CN211426986U - Display device - Google Patents
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- CN211426986U CN211426986U CN202020335584.9U CN202020335584U CN211426986U CN 211426986 U CN211426986 U CN 211426986U CN 202020335584 U CN202020335584 U CN 202020335584U CN 211426986 U CN211426986 U CN 211426986U
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Abstract
The embodiment of the utility model provides a relate to and show technical field, disclose a display device. It includes: the display device comprises a display panel and a dynamic grating positioned on the light emergent side of the display panel, wherein the height of the dynamic grating along the light emergent surface vertical to the display panel is variable. The embodiment of the utility model provides a technical scheme can be through the height of adjustment dynamic grating along the play plain noodles of perpendicular to display panel to realize the regulation to the visual angle of display device; the lower the height of the dynamic grating is, the larger the visual angle of the display device is, namely, the wide visual angle is realized; the higher the height of the dynamic grating is, the smaller the visual angle of the display device is, namely, the narrow visual angle is realized; therefore, the switching of different angles of the wide viewing angle and the narrow viewing angle of the display device can be satisfied.
Description
Technical Field
The embodiment of the utility model provides a relate to and show technical field, especially relate to a display device.
Background
Flat panel displays (or "liquid crystal displays") have the characteristics of high image quality, small size, light weight, low voltage driving, low power consumption, and wide application range, and thus, they are widely used in display devices such as mobile phones, computers, projection televisions, and vehicle-mounted displays, or other devices integrating display functions. With the development of flat panel display, performance indexes such as large area, high resolution, wide viewing angle, and high speed response are also called as key performance indexes for users to judge the performance of the lcd.
Although wide viewing angle is increasingly important to the functionality of flat panel displays, in some operating situations, the wide viewing angle functionality of flat panel displays does not compromise display privacy, and as a result, the display does not protect the privacy of the user. For example, a liquid crystal display with a wide viewing angle function can allow more users to view screen images at the same time, but cannot prevent people from peeping private image contents that are not disclosed. In response to this problem, a multi-view display is applied, the multi-view display area being presented as at least two different viewing zones, for example, a first viewing zone and a second viewing zone, in which different positions of the display can be viewed, for example, the first display zone and the second display zone can be viewed. Therefore, as long as the first display area and the second display area respectively display different images, two different images can be presented on the same display at the same time, and the display privacy can be improved. However, some multi-view displays can only view corresponding images at fixed viewing angle positions, and the viewing angle is not adjustable.
SUMMERY OF THE UTILITY MODEL
The utility model provides a display device, which realizes the adjustment of the visual angle of the display device by adjusting the height of a dynamic grating along a light-emitting surface vertical to a display panel; further, switching between different angles of the wide viewing angle and the narrow viewing angle of the display device can be achieved.
An embodiment of the utility model provides a display device, include: the display panel and be located the dynamic grating of display panel's light-emitting side, the dynamic grating is along the perpendicular to the height of display panel's light-emitting face is variable.
Optionally, the dynamic grating comprises a light directing structure comprising a plurality of light directing units aligned along a first direction extending along a second direction, the first direction intersecting the second direction to define a display plane; along the first direction, a preset distance is arranged between every two adjacent light orientation units;
each light orientation unit comprises at least two light orientation subunits which are sequentially stacked along a third direction, wherein the third direction is perpendicular to the display plane and is directed to the light orientation structure by the display panel; each of the light directing subunits includes an electrochromic film layer, and the electrochromic film layers in the light directing subunits are independently driven, respectively.
Optionally, the light directing subunit further includes a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are disposed on two opposite sides of the electrochromic film layer along the third direction;
when the at least two layers of the adjacently arranged light-directing subunits are driven in the third direction, applying electrochromic electric signals to only a first electrode layer closest to the display panel and a second electrode layer farthest from the display panel in the at least two layers of the adjacently arranged light-directing subunits.
Optionally, the display device further comprises a cover plate disposed on a side of the light-directing structure facing away from the display panel;
one side of the cover plate, which faces the light orientation structure, is provided with a first signal wire, and the first signal wire can transmit electrochromic electric signals to the light orientation structure.
Optionally, a second signal trace and a touch electrode structure are further disposed on one side of the cover plate facing the display panel;
the second signal routing can transmit a driving electric signal to the touch electrode structure and transmit a touch sensing electric signal fed back by the touch electrode structure.
Optionally, a third signal trace is disposed on the surface of the display panel close to the light-directing structure, and the third signal trace can transmit an electrochromic electrical signal to the light-directing structure.
Optionally, the display panel includes a first substrate and a second substrate disposed opposite to each other, the first substrate being disposed between the second substrate and the light-directing structure;
the third signal routing is arranged on the surface of one side, close to the optical orientation structure, of the first substrate.
Optionally, the second substrate is an array substrate, and the first substrate is a color film substrate;
the display panel further comprises a liquid crystal layer, and the liquid crystal layer is arranged between the first substrate and the second substrate.
Optionally, the display device further includes a backlight module, the backlight module is disposed on a side of the display panel away from the light-directing structure, and a light-emitting surface of the backlight module faces the display panel.
Optionally, the material of the electrochromic film layer includes a tungsten trioxide material, a polyaniline material, or an ultraviolet essence compound material.
The embodiment of the utility model provides a display device includes display panel and sets up the dynamic grating in the light-emitting side of display panel, through setting up the height-adjustable of dynamic grating along the play plain noodles that is perpendicular to display panel, can realize through the height of the play plain noodles that adjusts dynamic grating along the perpendicular to display panel, can realize the regulation to the visual angle of display device; the lower the height of the dynamic grating is, the larger the visual angle of the display device is, namely, the wide visual angle is realized; the higher the height of the dynamic grating is, the smaller the visual angle of the display device is, namely, the narrow visual angle is realized; therefore, the switching of different angles of the wide viewing angle and the narrow viewing angle of the display device can be satisfied.
Drawings
Fig. 1 is a schematic structural diagram of a first display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a dynamic grating structure in the display device of the example of FIG. 1;
fig. 3 is a schematic diagram of a display device according to an embodiment of the present invention, in which an electrochromic film layer is in a non-energized state;
fig. 4 is a schematic diagram of a display device according to an embodiment of the present invention, in which an electrochromic film layer is in an energized state;
fig. 5 is a schematic view illustrating a first view angle width of a display device according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating a second viewing angle width of a display device according to an embodiment of the present invention;
fig. 7 is a schematic view illustrating a third viewing angle width of a display device according to an embodiment of the present invention;
fig. 8 is a schematic state diagram of a fourth viewing angle width of the display device according to the embodiment of the present invention;
fig. 9 is a schematic structural diagram of a second display device according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a third display device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a fourth display device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a fifth display device according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a sixth display device according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a seventh display device according to an embodiment of the present invention.
Wherein, the embodiment of the utility model provides an in, the reference numeral and the characteristic name that corresponds:
1-display device, 11-display panel, 111-third signal wiring, 112-first substrate, 113-second substrate, 114-liquid crystal layer, 12-dynamic grating, 121-light orientation structure, 21-light orientation unit, 211-light orientation subunit, 2111-electrochromic film layer, 2112-first electrode layer, 2113-second electrode layer, 13-cover plate, 131-first signal wiring, 132-second signal wiring, 133-touch electrode structure, and 14-backlight module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment of the utility model provides a display device, including display panel and the dynamic grating that sets up in the light-emitting side of display panel, through setting up the height-adjustable of dynamic grating along the light-emitting surface that is perpendicular to display panel, can realize through the height of adjusting the dynamic grating along the light-emitting surface that is perpendicular to display panel, can realize the regulation to the visual angle of display device; the lower the height of the dynamic grating is, the larger the visual angle of the display device is, namely, the wide visual angle is realized; the higher the height of the dynamic grating is, the smaller the visual angle of the display device is, namely, the narrow visual angle is realized; therefore, the switching of different angles of the wide viewing angle and the narrow viewing angle of the display device can be satisfied.
The following describes an exemplary display device according to an embodiment of the present invention with reference to fig. 1 to 14.
Fig. 1 is a schematic structural diagram of a first display device according to an embodiment of the present invention. Referring to fig. 1, the display device 1 includes a display panel 11 and a dynamic grating 12 located on a light-emitting side of the display panel 11, wherein a height H of the dynamic grating 12 along a direction perpendicular to the light-emitting side of the display panel 11 is variable.
After the light emitted from the display panel 11 is adjusted by the dynamic grating 12, the display device 1 presents a picture (or "image") that can be observed by a user.
Illustratively, the light-emitting surface of the display panel 11 is a plane parallel to the first direction X and the second direction Y, and the direction perpendicular to the light-emitting surface of the display panel 11 is the height H of the dynamic grating 12 in the third direction Z, i.e. the height of the dynamic grating 12 along the third direction Z.
The dynamic grating 12 includes a plurality of light-transmitting regions and light-shielding regions which extend along the second direction Y and are sequentially arranged at intervals along the first direction X; wherein, the light shielding region can be provided with a light shielding structure, and the height H of the dynamic grating 12 can be understood as the height of the light shielding structure. The higher the height of the light shielding structure is, the smaller the exit angle of the light emitted by the display panel 11 after passing through the light shielding structure is; the lower the height of the light shielding structure is, the larger the exit angle of the light emitted from the display panel 11 after passing through the light shielding structure is. Based on this, by changing the height of the dynamic grating 12, the emitting angle of the light emitted from the display panel 11 and passing through the dynamic grating 12 can be adjusted, and the smaller the emitting angle of the light is, the smaller the observable viewing angle is; the larger the exit angle of the light, the larger the observable viewing angle. Thus, by adjusting the height of the dynamic grating 12, adjustment of the viewing angle of the display device 1 can be achieved; that is, the lower the height of the dynamic grating 12, the larger the viewing angle of the display device 1, i.e., a wide viewing angle is achieved; the higher the height of the dynamic grating 12 is, the smaller the visual angle of the display device 1 is, i.e. a narrow viewing angle is realized; thereby, switching of different angles of the wide viewing angle and the narrow viewing angle of the display device 1 can be satisfied.
It should be noted that fig. 1 only exemplarily shows that the light emitted from the display panel 11 is emitted from the display device 1 along the third direction Z, but does not constitute a limitation on the light emitting direction of the display device 1 provided by the embodiment of the present invention. In the practical use of the display device 1, on the side of the dynamic grating 12 facing away from the display panel 11, the boundary between the light-transmitting area and the light-shielding area in the dynamic grating 12 and the height of the light-shielding structure determine the exit direction of the light emitted from the display device 1, which is exemplarily described below with reference to fig. 5 to 8.
Alternatively, fig. 2 is a schematic diagram of a structure of a dynamic grating in the display device illustrated in fig. 1. On the basis of the above technical solution, referring to fig. 2, the dynamic grating 12 includes a light directing structure 121, the light directing structure 121 includes a plurality of light directing units 21 arranged along a first direction X and extending along a second direction Y, the first direction X intersects the second direction Y to define a display plane SP 1; along the first direction X, two adjacent light direction units 21 are spaced by a preset distance X0; each light directing unit 21 comprises at least two light directing subunits 211 arranged one above the other in a third direction Z perpendicular to the display plane SP1 and directed by the display panel 11 towards the light directing structure 121; each of the light directing subunits 211 includes an electrochromic film layer 2111, and the electrochromic film layers 2111 in each of the light directing subunits 211 are independently driven, respectively.
With reference to fig. 1 and fig. 2, the light-directing structure 121 forms a light-shielding structure of the dynamic grating 12, and the overall height of the light-directing structure 121 determines the height of the dynamic grating 12; the interval between two adjacent light directing units 21 corresponds to the light-transmitting area, and the vertical projection profile of each light directing unit 21 in the light directing structure 121 in the display plane SP1 is the boundary between the light-transmitting area and the light-shielding area of the dynamic grating 12. The display plane SP1 is parallel to the light emitting surface of the display panel 11 and parallel to the light emitting surface of the display device 1.
It should be noted that, along the first direction X, the width of the light directing unit 21 and the specific value of the preset distance X0 between two adjacent light directing units 21 can be set according to the actual requirements of the dynamic grating 12 and the display device 1, and the two values can be equal to or different from each other, which is not limited by the embodiment of the present invention.
Among them, electrochromism is a phenomenon in which optical properties (reflectivity, transmittance, absorption, etc.) of a material undergo a stable and reversible color change under the action of an external electric field.
For example, fig. 3 is a schematic diagram of a display device provided in an embodiment of the present invention, in which an electrochromic film layer is in a non-energized state. Referring to FIG. 3, the electrochromic film layer 2111 in the photo-directing subcell 211 is transparent when not energized.
For example, fig. 4 is a schematic diagram of an electrochromic film layer in a power-on state in a display device provided by an embodiment of the present invention. Referring to fig. 4, the electrochromic film 2111 in the photo-directing subunit 211 is electrically changed to be opaque, that is, when it is driven, it can block light to form a grating structure.
The electrochromic film layer 2111 is driven, which is also understood to mean that the light directing subunit 211 in which it is located is driven. Based on this, by controlling the number of layers of the driven light directing sub-units 211, the height of the light directing unit 21 in the third direction can be adjusted.
Illustratively, along the third direction Z, the three layers of light directing subunits 211 shown in fig. 2 are a bottom layer light directing subunit, a middle layer light directing subunit, and a top layer light directing subunit, respectively. The following describes exemplary height variation of the light shielding structure and the size relationship of the viewing angle when driving the light directing subunits with different number of layers, with reference to fig. 5-8.
For example, fig. 5 is a schematic state diagram of a first viewing angle width of a display device according to an embodiment of the present invention. Referring to fig. 5, when each layer of the light directing sub-units is not driven, a light blocking structure is not formed in the dynamic grating 12, so that light may be diverged toward each angle of the light emitting side within a plane defined by the first direction X and the third direction Z.
For example, fig. 6 is a schematic state diagram of a second viewing angle width of the display device according to the embodiment of the present invention. Referring to fig. 6, when only the bottom light directing sub-unit is driven, the thickness of the light shielding structure is the thickness of one light directing sub-unit, the height is shown as H1, and the exit angle of the exiting light is defined by the side of the light shielding structure away from the display panel, and the angle of the field of view becomes smaller relative to that in fig. 5.
For example, fig. 7 is a schematic state diagram of a third viewing angle width of the display device according to the embodiment of the present invention. Referring to fig. 7, when the bottom layer light directing subunit and the middle layer light directing subunit are driven simultaneously, the thickness of the light shielding structure is the sum of the thicknesses of the two light directing subunits, the height is shown as H2, and when the exit angle of the exiting light is defined by the side of the light shielding structure away from the display panel, the angle of the field of view becomes smaller relative to that in fig. 6.
For example, fig. 8 is a schematic state diagram of a fourth viewing angle width of the display device according to the embodiment of the present invention. Referring to fig. 8, when three layers of light directing subunits are driven simultaneously, the thickness of the light shielding structure is the sum of the thicknesses of the three light directing structures, the height is shown as H3, and when the exit angle of the exiting light is defined by the side of the light shielding structure away from the display panel, the viewing angle becomes smaller relative to that in fig. 7.
In this way, by driving the photo-alignment subunits with different numbers of layers, the height of the light shielding structure, that is, the thicknesses of the photo-alignment structure 121 and the dynamic grating 12, can be adjusted, so as to adjust the viewing angle of the display device 1.
It should be noted that fig. 2, 5-8 only exemplarily show that the number of layers of the light directing subunits 211 sequentially stacked along the third direction Z in the light directing unit 21 is three, but do not constitute a limitation on the display device 1 provided by the embodiment of the present invention. In other embodiments, the number of layers of the light directing subunit 211 can also be set according to the actual requirement of the display device 1, which is not limited by the embodiment of the present invention.
Optionally, fig. 9 is a schematic structural diagram of a second display device provided in an embodiment of the present invention. On the basis of the above technical solution, referring to fig. 9, the light directing subunit 211 further includes a first electrode layer 2112 and a second electrode layer 2113, and the first electrode layer 2112 and the second electrode layer 2113 are disposed on two opposite sides of the electrochromic film layer 2111 along the third direction Z; when at least two adjacently disposed light directing sub-units 211 are driven in the third direction Z, electrochromic electrical signals are applied only to the first electrode layer 2112 closest to the display panel 11 and the second electrode layer 2113 farthest from the display panel 11 of the at least two adjacently disposed light directing sub-units 211.
When the photoalignment subunit 211 works, a certain voltage difference is formed between the first electrode layer 2112 and the second electrode layer 2113, and the material in the electrochromic film layer 2111 undergoes an optical property change under the effect of the voltage difference.
For example, the first electrode layer 2112 and the second electrode layer 2113 are both transparent electrode layers, so that a higher light transmittance can be achieved, and light loss when light emitted from the display panel 11 passes through the dynamic grating 12 is reduced, thereby being beneficial to ensuring that the display device 1 has higher display brightness, and further being beneficial to ensuring the display effect of the display device 1.
When the number of layers of the driven light directing subunit 211 is greater than or equal to two, the electrical signal can be provided only to the electrode layer (including the first electrode layer 2112 and the second electrode layer 2113) located outside the photochromic film layer 2111, and the electrical signal does not need to be provided to the electrode layer located in the middle of the adjacent photochromic film layer 2111, so that on one hand, the driving mode of the light directing unit 21 can be simple, on the other hand, the number of traces carrying the electrical signal can be reduced, and the reduction of signal interference inside the display device is facilitated.
Illustratively, in connection with the explanation of fig. 2, when all three layers of light directing subunits 211 in fig. 9 are driven, electrical signals may be provided only to the first electrode layer 2112 of the bottom layer light directing subunit 211 and the second electrode layer 2113 of the top layer light directing subunit 211, without providing electrical signals to the other electrode layers in the middle. In other embodiments, based on this concept, it is also possible to provide the photo-alignment subunit 211 that only uses two electrode layers to drive each of the different layers, which is not limited by the embodiments of the present invention.
Optionally, fig. 10 is a schematic structural diagram of a third display device according to an embodiment of the present invention. On the basis of the above technical solution, referring to fig. 10, the display device 1 further includes a cover plate 13, where the cover plate 13 is disposed on a side of the light directing structure 121 away from the display panel 11; the cover plate 13 is provided with a first signal trace 131 on a side facing the light-directing structure 121 (dynamic grating 12), and the first signal trace 131 can transmit an electrochromic electrical signal to the light-directing structure 121.
The cover plate 13 may be a hard dense cover plate, such as a glass cover plate. The cover 13 can protect the display panel 11 and the dynamic grating 12, thereby being beneficial to prolonging the service life of the display device 1.
Meanwhile, the first signal routing wires 131 are arranged on one side of the cover plate 13 close to the light-directing structure 121, so that electric signals can be transmitted to the light-directing structure 121 through the first signal routing wires 131, and the routing mode is simple.
It should be noted that fig. 10 exemplarily shows that in the light directing structure 121, each light directing unit is in one-to-one corresponding contact with the first signal trace 131; in other embodiments, the electrode layers may be all of a whole layer structure, and each layer of electrode is electrically connected to one first signal trace 131; or other electrical connection methods known to those skilled in the art may be further adopted to realize the electrical connection between the first signal trace 131 and the light directing structure 121, which is not limited by the embodiment of the present invention.
Optionally, fig. 11 is a schematic structural diagram of a fourth display device provided in the embodiment of the present invention. On the basis of the above technical solution, referring to fig. 11, a second signal trace 132 and a touch electrode structure 133 are further disposed on one side of the cover plate 13 facing the display panel 11; the second signal trace 132 can transmit a driving electrical signal to the touch electrode structure 133 and transmit a touch sensing electrical signal fed back by the touch electrode structure 133.
Thus, the cover 13 has a touch function, and the cover 13 may also be referred to as a touch screen or a touch screen. The first signal wiring 131 is additionally arranged in the touch screen and serves as a signal transmission line of the optical orientation structure 121, so that an additional substrate is not required, the structure of the display device 1 is simplified, the thickness of the display device 1 is reduced, and the thin design of the display device 1 is realized.
It should be noted that, in fig. 11, in order to distinguish the first signal trace 131 from the second signal trace 132, the two are exemplarily shown in two separate structures. In the actual product structure of the display device 1, the first signal trace 131 may also be disposed on the same layer as the second signal trace 132, or the first signal trace 131 may also be disposed on the same layer as the touch electrode structure 133, which is not limited by the embodiment of the present invention. In addition, the actual product structure of the touch screen may be any structure known to those skilled in the art, such as a self-contained touch screen or a mutual-contained touch screen, which is not limited by the embodiments of the present invention.
Similar to the panel structure shown in fig. 10 and 11, the signal transmission line of the light directing structure 131 may also be disposed on the display panel 11 side, as will be described below with reference to fig. 12 to 14.
Optionally, fig. 12 is a schematic structural diagram of a fifth display device according to an embodiment of the present invention. Referring to fig. 12, the display panel 11 is provided with a third signal trace 111 near the surface of the light-directing structure 121, and the third signal trace 111 can transmit an electrochromic electrical signal to the light-directing structure 121.
With such an arrangement, it is not necessary to additionally increase the substrate, which is beneficial to simplifying the structure of the display device 1, reducing the thickness of the display device 1, and realizing the thin design of the display device 1.
Optionally, fig. 13 is a schematic structural diagram of a sixth display device according to an embodiment of the present invention. Referring to fig. 13, the display panel 11 includes a first substrate 112 and a second substrate 113 oppositely disposed, the first substrate 112 being disposed between the second substrate 113 and the light-directing structure 121; the third signal trace 111 is disposed on a side surface of the first substrate 112 close to the light-directing structure 121.
By arranging the third signal trace 111 on the surface of the first substrate 112 facing the light-directing structure 121, the first substrate 112 can be used as a substrate for the third signal trace 111, so that an additional substrate is not required, and the display device 1 can be thinned.
For example, when the display panel 11 is an organic light emitting diode display panel, the second substrate 113 may be an array substrate, and the first substrate 112 may be a package substrate. When the display panel 11 is a liquid crystal display panel, the second substrate 113 may be an array substrate, and the first substrate 112 may be a color film substrate.
On the basis of the above technical solution, optionally, with reference to fig. 13, when the second substrate 113 is an array substrate and the first substrate 112 is a color filter substrate; the display panel 11 further includes a liquid crystal layer 114, and the liquid crystal layer 114 is disposed between the first substrate 112 and the second substrate 113.
Liquid crystal molecules in the liquid crystal layer 114 are deflected between the first substrate 112 and the second substrate 113 to realize modulation of light, so that the display panel 11 can present a picture.
Optionally, fig. 14 is a schematic structural diagram of a seventh display device according to an embodiment of the present invention. On the basis of the above technical solution, referring to fig. 14, the display device 1 further includes a backlight module 14, the backlight module 14 is disposed on a side of the display panel 11 away from the light-directing structure 121, and a light-emitting surface of the backlight module 14 faces the display panel 11.
The light emitted from the backlight module 14 is modulated by the display panel 11 and then emitted, so that the display panel 11 can present a picture. Then, the light emitted from the display panel 11 is modulated by the dynamic grating 12, so that the adjustment of different wide and narrow viewing angles can be realized.
On the basis of the above technical solution, optionally, with reference to fig. 9, the material of the electrochromic film layer 2111 includes a tungsten trioxide material, a polyaniline material, or an ultraviolet compound material.
The three electrochromic materials have good electrochromic performance, mature preparation process and low research and development cost, so that the cost of the display device 1 is reduced.
In other embodiments, other materials known to those skilled in the art may also be used as the material of the electrochromic film layer 2111, which is not described or limited by the embodiments of the present invention.
The embodiment of the utility model provides a display device, through the height of adjusting dynamic grating 12, can realize the regulation to the visual angle of display device 1; that is, the lower the height of the dynamic grating 12, the larger the viewing angle of the display device 1, i.e., a wide viewing angle is achieved; the higher the height of the dynamic grating 12 is, the smaller the visual angle of the display device 1 is, i.e. a narrow viewing angle is realized; thereby, switching of different angles of the wide viewing angle and the narrow viewing angle of the display device 1 can be satisfied.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A display device comprises a display panel and a dynamic grating positioned on the light-emitting side of the display panel; the dynamic grating is characterized in that the height of the dynamic grating along the light emergent surface vertical to the display panel is variable.
2. The display device of claim 1, wherein the dynamic grating comprises a light directing structure comprising a plurality of light directing units aligned along a first direction extending along a second direction, the first direction intersecting the second direction to define a display plane; along the first direction, a preset distance is arranged between every two adjacent light orientation units;
each light orientation unit comprises at least two light orientation subunits which are sequentially stacked along a third direction, wherein the third direction is perpendicular to the display plane and is directed to the light orientation structure by the display panel; each of the light directing subunits includes an electrochromic film layer, and the electrochromic film layers in the light directing subunits are independently driven, respectively.
3. The display device according to claim 2, wherein the light directing subunit further comprises a first electrode layer and a second electrode layer disposed on opposite sides of the electrochromic film layer along the third direction;
when the at least two layers of the adjacently arranged light-directing subunits are driven in the third direction, applying electrochromic electric signals to only a first electrode layer closest to the display panel and a second electrode layer farthest from the display panel in the at least two layers of the adjacently arranged light-directing subunits.
4. The display device according to claim 2, further comprising a cover plate disposed on a side of the light directing structure facing away from the display panel;
one side of the cover plate, which faces the light orientation structure, is provided with a first signal wire, and the first signal wire can transmit electrochromic electric signals to the light orientation structure.
5. The display device according to claim 4, wherein a second signal trace and a touch electrode structure are further disposed on a side of the cover plate facing the display panel;
the second signal routing can transmit a driving electric signal to the touch electrode structure and transmit a touch sensing electric signal fed back by the touch electrode structure.
6. The display device according to claim 2, wherein the display panel is provided with a third signal trace near the surface of the light-directing structure, and the third signal trace is capable of transmitting an electrochromic electrical signal to the light-directing structure.
7. The display device of claim 6, wherein the display panel comprises a first substrate and a second substrate disposed opposite each other, the first substrate being disposed between the second substrate and the light directing structure;
the third signal routing is arranged on the surface of one side, close to the optical orientation structure, of the first substrate.
8. The display device according to claim 7, wherein the second substrate is an array substrate, and the first substrate is a color filter substrate;
the display panel further comprises a liquid crystal layer, and the liquid crystal layer is arranged between the first substrate and the second substrate.
9. The display device according to claim 8, further comprising a backlight module disposed on a side of the display panel facing away from the light-directing structure, wherein a light-emitting surface of the backlight module faces the display panel.
10. The display device according to claim 2, wherein a material of the electrochromic film layer comprises a tungsten trioxide material, a polyaniline material, or an ultraviolet-based compound material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189802A (en) * | 2021-04-27 | 2021-07-30 | 京东方科技集团股份有限公司 | Display module, display method thereof and display device |
| CN113325632A (en) * | 2021-08-04 | 2021-08-31 | 惠科股份有限公司 | Backlight module and liquid crystal display device |
| CN113671766A (en) * | 2021-08-26 | 2021-11-19 | 上海天马微电子有限公司 | Optical film and display device |
-
2020
- 2020-03-17 CN CN202020335584.9U patent/CN211426986U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189802A (en) * | 2021-04-27 | 2021-07-30 | 京东方科技集团股份有限公司 | Display module, display method thereof and display device |
| CN113325632A (en) * | 2021-08-04 | 2021-08-31 | 惠科股份有限公司 | Backlight module and liquid crystal display device |
| CN113671766A (en) * | 2021-08-26 | 2021-11-19 | 上海天马微电子有限公司 | Optical film and display device |
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