CN114509840A - Diaphragm, display screen and electronic equipment - Google Patents
Diaphragm, display screen and electronic equipment Download PDFInfo
- Publication number
- CN114509840A CN114509840A CN202210125258.9A CN202210125258A CN114509840A CN 114509840 A CN114509840 A CN 114509840A CN 202210125258 A CN202210125258 A CN 202210125258A CN 114509840 A CN114509840 A CN 114509840A
- Authority
- CN
- China
- Prior art keywords
- layer
- phase retardation
- display panel
- polarized light
- retardation layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000010287 polarization Effects 0.000 claims abstract description 32
- 238000003384 imaging method Methods 0.000 claims description 29
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 28
- 230000001603 reducing effect Effects 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 26
- 239000010408 film Substances 0.000 description 87
- 239000012528 membrane Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses diaphragm, display screen and electronic equipment. The film comprises a polarizing film assembly and a first phase delay layer, wherein the polarizing film assembly comprises a first side and a second side which are opposite, the first side is used for being arranged on the display panel, the polarizing film assembly is used for changing the polarization direction of first polarized light which passes through the polarizing film assembly, and the first polarized light is generated based on ambient light; the first phase retardation layer is disposed on the second side of the polarizing film assembly, and the first phase retardation layer is used for changing the polarization direction of second polarized light passing through the first phase retardation layer, and the second polarized light is generated based on light emitted by the display panel. In this way, the polarizing film assembly changes the polarization direction of the first polarized light passing through the polarizing film assembly, and reduces the reflection of the incident ambient light by the display panel; the first phase delay layer changes the polarization direction of the second polarized light passing through the first phase delay layer, and the phenomenon that light rays emitted by the display panel are reflected by a cover plate of the electronic equipment and then enter the display panel again to influence the camera effect is avoided.
Description
Technical Field
The application relates to the technical field of display devices, in particular to a diaphragm, a display screen and electronic equipment.
Background
In order to meet the more extreme screen display effect required by people on electronic products, the electronic products are gradually applied with a design scheme of a camera under a screen. However, when the camera of the electronic product works, the pixels of the display panel area vertically corresponding to the camera are lighted, and the emitted light finally enters the camera through the reflection of the surface of the glass cover plate, so that the imaging effect of the camera is affected.
Disclosure of Invention
The embodiment of the application provides a diaphragm, a display screen and an electronic device.
The film sheet of the embodiment of the present application includes a polarizing film assembly and a first phase retardation layer. The polarizing film assembly includes opposing first and second sides, the first side for disposing on a display panel, the polarizing film assembly for changing a polarization direction of first polarized light passing through the polarizing film assembly, the first polarized light being generated based on ambient light; the first phase retardation layer is disposed on the second side of the polarizer assembly, and the first phase retardation layer is configured to change a polarization direction of a second polarized light passing through the first phase retardation layer, the second polarized light being generated based on light emitted from the display panel.
The diaphragm of the embodiment of the application changes the polarization direction of the first polarized light passing through the polarizing film assembly by arranging the polarizing film assembly so as to reduce the reflection of the display panel to the ambient light under the irradiation of the ambient light; and the polarization direction of the second polarized light passing through the first phase delay layer is changed by arranging the first phase delay layer, so that the phenomenon that the light rays emitted by the display panel are reflected by a cover plate of the electronic equipment and then enter the display panel again to influence the imaging effect of shooting is avoided.
The display screen of the embodiment of the application comprises the membrane and the display panel in any one of the above embodiments, wherein the membrane covers the display panel.
The display screen in the embodiment of the application covers the display panel through the membrane, so that the influence of ambient light irradiation and self-luminescence of the display panel on the shooting effect can be eliminated through the membrane.
The electronic equipment of the embodiment of the application comprises the display screen and the imaging device in any one of the above embodiments, wherein the imaging device is arranged on one side of the display panel, which is far away from the diaphragm.
The electronic equipment of this application embodiment through set up imaging device on one side that deviates from the apron at display panel for the position that corresponds the imaging device installation on the display screen also remains the screen display function, and electronic equipment's display effect is better.
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 structural diagram of a display screen in an embodiment of the present application;
FIG. 2 is a schematic view of a scene where light of a second polarization passes through a display screen in an embodiment of the present application;
FIG. 3 is a schematic view of a polarizing film assembly according to an embodiment of the present application;
FIG. 4 is a schematic view of a scene where light of a first polarization passes through a display screen in an embodiment of the present application;
FIG. 5 is a schematic diagram of another scene of the second polarized light passing through the display screen in the embodiment of the present application
FIG. 6 is a schematic diagram illustrating a comparison between an image captured by an electronic device without a film and an image captured by an electronic device with a film applied thereto according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a reflection reducing layer in an embodiment of the present application;
FIG. 8 is a schematic view of another embodiment of a reflection reducing layer;
fig. 9 is a schematic structural view of a cover plate provided with a reflection reducing layer according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Description of the main element symbols:
the display device comprises an electronic device 1000, a display screen 100, a film 10, a polarizing film assembly 11, a first side 110, a second side 111, a polarizing layer 112, a second phase retardation layer 113, a first support layer 114, a second support layer 115, a first pressure sensitive adhesive 116, a second pressure sensitive adhesive 117, a first phase retardation layer 12, a third pressure sensitive adhesive 13, a fourth pressure sensitive adhesive 14, a third support layer 15, a display panel 20, a cover plate 30, a antireflection layer 31, an optical adhesive 40 and an imaging device 200.
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 or similar 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 accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1, 2 and 3, the present application provides a film 10, wherein the film 10 includes a polarizing film assembly 11 and a first phase retardation layer 12. The polarizing film assembly 11 includes opposite first and second sides 110 and 111, the first side 110 for being disposed on the display panel 20, and the polarizing film assembly 11 for changing a polarization direction of first polarized light passing through the polarizing film assembly 11, the first polarized light being generated based on ambient light. A first phase retardation layer 12, the first phase retardation layer 12 being disposed on the second side 111 of the polarizing film assembly 11, the first phase retardation layer 12 for changing a polarization direction of a second polarized light passing through the first phase retardation layer 12, the second polarized light being generated based on the light emitted from the display panel 20.
The film 10 of the embodiment of the present application changes the polarization direction of the first polarized light passing through the polarizer assembly 11 by providing the polarizer assembly 11, so as to reduce the reflection of the display panel 20 to the ambient light under the irradiation of the ambient light; and changing the polarization direction of the second polarized light passing through the first phase retardation layer 12 by arranging the first phase retardation layer 12, so as to prevent the light emitted by the display panel 20 from being reflected by the cover plate 30 of the electronic device 1000 and then re-entering the display panel 20 to affect the imaging effect of the shooting.
The terms "first" and "second" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
With the development of communication technology, electronic products such as smart phones, tablet computers, smart watches and the like are continuously being developed and become indispensable tools for people gradually. When a consumer faces an electronic product with a full-screen purpose, the consumer gradually requires that the electronic product has a better display effect, and the electronic product applies a design scheme of a camera under a screen in order to achieve the display effect of a full-screen.
However, in this design scheme, when the camera of the electronic product is in operation, after the pixels in the area of the display panel 20 vertically corresponding to the camera are lit, the emitted light enters the camera installed under the display screen 100 through the reflection of the surface of the glass cover plate 30 of the electronic product, so that the imaging effect of the camera is affected. For example, pixel routing and lighting corresponding horizontal and vertical lines may occur on a shot picture, which greatly affects the shooting experience of a user.
Then, in order to solve the above problem, in the embodiment of the present application, by improving the structure of the film 10 covering the display panel 20 in the display screen 100 of the electronic device 1000 (as shown in fig. 10), the polarizing film assembly 11 and the first phase retardation layer 12 are designed, so that the influence of ambient light and self-luminescence of the display panel 20 on the shooting of the electronic device 1000 is reduced. In particular, the electronic device 1000 in the present application is illustrated by taking a smart phone with an off-screen camera design as an example, the electronic device 1000 may include a display screen 100, and the display screen 100 includes a cover 30, a display panel 20, and a membrane 10 in the present application.
Specifically, the first side 110 of the polarized film assembly 11 is close to the display panel 20 of the electronic device 1000, and the second side 111 is close to the external environment. The first side 110 of the polarizer assembly 11 may be disposed on the display panel 20 by an adhesive, so that the connection between the polarizer assembly 11 and the display panel 20 is more hermetically sealed. It is understood that the polarizer assembly 11 is disposed to effectively resist the influence of ambient light and reduce the disturbance in display.
The material of the polarizing film assembly 11 may include a polyvinyl alcohol film, and the polarizing film assembly 11 may perform a polarizing function in the film 10, for example, may convert external circularly polarized ambient light into linearly polarized light; the material of the polarizer assembly 11 may also include birefringent crystals, such as calcite, quartz, etc., and may also include mica sheets, etc., which may be made into quarter-wave plates. When light with a certain wavelength vertically enters and passes through the quarter-wave plate, the phase difference between the emitted ordinary light and the emitted extraordinary light is a quarter-wave, so that the polarizing film assembly 11 including the quarter-wave plate can also adjust the phase of the incident light, such as converting linearly polarized light into circularly polarized light or elliptically polarized light, or converting circularly polarized light or elliptically polarized light into linearly polarized light.
The first phase retardation layer 12 may also be a quarter-wave plate, and in some embodiments, the first phase retardation layer 12 may be disposed on the polarizing film assembly 11 in a stacked manner, and the first phase retardation layer 12 is disposed on the second side 111 of the polarizing film assembly 11, that is, the first phase retardation layer 12 is closer to the external environment, and the first polarized light firstly passes through the first phase retardation layer 12 when entering. The first phase retardation layer 12 may also change the polarization direction of the second polarized light passing through the first phase retardation layer 12, and the second polarized light may be generated by light emitted by the display panel 20 corresponding to the pixel lighting when the user uses the electronic device 1000 to take an image. Due to the arrangement relationship of the first phase retardation layer 12 and the polarizer assembly 11, it can be understood that the light emitted from the display panel 20 first passes through the polarizer assembly 11.
In one embodiment, the polarized film assembly 11 and the first phase retardation layer 12 can eliminate the interference of the ambient light, and improve the display effect of the electronic device 1000. At this time, the first polarized light generated by the ambient light is circularly polarized light with a uniform angle, and after the first polarized light passes through the first phase retardation layer 12, the first polarized light still remains circularly polarized light with a uniform angle, and after passing through the polarizing film assembly 11, the first polarized light becomes right-handed circularly polarized light, and after being reflected by the surface of the display panel 20, the handedness is changed, and at this time, the first polarized light is mainly reflected by the metal cathode, and the first polarized light becomes left-handed circularly polarized light, and at this time, when the first polarized light passes through the polarizing film assembly 11 again, the first polarized light which is left-handed circularly polarized light is changed in polarization direction by the polarizing film assembly 11 again, for example, the first polarized light becomes polarized light perpendicular to the transmission axis of the element playing a role of polarization in the polarizing film assembly 11, so that the first polarized light cannot pass through the polarizing film assembly 11, thereby preventing the ambient light from affecting the imaging effect of the electronic device 1000 after being reflected by the display panel 20.
In another embodiment, as shown in fig. 2, the film 10 can prevent the light emitted from the display panel 20 from being reflected by the cover 30 of the display screen 100 of the electronic device 1000 as much as possible, so as to prevent the electronic device 1000 from having poor imaging effect. At this time, the second polarized light generated by the light emitted by the display panel 20 is converted into linearly polarized light after passing through the polarizing film assembly 11, and is converted into right-handed circularly polarized light after passing through the first phase retardation layer 12, and is converted into left-handed circularly polarized light after being reflected by the cover plate 30 of the electronic device 1000, and then is converted into polarized light perpendicular to the transmission axis of the element having a polarizing effect in the polarizing film assembly 11 after passing through the first phase retardation layer 12 again, so that the second polarized light cannot pass through the polarizing film assembly 11 and further cannot enter the display panel 20 again, and thus the light generated by the display panel 20 returns to the display panel 20 to affect the imaging effect of the electronic device 1000.
It should be noted that the circularly polarized light mentioned in the above two embodiments is a special elliptically polarized light, the polarization plane of which rotates with a circular frequency with respect to the propagation direction with time, and the locus of the end of the light vector lies on a circle. At this time, the circularly polarized light is divided into left circularly polarized light and right circularly polarized light according to the rotation direction of the light vector.
Referring to fig. 3 and 4, in some embodiments, the polarizing film assembly 11 includes a polarizing layer 112 and a second phase retardation layer 113 stacked together, the polarizing layer 112 is located between the second phase retardation layer 113 and the first phase retardation layer 12, and in a case where the first polarized light is reflected by the display panel 20, the second phase retardation layer 113 is configured to change a polarization direction of the first polarized light, so that the first polarized light cannot be emitted through the polarizing layer 112.
Thus, the polarizing layer 112 can be matched with the second phase retardation layer 113, so as to prevent the first polarized light from reflecting from the display panel 20 and causing a large imaging interference to the electronic device 1000, which affects the user using the electronic device 1000.
Specifically, ambient light generated by the external environment may irradiate the display screen 100 of the electronic device 1000, and when the ambient light enters the display panel 20 of the display screen 100, the ambient light may be reflected by the metal cathode of the display panel 20, so as to reduce the display contrast and cause reading interference. In order to solve the above problem, the polarizing film assembly 11 may include a polarizing layer 112 and a second phase retardation layer 113, which are stacked to perform an antireflection function.
The material of the polarizing layer 112 may include polyvinyl alcohol, and the polarizing layer 112 may perform a polarizing function, for example, may convert ambient light of circularly polarized light into linearly polarized light; the second phase retardation layer 113 may include birefringent crystals, such as calcite, quartz, etc., and may also include mica sheets, etc., the second phase retardation layer 113 may be a quarter-wave plate, and when light with a certain wavelength vertically enters and passes through the quarter-wave plate, the outgoing ordinary light and abnormal light have a quarter-wave difference, so that the second phase retardation layer 113 may adjust the phase of the incident light, such as converting linearly polarized light into circularly polarized light or elliptically polarized light, or converting circularly polarized light or elliptically polarized light into linearly polarized light, etc.
As for the polarizing film assembly 11, as shown in fig. 3, after the ambient light passes through the polarizing layer 112, the first polarized light is converted into horizontal linearly polarized light, and is converted into right-handed circularly polarized light after passing through the second phase retardation layer 113, and is converted into left-handed circularly polarized light after being reflected by the metal cathode of the display panel 20, and after passing through the second phase retardation layer 113 again, the first polarized light is converted into polarized light perpendicular to the transmission axis of the polarizing layer 112, and the first polarized light at this time cannot pass through the polarizing layer 112 and is blocked in the polarizing film assembly 11, thereby playing a role in preventing the first polarized light from causing large imaging interference to the electronic device 1000 after being reflected from the display panel 20.
As shown in fig. 4, in one embodiment, based on the principle of antireflection of the polarizing film assembly 11, in the case that the polarizing layer 112 is located between the second phase retardation layer 113 and the first phase retardation layer 12, the ambient light still has a circular polarization with a uniform angle after passing through the first phase retardation layer 12, and becomes a linear polarization after passing through the polarizing layer 112 in the polarizing film assembly 11, and the first polarization becomes a right-handed circularly polarized light after passing through the second phase retardation layer 113, and then changes the rotary polarization into a left-handed circularly polarized light after being reflected by the surface of the display panel 20; when the first polarized light reflected by the display panel 20 passes through the polarizing film assembly 11 again, the first polarized light that is left-handed circularly polarized light is changed in polarization direction by the second phase retardation layer 113 again, and becomes polarized light perpendicular to the transmission axis of the polarizing layer 112, so that the first polarized light is blocked in the polarizing film assembly 11, thereby preventing the imaging effect of the electronic device 1000 from being affected after the ambient light is reflected by the display panel 20.
In some embodiments, as shown in fig. 5, in one embodiment, based on the cooperation of the polarizing film assembly 11 and the first phase retardation layer 12, light emitted from the display panel 20 can be prevented from being reflected by the cover 30 of the display screen 100 of the electronic device 1000 as much as possible, so as to prevent poor imaging effect of the electronic device 1000. At this time, the second polarized light generated by the light emitted by the display panel 20 is still circularly polarized light with uniform angles after passing through the second phase retardation layer 113, and then is converted into linearly polarized light after passing through the polarization layer 112, and is converted into right-handed circularly polarized light after passing through the first phase retardation layer 12, and after being reflected by the cover plate 30 of the electronic device 1000, the second polarized light changes its rotation direction into left-handed circularly polarized light, and then is converted into polarized light perpendicular to the transmission axis of the polarization layer 112 in the polarization film assembly 11 after passing through the first phase retardation layer 12 again, so that the second polarized light cannot pass through the polarization film assembly 11, is blocked in the polarization film assembly 11, and cannot enter the display panel 20 again, and thus the light generated by the display panel 20 returns to the lower side of the display panel 20 to affect the imaging effect of the electronic device 1000.
At this time, as shown in fig. 6, after the diaphragm 10 in the present application is applied, an imaging effect of the imaging device 200 of the electronic device 1000 is as shown in the right diagram of fig. 6, and it can be easily seen that, compared with the left diagram of fig. 6, the photographing becomes relatively clear, there is no pixel routing and lighting corresponding horizontal and vertical lines under the display panel 20, and the design scheme of the camera under the screen is applied, and at the same time, the influence of lighting the pixels by the display screen 100 is not affected.
Referring to fig. 1, in some embodiments, the polarizing film assembly 11 includes a first supporting layer 114 and a second supporting layer 115, the first supporting layer 114 and the second supporting layer 115 are respectively connected to two opposite sides of the polarizing layer 112, and the first supporting layer 114 is stacked on a side of the polarizing layer 112 facing away from the second phase retardation layer 113. In this manner, the first and second supporting layers 114 and 115 support and protect the polarizing layer 112.
Specifically, the first support layer 114 and the second support layer 115 may be made by stretching cellulose triacetate. The first supporting layer 114 and the second supporting layer 115 are arranged oppositely, the polarizing layer 112 is arranged between the first supporting layer 114 and the second supporting layer 115, and the first supporting layer 114 and the second supporting layer 115 are arranged in a stacked and connected mode, so that the polarizing layer 112 can be stably supported and protected by the first supporting layer 114 and the second supporting layer 115.
Referring to fig. 1, in some embodiments, the polarizing film assembly 11 includes a first pressure sensitive adhesive 116 and a second pressure sensitive adhesive 117, the first pressure sensitive adhesive 116 is laminated on a side of the second phase retardation layer 113 facing away from the display panel 20, and the second pressure sensitive adhesive 117 connects the second phase retardation layer 113 and the display panel 20. In this manner, first pressure sensitive adhesive 116 cooperates with second pressure sensitive adhesive 117 to dispose second side 111 of polarizer assembly 11 on display panel 20.
Specifically, the first pressure-sensitive adhesive 116 and the second pressure-sensitive adhesive 117 function as an adhesive, so that the second phase retardation layer 113 may be disposed on the display panel 20 using the second pressure-sensitive adhesive 117, and the polarizing layer 112 and the second phase retardation layer 113 may be adhered using the first pressure-sensitive adhesive 116, so that the polarizing film assembly 11 forms one body, enabling the second side 111 of the polarizing film assembly 11 to be disposed on the display panel 20.
Referring to fig. 1, in some embodiments, the film 10 includes a third pressure sensitive adhesive 13 and a fourth pressure sensitive adhesive 14 connected to the first phase retardation layer 12, the third pressure sensitive adhesive 13 is disposed on a side of the first phase retardation layer 12 facing away from the polarizing film assembly 11, and the fourth pressure sensitive adhesive 14 is stacked between the first phase retardation layer 12 and the polarizing film assembly 11. In this manner, the third pressure-sensitive adhesive 13 and the fourth pressure-sensitive adhesive 14 may function as adhesives to join the first phase retardation layer 12 and the polarizing film assembly 11, etc. together to form an integral structure of the film sheet 10.
Specifically, the third pressure-sensitive adhesive 13 is disposed on a side of the first phase retardation layer 12 facing away from the polarizing film assembly 11, so that the first phase retardation layer 12 can be bonded to the cover sheet 30 or other optical element. A fourth pressure sensitive adhesive 14 is disposed between the first phase retardation layer 12 and the polarizing film assembly 11 in a lamination such that the first phase retardation layer 12 and the polarizing film assembly 11 can be joined together to form an integral structure of the film 10.
Referring to fig. 1, in some embodiments, the film 10 further includes a third support layer 15, and the third support layer 15 is laminated on a side of the first phase retardation layer 12 facing away from the polarizing film assembly 11. In this way, the third support layer 15 supports and protects the first phase retardation layer 12.
Specifically, the third support layer 15 may be made by stretching cellulose triacetate. The first phase retardation layer 12 is disposed between the third support layer 15 and the polarizing film assembly 11, and the three are stacked and connected, so that the third support layer 15 can stably support and protect the first phase retardation layer 12.
Referring to fig. 1, the present application provides a display panel 100, where the display panel 100 includes a display panel 20 and a film 10 in any of the above embodiments, and the film 10 covers the display panel 20. In this manner, by covering the film 10 over the display panel 20, the film 10 can exclude the influence of ambient light irradiation and self-luminescence of the display panel 20 on the photographing effect.
Referring to fig. 1, in some embodiments, the display screen 100 may include a cover plate 30, and the cover plate 30 may be disposed on a side of the first phase retardation layer 12 facing away from the polarizing film assembly 11. Thus, the cover plate 30 can protect the membrane 10 from water and dust.
Specifically, the cover plate 30 may be made of transparent glass so as not to obstruct the transmission of light. The cover plate 30 may be glued together with the membrane 10 and the cover plate 30 may cover the membrane 10 so that the membrane 10 may be waterproofed by the cover plate 30 disposed thereon. A waterproof oca (optically Clear adhesive) optical glue 40 may also be disposed between the cover plate 30 and the membrane 10, for example, between the cover plate 30 and the first phase retardation layer 12, so as to further enhance the waterproof performance of the membrane 10.
Referring to fig. 7-9, in some embodiments, a reflection reducing layer 31 may be disposed on the cover plate 30, and the reflection reducing layer 31 is stacked on a surface of the cover plate 30 facing away from the first phase retardation layer 12. The antireflection layer 31 may be used to reduce the reflection of light emitted from the display panel 20 on the cover 30.
Thus, by providing the reflection reducing layer 31 on the cover plate 30, the reflection of light emitted by the display panel 20 through the interface between the cover plate 30 and the air can be reduced, so that the optical influence on the camera under the screen can be reduced.
Specifically, as shown in fig. 7 and 9, the refractive index of the cover plate 30 is denoted as n1, the refractive index of the inside of the screen body is denoted as n0, the refractive index of air is denoted as ns, and the antireflection layer 31 may be plated on the cover plate 30, and when the antireflection layer 31 is not provided, the difference between the refractive indexes of the cover plate 30 and the air is large, so that full emission occurs at the interface between the cover plate 30 and the air, and the emission light intensity is R0. When the antireflection layer 31 is added, the reflection interfaces become two, and one reflection layer is respectively formed between the cover plate 30 and the antireflection layer 31, between the antireflection layer 31 and the air, and the reflection light intensity is respectively R1 and R2. In the present application, in order to achieve that the sum of the reflected light intensities R1 and R2 is less than R0, the reflected light cancellation is achieved, and the transmitted light cancellation is achieved, the transmitted light cancellation needs to be processed by the principle of constructive cancellation of the antireflection layer 31.
It can be calculated by optical derivation that when the condition that the thickness d of the antireflection layer 31 is one quarter of the wavelength λ of the incident light and the refractive index n1 of the antireflection layer 31 is equal to (n0 ns) is satisfied, the reflected light is canceled and the transmitted light is constructive due to the continuity of the spectrum.
Since the wavelength band of visible light is relatively wide, the cover plate 30 needs to be coated with a reflection reducing layer 31 including multiple thin films to reduce the reflection of visible light in different wavelength bands. In the present application, the antireflection layer 31 may include seven layers, and each layer may be a plurality of high refractive nano-films. The light emitted from the display panel 20 can be reflected and superimposed by seven layers to perform diffraction cancellation, thereby achieving the purpose of reducing reflection. Wherein, the film layer 1 is close to the cover plate 30, the film layer 7 is close to the external environment, and the materials adopted by the film layers 1 to 7 are silicon dioxide, silicon nitride (Si3N4), silicon dioxide, silicon nitride and silicon dioxide, wherein the refractive index of the silicon dioxide is 1.53, and the refractive index of the silicon nitride material is about 1.97.
The reflection reducing layer 31 with the design scheme can well control the reflectivity of light emitted by the display panel 20 on the cover plate 30 within 1% through plating on the cover plate 30, and the bandwidth can cover 400nm-720nm full wave bands, so that the influence of reflected light in the screen is effectively inhibited, and besides the reflection of light emitted by the display panel 20 is reduced, when a user looks at the display screen 100 from the front side, the reflection reducing layer also has a good reflection reducing effect.
In particular, the solution of the above embodiment may be applied to other off-screen devices, such as off-screen Face ID, and the like. In addition, when the above-mentioned solution of plating the antireflection layer 31 on the cover plate 30 is applied, since the display screen 100 is a fixed RGB pixel and the wavelength of the emitted light is fixed, in some embodiments, the parameters of the film layers 1 to 7 in the antireflection layer 31 may be selectively adjusted without completely suppressing the visible light in the full-band of 400nm to 720 nm.
In one embodiment, after a user attaches a protective film on the side of the cover plate 30 away from the membrane 10, the antireflection layer on the surface of the cover plate 30 will fail, so for the case of film attachment, it is recommended to plate the antireflection layer 31 on the outer surface of the protective film, and at this time, the antireflection layer 31 is the same 7-layer film design.
Certainly, in other embodiments, the antireflection layer 31 may adopt a design of a film other than 7 films, the more the film layers have better inhibition effect on the visible light of the whole waveband, the less the film layers are, the better the inhibition effect on the specific wavelength may be, and the worse the inhibition effect on the specific wavelength may be; other materials may be selected for the film layer of the antireflection layer 31, and the application is not limited thereto.
Referring to fig. 6 and 10, an electronic device 1000 is provided according to an embodiment of the present disclosure, where the electronic device 1000 includes a display screen 100 and an imaging device 200. The imaging device 200 is arranged on the side of the display panel 20 facing away from the membrane 10. In this way, by disposing the imaging device 200 on the side of the display panel 20 away from the cover 30, the position of the display screen 100 corresponding to the installation of the imaging device 200 also retains the screen display function, and the display effect of the electronic device 1000 is better. By providing the display screen 100 including the membrane 10, it is made possible to reduce the influence of ambient light and light emission of the display panel 20 on the photographing of the imaging device 200.
Specifically, the imaging device 200 may include a camera, and the imaging device 200 is disposed on a side of the display panel 20 away from the film 10, so that the screen display effect of the electronic apparatus 1000 may be better, and a full screen display experience is provided for a user. Moreover, since the electronic device 1000 applies the display screen 100 including the membrane 10 in this application, the imaging effect of the imaging device 200 of the electronic device 1000 is as shown in the right diagram of fig. 6, and it can be easily seen that, compared with the left diagram of fig. 6, the shooting becomes relatively clear, there is no pixel routing and lighting corresponding horizontal and vertical lines under the display panel 20, and it is not affected by the lighting of the pixels by the display screen 100 while applying the design scheme of the camera under the screen.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present application. In this specification, schematic representations of the above terms 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: numerous 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 (10)
1. A diaphragm, comprising:
a polarizer assembly including opposing first and second sides, the first side for disposing on a display panel, the polarizer assembly for changing a polarization direction of first polarized light passing through the polarizer assembly, the first polarized light generated based on ambient light; and
a first phase retardation layer disposed on the second side of the polarizer assembly, the first phase retardation layer for changing a polarization direction of a second polarized light passing through the first phase retardation layer, the second polarized light being generated based on light emitted from the display panel.
2. The film according to claim 1, wherein the polarizing film assembly comprises a polarizing layer and a second phase retardation layer, the polarizing layer is disposed between the second phase retardation layer and the first phase retardation layer, and the second phase retardation layer is configured to change a polarization direction of the first polarized light when the first polarized light is reflected by the display panel, so that the first polarized light cannot be emitted through the polarizing layer.
3. The film according to claim 2, wherein the polarizing film assembly comprises a first supporting layer and a second supporting layer, the first supporting layer and the second supporting layer are respectively connected to two opposite sides of the polarizing layer, and the first supporting layer is stacked on one side of the polarizing layer, which faces away from the second retardation layer.
4. The film of claim 2, wherein the polarizer assembly comprises a first pressure sensitive adhesive disposed on a side of the second phase retardation layer facing away from the display panel and a second pressure sensitive adhesive connecting the second phase retardation layer and the display panel.
5. The film of claim 1, wherein the film comprises a third pressure sensitive adhesive and a fourth pressure sensitive adhesive attached to the first phase retardation layer, the third pressure sensitive adhesive is disposed on a side of the first phase retardation layer facing away from the polarizer assembly, and the fourth pressure sensitive adhesive is disposed between the first phase retardation layer and the polarizer assembly.
6. The film sheet of claim 1, further comprising a third support layer disposed in a stack on a side of the first phase retardation layer facing away from the polarizer assembly.
7. A display screen, comprising:
a display panel;
the film of any of claims 1-6, overlaid on the display panel.
8. A display screen as recited in claim 7, wherein the display screen includes a cover sheet that is layered on a side of the first phase retardation layer facing away from the polarizer assembly.
9. The display screen of claim 8, wherein the cover plate is provided with a reflection reducing layer, the reflection reducing layer is stacked on a surface of the cover plate facing away from the first phase retardation layer, and the reflection reducing layer is configured to reduce reflection of light emitted by the display panel on the cover plate.
10. An electronic device, comprising:
the display screen of any one of claims 7-9; and
and the imaging device is arranged on one side of the display panel, which is far away from the diaphragm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125258.9A CN114509840A (en) | 2022-02-10 | 2022-02-10 | Diaphragm, display screen and electronic equipment |
| PCT/CN2022/143728 WO2023151419A1 (en) | 2022-02-10 | 2022-12-30 | Film, display screen and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125258.9A CN114509840A (en) | 2022-02-10 | 2022-02-10 | Diaphragm, display screen and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114509840A true CN114509840A (en) | 2022-05-17 |
Family
ID=81552598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210125258.9A Pending CN114509840A (en) | 2022-02-10 | 2022-02-10 | Diaphragm, display screen and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114509840A (en) |
| WO (1) | WO2023151419A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116068693A (en) * | 2023-02-09 | 2023-05-05 | 深圳怡钛积科技股份有限公司 | Polarizing film |
| WO2023151419A1 (en) * | 2022-02-10 | 2023-08-17 | Oppo广东移动通信有限公司 | Film, display screen and electronic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000042467A1 (en) * | 1999-01-13 | 2000-07-20 | Seiko Epson Corporation | Display device and electronic watch |
| US20120037928A1 (en) * | 2010-08-13 | 2012-02-16 | Samsung Mobile Display Co., Ltd, | Anti-reflection film and foldable display device employing the same |
| CN106443861A (en) * | 2016-11-15 | 2017-02-22 | 信利光电股份有限公司 | Optical film and touch display screen |
| CN110208957A (en) * | 2019-05-31 | 2019-09-06 | 京东方科技集团股份有限公司 | Organic light emitting display panel and electronic equipment |
| CN212752310U (en) * | 2020-07-17 | 2021-03-19 | Oppo广东移动通信有限公司 | Electronic equipment, display module and cover plate assembly thereof |
| CN113744635A (en) * | 2020-05-30 | 2021-12-03 | 华为技术有限公司 | Flexible display device, manufacturing method thereof and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767105B (en) * | 2018-07-27 | 2021-01-22 | 京东方科技集团股份有限公司 | Display module and display device |
| CN111312768A (en) * | 2020-02-24 | 2020-06-19 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display panel |
| CN114509840A (en) * | 2022-02-10 | 2022-05-17 | Oppo广东移动通信有限公司 | Diaphragm, display screen and electronic equipment |
-
2022
- 2022-02-10 CN CN202210125258.9A patent/CN114509840A/en active Pending
- 2022-12-30 WO PCT/CN2022/143728 patent/WO2023151419A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000042467A1 (en) * | 1999-01-13 | 2000-07-20 | Seiko Epson Corporation | Display device and electronic watch |
| US20120037928A1 (en) * | 2010-08-13 | 2012-02-16 | Samsung Mobile Display Co., Ltd, | Anti-reflection film and foldable display device employing the same |
| CN106443861A (en) * | 2016-11-15 | 2017-02-22 | 信利光电股份有限公司 | Optical film and touch display screen |
| CN110208957A (en) * | 2019-05-31 | 2019-09-06 | 京东方科技集团股份有限公司 | Organic light emitting display panel and electronic equipment |
| CN113744635A (en) * | 2020-05-30 | 2021-12-03 | 华为技术有限公司 | Flexible display device, manufacturing method thereof and electronic equipment |
| CN212752310U (en) * | 2020-07-17 | 2021-03-19 | Oppo广东移动通信有限公司 | Electronic equipment, display module and cover plate assembly thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151419A1 (en) * | 2022-02-10 | 2023-08-17 | Oppo广东移动通信有限公司 | Film, display screen and electronic device |
| CN116068693A (en) * | 2023-02-09 | 2023-05-05 | 深圳怡钛积科技股份有限公司 | Polarizing film |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023151419A1 (en) | 2023-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110727142B (en) | Polarizer, display screen and electronic equipment | |
| EP2372806B1 (en) | Polarizer and organic electroluminescent device having the same | |
| US8848114B2 (en) | Controlling polarization for liquid crystal displays | |
| WO2023151419A1 (en) | Film, display screen and electronic device | |
| CN110133787B (en) | Polaroid, display module and mobile terminal | |
| US11527742B2 (en) | Organic light emitting diode display panel and display device having extinction structure | |
| US9075201B2 (en) | Polarization conversion mechanism and method thereof | |
| US20130002994A1 (en) | Integrating emi shiel in liquid crystal display devices | |
| KR101752442B1 (en) | Flat panel display | |
| WO2006036365A1 (en) | Projector with intensity-colour modulator | |
| CN113594217A (en) | Display panel, preparation method thereof and display device | |
| CN109324438A (en) | A kind of display panel and display device | |
| WO2020079883A1 (en) | Optical member and image display device | |
| CN113920866A (en) | Display device | |
| CN220584431U (en) | Circular polarizer and optical plate | |
| US20070236630A1 (en) | Liquid crystal display device | |
| EP4446804A1 (en) | Display panel and electronic device | |
| CN110262111A (en) | The LCD and its manufacturing method of active mesomorphic internal latency device | |
| US20220165986A1 (en) | Display panel, manufacturing method thereof, and display device | |
| CN113759453B (en) | Polarization filter plate, touch display device and mobile terminal | |
| US11561635B1 (en) | Integrated touch module and touch display device having the same | |
| US11402684B2 (en) | Display assembly, display device and method for controlling the display device | |
| JP2018049183A (en) | Half mirror and electronic device | |
| JP2012118296A (en) | Liquid crystal device and electronic apparatus | |
| US20190293996A1 (en) | Liquid crystal display and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |