specifically limit this.

[0097] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fingerprint recognition display panel, characterized in that: The device comprises an array substrate, a plurality of light-emitting units, a display driving unit, and a plurality of fingerprint recognition units, wherein the light-emitting units and the fingerprint recognition units are respectively located on both sides of the array substrate, and the display driving unit is electrically connected to the light-emitting units and the fingerprint recognition units respectively; The fingerprint recognition display panel includes a non-fingerprint recognition phase and a fingerprint recognition phase, the array substrate includes a fingerprint recognition area and a non-fingerprint recognition area adjacent to each other, the vertical projection of the fingerprint recognition unit on the plane where the array substrate is located is located in the fingerprint recognition area, and at least part of the fingerprint recognition unit is used to collect the brightness of the fingerprint recognition area in the non-fingerprint recognition phase; The non-fingerprint recognition stage includes a display stage, and the fingerprint recognition display panel further includes a brightness acquisition stage, which is located between the fingerprint recognition stage and the display stage; at least part of the fingerprint recognition unit is used to acquire the display brightness of the fingerprint recognition area during the brightness acquisition stage; Alternatively, at least part of the fingerprint recognition unit is further configured to collect the display brightness of the fingerprint recognition area once every preset time during the display phase; and the display driving unit is further configured to compensate the display brightness of the fingerprint recognition area based on the brightness of the fingerprint recognition area collected each time, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area; The display driving unit is configured to compensate the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

2. The fingerprint recognition display panel according to claim 1, characterized in that: The display driving unit compensates for the display brightness of the fingerprint recognition area, including: The light-emitting unit at the center point of the fingerprint recognition area is compensated with the maximum amplitude, the light-emitting unit at the edge point of the fingerprint recognition area is compensated with the minimum amplitude, and the light-emitting units at other positions of the fingerprint recognition area except the center point and the edge point are interpolated and compensated between the maximum amplitude and the minimum amplitude according to their positions.

3. The fingerprint recognition display panel according to claim 1, characterized in that: The display driving unit compensates the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, including: When the brightness of the fingerprint recognition area is equal to the standard brightness value, no compensation is performed on the display brightness of the fingerprint recognition area; When the brightness of the fingerprint recognition area is greater than the standard brightness value, reducing the display brightness of the fingerprint recognition area; When the brightness of the fingerprint recognition area is less than a standard brightness value, the display brightness of the fingerprint recognition area is increased.

4. The fingerprint recognition display panel according to claim 3, characterized in that: The non-fingerprint recognition area includes a buffer zone, the buffer zone is adjacent to the fingerprint recognition area, and the buffer zone is smaller than the non-fingerprint recognition area; The display driving unit is further configured to compensate the display brightness of the buffer area according to the brightness of the fingerprint identification area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the buffer area and the fingerprint identification area.

5. The fingerprint recognition display panel according to claim 4, characterized in that: The display driving unit compensates the display brightness of the buffer area according to the display brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, including: When the display brightness of the fingerprint recognition area is equal to the standard brightness value, the display brightness of the buffer area is not compensated; When the display brightness of the fingerprint recognition area is greater than the standard brightness value, increasing the display brightness of the buffer area; When the display brightness of the fingerprint recognition area is less than a standard brightness value, the display brightness of the buffer area is reduced.

6. The fingerprint recognition display panel according to claim 1, characterized in that: The fingerprint recognition unit includes a first fingerprint recognition unit and a second fingerprint recognition unit; The first fingerprint recognition unit and the second fingerprint recognition unit are used to collect fingerprint information during the fingerprint recognition phase; the second fingerprint recognition unit is further used to collect the brightness of the fingerprint recognition area during the non-fingerprint recognition phase.

7. The fingerprint recognition display panel according to claim 1, characterized in that: The fingerprint recognition unit includes a first fingerprint recognition unit and a second fingerprint recognition unit; The first fingerprint recognition unit is used to collect fingerprint information during the fingerprint recognition phase, and the second fingerprint recognition unit is used to collect the brightness of the fingerprint recognition area during the non-fingerprint recognition phase.

8. The fingerprint recognition display panel according to claim 6 or 7, characterized in that: The fingerprint recognition units are arranged in an array, and the center point of the fingerprint recognition area is located in the distribution area of ​​the second fingerprint recognition units; The distribution area of ​​the first fingerprint recognition units surrounds the distribution area of ​​the second fingerprint recognition units, or the distribution area of ​​the second fingerprint recognition units is located in the distribution area of ​​the first fingerprint recognition units.

9. A fingerprint recognition display panel driving method, characterized in that: include: The brightness of the fingerprint recognition area is collected during the non-fingerprint recognition stage; The driving method further includes: collecting the display brightness of the fingerprint recognition area in the brightness collection stage; wherein the non-fingerprint recognition stage includes a display stage, and the fingerprint recognition display panel further includes a brightness collection stage, and the brightness collection stage is located between the fingerprint recognition stage and the display stage; the driving method further includes: collecting the display brightness of the fingerprint recognition area in the brightness collection stage; Alternatively, the driving method further includes: During the display phase, the brightness of the fingerprint recognition area is collected at preset intervals; Compensating the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area collected each time, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area; The display brightness of the fingerprint recognition area is compensated according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the fingerprint recognition area and the non-fingerprint recognition area.

10. The driving method according to claim 9, wherein: Compensating the brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, including: The light-emitting unit at the center point of the fingerprint recognition area is compensated with the maximum amplitude, the light-emitting unit at the edge point of the fingerprint recognition area is compensated with the minimum amplitude, and the light-emitting units at other positions of the fingerprint recognition area except the center point and the edge point are interpolated and compensated between the maximum amplitude and the minimum amplitude according to their positions.

11. The driving method according to claim 9, wherein: Compensating the display brightness of the fingerprint recognition area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, further comprising: When the brightness of the fingerprint recognition area is equal to the standard brightness value, no compensation is performed on the display brightness of the fingerprint recognition area; When the brightness of the fingerprint recognition area is greater than the standard brightness value, reducing the display brightness of the fingerprint recognition area; When the brightness of the fingerprint recognition area is less than a standard brightness value, the display brightness of the fingerprint recognition area is increased.

12. The driving method according to claim 9, wherein: The non-fingerprint recognition area includes a buffer zone, the buffer zone is adjacent to the fingerprint recognition area, and the buffer zone is smaller than the non-fingerprint recognition area; The driving method further includes: The display brightness of the buffer area is compensated according to the brightness of the fingerprint identification area and a pre-stored brightness compensation mapping table, so as to reduce the display brightness difference between the buffer area and the fingerprint identification area.

13. The driving method according to claim 12, wherein: Compensating the display brightness of the buffer area according to the brightness of the fingerprint recognition area and a pre-stored brightness compensation mapping table, including: When the brightness of the fingerprint recognition area is equal to the standard brightness value, the display brightness of the buffer area is not compensated; When the brightness of the fingerprint recognition area is greater than a standard brightness value, increasing the display brightness of the buffer area; When the brightness of the fingerprint recognition area is less than a standard brightness value, the display brightness of the buffer area is reduced.

14. A fingerprint recognition display device, characterized in that: It comprises the fingerprint recognition display panel as described in any one of claims 1-8.

Images