CN212723606U - Double-sided liquid crystal display panel and display device - Google Patents
Double-sided liquid crystal display panel and display device Download PDFInfo
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- CN212723606U CN212723606U CN202021830692.XU CN202021830692U CN212723606U CN 212723606 U CN212723606 U CN 212723606U CN 202021830692 U CN202021830692 U CN 202021830692U CN 212723606 U CN212723606 U CN 212723606U
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- 210000002858 crystal cell Anatomy 0.000 claims description 29
- 239000000758 substrate Substances 0.000 claims description 16
- 238000009792 diffusion process Methods 0.000 claims description 12
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses two-sided liquid crystal display panel, display device. The double-sided liquid crystal display panel includes: the backlight module emits light on two sides; the first reflection type polaroid is positioned on one side of the backlight module and can transmit first linearly polarized light and reflect second linearly polarized light; wherein the angles of the first linearly polarized light and the second linearly polarized light are different; the first liquid crystal box is positioned on one side of the first reflection type polaroid, which is far away from the backlight module; the second reflection type polarizer is positioned on the other side of the backlight module and can transmit the second linearly polarized light and reflect the first linearly polarized light; and the second liquid crystal box is positioned on one side of the second reflection-type polaroid, which is far away from the backlight module. Compared with the prior art, the embodiment of the utility model provides a be favorable to reduce cost, reduce the space that occupies and reduce the energy consumption.
Description
Technical Field
The embodiment of the utility model provides a relate to and show technical field, especially relate to a two-sided liquid crystal display panel, display device.
Background
With the continuous development of display technologies, the application range of display panels and display devices is wider and wider, and the requirements of users and manufacturers on display panels and display devices are higher and higher. Among them, the double-sided display is an important application field of the display panel, for example, in places such as a train, a waiting hall, or a display hall.
In the prior art, in order to realize double-sided display, a scheme that two separate display devices are arranged back to back is adopted, or a scheme that two separate display panels are arranged back to back in the same display device is adopted. That is, the scheme of separately arranging two display panels to realize double-sided display in the prior art has the problems of high cost, large occupied space and high energy consumption.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a two-sided liquid crystal display panel, display device to reduce cost, reduce the space that occupies and reduce the energy consumption.
In a first aspect, an embodiment of the present invention provides a double-sided liquid crystal display panel, which includes:
the backlight module emits light on two sides;
the first reflection type polaroid is positioned on one side of the backlight module and can transmit first linearly polarized light and reflect second linearly polarized light; wherein the angles of the first linearly polarized light and the second linearly polarized light are different;
the first liquid crystal box is positioned on one side of the first reflection type polaroid, which is far away from the backlight module;
the second reflection type polarizer is positioned on the other side of the backlight module and can transmit the second linearly polarized light and reflect the first linearly polarized light;
and the second liquid crystal box is positioned on one side of the second reflection-type polaroid, which is far away from the backlight module.
Optionally, the backlight module is a side-in type backlight module; the backlight module comprises a light source and a light guide plate, wherein the light source is positioned at one end of the light guide plate.
Optionally, the light guide plate includes a first light emitting surface and a second light emitting surface;
the light guide plate further comprises a plurality of mesh points, wherein part of the mesh points are arranged on the first light-emitting surface of the light guide plate, and part of the mesh points are arranged on the second light-emitting surface of the light guide plate.
Optionally, the farther away from the light source, the greater the density of the dots; and the farther away from the light source, the larger the size of the dots.
Optionally, the backlight module further includes: the light guide plate comprises a first diffusion sheet and a second diffusion sheet, wherein the first diffusion sheet and the second diffusion sheet are respectively positioned on two sides of the light guide plate.
Optionally, the first reflective polarizer is capable of transmitting horizontally linearly polarized light and reflecting vertically linearly polarized light;
the second reflection type polarizer can transmit the vertical linearly polarized light and reflect the horizontal linearly polarized light.
Optionally, the double-sided liquid crystal display panel further includes:
the first polaroid is positioned on one side of the first liquid crystal box far away from the backlight module; the first polarizer can transmit vertical linearly polarized light;
the second polaroid is located on one side, away from the backlight module, of the second liquid crystal box, and the second polaroid can transmit horizontal linear polarized light.
Optionally, the first liquid crystal cell comprises: the liquid crystal display panel comprises a first array substrate, a first liquid crystal layer and a first color film substrate which are arranged in a stacked mode;
the second liquid crystal cell includes: and the second array substrate, the second liquid crystal layer and the second color film substrate are arranged in a stacked manner.
In a second aspect, the embodiments of the present invention further provide a double-sided liquid crystal display device, which includes: the utility model discloses arbitrary embodiment two-sided liquid crystal display panel.
Optionally, the double-sided liquid crystal display device further includes:
a first flexible circuit board including a first end and a second end, the first end of the first flexible circuit board being connected to the first liquid crystal cell;
the second flexible circuit board comprises a first end and a second end, and the first end of the second flexible circuit board is connected with the second liquid crystal box;
the driving chip is connected with the second end of the first flexible circuit board, and the driving chip is connected with the second end of the second flexible circuit board; the driving chip provides a driving signal to the first liquid crystal box through the first flexible circuit board, and provides a driving signal to the second liquid crystal box through the second flexible circuit board.
The embodiment of the utility model provides a through setting up first single face display panel and the sharing backlight unit of second single face display panel, first reflection-type polaroid can see through first linearly polarized light, reflects second linearly polarized light; the second reflection type polarizer can transmit second linearly polarized light and reflect first linearly polarized light; and the angles of the first linearly polarized light and the second linearly polarized light are different.
The embodiment of the utility model provides a can realize following beneficial effect at least:
the first single-sided display panel and the second single-sided display panel share one set of backlight module, and compared with the prior art, the cost of one set of backlight module is saved, so that the cost of the double-sided liquid crystal display panel is reduced; the first single-sided display panel and the second single-sided display panel share one set of backlight module, compared with the prior art, the space occupied by one set of backlight module is saved, so that the space occupied by the double-sided liquid crystal display panel is reduced, and ultra-thinning is facilitated; first single face display panel can utilize the light that second single face display panel reflects back, and second single face display panel can utilize the light that first single face display panel reflects back, however, current single face liquid crystal display panel can't utilize the light that reflection-type polaroid reflects back, consequently, compares with current single face liquid crystal display panel, the embodiment of the utility model provides a utilization ratio of backlight unit has been promoted, is favorable to reducing double-sided liquid crystal display panel's consumption.
Drawings
Fig. 1 is a schematic structural diagram of a double-sided liquid crystal display panel according to an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a schematic diagram of the luminance of the display panel of the comparative sample according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a backlight module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another backlight module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another double-sided liquid crystal display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a double-sided liquid crystal display device according to an embodiment of the present invention.
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 double-sided liquid crystal display panel, fig. 1 is the utility model provides a double-sided liquid crystal display panel's that provides structural schematic diagram, fig. 2 is the explosion chart of fig. 1, refers to fig. 1 and fig. 2, and this double-sided liquid crystal display panel includes: the backlight module comprises a backlight module 10, a first reflection type polarizer 20, a first liquid crystal box 30, a second reflection type polarizer 40 and a second liquid crystal box 50. Wherein, the backlight module 10 emits light on both sides; the first reflection type polarizer 20 is located at one side of the backlight module 10, and the first reflection type polarizer 20 can transmit the first linearly polarized light and reflect the second linearly polarized light; the first linearly polarized light and the second linearly polarized light have different angles. The first liquid crystal cell 30 is located on a side of the first reflective polarizer 20 away from the backlight module 10. The second reflective polarizer 40 is located at the other side of the backlight module 10, and the second reflective polarizer 40 can transmit the second linearly polarized light and reflect the first linearly polarized light. The second liquid crystal cell 50 is located on a side of the second reflective polarizer 40 away from the backlight module 10.
The backlight module 10, the first reflective polarizer 20 and the first liquid crystal cell 30 form a first single-sided display panel, the backlight module 10, the second reflective polarizer 40 and the second liquid crystal cell 50 form a second single-sided display panel, and the first single-sided display panel and the second single-sided display panel share the backlight module 10. Compared with the prior art, the cost of one set of backlight module 10 is saved, so that the cost of the double-sided liquid crystal display panel is reduced; and, the space occupied by a set of backlight module 10 is saved, thereby reducing the space occupied by the double-sided liquid crystal display panel and being beneficial to ultra-thinning.
Furthermore, the embodiment of the present invention provides the first reflection type polarizer 20 and the second reflection type polarizer 40, which can transmit the linearly polarized light in a certain direction and reflect the polarized light in other directions. The first reflective polarizer 20 is capable of transmitting linearly polarized light reflected by the second reflective polarizer 40, and the second reflective polarizer 40 is capable of transmitting light reflected by the first reflective polarizer 20, so that light emitted from the backlight module 10 can be fully utilized. Illustratively, the first linearly polarized light is horizontally linearly polarized light, and the second linearly polarized light is vertically linearly polarized light, then the first reflective polarizer 20 is capable of transmitting horizontally linearly polarized light and reflecting vertically linearly polarized light; the second reflective polarizer 40 is capable of transmitting vertically linearly polarized light and reflecting horizontally linearly polarized light. Specifically, transmission axes are provided in both the first reflection type polarizer 20 and the second reflection type polarizer 40, the transmission axis of the first reflection type polarizer 20 is a horizontal direction, and the transmission axis of the second reflection type polarizer 40 is a vertical direction.
The principle of the present invention for realizing double-sided light emission of the double-sided liquid crystal display panel is explained with reference to fig. 2, in fig. 2, the solid line represents the light emitted from the backlight module 10, the dotted line represents the light reflected by the second reflective polarizer 40, and the dot-dash line represents the light reflected by the first reflective polarizer 20.
Illustratively, the principle of the double-sided liquid crystal display panel for realizing double-sided light emission is as follows: the light emitted from the backlight module 10 is non-polarized natural light, and when the natural light passes through the first reflective polarizer 20, the light passing through the first reflective polarizer is horizontal linear polarized light, and the horizontal linear polarized light is incident into the first liquid crystal cell 30, and the first liquid crystal cell 30 controls the display frame of the first single-sided display panel. The light reflected back by the first reflective polarizer 20 is vertically linearly polarized light, and the light intensity of the horizontally polarized light and the vertically linearly polarized light is half of the natural light. Similarly, when the natural light passes through the second reflective polarizer 40, the transmitted light is vertical linear polarized light in the natural light directly emitted from the backlight module 10 and vertical linear polarized light reflected by the first reflective polarizer 20, the vertical linear polarized light enters the second liquid crystal cell 50, and the second liquid crystal cell 50 controls the display of the second single-sided display panel. The second reflective polarizer 40 reflects back horizontally linearly polarized light in natural light. It is understood that the horizontally linearly polarized light reflected by the second reflective polarizer 40 may be transmitted through the first reflective polarizer 20 to enhance the brightness of the first single-sided display panel. Therefore, the first single-sided display panel and the second single-sided display panel are not interfered with each other and can display normally.
To sum up, the embodiment of the present invention provides the backlight module 10 shared by the first single-sided display panel and the second single-sided display panel, and the first reflective polarizer 20 can transmit the first linearly polarized light and reflect the second linearly polarized light; the second reflective polarizer 40 is capable of transmitting the second linearly polarized light and reflecting the first linearly polarized light; and the angles of the first linearly polarized light and the second linearly polarized light are different. In this way, the first single-sided display panel can utilize the light reflected back by the second single-sided display panel, and the second single-sided display panel can utilize the light reflected back by the first single-sided display panel. However, the light that current single face display panel can't utilize the reflection-type polaroid to reflect back, consequently, compare with current single face liquid crystal display panel, the embodiment of the utility model provides a promoted backlight unit 10's utilization ratio, be favorable to reducing double-sided liquid crystal display panel's consumption.
In order to verify the utility model discloses the power consumption utilization ratio of embodiment, the embodiment of the utility model provides a contrast sample. Fig. 3 is a schematic diagram of the luminance of the display panel of the comparative sample, referring to fig. 3, the display panel of the comparative design includes a double-sided liquid crystal display panel area 100 and a single-sided liquid crystal display panel area 200, and the double-sided liquid crystal display panel area 100 and the single-sided liquid crystal display panel area 200 utilize the same backlight module 10. In the double-sided liquid crystal display panel area 100, a first liquid crystal cell 30 and a second liquid crystal cell 50 are respectively arranged on two sides of the backlight module 10; in the single-sided liquid crystal display panel region 200, one liquid crystal cell is disposed only on one side of the backlight module 10. It can be seen that the luminance of the regional 100 of two-sided liquid crystal display panel is higher, and the luminance of the regional 200 of single face liquid crystal display panel is lower, the embodiment of the utility model provides a be favorable to reducing two-sided liquid crystal display panel's consumption.
To sum up, the embodiment of the utility model provides a realize that two-sided demonstration, the space that occupies is less and the lower basis of energy consumption on, promoted backlight unit 10 the utilization ratio, reduced the consumption.
With continued reference to fig. 1 and fig. 2, on the basis of the foregoing embodiments, optionally, the double-sided liquid crystal display panel further includes: a first polarizing plate 60 and a second polarizing plate 70. The first polarizer 60 is located on a side of the first liquid crystal cell 30 away from the backlight module 10; the first polarizer 60 is capable of transmitting vertically linearly polarized light. The second polarizer 70 is located on a side of the second liquid crystal cell 50 away from the backlight module 10, and the second polarizer 70 is capable of transmitting horizontally linearly polarized light.
The first polarizer 60 and the second polarizer 70 may be polarizers having a reflection function, or may be ordinary polarizers, which is not limited in the present invention. The first polarizer 60 is matched to the first reflective polarizer 20, and the angle of the transmission axis of the first polarizer 60 differs by 90 ° from the transmission axis of the first reflective polarizer 20. This is because the horizontal linear polarized light passing through the first reflective polarizer 20 is changed into vertical linear polarized light after passing through the first liquid crystal cell 30, so the first polarizer 60 is set to be able to pass through the vertical linear polarized light, and the light emitted from the first liquid crystal cell 30 can be completely transmitted, thereby improving the light transmittance. Thus, the backlight module 10, the first reflective polarizer 20, the first liquid crystal cell 30 and the first polarizer 60 form a first single-sided display panel, thereby realizing a single-sided display function. Similarly, the backlight module 10, the second reflective polarizer 40, the second liquid crystal cell 50, and the second polarizer 70 form a second single-sided display panel, thereby implementing a single-sided display function.
In the above embodiments, the backlight module 10 may be disposed in various ways, and the side-type backlight module 10 may be adopted, or the direct-type backlight module 10 may also be adopted. The following describes the installation of the backlight module 10, but the present invention is not limited thereto.
Fig. 4 is a schematic structural diagram of a backlight module according to an embodiment of the present invention, referring to fig. 4, in an embodiment, optionally, the backlight module 10 is a side-in type backlight module; the backlight module 10 includes a light source 11 and a light guide plate 12, and the light source 11 is disposed at one end of the light guide plate 12. The light source 11 may be, for example, an LED light bar. Because the light source (for example LED lamp strip) among the straight following formula backlight unit 10 is mostly the single face light-emitting, consequently the embodiment of the utility model provides an adopt side income formula backlight unit, be favorable to backlight unit 10's bilateral symmetry light-emitting.
With continued reference to fig. 4, in an embodiment, optionally, the backlight module 10 further includes: the first diffusion sheet 13 and the second diffusion sheet 14, the first diffusion sheet 13 and the second diffusion sheet 14 are respectively located at two sides of the light guide plate 12, so that the light emitted from the backlight module 10 is more uniform.
Fig. 5 is a schematic structural diagram of another backlight module according to an embodiment of the present invention, referring to fig. 5, in an embodiment, optionally, the light guide plate 12 includes a first light emitting surface and a second light emitting surface. The light guide plate 12 further includes a plurality of dots 121, a portion of the dots 121 is disposed on the first light emitting surface of the light guide plate 12, and a portion of the dots 121 is disposed on the second light emitting surface of the light guide plate 12. With this arrangement, not only can the two-sided light emission of the backlight module 10 be realized, but also the two-sided light emission is uniform, and the light emitted from the light source 11 can uniformly reach the first reflection-type polarizer 20 and the second reflection-type polarizer 40.
In one embodiment, optionally, the farther from the light source 11, the greater the density of dots 121; and the farther from the light source 11, the larger the size of the dots 121. That is, the dots 121 are arranged according to the rule of distance, density, distance, and size, which is beneficial to the backlight module 10 to emit light uniformly.
Fig. 6 is a schematic structural diagram of another double-sided liquid crystal display panel according to an embodiment of the present invention, referring to fig. 6, in an embodiment, optionally, the first liquid crystal cell 30 includes: the liquid crystal display panel comprises a first array substrate 31, a first liquid crystal layer 32 and a first color film substrate 33 which are stacked. The second liquid crystal cell 50 includes: and the second array substrate 51, the second liquid crystal layer 52 and the second color filter substrate 53 are stacked.
The first liquid crystal layer 32 includes a plurality of liquid crystal molecules, and the liquid crystal molecules are deflected under the action of an electric field to control the luminance of the first single-sided display panel. The first array substrate 31 is provided with a thin film transistor to control the electric field intensity of the corresponding liquid crystal molecules. A red filter layer, a green filter layer, and a blue filter layer are disposed on the first color film substrate 33 to realize full-color display of the first single-sided display panel. Similarly, the second liquid crystal layer 52 includes a plurality of liquid crystal molecules, and the liquid crystal molecules are deflected by the electric field to control the luminance of the second single-sided display panel. The second array substrate 51 is provided with a thin film transistor to control the electric field intensity of the corresponding liquid crystal molecules. A red filter layer, a green filter layer and a blue filter layer are disposed on the second color film substrate 53 to realize full-color display of the second single-sided display panel.
The embodiment of the utility model provides a still provide a two-sided liquid crystal display device, this two-sided liquid crystal display device includes if the utility model discloses the two-sided liquid crystal display panel that arbitrary embodiment provided, the effect of its technical principle and production is similar, no longer gives unnecessary details.
Fig. 7 is a schematic structural diagram of a double-sided liquid crystal display device according to an embodiment of the present invention, referring to fig. 7, on the basis of the foregoing embodiments, optionally, the double-sided liquid crystal display device further includes: a first flexible circuit board 100, a second flexible circuit board 200, and a driving chip (not shown in the drawing). The first flexible circuit board 100 includes a first end and a second end, the first end of the first flexible circuit board 100 being connected to the first liquid crystal cell 30; the second flexible circuit board 200 includes a first end and a second end, the first end of the second flexible circuit board 200 being connected with the second liquid crystal cell 50; the driving chip is connected to the second end of the first flexible circuit board 100, and the driving chip is connected to the second end of the second flexible circuit board 200; the driving chip provides a driving signal to the first liquid crystal cell 30 through the first flexible circuit board 100 to control a display image of the first single-sided display panel; the second flexible circuit board 200 supplies a driving signal to the second liquid crystal cell 50 to control the display screen of the second single-sided display panel.
The embodiment of the utility model provides a set up a driver chip of first single face display panel and second single face display panel sharing, be favorable to further simplifying double-sided liquid crystal display device's structure. Optionally, if the first single-sided display panel and the second single-sided display panel display the same picture, the driving chip may be further configured to transmit the same driving signal to the first flexible circuit board 100 and the second flexible circuit board 200, so as to facilitate simplification of the control logic.
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 double-sided liquid crystal display panel, comprising:
the backlight module emits light on two sides;
the first reflection type polaroid is positioned on one side of the backlight module and can transmit first linearly polarized light and reflect second linearly polarized light; wherein the angles of the first linearly polarized light and the second linearly polarized light are different;
the first liquid crystal box is positioned on one side of the first reflection type polaroid, which is far away from the backlight module;
the second reflection type polarizer is positioned on the other side of the backlight module and can transmit the second linearly polarized light and reflect the first linearly polarized light;
and the second liquid crystal box is positioned on one side of the second reflection-type polaroid, which is far away from the backlight module.
2. The double-sided liquid crystal display panel of claim 1, wherein the backlight module is a side-in type backlight module; the backlight module comprises a light source and a light guide plate, wherein the light source is positioned at one end of the light guide plate.
3. The dual-sided liquid crystal display panel of claim 2, wherein the light guide plate comprises a first light emitting surface and a second light emitting surface;
the light guide plate further comprises a plurality of mesh points, wherein part of the mesh points are arranged on the first light-emitting surface of the light guide plate, and part of the mesh points are arranged on the second light-emitting surface of the light guide plate.
4. The double-sided liquid crystal display panel of claim 3, wherein the farther from the light source, the greater the density of the dots; and the farther away from the light source, the larger the size of the dots.
5. The dual-sided liquid crystal display panel of claim 2, wherein the backlight module further comprises: the light guide plate comprises a first diffusion sheet and a second diffusion sheet, wherein the first diffusion sheet and the second diffusion sheet are respectively positioned on two sides of the light guide plate.
6. The double-sided liquid crystal display panel of any of claims 1 to 5, wherein the first reflective polarizer is capable of transmitting horizontally linearly polarized light and reflecting vertically linearly polarized light;
the second reflection type polarizer can transmit the vertical linearly polarized light and reflect the horizontal linearly polarized light.
7. The double-sided liquid crystal display panel of claim 6, further comprising:
the first polaroid is positioned on one side of the first liquid crystal box far away from the backlight module; the first polarizer can transmit vertical linearly polarized light;
the second polaroid is located on one side, away from the backlight module, of the second liquid crystal box, and the second polaroid can transmit horizontal linear polarized light.
8. The double-sided liquid crystal display panel according to any one of claims 1 to 5,
the first liquid crystal cell includes: the liquid crystal display panel comprises a first array substrate, a first liquid crystal layer and a first color film substrate which are arranged in a stacked mode;
the second liquid crystal cell includes: and the second array substrate, the second liquid crystal layer and the second color film substrate are arranged in a stacked manner.
9. A double-sided liquid crystal display device, comprising: the double-sided liquid crystal display panel as claimed in any one of claims 1 to 8.
10. The double-sided liquid crystal display device according to claim 9, further comprising:
a first flexible circuit board including a first end and a second end, the first end of the first flexible circuit board being connected to the first liquid crystal cell;
the second flexible circuit board comprises a first end and a second end, and the first end of the second flexible circuit board is connected with the second liquid crystal box;
the driving chip is connected with the second end of the first flexible circuit board, and the driving chip is connected with the second end of the second flexible circuit board; the driving chip provides a driving signal to the first liquid crystal box through the first flexible circuit board, and provides a driving signal to the second liquid crystal box through the second flexible circuit board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021830692.XU CN212723606U (en) | 2020-08-27 | 2020-08-27 | Double-sided liquid crystal display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021830692.XU CN212723606U (en) | 2020-08-27 | 2020-08-27 | Double-sided liquid crystal display panel and display device |
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| CN212723606U true CN212723606U (en) | 2021-03-16 |
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