CN116723742A - Display module, manufacturing method thereof and display device - Google Patents
Display module, manufacturing method thereof and display device Download PDFInfo
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- CN116723742A CN116723742A CN202310783093.9A CN202310783093A CN116723742A CN 116723742 A CN116723742 A CN 116723742A CN 202310783093 A CN202310783093 A CN 202310783093A CN 116723742 A CN116723742 A CN 116723742A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 52
- 210000000438 stratum basale Anatomy 0.000 claims abstract 6
- 238000005538 encapsulation Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 3
- 239000010410 layer Substances 0.000 description 311
- 239000010408 film Substances 0.000 description 42
- 239000000463 material Substances 0.000 description 13
- 239000011159 matrix material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/878—Arrangements for extracting light from the devices comprising reflective means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The application discloses a display module, a manufacturing method thereof and a display device. Wherein, the display module assembly includes stratum basale, light-emitting layer and various rete, and the top of stratum basale is located to the light-emitting layer, and one side that the light-emitting layer deviates from the stratum basale is located to various rete, and various rete has a plurality of light-transmitting areas and shading portion, and the display module assembly still includes: the first reflecting layer is arranged between the light emitting layer and the shading part, the first reflecting layer comprises a first reflecting part, and the orthographic projection of the first reflecting part on the basal layer is at least partially positioned in the orthographic projection of the shading part on the basal layer; the second reflecting layer is arranged between the light emitting layer and the substrate layer, the second reflecting layer comprises a second reflecting part, the orthographic projection of the first reflecting part on the substrate layer is at least partially positioned in the orthographic projection of the second reflecting part on the substrate layer, and the second reflecting part at least partially reflects the reflected light rays passing through the first reflecting part to the light transmitting area. The technical scheme of the application can improve the luminous brightness of the display.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display module, a manufacturing method thereof and a display device.
Background
The OLED (Organic Light Emitting Diode Display, organic light emitting diode) has the advantages of higher resolution, higher contrast ratio and lower power consumption. Currently, OLED displays generally employ a structural design of white light plus a color filter film, through which white light forms a display image. However, the brightness of the white light is reduced after the white light passes through the color filter film, thereby resulting in a reduction in the overall emission brightness of the OLED display.
Disclosure of Invention
The application aims to provide a display module, a manufacturing method thereof and a display device, which can effectively improve the luminous brightness of a display.
Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.
According to an aspect of the embodiment of the present application, the present application provides a display module, the display module includes a substrate layer and a light-emitting layer, the light-emitting layer is disposed above the substrate layer, the display module further includes a color film layer, the color film layer is disposed on a side of the light-emitting layer facing away from the substrate layer, the color film layer has a plurality of light-transmitting areas, a light-shielding portion is disposed between a plurality of the light-transmitting areas, and the display module further includes:
the first reflecting layer is arranged between the light emitting layer and the shading part, and comprises a first reflecting part, and the orthographic projection of the first reflecting part on the basal layer is at least partially positioned in the orthographic projection of the shading part on the basal layer;
the second reflection layer is arranged between the light emitting layer and the substrate layer, the second reflection layer comprises a second reflection part, the orthographic projection of the first reflection part on the substrate layer is at least partially positioned in the orthographic projection of the second reflection part on the substrate layer, and the second reflection part reflects the reflected light rays passing through the first reflection part at least partially towards the light transmission region.
In one aspect, at least part of the reflecting surface of the second reflecting portion and at least part of the reflecting surface of the first reflecting portion form an included angle, and the included angle is between 0 ° and 90 °.
In one aspect, the reflecting surface of the first reflecting portion is a plane, and at least part of the reflecting surface of the second reflecting portion is an arc-shaped surface.
In one aspect, the second reflective portion is recessed toward the first reflective portion away from the first reflective portion reflective surface; the reflecting surface of the second reflecting part facing the first reflecting part is a plane.
In one aspect, the display module further includes an insulating layer and a packaging layer, the insulating layer is disposed between the base layer and the light-emitting layer, the insulating layer is provided with a sinking groove corresponding to the light shielding portion, the second reflecting portion is disposed in the sinking groove, and the packaging layer is disposed between the light-emitting layer and the first reflecting layer.
In one aspect, a groove is formed in a side, facing the light emergent layer, of the light shielding portion, and the first reflecting portion is arranged in the groove.
In one aspect, the display module further includes a flat layer, the flat layer is disposed between the color film layer and the encapsulation layer, and the first reflective layer is disposed between the encapsulation layer and the flat layer.
In one aspect, the light emitting layer includes an anode layer, a light emitting layer, and a cathode layer, the light emitting layer is disposed between the anode layer and the cathode layer, the anode layer is disposed facing the second reflective layer, the cathode layer is disposed facing the first reflective layer, and the first reflective layer and the second reflective layer are specular reflective layers;
or alternatively
The display module further comprises a light emitting device, the light emitting layer is a liquid crystal layer, the light emitting device is arranged on one side, far away from the light emitting layer, of the second reflecting layer, the first reflecting layer is a specular reflecting layer, and the second reflecting layer is a semi-reflection semi-transparent layer.
In addition, in order to solve the above problems, the present application further provides a manufacturing method of a display module, where the manufacturing method includes:
forming a second reflective layer on the base layer, the second reflective layer including a second reflective portion;
forming a light emitting layer on the second reflecting layer;
forming a first reflecting layer on the light emergent layer, wherein the first reflecting layer comprises a first reflecting part; the method comprises the steps of carrying out a first treatment on the surface of the
Forming a light shielding part and a color film layer on the first reflecting layer, wherein the color film layer is provided with a plurality of light transmission areas, and the light shielding part is formed between adjacent light transmission areas; the front projection of the first reflecting part on the basal layer is at least partially positioned in the front projection of the shading part on the basal layer, and the front projection of the first reflecting part on the basal layer is positioned in the front projection of the second reflecting part on the basal layer.
In addition, in order to solve the above problems, the present application further provides a display device, where the display device includes a housing and a display module set as described above, the display module set is disposed in the housing, and the display module set further includes a driving circuit layer, where the driving circuit layer is disposed between the base layer and the second reflective layer.
In the application, the light passing through the light emitting layer is emitted to the color film layer and is emitted through the light transmitting area of the color film layer, so that a display image is formed. The light of the light emitting layer is emitted to the shading part, the orthographic projection of the first reflecting part on the basal layer is at least partially positioned in the orthographic projection of the shading part on the basal layer, and the first reflecting part is at least partially opposite to the corresponding arrangement of the shading part, so that the light emitted to the shading part is at least partially reflected back by the first reflecting part. The front projection of the first reflecting part on the substrate layer is positioned in the front projection of the second reflecting part on the substrate layer, so that the second reflecting part is arranged opposite to the first reflecting part, and the light passing through the first reflecting part can be emitted to the second reflecting part. The second reflecting part reflects the light rays to the light-transmitting area, and after the light rays are reflected by the second reflecting part, the emergent quantity of the light rays in the light-transmitting area is increased, so that the luminous brightness of the display is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 schematically shows a schematic structure of a display module according to a first embodiment of the present application.
Fig. 2 schematically shows a schematic structure of a base layer and an insulating layer in a display module according to a second embodiment of the present application.
Fig. 3 schematically illustrates a structure of providing a recess in an insulating layer when manufacturing a display module according to a second embodiment of the present application.
Fig. 4 schematically illustrates a structure of a reflective material layer when manufacturing a display module according to a second embodiment of the application.
Fig. 5 schematically illustrates a structure of a second reflective portion etched when manufacturing a display module according to a second embodiment of the application.
Fig. 6 schematically illustrates a structure of a light emitting layer when manufacturing a display module according to a second embodiment of the present application.
Fig. 7 schematically illustrates a structure of a package layer disposed on a light-emitting layer when manufacturing a display module according to a second embodiment of the present application.
Fig. 8 schematically illustrates a structure of a reflective film layer disposed on a light-emitting layer when manufacturing a display module according to a second embodiment of the present application.
Fig. 9 schematically illustrates a structure of a first reflective portion etched when manufacturing a display module according to a second embodiment of the application.
Fig. 10 schematically illustrates a structure of a color film layer when manufacturing a display module according to a second embodiment of the application.
Fig. 11 schematically illustrates a structure of a color film layer when manufacturing a display module according to a second embodiment of the application.
Fig. 12 schematically illustrates a structure of a color film layer when manufacturing a display module according to a second embodiment of the application.
Fig. 13 schematically illustrates a flowchart of a method for manufacturing a display module according to a second embodiment of the present application.
Fig. 14 schematically shows a schematic structure of a display device in a third embodiment of the present application.
The reference numerals are explained as follows:
10. a base layer; 20. a light-emitting layer; 30. a color film layer; 40. a first reflective layer; 50. a second reflective layer; 60. an insulating layer; 71. an encapsulation layer; 72. a drive line layer; 73. a flat layer; 74. a light emitting device; 75. a protective layer;
310. a light transmission region; 320. a light shielding section; 410. a first reflection section; 420. a reflective film layer; 510. a second reflection part; 520. a layer of reflective material; 610. a sinking groove; 321. a groove.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Example 1
Referring to fig. 1, the present application provides a display module, which includes a substrate layer 10 and a light emitting layer 20, wherein the light emitting layer 20 is disposed above the substrate layer 10, the substrate layer 10 has the function of supporting and protecting the light emitting layer 20, and the substrate layer 10 may be glass or sapphire. The light-emitting layer 20 is used for emitting light, and the emitted light can be light generated by self-luminescence or light generated by other devices and is transmitted through the light-emitting layer 20.
The display module further comprises a color film layer 30, wherein the color film layer 30 is arranged on one side of the light emitting layer 20, which is away from the substrate layer 10, the color film layer 30 is provided with a plurality of light transmitting areas 310, and a shading part 320 is arranged between the light transmitting areas 310. It can also be understood that the color film layer 30 is divided into a plurality of light-transmitting areas 310 by the arrangement of the light shielding portions 320. For example, the light shielding portions 320 extend in the row direction and also extend in the column direction, and the region formed by the intersection of the row and column directions is the light transmitting region 310. The light shielding portion 320 may be understood as a Black Matrix (BM). Each light-transmitting region 310 is provided with a filter film, and the color of the filter film may be red, green or blue. Typically red, green and blue, form a pixel.
The display module assembly still includes: the first reflecting layer 40 and the second reflecting layer 50, the first reflecting layer 40 is disposed between the light emitting layer 20 and the light shielding portion 320, the first reflecting layer 40 includes a first reflecting portion 410, and the orthographic projection of the first reflecting portion 410 on the substrate layer 10 is at least partially located in the orthographic projection of the light shielding portion 320 on the substrate layer 10; as can be seen from the fact that the front projection of the first reflecting portion 410 on the substrate layer 10 is at least partially located in the front projection of the light shielding portion 320 on the substrate layer 10, the first reflecting portion 410 shields the light shielding portion 320. The first reflection part 410 may cover a part of the lower surface of the light shielding part 320, or may cover the lower surface of the light shielding part 320 completely. By shielding the light shielding portion 320 by the first reflective layer 40, the light emitted to the light shielding portion 320 is reflected back by the first reflective layer 40 and is reflected toward the light emitting layer 20.
The second reflective layer 50 is disposed between the light-emitting layer 20 and the substrate layer 10, and the second reflective layer 50 includes a second reflective portion 510, where the orthographic projection of the first reflective portion 410 on the substrate layer 10 is at least partially located in the orthographic projection of the second reflective portion 510 on the substrate layer 10, and the second reflective portion 510 reflects at least part of the light reflected by the first reflective portion 410 toward the light-transmitting region 310. At least a part of the reflective surface of the first reflective part 410 and at least a part of the reflective surface of the second reflective part 510 are disposed opposite to each other. As can be seen from the orthographic projection of the first reflecting portion 410 on the substrate layer 10 and the orthographic projection of the second reflecting portion 510 on the substrate layer 10, at least a portion of the light reflected by the first reflecting portion 410 can be directed to the second reflecting portion 510, and the second reflecting portion 510 reflects the light to the transparent region 310, so as to increase the amount of light transmitted by the transparent region 310.
The area blocked by the light shielding portion 320 may be understood as a non-light-transmitting area, and in order to increase the light utilization rate of the non-light-transmitting area, the forward projection area of the first reflecting portion 410 on the substrate layer 10 may be equal to the forward projection area of the light shielding portion 320 on the substrate layer 10, that is, the first reflecting portion 410 completely covers the lower surface of the light shielding portion 320, and the light emitted to the light shielding portion 320 is completely reflected back by the first reflecting portion 410. Thus, the first reflecting portions 410 are also arranged in matrix.
Further, the front projection area of the first reflecting portion 410 on the substrate layer 10 may be equal to the front projection area of the second reflecting portion 510 on the substrate layer 10, so that the light reflected by the first reflecting portion 410 can be more directed to the second reflecting portion 510. Of course, the orthographic projection area of the second reflecting portion 510 on the substrate layer 10 may be slightly larger than the orthographic projection area of the first reflecting portion 410 on the substrate layer 10, and more light may be reflected to the light-transmitting region 310 by the second reflecting portion 510.
In this embodiment, the light passing through the light emitting layer 20 is directed to the color film layer 30, and exits through the light transmitting region 310 of the color film layer 30, so as to form a display image. The light emitted from the light emitting layer 20 further has a portion directed to the light shielding portion 320, and the front projection of the first reflecting portion 410 on the substrate layer 10 is at least partially located in the front projection of the light shielding portion 320 on the substrate layer 10, so that it is known that the first reflecting portion 410 is at least partially opposite to the corresponding arrangement of the light shielding portion 320, and the light directed to the light shielding portion 320 is at least partially reflected back by the first reflecting portion 410. The front projection of the first reflecting portion 410 on the substrate layer 10 is located in the front projection of the second reflecting portion 510 on the substrate layer 10, and it is also known that the second reflecting portion 510 is disposed opposite to the first reflecting portion 410, and the light passing through the first reflecting portion 410 can be directed to the second reflecting portion 510. The second reflecting portion 510 reflects the light to the light transmitting area 310, and after the light is reflected by the second reflecting portion 510, the number of light emitted from the light transmitting area 310 is increased, so that the light emitting brightness of the display is improved.
Since the first reflecting portion 410 mainly reflects the lower surface and the second reflecting portion 510 mainly reflects the upper and lower surfaces, this portion of the surface will be referred to as a reflecting surface hereinafter for convenience of understanding. The reflecting surface of the first reflecting portion 410 and the reflecting surface of the second reflecting portion 510 may be both planar, and the light emitted from the light emitting layer 20 has a certain field of view, and the emitted light has an included angle with the reflecting surface of the first reflecting portion 410. Some of the light rays have an included angle of 0 ° to 90 ° with the reflecting surface of the first reflecting portion 410, and the light rays can be smoothly emitted through the light-transmitting region 310 after passing through the second reflecting portion 510. A portion of the light rays are perpendicular to the reflective surface of the first reflective portion 410, i.e., at an angle of 90 ° to the reflective surface of the first reflective portion 410. In this case, when the light is reflected by the first reflecting portion 410 and is directed to the second reflecting portion 510, the angle between the light and the second reflecting portion 510 is also 90 °, and at this time, the light is reflected by the second reflecting portion 510 and is directed to the first reflecting portion 410 again, so that the light propagates back and forth between the first reflecting portion 410 and the second reflecting portion 510, and the light is difficult to be directed to the light transmitting region 310.
Therefore, when the reflecting surfaces of the first reflecting portion 410 and the second reflecting portion 510 are both planar, the light utilization efficiency can be effectively improved, but part of the light emitted vertically is difficult to be fully utilized.
In order to improve the light utilization, at least a portion of the reflective surfaces of the second reflective portion 510 and at least a portion of the reflective surfaces of the first reflective portion 410 form an included angle therebetween, and the included angle is between 0 ° and 90 °. It can be seen that at least part of the reflective surfaces of the first reflective part 410 and at least part of the reflective surfaces of the second reflective part 510 are inclined with respect to each other. By the mutually inclined arrangement, the light rays emitted to the second reflecting portion 510 through the first reflecting portion 410 also have a certain inclination angle, so that the second reflecting portion 510 can smoothly reflect the light rays to the light transmitting region 310, the utilization rate of the light rays is improved, and the light rays are prevented from being reflected and transmitted back and forth between the first reflecting portion 410 and the second reflecting portion.
There are various designs for the structures of the first and second reflecting portions 410 and 510. For example, the reflective surface of the first reflective portion 410 is a plane, and at least a portion of the reflective surface of the second reflective portion 510 is an arc surface. Thus, an included angle is formed between the reflective surface of the first reflective portion 410 and at least a portion of the reflective surface of the second reflective portion 510. The light of the light-emitting layer 20 is reflected by the plane, and is directed to the arc surface, and the arc surface reflects the light again, and the arc surface has the effect of scattering the light obliquely upwards. The light is reflected toward the light-transmitting region 310 by reflection from the arcuate surface. There may be other first reflective portions 410 adjacent to the light reflected by the arcuate surface, and the other first reflective portions 410 and the second reflective portions 510 direct the light to the light transmissive region 310.
In addition, the reflecting surface of the first reflecting portion 410 may be an arc surface, and the reflecting surface of the second reflecting portion 510 may be a plane surface. The light of the light-emitting layer 20 is directed to the arc surface, reflected to the plane by the arc surface, and then reflected to the light-transmitting region 310 by the plane.
In order to better improve the light utilization rate, the reflecting surface of the second reflecting portion 510 facing the first reflecting portion 410 is far away from the first reflecting portion 410, and the reflecting surface of the second reflecting portion 510 facing the first reflecting portion 410 is a plane. In this case, the reflecting surface of the first reflecting portion 410 is a plane, the reflecting surface of the lower side of the second reflecting portion 510 is concave downward, the second reflecting portion 510 has the function of collecting light, reducing the horizontal scattering of the light by the second reflecting portion 510, and making the light exit obliquely upward after passing through the second reflecting portion 510. For example, the second reflecting portion 510 has a hemispherical structure.
In addition, by the concave design of the reflective surface of the second reflective portion 510 toward the first reflective portion 410, the light passing through the second reflective portion 510 can be scattered around in the obliquely upward direction, and the display image can be seen at the edge position of the display module, thereby improving the viewing angle range. That is, by designing the second reflecting portion 510, the angle of the light beam directed to the second reflecting portion 510 can be changed, so that the angle of the light beam is deflected to the surrounding, and the angle of view is increased.
Of course, the second reflecting portion 510 may have other structures, for example, the reflecting surface of the second reflecting portion 510 is protruded toward the first reflecting portion 410. In this case, the first reflecting portion 410 may have a planar structure, and the light beam may be reflected by the first reflecting portion 410 and then directed to the second reflecting portion 510, and the reflecting surface of the second reflecting portion 510 may scatter the light beam around.
In one aspect, the display module further includes an insulating layer 60 and an encapsulation layer 71, where the insulating layer 60 is disposed between the substrate layer 10 and the light-emitting layer 20, and the light-emitting layer 20 is generally provided with some lines, so as to protect the lines of the light-emitting layer 20 and prevent the lines connected to the light-emitting layer 20 from being shorted, and the insulating layer 60 is provided. The insulating layer 60 may be silicon oxide or silicon nitride.
After the insulating layer 60 is disposed, in order to facilitate the disposition of the second reflective portion 510, a recess 610 may be disposed in the insulating layer 60 corresponding to the light shielding portion 320, where the recess 610 is disposed opposite to the first reflective portion 410, the second reflective portion 510 is disposed in the recess 610, and the encapsulation layer 71 is disposed between the light emitting layer 20 and the first reflective layer 40. The encapsulation layer 71 covers the light-emitting layer 20, and the light-emitting layer 20 is protected by the arrangement of the encapsulation layer 71, so that dust, water vapor and the like are prevented from entering the light-emitting layer 20.
In order to make the structure more compact, a groove 321 is disposed on a side of the light shielding portion 320 facing the light emitting layer 20, and the first reflecting portion 410 is disposed in the groove 321. Specifically, a filter film is disposed between adjacent light shielding portions 320, that is, a filter film is disposed in the light transmitting region 310, a groove 321 is formed between the filter film and the light shielding portions 320, and the first reflection portion 410 is disposed in the groove 321. In this way, the position space of the light shielding portion 320 is fully utilized, and the first reflecting portion 410 is provided without increasing the thickness. In order to make the structure more uniform, the reflection surface of the first reflection part 410 is a plane, and the lower surface of the first reflection part 410 and the lower surface of the filter film are in the same plane.
Referring to fig. 11, in addition to the foregoing, the first reflective layer 40 has another position structure, the display module further includes a flat layer 73, the flat layer 73 is disposed between the color film layer 30 and the encapsulation layer 71, and the first reflective layer 40 is disposed between the encapsulation layer 71 and the flat layer 73. Accordingly, a flat layer 73 is disposed between the first reflective layer 40 and the color film layer 30, and the first reflective layer 40 and the color film layer 30 are spaced apart from each other by a certain distance. Thus, the structure of the light shielding portion 320 is not required to be improved, and the influence on the overall structure of the display module is small.
In the present application, the light-emitting layer 20 has at least two structural designs, wherein one of the two structural designs is that the light-emitting layer 20 includes an anode layer, a light-emitting layer and a cathode layer, the light-emitting layer is disposed between the anode layer and the cathode layer, the anode layer is disposed facing the second reflective layer 50, the cathode layer is disposed facing the first reflective layer 40, and the first reflective layer 40 and the second reflective layer 50 are specular reflective layers. The light-emitting layer 20 itself is capable of emitting light, for example, the light-emitting layer 20 is an OLED layer, and the light-emitting layer emits light by forming a potential difference between the anode layer and the cathode layer, which can be understood as a quantum well. In this case, the first reflection layer 40 and the second reflection layer 50 are formed as specular reflection layers, and the reflection effect can be improved. For example, the first reflective layer 40 and the second reflective layer 50 are provided as a silver layer or a nickel layer, or the like. For example, the surface of the second reflecting portion 510 away from the first reflecting portion 410 is an arc surface, and the surface of the second reflecting portion 510 facing the first reflecting portion 410 is a plane, and at this time, in order to fully utilize the reflection effect of the arc surface, the arc surface may be a specular reflection surface, and the plane may be a semi-reflective semi-transparent surface.
Referring to fig. 12, another design structure is that the display module further includes a light emitting device 74, the light emitting layer 20 is a liquid crystal layer, the light emitting device 74 is disposed on a side of the second reflective layer 50 away from the light emitting layer 20, the first reflective layer 40 is a specular reflective layer, and the second reflective layer 50 is a transflective layer. The light emitting device 74 is disposed below the second reflective layer 50, and light emitted from the light emitting device 74 is emitted to the light emitting layer 20 through the second reflective layer 50, and the light is emitted to the first reflective layer 40 through the liquid crystal molecules by controlling the deflection angle of the liquid crystal molecules in the light emitting layer 20. In order to ensure that the light of the light emitting device 74 can smoothly pass through the second reflective layer 50, the second reflective layer 50 is configured as a transflective layer. In this manner, the second reflective layer 50 is capable of both ensuring light transmission from the light emitting device 74 and directing light reflected from the first reflective layer 40 toward the light transmissive region 310.
Example two
Referring to fig. 2 to 10 and fig. 13, the present application further provides a method for manufacturing a display module, which includes:
step S10, forming a second reflecting layer on the substrate layer, wherein the second reflecting layer comprises a second reflecting part. Providing a reflective material layer on the substrate layer 10, etching the reflective material layer to form a second reflective layer, the second reflective layer including a second reflective portion 510; the substrate layer 10 may be glass or sapphire, or may be plastic or metal plate. The base layer 10 is used to support the overall structure. Specifically, the insulating layer 60 may be first disposed on the base layer 10, and the insulating layer 60 may be etched to form the recess groove 610. The second reflective part 510 is formed by covering the depressed groove 610 with the reflective material layer 520 and etching the reflective material layer 520.
Step S20, forming a light emitting layer on the second reflecting layer; the light-emitting layer 20 is used for emitting light, and the light-emitting layer 20 can emit light itself or emit light from other light-emitting devices 74. For example, the light-emitting layer 20 is an OLED layer, and the OLED layer itself emits light. Alternatively, the light-emitting layer 20 is a liquid crystal layer, and the light-emitting device 74 of the display module emits light toward the liquid crystal layer and emits light through the liquid crystal layer.
Step S30, forming a first reflecting layer on the light emergent layer, wherein the first reflecting layer comprises a first reflecting part; a reflective film layer 420 is disposed on the light-emitting layer 20, and the reflective film layer 420 is etched to form a first reflective layer, which includes a first reflective portion 410; the materials of the reflective material layer 520 and the reflective film layer 420 may be the same or different. For example, in the case where the light emitting layer 20 is capable of emitting light, the reflective material layer 500 and the reflective film layer 420 may be the same, that is, the first reflective part 410 and the second reflective part 510 are the same, and light is transmitted in the light emitting layer. For example, when the light-emitting layer 20 does not emit light, the reflective material layer 520 is made of a semi-reflective material and the reflective film layer 420 is made of a semi-reflective material, the reflective film layer 420 is made of a specular reflective material, the light is transmitted through the second reflective portion 510 and then directed to the first reflective portion 410, and after passing through the first reflective portion 410, the light is directed to the second reflective portion 510 again, and the light can be reflected to the light-transmitting region 310 by utilizing the semi-reflective and semi-transmissive characteristics of the second reflective portion 510.
Step S40, forming a shading part and a color film layer on the first reflecting layer, wherein the color film layer is provided with a plurality of light transmission areas, and the shading part is formed between the adjacent light transmission areas; a light shielding layer is formed on the second reflecting portion 510, the light shielding layer is etched to form a light shielding portion 320, the light shielding portion 320 is a black matrix, and the black matrix separates the areas of the color film layer to form a plurality of light transmitting areas. The front projection of the first reflecting portion 410 on the substrate layer 10 is at least partially located in the front projection of the light shielding portion 320 on the substrate layer 10, and the front projection of the first reflecting portion 410 on the substrate layer 10 is located in the front projection of the second reflecting portion 510 on the substrate layer 10.
In this embodiment, the light passing through the light emitting layer 20 is directed to the color film layer 30, and exits through the light transmitting region 310 of the color film layer 30, so as to form a display image. The light emitted from the light emitting layer 20 further has a portion directed to the light shielding portion 320, and the front projection of the first reflecting portion 410 on the substrate layer 10 is at least partially located in the front projection of the light shielding portion 320 on the substrate layer 10, so that it is known that the first reflecting portion 410 is at least partially opposite to the corresponding arrangement of the light shielding portion 320, and the light directed to the light shielding portion 320 is at least partially reflected back by the first reflecting portion 410. The front projection of the first reflecting portion 410 on the substrate layer 10 is located in the front projection of the second reflecting portion 510 on the substrate layer 10, and it is known that the second reflecting portion 510 is disposed opposite to the first reflecting portion 410, and the light passing through the first reflecting portion 410 can be directed to the second reflecting portion 510. The second reflecting portion 510 reflects the light to the light transmitting area 310, and after the light is reflected by the second reflecting portion 510, the number of light emitted from the light transmitting area 310 is increased, so that the light emitting brightness of the display is improved.
Example III
Referring to fig. 14, the present application further provides a display device, where the display device includes a housing and a display module as described above, the display module is disposed in the housing, and the housing is used for protecting the display module. The display module further includes a driving circuit layer 72, where the driving circuit layer 72 is disposed between the substrate layer 10 and the second reflective layer 50. The driving circuit layer 72 may be a thin film transistor layer, and the light emitting layer 20 may be connected to the thin film transistor layer by way of openings, and an electrical signal is provided to the light emitting layer 20 through the thin film transistor to drive the light emitting layer 20 to emit light.
The embodiments and beneficial effects of the display device refer to the schemes of the display module, and are not described herein.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. The utility model provides a display module assembly, the display module assembly includes stratum basale and play optical layer, it locates to go out optical layer the top of stratum basale, the display module assembly still includes color film layer, color film layer locates go out optical layer deviates from one side of stratum basale, color film layer has a plurality of printing opacity district, a plurality of be provided with the shading portion between the printing opacity district, its characterized in that, the display module assembly still includes:
the first reflecting layer is arranged between the light emitting layer and the color film layer, and comprises a first reflecting part, wherein the orthographic projection of the first reflecting part on the basal layer is at least partially positioned in the orthographic projection of the shading part on the basal layer;
the second reflection layer is arranged between the light emitting layer and the substrate layer, the second reflection layer comprises a second reflection part, the orthographic projection of the first reflection part on the substrate layer is at least partially positioned in the orthographic projection of the second reflection part on the substrate layer, and the second reflection part reflects the reflected light rays passing through the first reflection part at least partially towards the light transmission region.
2. The display module of claim 1, wherein at least a portion of the reflective surface of the second reflective portion is disposed at an angle to at least a portion of the reflective surface of the first reflective portion, the angle being between 0 ° and 90 °.
3. The display module assembly of claim 1, wherein the reflective surface of the first reflective portion is planar and at least a portion of the reflective surface of the second reflective portion is arcuate.
4. A display module according to claim 3, wherein the second reflective portion is recessed toward the first reflective portion away from the reflective surface of the first reflective portion; the reflecting surface of the second reflecting part facing the first reflecting part is a plane.
5. The display module of any one of claims 1 to 4, further comprising an insulating layer and a packaging layer, wherein the insulating layer is disposed between the base layer and the light-emitting layer, the insulating layer is provided with a recess corresponding to the light-shielding portion, the second reflecting portion is disposed in the recess, and the packaging layer is disposed between the light-emitting layer and the first reflecting layer.
6. The display module assembly of claim 5, wherein a side of the light shielding portion facing the light emitting layer is provided with a groove, and the first reflecting portion is disposed in the groove.
7. The display module of claim 5, further comprising a planarization layer disposed between the color film layer and the encapsulation layer, wherein the first reflective layer is disposed between the encapsulation layer and the planarization layer.
8. The display module of claim 1, wherein the light-emitting layer comprises an anode layer, a light-emitting layer, and a cathode layer, the light-emitting layer is disposed between the anode layer and the cathode layer, the anode layer is disposed facing the second reflective layer, the cathode layer is disposed facing the first reflective layer, and the first reflective layer and the second reflective layer are specular reflective layers;
or alternatively
The display module further comprises a light emitting device, the light emitting layer is a liquid crystal layer, the light emitting device is arranged on one side, far away from the light emitting layer, of the second reflecting layer, the first reflecting layer is a specular reflecting layer, and the second reflecting layer is a semi-reflection semi-transparent layer.
9. The manufacturing method of the display module is characterized by comprising the following steps of:
forming a second reflective layer on the base layer, the second reflective layer including a second reflective portion;
forming a light emitting layer on the second reflecting layer;
forming a first reflecting layer on the light emergent layer, wherein the first reflecting layer comprises a first reflecting part; the method comprises the steps of carrying out a first treatment on the surface of the
Forming a light shielding part and a color film layer on the first reflecting layer, wherein the color film layer is provided with a plurality of light transmission areas, and the light shielding part is formed between adjacent light transmission areas; the front projection of the first reflecting part on the basal layer is at least partially positioned in the front projection of the shading part on the basal layer, and the front projection of the first reflecting part on the basal layer is positioned in the front projection of the second reflecting part on the basal layer.
10. A display device comprising a housing and a display module according to any one of claims 1 to 8, the display module being arranged in the housing, the display module further comprising a drive line layer arranged between the substrate layer and the second reflective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310783093.9A CN116723742A (en) | 2023-06-28 | 2023-06-28 | Display module, manufacturing method thereof and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310783093.9A CN116723742A (en) | 2023-06-28 | 2023-06-28 | Display module, manufacturing method thereof and display device |
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| CN115407544A (en) * | 2022-08-19 | 2022-11-29 | 京东方科技集团股份有限公司 | Reflective display panel and display device |
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| JP2003084137A (en) * | 2001-07-02 | 2003-03-19 | Sumitomo Chem Co Ltd | Translucent semi-reflective polarizer and application of the same to optical device |
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| CN110137235A (en) * | 2019-05-31 | 2019-08-16 | 京东方科技集团股份有限公司 | A kind of preparation method of display panel, display panel and display device |
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