CN112968141B

CN112968141B - Display module, electronic equipment and manufacturing method of display module

Info

Publication number: CN112968141B
Application number: CN202110223357.6A
Authority: CN
Inventors: 饶晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2023-04-18
Anticipated expiration: 2041-03-01
Also published as: CN112968141A

Abstract

The application discloses display module assembly, electronic equipment and display module assembly's manufacturing method, wherein, display module assembly includes: an organic light emitting assembly having a pixel array including a plurality of pixel points; the cover plate glass is arranged on the light emitting side of the organic light emitting component; the light guide layer is arranged between the cover plate glass and the organic light-emitting component, the light guide layer is provided with a mesh array structure, the mesh array structure comprises a plurality of light transmission holes, the light transmission holes are in one-to-one correspondence with the pixel points, and the hole walls of the light transmission holes can reflect light rays emitted by the pixel points to the cover plate glass. In the embodiment of this application, the pore wall of light trap can reflect the pore wall through the light trap to cover plate glass with the light that organic light emitting component sent to reduce the mutual interference of light, promote display module's demonstration luminance, under the condition that shows same luminance, have lower energy consumption, when being applied to electronic equipment, can promote electronic equipment's continuation of the journey.

Description

Display module, electronic equipment and manufacturing method of display module

Technical Field

The application belongs to the technical field of display screens, and particularly relates to a display module, electronic equipment and a manufacturing method of the display module.

Background

In the related art, as shown in fig. 1, in a display module 100 'of an AMOLED (Active Matrix/Organic Light Emitting Diode, chinese) hard panel, a top emission mode is usually adopted, a second glass substrate 1124' is disposed at the bottom, that is, the Light Emitting side is a cathode of an OLED (Organic Light Emitting Diode), and photons pass through the cathode, the first glass substrate 120', the polarization layer 130', the optical Adhesive layer 140 '(i.e., OCA, chinese) and the cover glass 150'. When the pixel points in the organic light emitting device emit light, the light is reflected back to the organic light emitting device when passing through the first glass substrate 120', the polarizing layer 130', the optical adhesive layer 140 'and the cover glass 150', and then forms interference with the light emitted by the organic light emitting device, specifically, for example: the light emitted by the B pixel 114 'interferes with the light emitted by the a pixel 112' after being reflected, and the light emitted by the C pixel 116 'interferes with the light emitted by the B pixel 114' after being reflected.

Disclosure of Invention

The present application is directed to a display module, an electronic device, and a method for manufacturing the display module, which at least solve one of the problems of low light emitting efficiency of an AMOLED in the related art.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a display module, including: an organic light emitting assembly having a pixel array including a plurality of pixel points; the cover plate glass is arranged on the light emitting side of the organic light emitting component; the light guide layer is arranged between the cover plate glass and the organic light-emitting component, the light guide layer is provided with a mesh array structure, the mesh array structure comprises a plurality of light transmission holes, the light transmission holes are in one-to-one correspondence with the pixel points, and the hole walls of the light transmission holes can reflect light rays emitted by the pixel points to the cover plate glass.

In a second aspect, an embodiment of the present application provides an electronic device, including: the display module set according to the first aspect of the present invention is provided.

In a third aspect, an embodiment of the present application provides a method for manufacturing a display module, including: forming a pixel array on the second glass substrate to obtain an organic light-emitting component, wherein the pixel array is provided with a plurality of pixel points; forming a light guide layer on the surface of the first glass substrate according to the pixel array; one side of the first glass substrate which is provided with the light guide layer is attached to the organic light emitting component, the cover plate glass is arranged on the other side of the first glass substrate, the light guide layer is provided with a mesh array structure, the mesh array structure comprises a plurality of light transmission holes, the light transmission holes are in one-to-one correspondence with the pixel points, and the hole walls of the light transmission holes can reflect light rays emitted by the pixel points to the cover plate glass.

In a fourth aspect, an embodiment of the present application provides a display module prepared according to the method for manufacturing a display module provided in the third aspect.

In the embodiment of this application, set up the leaded light layer at organic light emitting component and cover plate glass, and, have on this leaded light layer with organic light emitting component go up the light trap of pixel point one-to-one, and the pore wall of light trap can reflect the pore wall of light trap to cover plate glass with the light that organic light emitting component sent, thereby reduce the mutual interference of light, increase the total amount of the light that is sent by cover plate glass, promote display module's display brightness, under the condition of showing same luminance, the display module that the embodiment of this application provided compares in correlation technique, lower energy consumption has, when being applied to electronic equipment, can promote electronic equipment's continuation of the journey.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic cross-sectional view of a display module according to the related art;

FIG. 2 is a schematic cross-sectional view of a display module according to an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a display module according to another embodiment of the present disclosure;

FIG. 4 is a schematic view illustrating a light reflected by a light guide layer in a display module according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of an organic light emitting device in a display module according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a light guide layer in a display module according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a stack structure of a display module according to an embodiment of the present application;

FIG. 8 is a flowchart illustrating a method for manufacturing a display module according to an embodiment of the present disclosure;

FIG. 9 is a second flowchart of a method for manufacturing a display module according to an embodiment of the present application;

fig. 10 is a third flowchart of a method for manufacturing a display module according to an embodiment of the present application.

Reference numbers in fig. 1:

100' display module, 112' pixel A, 114' pixel B, 116' pixel C, 120' first glass substrate, 130' polarizing layer, 140' optical adhesive layer, 150' cover glass, 1124' second glass substrate;

reference numerals in fig. 2 to 7:

100 display module, 110 organic light emitting component, 112A pixel, 114B pixel, 116C pixel, 1102 anode, 1104 hole injection layer, 1106 hole transport layer, 1108 electron blocking layer, 1110 organic light emitting layer, 1112 hole blocking layer, 1114 electron transport layer, 1116 electron injection layer, 1118 cathode, 1120 light emitting layer, 1122 sealing glue, 1124 second glass substrate, 120 first glass substrate, 130 polarizing layer, 140 optical glue layer, 150 cover plate glass, 170 light guide layer, 172 light hole, 1722A light hole, 1724B light hole, 1726C light hole.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "thickness", "upper", "lower", "bottom", "circumferential", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following describes a display module 100, an electronic device, and a method for manufacturing the display module according to an embodiment of the present application with reference to fig. 2 to 10.

As shown in fig. 2, 3 and 7, according to the display module 100 of some embodiments of the present application, the display module includes: an organic light emitting element 110, the organic light emitting element 110 having a pixel array including a plurality of pixel points; a cover glass 150 disposed on a light emitting side of the organic light emitting device 110; the light guide layer 170 is disposed between the cover glass 150 and the organic light emitting device 110, the light guide layer 170 has a mesh array structure, the mesh array structure includes a plurality of light holes 172, the light holes 172 are disposed in a one-to-one correspondence with the pixel points, and the hole walls of the light holes 172 can reflect light emitted by the pixel points to the cover glass 150.

According to the display module 100 of the embodiment of the application, the light guide layer 170 is disposed on the organic light emitting element 110 and the cover glass 150, and the light guide layer 170 has the light holes 172 corresponding to the pixel points on the organic light emitting element 110 one to one, and the hole walls of the light holes 172 can reflect the light emitted by the organic light emitting element 110 to the cover glass 150 through the hole walls of the light holes 172, thereby reducing the mutual interference of the light, increasing the total amount of the light emitted by the cover glass 150, and improving the display brightness of the display module 100.

Specifically, organic light emitting component 110 includes the pixel array, leaded light layer 170 includes the mesh array, the pixel array corresponds the setting with the mesh array, and pass through the mesh array reflection with the light that the pixel array sent, the homoenergetic that realizes sending partial light to every pixel reflects, change the route of light, change the angle of incidence between partial light and the cover glass 150, produce the effect of gathering light, reduce the light that is sent back by each layer reflection by organic light emitting component 110, reduce the reflection interference of light, and then promote display module 100's luminance.

As shown in fig. 5 and 6, the organic light emitting assembly 110 includes: a pixel array including a plurality of pixel points; the light guide layer 170 includes: the mesh array, the mesh array includes a plurality of light trap 172, and light trap 172 and the setting of pixel one-to-one, the pore wall of light trap 172 can be to the light that the pixel sent of cover plate glass 150 reflection.

As shown in fig. 2 to 6, for the organic light emitting device 110, there are three types of pixels, which can emit green light, red light and blue light, specifically, the a pixel 112 can emit green light, the B pixel 114 can emit red light and the C pixel 116 can emit blue light.

Wherein, a pixel 112, B pixel 114 and C pixel 116 are arranged in an array, and further form a pixel array, and the light guide layer 170 is for each pixel, corresponding to each pixel, and set up a light hole 172, and further utilize the hole wall of the light hole 172 to reflect the partial light that the pixel sent, and further under the condition of guaranteeing the normal display of the display module 100, the hole wall of the light hole 172 can reflect the partial light that the pixel sent to the cover glass 150, i.e. the light scattered by the pixel is gathered together, thereby reducing the incident angle of the partial light, and further reducing the reflection angle of the partial light, and further when the light passes through the cover glass 150 or other layers, the interference range of the light reflected by the cover glass 150 is reduced, thereby making more light emit the cover glass 150 and other layers in an interference-free state, and further enhancing the brightness of the display module 100.

As a possible implementation manner, as shown in fig. 2, fig. 3 and fig. 7, the hole wall of the light-transmitting hole 172 is disposed obliquely with respect to the side of the light-guiding layer facing the organic light-emitting device 110, the light-transmitting hole 172 includes a first opening and a second opening, the first opening is close to the pixels disposed in a one-to-one correspondence, the opening area of the first opening is smaller than that of the second opening, and the first opening is disposed opposite to the pixels. The first opening is close to the pixel point corresponding to the light hole 172 one to one with respect to the second opening.

That is to say, light trap 172 has the pore wall that the slope set up to make light trap 172 form the opening that two opening areas of first opening and second opening are different, and, the less first opening of area is towards the pixel, and then when pixel is lighted, because the incline direction of pore wall, can reflect light to cover plate glass 150, thereby reduce the angle of incidence that light got into cover plate glass 150. The hole wall of the light hole 172 is configured to reflect light to the cover glass 150, so that the light loss is reduced, and the brightness of the display module 100 is improved.

Specifically, the overall hole pattern of the light-transmitting hole 172 is a frustum.

As a possible implementation manner, as shown in fig. 2 to 6, the light-transmitting holes 172 and the pixel points corresponding to the light-transmitting holes 172 one-to-one satisfy: the opening area of the first opening is larger than or equal to the light emitting area of the pixel point facing one side of the light guide layer.

Corresponding light trap 172 and pixel promptly, first open-ended area is more than or equal to the area of pixel towards leaded light layer 170 one side, and then ensures that the light that the pixel sent gets into light trap 172 by first opening as much as possible, and then guarantees the total amount of display module 100 reflection light, promotes display module 100's luminance.

As a possible implementation manner, as shown in fig. 2 to 6, the light-transmitting holes 172 and the pixel points corresponding to the light-transmitting holes 172 one-to-one satisfy: the opening area of the second opening is larger than or equal to 1.5 times of the light emitting area of the pixel point facing one side of the light guide layer. That is, the area of first open-ended area is more than or equal to 1.5 times the area of pixel towards leaded light layer 170 one side, when light jets out through light trap 172, the light jet-out area of pixel can increase 1.5 times, and because every pixel has all been gathered together light, therefore, the light jet-out area of suitable expansion pixel, can guarantee the continuity between the pixel, reduce the sense of grain when display module assembly 100 is imaged, promote display module assembly 100's the formation of image effect, and, to the equivalent of pixel enlargeing, can avoid the interference of different light between the different look pixel, make the display colour of every pixel purer, reduce and show the color cast, and then promote display module assembly 100's display effect.

As a possible implementation manner, as shown in fig. 2, 3, and 4 to 7, the inclination angle of the hole wall of the light-transmitting hole 172 is in a range of 30 degrees to 60 degrees with respect to the side of the light guide layer facing the organic light emitting device 110. That is, the inclined angle of the hole wall of the light-transmitting hole 172 is set to 30 to 60 degrees with respect to the light-emitting side of the organic light-emitting device 110, so that when light reflected by the hole wall enters the cover glass 150, the incident angle is smaller, and the effect of reducing light interference is ensured.

Specifically, light is through the reflection of pore wall, through the reflection of cover glass 150 again, in fact, light can be through twice reflection, and according to the reflection principle of light, the incident angle equals the reflection angle, therefore, if the inclination of pore wall is too big, can lead to partial light to pass through the once reflection back of pore wall, can increase the incident angle that gets into cover glass 150, and if the inclination undersize of pore wall, will lead to the unable reflection that passes through the pore wall of some light, therefore, set up the pore wall of light trap 172 in this application into, be 30 degrees to 60 degrees for the inclination of the one side of leaded light layer 170 orientation organic light emitting component 110, when having guaranteed that there is sufficient light to be reflected by the pore wall, avoid by the reflection light and the too big incident angle between the cover glass 150.

Further, combine light trap 172 and satisfy with the pixel that light trap 172 is relative to: the opening area of the first opening is larger than or equal to the area of the pixel point facing one side of the light guide layer 170, the opening area of the second opening is larger than or equal to 1.5 times the area of the pixel point facing one side of the light guide layer 170, and the inclination angle of the hole wall of the light transmission hole 172 is 30 degrees to 60 degrees relative to the side of the light guide layer 170 facing the organic light emitting component 110. The thickness of the light guide layer 170 can be limited, so that the thickness of the light guide layer 170 is reduced, and the light and thin feeling of the display module 100 is improved.

Specifically, as shown in fig. 2 to fig. 6, the light emitting areas of the different kinds of pixels are different, that is, the light emitting areas of the a pixel 112, the B pixel 114 and the C pixel 116 are different, and therefore, the light hole 172 is also provided with an a light hole 1722, a B light hole 1724 and a C light hole 1726 correspondingly. The a transparent hole 1722 corresponds to the a pixel 112, the B transparent hole 1724 corresponds to the B pixel 114, and the C transparent hole 1726 corresponds to the C pixel 116, i.e., the size of the corresponding pixel corresponds to the size of the corresponding transparent hole 172.

As a possible embodiment, the light guide layer 170 is an optical acrylic light guide film or an optical polycarbonate light guide film. Optical inferior gram force leaded light membrane and optical polycarbonate leaded light membrane have high refracting index and light transmissivity, and do not absorb light, and then can reduce the loss of light, make light can all pass leaded light layer 170, and then for display module assembly 100' among the correlation technique, under the condition of the same display brightness, the luminous luminance of organic light emitting component 110 is lower in the display module assembly 100 of this application, and then reduce display module assembly 100's current consumption, reduce display module assembly 100's power, and, optical inferior gram force leaded light membrane and optical polycarbonate leaded light membrane are simple easily obtained, the workable is moulding, save the processing cost.

As a possible implementation, as shown in fig. 2, 3 and 7, the method further includes: a first glass substrate 120 disposed between the organic light emitting device 110 and the cover glass 150; the polarizing layer 130 is arranged on one side of the first glass substrate 120 away from the organic light emitting assembly 110; an optical adhesive layer 140 disposed between the polarizing layer 130 and the cover glass 150, wherein the light guiding layer 170 can be disposed between the organic light emitting device 110 and the first glass substrate 120, between the first glass substrate 120 and the polarizing layer 130, between the polarizing layer 130 and the optical adhesive layer 140, or between the optical adhesive layer 140 and the cover glass 150.

Specifically, the display module 100 further includes: in practical applications, light rays can be reflected when passing through the first glass substrate 120, the polarizing layer 130, the optical adhesive layer 140 and the cover glass 150, and then interfere with other light rays, so that the light guide layer 170 is disposed between the organic light emitting device 110 and the first glass substrate 120, between the first glass substrate 120 and the polarizing layer 130, between the polarizing layer 130 or the optical adhesive layer 140, or between the optical adhesive layer 140 and the cover glass 150, and the brightness of the display module 100 can be improved.

The present application is described in detail with the light guiding layer 170 disposed between the first glass substrate 120 and the organic light emitting assembly 110, and between the first glass substrate 120 and the polarizing layer 130.

As shown in fig. 2, under the condition that the light guide layer 170 is disposed between the first glass substrate 120 and the organic light emitting assembly 110, after the light is emitted from the pixel array of the organic light emitting assembly 110, the light passes through the light guide layer 170, and a part of the light is reflected by the hole wall of the light hole 172 on the light guide layer 170, so as to change the path, and further change the incident angle between a part of the light and the first glass substrate 120, thereby reducing the number of reflections by the first glass substrate 120, the polarizing layer 130, the optical adhesive layer 140, and the cover glass 150, and further reducing the mutual interference of the light, and, in cooperation with the high refractive index of the light guide layer 170, compared with the display module 100' of the related art, the brightness is effectively improved.

As shown in fig. 3, in the case that the light guide layer 170 is disposed between the first glass substrate 120 and the polarization layer 130, after the light is emitted from the pixel array of the organic light emitting device 110, the light firstly passes through the first glass substrate 120, because the first glass substrate 120 has good light transmittance and refractive index, when the light passes through the first glass substrate 120, the change is small and negligible, after the light further enters the light guide layer 170, a part of the light is reflected by the hole wall of the light hole 172 on the light guide layer 170, the path is changed, and the incident angle between the part of the light and the first glass substrate 120 is changed, so that the reflection number of the polarized layer 130, the optical adhesive layer 140, and the cover glass 150 is reduced, and the mutual interference of the light is reduced, and, in cooperation with the high refractive index of the light guide layer 170, the brightness is effectively improved compared with the related art display module 100'.

Experiments prove that the two embodiments of the application can improve the light-emitting efficiency of the display module 100 by 20 percent and improve the display quality such as large-visual-angle display color cast, visual angle, crosstalk and the like.

Moreover, under the condition of the same brightness requirement, the luminous current of the display module 100 can be effectively reduced, and the power consumption is reduced, so that the battery service life of the electronic equipment is prolonged, and the cruising effect is improved.

As one possible embodiment, as shown in fig. 2 and 3, the organic light emitting assembly 110 includes: a second glass substrate 1124; a light-emitting layer 1120 disposed on one side of the second glass substrate 1124, the pixel array being disposed on the light-emitting layer 1120, the light-emitting layer being disposed between the first glass substrate 120 and the second glass substrate 1124; the encapsulant 1122 encapsulates the light emitting layer 1120 and is disposed on one side of the second glass substrate 1124. Specifically, the light emitting layer 1120 is processed on the second glass substrate 1124, and the light emitting layer 1120 is encapsulated by the encapsulant 1122 to protect the light emitting layer 1120, wherein the light emitting layer 1120 includes a pixel array, and the encapsulant 1122 is filled in the gap and the periphery of the pixel array to protect the pixel array.

Further, as shown in fig. 7, the light emitting layer 1120 has a stacked structure of, in order from the second glass substrate 1124 to the first glass substrate 120: an anode 1102, a hole injection layer 1104, a hole transport layer 1106, an electron blocking layer 1108, an organic light emitting layer 1110, a hole blocking layer 1112, an electron transport layer 1114, an electron injection layer 1116 and a cathode 1118, wherein ito can also be used for the anode 1102. The specific light emitting principles thereof are well known to those of ordinary skill in the art and will not be described in detail herein.

As a possible implementation, as shown in fig. 5 and 6, the light emitting surface of the pixel point is in a diamond shape; any cross section of the wall of the light-transmitting hole 172 is diamond-shaped. The light trap 172 corresponds the setting with the pixel point promptly, and the arbitrary cross section of the pore wall of light trap 172 is the same with the shape of the light emitting area of pixel, and then can realize equivalent reflection, avoids the disorder of light, promotes the display effect.

Specifically, the luminescence of the pixel point on the organic light emitting component 110 is to scattering all around, and then increase the leaded light layer 170 that has rhombus light trap 172, utilize the light reflection principle, pass through the reflection with the light of scattering, the route of effectual change light, improve the utilization ratio of light, and, the rhombus of pixel is luminous, to luminous quantity all around more even, consequently, the light that is launched by the leaded light layer is also more even, change in the equivalent reflection of light all around, avoid local reflection light too much, cause the inhomogeneous condition of realization effect, promote display module's display effect.

The first embodiment is as follows: as shown in fig. 1, in the related art: after the organic light emitting device in the display module 100 'emits light, there are some light rays, some of which are directly emitted through the first glass substrate 120', some of which are refracted through the first glass substrate 120', and another of which are reflected back through the first glass substrate 120'.

As shown in fig. 2, for the light of the reflection in effective utilization display module assembly 100, through do the leaded light layer 170 of one deck pixel level on the top layer under first glass substrate 120, the light hole 172 of personally submitting the rhombus is made to leaded light layer 170 structurally, forms the reflection of light, make full use of light reflection principle, come with the fine reflection of light, thereby effectual promotion luminance, the proportion of the second trompil of leaded light layer 170 refers to the luminous size in pixel top and makes according to 1.5 proportion, the open area of second open-ended is 1.5 times of pixel top luminous area promptly.

Specifically, the light guide layer 170 is formed on the surface of the first glass substrate 120 by exposing, developing and etching, and the polarizer, the cover glass 150, and the like are attached thereto. The utilization rate of light is improved by changing the light path, so that the brightness is improved.

The light guide layer 170 is formed by performing processes of exposure, development, and etching using fine grinding. The light holes 172 on the light guide layer 170 correspond to the pixels one by one, and the mesh size is manufactured according to the pixel size 1.

The above embodiment can improve the light emitting efficiency of the display module 100 by 20%, and improve the display quality such as large viewing angle display color cast, viewing angle, crosstalk and the like. Moreover, under the condition of the same brightness requirement, the luminous current of the display module 100 can be effectively reduced, and the power consumption is reduced, so that the battery service life of the electronic equipment is prolonged, and the cruising effect is improved.

The second embodiment is as follows: as shown in fig. 1, in the related art: after the organic light emitting device in the display module 100 'emits light, there are some light rays, some of which are directly emitted through the first glass substrate 120', some of which are refracted through the first glass substrate 120', and another of which are reflected back through the first glass substrate 120'.

As shown in fig. 2, for the light of the reflection in effective utilization display module assembly 100, through do the leaded light layer 170 of one deck pixel level on first glass substrate 120 upper epidermis, the structural rhombus structure of making of leaded light layer 170 forms the reflection of light, make full use of light reflection principle, come with the fine reflection of light to effectual promotion luminance, the proportion of the second trompil of leaded light layer 170 refers to the luminous size in pixel top and makes according to 1.5 proportion, and the open area of second open-ended is 1.5 times of the luminous area in pixel top promptly.

The light guide layer 170 is formed by performing processes of exposure, development, and etching using fine grinding. The light holes 172 on the light guide layer 170 correspond to the pixels one to one, and the mesh size is manufactured according to the ratio of 1.5 to the pixel size 1.

The above embodiment can improve the light emitting efficiency of the display module 100 by 20%, and improve the display quality such as large viewing angle display color cast, viewing angle, crosstalk and the like. Moreover, under the condition of the same brightness requirement, the luminous current of the display module 100 can be effectively reduced, and the power consumption is reduced, so that the battery service life of the electronic equipment is prolonged, and the endurance effect is improved.

The display module 100 of the present application may be a rigid AMOLED or a flexible AMOLED.

An electronic device according to some embodiments of the present application includes the display module 100 according to any of the embodiments described above.

The electronic device of the present application includes the display module 100 according to any of the above embodiments, so that all the advantages of the display module 100 according to any of the above embodiments are provided, and are not further described herein.

Furthermore, the electronic device can comprise a processor, a memory, a power module and the like, wherein the display module is connected with the processor, and then displays corresponding images according to signals of the processor.

Specifically, the electronic device may be: the mobile phone, the tablet computer, the watch, the notebook computer, the display, the vehicle-mounted equipment or the television and the like can display images.

Fig. 8 shows a manufacturing method of a display module, which can be used to manufacture the display module according to the embodiment of the present application, and as shown in fig. 8, the manufacturing method of the display module includes:

step 802: forming a pixel array on the second glass substrate to obtain an organic light-emitting component, wherein the pixel array is provided with a plurality of pixel points;

step 804: forming a light guide layer on the surface of the first glass substrate according to the pixel array;

step 806: and attaching one side of the first glass substrate with the light guide layer to the organic light-emitting component, and arranging cover plate glass on the other side.

Wherein, the leaded light layer has mesh array structure, and mesh array structure includes a plurality of light traps, and the light trap sets up with the pixel one-to-one, and the pore wall of light trap can be to the light that the cover plate glass reflection pixel sent.

At the beginning of manufacturing the display module, the pixel array needs to be manufactured on the second glass substrate to obtain the organic light-emitting component, and the pixel array and the mesh array are ensured to be in one-to-one correspondence according to the pixel array on the organic light-emitting component, namely the distribution condition of specific pixel points and the shape of the light-emitting side of the pixel points.

And forming a light guide layer on the surface of the first glass substrate, and then packaging the organic light-emitting component, the first glass substrate provided with the light guide layer and the cover plate glass.

And, directly processing the leaded light layer on first glass, need not secondary removal leaded light layer, only need add man-hour, aim at the position of pixel array and mesh array can to when laminating first glass substrate of the luminous side laminating of organic light emitting component and leaded light layer, the alignment position can, every reduction leaded light layer's removal, just can reduce the skew risk of leaded light layer, ensure display module's display effect, and then promote the yields.

Specifically, the light guiding layer may face the organic light emitting device, or the first glass substrate may face the organic light emitting device.

Fig. 9 shows a manufacturing method of a display module according to an embodiment of the present application, which can be used to manufacture the display module according to the embodiment, as shown in fig. 9, the manufacturing method of the display module includes:

step 902: forming a pixel array on the second glass substrate to obtain an organic light-emitting component, wherein the pixel array is provided with a plurality of pixel points;

step 904: bonding a substrate on a first glass substrate;

step 906: according to the area of the light-emitting side of the pixel points in the pixel array, exposing, developing and etching the substrate to process light holes;

step 908: and attaching one side of the first glass substrate with the light guide layer to the organic light-emitting component, and arranging cover plate glass on the other side.

Wherein, for one side of base plate, the pore wall slope of light trap sets up, and the light trap includes first opening and second opening, and the open area of first opening is more than or equal to the area of the effective luminous side of pixel, and the open area of second opening is more than or equal to the area of the effective luminous side of the pixel of 1.5 times, and first opening is close to organic light emitting component.

Furthermore, when the light guide layer is processed, the substrate is subjected to fine grinding pretreatment, so that the flatness of the substrate is ensured, the substrate can be an optical acrylic light guide film or an optical polycarbonate light guide film, and then the substrate is arranged on the first glass substrate.

In this embodiment, the substrate is attached to the first glass substrate, and then the substrate is exposed, developed, and etched according to the area of the light emitting side of the pixel in the pixel array, so that a plurality of light-transmitting holes are processed on the substrate to form a mesh array, which can correspond to the pixel array one by one to ensure the light reflection effect.

And, corresponding light trap and pixel, first open-ended area is more than or equal to the area that the pixel faces leaded light layer one side, and then ensures that the light that the pixel sent gets into the light trap by first opening as much as possible, and then guarantees the luminous total amount of display module, avoids unnecessary light loss, promotes display module's luminance.

First open-ended area is more than or equal to 1.5 times pixel towards the area of leaded light layer one side, when light jets out through the light trap, the light jet-out area of pixel can increase 1.5 times, and because every pixel has all been gathered together light, therefore, the light jet-out area of suitable expansion pixel, can guarantee the continuity between the pixel, granule when reducing the display module formation of image feels, promote the formation of image effect of display module assembly, and, enlarge to the equivalence of pixel, can avoid the interference of different light between the different look pixel, make the display colour of every pixel more pure, reduce and show the color cast, and then promote the display effect of display module assembly.

Furthermore, the inclined angle of the hole wall of the light hole is processed to be 30-60 degrees relative to the light emitting side of the organic light emitting component, so that when reflected light enters the first glass substrate through the hole wall, the incident angle is smaller, and the effect of reducing light interference is ensured.

Specifically, light is through the reflection of pore wall, through the reflection of first glass substrate again, in fact, light can be through twice reflection, and according to the reflection principle of light, the incident angle equals the reflection angle, therefore, if the inclination of pore wall is too big, can lead to partial light to pass through the reflection back of pore wall, can increase the incident angle that gets into cover plate glass, and if the inclination undersize of pore wall, will lead to the unable reflection that passes through the pore wall of some light, therefore, set up the pore wall of light trap in this application into, be 30 degrees to 60 degrees for the inclination of the one side of leaded light layer orientation organic light emitting component 110, when having guaranteed that there is sufficient light to be reflected by the pore wall, avoid by the reflection light and the too big incident angle between the cover plate glass.

Further, combine the light trap and satisfy with the pixel that the light trap is relative: the opening area of the first opening is larger than or equal to the area of the pixel points facing one side of the light guide layer, the opening area of the second opening is larger than or equal to 1.5 times the area of the pixel points facing one side of the light guide layer, and the inclination angle of the hole wall of the light transmission hole ranges from 30 degrees to 60 degrees relative to the surface of the light guide layer facing the organic light emitting component 110.

And then can inject the thickness on leaded light layer, reduce the thickness on leaded light layer, promote display module's frivolous sense.

Fig. 10 shows a manufacturing method of a display module, which can be used to manufacture the display module of the above embodiment, according to an embodiment of the present application, as shown in fig. 10, the manufacturing method of the display module includes:

step 1002: forming a pixel array on the second glass substrate to obtain an organic light-emitting component, wherein the pixel array is provided with a plurality of pixel points;

step 1004: bonding a substrate on a first glass substrate;

step 1006: according to the area of the light-emitting side of the pixel points in the pixel array, exposing, developing and etching the substrate to process light holes;

step 1008: and attaching one side of the first glass substrate with the light guide layer to the organic light-emitting component, and attaching the polarizing layer and the optical adhesive layer to the other side of the first glass substrate with the light guide layer and arranging cover plate glass.

In this embodiment, on first glass substrate and leaded light layer, laminate polarisation layer, optical cement layer and apron glass in proper order, and then accomplish whole display module assembly, specifically, organic light emitting component, first glass substrate and leaded light layer, polarisation layer, optical cement layer and apron can adopt the mode of vacuum laminating to laminate together.

The display module according to some embodiments of the present application is manufactured according to the method for manufacturing a display module set provided in the third aspect.

In the description herein, references to the description of "one embodiment," "some embodiments," "a specific embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A display module, comprising:

an organic light emitting assembly having a pixel array including a plurality of pixel points;

the cover plate glass is arranged on the light emitting side of the organic light emitting component;

the light guide layer is arranged between the cover plate glass and the organic light emitting component, the light guide layer is provided with a mesh array structure, the mesh array structure comprises a plurality of light transmission holes, the light transmission holes are arranged in one-to-one correspondence with the pixel points, the size of the pixel points corresponds to that of the light transmission holes, any cross section of the hole wall of each light transmission hole is the same as the shape of the light emitting surface of the pixel point, and the hole wall of each light transmission hole can reflect light rays emitted by the pixel points to the cover plate glass;

the hole wall of the light hole is obliquely arranged relative to the surface, facing the organic light-emitting component, of the light guide layer, the light hole comprises a first opening and a second opening, and the first opening is close to the pixel points which are arranged in a one-to-one corresponding mode;

the light hole and with the light hole one-to-one the pixel satisfies: the opening area of the first opening is larger than or equal to the light emitting area of the pixel point facing one side of the light guide layer;

the light-transmitting holes and the pixel points which correspond to the light-transmitting holes one by one meet the following requirements: the opening area of the second opening is larger than or equal to 1.5 times of the light emitting area of the pixel point facing one side of the light guide layer;

the inclination angle of the hole wall of the light hole ranges from 30 degrees to 60 degrees relative to the surface, facing the organic light emitting component, of the light guide layer.

2. The display module of claim 1,

the opening area of the first opening is smaller than that of the second opening, and the first opening is opposite to the pixel point.

3. The display module according to claim 1 or 2,

the light guide layer comprises an optical acrylic light guide film or an optical polycarbonate light guide film.

4. The display module according to claim 1 or 2, further comprising:

the first glass substrate is arranged between the organic light-emitting component and the cover plate glass;

the polarizing layer is arranged on one side, away from the organic light-emitting component, of the first glass substrate;

an optical adhesive layer arranged between the polarizing layer and the cover glass,

the light guide layer can be arranged between the organic light-emitting component and the first glass substrate, between the first glass substrate and the polarizing layer, between the polarizing layer and the optical adhesive layer or between the optical adhesive layer and the cover plate glass.

5. The display module of claim 4, wherein the organic light emitting assembly further comprises:

a second glass substrate;

the light emitting layer is arranged on one side of the second glass substrate, the pixel array is positioned on the light emitting layer, and the light emitting layer is positioned between the first glass substrate and the second glass substrate;

and the sealing glue is used for packaging the light emitting layer and is positioned on one side of the second glass substrate.

6. The display module according to claim 1 or 2,

the light-emitting surfaces of the pixel points are in a diamond shape;

any cross section of the hole wall of the light hole is rhombic.

7. An electronic device, comprising:

a display module according to any one of claims 1 to 6.

8. A manufacturing method of a display module is characterized by comprising the following steps:

forming a pixel array on the second glass substrate to obtain an organic light-emitting component, wherein the pixel array is provided with a plurality of pixel points;

forming a light guide layer on the surface of the first glass substrate according to the pixel array;

attaching one side of the first glass substrate on which the light guide layer is formed to the organic light emitting assembly, and disposing a cover glass on the other side,

the light guide layer is provided with a mesh array structure, the mesh array structure comprises a plurality of light transmission holes, the light transmission holes are arranged in one-to-one correspondence with the pixel points, the size of each pixel point corresponds to that of the corresponding light transmission hole, any cross section of the hole wall of each light transmission hole is the same as the shape of the light emitting surface of each pixel point, and the hole wall of each light transmission hole can reflect light rays emitted by the pixel points to the cover plate glass;

the step of forming a light guide layer on the surface of the first glass substrate according to the pixel array specifically includes:

attaching a substrate to the first glass substrate;

exposing, developing and etching the substrate according to the area of the light emitting side of the pixel points in the pixel array to process light holes,

the hole wall of the light hole is obliquely arranged relative to one side of the substrate, the light hole comprises a first opening and a second opening, the opening area of the first opening is larger than or equal to the area of the effective light emitting side of the pixel point, the opening area of the second opening is larger than or equal to 1.5 times of the area of the effective light emitting side of the pixel point, and the first opening is close to the organic light emitting component.

9. The method for manufacturing a display module according to claim 8, further comprising, before the step of disposing a cover glass on the other side:

and attaching a polarizing layer and an optical adhesive layer to the other side of the first glass substrate on which the light guide layer is formed.

10. A display module manufactured by the method according to claim 8 or 9.