CN211014957U - Dimming structure and display device - Google Patents
Dimming structure and display device Download PDFInfo
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- CN211014957U CN211014957U CN201922486407.0U CN201922486407U CN211014957U CN 211014957 U CN211014957 U CN 211014957U CN 201922486407 U CN201922486407 U CN 201922486407U CN 211014957 U CN211014957 U CN 211014957U
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Abstract
The utility model discloses a dimming structure and display device, wherein, dimming structure includes relative first drive electrode and the second drive electrode that sets up, sets up the liquid crystal layer between first drive electrode and second drive electrode, and the second drive electrode includes a plurality of first strip electrodes and second strip electrode, and a plurality of first strip electrodes and second strip electrode interval set up, and first strip electrode and second strip electrode set up in turn; the light adjusting structure further comprises a prism strip, and the prism strip is arranged corresponding to the second strip-shaped electrode. The utility model discloses technical scheme lets display device can adjust visual angle, reaches the peep-proof effect.
Description
Technical Field
The utility model relates to a show technical field, in particular to structure and display device adjust luminance.
Background
With the development of technology, more and more display devices display images by using liquid crystal display technology. The current liquid crystal display technology has enabled the liquid crystal screen to have a large viewing angle, that is, the user can clearly see the display content no matter from which direction the liquid crystal screen is viewed from up, down, left, and right.
However, as the viewing angle of the lcd screen increases, new problems arise, such as documents related to sensitive contents and confidential information being displayed and being easily seen by people around the lcd screen, resulting in information being stolen.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a structure and display device adjust luminance aims at letting display device can adjust visual angle, reaches the peep-proof effect.
In order to achieve the above object, the present invention provides a light modulation structure, which includes a first driving electrode and a second driving electrode disposed oppositely, and a liquid crystal layer disposed between the first driving electrode and the second driving electrode, wherein the second driving electrode includes a plurality of first strip electrodes and second strip electrodes, the first strip electrodes and the second strip electrodes are disposed at intervals, and the first strip electrodes and the second strip electrodes are disposed alternately; the light adjusting structure further comprises a prism strip, and the prism strip is arranged corresponding to the second strip-shaped electrode.
In an embodiment, no voltage is applied to the first driving electrode or/and the second driving electrode, so that the dimming structure is in a non-light-tight state; or applying voltage to the first driving electrode and the first strip-shaped electrode and not applying voltage to the second strip-shaped electrode, so that the dimming structure is in a partial light-transmitting state; or applying voltage to the first driving electrode, the first strip-shaped electrode and the second strip-shaped electrode simultaneously to enable the dimming structure to be in a light-transmitting state; or applying voltage to the first driving electrode and the second strip electrode at the same time and not applying voltage to the first strip electrode, so that the dimming structure is in a light-transmitting state.
In an embodiment, the light adjusting structure further includes a diverging film disposed on the first driving electrode, the diverging film is provided with a plurality of parallel prism strips, and each prism strip corresponds to one of the second strip electrodes.
In an embodiment, each of the prism strips includes a plurality of light scattering strips arranged side by side, and each of the plurality of light scattering strips corresponds to one of the second strip electrodes.
In one embodiment, the light scattering bar has a diverging surface disposed away from the first drive electrode.
In one embodiment, the cross-sectional shape of the light scattering bars in the width direction is set to be a regular triangle or a semicircle.
In one embodiment, the cross section of the light scattering bars is a regular triangle, and the angle of the light scattering bars facing the diverging surface ranges from 30 degrees to 60 degrees.
In an embodiment, the plurality of prism strips are arranged at intervals, and a distance between two adjacent prism strips ranges from 3 micrometers to 80 micrometers.
In one embodiment, the thickness of the liquid crystal layer ranges from 2 micrometers to 15 micrometers.
The utility model provides a display device, display device includes as above dimming structure and display element.
The technical scheme of the utility model is that a first driving electrode and a second driving electrode are oppositely arranged and a liquid crystal layer is arranged between the first driving electrode and the second driving electrode, the second driving electrode comprises a plurality of first strip electrodes and second strip electrodes, the first strip electrodes and the second strip electrodes are arranged at intervals, and the first strip electrodes and the second strip electrodes are alternately arranged; the light adjusting structure further comprises a prism strip, and the prism strip is arranged corresponding to the second strip-shaped electrode; so set up for the second drive electrode has wide visual angle state and peep-proof state, during the peep-proof state, first drive chip control first drive electrode with first strip electrode circular telegram printing opacity, second drive chip control the second strip electrode is obstructed the electricity light tight, and then reduces display device's visual angle, lets the secret content that display device shows be difficult to watch by the personnel beyond the user to reach the peep-proof effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a display device according to the present invention;
fig. 2 is a schematic structural view of the light-adjusting structure of the display device of the present invention in a transparent state;
fig. 3 is a schematic structural diagram of the dimming structure of the display device of the present invention in the opaque state.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
14 | |
| 11 | |
15 | Prism strip |
| 12 | A |
151 | |
| 13 | Second driving electrode | 151a | Divergent surface |
| 131 | A |
20 | |
| 132 | Second strip-shaped electrode |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a structure of adjusting luminance 10.
In the embodiment of the present invention, referring to fig. 1 to 3, the dimming structure 10 includes a first driving electrode 12 and a second driving electrode 13 which are oppositely disposed, and a liquid crystal layer 11 disposed between the first driving electrode 12 and the second driving electrode 13, the second driving electrode 13 includes a plurality of first strip electrodes 131 and second strip electrodes 132, the plurality of first strip electrodes 131 and the second strip electrodes 132 are disposed at intervals, and the first strip electrodes 131 and the second strip electrodes 132 are alternately disposed; the light modulating structure further comprises a prism strip 15. The prism strip 15 is arranged corresponding to the second strip electrode.
In this embodiment, the liquid crystal layer 11 is a polymer dispersed liquid crystal, and the liquid crystal layer 11 mainly operates to switch between a scattering state, a transparent state, and a partially transmissive state. When no voltage is applied to the first driving electrode 12 and the second driving electrode 13 on both sides of the liquid crystal layer 11, the liquid crystal material is randomly arranged, so that light cannot penetrate through the film, and the observed effect is a milky opaque state; when a voltage is applied to the first driving electrode 12 and the second driving electrode 13 on both sides of the liquid crystal layer 11, an electric field is formed between the first driving electrode 12 and the second driving electrode 13, the polymer liquid crystal material in the middle of the film is orderly arranged under the action of the electric field, so that light can penetrate through the film, and the effect is seen as a transparent colorless film.
In order to adjust the light modulation structure 10 to switch different light transmission states, no voltage is applied to the first driving electrode 12 and the second driving electrode 13, and the liquid crystal layer 11 is in a non-light transmission state, so that the light modulation structure 10 is in the non-light transmission state; applying voltage to the first driving electrodes 12 and the first strip electrodes 131 and not applying voltage to the second strip electrodes 132, wherein the liquid crystal layer 11 corresponding to the first strip electrodes 131 is in a light-transmitting state, and the liquid crystal layer 11 corresponding to the second strip electrodes 132 is in a light-tight state, so that the light modulation structure is in a partial light-transmitting state; applying voltage to the second strip electrodes 132 of the first driving electrodes 12 and the second driving electrodes 13, and applying no voltage to the first strip electrodes 131, wherein the liquid crystal layer 11 at the corresponding position of the first strip electrodes 131 is in a non-light-tight state, the liquid crystal layer 11 at the corresponding position of the second strip electrodes 132 is in a light-transmitting state, light emitted from the corresponding position of the second strip electrodes 132 irradiates the prism strips 15, is refracted by the prism strips 15 and then is emitted in each direction, so that the emitted light can be seen from the corresponding position of the first strip electrodes 131, and the dimming structure is in a light-transmitting state; or voltage is applied to the first strip electrodes 131 and the second strip electrodes 132 of the first driving electrodes 12 and the second driving electrodes 13 at the same time, the liquid crystal layer 11 is in a light-transmitting state, and the light emitted from the positions corresponding to the second strip electrodes 132 irradiates the prism strips 15, is refracted by the prism strips 15 and then is emitted in all directions, and the liquid crystal layer 11 at the positions corresponding to the first strip electrodes 131 is in a light-transmitting state, so that the light modulation structure is in a light-transmitting state.
The technical scheme of the utility model is through setting up first drive electrode 12 and second drive electrode 13 relatively and set up liquid crystal layer 11 between first drive electrode 12 and second drive electrode 13, second drive electrode 13 includes a plurality of first strip electrodes 131 and second strip electrodes 132, and is a plurality of first strip electrodes 131 with second strip electrodes 132 interval sets up, and first strip electrodes 131 with second strip electrodes 132 set up in turn; the light adjusting structure 10 further comprises a prism strip 15, and the prism strip 15 is arranged corresponding to the second strip electrode, so that the light adjusting structure 10 can be switched to three different states of light-tight state, partial light-transmitting state and light-transmitting state; so set up for the second drive electrode has wide visual angle state and peep-proof state, during the peep-proof state, first drive chip control first drive electrode with first strip electrode circular telegram printing opacity, second drive chip control the second strip electrode is obstructed the electricity light tight, and then reduces display device's visual angle, lets the secret content that display device shows be difficult to watch by the personnel beyond the user to reach the peep-proof effect.
In an embodiment, referring to fig. 1 to fig. 3, the light modulating structure 10 further includes a diverging film 14 disposed on the first driving electrode 131, the diverging film 14 is disposed with a plurality of prism strips 15 disposed in parallel, and each prism strip 15 corresponds to one of the second strip electrodes 132.
In this embodiment, the plurality of first strip electrodes 131 are located between the second strip electrodes 132, and in the wide viewing angle mode, the prism strips 15 of the divergent film 14 are correspondingly disposed with each second strip electrode 132, so that the light can be irradiated to the prism strips 15 through the positions of the liquid crystal layer 11 corresponding to the second strip electrodes 132, and the light is refracted by the corner strips 15 and then emitted in all directions, thereby further increasing the emitting angle of the light passing through the light modulation structure 10.
In an embodiment, referring to fig. 1 to 3, the plurality of prism bars 15 are disposed at intervals, and a distance between two adjacent prism bars 15 ranges from 3 micrometers to 80 micrometers, a distance between two adjacent prism bars 15 is D1, in an embodiment, a thickness of the liquid crystal layer 11 ranges from 2 micrometers to 15 micrometers, a thickness of the liquid crystal layer 11 is D2, a viewing angle of the display device is α, and when the viewing angle α of the display device is required to be a certain value, the required thickness of the liquid crystal layer 11 and the distance between the prism bars 15 can be calculated according to a formula TAN (α/2) ═ D1/2D2, so as to adjust an exit angle of light passing through the dimming structure 10.
In an embodiment, referring to fig. 1 to 3, each of the prism bars 15 includes a plurality of light scattering bars 151 disposed side by side, and each of the light scattering bars 151 corresponds to one of the second bar electrodes 132. With this arrangement, the light emitted through the liquid crystal layer 11 corresponding to the second stripe electrodes 132 can be diffused by the plurality of light-diffusing stripes 151 at the same time, so as to further increase the emitting angle of the light passing through the light-adjusting structure 10.
Alternatively, referring to fig. 1 to 3, the light scattering bar 151 has a diverging surface 151a, and the diverging surface 151a is disposed opposite to the first driving electrode 12. In the embodiment, each light scattering bar 151 is provided with a diverging surface 151a, and the area of the diverging surface 151a is larger than the area of the other surfaces of the light scattering bar 151, so that the light energy passing through the liquid crystal layer 11 at the position corresponding to the light scattering bar 151 can be diverged to a wider range, thereby increasing the emitting angle of the light passing through the light adjusting structure 10.
Alternatively, referring to fig. 1 to 3, the cross-sectional shape of the light diffusion stripe 151 in the width direction is set to be a regular triangle or a semicircle. That is, the light-dispersing bar 151 is a triangular prism or a semicircular column. In the present embodiment, the projection direction of the light passing through the liquid crystal layer 11 is changed by the light diffusion bars 151 of a triangular prism or a semicircular column, so that the outermost light of the display device is projected more uniformly. The light-scattering bars 151 are mainly made of polyester or polycarbonate materials.
In one embodiment, the cross section of the light scattering bars 151 is a regular triangle, and the angle of the light scattering bars 151 facing the diverging surface 151a ranges from 30 degrees to 60 degrees.
In an embodiment, referring to fig. 1, the dimming structure 10 further includes a substrate, one of the substrates is disposed on the first driving electrode 12, and the second driving electrode 13 is disposed on the two substrates, respectively, and optionally, the substrate is made of PET, TAC, or PMMA.
The present invention further provides a display device, referring to fig. 1 to 3, the display device comprises the dimming structure 10 and the display unit 20, the specific structure of the dimming structure 10 refers to the above embodiments, since the display device adopts all the technical solutions of all the above embodiments,
when the display device does not display, the display unit 20 is in an off state, and the light modulation structure 10 is in an opaque state, that is, no voltage is applied to the first driving electrode 12 and the second driving electrode 13 of the light modulation structure 10.
When the display device displays in the large viewing angle mode, the display unit 20 displays an image, the dimming structure 10 is in a light-transmitting state, that is, a voltage is applied to the second strip electrodes 132 of the first driving electrodes 12 and the second driving electrodes 13, and no voltage is applied to the first strip electrodes 131, the liquid crystal layer 11 at the corresponding positions of the first strip electrodes 131 is in a light-tight state, the liquid crystal layer 11 at the corresponding positions of the second strip electrodes 132 is in a light-transmitting state, light emitted from the corresponding positions of the second strip electrodes 132 is irradiated onto the prism strips 15, and is refracted by the prism strips 15 and then emitted in all directions, so that the emitted light can be seen at the corresponding positions of the first strip electrodes 131, and the dimming structure is in a light-transmitting state; or voltage is applied to the first strip electrodes 131 and the second strip electrodes 132 of the first driving electrodes 12 and the second driving electrodes 13 at the same time, the liquid crystal layer 11 is in a light-transmitting state, and light emitted from the positions corresponding to the second strip electrodes 132 irradiates the prism strips 15, is refracted by the prism strips 15 and then is emitted in all directions, and the liquid crystal layer 11 at the positions corresponding to the first strip electrodes 131 is in a light-transmitting state, the dimming structure is in a light-transmitting state, at this time, the light passing through the dimming structure is emitted to all angles, and a user can see images displayed by the display unit display 20 from a plurality of angles, thereby realizing large-viewing-angle display of the display device.
When the display device displays images in the peep-proof mode, the display unit 20 displays images, the dimming structure 10 is in a partially light-transmitting state, that is, a voltage is applied to the first driving electrode 12 and the first strip-shaped electrode 131, and no voltage is applied to the second strip-shaped electrode 132, the liquid crystal layer 11 at the position corresponding to the first strip-shaped electrode 131 is in a light-transmitting state, and the liquid crystal layer 11 at the position corresponding to the second strip-shaped electrode 132 is in a light-tight state, so that the dimming structure is in a partially light-transmitting state; the user can see only the light emitted from the first stripe electrodes 131 and cannot see the light emitted from the second stripe electrodes 132, thereby forming a grating structure on the viewing side of the display unit 20, and the user can see the image displayed by the unit display 20 only from a partial angle, thereby implementing a peep-proof display of the display device.
In one embodiment, the display unit is L CD display unit, L ED display unit, O L ED display unit.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A dimming structure is characterized by comprising a first driving electrode, a second driving electrode and a liquid crystal layer, wherein the first driving electrode and the second driving electrode are oppositely arranged, the liquid crystal layer is arranged between the first driving electrode and the second driving electrode, the second driving electrode comprises a plurality of first strip-shaped electrodes and a plurality of second strip-shaped electrodes, the first strip-shaped electrodes and the second strip-shaped electrodes are arranged at intervals, and the first strip-shaped electrodes and the second strip-shaped electrodes are alternately arranged; the light adjusting structure further comprises a prism strip, and the prism strip is arranged corresponding to the second strip-shaped electrode.
2. The dimming structure of claim 1, wherein no voltage is applied to the first driving electrode or/and the second driving electrode to render the dimming structure opaque; or
Applying voltage to the first driving electrode and the first strip-shaped electrode and not applying voltage to the second strip-shaped electrode to enable the dimming structure to be in a partial light-transmitting state; or
Simultaneously applying voltage to the first driving electrode, the first strip-shaped electrode and the second strip-shaped electrode to enable the dimming structure to be in a light-transmitting state; or
And applying voltage to the first driving electrode and the second strip electrode at the same time, and not applying voltage to the first strip electrode, so that the dimming structure is in a light-transmitting state.
3. The structure of claim 1, further comprising a diverging film disposed on the first driving electrode, wherein the diverging film is provided with a plurality of parallel prism strips, and each prism strip corresponds to one of the second strip electrodes.
4. A light-adjusting structure as claimed in claim 3, wherein each of the prism strips includes a plurality of light-scattering strips arranged side by side, and each of the plurality of light-scattering strips corresponds to one of the second strip electrodes.
5. A dimming structure as claimed in claim 4, wherein the light dispersing strip has a diverging face disposed away from the first drive electrode.
6. The dimming structure of claim 5, wherein the cross-sectional shape of the light-diffusing strip in the width direction is provided in a regular triangle or a semicircle.
7. The light modulating structure of claim 6, wherein said light dispersing strip has a regular triangular cross-section and the angle at which said light dispersing strip faces said diverging surface is in the range of 30 degrees to 60 degrees.
8. The dimming structure of any one of claims 3 to 7, wherein a plurality of the prism bars are spaced apart, and a pitch between two adjacent prism bars is in a range of 3 micrometers to 80 micrometers.
9. The dimming structure of any one of claims 1 to 7, wherein the liquid crystal layer has a thickness in a range of 2 to 15 microns.
10. A display device, characterized in that it comprises a dimming structure as claimed in any one of claims 1 to 9 and a display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922486407.0U CN211014957U (en) | 2019-12-30 | 2019-12-30 | Dimming structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922486407.0U CN211014957U (en) | 2019-12-30 | 2019-12-30 | Dimming structure and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211014957U true CN211014957U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922486407.0U Active CN211014957U (en) | 2019-12-30 | 2019-12-30 | Dimming structure and display device |
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| Country | Link |
|---|---|
| CN (1) | CN211014957U (en) |
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2019
- 2019-12-30 CN CN201922486407.0U patent/CN211014957U/en active Active
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