CN111103696A - Electronic equipment and display equipment thereof - Google Patents
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- CN111103696A CN111103696A CN201911403373.2A CN201911403373A CN111103696A CN 111103696 A CN111103696 A CN 111103696A CN 201911403373 A CN201911403373 A CN 201911403373A CN 111103696 A CN111103696 A CN 111103696A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/868—Arrangements for polarized light emission
Abstract
The application discloses display device and electronic equipment adopts the adjustable regulation module of state, and under the first state, the regulation module can be changed the non-polarized light of outside incidence into first polarized light incidence display module assembly, and display module assembly passes through the reflection, changes first polarization into second polarized light, the regulation module is changed the second polarized light into the second linearly polarized light that can not see through to can block display module assembly reflection light's emergence, under the second state, the regulation module can change outside incidence non-polarized light into first linearly polarized light, and display module assembly utilizes the reflection, does not change the polarization characteristic of first linearly polarized light, with first linearly polarized light reflection extremely the regulation module assembly, the regulation module can the emergence first linearly polarized light, can make the light emergence of display module assembly reflection. According to the technical scheme, the light reflected by the display module can be emitted by the display equipment or the light reflected by the display module can not be emitted by the display equipment.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to electronic equipment and display equipment thereof.
Background
With the continuous development of science and technology, more and more electronic devices with display functions are widely applied to daily life and work of people, bring great convenience to the daily life and work of people, and become an indispensable important tool for people at present.
The main component of the electronic device for realizing the display function is the display device, and the existing display device has a single utilization mode of ambient light and cannot utilize the ambient light based on different application scenes.
Disclosure of Invention
In view of this, the present application provides an electronic device and a display device thereof, and the scheme is as follows:
the application provides a display device, including:
the display module can reflect the first polarized light to form second polarized light, can reflect linearly polarized light, and does not change the polarization direction of the linearly polarized light; one of the first polarized light and the second polarized light is left-handed circularly polarized light, and the other one is right-handed circularly polarized light;
the adjusting module is arranged on the light emergent side of the display module; the adjusting module has a first state and a second state; the adjusting module can transmit first linearly polarized light and block second linearly polarized light vertical to the polarization state of the first linearly polarized light;
if the display module is in the first state, the adjusting module can convert externally incident non-polarized light into first polarized light to be incident on the display module, and can convert second polarized light formed by the first polarized light reflected by the display module into second linearly polarized light so as to block the second linearly polarized light formed by the reflection of the display module;
if the display module is in the second state, the adjusting module can convert externally incident non-polarized light into the first linearly polarized light to be incident into the display module, and the first linearly polarized light reflected by the display module can be emergent.
Preferably, in the above display apparatus, the adjusting module includes:
the first adjusting element is arranged on the light emitting side of the display module and used for converting externally incident non-polarized light into the first linearly polarized light and blocking the second linearly polarized light;
the second adjusting element is arranged on one side, facing the display module, of the first adjusting element; if the first adjusting element is in the first state, the second adjusting element is used for converting the first linearly polarized light emitted by the first adjusting element into the first polarized light to be incident to the display module, and if the second adjusting element is in the second state, the second adjusting element does not change the polarization direction of the first linearly polarized light emitted by the first adjusting element and does not change the polarization direction of the first linearly polarized light reflected by the display module.
Preferably, in the above display device, further comprising:
the controller is respectively connected with the display module and the adjusting module;
the controller is used for executing a first instruction, controlling the display module to display an image, controlling the adjusting module to be in the first state, and blocking the reflected light of the display module through the adjusting module.
Preferably, in the above display device, further comprising:
the controller is respectively connected with the display module and the adjusting module;
the controller is used for executing a second instruction, controlling the display module to be in a non-display state, and controlling the adjusting module to be in the second state, so that the reflected light of the display module can be emitted through the adjusting module.
Preferably, in the above display device, further comprising:
the controller is respectively connected with the display module and the adjusting module;
the auxiliary light source is connected with the controller, is arranged on one side of the adjusting module, which is far away from the display module, and is not overlapped with the display area of the display module;
the controller is used for executing a third instruction, controlling the display module to display an image, controlling the adjusting module to be in the second state, and controlling the auxiliary light source to emit interference light rays towards the display area so as to improve the strength of the oblique reflection light rays of the display module transmitting through the adjusting module.
Preferably, in the display device, in the light emitting direction of the display module, the second adjusting element includes a first transparent electrode and a second transparent electrode which are oppositely disposed, and a dielectric layer located between the two electrodes;
the first transparent electrode and the second transparent electrode are used for adjusting the optical property of the medium layer based on a control voltage, so that the adjusting module is in the first state or the second state.
Preferably, in the display device, the display module includes a first conductive layer, and the first conductive layer is a display electrode or an electromagnetic shielding layer;
the first transparent electrode is positioned on one side of the dielectric layer facing the display module, and the first conducting layer is multiplexed to be used as the first transparent electrode.
Preferably, in the above display apparatus, the display module is a self-luminous display module having a substrate and a self-luminous pixel array disposed on the substrate, a side of the self-luminous pixel array facing away from the substrate has a common cathode, and the common cathode is the first transparent electrode.
Preferably, in the above display device, further comprising:
the touch control assembly is arranged on one side, away from the display module, of the second adjusting element and is provided with a second conducting layer, and the second conducting layer is a touch control electrode or an electromagnetic shielding layer of the touch control assembly;
the second transparent electrode is positioned on one side of the dielectric layer, which is far away from the display module, and the second conducting layer is multiplexed to be used as the second transparent electrode.
The present application further provides an electronic device, including: a display device and a controller;
the display equipment is provided with a display module and an adjusting module; the display module can reflect the first polarized light to form second polarized light, can reflect linearly polarized light, and does not change the polarization direction of the linearly polarized light; the adjusting module is arranged on the light emitting side of the display module and has a first state and a second state; the adjusting module can transmit first linearly polarized light and block second linearly polarized light vertical to the polarization state of the first linearly polarized light; if the display module is in the first state, the adjusting module can convert externally incident non-polarized light into first polarized light to be incident on the display module, and can convert second polarized light formed by the first polarized light reflected by the display module into second linearly polarized light so as to block the second linearly polarized light formed by the reflection of the display module; if the display module is in the second state, the adjusting module can convert externally incident non-polarized light into the first linearly polarized light to be incident on the display module, and the first linearly polarized light reflected by the display module can be emergent;
the controller is used for controlling the display module to display images and controlling the state of the adjusting module.
According to the above description, in the display device and the electronic device provided in the technical scheme of the application, the adjusting module with adjustable states is adopted, in the first state, the adjusting module can convert external incident non-polarized light into first polarized light and then transmit the first polarized light to the display module, the display module converts the first polarized light into second polarized light through reflection and reflects the second polarized light to the adjusting module, the adjusting module converts the second polarized light into second linearly polarized light which can not be transmitted, so that the emergent light reflected by the display module can be blocked, in the second state, the adjusting module can convert the external incident non-polarized light into the first linearly polarized light and transmit the first linearly polarized light to the adjusting module by reflection, the polarization characteristic of the first linearly polarized light is not changed by the display module, and the adjusting module can emit the first linearly polarized light, the light reflected by the display module can be emergent. It is thus clear that this application technical scheme can be based on the state of adjusting the module, selects to make the light that the display module assembly reflected can the outgoing display device or make the light that the display module assembly reflected can not the outgoing display device.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another display device provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of the optical path propagation of the display apparatus shown in FIG. 2 when the adjusting module is in the first state;
FIG. 4 is a schematic diagram of the optical path propagation of the display apparatus shown in FIG. 2 when the adjusting module is in the second state;
fig. 5 is a schematic structural diagram of another display device provided in an embodiment of the present application;
fig. 6a is a schematic structural diagram of another display device provided in the embodiment of the present application;
FIG. 6b is a schematic diagram illustrating the principle of calculating the incident angle θ of the auxiliary light source in the display device shown in FIG. 6 a;
FIG. 7 is a schematic structural diagram of a second adjusting element according to an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of the arrangement of liquid crystal molecules of the second adjusting element shown in FIG. 7 under a control voltage;
fig. 9 is a schematic structural diagram of another display device provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of another display device provided in an embodiment of the present application;
fig. 11 is a schematic structural diagram of another display device provided in an embodiment of the present application;
fig. 12 is a schematic structural diagram of another display device provided in an embodiment of the present application;
fig. 13 is a schematic view illustrating a principle of preventing light reflected by a display module when an adjusting module is in a second state according to an embodiment of the disclosure;
fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in detail and fully with reference to the accompanying drawings, wherein the description is only for the purpose of illustrating the embodiments of the present application and is not intended to limit the scope of the invention. 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.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a display device provided in an embodiment of the present application, where the display device includes: a display module 11 and an adjusting module 12. The display module 11 and the adjusting module 12 are oppositely arranged.
The display module 11 can reflect the first polarized light to form the second polarized light, and can reflect the linearly polarized light without changing the polarization direction of the linearly polarized light. One of the first polarized light and the second polarized light is left circularly polarized light, and the other is right circularly polarized light.
The display module 11 has a reflection function, and based on the reflection characteristic, reflection can make incident circular polarized light and reflection circular polarized light take place the conversion of dextrorotation, so display module 11 can convert incident first polarized light into second polarized light through reflection, and based on the reflection characteristic, the polarization direction of linear polarized light is not changed in the reflection, so display module 11 can reflect the linear polarized light of incidence, and does not change the polarization direction of linear polarized light, if the incident display module 11 is first linear polarized light, then the emergent light that its reflection formed still is first linear polarized light.
The adjusting module 12 is arranged on the light emitting side of the display module 11; the adjusting module 12 has a first state and a second state; the adjusting module 12 can transmit the first linearly polarized light and block the second linearly polarized light vertical to the polarization state of the first linearly polarized light.
If the display module is in the first state, the adjusting module 12 can convert externally incident non-polarized light into first polarized light to be incident on the display module 11, and can convert second polarized light formed by the first polarized light reflected by the display module 11 into second linearly polarized light so as to block the second linearly polarized light formed by the light reflected by the display module 11, thereby achieving the purpose of blocking the emergent light reflected by the display module 11. At this moment, the external incident non-polarized light passes through behind the adjusting module 12, converts first polarized light into and incides to display module 11, and first polarized light passes through the reflection of display module 11 and forms second polarized light, and display module 11 reflects second polarized light to adjusting module 12, and adjusting module 12 can be with second polarized light conversion unable pass through adjusting module 12's second linearly polarized light to block the second linearly polarized light that 11 reflected light of display module formed, in order to prevent 11 reflected light outgoing of display module display device.
If the display module is in the second state, the adjusting module 12 can convert externally incident non-polarized light into the first linearly polarized light, and the first linearly polarized light is incident on the display module 11, and the first linearly polarized light reflected by the display module 11 can be emitted. At this moment, the external incident unpolarized light passes through behind the adjusting module 12, converts first linearly polarized light into and incides to display module 11, and first linearly polarized light passes through display module 11 and reflects, does not change the polarization direction, so display module 11 directly reflects first linearly polarized light to adjusting module 12, adjusts module 12 and can see through first linearly polarized light to make the first linearly polarized light that display module 11 reflects emergent, make display module 11 reflection light can be emergent display device.
It can be seen that, this application embodiment display device can be based on adjust the state of module 12, select to make the light that display module assembly 11 reflects can the outgoing display device, or select to block the light outgoing that display module assembly 11 reflects display device. The light reflected by the display module 11 can be selected to be utilized or not for the incident unpolarized light based on the use scene of the display device, so as to realize the preset function.
If non-polarized light is the outside ambient light of display device, when display module assembly 11 carries out image display, set up and adjust module 12 and be in the first state, can make ambient light lead to the reflected light that display module assembly 11 formed can not pass through adjust module 12 outgoing to can avoid the influence of display module assembly 11 reflected light to image display quality. When display module assembly 11 is in the non-display state, set up and adjust module 12 and be in the second state, can make ambient light lead to the reflection light that display module assembly 11 formed to pass through adjust module 12 outgoing, display device can regard as a mirror to use this moment, can utilize the light that display module assembly 11 reflects to show the outside scenery of display device.
As shown in fig. 2, fig. 2 is a schematic structural diagram of another display device provided in an embodiment of the present application, based on the manner shown in fig. 1, in the manner shown in fig. 2, the adjusting module 12 includes: the display module comprises a first adjusting element 121 arranged on the light emitting side of the display module 11, and a second adjusting element 122 arranged on the side of the first adjusting element 121 facing the display module 11. The first adjusting element 121 is configured to convert externally incident unpolarized light S1 into the first linearly polarized light S2, and is capable of blocking the second linearly polarized light S5.
In the display device shown in fig. 2, if the adjusting module 12 is in the first state, the light path propagation can be as shown in fig. 3.
As shown in fig. 3, fig. 3 is a schematic optical path propagation diagram of the display device shown in fig. 2 when the adjusting module is in the first state, if in the first state, the second adjusting element 122 is configured to convert the first linearly polarized light S2 emitted from the first adjusting element 121 into the first polarized light S3, after the first polarized light S3 is reflected by the display module 11, the second polarized light S4 is formed and enters the second adjusting element 122, the second adjusting element 122 can convert the second polarized light S4 into the second linearly polarized light S5, and the first adjusting element 121 blocks the emission of the second linearly polarized light S5. The dashed arrows in fig. 3 are used to illustrate the propagation of light.
In the display device shown in fig. 2, if the adjusting module 12 is in the second state, the light path propagation thereof may be as shown in fig. 4.
As shown in fig. 4, fig. 4 is a schematic diagram of the optical path propagation of the display device shown in fig. 2 when the adjusting module is in the second state, and if in the second state, the second adjusting element 122 does not change the polarization direction of the first linearly polarized light S2 emitted from the first adjusting element 121, and does not change the polarization direction of the first linearly polarized light S2 reflected by the display module. At this time, the second adjusting element 122 and the display module 11 do not change the polarization direction of the linearly polarized light, so the first linearly polarized light S2 emitted from the first adjusting element 121 enters the display module 11 through the second adjusting element 122, is reflected to the second adjusting element 122 through the display module 11, and is still the first linearly polarized light S2 emitted through the second adjusting element 122, so the light can be emitted through the first adjusting element 121. The dashed arrows in fig. 4 are used to illustrate the propagation of light.
As shown in fig. 5, fig. 5 is a schematic structural diagram of another display device provided in an embodiment of the present application, and based on the manner shown in fig. 1, the display device shown in fig. 5 further includes a controller 13 respectively connected to the display module 11 and the adjusting module 12.
In one mode, the controller 13 is configured to execute a first instruction, control the display module 11 to display an image, control the adjusting module 12 to be in the first state, and block the reflected light of the display module 11 through the adjusting module 12.
In other ways, the controller 13 is configured to execute a second instruction, control the display module 11 to be in a non-display state, and control the adjusting module 12 to be in the second state, so that the reflected light of the display module 11 can be emitted through the adjusting module 12.
In other ways, the display device may also be as shown in fig. 6 a.
As shown in fig. 6a, fig. 6a is a schematic structural diagram of another display device provided in an embodiment of the present application, and based on the manner shown in fig. 1, the display device shown in fig. 6a further includes: the controller 13 is respectively connected with the display module 11 and the adjusting module 12; and the auxiliary light source 14 is connected with the controller 13, and the auxiliary light source 14 is arranged on one side of the adjusting module 12 departing from the display module 11 and is not overlapped with the display area of the display module 11.
The controller 15 is configured to execute a third instruction, control the display module 11 to display an image, control the adjusting module 12 to be in the second state, and control the auxiliary light source 14 to emit interference light toward the display area, so as to improve the intensity of the oblique reflection light of the display module 11 transmitting through the adjusting module 12. In fig. 6a, dashed arrows are used to illustrate the propagation of the light emitted from the auxiliary light source 14.
The disturbing light ray at least comprises a first linearly polarized light ray, for example, the disturbing light ray can be the first linearly polarized light ray or non-polarized light ray. Like this, when adjusting module 12 is in the second state, make interference light pass through behind the adjusting module 12, have first linearly polarized light and incide display module assembly 11, come the first linearly polarized light of transmission interference light adjust module 12 under the second state, can be emergent after the display module assembly 11 reflection. The interference light is obliquely incident into the display area, and the position of the auxiliary light source 24 is arranged, so that the emergent first linearly polarized light is emergent at a set angle, and an observer corresponding to the angle cannot clearly observe the image displayed by the display module 11, and the purpose of peeping prevention display is achieved. The user of the display device generally watches the display image just facing the display module 11, the first linearly polarized light emitted at the angle does not affect the visual perception of the user, and other people beside the user can be prevented from watching the current display image.
A plurality of auxiliary light sources 14 may be provided to achieve an omnidirectional peep-proof display. The incident angle theta between the emergent light of the auxiliary light source 14 and the display device is not less than 40 degrees and less than 90 degrees. Optionally, the display device further includes an optical sensor, configured to detect an intensity of ambient light, and when the third instruction is executed, control the state of the auxiliary light source 14 based on the intensity of the ambient light, if the intensity of the ambient light is greater than a set threshold, the display module 11 may be used to implement anti-peeping display based on the current strong ambient light, and at this time, the auxiliary light source 14 may be turned off, and if the intensity of the ambient light is not greater than the set threshold, the display module may be turned on based on the current weak ambient light that cannot implement anti-peeping display well.
As shown in fig. 6b, fig. 6b is a schematic diagram illustrating a principle of calculating an incident angle θ of the auxiliary light source in the display device shown in fig. 6a, taking the display module 11 as an OLED display module, wherein the primary reflection function is a common cathode, the distance between the auxiliary light source 14 and the common cathode is set to be H, and the length of a connection line between the left boundary of the auxiliary light source 14 and the left edge of the display module 11 is set to be L1The incident angle corresponding to the connecting line is theta1Then cos θ1＝H/L1So that the auxiliary light source corresponds to the incident angle theta of the left edge of the display area of the display module 111Is H/L1The inverse cosine value of the ratio.
Similarly, the length of the connecting line of the right edge of the auxiliary light source is L2The incident angle corresponding to the connecting line is theta2Then cos θ2＝H/L2So that the auxiliary light source corresponds to the incident angle theta of the right edge of the display area of the display module 112Is H/L2The inverse cosine value of the ratio.
The controller 13 may be configured to execute at least one of the first instruction, the second instruction, and the third instruction.
In the embodiment of the application, can set up display module assembly 11 shows that image corresponds light and is first linear polarization light, no matter like this adjust module assembly 12 and be in the first state or be in the second state, the light that image corresponds all can be through adjusting module assembly 12 outgoing to guarantee normal demonstration. In other manners, the light corresponding to the image displayed by the display module 11 may also be unpolarized light. In the embodiment of the application, unpolarized light is natural light. The wavelength range of the interference light emitted by the auxiliary light source 14 can be 380nm-780nm, and the interference light covers the visible light wave band. The auxiliary light source 14 may be an LED light source device.
In the display device according to the embodiment of the application, the first adjusting element 121 is a polarizer, and can allow a first linearly polarized light to pass through and block a second linearly polarized light perpendicular to the polarization direction of the first linearly polarized light from passing through. The second adjusting element 122 can convert incident linearly polarized light into circularly polarized light in a first state, the second adjusting element 122 is equivalent to a quarter-wave plate, the second adjusting element 122 is in a second state, the polarization state of incident light is not changed, and the second adjusting element 122 is equivalent to a flat lens.
As shown in fig. 7, fig. 7 is a schematic structural diagram of a second adjustment element provided in an embodiment of the present application, where the second adjustment element 122 includes a first transparent electrode 122a and a second transparent electrode 122b that are oppositely disposed, and a dielectric layer 122c located between the two electrodes; the first transparent electrode 122a and the second transparent electrode 122b are used for adjusting the optical property of the dielectric layer 122c based on a control voltage, so that the adjusting module 12 is in the first state or the second state.
The dielectric layer 122c may be PDLC (polymer dispersed liquid crystal) or bistable or birefringent liquid crystal material. When the first transparent electrode 122a and the second transparent electrode 122b are not energized, the dielectric layer 122c is equivalent to a quarter-wave plate, and the liquid crystal molecules are arranged as shown in fig. 7, and can convert incident linearly polarized light into circularly polarized light or convert incident circularly polarized light into linearly polarized light. At this moment, if display module assembly 11 carries out image display, can block the first linear polarization light outgoing that comes from the ambient light that display module assembly 11 reflects, can improve the display visual angle scope, avoid display module assembly 11 reverberation to show the visual angle influence for display module assembly 11 is in wide angle display state.
As shown in fig. 8, fig. 8 is a schematic diagram of the arrangement of the liquid crystal molecules of the second adjusting element shown in fig. 7 under the control voltage, and an upper diagram and a lower diagram in fig. 8 are schematic diagrams respectively showing the arrangement of the positive liquid crystal molecules and the negative liquid crystal molecules under the corresponding control voltage, and the liquid crystal molecules are respectively arranged in parallel to the electric field or in perpendicular to the electric field, and are in a light passing state, which is equivalent to a flat lens, and do not change the polarization state and lose the function of a quarter-wave plate. At this moment, if the display module 11 is in the display state, the display viewing angle thereof will be influenced by the first linearly polarized light reflected by the display module 11, and the display module is in the narrow viewing angle state, so that peeping can be prevented. If display module assembly 11 is in non-display state, can utilize display module assembly 11 reflection light can pass through display device outgoing, can regard display device as the speculum to use.
As shown in fig. 9, fig. 9 is a schematic structural diagram of another display device provided in this embodiment of the present application, based on the foregoing embodiment, in the display device shown in fig. 9, the display module 11 includes a first conductive layer 111, and the first conductive layer 111 is a touch electrode, a display electrode, or an electromagnetic shielding layer; the first transparent electrode 122a is located on a side of the dielectric layer 122c facing the display module 11, and the first conductive layer 111 can be reused as the first transparent electrode 122 a. In this way, the first conductive layer 111 in the multiplexing display module 11 is used as the first transparent electrode 122a of the second adjusting element 122, and the first transparent electrode 122a does not need to be separately manufactured, so that the display device has a thinner thickness.
As shown in fig. 10, fig. 10 is a schematic structural diagram of another display device provided in this embodiment of the present application, and based on the foregoing implementation, in the display device shown in fig. 10, the display module 11 is a self-luminous display module (e.g., an OLED display module) and has a substrate 113 and a self-luminous pixel array 112 (e.g., an OLED pixel array) disposed on the substrate 113, a side of the self-luminous pixel array 112 facing away from the substrate 113 has a common cathode 114, and the common cathode 114 serves as the first transparent electrode 122 a. In this way, the common cathode 114 in the display module 11 is reused as the first transparent electrode 122a of the second adjusting element 122, and the first transparent electrode 122a does not need to be separately manufactured, so that the display device has a thinner thickness.
The OLED display module comprises an OLED pixel array, wherein the OLED pixel array comprises a plurality of OLED pixels, each OLED pixel comprises an individual anode 115, and all OLED pixels comprise a common cathode 114.
As shown in fig. 11, fig. 11 is a schematic structural diagram of another display device provided in an embodiment of the present application, and based on the foregoing implementation, in the display device shown in fig. 11, the display device further includes: the touch component 31 is disposed on a side of the second adjusting element 122 away from the display module 11, the touch component 31 has a second conductive layer 32, and the second conductive layer 32 is a touch electrode or an electromagnetic shielding layer of the touch component 31; the second transparent electrode 122b is located on a side of the dielectric layer 122c away from the display module 11, and the second conductive layer 32 is multiplexed as the second transparent electrode 122 b. In this way, the second conductive layer 32 in the touch assembly 31 is reused as the second transparent electrode 122b of the second adjusting element 122, and the second transparent electrode 122b does not need to be separately manufactured, so that the display device has a thinner thickness. The touch-sensing component 31 has a substrate 33, and the second conductive layer 32 is disposed on the substrate 33.
As shown in fig. 12, fig. 12 is a schematic structural diagram of another display device according to an embodiment of the present disclosure, in which a display module 11 is an OLED display module, and includes a reflective layer 1, a TFT substrate 2, an anode layer 3, a light emitting functional layer 4, a cathode layer 5, and a cover glass 6, which are sequentially stacked. The adjusting module 12 is arranged above the cover glass 6 and has a first adjusting element 121 and a second adjusting element.
The light emitting function layer 4 includes an OLED pixel array including a plurality of OLED pixels. The anode layer 3 comprises a plurality of anodes in one-to-one correspondence with the OLED pixels. The cathode layer 5 is a common cathode for each OLED pixel. The general cathode layer 5 is an aluminum or silver electrode, and has good reflection performance and strong reflection performance. And other layer structures in the OLED display module also have certain reflection performance. According to the technical scheme, the light reflected by the OLED display module can be selectively emitted or blocked by the display equipment and cannot be emitted, so that the function of setting is realized by utilizing the light reflected by the display module 11.
In the embodiment shown in fig. 12, the OLED display module and the adjusting module 12 are separately prepared. In other ways, the conductive layer in the OLED display panel may be multiplexed as the first transparent electrode 122a of the second adjustment element 122.
If the OLED display module is provided with conductive protection layers respectively on and under the TFT circuits in the TFT substrate 2 for electromagnetic compatibility (MC) and electrostatic discharge (ESD), a layer of the conductive protection layer may be reused as the first transparent electrode 122 a.
If the OLED display module has a touch function, the TFT substrate has a touch electrode layer thereon, and the touch electrode layer can be reused as the first transparent electrode 122 a.
As shown in fig. 13, fig. 13 is a schematic diagram illustrating a principle of preventing the display module from reflecting light when the adjusting module is in the second state according to the embodiment of the present application, when external unpolarized light S1 enters the display device, a first linearly polarized light S2 adapted to the polarization direction of the first adjusting element 121 is formed by the first adjusting element 121, and a first linearly polarized light S2 forms a first polarized light S3 by the second adjusting element 122. The first polarized light S3 is either left-circularly polarized light or right-circularly polarized light. The display module 11 reflects the first polarized light S3 to form a second polarized light S4, and the second polarized light S4 is the other of the left circularly polarized light and the right circularly polarized light. After the second polarized light S4 passes through the second adjusting element 122, a second linearly polarized light S5 is formed, and the second linearly polarized light S5 rotates 90 ° with respect to the polarization direction of the first linearly polarized light S2, so that the second linearly polarized light cannot pass through the first adjusting element 121, and the purpose of preventing the reflected light of the display module 11 from exiting the display device is achieved.
Based on the foregoing embodiment, another embodiment of the present application further provides an electronic device, where the electronic device is shown in fig. 14, and fig. 14 is a schematic structural diagram of the electronic device provided in the embodiment of the present application, and the electronic device includes: a display device 10 and a controller 13.
The display device 10 is provided with a display module and an adjusting module; the display module can reflect the first polarized light to form second polarized light, can reflect linearly polarized light, and does not change the polarization direction of the linearly polarized light; the adjusting module is arranged on the light emitting side of the display module; the adjusting module has a first state and a second state; the adjusting module can transmit first linearly polarized light and block second linearly polarized light vertical to the polarization state of the first linearly polarized light; if the display module is in the first state, the adjusting module can convert externally incident non-polarized light into first polarized light to be incident on the display module, and can convert second polarized light formed by the first polarized light reflected by the display module into second linearly polarized light so as to block the second linearly polarized light formed by the reflection of the display module; if the display module is in the second state, the adjusting module can convert externally incident non-polarized light into the first linearly polarized light to be incident into the display module, and the first linearly polarized light reflected by the display module can be emergent. The display device 10 is any one of the display devices of the above embodiments.
The controller 13 is used for controlling the display module to display images and controlling the state of the adjusting module. The functions of the controller 13 can be described with reference to the above embodiments, and are not described herein again.
The electronic equipment comprises the display equipment, can select based on the requirement the state of the adjusting module so that the light reflected by the display module can be emitted through the display equipment or can not be emitted through the display equipment, and the light reflected by the display module is utilized based on different use requirements.
The electronic equipment can be an automobile rearview mirror, and the rearview mirror is display equipment of a vehicle event data recorder. Can be when showing formation record image for the regulation module is in first state, prevents that display module assembly reflection light from emiting, improves display quality and visual field angle. When not showing driving record image, the display module assembly is in non-display state promptly, can be so that adjust the module assembly and be in the second state to use as the speculum.
The electronic equipment can also be mobile phones, tablet computers or notebook computers and other electronic equipment with a display function, and the adjusting module can be selected to be in the first state or the second state based on requirements, so that the reflected light of the display module can be selectively emitted through the display equipment or the reflected light of the display module can not be emitted through the display equipment.
When the adjusting module is in the second state, if display module is in the non-display state, utilize the display module reflection light of display device outgoing, can use for the mirror with the electronic equipment is multiplexing.
The embodiments in the present description are described in a progressive manner, or in a parallel manner, or in a combination of a progressive manner and a parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be referred to each other. For the electronic device disclosed in the embodiment, since it corresponds to the display device disclosed in the embodiment, the description is relatively simple, and the relevant points can be referred to the description of the corresponding part of the display device.
It should be noted that in the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A display device, comprising:
the display module can reflect the first polarized light to form second polarized light, can reflect linearly polarized light, and does not change the polarization direction of the linearly polarized light; one of the first polarized light and the second polarized light is left-handed circularly polarized light, and the other one is right-handed circularly polarized light;
the adjusting module is arranged on the light emergent side of the display module; the adjusting module has a first state and a second state; the adjusting module can transmit first linearly polarized light and block second linearly polarized light vertical to the polarization state of the first linearly polarized light;
if the display module is in the first state, the adjusting module can convert externally incident non-polarized light into first polarized light to be incident on the display module, and can convert second polarized light formed by the first polarized light reflected by the display module into second linearly polarized light so as to block the second linearly polarized light formed by the reflection of the display module;
if the display module is in the second state, the adjusting module can convert externally incident non-polarized light into the first linearly polarized light to be incident into the display module, and the first linearly polarized light reflected by the display module can be emergent.
2. The display apparatus of claim 1, the adjustment module comprising:
the first adjusting element is arranged on the light emitting side of the display module and used for converting externally incident non-polarized light into the first linearly polarized light and blocking the second linearly polarized light;
the second adjusting element is arranged on one side, facing the display module, of the first adjusting element; if the first adjusting element is in the first state, the second adjusting element is used for converting the first linearly polarized light emitted by the first adjusting element into the first polarized light to be incident to the display module, and if the second adjusting element is in the second state, the second adjusting element does not change the polarization direction of the first linearly polarized light emitted by the first adjusting element and does not change the polarization direction of the first linearly polarized light reflected by the display module.
3. The display device of claim 1, further comprising:
the controller is respectively connected with the display module and the adjusting module;
the controller is used for executing a first instruction, controlling the display module to display an image, controlling the adjusting module to be in the first state, and blocking the reflected light of the display module through the adjusting module.
4. The display device of claim 1, further comprising:
the controller is respectively connected with the display module and the adjusting module;
the controller is used for executing a second instruction, controlling the display module to be in a non-display state, and controlling the adjusting module to be in the second state, so that the reflected light of the display module can be emitted through the adjusting module.
5. The display device of claim 1, further comprising:
the controller is respectively connected with the display module and the adjusting module;
the auxiliary light source is connected with the controller, is arranged on one side of the adjusting module, which is far away from the display module, and is not overlapped with the display area of the display module;
the controller is used for executing a third instruction, controlling the display module to display an image, controlling the adjusting module to be in the second state, and controlling the auxiliary light source to emit interference light rays towards the display area so as to improve the strength of the oblique reflection light rays of the display module transmitting through the adjusting module.
6. The display device according to claim 2, wherein the second adjustment element comprises a first transparent electrode and a second transparent electrode which are oppositely arranged, and a dielectric layer located between the two electrodes in the light emitting direction of the display module;
the first transparent electrode and the second transparent electrode are used for adjusting the optical property of the medium layer based on a control voltage, so that the adjusting module is in the first state or the second state.
7. The display device according to claim 6, wherein the display module comprises a first conductive layer, and the first conductive layer is a touch electrode, a display electrode, or an electromagnetic shielding layer;
the first transparent electrode is positioned on one side of the dielectric layer facing the display module, and the first conducting layer is multiplexed to be used as the first transparent electrode.
8. A display device according to claim 7, the display module being a self-emissive display module having a substrate and a self-emissive pixel array disposed on the substrate, the self-emissive pixel array having a common cathode on a side facing away from the substrate, the common cathode being the first transparent electrode.
9. The display device of claim 6, further comprising:
the touch control assembly is arranged on one side, away from the display module, of the second adjusting element and is provided with a second conducting layer, and the second conducting layer is a touch control electrode or an electromagnetic shielding layer of the touch control assembly;
the second transparent electrode is positioned on one side of the dielectric layer, which is far away from the display module, and the second conducting layer is multiplexed to be used as the second transparent electrode.
10. An electronic device, comprising: a display device and a controller;
the display equipment is provided with a display module and an adjusting module; the display module can reflect the first polarized light to form second polarized light, can reflect linearly polarized light, and does not change the polarization direction of the linearly polarized light; the adjusting module is arranged on the light emitting side of the display module and has a first state and a second state; the adjusting module can transmit first linearly polarized light and block second linearly polarized light vertical to the polarization state of the first linearly polarized light; if the display module is in the first state, the adjusting module can convert externally incident non-polarized light into first polarized light to be incident on the display module, and can convert second polarized light formed by the first polarized light reflected by the display module into second linearly polarized light so as to block the second linearly polarized light formed by the reflection of the display module; if the display module is in the second state, the adjusting module can convert externally incident non-polarized light into the first linearly polarized light to be incident on the display module, and the first linearly polarized light reflected by the display module can be emergent;
the controller is used for controlling the display module to display images and controlling the state of the adjusting module.
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Application publication date: 20200505 |