Display panel and display apparatus

Abstract

Disclosed in the embodiments of the present application are a display panel and a display apparatus. The display panel comprises a fingerprint sensing layer, a base substrate, a light-emitting layer, and a color film layer, which are sequentially arranged. The light-emitting layer comprises light-emitting parts and first light-shielding parts, and the first light-shielding parts are provided with first through holes; the color film layer comprises color resists and second light-shielding parts, and the second light-shielding parts are provided with second through holes. By configuring the first through holes and the second through holes to not overlap, the appearance of bright areas in the screen-off state can be avoided.

Description

Display panel and display device Technical Field

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

[0002] With the advancement of display technology, a variety of display devices with fingerprint recognition capabilities have emerged on the market, including mobile phones, tablets, and smart wearable devices. Users can use fingerprint recognition to unlock the display device, make payments, and perform other functions, simplifying the authorization verification process and improving the user experience. The basic principle of fingerprint recognition is that an external fingerprint recognition light source or an organic light-emitting element reused in the display panel generates light that reaches the contact surface between the finger and the display panel. This light is reflected by the fingerprint and then received by the fingerprint recognition element, which then forms an image based on the corresponding imaging principle to achieve fingerprint recognition. Organic light-emitting diodes (OLEDs) are increasingly popular due to their advantages such as self-luminous display, fast response time, high brightness, and wide viewing angle. However, when applying fingerprint recognition to OLED display panels without polarization technology, existing technologies often cause a bright area to appear on the display panel when the screen is off while unlocking the fingerprint. This affects the user experience. SUMMARY OF THE INVENTION

[0003] The embodiments of the present application provide a display panel and a display device, which can solve the problem that existing display panels cannot achieve under-screen fingerprint unlocking while avoiding the appearance of bright areas in the screen-off state.

[0004] An embodiment of the present application provides a display panel, comprising:

[0005] substrate;

[0006] a light-emitting layer disposed on the base substrate, the light-emitting layer comprising a plurality of light-emitting portions disposed at intervals, and a first light-shielding portion located between two adjacent light-emitting portions; a first through hole is formed in the first light-shielding portion;

[0007] a color filter layer disposed on a side of the light-emitting layer facing away from the base substrate, the color filter layer comprising a plurality of color resists spaced apart from each other and a second light-shielding portion disposed between two adjacent color resists; a second through hole being formed in the second light-shielding portion, an orthographic projection of the second through hole on the base substrate not overlapping with an orthographic projection of the first through hole on the base substrate;

[0008] The fingerprint sensing layer is arranged on a side of the base substrate away from the light-emitting layer, and is used to receive the reflected light emitted by the light-emitting portion and then reflected by the fingerprint and passing through the second through hole and the first through hole in sequence.

[0009] Accordingly, an embodiment of the present application provides a display device, comprising the display panel described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0011] FIG1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0012] FIG2 is a schematic diagram of an enlarged structure of area A in FIG1 provided in an embodiment of the present application;

[0013] FIG3 is a schematic structural diagram of a display device provided in an embodiment of the present application.

[0014] Description of reference numerals:

[0015] 10. Display device;

[0016] 100, display panel; 110, base substrate; 120, array layer; 130, light-emitting layer; 131, light-emitting portion; 132, first light-shielding portion; 1321, first through-hole; 140, anode layer; 150, light-emitting common layer; 160, cathode layer; 170, encapsulation layer; 180, touch layer; 190, first optical film layer; 191, third through-hole; 1911, second opening; 1912, third opening; 192, first interface; 193, second interface; 200, color filter layer; 201, color resist; 202, second light-shielding portion; 203, second through-hole; 204, first opening; 210, second optical film layer; 220, cover layer; 230, fingerprint sensing layer; 240, adhesive layer;

[0017] 300, control circuit;

[0018] 400, housing;

[0019] 500, fingerprint. Modes for Carrying Out the Invention

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0021] The embodiments of the present application provide a display panel and a display device, which are described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments.

[0022] First, an embodiment of the present application provides a display panel. As shown in FIG1 , the display panel 100 includes a base substrate 110. The base substrate 110 serves as a supporting structure for the display panel 100 and is used to support other functional structural layers disposed on the base substrate 110 to ensure the overall structural stability of the display panel 100. The base substrate 110 may be a glass substrate or a substrate of other materials, and is not particularly limited herein.

[0023] The display panel 100 includes a light-emitting layer 130 disposed on a substrate 110. The light-emitting layer 130 includes a plurality of spaced-apart light-emitting portions 131 and a first light-shielding portion 132 located between two adjacent light-emitting portions 131. The light-emitting portions 131 serve as the light-emitting units of the display panel 100. By controlling the light-emitting modes of the light-emitting portions 131, the display image of the display panel 100 can be adjusted. The first light-shielding portion 132 prevents optical crosstalk between adjacent light-emitting portions 131 and absorbs ambient light or unwanted reflected light, thereby ensuring the display quality of the display panel 100.

[0024] 1 and 2 , a first through hole 1321 is provided on the first light shielding portion 132 , so that light emitted by the light emitting portion 131 can pass through the light emitting layer 130 smoothly through the first through hole 1321 after reflection, thereby facilitating the transmission of optical signals within the display panel 100 .

[0025] The display panel 100 includes a color filter layer 200, which is arranged on the side of the light-emitting layer 130 away from the base substrate 110. The color filter layer 200 includes a plurality of spaced color resists 201 and a second light-shielding portion 202 arranged between two adjacent color resists 201. The color resists 201 are arranged corresponding to the light-emitting portion 131, that is, the display panel 100 in the embodiment of the present application adopts a polarizer-free technology.

[0026] In the embodiment of the present application, the color resist 201 includes a red color resist, a green color resist and a blue color resist, and the color resist 201 can act as a filter to allow light of corresponding colors to pass through; similarly, the light-emitting portion 131 includes a red light-emitting portion, a green light-emitting portion and a blue light-emitting portion, and is respectively arranged corresponding to the color resist 201 of the corresponding color, that is, the second light-shielding portion 202 is arranged corresponding to the first light-shielding portion 132, that is, the second light-shielding portion 202 corresponds to the first light-shielding portion 132 in the thickness direction of the display panel 100, so as to avoid color crosstalk between the light emitted by adjacent light-emitting portions 131, thereby affecting the display effect of the display panel 100.

[0027] The second light shielding portion 202 is provided with a second through hole 203, so that light emitted by the light-emitting portion 131 can, after reflection, pass through the second through hole 203 and the first through hole 1321 in sequence, thereby facilitating the transmission of optical signals within the display panel 100. Furthermore, the orthographic projection of the second through hole 203 on the base substrate 110 does not overlap with the orthographic projection of the first through hole 1321 on the base substrate 110. That is, the second through hole 203 and the first through hole 1321 are offset in the thickness direction of the display panel 100 and do not overlap at all. This allows the first light shielding portion 132 and the second light shielding portion 202 to form complementary light shielding at positions corresponding to the first through hole 1321 and the second through hole 203, thereby preventing external ambient light from entering the interior of the display panel 100 through the first through hole 1321 and the second through hole 203 when the display panel 100 is off, thereby preventing the formation of bright areas and affecting the user experience of the display panel 100.

[0028] It should be noted that the orthographic projection of the first light shading portion 132 on the base substrate 110 covers the orthographic projection of the second through hole 203 on the base substrate 110, and the orthographic projection of the second light shading portion 202 on the base substrate 110 covers the orthographic projection of the first through hole 1321 on the base substrate 110, so as to further realize the complementary shading of the first light shading portion 132 and the second light shading portion 202, and avoid the appearance of bright areas when the display panel 100 is in the off state.

[0029] The display panel 100 includes a fingerprint sensing layer 230, which is arranged on the side of the base substrate 110 away from the light-emitting layer 130, that is, the fingerprint sensing layer 230 is arranged on the backlight side of the light-emitting layer 130; the fingerprint sensing layer 230 is used to receive the light emitted by the light-emitting portion 131 and then reflected by the fingerprint 500 and pass through the second through hole 203 and the first through hole 1321 in sequence, that is, the fingerprint sensing layer 230 is used to receive the fingerprint 500 information to realize the fingerprint unlocking function of the display panel 100.

[0030] The fingerprint sensing layer 230 can be bonded to the base substrate 110 via an adhesive layer 240, facilitating flexible installation of the fingerprint sensing layer 230. The adhesive layer 240 can be made of a light-transmitting material, or a hole can be directly provided at a location corresponding to the sensing area of ​​the fingerprint sensing layer 230. This allows light emitted by the light-emitting portion 131, after being reflected by the fingerprint 500, to pass through the second through hole 203 and the first through hole 1321 in sequence and be received by the fingerprint sensing layer 230, thereby realizing the fingerprint unlocking function of the display panel 100.

[0031] It should be noted that a cover layer 220 is provided on the side of the color filter layer 200 facing away from the light-emitting layer 130 to protect functional structural layers such as the color filter layer 200 and the light-emitting layer 130. During fingerprint unlocking, a human finger contacts the cover layer 220, and the fingerprint 500 contacts the side of the cover layer 220 facing away from the color filter layer 200. Light emitted by the light-emitting portion 131 passes through the corresponding color resist 201 and is transmitted to the contact surface between the cover layer 220 and the fingerprint 500. It is then reflected by this contact surface and sequentially passes through the second through hole 203 in the second light-shielding portion 202 and the first through hole 1321 in the first light-shielding portion 132. It is then received by the fingerprint sensing layer 230, which then unlocks the device based on the received optical information.

[0032] That is to say, when designing the relative positions of the first through hole 1321 and the second through hole 203, in addition to ensuring the misalignment of the second through hole 203 and the first through hole 1321 in the thickness direction of the display panel 100, it is also necessary to make the relative positions of the first through hole 1321 and the second through hole 203 satisfy the reflection law of the light emitted by the light-emitting part 131 to meet the fingerprint unlocking function of the display panel 100.

[0033] In the embodiment of the present application, the display panel 100 includes a base substrate 110, a light-emitting layer 130, a color filter layer 200, and a fingerprint sensing layer 230. The light-emitting layer 130 and the color filter layer 200 are sequentially arranged on one side of the base substrate 110, and the fingerprint sensing layer 230 is arranged on the other side of the base substrate 110. The light-emitting layer 130 includes a plurality of light-emitting portions 131 arranged at intervals, and a first light-shielding portion 132 located between two adjacent light-emitting portions 131. The first light-shielding portion 132 is provided with a first through hole 1321. The color filter layer 200 includes a plurality of light-emitting portions 131 arranged at intervals. The color resist 201 is provided, and the second light shielding portion 202 is provided between two adjacent color resists 201. The second light shielding portion 202 is provided corresponding to the first light shielding portion 132. The second light shielding portion 202 is provided with a second through hole 203. The orthographic projection of the second through hole 203 on the base substrate 110 does not overlap with the orthographic projection of the first through hole 1321 on the base substrate 110. The fingerprint sensing layer 230 is used to receive the light emitted by the light emitting portion 131 and the reflected light that passes through the second through hole 203 and the first through hole 1321 in sequence after being reflected by the fingerprint 500. The present application sets the first through hole 1321 and the second through hole 203 to not overlap, and the light emitted by the light emitting portion 131 can be received by the fingerprint sensing layer 230 through the first through hole 1321 and the second through hole 203 after being reflected. This can meet the fingerprint unlocking requirements while avoiding the appearance of bright areas on the display panel 100 when the screen is off.

[0034] Optionally, as shown in Figure 2, at least two first through holes 1321 are provided on the first light shielding portion 132, and the orthographic projection of the second through hole 203 on the base substrate 110 is located between the orthographic projections of the two first through holes 1321 on the base substrate 110, that is, in the thickness direction of the display panel 100, the first through holes 1321 are located on opposite sides of the second through hole 203, so that the light emitted from the light-emitting portion 131 in different directions can smoothly pass through the second through hole 203 and the corresponding first through hole 1321 after reflection, so as to improve the accuracy and sensitivity of fingerprint unlocking of the display panel 100.

[0035] In some embodiments, a plurality of first through holes 1321 are provided on the first light shielding portion 132, and the orthographic projections of the plurality of first through holes 1321 on the base substrate 110 are symmetrically distributed relative to the orthographic projections of the second through holes 203 on the base substrate 110, that is, in the thickness direction of the display panel 100, the first through holes 1321 are uniformly distributed relative to the second through holes 203, so that light emitted from the light-emitting portion 131 in different directions can be reflected and pass through the second through holes 203, and then pass through the corresponding first through holes 1321 evenly, so as to improve the uniformity of the optical signals received by different areas of the fingerprint sensing layer 230, thereby helping to improve the efficiency of fingerprint unlocking of the display panel 100.

[0036] Optionally, as shown in Figure 2, the display panel 100 also includes a first optical film layer 190 and a second optical film layer 210, the first optical film layer 190 is located on the side of the color film layer 200 facing the light-emitting layer 130, and the second optical film layer 210 is located on the side of the color film layer 200 away from the light-emitting layer 130, that is, the first optical film layer 190 and the second optical film layer 210 are located on opposite sides of the color film layer 200.

[0037] A third through hole 191 is provided on the first optical film layer 190 at a position corresponding to the second through hole 203, and the second optical film layer 210 fills the second through hole 203 and the third through hole 191. The second optical film layer 210 and the side of the first optical film layer 190 facing the color film layer 200 form a first interface 192, and the second optical film layer 210 and the side wall of the third through hole 191 form a second interface 193, that is, the first interface 192 is a horizontal interface, and the second interface 193 is an inclined interface.

[0038] The refractive index of the second optical film layer 210 is lower than that of the first optical film layer 190, so that the light emitted by the light-emitting portion 131 is reflected by the fingerprint 500, passes through the first interface 192, and is reflected by the second interface 193 before passing through the first through-hole 1321. In other words, because the refractive index of the second optical film layer 210 is lower than that of the first optical film layer 190, and even much lower than that of the first optical film layer 190, the light emitted by the light-emitting portion 131 is reflected by the fingerprint 500, enters the second optical film layer 210, passes through the second through-hole 203, reaches the first interface 192, and then enters the first optical film layer 190 from the second optical film layer 210 through the first interface 192. When the light reaches the second interface 193, it is totally reflected at the second interface 193, so that the reflected light passes through the first through-hole 1321 in the first light-shielding portion 132 and is received by the fingerprint sensing layer 230.

[0039] In the embodiment of the present application, by providing the first optical film layer 190 and the second optical film layer 210 and utilizing the total reflection effect of the second interface 193 formed by the first optical film layer 190 and the second optical film layer 210, more reflected light can pass through the second through hole 203 and then smoothly pass through the first through hole 1321, rather than being directly absorbed by the first light-shielding portion 132, thereby improving the utilization rate of the reflected light and further improving the efficiency of fingerprint unlocking of the display panel 100.

[0040] Among them, the orthographic projection of the third through hole 191 on the base substrate 110 does not overlap with the orthographic projection of the first through hole 1321 on the base substrate 110, that is, the third through hole 191 and the first through hole 1321 are staggered in the thickness direction of the display panel 100 and do not overlap at all, and the third through hole 191 and the second through hole 203 are correspondingly arranged and interconnected, so that the first light-shielding portion 132 and the second light-shielding portion 202 can still form a complementary light-shielding portion, thereby avoiding the external ambient light from entering the interior of the display panel 100 through the first through hole 1321, the second through hole 203 and the third through hole 191 when the display panel 100 is off, thereby forming a bright area and affecting the user experience of the display panel 100.

[0041] Optionally, as shown in FIG2 , a first opening 204 is formed on a side of the second through hole 203 facing the third through hole 191, a second opening 1911 is formed on a side of the third through hole 191 facing the second through hole 203, and a third opening 1912 is formed on a side of the third through hole 191 facing away from the second through hole 203. The opening area of ​​the second opening 1911 is smaller than the opening area of ​​the first opening 204. That is, when the second opening 1911 and the first opening 204 are circular, the diameter of the second opening 1911 is smaller than the diameter of the first opening 204, so that reflected light can enter the first optical film layer 190 from the second optical film layer 210 through the first interface 192.

[0042] At the same time, the opening area of ​​the third opening 1912 is less than or equal to the opening area of ​​the first opening 204, and the opening area of ​​the third opening 1912 is greater than or equal to the opening area of ​​the second opening 1911, that is, when the third opening 1912 and the first opening 204 are circular, the diameter of the third opening 1912 is less than or equal to the diameter of the first opening 204, and the diameter of the third opening 1912 is greater than or equal to the diameter of the second opening 1911, that is, the orthographic projection of the second through hole 203 on the base substrate 110 covers the orthographic projection of the third through hole 191 on the base substrate 110.

[0043] That is to say, the second interface 193 is perpendicular to or at an acute angle to the first interface 192, that is, the cross-section of the third through hole 191 is a trapezoidal structure. This structural design helps the reflected light to pass directly through the first interface 192 and the first optical film layer 190 to be received by the fingerprint sensing layer 230, or to be received by the fingerprint sensing layer 230 through the total reflection effect of the second interface 193, thereby further improving the utilization rate of the reflected light and improving the efficiency of fingerprint unlocking of the display panel 100.

[0044] In some embodiments, the second interface 193 forms an angle with the first interface 192 that is greater than or equal to 50° and less than or equal to 90°. If the angle between the second interface 193 and the first interface 192 is too large, light reflected from the second interface 193 may directly enter the first light shielding portion 132 directly opposite the second through hole 203 and be absorbed. If the angle between the second interface 193 and the first interface 192 is too small, light reflected from the second interface 193 may deviate from the first through hole 1321 in another direction and fail to be received by the fingerprint sensing layer 230.

[0045] During the actual production process, the angle between the second interface 193 and the first interface 192 can be set to 50°, 60°, 70°, 80° or 90°, etc. It only needs to ensure that the setting of the angle can improve the utilization rate of the reflected light and improve the efficiency of fingerprint unlocking of the display panel 100. There is no special restriction here.

[0046] In other embodiments, the difference between the refractive index of the first optical film layer 190 and the refractive index of the second optical film layer 210 is greater than or equal to 0.1 and less than or equal to 0.4. If the difference between the refractive index of the first optical film layer 190 and the refractive index of the second optical film layer 210 is too small, total internal reflection of light at the second interface 193 cannot be achieved; if the difference between the refractive index of the first optical film layer 190 and the refractive index of the second optical film layer 210 is too large, it is not conducive to the selection of the first optical film layer 190 and the second optical film layer 210, and the production cost of the display panel 100 is increased.

[0047] In the actual production process, the difference between the refractive index of the first optical film layer 190 and the refractive index of the second optical film layer 210 can be set to 0.1, 0.2, 0.3 or 0.4, etc., as long as it is ensured that the light can be fully reflected at the second interface 193. There is no special restriction here.

[0048] In some other embodiments, the orthographic projections of the first through hole 1321, the second through hole 203 and the third through hole 191 on the base substrate 110 are located within the orthographic projection of the fingerprint sensing layer 230 on the base substrate 110, that is, the first through hole 1321, the second through hole 203 and the third through hole 191 correspond to the setting position of the fingerprint sensing layer 230, that is, in the thickness direction of the display panel 100, only at the position where the fingerprint sensing layer 230 is provided, the corresponding first light shielding portion 132, the second light shielding portion 202 and the first optical film layer 190 are provided with the first through hole 1321, the second through hole 203 and the third through hole 191, so that the light emitted by the light-emitting portion 131 can be fully received by the fingerprint sensing layer 230 after being reflected by the fingerprint 500, and will not be directly emitted from other areas, thereby ensuring the normal use of the display panel 100.

[0049] Optionally, the display panel 100 also includes an array layer 120 and an anode layer 140 arranged between the base substrate 110 and the light-emitting layer 130, the array layer 120 includes a plurality of thin film transistors, the anode layer 140 includes a plurality of anodes, the plurality of thin film transistors and the plurality of anodes correspond one-to-one to the plurality of light-emitting portions 131, the anode is located between two adjacent first light-shielding portions 132, and the thin film transistors are electrically connected to the corresponding anodes to control the conduction of the signal on the corresponding anode, thereby controlling the corresponding light-emitting portion 131 to emit light.

[0050] Between the light-emitting layer 130 and the first optical film layer 190, a light-emitting common layer 150, a cathode layer 160, an encapsulation layer 170, and a touch layer 180 are sequentially arranged in a direction away from the base substrate 110. The light-emitting common layer 150 is used to improve the charge conduction between the light-emitting portion 131 and the cathode layer 160. The cathode layer 160 and the anode layer 140 jointly control the light emission of the corresponding light-emitting portion 131 to regulate the display mode of the display panel 100. The encapsulation layer 170 is used to encapsulate and protect the functional structural layers of the display panel 100, such as the light-emitting layer 130 and the array layer 120, to prevent air or moisture from the external environment from invading the interior of the display panel 100 and causing damage to the light-emitting layer 130 and other structures, thereby affecting the normal use of the display panel 100.

[0051] Among them, the touch layer 180 is provided with a touch pattern for realizing the touch function of the display panel 100. Specifically, the touch layer 180 can adopt a self-capacitance method or a mutual capacitance method. The touch pattern on the touch layer 180 avoids the second through hole 203 on the color film layer 200 and the third through hole 191 on the first optical film layer 190 to avoid interference with light transmission during the fingerprint unlocking process. At the same time, it can also avoid the touch pattern being visible in the non-display state, thereby affecting the user experience of the display panel 100.

[0052] Optionally, in some embodiments of the present application, at least two first through holes are formed on the first light shielding portion, and the orthographic projection of the second through hole on the base substrate is located between the orthographic projections of the two first through holes on the base substrate.

[0053] Optionally, in some embodiments of the present application, a plurality of first through holes are provided on the first light shielding portion, and the orthographic projections of the plurality of first through holes on the base substrate are symmetrically distributed with respect to the orthographic projections of the second through holes on the base substrate.

[0054] Optionally, in some embodiments of the present application, the color resist includes red color resist, green color resist and blue color resist, the light-emitting portion includes a red light-emitting portion, a green light-emitting portion and a blue light-emitting portion, and the red light-emitting portion, the green light-emitting portion and the blue light-emitting portion are respectively arranged to correspond to the red color resist, the green color resist and the blue color resist.

[0055] Optionally, in some embodiments of the present application, in the thickness direction of the display panel, the first light shielding portion and the second light shielding portion are arranged correspondingly.

[0056] Optionally, in some embodiments of the present application, the orthographic projection of the first light shielding portion on the base substrate covers the orthographic projection of the second through hole on the base substrate.

[0057] Optionally, in some embodiments of the present application, the orthographic projection of the second light shielding portion on the base substrate covers the orthographic projection of the first through hole on the base substrate.

[0058] Optionally, in some embodiments of the present application, the display panel includes an adhesive layer, the fingerprint sensing layer is adhered to the base substrate through the adhesive layer, and the adhesive layer is made of a light-transmitting material.

[0059] Optionally, in some embodiments of the present application, the display panel includes an adhesive layer, the fingerprint sensing layer is adhered to the base substrate through the adhesive layer, and an opening is formed on the adhesive layer at a position corresponding to a sensing area of ​​the fingerprint sensing layer.

[0060] Optionally, in some embodiments of the present application, the display panel includes:

[0061] a first optical film layer, located on a side of the color filter layer facing the light-emitting layer, and a third through hole is formed on the first optical film layer at a position corresponding to the second through hole;

[0062] a second optical film layer, located on a side of the color filter layer facing away from the light-emitting layer, the second optical film layer filling the second through hole and the third through hole; the second optical film layer and a side of the first optical film layer facing the color filter layer form a first interface, and the second optical film layer and a sidewall of the third through hole form a second interface;

[0063] The refractive index of the second optical film layer is smaller than that of the first optical film layer, so that the light emitted by the light-emitting portion passes through the first interface after being reflected by the fingerprint, and passes through the first through hole after being reflected by the second interface.

[0064] Optionally, in some embodiments of the present application, the orthographic projection of the third through hole on the base substrate does not overlap with the orthographic projection of the first through hole on the base substrate.

[0065] Optionally, in some embodiments of the present application, the second through hole forms a first opening on the side facing the third through hole, the third through hole forms a second opening on the side facing the second through hole, and the third through hole forms a third opening on the side away from the second through hole; the opening area of ​​the second opening is smaller than the opening area of ​​the first opening, the opening area of ​​the third opening is smaller than or equal to the opening area of ​​the first opening, and the opening area of ​​the third opening is greater than or equal to the opening area of ​​the second opening.

[0066] Optionally, in some embodiments of the present application, the cross-section of the third through hole is trapezoidal.

[0067] Optionally, in some embodiments of the present application, the second interface forms an angle with the first interface; the angle is greater than or equal to 50° and less than or equal to 90°.

[0068] Optionally, in some embodiments of the present application, the difference between the refractive index of the first optical film layer and the refractive index of the second optical film layer is greater than or equal to 0.1 and less than or equal to 0.4.

[0069] Optionally, in some embodiments of the present application, the orthographic projections of the first through hole, the second through hole, and the third through hole on the base substrate are located within the orthographic projection of the fingerprint sensing layer on the base substrate.

[0070] Optionally, in some embodiments of the present application, the display panel further includes an array layer and an anode layer arranged between the base substrate and the light-emitting layer, the array layer includes a plurality of thin film transistors, the anode layer includes a plurality of anodes, the plurality of thin film transistors and the plurality of anodes correspond one-to-one to the plurality of light-emitting portions, the anode is located between two adjacent first light-shielding portions, and the thin film transistors are electrically connected to the corresponding anodes.

[0071] Optionally, in some embodiments of the present application, the display panel further includes a light-emitting common layer, a cathode layer, an encapsulation layer and a touch layer, and the light-emitting common layer, the cathode layer, the encapsulation layer and the touch layer are sequentially arranged between the light-emitting layer and the first optical film layer in a direction away from the base substrate.

[0072] Optionally, in some embodiments of the present application, a touch pattern is provided on the touch layer, and in the thickness direction of the display panel, the touch pattern is staggered with the second through hole and the third through hole.

[0073] In the embodiment of the present application, the display panel includes a base substrate, a light-emitting layer, a color filter layer and a fingerprint sensing layer. The light-emitting layer and the color filter layer are sequentially arranged on one side of the base substrate, and the fingerprint sensing layer is arranged on the other side of the base substrate. The light-emitting layer includes a plurality of light-emitting portions arranged at intervals, and a first light-shielding portion located between two adjacent light-emitting portions, and a first through-hole is provided on the first light-shielding portion. The color filter layer includes a plurality of color resists arranged at intervals, and a second light-shielding portion located between two adjacent color resists, and a second through-hole is provided on the second light-shielding portion. The orthographic projection of the second through-hole on the base substrate does not overlap with the orthographic projection of the first through-hole on the base substrate. The fingerprint sensing layer is used to receive the light emitted by the light-emitting portion and the reflected light that passes through the second through-hole and the first through-hole in sequence after being reflected by the fingerprint. The present application sets the first through-hole and the second through-hole to be non-overlapping, and the light emitted by the light-emitting portion can be received by the fingerprint sensing layer through the first through-hole and the second through-hole after reflection, so that while meeting the fingerprint unlocking requirements, it can avoid the display panel from having a bright area when the screen is off.

[0074] Secondly, an embodiment of the present application also provides a display device, which includes a display panel. The specific structure of the display panel refers to the above embodiment. Since this display device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0075] As shown in FIG3 , the display device 10 includes a display panel 100, a control circuit 300, and a housing 400. The housing 400 is connected to the display panel 100 to support and fix the display panel 100. The control circuit 300 is disposed within the housing 400 and is electrically connected to the display panel 100 to control the display panel 100 to display images.

[0076] The display panel 100 can be fixed to the housing 400 to form a whole with the housing 400. The display panel 100 and the housing 400 form a sealed space for accommodating the control circuit 300. The control circuit 300 can be the mainboard of the display device 10. At the same time, the control circuit 300 can also integrate one or more functional components such as a battery, an antenna structure, a microphone, a speaker, a headphone jack, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, and a processor, so that the display device 10 can be adapted to various application fields.

[0077] Specifically, the display panel 100 includes a base substrate 110, a light-emitting layer 130, a color filter layer 200, and a fingerprint sensing layer 230. The light-emitting layer 130 and the color filter layer 200 are sequentially arranged on one side of the base substrate 110, and the fingerprint sensing layer 230 is arranged on the other side of the base substrate 110. The light-emitting layer 130 includes a plurality of light-emitting portions 131 arranged at intervals, and a first light-shielding portion 132 located between two adjacent light-emitting portions 131. The first light-shielding portion 132 is provided with a first through hole 1321. The color filter layer 200 includes a plurality of light-emitting portions 131 arranged at intervals. The color resist 201 and the second light shielding portion 202 provided between two adjacent color resists 201 are provided. The second light shielding portion 202 is provided corresponding to the first light shielding portion 132. A second through hole 203 is provided on the second light shielding portion 202. The orthographic projection of the second through hole 203 on the base substrate 110 does not overlap with the orthographic projection of the first through hole 1321 on the base substrate 110. The fingerprint sensing layer 230 is used to receive the light emitted by the light emitting portion 131 and the reflected light that passes through the second through hole 203 and the first through hole 1321 in sequence after being reflected by the fingerprint 500. The present application sets the first through hole 1321 and the second through hole 203 to be non-overlapping, and the light emitted by the light emitting portion 131 can be received by the fingerprint sensing layer 230 through the first through hole 1321 and the second through hole 203 after being reflected. This allows the display panel 100 to avoid the appearance of bright areas when the screen is off while meeting the fingerprint unlocking requirements.

[0078] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, wherein: include: substrate substrate; A light-emitting layer is arranged on the base substrate, the light-emitting layer comprises a plurality of light-emitting portions arranged at intervals, and a first light-shielding portion located between two adjacent light-emitting portions; a first through hole is formed on the first light-shielding portion; A color filter layer is arranged on a side of the light-emitting layer away from the base substrate, the color filter layer comprises a plurality of color resists arranged at intervals, and a second light shielding portion arranged between two adjacent color resists; a second through hole is formed on the second light shielding portion, and an orthographic projection of the second through hole on the base substrate does not overlap with an orthographic projection of the first through hole on the base substrate; The fingerprint sensing layer is arranged on a side of the base substrate away from the light emitting layer, and is used to receive the reflected light emitted by the light emitting part and then passing through the second through hole and the first through hole in sequence after being reflected by the fingerprint.

2. The display panel according to claim 1, wherein: At least two first through holes are formed on the first light shielding portion, and the orthographic projection of the second through hole on the base substrate is located between the orthographic projections of the two first through holes on the base substrate.

3. The display panel according to claim 1, wherein: The first light shielding portion is provided with a plurality of first through holes, and the orthographic projections of the plurality of first through holes on the base substrate are symmetrically distributed with respect to the orthographic projections of the second through holes on the base substrate.

4. The display panel according to claim 1, wherein: The color resist includes red color resist, green color resist and blue color resist, the light emitting part includes red light emitting part, green light emitting part and blue light emitting part, and the red light emitting part, the green light emitting part and the blue light emitting part are respectively arranged corresponding to the red color resist, the green color resist and the blue color resist.

5. The display panel according to claim 1, wherein: In the thickness direction of the display panel, the first light shielding portion and the second light shielding portion are arranged correspondingly.

6. The display panel according to claim 1, wherein: The orthographic projection of the first light shielding portion on the base substrate covers the orthographic projection of the second through hole on the base substrate.

7. The display panel according to claim 1, wherein: The orthographic projection of the second light shielding portion on the base substrate covers the orthographic projection of the first through hole on the base substrate.

8. The display panel according to claim 1, wherein: The display panel comprises an adhesive layer, the fingerprint sensing layer is adhered to the base substrate via the adhesive layer, and the adhesive layer is made of a light-transmitting material.

9. The display panel according to claim 1, wherein: The display panel comprises an adhesive layer, the fingerprint sensing layer is adhered to the base substrate via the adhesive layer, and an opening is formed on the adhesive layer at a position corresponding to a sensing area of ​​the fingerprint sensing layer.

10. The display panel according to claim 1, wherein: The display panel comprises: A first optical film layer is located on a side of the color film layer facing the light-emitting layer, and a third through hole is formed on the first optical film layer at a position corresponding to the second through hole; A second optical film layer is located on a side of the color filter layer away from the light-emitting layer, and the second optical film layer fills the second through hole and the third through hole; the second optical film layer and a side of the first optical film layer facing the color filter layer form a first interface, and the second optical film layer and a side wall of the third through hole form a second interface; The refractive index of the second optical film layer is smaller than that of the first optical film layer, so that the light emitted by the light-emitting portion passes through the first interface after being reflected by the fingerprint, and passes through the first through hole after being reflected by the second interface.

11. The display panel according to claim 10, wherein: An orthographic projection of the third through hole on the base substrate does not overlap with an orthographic projection of the first through hole on the base substrate.

12. The display panel according to claim 10, wherein: A first opening is formed on a side of the second through hole facing the third through hole, a second opening is formed on a side of the third through hole facing the second through hole, and a third opening is formed on a side of the third through hole away from the second through hole; an opening area of ​​the second opening is smaller than an opening area of ​​the first opening, an opening area of ​​the third opening is smaller than or equal to an opening area of ​​the first opening, and an opening area of ​​the third opening is greater than or equal to an opening area of ​​the second opening.

13. The display panel according to claim 10, wherein: The cross section of the third through hole is trapezoidal.

14. The display panel according to claim 10, wherein: The second interface forms an angle with the first interface; the angle is greater than or equal to 50° and less than or equal to 90°.

15. The display panel according to claim 10, wherein: A difference between a refractive index of the first optical film layer and a refractive index of the second optical film layer is greater than or equal to 0.1 and less than or equal to 0.

4.

16. The display panel according to claim 10, wherein: The orthographic projections of the first through hole, the second through hole, and the third through hole on the base substrate are located within the orthographic projection of the fingerprint sensing layer on the base substrate.

17. The display panel according to claim 1, wherein: The display panel also includes an array layer and an anode layer arranged between the base substrate and the light-emitting layer, the array layer includes a plurality of thin film transistors, the anode layer includes a plurality of anodes, the plurality of thin film transistors and the plurality of anodes correspond one-to-one to the plurality of light-emitting portions, the anode is located between two adjacent first light-shielding portions, and the thin film transistors are electrically connected to the corresponding anodes.

18. The display panel according to claim 10, wherein: The display panel further includes a light-emitting common layer, a cathode layer, a packaging layer and a touch layer, wherein the light-emitting common layer, the cathode layer, the packaging layer and the touch layer are sequentially arranged between the light-emitting layer and the first optical film layer in a direction away from the base substrate.

19. The display panel according to claim 18, wherein: A touch pattern is disposed on the touch layer, and in the thickness direction of the display panel, the touch pattern is staggered with the second through hole and the third through hole.

20. A display device, wherein: Comprising the display panel according to claim 1.

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