Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is used for preventing a touch line from blocking a light hole and improving the incidence amount of detection light. The display panel comprises a display area, the display area comprises a fingerprint identification area, and the fingerprint identification area comprises a light hole; a plurality of sub-pixels located in the display area; the plurality of touch electrodes are positioned in the display area; wherein the touch lines and the light holes are located in different sub-pixel spacer regions.

Description

[Technical field]

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. [Background technology]

[0002] In recent years, display devices with biometric functions have gradually entered people's lives and work. Fingerprint recognition technology has been widely used in applications such as unlocking and secure payment due to the unique identity of fingerprints.

[0003] However, the fingerprint recognition accuracy of current display panels is poor, and misjudgment is prone to occur during recognition. Therefore, how to improve fingerprint recognition performance has become a technical problem that needs to be solved urgently. [Summary of the invention]

[0004] In view of this, embodiments of the present invention provide a display panel and a display device to prevent the touch wires from blocking the light-transmitting holes and increase the incident amount of detection light.

[0005] In one aspect, an embodiment of the present invention provides a display panel, including:

[0006] A display area, the display area including a fingerprint recognition area, the fingerprint recognition area including a light-transmitting hole;

[0007] A plurality of sub-pixels located in the display area;

[0008] A plurality of touch electrodes located in the display area;

[0009] A plurality of touch leads located in the display area, the touch leads being electrically connected to the touch electrodes;

[0010] The display area includes a sub-pixel spacing area, the sub-pixel spacing area is located between two adjacent sub-pixels, and at most one of the touch lead and the light-transmitting hole is provided in the sub-pixel spacing area.

[0011] On the other hand, an embodiment of the present invention provides a display device, including the above-mentioned display panel.

[0012] One of the above technical solutions has the following beneficial effects:

[0013] In the embodiment of the present invention, only at most one of the touch lead and the light-transmitting hole is provided in the sub-pixel spacing area between any two adjacent sub-pixels. On the one hand, the touch lead and the light-transmitting hole are located in different sub-pixel spacing areas and are far apart from each other. Even if the setting position of the touch lead and / or the light-transmitting hole deviates due to factors such as process errors, the touch lead will not cover the light-transmitting hole and cause obstruction to the light-transmitting hole, thereby effectively increasing the amount of detection light that can be emitted through the light-transmitting hole and improving the fingerprint recognition accuracy.

[0014] On the other hand, if the touch lead and the light-transmitting hole are located in the same sub-pixel spacing area, in order to achieve that the touch lead does not block the light-transmitting hole, either the touch lead and the light-transmitting hole need to be as far apart as possible, or the line width of the touch lead needs to be reduced. When the distance between the touch lead and the light-transmitting hole is increased, the touch lead and the light-transmitting hole will tend to be closer to the sub-pixel, making it difficult to maintain a large spacing between the touch lead and the light-transmitting hole and the sub-pixel, and it is easy for the touch lead to block the sub-pixel or the sub-pixel to block the light-transmitting hole. When the line width of the touch lead is reduced, the resistance of the touch lead becomes larger, resulting in a greater attenuation of the touch detection signal. In the embodiment of the present invention, since the touch lead and the light-transmitting hole are located in different sub-pixel spacing areas, while ensuring that the touch lead will not block the light-transmitting hole, sufficient spacing can be ensured between the touch lead and the sub-pixel, and between the light-transmitting hole and the sub-pixel. Even if there is a deviation in the setting position of the touch lead and the light-transmitting hole, it will not cause the touch lead to block the sub-pixel or the sub-pixel to block the light-transmitting hole, and there is no need to reduce the line width of the touch lead. In other words, the above setting method can ensure that there is sufficient spacing between the touch lead and the light-transmitting hole and the sub-pixel, and at the same time, it can also reduce the spacing between adjacent sub-pixels, increase pixel density, or increase the line width of the touch lead to further reduce the resistance of the touch lead and optimize the touch performance.

Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A top view of a display panel provided by an embodiment of the present invention;

[0017] Figure 2 A partial cross-sectional view of a display panel provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of a partial structure of a display panel provided by an embodiment of the present invention;

[0019] Figure 4 Another schematic diagram of the structure of the touch electrode provided by the embodiment of the present invention;

[0020] Figure 5 Another schematic diagram of the structure of the touch lead provided by the embodiment of the present invention;

[0021] Figure 6Another schematic diagram of the film layer positions of the touch electrodes and touch leads provided by the embodiment of the present invention;

[0022] Figure 7 A schematic diagram of a setting position of a light-transmitting hole provided in an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of another arrangement position of the light-transmitting hole provided in an embodiment of the present invention;

[0024] Fig. 9 A schematic diagram of another arrangement position of the light-transmitting hole provided in an embodiment of the present invention;

[0025] Fig.10 A schematic diagram of another arrangement position of the light-transmitting hole provided in an embodiment of the present invention;

[0026] Fig.11 A schematic diagram of a setting position of a touch lead provided by an embodiment of the present invention;

[0027] Fig.12 A schematic diagram of another arrangement position of the touch lead provided by an embodiment of the present invention;

[0028] Fig.13 A schematic diagram of another arrangement position of the touch lead provided in the embodiment of the present invention;

[0029] Fig.14 A schematic diagram of another structure of the touch lead provided by the embodiment of the present invention;

[0030] Fig.15 A schematic diagram of another arrangement position of the touch lead provided by an embodiment of the present invention;

[0031] Fig.16 A schematic diagram of another arrangement position of the touch lead provided by an embodiment of the present invention;

[0032] Fig.17 A schematic diagram of another arrangement position of the touch lead provided by an embodiment of the present invention;

[0033] Fig.18 A schematic diagram of another arrangement position of the light-transmitting hole provided in an embodiment of the present invention;

[0034] Fig.19 A schematic diagram of another arrangement position of the light-transmitting hole provided in an embodiment of the present invention;

[0035] Fig. 20 A schematic diagram of another structure of a touch electrode provided in an embodiment of the present invention;

[0036] Fig.21A schematic diagram of the structure of a display device provided by an embodiment of the present invention. [Specific implementation method]

[0037] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0040] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0041] The inventors found during the research that in order to realize the fingerprint recognition function, a plurality of light-transmitting holes for fingerprint imaging are usually provided in the display panel. However, since the size of such light-transmitting holes is very small, they are easily blocked by certain metal film layers in the display panel, resulting in a reduction in the detection light entering through the light-transmitting holes and poor fingerprint recognition accuracy.

[0042] In this regard, an embodiment of the present invention provides a display panel, such as Figure 1 As shown, Figure 1 A top view of a display panel provided in an embodiment of the present invention, wherein the display panel includes a display area 1, the display area 1 includes a fingerprint recognition area 2, and the fingerprint recognition area 2 includes a light-transmitting hole 3 for fingerprint imaging. Among them, only a partial area of ​​the display area 1 can be reused as the fingerprint recognition area 2, or the entire area can be reused as the fingerprint recognition area 2.

[0043] like Figure 2 and Figure 3 As shown, Figure 2 A partial cross-sectional view of a display panel provided by an embodiment of the present invention, Figure 3A partial structural schematic diagram of a display panel provided by an embodiment of the present invention, the display panel further includes a plurality of sub-pixels 4 located in a display area 1, a plurality of touch electrodes 5 located in the display area 1, and a plurality of touch lines, such as a touch lead 6, located in the display area 1. Among them, the touch electrode 5 and the touch lead 6 can be located on the side of the sub-pixel 4 facing the light emitting direction of the display panel, and the touch lead 6 is electrically connected to the touch electrode 5, and is used to transmit the touch detection signal sensed by the touch electrode 5 to the drive circuit, so that the drive circuit judges the touch position of the finger according to the received touch detection signal. In a feasible implementation, the touch electrode 5 can be a self-capacitive touch electrode, and a plurality of touch electrodes 5 are independently set and arranged in a matrix, and each touch electrode 5 is electrically connected to a touch lead 6. When a finger touches the display screen, the capacitance of the finger is superimposed on the touch electrode 5, so that the capacitance sensed by the touch electrode 5 changes, and then the touch position of the finger is judged according to the touch detection signal transmitted by the touch electrodes 5 at different positions.

[0044] The display area 1 includes a sub-pixel spacing area 7 , which is located between two adjacent sub-pixels 4 , and at most one of a touch lead 6 and a light-transmitting hole 3 is disposed in the sub-pixel spacing area 7 .

[0045] In the embodiments of the present invention, see Figure 2 , a bottom metal layer 8 for shielding ambient light may be provided on the side of the sub-pixel 4 facing away from the light emitting direction of the display panel, and the light-transmitting hole 3 may be a through hole penetrating the bottom metal layer 8. When fingerprint recognition is performed, the light emitted by the sub-pixel 4 may be transmitted to the finger as the light used for recognition and reflected by the finger, and the reflected detection light is emitted into the light sensor 9 at the bottom of the display panel through the light-transmitting hole 3, and then the valley ridge of the fingerprint is recognized according to the intensity of the detection light collected by the light sensor 9 at different positions.

[0046] The inventor discovered during the study of a display panel with both touch and fingerprint recognition functions that, when designing the touch electrodes 5 and the touch leads 6 in the display panel, in order to reduce the shielding of the sub-pixels 4, Figure 3 The touch electrode 5 may be a block electrode formed of a light-transmitting conductive material such as indium tin oxide (ITO), or Figure 4 As shown, Figure 4 This is another structural schematic diagram of the touch electrode 5 provided in an embodiment of the present invention. The touch electrode 5 may also be a grid-shaped electrode formed of a metal material, and the hollow area of ​​the touch electrode 5 exposes the sub-pixel 4. In order to reduce the voltage drop when the touch detection signal is transmitted on the touch lead and improve the accuracy of touch position detection, the touch lead 6 is generally formed of a metal material with a low resistivity, and the touch lead 6 also needs to have a sufficient line width to further reduce its resistance.

[0047] The inventor has found that when the touch electrode 5 is a metal grid structure, the light-transmitting hole 3 can be avoided by directly setting breakpoints on the metal grid. Based on its structural characteristics, the metal grid will not completely separate from the electrode body even if there are breakpoints in some positions, ensuring that the metal strips on the metal grid are connected to each other, thereby still ensuring the realization of normal functions. However, for the touch lead 6, if a hollow or breakpoint is set on the touch lead 6, it is easy to cause a circuit break between the touch electrode 5 and the drive circuit, thereby causing the touch detection signal to be unable to be transmitted normally. Therefore, it is currently difficult to achieve the avoidance of the touch lead 6 to the light-transmitting hole 3. In particular, when self-capacitive touch is adopted, the touch lead 6 must pass through the display area to be electrically connected to multiple touch electrodes 5 one by one. Therefore, there are a large number of touch leads 6 in the display area, resulting in a greater risk of the light-transmitting hole 3 being blocked by the touch lead 6.

[0048] In this regard, in an embodiment of the present invention, by coordinating the extension mode of the touch lead 6 and the arrangement mode of the light-transmitting holes 3, only one of the touch lead 6 and the light-transmitting holes 3 is provided in the sub-pixel spacing area 7 between any two adjacent sub-pixels 4. On the one hand, the touch lead 6 and the light-transmitting holes 3 are located in different sub-pixel spacing areas 7 and are far apart from each other. Even if the setting position of the touch lead 6 and / or the light-transmitting holes 3 deviates due to process errors and other factors, the touch lead 6 will not cover the light-transmitting holes 3 and block the light-transmitting holes 3, thereby effectively increasing the amount of detection light that can be emitted through the light-transmitting holes 3 and improving the fingerprint recognition accuracy.

[0049] On the other hand, if the touch lead 6 and the light-transmitting hole 3 are located in the same sub-pixel spacing area 7, in order to achieve that the touch lead 6 does not block the light-transmitting hole 3, either the touch lead 6 and the light-transmitting hole 3 need to be as far apart as possible, or the line width of the touch lead 6 needs to be reduced. When the distance between the touch lead and the light-transmitting hole is increased, the touch lead 6 and the light-transmitting hole 3 will tend to be closer to the sub-pixel 4, making it difficult to maintain a large distance between the touch lead 6 and the light-transmitting hole 3 and the sub-pixel 4, and it is easy for the touch lead 6 to block the sub-pixel 4 or the sub-pixel 4 to block the light-transmitting hole 3. When the line width of the touch lead 6 is reduced, the resistance of the touch lead 6 becomes larger, resulting in a greater attenuation degree of the touch detection signal. In the embodiment of the present invention, since the touch lead 6 and the light-transmitting hole 3 are located in different sub-pixel spacing areas 7, while ensuring that the touch lead 6 will not block the light-transmitting hole 3, sufficient spacing can be ensured between the touch lead 6 and the sub-pixel 4 and between the light-transmitting hole 3 and the sub-pixel 4. Even if the setting positions of the touch lead 6 and the light-transmitting hole 3 deviate, the touch lead 6 will not block the sub-pixel 4 or the sub-pixel 4 will not block the light-transmitting hole 3, and there is no need to reduce the line width of the touch lead 6.

[0050] In other words, by adopting the above-mentioned setting method, while ensuring that there is sufficient spacing between the touch lead 6, the light-transmitting hole 3 and the sub-pixel 4, the spacing between adjacent sub-pixels 4 can be reduced, the pixel density can be improved, or the line width of the touch lead 6 can be increased to further reduce the resistance of the touch lead 6 and optimize the touch performance.

[0051] It should be noted that, inside the display panel, the sub-pixel 4, the touch lead 6 and the light-transmitting hole 3 are respectively located in different film layers. The spacing between any two of the touch lead 6, the light-transmitting hole 3 and the sub-pixel 4 described in the embodiment of the present invention refers to the spacing between the orthographic projections of the two on the plane where the display panel is located. Exemplarily, the spacing between the touch lead 6 and the light-transmitting hole 3 as described above refers to the spacing between the orthographic projection of the touch lead 6 on the plane where the display panel is located and the orthographic projection of the light-transmitting hole 3 on the plane where the display panel is located.

[0052] In addition, it should be noted that, in the embodiment of the present invention, the extension mode of the touch lead 6 can be flexibly set according to the arrangement mode of the sub-pixels 4, provided that the touch lead 6 is not located in the same sub-pixel spacing region 7 as the light-transmitting hole 3. Figure 3 When the sub-pixels 4 are arranged non-aligned in the second direction Y and / or the third direction Z, the touch lead 6 may extend in a folded line. It should be emphasized that the folded line extension of the touch lead 6 here refers to the overall direction of the touch lead 6, that is, from the top view of the display panel, a single touch lead 6 extends in a longitudinal folded line as a whole. Or, Figure 5 As shown, Figure 5 This is another structural schematic diagram of the touch lead 6 provided in an embodiment of the present invention. When the sub-pixels 4 are aligned in the second direction Y and / or the third direction Z, the touch lead 6 may also extend in a straight line.

[0053] In addition, it should be noted that, in the embodiment of the present invention, the touch electrodes 5 and the touch leads 6 may be arranged in different layers. For example, see Figure 2 and Figure 3 , the touch lead 6 can be located on the side of the touch electrode 5 facing away from the light emitting direction of the display panel. In this case, the multiple touch electrodes 5 in the display panel can be electrode blocks with the same shape and area. Figure 6 As shown, Figure 6 This is another schematic diagram of the film layer positions of the touch electrodes 5 and the touch leads 6 provided in an embodiment of the present invention. The touch electrodes 5 and the touch leads 6 may also be arranged in the same layer. In this case, the touch leads 6 are led out from one side of the touch electrodes 5. It should be noted that when the touch electrodes 5 and the touch leads 6 are arranged in the same layer, in order to avoid the touch leads 6, the sizes of the touch electrodes 5 arranged along the extending direction of the touch leads 6 may be different.

[0054] In a possible implementation, Figure 7 As shown, Figure 7 A schematic diagram of a setting position of the light-transmitting hole 3 provided in an embodiment of the present invention, the sub-pixel 4 includes a first-type sub-pixel 10 located in the fingerprint identification area 2, and a light-transmitting hole 3 is provided in at least part of the sub-pixel spacing area 7 adjacent to the first-type sub-pixel 10.

[0055] In this setting, the distribution density of the light-transmitting holes 3 in the fingerprint recognition area 2 is relatively large, and at least one light-transmitting hole 3 is arranged next to each first-type sub-pixel 10 in the fingerprint recognition area 2. Therefore, after the light emitted by each first-type sub-pixel 10 is reflected back by the finger, it can be emitted into the light sensor 9 through the adjacent light-transmitting hole 3, thereby greatly increasing the amount of detection light collected by the optical sensor.

[0056] In a possible implementation, Figure 8 As shown, Figure 8 A schematic diagram of another setting position of the light-transmitting hole 3 provided in an embodiment of the present invention, the sub-pixel 4 includes a first-type sub-pixel 10 located in the fingerprint identification area 2, the sub-pixel spacing area 7 includes a first-type sub-pixel spacing area 11, the first-type sub-pixel spacing area 11 is located between two adjacent first-type sub-pixels 10 in the first direction X, and the light-transmitting hole 3 is located in at least a portion of the first-type sub-pixel spacing area 11.

[0057] In this arrangement, the light-transmitting hole 3 is only located between two adjacent first-category sub-pixels 10 in a certain direction, that is, the first-category sub-pixel 10 is only provided with a light-transmitting hole 3 on one side or both sides in the first direction X. At this time, the arrangement of the light-transmitting holes 3 in the fingerprint identification area 2 is more evenly dispersed, and while ensuring that the light-transmitting holes 3 have a high distribution density, there will not be a situation where the light-transmitting holes 3 distributed next to a first-category sub-pixel 10 are too dense, thereby avoiding mutual interference of the detection light emitted through adjacent light-transmitting holes 3.

[0058] In a possible implementation, Fig. 9 As shown, Fig. 9 This is another schematic diagram of the arrangement position of the light-transmitting hole 3 provided in an embodiment of the present invention, the display panel includes a plurality of pixel groups 12 arranged along the second direction Y, the pixel group 12 includes a plurality of sub-pixels 4 arranged along the third direction Z, and the second direction Y intersects the third direction Z. The sub-pixels 4 in two adjacent pixel groups 12 may be arranged in a staggered manner in the second direction Y.

[0059] The display area 1 includes a pixel group spacing area 13, and the pixel group spacing area 13 is located between the sub-pixels 4 of two adjacent pixel groups 12. The pixel group spacing area 13 includes a first type of pixel group spacing area 14 and a second type of pixel group spacing area 15, wherein the touch lead 6 is located in the first type of pixel group spacing area 14, and the light-transmitting hole 3 is located in the second type of pixel group spacing area 15. In this arrangement, the touch lead 6 and the light-transmitting hole 3 are respectively located in different pixel group spacing areas 13, that is, the touch lead 6 and the light-transmitting hole 3 each occupy a column, and the arrangement of the touch lead 6 and the light-transmitting hole 3 is more regular while ensuring that the touch lead 6 and the light-transmitting hole 3 are far apart.

[0060] Further, see again Fig. 9 , the first type pixel group spacing areas 14 and the second type pixel group spacing areas 15 are alternately arranged along the second direction Y. At this time, the touch leads 6 and the light-transmitting holes 3 are staggered in one column each, and there is a first type pixel group spacing area 14 between any two adjacent second type pixel group spacing areas 15, so that a plurality of second type pixel group spacing areas 15 are avoided from being concentratedly distributed, thereby reducing the degree of difference in the amount of detection light collected by the optical sensors at different positions.

[0061] Furthermore, the second-type pixel group spacing areas 15 can be arranged at equal intervals, that is, the distance between any two adjacent second-type pixel group spacing areas 15 is equal. At this time, the light-transmitting holes 3 are more evenly distributed in the entire fingerprint recognition area 2, and the uniformity of the amount of detection light collected by the optical sensors at different positions in the fingerprint recognition area 2 is better.

[0062] In addition, in order to improve the distribution uniformity of the light-transmitting holes 3 in each second-type pixel group spacing area 15, the light-transmitting holes 3 can also be arranged at equal intervals in the second-type pixel group spacing area 15, that is, the light-transmitting holes 3 are arranged at equal intervals along the extension direction of the second-type pixel group spacing area 15, and the distance between any two adjacent light-transmitting holes 3 in the second-type pixel group spacing area 15 is equal.

[0063] In a possible implementation, Fig.10 As shown, Fig.10 This is another schematic diagram of the arrangement position of the light-transmitting hole 3 provided in an embodiment of the present invention, the pixel group 12 includes a first pixel group 16 and a second pixel group 17 alternately arranged in sequence along the second direction Y. The first pixel group 16 includes a first sub-pixel 18 and a second sub-pixel 19 alternately arranged along the third direction Z, and the second pixel group 17 includes a plurality of third sub-pixels 20 arranged along the third direction Z. In the second direction Y, the third sub-pixels 20 are arranged non-aligned with the first sub-pixels 18 and the second sub-pixels 19, respectively.

[0064] The light-transmitting hole 3 is located between the third sub-pixel 20 and the first sub-pixel 18 adjacent to it in the first direction X, and / or, the light-transmitting hole 3 is located between the third sub-pixel 20 and the second sub-pixel 19 adjacent to it in the first direction X, and the first direction X intersects with the second direction Y and the third direction Z respectively.

[0065] The first sub-pixel 18 may be a red sub-pixel for emitting red light, the second sub-pixel 19 may be a blue sub-pixel for emitting blue light, and the third sub-pixel 20 may be a green sub-pixel for emitting green light.

[0066] It is understandable that, affected by the characteristics of the luminescent material, the luminous efficiency of sub-pixels emitting different colors of light is different. Generally speaking, the luminous efficiency of a green sub-pixel is higher than that of a red sub-pixel, and the luminous efficiency of a red sub-pixel is higher than that of a blue sub-pixel. If the light-transmitting hole 3 is set between two adjacent sub-pixels emitting the same color of light, if the luminous efficiency of the sub-pixel of that color is high, then the brightness of the reflected light of that color may be high and exceed the fingerprint recognition capability, and if the luminous efficiency of the sub-pixel of that color is low, then the brightness of the reflected light of that color may be too low and cannot be recognized.

[0067] To this end, in an embodiment of the present invention, based on the arrangement of the above-mentioned sub-pixels 4 and the setting position of the light-transmitting hole 3, the light-transmitting hole 3 is located between two adjacent sub-pixels of different colors. After the light emitted by the two sub-pixels of different colors is reflected back by the finger, the brightness of the reflected light of the two colors can be neutralized, thereby avoiding the brightness of the reflected light being too high or too low, thereby optimizing the recognition effect.

[0068] In a possible implementation, Fig.11 and Fig.12 As shown, Fig.11 A schematic diagram of a setting position of the touch lead 6 provided in an embodiment of the present invention, Fig.12 A schematic diagram of another setting position of the touch lead 6 provided in an embodiment of the present invention, wherein the display area 1 includes a first area 21 and a second area 22 adjacently arranged in a second direction Y, the first area 21 includes a first lead area 23 and a first non-lead area 24 arranged along the second direction Y, the second area 22 includes a second lead area 25 and a second non-lead area 26 arranged along the second direction Y, and the first non-lead area 24 and the second non-lead area 26 are adjacently arranged.

[0069] The touch leads 6 electrically connected to the touch electrodes 5 in the first area 21 are located in the first lead area 23, the touch leads 6 electrically connected to the touch electrodes 5 in the second area 22 are located in the second lead area 25, and at least part of the fingerprint identification area 2 is located in the first non-lead area 24 and the second non-lead area 26. Fig.11The fingerprint identification area 2 is shown as being partially located in the first non-lead area 24 and the second non-lead area 26, and partially located in the first lead area 23 and the second lead area 25. Fig.12 The illustrated example shows a situation where all fingerprint identification areas 2 are located in the first non-lead area 24 and the second non-lead area 26 .

[0070] In this arrangement, the touch leads 6 in the first area 21 are concentrated in the first lead area 23 away from the second area 22, while the touch leads 6 in the second area 22 are concentrated in the second lead area 25 away from the first area 21. In this way, no touch leads 6 extend in the adjacent first non-lead area 24 and the second non-lead area 26. When at least part of the fingerprint recognition area 2 is located in the first non-lead area 24 and the second non-lead area 26, the number of touch leads 6 passing through the fingerprint recognition area 2 can be reduced. This can not only reduce the shielding of the fingerprint recognition area 2 by the touch leads 6, improve the transmittance of the fingerprint recognition area 2, and enable more detection light to be emitted into the light-transmitting hole 3 through the fingerprint recognition area 2, but also increase the number of sub-pixel spacing areas 7 in which the light-transmitting hole 3 can be set in the fingerprint recognition area 2. For example, when all fingerprint recognition areas 2 are located in the first non-lead area 24 and the second non-lead area 26, there is no touch lead 6 passing through the fingerprint recognition area 2. At this time, all sub-pixel spacing areas 7 in the fingerprint recognition area 2 can be provided with light-transmitting holes 3, and the distribution density of the light-transmitting holes 3 can reach the maximum.

[0071] In a possible implementation, Fig.13 As shown, Fig.13 This is another schematic diagram of the location of the touch lead 6 provided in an embodiment of the present invention, where the touch electrode 5 includes a first touch electrode 27 and a second touch electrode 28. The first touch electrode 27 is located in the first area 21, and the first touch electrode 27 overlaps with the fingerprint recognition area 2 in a direction perpendicular to the plane where the display panel is located, and the side of the first touch electrode 27 away from the fingerprint recognition area 2 is electrically connected to the touch lead 6; the second touch electrode 28 is located in the second area 22, and the second touch electrode 28 overlaps with the fingerprint recognition area 2 in a direction perpendicular to the plane where the display panel is located, and the side of the second touch electrode 28 away from the fingerprint recognition area 2 is electrically connected to the touch lead 6.

[0072] It should be noted that, taking the first touch electrode 27 as an example, refer again to Fig.13 , the side of the first touch electrode 27 away from the fingerprint recognition area 2 means: in a direction parallel to the plane where the display panel is located, the first touch electrode 27 includes a first side 60 and a second side 61 that are relatively arranged in the second direction Y, wherein the first side 60 is the side of the first touch electrode 27 that overlaps with the fingerprint recognition area 2, and the second side 61 that does not overlap with the fingerprint recognition area 2 is the side of the first touch electrode 27 away from the fingerprint recognition area 2.

[0073] In the above-mentioned setting, the touch lead 6 electrically connected to the first touch electrode 27 is led out from the side of the first touch electrode 27 away from the fingerprint recognition area 2, and the touch lead 6 electrically connected to the second touch electrode 28 is led out from the side of the second touch electrode 28 away from the fingerprint recognition area 2. In this way, this part of the touch lead 6 does not overlap with the fingerprint recognition area 2, and will neither block the fingerprint recognition area 2 nor occupy the sub-pixel spacing area 7 in the fingerprint recognition area 2.

[0074] In the above arrangement, the touch electrodes 5 and the touch leads 6 may be arranged in the same layer or in different layers.

[0075] In one possible implementation, see again Fig.13 , the distance L1 between the first lead area 23 and the second lead area 25 is greater than or equal to the maximum length L2 of the fingerprint identification area 2 in the second direction Y, that is, the fingerprint identification area 2 is only located in the first non-lead area 24 and the second non-lead area 26, the touch lead 6 and the fingerprint identification area 2 avoid each other, and the touch lead 6 does not overlap with the fingerprint identification area 2, which not only improves the transmittance of the fingerprint identification area 2 and the distribution density of the light transmission holes 3, but also can avoid the touch lead 6 blocking the fingerprint identification area 2 while setting the length of the touch lead 6 in the first lead area 23 and the second lead area 25 to be equal, so that the load of each touch lead 6 is consistent.

[0076] Furthermore, if Fig.14 As shown, Fig.14 The present invention provides another structural schematic diagram of the touch lead 6 provided in the embodiment of the present invention. The touch lead 6 includes a first touch lead 29 and a second touch lead 30. The first touch lead 29 and the second touch lead 30 are located in the first lead area 23, and the first touch lead 29 is located on the side of the second touch lead 30 close to the first non-lead area 24. The length of the first touch lead 29 is less than the length of the second touch lead 30. Part of the fingerprint identification area 2 is located in the first lead area 23. And / or, the touch lead 6 includes a third touch lead 31 and a fourth touch lead 32. The third touch lead 31 and the fourth touch lead 32 are located in the second lead area 25. The third touch lead 31 is located on the side of the fourth touch lead 32 close to the second non-lead area 26. The length of the third touch lead 31 is less than the length of the fourth touch lead 32. Part of the fingerprint identification area 2 is located in the second lead area 25.

[0077] Based on the above-mentioned setting mode of the touch lead 6, the distance between the second touch lead 30 and the fourth touch lead 32 is greater than the distance between the first touch lead 29 and the third touch lead 31, so there is a larger area between the second touch lead 30 and the fourth touch lead 32 that is not penetrated by the touch lead 6. Based on this structure, the fingerprint recognition area 2 can be located between the second touch lead 30 and the fourth touch lead 32. Under the premise of ensuring that the touch lead 6 does not penetrate the fingerprint recognition area 2, the area of ​​the fingerprint recognition area 2 can be set larger. For example, the current touch size L3 (the touch electrode 5 includes a first edge and a second edge opposite to each other in the second direction Y, and the touch size refers to the distance between the first edge of one touch electrode 5 and the first edge of another touch electrode 5 in two adjacent touch electrodes 5) is generally about 4 mm, and the total width L4 occupied by the touch lead 6 in the first lead area 23 or the second lead area 25 is about 1 mm. After adopting the above design, the maximum length L2 of the fingerprint recognition area 2 in the second direction Y can be increased to more than 6 mm.

[0078] Further, see again Fig.14 In the first area 21, the length of the touch lead 6 decreases along the direction from the first lead area 23 to the first non-lead area 24, and / or, in the second area 22, the length of the touch lead 6 decreases along the direction from the second lead area 25 to the second non-lead area 26, so that the area of ​​the fingerprint identification area 2 can be set larger while ensuring that the touch lead 6 does not pass through the fingerprint identification area 2.

[0079] In a possible implementation, Fig.15 and Fig.16 As shown, Fig.15 This is another schematic diagram of the location of the touch lead 6 provided in the embodiment of the present invention. Fig.16 This is another schematic diagram of the setting position of the touch lead 6 provided in an embodiment of the present invention. The display area 1 also includes at least one third area 33 and at least one fourth area 34. The third area 33 is located on a side of the first area 21 away from the second area 22, and the fourth area 34 is located on a side of the second area 22 away from the first area 21.

[0080] The third region 33 includes a third lead region 35 and a third non-lead region 36 arranged along the second direction Y. The direction from the third lead region 35 to the third non-lead region 36 is the same as the direction from the first lead region 23 to the first non-lead region 24. The touch lead 6 in the third region 33 is located in the third lead region 35. The fourth region 34 includes a fourth lead region 37 and a fourth non-lead region 38 arranged along the second direction Y. The direction from the fourth lead region 37 to the fourth non-lead region 38 is the same as the direction from the second lead region 25 to the second non-lead region 26. The touch lead 6 in the fourth region 34 is located in the fourth lead region 37.

[0081] In the above configuration, for the first area 21 and the third area 33 located on one side of the fingerprint identification area 2, the touch leads 6 in the two areas are all located on the side of the area away from the second area 22, and for the second area 22 and the fourth area 34 located on the other side of the fingerprint identification area 2, the touch leads 6 in the two areas are all located on the side of the area away from the first area 21, and the touch leads 6 on both sides of the fingerprint identification area 2 tend to be symmetrically distributed, and the arrangement of the touch leads 6 is more regular. Moreover, with such a configuration, the distribution of the touch leads 6 in different areas is consistent, which improves the uniformity of the reflection of the touch leads 6 in different areas to the ambient light.

[0082] In a possible implementation, Fig.17 As shown, Fig.17 This is another schematic diagram of the location of the touch leads 6 provided in an embodiment of the present invention. The display area 1 includes a first central axis 39 . To further improve the regular arrangement of the touch leads 6 and improve the reflection uniformity, the touch leads 6 can be symmetrically arranged along the first central axis 39 .

[0083] In one possible implementation, see again Fig.15 and Fig.16 The fingerprint identification area 2 includes a second central axis 40. In order to further improve the regular arrangement of the touch leads 6 and improve the reflection uniformity, the touch leads 6 in the first lead area 23 and the touch leads 6 in the second lead area 25 are symmetrically arranged along the second central axis 40.

[0084] It should be noted that, in the embodiment of the present invention, the second central axis 40 of the fingerprint identification area 2 and the first central axis 39 of the display area 1 may coincide with each other.

[0085] In a possible implementation, Fig.18 and Fig.19 As shown, Fig.18 This is a schematic diagram of another arrangement position of the light-transmitting hole 3 provided in an embodiment of the present invention. Fig.19 A schematic diagram of another setting position of the light-transmitting hole 3 provided in an embodiment of the present invention, the display panel includes a first pixel group 16 and a second pixel group 17 which are alternately arranged in sequence along a second direction Y, the first pixel group 16 includes a first sub-pixel 18 and a second sub-pixel 19 which are alternately arranged along a third direction Z, the second pixel group 17 includes a plurality of third sub-pixels 20 arranged along the third direction Z, the second direction Y intersects with the third direction Z; and, in the second direction Y, the third sub-pixels 20 are non-aligned with the first sub-pixels 18 and the second sub-pixels 19, respectively.

[0086] See also Fig.18, the light-transmitting hole 3 is located in the sub-pixel spacing area 7 adjacent to the third sub-pixel 20 in the second direction Y and the third direction Z. Alternatively, see Fig.19 The light-transmitting hole 3 is located in the sub-pixel spacing area 7 adjacent to the third sub-pixel 20 in the first direction X and the fourth direction W. The first direction X intersects the second direction Y and the third direction Z respectively. The fourth direction W intersects the second direction Y and the third direction Z respectively.

[0087] When the touch wire 6 does not pass through the fingerprint identification area 2, the distribution density of the light-transmitting holes 3 in the fingerprint identification area 2 can be greater. When the light-transmitting holes 3 are arranged in the above manner, while ensuring that the light-transmitting holes 3 have a greater distribution density, the distribution of the light-transmitting holes 3 in the fingerprint identification area 2 is more uniform, so that the uniformity of the amount of detection light collected by the optical sensors at different positions is better.

[0088] In one possible implementation, see again Figure 4 The touch electrode 5 includes a first hollow portion 41, and in a direction perpendicular to the plane where the display panel is located, the first hollow portion 41 overlaps with the sub-pixel 4, so that the touch electrode 5 exposes the sub-pixel 4 and does not block the sub-pixel 4, thereby improving the light extraction efficiency of the display panel. The touch electrode 5 can be formed of a light-transmitting conductive material such as ITO, or a metal material with low resistance.

[0089] In a possible implementation, Fig. 20 As shown, Fig. 20 The present invention provides another structural schematic diagram of the touch electrode 5 provided in an embodiment of the present invention, wherein the touch electrode 5 includes a first type of touch electrode 42 located in the fingerprint recognition area 2, and at least part of the first type of touch electrode 42 includes a second hollow portion 43. In the direction perpendicular to the plane where the display panel is located, the second hollow portion 43 overlaps with the light transmission hole 3 to allow the touch electrode 5 to expose the light transmission hole 3, thereby reducing the shielding of the light transmission hole 3 by the touch electrode 5, and increasing to a greater extent the amount of detection light entering the optical sensor through the light transmission hole 3, thereby improving the fingerprint recognition accuracy.

[0090] Based on the same inventive concept, an embodiment of the present invention further provides a display device, such as Fig.21 As shown, Fig.21 1 is a schematic diagram of a structure of a display device provided in an embodiment of the present invention, and the display device includes the above-mentioned display panel 100. The specific structure of the display panel 100 has been described in detail in the above-mentioned embodiment, and will not be repeated here. Fig.21 The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader or a television.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, It is characterized in that include: A display area, the display area including a fingerprint recognition area, the fingerprint recognition area including a light-transmitting hole; A plurality of sub-pixels located in the display area; A plurality of touch electrodes located in the display area; Wherein, the touch line and the light-transmitting hole are located in different sub-pixel spacing areas.

2. The display panel according to claim 1, It is characterized in that The sub-pixels include a first type of sub-pixels located in the fingerprint identification area, and the light-transmitting holes are arranged in at least a portion of the sub-pixel spacing area adjacent to the first type of sub-pixels.

3. The display panel according to claim 1, It is characterized in that The sub-pixels include first-type sub-pixels located in the fingerprint identification area, the sub-pixel spacing area includes a first-type sub-pixel spacing area, and the first-type sub-pixel spacing area is located between two adjacent first-type sub-pixels in a first direction; The light-transmitting hole is located in at least a portion of the first-type sub-pixel spacing area.

4. The display panel according to claim 1, It is characterized in that The display panel includes a plurality of pixel groups arranged along a second direction, the pixel groups include a plurality of sub-pixels arranged along a third direction, and the second direction intersects the third direction; The display area includes a pixel group spacing area, and the pixel group spacing area is located between the sub-pixels of two adjacent pixel groups; The pixel group spacing area includes a first type pixel group spacing area and a second type pixel group spacing area, wherein the touch line is located in the first type pixel group spacing area, and the light-transmitting hole is located in the second type pixel group spacing area.

5. The display panel according to claim 4, It is characterized in that The first type pixel group spacing regions and the second type pixel group spacing regions are alternately arranged along the second direction.

6. The display panel according to claim 4, It is characterized in that The spacing areas of the second type pixel groups are arranged at equal intervals.

7. The display panel according to claim 4, It is characterized in that The light-transmitting holes are arranged at equal intervals in the second-type pixel group spacing area.

8. The display panel according to claim 4, It is characterized in that The pixel groups include a first pixel group and a second pixel group alternately arranged in sequence along the second direction; The first pixel group includes first sub-pixels and second sub-pixels alternately arranged along the third direction, the second pixel group includes a plurality of third sub-pixels arranged along the third direction, and in the second direction, the third sub-pixels are arranged non-aligned with the first sub-pixels and the second sub-pixels respectively; The light-transmitting hole is located between the third sub-pixel and the first sub-pixel adjacent to it in the first direction, and / or the light-transmitting hole is located between the third sub-pixel and the second sub-pixel adjacent to it in the first direction, and the first direction intersects with the second direction and the third direction respectively.

9. The display panel according to claim 1, It is characterized in that The touch control line includes a plurality of touch control leads located in the display area; The display area includes a first area and a second area adjacently arranged in a second direction, the first area includes a first lead area and a first non-lead area arranged along the second direction, the second area includes a second lead area and a second non-lead area arranged along the second direction, and the first non-lead area and the second non-lead area are adjacently arranged; Among them, the touch lead electrically connected to the touch electrode in the first area is located in the first lead area, the touch lead electrically connected to the touch electrode in the second area is located in the second lead area, and at least part of the fingerprint recognition area is located in the first non-lead area and the second non-lead area.

10. The display panel according to claim 9, It is characterized in that The touch electrode comprises a first touch electrode and a second touch electrode; The first touch electrode is located in the first area, the first touch electrode overlaps with the fingerprint recognition area in a direction perpendicular to the plane where the display panel is located, and a side of the first touch electrode away from the fingerprint recognition area is electrically connected to the touch lead; The second touch electrode is located in the second area, the second touch electrode overlaps the fingerprint recognition area in a direction perpendicular to the plane where the display panel is located, and the side of the second touch electrode away from the fingerprint recognition area is electrically connected to the touch lead.

11. The display panel according to claim 9, It is characterized in that The distance between the first lead area and the second lead area is greater than or equal to the maximum length of the fingerprint identification area in the second direction.

12. The display panel according to claim 9, It is characterized in that The touch lead includes a first touch lead and a second touch lead, the first touch lead and the second touch lead are located in the first lead area, and the first touch lead is located on a side of the second touch lead close to the first non-lead area, the length of the first touch lead is shorter than the length of the second touch lead, and part of the fingerprint identification area is located in the first lead area; And / or, the touch lead includes a third touch lead and a fourth touch lead, the third touch lead and the fourth touch lead are located in the second lead area, and the third touch lead is located on a side of the fourth touch lead close to the second non-lead area, the length of the third touch lead is less than the length of the fourth touch lead, and part of the fingerprint identification area is located in the second lead area.

13. The display panel according to claim 12, It is characterized in that In the first area, along the direction from the first lead area to the first non-lead area, the length of the touch lead decreases; And / or, in the second area, along the direction from the second lead area to the second non-lead area, the length of the touch lead decreases gradually.

14. The display panel according to claim 9, It is characterized in that The display area further includes at least one third area and at least one fourth area, the third area is located on a side of the first area away from the second area, and the fourth area is located on a side of the second area away from the first area; The third region includes a third lead region and a third non-lead region arranged along the second direction, the direction from the third lead region to the third non-lead region is the same as the direction from the first lead region to the first non-lead region, and the touch lead in the third region is located in the third lead region; The fourth region includes a fourth lead area and a fourth non-lead area arranged along the second direction, the direction in which the fourth lead area points to the fourth non-lead area is the same as the direction in which the second lead area points to the second non-lead area, and the touch lead in the fourth region is located in the fourth lead area.

15. The display panel according to claim 9, It is characterized in that The display area includes a first central axis, and the touch leads are symmetrically arranged along the first central axis.

16. The display panel according to claim 9, It is characterized in that The fingerprint identification area includes a second central axis, and the touch leads in the first lead area and the touch leads in the second lead area are symmetrically arranged along the second central axis.

17. The display panel according to claim 9, It is characterized in that The display panel comprises a first pixel group and a second pixel group alternately arranged in sequence along a second direction, the first pixel group comprises a first sub-pixel and a second sub-pixel alternately arranged along a third direction, the second pixel group comprises a plurality of third sub-pixels arranged along the third direction, the second direction intersects the third direction; and in the second direction, the third sub-pixels are arranged non-aligned with the first sub-pixels and the second sub-pixels respectively; The light-transmitting hole is located in the sub-pixel spacing area adjacent to the third sub-pixel in the second direction and the third direction; Alternatively, the light-transmitting hole is located in the sub-pixel spacing region adjacent to the third sub-pixel in a first direction and a fourth direction, the first direction intersects the second direction and the third direction respectively, and the fourth direction intersects the second direction and the third direction respectively.

18. The display panel according to claim 1, It is characterized in that The touch electrode includes a first hollow portion, and in a direction perpendicular to the plane where the display panel is located, the first hollow portion overlaps with the sub-pixel.

19. The display panel according to claim 1, It is characterized in that The touch electrodes include a first type of touch electrodes located in the fingerprint recognition area, and at least part of the first type of touch electrodes include a second hollow portion, and in a direction perpendicular to the plane where the display panel is located, the second hollow portion overlaps with the light transmission hole.

20. The display panel according to claim 1, It is characterized in that At least one of the touch control lines and at least one of the light-transmitting holes are respectively located in spacing areas on different sides of at least one of the sub-pixels.

21. The display panel according to claim 1, It is characterized in that The sub-pixels are arranged in an array along the first direction and the fourth direction, the touch lines extend along the third direction, and the light-transmitting holes are arranged along the third direction; Wherein, the third direction intersects with the first direction and the fourth direction respectively.

22. The display panel according to claim 21, It is characterized in that The touch line includes a plurality of first sub-segments and a plurality of second sub-segments; The first sub-segment extends along the first direction, and the second sub-segment extends along the fourth direction.

23. The display panel according to claim 22, It is characterized in that The first sub-segments and the second sub-segments are alternately connected to form the touch line in a folded line shape.

24. The display panel according to claim 1, It is characterized in that The touch control electrode is a self-capacitive touch control electrode.

25. A display device, It is characterized in that Comprising the display panel as claimed in any one of claims 1.

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