OLED display module and display terminal

Abstract

The invention provides an OLED display module and a display terminal. The OLED display module comprises an array substrate, a light sensor arranged on the array substrate, a pixel layer, a color film layer comprising a plurality of color films, a first shading layer which is arranged in an interval area among the color films and comprises a first light hole, and a second shading layer which is arranged between the pixel layer and the color film layer and comprises a second light hole, comprising a first light hole, a second light hole, a light gathering layer of a first micro lens arranged in the first light hole, an array metal layer arranged between the array substrate and the pixel layer and comprising a third light hole, and the orthographic projections of the light sensor, the first light hole, the second light hole, the first micro lens and the third light hole on the array substrate at least partially coincide; according to the OLED display module, a polaroid can be omitted, the fingerprint recognition function can be achieved, the light path structure of the OLED display module is matched with the fingerprint recognition function, and the OLED display module has the good effects of preventing light leakage and reducing the influence of ambient light reflection.

Description

[0001] This application is a divisional application with an application date of November 25, 2021, application number 202111409500.7, and invention name “An OLED display module and display terminal”. Technical Field

[0002] The present application relates to the field of display technology, and in particular to an OLED display module and a display terminal. Background Art

[0003] In OLED display screens, a polarizer layer is generally used to eliminate the influence of ambient light. However, the use of a polarizer layer will increase the cost on the one hand and reduce the display brightness on the other. Based on this, a low-temperature color filter film technology has been developed in this field. On the one hand, a color filter film of the same color is made above the OLED pixel structure to reduce the reflection effect of the pixel electrode on the ambient light; on the other hand, a black matrix is ​​used to reduce the light leakage between OLED pixels, ensuring that the light emitted by OLED pixels is only emitted through the color filter of the same color, further reducing the influence of ambient light.

[0004] However, with the advancement of display technology, more and more additional functions such as fingerprint recognition, ambient light monitoring, heart rate monitoring and other modules are integrated into the display screen. These additional functional modules have put forward higher requirements on the optical path structure design of the display screen in terms of reducing the impact of ambient light. Summary of the invention

[0005] The present application provides an OLED display module and a display terminal to improve the technical problem that the additional functional modules of the current OLED display module have higher requirements on the optical path structure design in terms of reducing the influence of ambient light.

[0006] To solve the above technical problems, the technical solutions provided by this application are as follows:

[0007] The present application provides an OLED display module, comprising:

[0008] An array substrate;

[0009] A light sensor is disposed on the array substrate;

[0010] A pixel layer, disposed on the array substrate, comprising a plurality of sub-pixels arranged in an array;

[0011] A color filter layer is disposed on a side of the pixel layer away from the array substrate, and includes a plurality of color filter sheets arranged in an array, wherein the plurality of color filter sheets correspond one-to-one to the plurality of sub-pixels;

[0012] A first light shielding layer is disposed in the spacing area between the plurality of color filter sheets and includes at least one first light-transmitting hole; and

[0013] At least one second light shielding layer, disposed between the pixel layer and the color filter layer, comprising at least one second light-transmitting hole;

[0014] The orthographic projections of the light sensor, the first light-transmitting hole, and the second light-transmitting hole on the array substrate at least partially overlap.

[0015] In the OLED display module of the present application, the first light-transmitting hole includes at least one first light-transmitting area, and the second light-transmitting hole includes at least one second light-transmitting area;

[0016] The orthographic projections of the first light-transmitting area, the second light-transmitting area, and the light sensor on the array substrate at least partially overlap.

[0017] In the OLED display module of the present application, the OLED display module further includes a light-gathering layer, and the light-gathering layer includes at least one first microlens;

[0018] The first microlens is disposed in the first light-transmitting hole, and a size of the first microlens is smaller than or equal to an aperture of the first light-transmitting hole.

[0019] In the OLED display module of the present application, the OLED display module further includes a light-gathering layer, and the light-gathering layer includes at least one first microlens;

[0020] The first microlens is disposed between the first light shielding layer and the second light shielding layer, and the orthographic projection of the first microlens on the first light shielding layer at least partially overlaps with the first light-transmitting hole.

[0021] In the OLED display module of the present application, a boundary line of the orthographic projection of the first microlens on the second light shielding layer is located inside the second light shielding layer outside the second light-transmitting hole.

[0022] In the OLED display module of the present application, the light-collecting layer further includes a second microlens disposed between the pixel layer and the color filter layer;

[0023] The orthographic projection of the second microlens on the pixel layer at least partially overlaps with the sub-pixel.

[0024] In the OLED display module of the present application, the second microlens is arranged in the same layer as the first microlens.

[0025] In the OLED display module of the present application, the light-gathering layer and the second light-shielding layer are arranged in the same layer, and the light-gathering layer is located on a side of the second light-shielding layer away from the array substrate.

[0026] In the OLED display module of the present application, the OLED display module further comprises an array metal layer disposed between the array substrate and the pixel layer, and the light sensor is located on a side of the array metal layer close to the array substrate;

[0027] The array metal layer comprises a third light-transmitting hole, the orthographic projection of the third light-transmitting hole on the first light-shielding layer at least partially overlaps with the first light-transmitting hole, and the light sensor is arranged opposite to the third light-transmitting hole.

[0028] The present application also provides a display terminal, comprising a terminal body and the above-mentioned OLED display module, wherein the OLED display module is integrated with the terminal body.

[0029] Beneficial effects: This application eliminates the need for polarizers by setting a color film layer and a first light shielding layer in the OLED display module, thereby reducing light leakage between pixels, reducing the impact of ambient light, and reducing the thickness of the module; since a touch recognition module is also provided in the OLED display module, this application also sets a first light-transmitting hole on the first light-shielding layer, and makes the orthographic projection of the light sensor on the first light-shielding layer at least partially overlap with the first light-transmitting hole, so that when fingerprint recognition is performed, the light emitted by the pixel layer can reach the light sensor through the first light-transmitting hole after being reflected by the finger, thereby realizing the fingerprint recognition function. Through the above settings, this application can make the optical path structure of the OLED display module compatible with the fingerprint recognition function, and has good effects of preventing light leakage and reducing the impact of ambient light reflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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.

[0031] Figure 1 This is a schematic diagram of the first structure of the OLED display module described in this application;

[0032] Figure 2 This is a second structural schematic diagram of the OLED display module described in this application;

[0033] Figure 3 This is a third structural schematic diagram of the OLED display module described in this application;

[0034] Figure 4 This is a fourth structural schematic diagram of the OLED display module described in this application;

[0035] Figure 5This is a fifth structural schematic diagram of the OLED display module described in this application;

[0036] Figure 6 This is a sixth structural schematic diagram of the OLED display module described in this application;

[0037] Figure 7 This is a schematic diagram of the fingerprint recognition light path reflection of the OLED display module described in this application;

[0038] Figure 8 This is the seventh structural schematic diagram of the OLED display module described in this application.

[0039] Description of reference numerals:

[0040] Array substrate 100, light sensor 200, touch driver chip 210, pixel layer 300, sub-pixel 310, color filter layer 400, color filter sheet 410, first light shielding layer 500, first light transmission hole 510, first flat layer 610, second flat layer 620, encapsulation layer 630, touch panel 640, third flat layer 650, flexible cover layer 660, second light shielding layer 700, second light transmission hole 710, light focusing layer 800, first micro lens 810, second micro lens 820, array metal layer 900, third light transmission hole 910. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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 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 stated, the directional words such as "upper" and "lower" used 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; while "inside" and "outside" refer to the outline of the device.

[0042] The pixel electrode structure of the OLED display contains a metal electrode structure and metal circuit connection lines, which have a strong reflective effect on ambient light and greatly reduce the contrast. Therefore, a circular polarizer composed of a linear polarizer and a 1 / 4 wave plate is generally used to eliminate the influence of ambient light. However, the use of a circular polarizer will increase the cost on the one hand, and reduce the display brightness on the other. Based on this, a low-temperature color filter film technology has been developed in this field. On the one hand, a color filter film of the same color is made above the OLED pixel structure to reduce the reflection effect of the pixel electrode on the ambient light; on the other hand, a black matrix is ​​used to reduce the light leakage between OLED pixels, ensuring that the light emitted by the OLED pixels is only emitted through the color film of the same color, further reducing the influence of ambient light.

[0043] However, with the advancement of display technology, more and more additional functions such as fingerprint recognition, ambient light monitoring, heart rate monitoring and other modules are integrated into the display screen, among which optical fingerprint recognition has become a standard technology for OLED. These additional functions such as optical identification technology put forward higher requirements on the optical path structure design of the display screen in terms of reducing the impact of ambient light. Based on the above technical problems, this application proposes the following solution.

[0044] See also Figures 1 to 8 , the present application provides an OLED display module, comprising:

[0045] An array substrate 100;

[0046] The light sensor 200 is disposed on the array substrate 100;

[0047] The pixel layer 300 is disposed on the array substrate 100 and includes a plurality of sub-pixels 310 arranged in an array;

[0048] The color filter layer 400 is disposed on a side of the pixel layer 300 away from the array substrate 100 , and includes a plurality of color filter sheets 410 arranged in an array, wherein the plurality of color filter sheets 410 correspond one-to-one to the plurality of sub-pixels 310 ;

[0049] A first light shielding layer 500, which is disposed in a spacing area between a plurality of color filter sheets 410, and includes at least one first light-transmitting hole 510; and

[0050] At least one second light shielding layer 700, wherein the second light shielding layer 700 is disposed between the pixel layer 300 and the color filter layer 400, and the second light shielding layer 700 includes at least one second light-transmitting hole 710;

[0051] The orthographic projections of the light sensor 200 , the first light-transmitting hole 510 , and the second light-transmitting hole 710 on the array substrate 100 at least partially overlap.

[0052] The present application provides a color filter layer 400 and a first light shielding layer 500 in the OLED display module to eliminate the need for a polarizer, thereby achieving the effects of reducing light leakage between pixels, reducing the impact of ambient light, and reducing the thickness of the module; since a touch recognition module is also provided in the OLED display module, the present application also provides a second light shielding layer 700, and provides a first light-transmitting hole 510 on the first light-shielding layer 500, and provides a second light-transmitting hole 710 on the second light-shielding layer 700, and makes the orthographic projections of the light sensor 200, the first light-transmitting hole 510, and the second light-transmitting hole 710 on the array substrate 100 at least partially overlap, so that when fingerprint recognition is performed, the first light-transmitting hole 510 and the second light-transmitting hole 710 form a collimating structure so that light passes through the first light-transmitting hole 510 and the second light-transmitting hole 710 to reach the light sensor 200, thereby realizing the fingerprint recognition function.

[0053] In this embodiment, a second light-shielding layer 700 is provided so that the ambient light can be further blocked by the second light-shielding layer 700 after being attenuated by the first light-shielding layer 500, thereby further reducing the impact of the ambient light. In addition, the two light-shielding layers can reduce the light intensity of the outgoing light of the pixel layer 300 passing through the first light-transmitting hole 510, thereby reducing contrast loss.

[0054] Through the above settings, the present application can make the optical path structure of the OLED display module compatible with the fingerprint recognition function, and has a good effect of preventing light leakage and reducing the influence of ambient light reflection.

[0055] The technical solution of the present application is now described in conjunction with specific embodiments.

[0056] In this embodiment, the array substrate 100 may include a substrate and a thin film transistor layer disposed on the substrate, and the substrate may be a glass substrate.

[0057] In this example, see Figure 1 , Figure 1 This is a first structural diagram of the OLED display module described in the present application. The light sensor 200 can be arranged on the side of the array substrate 100 away from the light-emitting surface of the OLED display module. At this time, the light sensor 200 is placed under the OLED display module in an external form, and the light sensor 200 is electrically connected to a touch driver chip 210.

[0058] In this example, see Figure 2 , Figure 21 is a second structural diagram of the OLED display module of the present application. The light sensor 200 can also be arranged on a side of the array substrate 100 close to the light emitting surface of the OLED display module. In this case, the light sensor 200 can be integrated into the driving circuit (such as placed in the thin film transistor layer) or integrated into other film layers of the OLED display module. For example, the light sensor 200 can also be integrated into the pixel layer 300 (see Figure 3 ). It should be noted that, when the light sensor 200 is integrated into a driving circuit, the display driver and the fingerprint driver can share a driving chip.

[0059] In this embodiment, by arranging the light sensor 200 on a side of the array substrate 100 close to the light emitting surface of the OLED display module, the light sensor 200 can be integrated with the film structure of the OLED display module, thereby facilitating reduction in the module thickness of the OLED display module. The overall thickness is lower, the integration is better, and more space can be saved for battery design and 5G / 6G antenna design.

[0060] In this embodiment, the plurality of sub-pixels 310 in the pixel layer 300 are arranged at intervals, and the sub-pixels 310 may include red sub-pixels (R), green sub-pixels (G) and blue sub-pixels (B), or the sub-pixels 310 may include red sub-pixels (R), green sub-pixels (G), blue sub-pixels (B) and white sub-pixels (W).

[0061] See also Figure 2 In this embodiment, the color filter sheet 410 may include a red color filter sheet, a green color filter sheet, a blue color filter sheet and a white color filter sheet, and the color of the color filter sheet 410 is consistent with the color of the sub-pixel 310 corresponding to it.

[0062] In this embodiment, the orthographic projection of the sub-pixel 310 on the color filter layer 400 is located in the color filter sheet 410 corresponding to the sub-pixel 310. Preferably, the area of ​​the color filter sheet 410 is larger than the area of ​​the sub-pixel 310 corresponding thereto, so that the light emitted by the sub-pixel 310 can pass through the color filter sheet 410 more fully, thereby improving display brightness and contrast.

[0063] In this embodiment, the first light shielding layer 500 may be a black matrix disposed in the spaced area between the plurality of color filter sheets 410, and the black matrix and the plurality of color filter sheets 410 are closely arranged. Alternatively, the first light shielding layer 500 may also be a black metal layer, and the black metal material may be Mo / MoO xEtc. In this embodiment, by providing the first light shielding layer 500, on the one hand, it can prevent or reduce the light emitted by the pixel layer 300 from being directly emitted through the interval of the color filter sheet 410, thereby avoiding or reducing the loss of display contrast; on the other hand, it can reduce the interference light (such as fingerprint reflection light or ambient light at a large angle) entering the light sensor 200, thereby improving the fingerprint recognition sensitivity.

[0064] In this embodiment, the orthographic projection of the light sensor 200 on the first light-shielding layer 500 can completely cover the first light-transmitting hole 510, so that the light reflected by the finger can be completely projected onto the light sensor 200 through the first light-transmitting hole 510, thereby improving the fingerprint recognition sensitivity.

[0065] See also Figure 3 , Figure 3 : is a third structural schematic diagram of the OLED display module described in the present application. In the OLED display module of the present application, the OLED display module may also include a first flat layer 610 arranged on the array substrate 100, a second flat layer 620 arranged on the first flat layer 610, an encapsulation layer 630 arranged on the second flat layer 620, a touch panel 640 arranged on the encapsulation layer 630, a third flat layer 650 arranged on the touch panel 640, and an optical adhesive layer or / and a flexible cover layer 660 arranged on the second flat layer 620.

[0066] In this embodiment, the pixel layer 300 and the second planar layer 620 may be disposed in the same layer, and the color filter layer 400 and the third planar layer 650 may be disposed in the same layer.

[0067] In this embodiment, the second planar layer 620 can be made of a film material that can transmit visible light and cut off infrared light, thereby reducing interference from ambient light.

[0068] See also Figure 3 and Figure 4 , Figure 4 This is a fourth structural schematic diagram of the OLED display module described in the present application. In the OLED display module of the present application, the first light-transmitting hole 510 includes at least one first light-transmitting area, and the second light-transmitting hole 710 includes at least one second light-transmitting area. The first light-transmitting area, the second light-transmitting area and the orthographic projection of the light sensor 200 on the array substrate at least partially overlap.

[0069] See also Figure 3In this embodiment, the first light-transmitting hole 510 may include a plurality of first light-transmitting areas, and the second light-transmitting hole 710 may include a plurality of second light-transmitting areas. At this time, the first light-transmitting hole 510 and the second light-transmitting hole 710 are porous vertical structures including a plurality of light-transmitting areas obtained through patterning.

[0070] See also Figure 4 In this embodiment, the first light-transmitting hole 510 may include only one first light-transmitting area, and the second light-transmitting hole 710 may include only one second light-transmitting area. At this time, the first light-transmitting hole 510 and the second light-transmitting hole 710 are complete single-hole structures, that is, at this time, the first light-transmitting area completely overlaps with the first light-transmitting hole 510, and the second light-transmitting area completely overlaps with the second light-transmitting hole 710.

[0071] In this embodiment, when the first light-transmitting hole 510 and the second light-transmitting hole 710 are single-hole structures, the aperture of the second light-transmitting hole 710 is smaller than the aperture of the first light-transmitting hole 510. Through the above arrangement, this embodiment allows the light reflected by the finger to reach the light sensor 200 through the second light-transmitting hole 710, and because the aperture of the second light-transmitting hole 710 is smaller, the second light-shielding layer 700 can further block ambient light from entering the interior of the OLED display module, further reducing the impact of ambient light.

[0072] See also Figure 4 In the OLED display module of the present application, the OLED display module may further include a light-gathering layer 800 , and the light-gathering layer 800 may include at least one first microlens 810 . The first microlens 810 may be disposed in the first light-transmitting hole 510 .

[0073] In this embodiment, the first microlens 810 may be disposed in the same layer as the color filter layer 400 and the third flat layer 650. The side of the first microlens 810 away from the pixel layer 300 may be configured as a smooth convex surface to achieve a better light focusing effect.

[0074] In this embodiment, the size of the first microlens 810 on the first light shielding layer 500 is smaller than or equal to the aperture of the first light-transmitting hole 510 , so that the first microlens 810 can fill the first light-transmitting hole 510 , thereby avoiding or significantly reducing light leakage at the position of the first light-transmitting hole 510 .

[0075] See also Figure 5 , Figure 5 810 is a fifth structural diagram of the OLED display module of the present application. In the OLED display module of the present application, the first microlens 810 may also be disposed between the first light shielding layer 500 and the second light shielding layer 700 (eg Figure 5 As shown, the first microlens 810 is arranged between the encapsulation layer 630 and the touch panel 640, and the area between the encapsulation layer 630 and the touch panel 640 except the first microlens 810 is filled with a flat layer material, and the orthographic projection of the first microlens 810 on the first light-shielding layer 500 at least partially overlaps with the first light-transmitting hole 510.

[0076] In this embodiment, a first microlens 810 is arranged between the first light-shielding layer 500 and the second light-shielding layer 700. On the one hand, the light reflected by the finger can be refracted to the light sensor 200 through the first microlens 810. On the other hand, the ambient light passing through the first light-transmitting hole 510 can be reflected back to the outside of the OLED display module by the smooth convex surface of the first microlens 810, thereby further reducing the ambient light entering the inside of the OLED display module.

[0077] See also Figure 5 In the OLED display module of the present application, the boundary line of the orthographic projection of the first microlens 810 on the second light shielding layer 700 is located inside the second light shielding layer 700 outside the second light-transmitting hole 710 .

[0078] In this embodiment, the diameter of the orthographic projection of the first microlens 810 on the second light shielding layer 700 is less than 30 micrometers. Through the above arrangement, this embodiment can make the ambient light reflected by the edge of the first microlens 810 emitted to the second light shielding layer 700, thereby further reducing the ambient light reaching the light sensor 200.

[0079] See also Figure 6 and Figure 7 , Figure 6 is a sixth structural schematic diagram of the OLED display module described in this application, Figure 7 It is a schematic diagram of the fingerprint recognition light path reflection of the OLED display module described in the present application. In the OLED display module of the present application, the focusing layer 800 also includes a second microlens 820 arranged between the pixel layer 300 and the color film layer 400. A plurality of second microlenses 820 can be provided, and the plurality of second microlenses 820 correspond one-to-one to the plurality of sub-pixels 310 in the pixel layer 300, so that the second microlens 820 can focus the light emitted by the sub-pixel 310 as much as possible onto the corresponding color film sheet 410, avoiding or reducing the large-angle light signal directly irradiating the first shading layer 500 or other colors of color films and being absorbed, thereby being able to further improve the display brightness on the basis of realizing fingerprint recognition.

[0080] In this embodiment, the second microlens 820 can be disposed in the same layer as any one of the pixel layer 300 and the color filter layer 400. The side of the second microlens 820 away from the pixel layer 300 can also be configured as a smooth convex surface to achieve a better light focusing effect.

[0081] In this embodiment, the orthographic projection of the second microlens 820 on the pixel layer 300 at least partially overlaps with the sub-pixel 310. Preferably, the orthographic projection of the second microlens 820 on the pixel layer 300 completely covers the corresponding sub-pixel 310, thereby achieving a more complete light focusing effect and a more obvious display brightness improvement effect.

[0082] See also Figure 6 In the OLED display module of the present application, the second microlens 820 can be arranged in the same layer as the first microlens 810. On the one hand, the number of film layers can be saved and the thickness of the OLED display module can be reduced. On the other hand, the first microlens 810 and the second microlens 820 can be manufactured in the same process, which simplifies the process and reduces the manufacturing time and cost.

[0083] In this embodiment, the first microlens 810 and the second microlens 820 can be disposed in the encapsulation layer 630 , or the encapsulation layer 630 can be used to directly manufacture the microlens structure, and then the gap can be filled with a planar layer material to simplify the manufacturing process.

[0084] See also Figure 8 , Figure 8 This is a seventh structural schematic diagram of the OLED display module described in the present application. In the OLED display module of the present application, the light-gathering layer 800 and the second light-shielding layer 700 are arranged in the same layer, and the light-gathering layer 800 is located on the side of the second light-shielding layer 700 away from the array substrate 100. In this embodiment, by arranging the light-gathering layer 800 on the side of the second light-shielding layer 700 away from the array substrate 100, the ambient light reflected by the edge of the first microlens 810 is blocked by the second light-shielding layer 700, thereby further reducing the ambient light from entering the interior of the OLED display module. In addition, by arranging the light-gathering layer 800 and the second light-shielding layer 700 in the same layer, the number of film layers of the OLED display module can be further reduced, thereby reducing the thickness of the OLED display module and achieving lightness and thinness.

[0085] See also Figure 8In the OLED display module of the present application, the OLED display module also includes an array metal layer 900 arranged between the array substrate 100 and the pixel layer 300, and the array metal layer 900 can be arranged on the same layer as the first flat layer 610, and the light sensor 200 is located on a side of the array metal layer 900 close to the array substrate 100.

[0086] In this embodiment, the array metal layer 900 may include metal electrodes corresponding one-to-one to the sub-pixels 310 in the pixel layer 300 , and may also include metal circuit connection lines for electrically connecting the metal electrodes with a driving circuit.

[0087] In this embodiment, the array metal layer 900 may include a third light-transmitting hole 910, the light sensor 200 is arranged opposite to the third light-transmitting hole 910, and the orthographic projection of the third light-transmitting hole 910 on the first light-shielding layer 500 at least partially overlaps with the first light-transmitting hole 510, so that the light signal reflected by the finger can reach the light sensor 200 through the third light-transmitting hole 910.

[0088] In this embodiment, the third light-transmitting hole 910 may include at least one third light-transmitting area.

[0089] In this embodiment, the third light transmission hole 910 may include only one third light transmission area. In this case, the third light transmission hole 910 is a complete single hole structure, that is, the third light transmission area completely overlaps with the third light transmission hole.

[0090] In this embodiment, the third light-transmitting hole 910 may also include a plurality of third light-transmitting areas. In this case, the third light-transmitting hole 910 is patterned and forms a multi-hole vertical structure with the first light-transmitting hole 510 and the second light-transmitting hole 710 .

[0091] In this embodiment, the orthographic projection of the third light-transmitting hole 910 on the light sensor 200 is located inside the light sensor 200. Preferably, the aperture of the third light-transmitting hole 910 is smaller than the plane size of the light sensor 200, so that the array metal layer 900 can act as a reflective layer to reflect the light emitted by the sub-pixel 310 back to the light-emitting side of the OLED display module to reduce the back light leakage phenomenon, and can also act as another light-shielding layer to further block the ambient light passing through the first light-transmitting hole 510 and the second light-transmitting hole 710, thereby preventing or reducing the ambient light from reaching the light sensor 200 and improving the fingerprint recognition sensitivity.

[0092] The embodiment of the present application further provides a display terminal, comprising a terminal body and the OLED display module, wherein the OLED display module is integrated with the terminal body.

[0093] The present application eliminates the need for polarizers by setting a color film layer and a first light shielding layer 500 in the OLED display module, and achieves the effect of reducing light leakage between pixels, reducing the impact of ambient light, and reducing the thickness of the module; since a touch recognition module is also set in the OLED display module, the present application also sets a first light-transmitting hole 510 on the first light-shielding layer 500, and makes the positive projection of the light sensor 200 on the first light-shielding layer 500 at least partially overlap with the first light-transmitting hole 510, so that when fingerprint recognition is performed, the light emitted by the pixel layer 300 can reach the light sensor 200 through the first light-transmitting hole 510 after being reflected by the finger, thereby realizing the fingerprint recognition function. Through the above settings, the present application can make the optical path structure of the OLED display module compatible with the fingerprint recognition function, and has good effects of preventing light leakage and reducing the impact of ambient light reflection.

[0094] The above is a detailed introduction to an OLED display module and a display terminal 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 technical personnel in this field, according to the idea of ​​the present application, there will 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. An OLED display module, characterized in that: include: An array substrate; A light sensor is disposed on the array substrate; A pixel layer, disposed on the array substrate, comprising a plurality of sub-pixels arranged in an array; A color filter layer is disposed on a side of the pixel layer away from the array substrate, and includes a plurality of color filter sheets arranged in an array, wherein the plurality of color filter sheets correspond one-to-one to the plurality of sub-pixels; A first light-shielding layer is disposed in the spacing area between the plurality of color filter sheets and includes at least one first light-transmitting hole; At least one second light shielding layer, disposed between the pixel layer and the color filter layer, comprising at least one second light-transmitting hole; The light-collecting layer comprises at least one first micro-lens; the first micro-lens is arranged in the first light-transmitting hole, and a side of the first micro-lens away from the pixel layer is a convex surface; as well as an array metal layer, disposed between the array substrate and the pixel layer; the light sensor is located on a side of the array metal layer close to the array substrate, the array metal layer comprises a third light-transmitting hole, and the light sensor is disposed opposite to the third light-transmitting hole; The orthographic projections of the light sensor, the first light-transmitting hole, the second light-transmitting hole, the first microlens and the third light-transmitting hole on the array substrate at least partially overlap.

2. The OLED display module according to claim 1, characterized in that: The size of the first microlens on the first light shielding layer is smaller than or equal to the aperture of the first light-transmitting hole.

3. The OLED display module according to claim 1, characterized in that: The first light-transmitting hole includes at least one first light-transmitting area, the second light-transmitting hole includes at least one second light-transmitting area, and the third light-transmitting hole includes at least one third light-transmitting area; The orthographic projections of the first light-transmitting area, the second light-transmitting area, the third light-transmitting area, and the light sensor on the array substrate at least partially overlap.

4. The OLED display module according to claim 3, characterized in that: The first light-transmitting hole includes a first light-transmitting area, and the second light-transmitting hole includes a second light-transmitting area; the first light-transmitting hole and the first light-transmitting area are completely overlapped, and the second light-transmitting hole and the second light-transmitting area are completely overlapped; the aperture of the second light-transmitting hole is smaller than the aperture of the first light-transmitting hole.

5. The OLED display module according to claim 3, characterized in that: The first light-transmitting hole includes a plurality of the first light-transmitting areas, the second light-transmitting hole includes a plurality of the second light-transmitting areas, and the third light-transmitting hole includes a plurality of third light-transmitting areas; the first light-transmitting hole, the second light-transmitting hole and the third light-transmitting hole constitute a porous vertical structure.

6. The OLED display module according to claim 1, characterized in that: A boundary line of an orthographic projection of the first microlens on the second light shielding layer is located in the second light shielding layer outside the second light-transmitting hole.

7. The OLED display module according to any one of claims 1 to 6, characterized in that: The orthographic projection of the light sensor on the first light shielding layer completely covers the first light-transmitting hole, and the orthographic projection of the third light-transmitting hole on the light sensor is located inside the light sensor.

8. The OLED display module according to claim 1, characterized in that: The area of ​​the color filter sheet is larger than the area of ​​the corresponding sub-pixel.

9. The OLED display module according to claim 1, characterized in that: The light-gathering layer further includes a second microlens disposed between the pixel layer and the color filter layer; The orthographic projection of the second microlens on the pixel layer at least partially overlaps with the sub-pixel.

10. A display terminal, characterized in that: It comprises a terminal body and the OLED display module as claimed in any one of claims 1 to 9, wherein the OLED display module is integrated with the terminal body.

Images