CN214540287U - Peep-proof display device - Google Patents
Peep-proof display device Download PDFInfo
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- CN214540287U CN214540287U CN202120342316.4U CN202120342316U CN214540287U CN 214540287 U CN214540287 U CN 214540287U CN 202120342316 U CN202120342316 U CN 202120342316U CN 214540287 U CN214540287 U CN 214540287U
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Abstract
The utility model provides a peep-proof display device, which comprises a peep-proof module, a display module and a backlight module which are arranged in a stacking way; the utility model discloses add peep-proof module on the display module, wherein peep-proof module has the peep-proof structure of base plate-electrode layer-alignment layer-liquid crystal layer-alignment layer-electrode layer-base plate, through applying the electric field to the liquid crystal layer, makes the liquid crystal molecule of liquid crystal layer deflect, combines the polaroid realization to the restriction of emergent ray direction again to reach fine adjustable peep-proof effect; and the display module is provided with a display structure of a brightness enhancement film, a display screen and a polaroid, so that light rays can be gathered to improve the brightness, the display brightness can be increased in the sharing mode, the peeping prevention angle does not influence the brightness in the peeping prevention mode, and the display brightness is improved in the front view angle.
Description
Technical Field
The utility model belongs to the technical field of show, a peep-proof display device is related to.
Background
With the scientific progress, the information security is very important, so that the data information security is protected.
Modern people use products with liquid crystal displays, such as mobile phones, notebook computers, tablet computers, and the like, in public places. For the tablet pc, when a user uses the tablet pc, the conventional liquid crystal display viewing angle design is easy to allow surrounding people to see the image displayed by the liquid crystal display from the side, so that the user cannot keep personal privacy and maintain high confidentiality of personal data.
In the current static peep-proof technology, a peep-proof device achieves a peep-proof function by using a peep-proof film attached to the surface of a screen. This technique can only be fixed and use under the privacy mode, if will switch to the sharing mode, need the manual removal peep-proof membrane, and is inconvenient, and in addition, the display screen of this technique can lose the luminance and the display quality of display screen under the privacy mode.
In the current dynamic privacy protection technology, another technology is to control the dark state of the display panel to generate large-viewing-angle light leakage in a narrow-viewing-angle mode, so that the contrast of the large viewing angle is reduced, and the privacy protection effect is realized. However, the peep-proof effect is not ideal, and the displayed content can still be clearly seen under a large visual angle.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a peep-proof display device can solve the unsatisfactory condition of display panel peep-proof effect under the peep-proof mode.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a peep-proof display device, including peep-proof module, display module and the backlight module of from top to bottom range upon range of setting, wherein:
the peep-proof module comprises at least one peep-proof structure, each peep-proof structure comprises two oppositely arranged substrates, an electrode layer positioned on the inner side of the substrate, an orientation layer positioned on the inner side of the electrode layer and a liquid crystal layer arranged between the orientation layers, and a polaroid is arranged on the outer side of the substrate far away from the display module;
the display module includes range upon range of first brightness enhancement film and the display screen that sets up, first brightness enhancement film with the peep-proof module laminating, the axle that sees through of first brightness enhancement film with the axle that sees through of polaroid is parallel.
Preferably, the peep-proof module comprises a first peep-proof structure and a second peep-proof structure which are arranged in a stacking way,
the first privacy feature comprises:
the first substrate and the second substrate are oppositely arranged, and the first conductive electrode layer is positioned on the inner side of the first substrate; a second conductive electrode layer positioned at the inner side of the second substrate, a first alignment layer and a second alignment layer positioned at the inner sides of the first conductive electrode layer and the second conductive electrode layer, and a first liquid crystal layer positioned between the first alignment layer and the second alignment layer;
the second privacy feature comprises:
the third substrate and the fourth substrate are oppositely arranged; a third conductive electrode layer located inside the third substrate; a fourth conductive electrode layer located on an inner side of the fourth substrate; a third alignment layer and a fourth alignment layer located inside the third conductive electrode layer and the fourth conductive electrode layer, and a second liquid crystal layer located between the third alignment layer and the fourth alignment layer.
Preferably, a first polarizer is disposed on a side of the first substrate away from the first conductive electrode layer, and a second polarizer is disposed between the second substrate and the third substrate.
Preferably, the transmission axis of the first polarizer is parallel to the transmission axis of the second polarizer.
Preferably, the display module further includes a third polarizer, the third polarizer is disposed below the display screen, and a transmission axis of the first brightness enhancement film is perpendicular to a transmission axis of the third polarizer.
Preferably, the first brightness enhancement film is a transflective brightness enhancement film having a polarizing effect.
Preferably, the backlight module includes a backlight source providing brightness.
Preferably, the first peep-proof structure and the second peep-proof structure are bonded together in a full-bonding or frame-bonding manner, and the peep-proof module, the display module and the backlight module are bonded together in a full-bonding or frame-bonding manner.
The beneficial effects of the utility model reside in that: the utility model provides a peep-proof display device, add the peep-proof module on the display module, wherein peep-proof module has the peep-proof structure of base plate-electrode layer-liquid crystal layer-electrode layer-base plate, through applying the electric field to the liquid crystal layer, make the liquid crystal molecule of liquid crystal layer deflect, and the realization of reuniting the polaroid realizes the restriction to the emergent ray direction, thereby reaches fine adjustable peep-proof effect; and the display module is provided with a display structure of a brightness enhancement film, a display screen and a polaroid, so that light rays can be gathered to improve the brightness, the display brightness can be increased in the sharing mode, the peeping prevention angle does not influence the brightness in the peeping prevention mode, and the display brightness is improved in the front view angle.
Drawings
The following detailed description of the specific structure of the present invention with reference to the accompanying drawings
Fig. 1 is a schematic structural view of a peep-proof device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a peep-proof module in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a display module according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Fig. 1 shows a schematic view of a controllable peep-proof display device provided in the embodiment of the present application, as shown in fig. 1, the utility model provides a peep-proof display device, which comprises a peep-proof module 100, a display module 200 and a backlight module 300 stacked from top to bottom.
The peep-proof module 100 mentioned in the present application is installed and completely covered right above the display module 200, and an intermediate layer is arranged between the two, and the intermediate layer is a transparent adhesive layer.
The peep-proof module 100 comprises at least one peep-proof structure, wherein each peep-proof structure comprises two oppositely arranged substrates, an electrode layer positioned on the inner side of the substrate, an orientation layer positioned on the inner side of the electrode layer and a liquid crystal layer arranged between the electrode layers; a polaroid is arranged on the outer side of the substrate far away from the display module; fig. 2 is a detailed sectional structure diagram of the peep-proof module 100 according to an embodiment of the present invention.
As shown in fig. 2, the peep-proof module 100 in the embodiment of the present invention includes a first peep-proof structure L1 and a second peep-proof structure L2 which are stacked.
Specifically, the first peep-proof structure L1 includes: the liquid crystal display panel comprises a first substrate 111 and a second substrate 117 which are oppositely arranged, wherein a first conductive electrode layer 112 and a second conductive electrode layer 116 are symmetrically arranged on the inner sides of the two substrates respectively, a first alignment layer 113 and a second alignment layer 115 and a first liquid crystal layer 114 positioned between the first alignment layer 113 and the second alignment layer 115 are arranged on the inner sides of the two conductive electrode layers respectively, and a first polarizer 110 is arranged on one side of the first substrate 111, which is different from the first conductive electrode layer 112; the second peeping prevention structure L2 includes: the liquid crystal display panel comprises a third substrate 121 and a fourth substrate 127 which are arranged oppositely, wherein a third conductive electrode layer 122 and a fourth conductive electrode layer 126 are symmetrically arranged on the inner sides of the two substrates respectively, a third alignment layer 123 and a fourth alignment layer 125 and a second liquid crystal layer 124 positioned between the third alignment layer 123 and the fourth alignment layer 125 are arranged on the inner sides of the two conductive electrode layers respectively, and a second polarizer 120 is arranged on one side of the third substrate 121, which is different from the third conductive electrode layer 122, namely the second polarizer 120 is arranged between the second substrate 117 and the third substrate 121.
Fig. 3 is a schematic cross-sectional view of a display module 200 according to an embodiment of the present invention. As shown in fig. 3, the display module 200 of the present invention includes: the display panel comprises a first brightness enhancement film 210, a display screen 211 and a third polarizer 212 which are arranged in a stacked manner, wherein the first brightness enhancement film 210 is attached to the peep-proof module 100, the first brightness enhancement film 210 is a semi-reflective and semi-transparent brightness enhancement film with a polarization effect, the backlight module 300 is attached to the third polarizer 212, and the backlight module 300 comprises a backlight source for providing brightness.
Further, the display 211 may be a thin film transistor display.
The above is a structural composition of the peep-proof display device, wherein, the attaching manner between the first peep-proof structure L1 and the second peep-proof structure L2 may be full attaching or frame attaching, and the attaching manner between the peep-proof module 100, the display module 200 and the backlight module 300 may be full attaching or frame attaching.
The relative positions of the polarizers and the brightness enhancement films according to the embodiments of the present invention will be described below.
As shown in fig. 3, the transmission axis of the first brightness enhancement film 210 is perpendicular to the transmission axis of the third polarizer 212, and the display panel can normally display.
As shown in FIG. 2, the transmission axis of the first polarizer 110 is parallel to the transmission axis of the second polarizer 120, and the transmission axis of the second polarizer 120 is parallel to the transmission axis of the first brightness enhancement film 210.
In the present embodiment, the brightness of the display module at the viewing angle of 0 degree after passing through the privacy module is set to 100%, and the later mentioned privacy effect and sharing effect are measured with reference to this brightness.
The embodiment of the utility model provides an in, the first conductive electrode layer 112 and the second conductive electrode layer 116 voltage difference of first liquid crystal layer 114 both sides reach V1, and the third conductive electrode layer 122 and the fourth conductive electrode layer 126 voltage difference of second liquid crystal layer 124 both sides reach V2, and the liquid crystal molecule of two liquid crystal layers all takes place to deflect this moment, and the light that display module assembly 200 was emergent passes through the utility model provides an in the time of the peep-proof module, the polarization direction changes, and 45 degrees can't be emergent to the light base plate under the 90 degrees visual angles this moment, and luminance is 1.5% to 0.07% of luminance under the 0 degree visual angle, reaches the peep-proof effect this moment.
Further, the voltage difference of the first conductive electrode layer 112 and the second conductive electrode layer 116 of the first liquid crystal layer 114 both sides is 0, and the voltage difference of the third conductive electrode layer 122 and the fourth conductive electrode layer 126 of the second liquid crystal layer 124 both sides is 0, and the liquid crystal molecules of the two liquid crystal layers do not deflect at this moment, and the light emitted by the display module 200 passes through the embodiment of the utility model provides an in the time of the peep-proof module, the polarization direction does not change, and the light homoenergetic emitted from 0 degree to 90 degrees visual angle at this moment, and the luminance is 99.8% to 99% of the luminance under 0 degree visual angle, reaches the sharing effect this moment.
Preferably, the first liquid crystal layer and the second liquid crystal layer are electrically controlled birefringent liquid crystal layers.
In summary, the peep-proof display device provided by the present invention adds the peep-proof module on the display module, wherein the peep-proof module has a peep-proof structure of substrate-electrode layer-alignment layer-liquid crystal layer-alignment layer-electrode layer-substrate, and applies an electric field to the liquid crystal layer to deflect the liquid crystal molecules of the liquid crystal layer, and then combines with the polarizer to realize the restriction of the emergent light direction, thereby achieving a good adjustable peep-proof effect; the display module is provided with a display structure of a brightness enhancement film, a display screen and a polaroid, light rays are favorably gathered to improve the brightness, the displayed brightness can be increased in the sharing mode, the brightness is not influenced by the peeping-proof angle in the peeping-proof mode, and the displayed brightness is improved at the front viewing angle.
The first … … and the second … … are only used for name differentiation and do not represent how different the importance and position of the two are.
Here, the upper, lower, left, right, front, and rear represent only relative positions thereof and do not represent absolute positions thereof.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a peep-proof display device which characterized in that, peep-proof display device is including the peep-proof module, display module and the backlight module of from top to bottom range upon range of setting, wherein:
the peep-proof module comprises at least one peep-proof structure, and each peep-proof structure comprises two oppositely arranged substrates, an electrode layer positioned on the inner side of the substrate, an orientation layer positioned on the inner side of the electrode layer and a liquid crystal layer arranged between the orientation layers; a polaroid is arranged on the outer side of the substrate far away from the display module;
the display module includes range upon range of first brightness enhancement film and the display screen that sets up, first brightness enhancement film with the peep-proof module laminating, the axle that sees through of first brightness enhancement film with the axle that sees through of polaroid is parallel.
2. The privacy display device of claim 1, wherein the privacy module comprises a first privacy structure and a second privacy structure arranged in a stack,
the first privacy feature comprises:
the first substrate and the second substrate are oppositely arranged, and the first conductive electrode layer is positioned on the inner side of the first substrate; a second conductive electrode layer positioned at the inner side of the second substrate, a first alignment layer and a second alignment layer positioned at the inner sides of the first conductive electrode layer and the second conductive electrode layer, and a first liquid crystal layer positioned between the first alignment layer and the second alignment layer;
the second privacy feature comprises:
the third substrate and the fourth substrate are oppositely arranged; a third conductive electrode layer located inside the third substrate; a fourth conductive electrode layer located on an inner side of the fourth substrate; a third alignment layer and a fourth alignment layer located inside the third conductive electrode layer and the fourth conductive electrode layer, and a second liquid crystal layer located between the third alignment layer and the fourth alignment layer.
3. The privacy display device of claim 2, wherein a first polarizer is disposed on a side of the first substrate away from the first conductive electrode layer, and a second polarizer is disposed between the second substrate and the third substrate.
4. The privacy display device of claim 3, wherein the first polarizer transmission axis is parallel to the second polarizer transmission axis.
5. The privacy display device of claim 1, wherein the display module further comprises a third polarizer disposed below the display screen, and wherein a transmission axis of the first brightness enhancement film is perpendicular to a transmission axis of the third polarizer.
6. The privacy display device of claim 5, wherein the first brightness enhancement film is a transflective brightness enhancement film having polarizing effect.
7. The privacy display device of claim 1, wherein the backlight module comprises a backlight source that provides brightness.
8. The privacy display device of claim 2, wherein the first privacy structure and the second privacy structure are attached together by a full-lamination or frame-lamination, and the privacy module, the display module, and the backlight module are attached together by a full-lamination or frame-lamination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120342316.4U CN214540287U (en) | 2021-02-05 | 2021-02-05 | Peep-proof display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120342316.4U CN214540287U (en) | 2021-02-05 | 2021-02-05 | Peep-proof display device |
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| Publication Number | Publication Date |
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| CN214540287U true CN214540287U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120342316.4U Active CN214540287U (en) | 2021-02-05 | 2021-02-05 | Peep-proof display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326178A (en) * | 2021-12-30 | 2022-04-12 | Oppo广东移动通信有限公司 | Liquid crystal display device, display screen, electronic equipment and control method |
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2021
- 2021-02-05 CN CN202120342316.4U patent/CN214540287U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326178A (en) * | 2021-12-30 | 2022-04-12 | Oppo广东移动通信有限公司 | Liquid crystal display device, display screen, electronic equipment and control method |
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