CN115578930A - Display module and electronic equipment - Google Patents

Display module and electronic equipment Download PDF

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Publication number
CN115578930A
CN115578930A CN202211073492.8A CN202211073492A CN115578930A CN 115578930 A CN115578930 A CN 115578930A CN 202211073492 A CN202211073492 A CN 202211073492A CN 115578930 A CN115578930 A CN 115578930A
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CN
China
Prior art keywords
polarized light
scattering
display module
state
projection
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Pending
Application number
CN202211073492.8A
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Chinese (zh)
Inventor
叶文龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN202211073492.8A priority Critical patent/CN115578930A/en
Publication of CN115578930A publication Critical patent/CN115578930A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual 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
    • G02F1/1323—Arrangements for providing a switchable viewing angle
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation

Abstract

The embodiment of the application discloses a display module and electronic equipment, wherein the display module comprises a display panel, a first polaroid, a phase adjusting unit and a scattering adjusting film, and the first polaroid is arranged on the light emergent side of the display panel; the phase adjusting unit is arranged on one side of the first polarizer far away from the display panel and used for adjusting the polarization state of light rays, and the light rays emitted by the display panel form polarized light rays after passing through the first polarizer and the phase adjusting unit; the scattering adjusting film is arranged on one side of the phase adjusting unit, which is far away from the first polaroid, and is used for selectively scattering polarized light; wherein, the display module assembly has sharing state and peep-proof state at least, and the membrane is adjusted in the scattering has first scattering ability to polarized light under the sharing state, and the membrane is adjusted in the scattering has the second scattering ability to polarized light under the peep-proof state, and first scattering ability is greater than the second scattering ability.

Description

Display module and electronic equipment
Technical Field
The application relates to the field of display, concretely relates to display module assembly and electronic equipment.
Background
With the increasing popularity and use of display devices, users attach importance to the protection of personal information, and thus the concept of anti-peeping is gradually attached importance to users. The peep-proof display requires that the observer cannot observe the picture which is watched by the user while the use of the user is not influenced.
In the research and practice process of the prior art, the inventor of the application finds that the commonly used peep-proof function is realized by pasting a peep-proof film on the display, the peep-proof mode is convenient and low in cost, but the peep-proof mode is not switchable and cannot meet the requirements of users in different scenes.
Disclosure of Invention
The embodiment of the application provides a display module assembly and electronic equipment, can solve the technical problem that the peep-proof display is difficult to switch between the peep-proof mode and the sharing mode.
The embodiment of the application provides a display module assembly, includes:
a display panel;
the first polaroid is arranged on the light emitting side of the display panel;
the phase adjusting unit is arranged on one side of the first polaroid, which is far away from the display panel, and is used for adjusting the polarization state of light, and the light emitted by the display panel forms polarized light after passing through the first polaroid and the phase adjusting unit; and
the scattering adjusting film is arranged on one side, away from the first polarizer, of the phase adjusting unit and is used for selectively scattering the polarized light;
the display module at least has a sharing state and a peeping prevention state, the scattering adjusting film has a first scattering capacity for the polarized light in the sharing state, the scattering adjusting film has a second scattering capacity for the polarized light in the peeping prevention state, and the first scattering capacity is larger than the second scattering capacity.
Optionally, in some embodiments of the present application, the scattering adjustment film includes a first liquid crystal having a first optical axis, and a projection of the first optical axis of the first liquid crystal on the first polarizer is a first projection;
the included angle between the first projection and the transmission axis of the first polarizer is-10 degrees to 10 degrees.
Optionally, in some embodiments of the present application, the scattering adjustment film includes a first liquid crystal having a first optical axis, and a projection of the first optical axis of the first liquid crystal on the first polarizer is a first projection;
the included angle between the first projection and the transmission axis of the first polarizer is 100-80 degrees.
Optionally, in some embodiments of the present application, the phase adjusting unit is configured to adjust a polarization direction of linearly polarized light, where the polarized light is linearly polarized light;
in the sharing state, an included angle between the polarization direction of the polarized light and the first projection is-10 degrees to 10 degrees; in the peep-proof state, an included angle between the polarization direction of the polarized light and the first projection is 95-85 degrees.
Optionally, in some embodiments of the present application, the phase adjusting unit does not change the polarization direction of the linearly polarized light in the sharing state, and the phase adjusting unit rotates the polarization direction of the linearly polarized light in the peeping prevention state.
Optionally, in some embodiments of the present application, the phase adjusting unit does not change the polarization direction of the linearly polarized light in the peep-proof state, and the phase adjusting unit rotates the polarization direction of the linearly polarized light in the sharing state.
Optionally, in some embodiments of the present application, the phase adjusting unit is configured to convert linearly polarized light into circularly polarized light or elliptically polarized light;
in the sharing state, the polarized light is circularly polarized light or elliptically polarized light; in the peep-proof state, the polarized light is linearly polarized light, and an included angle between the polarization direction of the polarized light and the first projection is 95-85 degrees.
Optionally, in some embodiments of the present application, the phase adjustment unit includes a first electrode, a liquid crystal layer, and a second electrode, the first electrode and the second electrode are disposed opposite to each other, and the liquid crystal layer is disposed between the first electrode and the second electrode.
Optionally, in some embodiments of the present application, the phase adjustment unit is a magneto-optical rotator including a magnetic field generating element and a magneto-optical film, the magnetic field generating element for providing a magnetic field to the magneto-optical film.
The embodiment of the application also provides an electronic device which comprises the display module.
The embodiment of the application adopts a display module assembly and electronic equipment, the emergent light of display panel forms polarized light after first polaroid and phase adjustment unit, through adopting the polarization state that phase adjustment unit adjusted light, can adjust the polarization state of polarized light, the scattering regulation membrane has different scattering power to the polarized light of different polarization states, thereby make the display module assembly have sharing state and peep-proof state at least, the scattering regulation membrane has first scattering power to polarized light under the sharing state, the scattering regulation membrane has the second scattering power to polarized light under the peep-proof state, first scattering power is greater than the second scattering power, consequently, the visual angle of display module assembly under the sharing state is greater than the visual angle of display module assembly under the peep-proof state.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display module provided in an embodiment of the present application in one state;
fig. 2 is a schematic structural diagram of a display module provided in an embodiment of the present application in another state;
fig. 3 is a schematic structural diagram of a scattering regulation film provided in an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating the extension direction and polar angle of a first projection of a first liquid crystal;
fig. 5 is a schematic structural diagram of a second phase adjustment unit according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In this application, where the context requires otherwise, the words "upper" and "lower" used in relation to the device in use or operation will generally refer to the upper and lower extremities of the device, particularly as oriented in the drawing figures; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a display module and electronic equipment. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Referring to fig. 1 and 2, a display module according to an embodiment of the present disclosure includes a display panel 100, a first polarizer 200, a phase adjusting unit 300, and a scattering adjustment film 400. The first polarizer 200 is disposed on the light emitting side of the display panel 100, the phase adjusting unit 300 is disposed on the first polarizer 200 away from the display panel 100, and the scattering adjusting film 400 is disposed on the phase adjusting unit 300 away from the first polarizer 200.
Specifically, the phase adjustment unit 300 is used for adjusting the polarization state of the light, and the light emitted from the display panel 100 passes through the first polarizer 200 and the phase adjustment unit 300 to form the polarized light L. The scattering adjustment film 400 is used for selectively scattering the polarized light L, and the scattering adjustment film 400 has different scattering abilities to the polarized light L in different polarization states, so that the display module has at least a sharing state and a peeping-proof state. The scattering adjustment film 400 has a first scattering ability for the polarized light L in the sharing state, the scattering adjustment film 400 has a second scattering ability for the polarized light L in the peeping-proof state, and the first scattering ability is greater than the second scattering ability, so that the viewing angle of the display module in the sharing state is greater than the viewing angle of the display module in the peeping-proof state.
Specifically, as shown in fig. 3, the scattering adjustment film 400 includes a first liquid crystal 410 and a polymer 420, and is obtained by mixing monomers of the first liquid crystal 410 and the synthetic polymer 420 together and curing the mixture under two different ultraviolet curing conditions.
As seen in fig. 4, the first liquid crystal 410 has a first optical axis F. In order to facilitate the explanation of the angle of the first optical axis F, a three-dimensional rectangular coordinate is established, wherein any two directions of a first direction X, a second direction Y and a third direction Z are perpendicular, the first direction X and the second direction Y are parallel to the first polarizer 200, that is, the first direction X and the second direction Y are parallel to the plane of the first polarizer 200, the third direction Z is parallel to the normal E of the first polarizer 200, and the first direction X (i.e., the 0 ° or 180 ° direction) is the same as the direction of the transmission axis of the first polarizer 200. The display panel 100, the first polarizer 200, the phase adjusting unit 300, and the scattering adjustment film 400 are sequentially stacked in the third direction Z. The projection of the first optical axis F of the first liquid crystal 410 on the plane where the first polarizer 200 is located is a first projection G, the included angle α between the first projection G of different molecules of the first liquid crystal 410 and the transmission axis of the first polarizer 200 is the same, the included angle between the first optical axis F of the first liquid crystal 410 and the third direction Z is a polar angle β, and the scattering adjustment film 400 has a plurality of first liquid crystals 410 with different polar angles.
Specifically, as shown in fig. 3 and 4, the included angle α between the first projection G and the transmission axis of the first polarizer 200 is-10 ° to 10 °, for example, the included angle α between the first projection G and the transmission axis of the first polarizer 200 may be-10 °, -5 °, 0 °, 5 °, or 10 °. In this structure, the transmission axes of the first projection G and the first polarizer 200 are parallel or nearly parallel, and the light emitted from the display panel 100 passes through the first polarizer 200 to form linearly polarized light with a polarization direction parallel or nearly parallel to the first projection G; the phase adjusting unit 300 forms incident light by adjusting the polarization state of the linearly polarized light emitted from the first polarizer 200; the polarized light component that incident light corresponds to be on a parallel with first projection G can take place the scattering when adjusting the membrane 400 through the scattering, and the polarized light component that incident light corresponds to perpendicular to first projection G can not take place the scattering when adjusting the membrane 400 through the scattering, consequently, can adjust the proportion that incident light corresponds to be on a parallel with the polarized light component of first projection G and corresponds to the polarized light component of perpendicular to first projection G through phase place adjusting unit 300, make the display module assembly switch between sharing state and peep-proof state.
It is understood that the included angle α between the first projection G and the transmission axis of the first polarizer 200 can be adjusted appropriately according to the choice of actual conditions and the setting of specific requirements, and is not limited herein. In another embodiment of the present application, an angle α between the first projection G and the transmission axis of the first polarizer 200 may be 100 ° to 80 °, for example, an angle α between the first projection G and the transmission axis of the first polarizer 200 may be 100 °, 95 °, 90 °, 85 °, or 80 °. In this structure, the transmission axes of the first projection G and the first polarizer 200 are perpendicular or close to perpendicular, and the light emitted from the display panel 100 passes through the first polarizer 200 to form linearly polarized light with a polarization direction perpendicular or close to perpendicular to the first projection G; the phase adjusting unit 300 forms incident light by adjusting the polarization state of the linearly polarized light emitted from the first polarizer 200; the polarized light component that incident light corresponds to be on a parallel with first projection G can take place the scattering when adjusting the membrane 400 through the scattering, and the polarized light component that incident light corresponds to perpendicular to first projection G can not take place the scattering when adjusting the membrane 400 through the scattering, consequently, can adjust the proportion that incident light corresponds to be on a parallel with the polarized light component of first projection G and corresponds to the polarized light component of perpendicular to first projection G through phase place adjusting unit 300, make the display module assembly switch between sharing state and peep-proof state.
Specifically, as shown in fig. 1 and 2, the phase adjustment unit 300 includes a first electrode 320, a liquid crystal layer 340, and a second electrode 360, the first electrode 320 and the second electrode 360 being disposed opposite to each other, and the liquid crystal layer 340 being disposed between the first electrode 320 and the second electrode 360. In this structure, the liquid crystal layer 340 includes a second liquid crystal (not shown) having a second optical axis, when the first electrode 320 and the second electrode 360 are turned off, the second liquid crystal is not deflected, the second optical axis intersects with the transmission axis of the first polarizer 200, and the polarization state of the light passing through the liquid crystal layer 340 is changed; when the first electrode 320 and the second electrode 360 are energized, the second liquid crystal deflects, the second optical axis is perpendicular to the first electrode 320 and the second electrode 360, and the polarization state of the light passing through the liquid crystal layer 340 is not changed. In this embodiment, the phase adjustment unit 300 further includes a first substrate 310, a first alignment layer 330, a second substrate 370 and a second alignment layer 350, the first substrate 310 is disposed on a side of the first electrode 320 close to the first polarizer 200, the first alignment layer 330 is disposed between the liquid crystal layer 340 and the first electrode 320, the second substrate 370 is disposed on a side of the second electrode 360 away from the first polarizer 200, and the second alignment layer 350 is disposed between the liquid crystal layer 340 and the second electrode 360.
It is understood that the specific structure of the phase adjusting unit 300 can be modified appropriately according to the choice of actual conditions and the setting of specific requirements, and is not limited thereto. In another embodiment of the present application, as shown in fig. 5, the phase adjusting unit 300 is a magneto-optical rotator comprising a magnetic field generating element 380 and a magneto-optical film 390, the magnetic field generating element 380 being adapted to provide a magnetic field to the magneto-optical film 390. With this structure, the polarization state of light is adjusted by the principle of magneto-optical rotation, specifically, the magnetic field of the magneto-optical film 390 is adjusted by the magnetic field generating element 380, and the polarization state of light changes according to the magnetic field when passing through the magneto-optical film 390.
Specifically, the phase adjusting unit 300 has a function similar to a half-wave plate, and the phase adjusting unit 300 is configured to generate a pi odd-times phase delay between two polarization components of linearly polarized light, where the two polarization directions are perpendicular to each other, that is, the phase adjusting unit 300 is configured to adjust the polarization direction of the linearly polarized light, because the light passes through the first polarizer 200 to form the linearly polarized light, and after passing through the phase adjusting unit 300, the polarized light L is also linearly polarized light. In the sharing state, the angle between the polarization direction of the polarized light L and the first projection G is-10 ° to 10 °, for example, the angle between the polarization direction of the polarized light L and the first projection G is-10 °, -5 °, 0 °, 5 °, or 10 °; in the peep-proof state, the included angle between the polarization direction of the polarized light L and the first projection G is 95 ° to 85 °, for example, the included angle between the polarization direction of the polarized light L and the first projection G is 100 °, 95 °, 90 °, 85 °, or 80 °. In this embodiment, after the linearly polarized light passes through the phase adjustment unit 300, the polarization direction rotates by an angle twice as large as the included angle between the alignment angle of the second liquid crystal and the transmission axis of the first polarizer 200, and preferably, the included angle between the alignment angle of the second liquid crystal and the transmission axis of the first polarizer 200 is ± 45 °, so that the polarization direction of the linearly polarized light rotates by 90 ° after passing through the phase adjustment unit 300.
Specifically, when the included angle α between the first projection G and the transmission axis of the first polarizer 200 is-10 ° to 10 °, the phase adjustment unit 300 does not change the polarization direction of the linearly polarized light in the sharing state, and the phase adjustment unit 300 rotates the polarization direction of the linearly polarized light in the peeping prevention state. In this embodiment, as shown in fig. 1, in the privacy state, the first electrode 320 and the second electrode 360 are turned off, the second liquid crystal is not deflected, and the second optical axis intersects with the transmission axis of the first polarizer 200, so that the phase adjusting unit 300 changes the polarization direction of linearly polarized light; as shown in fig. 2, in the sharing state, the first electrode 320 and the second electrode 360 are energized, the second liquid crystal is deflected, and the second optical axis is perpendicular to the first electrode 320 and the second electrode 360, so that the phase adjusting unit 300 does not change the polarization direction of the linearly polarized light.
Specifically, when the included angle α between the first projection G and the transmission axis of the first polarizer 200 is 100 ° to 80 °, the phase adjustment unit 300 does not change the polarization direction of the linearly polarized light in the privacy state, and the phase adjustment unit 300 rotates the polarization direction of the linearly polarized light in the sharing state. In this embodiment, as shown in fig. 1, in the sharing state, the first electrode 320 and the second electrode 360 are turned off, the second liquid crystal is not deflected, and the second optical axis intersects with the transmission axis of the first polarizer 200, so that the phase adjusting unit 300 changes the polarization direction of the linearly polarized light; as shown in fig. 2, in the peep-proof state, the first electrode 320 and the second electrode 360 are energized, the second liquid crystal is deflected, and the second optical axis is perpendicular to the first electrode 320 and the second electrode 360, so that the phase adjusting unit 300 does not change the polarization direction of the linearly polarized light.
Alternatively, the phase adjustment unit 300 may generate another phase retardation amount between polarization components having two vibration directions perpendicular to each other of the linearly polarized light, for example, the phase adjustment unit 300 may generate a phase retardation of pi/2 odd times between polarization components having two vibration directions perpendicular to each other of the linearly polarized light, that is, the phase adjustment unit 300 is configured to convert the linearly polarized light into circularly polarized light or elliptically polarized light. Wherein, an included angle α between the first projection G and the transmission axis of the first polarizer 200 is 100 ° to 80 °, and the polarized light L is circularly polarized light or elliptically polarized light in the sharing state; in the peeping-proof state, the polarized light L is linearly polarized light, and an included angle between the polarization direction of the polarized light L and the first projection G is 95 ° to 85 °, for example, an included angle between the polarization direction of the polarized light L and the first projection G is 95 °, 90 °, or 85 °. In this embodiment, as shown in fig. 1, in the sharing state, the first electrode 320 and the second electrode 360 are powered off, the second liquid crystal is not deflected, the second optical axis intersects with the transmission axis of the first polarizer 200, and the phase adjustment unit 300 converts the polarized light L into circularly polarized light or elliptically polarized light; as shown in fig. 2, in the peep-proof state, the first electrode 320 and the second electrode 360 are energized, the second liquid crystal is deflected, and the second optical axis is perpendicular to the first electrode 320 and the second electrode 360, so that the polarization direction of the linearly polarized light is not changed by the phase adjustment unit 300, and the included angle between the polarization direction of the polarized light L and the first projection G is 95-85 °.
Specifically, the display panel 100 is a liquid crystal display panel 100, the display module further includes a second polarizer 500 and a backlight source 600, the second polarizer 500 and the backlight source 600 are disposed on one side of the display panel 100 away from the first polarizer 200 at a time, a transmission axis of the second polarizer 500 is perpendicular to a transmission axis of the first polarizer 200, and the backlight source 600 is a collimated light source. Under this structure, collimated light source has better display effect, is favorable to reducing the light intensity loss of light in the transmission course.
The embodiment of the application also provides an electronic device which comprises the display module. The electronic device may be a fixed terminal such as a desktop computer, a television, a large-sized display screen, or the like; or a mobile terminal, such as a notebook computer, a mobile phone, a tablet computer, etc. In this embodiment, the electronic device further includes a terminal body, the terminal body is a housing, and the display module is fixed on the terminal body.
The display module and the electronic device provided by the embodiment of the present application are described in detail above, and specific examples are applied in this document to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A display module, comprising:
a display panel;
the first polaroid is arranged on the light emitting side of the display panel;
the phase adjusting unit is arranged on one side of the first polaroid, which is far away from the display panel, and is used for adjusting the polarization state of light, and the light emitted by the display panel forms polarized light after passing through the first polaroid and the phase adjusting unit; and
the scattering adjusting film is arranged on one side, away from the first polarizer, of the phase adjusting unit and used for selectively scattering the polarized light;
the display module at least has a sharing state and a peep-proof state, the scattering adjusting film has a first scattering capacity for the polarized light in the sharing state, the scattering adjusting film has a second scattering capacity for the polarized light in the peep-proof state, and the first scattering capacity is larger than the second scattering capacity.
2. The display module according to claim 1, wherein the scattering adjustment film comprises a first liquid crystal having a first optical axis, and a projection of the first optical axis of the first liquid crystal on the first polarizer is a first projection;
the included angle between the first projection and the transmission axis of the first polarizer is-10 degrees.
3. The display module according to claim 1, wherein the scattering adjustment film comprises a first liquid crystal having a first optical axis, and a projection of the first optical axis of the first liquid crystal on the first polarizer is a first projection;
the included angle between the first projection and the transmission axis of the first polarizer is 100-80 degrees.
4. The display module according to claim 2 or 3, wherein the phase adjusting unit is configured to adjust a polarization direction of linearly polarized light, and the polarized light is linearly polarized light;
in the sharing state, an included angle between the polarization direction of the polarized light and the first projection is-10 degrees to 10 degrees; in the peep-proof state, an included angle between the polarization direction of the polarized light and the first projection is 95-85 degrees.
5. The display module according to claim 2, wherein the phase adjustment unit does not change the polarization direction of the linearly polarized light in the sharing state, and the phase adjustment unit rotates the polarization direction of the linearly polarized light in the peeping prevention state.
6. The display module according to claim 3, wherein the phase adjusting unit does not change the polarization direction of the linearly polarized light in the privacy state, and the phase adjusting unit rotates the polarization direction of the linearly polarized light in the sharing state.
7. The display module of claim 3, wherein the phase adjusting unit is configured to convert linearly polarized light into circularly polarized light or elliptically polarized light;
in the sharing state, the polarized light is circularly polarized light or elliptically polarized light; in the peep-proof state, the polarized light is linearly polarized light, and an included angle between the polarization direction of the polarized light and the first projection is 95-85 degrees.
8. The display module according to any one of claims 1, 2, 3, 5, 6 and 7, wherein the phase adjustment unit comprises a first electrode, a liquid crystal layer and a second electrode, the first electrode and the second electrode are oppositely disposed, and the liquid crystal layer is disposed between the first electrode and the second electrode.
9. The display module according to any one of claims 1, 2, 3, 5, 6 and 7, wherein the phase adjusting unit is a magneto-optical rotator including a magnetic field generating element and a magneto-optical film, the magnetic field generating element for providing a magnetic field to the magneto-optical film.
10. An electronic device comprising the display module according to any one of claims 1 to 9.
CN202211073492.8A 2022-09-02 2022-09-02 Display module and electronic equipment Pending CN115578930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211073492.8A CN115578930A (en) 2022-09-02 2022-09-02 Display module and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211073492.8A CN115578930A (en) 2022-09-02 2022-09-02 Display module and electronic equipment

Publications (1)

Publication Number Publication Date
CN115578930A true CN115578930A (en) 2023-01-06

Family

ID=84578622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211073492.8A Pending CN115578930A (en) 2022-09-02 2022-09-02 Display module and electronic equipment

Country Status (1)

Country Link
CN (1) CN115578930A (en)

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