CN210467843U - OLED display device with controllable wide and narrow viewing angles - Google Patents
OLED display device with controllable wide and narrow viewing angles Download PDFInfo
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- CN210467843U CN210467843U CN201921840261.9U CN201921840261U CN210467843U CN 210467843 U CN210467843 U CN 210467843U CN 201921840261 U CN201921840261 U CN 201921840261U CN 210467843 U CN210467843 U CN 210467843U
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a controllable OLED display device of wide and narrow visual angle, including the OLED display panel who is used for controlling the liquid crystal cell that the visual angle switches and is located the liquid crystal cell below, the liquid crystal cell includes first base plate, the second base plate that sets up relatively with first base plate and is located the liquid crystal layer between first base plate and the second base plate, is equipped with auxiliary electrode on the first base plate, be equipped with on the second base plate with auxiliary electrode complex visual angle control electrode. The utility model discloses a voltage on auxiliary electrode and visual angle control electrode is applyed in control, makes the liquid crystal molecule in the liquid crystal layer take place to deflect between first base plate and second base plate to OLED display device freely switches between wide visual angle and narrow visual angle, the utility model provides an OLED display device preparation structure is succinct, the processing procedure technology accords with the present situation reality, and the implementation nature is high.
Description
Technical Field
The utility model relates to a OLED shows technical field, especially relates to a controllable OLED display device of wide and narrow visual angle.
Background
With the development of the information age, the application of display screens is becoming wider and diversified, and display screens of various technologies are also developing vigorously, an OLED (Organic Light-Emitting Diode) is a next-generation display behind an LCD (liquid crystal display), and the OLED display has the advantages of good picture quality, small volume, Light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and is becoming more widespread.
Due to the self-luminous characteristic, the general OLED display has wide viewing angle and high color saturation, the visual angle of the display can reach over 160 degrees, and people hope to effectively protect business confidentiality and personal privacy while enjoying the experience of large viewing angle so as to avoid business loss or embarrassment caused by the leakage of screen information. Therefore, in addition to the requirement of wide viewing angle, in many cases, the display device is required to have the function of switching between wide and narrow viewing angles.
At present mainly take attached tripe barrier film on the display screen to realize the switching of wide narrow visual angle, when needs peep-proof, utilize the tripe barrier film to cover the screen and can reduce the visual angle, but this kind of mode needs additionally to prepare the tripe barrier film, can cause very big inconvenience for the user, and a tripe barrier film can only realize a visual angle, in case after the attached tripe barrier film, the visual angle is just fixed in narrow visual angle mode, lead to can't freely switch between wide visual angle mode and narrow visual angle mode, and the peep-proof piece can cause luminance to reduce and influence the grade.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a controllable OLED display device of wide and narrow visual angle to solve among the prior art OLED display device can not freely switch over the problem of visual angle.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a controllable OLED display device of wide and narrow visual angle, including the OLED display panel who is used for controlling the liquid crystal box that the visual angle switches and is located this liquid crystal box below, this liquid crystal box includes first base plate, the second base plate that sets up relatively with this first base plate and is located the liquid crystal layer between this first base plate and the second base plate, is equipped with auxiliary electrode on this first base plate, be equipped with on this second base plate with this auxiliary electrode complex visual angle control electrode.
Furthermore, the OLED display device also comprises a prism sheet, wherein the prism sheet is positioned between the liquid crystal box and the OLED display panel, and the convex side of the prism sheet faces the liquid crystal box.
Furthermore, the auxiliary electrode and the viewing angle control electrode are both planar electrodes arranged on the whole surface, the auxiliary electrode is positioned on one side of the first substrate facing the liquid crystal layer, and the viewing angle control electrode is positioned on one side of the second substrate facing the liquid crystal layer.
Furthermore, the auxiliary electrode is a planar electrode arranged on the whole surface, the viewing angle control electrode is a block electrode, the second substrate is further provided with a plurality of scanning lines, a plurality of data lines and a thin film transistor, the viewing angle control electrode is electrically connected with the scanning lines and the data lines which are adjacent to the thin film transistor through the thin film transistor, the auxiliary electrode is positioned on one side of the first substrate facing the liquid crystal layer, and the viewing angle control electrode, the scanning lines, the data lines and the thin film transistor are positioned on one side of the second substrate facing the liquid crystal layer.
Furthermore, the viewing angle control electrodes correspond to the sub-pixels of the OLED display device one by one.
Further, the liquid crystal layer adopts positive liquid crystal molecules, the initial alignment of the positive liquid crystal molecules is parallel to the first substrate and the second substrate, and the alignment direction of the positive liquid crystal molecules close to the first substrate is parallel or antiparallel to the alignment direction close to the second substrate.
Further, when no voltage difference exists between the auxiliary electrode and the viewing angle control electrode or the voltage difference is smaller than a preset value, the OLED display device works in a wide viewing angle mode; when the voltage difference between the auxiliary electrode and the viewing angle control electrode is greater than a preset value, the OLED display device works in a narrow viewing angle mode.
Furthermore, the liquid crystal layer adopts negative liquid crystal molecules, and the initial pretilt angle of the negative liquid crystal molecules in the liquid crystal layer relative to the first substrate and the second substrate is between 30 and 60 degrees.
Further, when there is no voltage difference between the auxiliary electrode and the viewing angle control electrode or the voltage difference is less than a preset value, the OLED display device operates in a narrow viewing angle mode; when the voltage difference between the auxiliary electrode and the viewing angle control electrode is greater than a preset value, the OLED display device works in a wide viewing angle mode.
Furthermore, the OLED display device is provided with a visual angle switching key for a user to send a visual angle switching request to the OLED display device.
The utility model has the advantages that: the OLED display device with the controllable wide and narrow visual angles comprises a liquid crystal box for controlling visual angle switching and an OLED display panel located below the liquid crystal box, wherein the liquid crystal box comprises a first substrate, a second substrate arranged opposite to the first substrate and a liquid crystal layer located between the first substrate and the second substrate, an auxiliary electrode is arranged on the first substrate, and a visual angle control electrode matched with the auxiliary electrode is arranged on the second substrate. Apply the voltage on auxiliary electrode and the visual angle control electrode through the control, make the liquid crystal molecule in the liquid crystal layer take place to deflect between first base plate and second base plate to OLED display device freely switches between wide visual angle and narrow visual angle, the utility model provides an OLED display device makes that the structure is succinct, the processing procedure technology accords with the present situation reality, and the implementation nature is high.
Drawings
Fig. 1 is a schematic structural diagram of an OLED display device in a wide viewing angle according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an OLED display device in a narrow viewing angle according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of an OLED display device in a second embodiment of the present invention at a wide viewing angle;
fig. 4 is a schematic structural diagram of an OLED display device in a narrow viewing angle according to a second embodiment of the present invention;
fig. 5 is a schematic plan view of a second substrate according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of an OLED display device in a third embodiment of the present invention at a narrow viewing angle;
fig. 7 is a schematic structural diagram of an OLED display device in a third embodiment of the present invention at a wide viewing angle;
fig. 8 is a schematic plane structure diagram of an OLED display device according to the present invention;
fig. 9 is a second schematic plane structure diagram of the OLED display device according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following detailed description will be made in conjunction with the accompanying drawings and preferred embodiments of the present invention for the specific implementation, structure, features and effects of the OLED display device with controllable wide and narrow viewing angles, as follows:
[ example one ]
Fig. 1 is a schematic structural diagram of an OLED display device at a wide viewing angle in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of an OLED display device at a narrow viewing angle in an embodiment of the present invention. As shown in fig. 1 and fig. 2, a wide and narrow viewing angle controllable OLED display device according to an embodiment of the present invention includes a liquid crystal cell 10 for controlling viewing angle switching and an OLED display panel 20 located below the liquid crystal cell 10. The OLED display panel 20 includes a substrate 21, an anode 211 and a cathode 213 disposed on the substrate 21, and an organic light emitting Layer 212 disposed between the anode 211 and the cathode 213, wherein the organic light emitting Layer 212 includes a Hole Transport Layer (HTL), an Emission Material Layer (EML), an Electron Transport Layer (ETL), and the like, which are made of organic materials. A thin film transistor array layer (not shown) is further disposed on the substrate 21, and the thin film transistor array layer has various structural film layers such as thin film transistors, data lines, and scan lines. For a more detailed description of the OLED display panel 20, please refer to the prior art, which is not described herein.
The liquid crystal cell 10 includes a first substrate 11, a second substrate 12 disposed opposite to the first substrate 11, and a liquid crystal layer 13 disposed between the first substrate 11 and the second substrate 12, wherein an auxiliary electrode 111 is disposed on the first substrate 11, and a viewing angle control electrode 121 cooperating with the auxiliary electrode 111 is disposed on the second substrate 12. In the present embodiment, the auxiliary electrode 111 and the viewing angle control electrode 121 are both planar electrodes disposed on the whole surface, the auxiliary electrode 111 is located on the side of the first substrate 11 facing the liquid crystal layer 13, and the viewing angle control electrode 121 is located on the side of the second substrate 12 facing the liquid crystal layer 13.
In this embodiment, the liquid crystal layer 13 is made of positive liquid crystal molecules, that is, liquid crystal molecules with positive dielectric anisotropy, and in an initial state, as shown in fig. 1, the positive liquid crystal molecules in the liquid crystal layer 13 are aligned parallel to the first substrate 11 and the second substrate 12, the alignment directions of the positive liquid crystal molecules near the first substrate 11 and the positive liquid crystal molecules near the second substrate 12 are parallel or antiparallel, and at this time, the display panel has a wide viewing angle. Of course, the positive liquid crystal molecules may have a small pretilt angle (e.g., less than 7 °) when initially aligned, i.e., the positive liquid crystal molecules initially form a small angle with the first and second substrates 11 and 12, and may accelerate the positive liquid crystal molecules to deflect toward the vertical direction when switching to the narrow viewing angle. The first substrate 11 and the second substrate 12 are both common substrates, i.e., transparent substrates, and no color-resist material is required to be disposed on the first substrate 11 or the second substrate 12.
In this embodiment, the OLED display device further includes a prism sheet 30, the prism sheet 30 is located between the liquid crystal cell 10 and the OLED display panel 20, a convex side of the prism sheet 30 faces the liquid crystal cell 10, and the prism sheet 30 is used for converging light of the OLED display panel 20 and emitting the light to the liquid crystal cell 10, so as to improve the brightness and quality of the OLED display device.
The first substrate 11, the second substrate 12 and the substrate 21 may be made of glass, acrylic, polycarbonate, or the like. The material of the auxiliary electrode 111 and the viewing angle controlling electrode 121 may be Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), or the like.
As shown in fig. 1, in the wide viewing angle mode, no voltage or the same voltage is applied to the auxiliary electrode 111 and the viewing angle control electrode 121, so that the voltage difference between the auxiliary electrode 111 and the viewing angle control electrode 121 is zero or less than a preset value (0.1V). At this time, the positive liquid crystal molecules are not deflected basically, and maintain the original lying posture, and the OLED display device displays wide visual angle display.
As shown in fig. 2, in the narrow viewing angle mode, a voltage with a large amplitude is applied to the auxiliary electrode 111 and the viewing angle control electrode 121, so that the voltage difference between the auxiliary electrode 111 and the viewing angle control electrode 121 is greater than a predetermined value (e.g. 5V), a vertical electric field E1 is formed between the first substrate 11 and the second substrate 12 (as shown by the arrow in fig. 2), the positive liquid crystal molecules are rotated in a direction perpendicular to the electric field lines under the action of the electric field, and thus the positive liquid crystal molecules are deflected under the action of the vertical electric field E1, so that the tilt angle between the positive liquid crystal molecules and the first substrate 11 and the second substrate 12 is increased, the positive liquid crystal molecules are changed from a flat posture to a tilted posture, the positive liquid crystal molecules are greatly deflected in the vertical direction, so that large-angle viewing light leakage occurs to the display panel, the contrast is reduced in the oblique viewing direction and the viewing angle is, the OLED display device finally realizes narrow viewing angle display.
[ example two ]
Fig. 3 is a schematic structural view of an OLED display device at a wide viewing angle in an embodiment of the present invention, fig. 4 is a schematic structural view of an OLED display device at a narrow viewing angle in an embodiment of the present invention, and fig. 5 is a schematic planar structural view of a second substrate in an embodiment of the present invention. As shown in fig. 3 to fig. 5, the OLED display device with controllable wide and narrow viewing angles provided by embodiment two of the present invention is substantially the same as the OLED display device with controllable wide and narrow viewing angles in embodiment one (fig. 1 and fig. 2), except that, in this embodiment, the auxiliary electrode 111 is a planar electrode disposed on the whole surface, the viewing angle control electrode 121 is a block electrode, the second substrate 12 is further provided with a plurality of scan lines 1, a plurality of data lines 2 and a thin film transistor 3, the viewing angle control electrode 121 is electrically connected to the scan lines 1 and the data lines 2 of the adjacent thin film transistor 3 through the thin film transistor 3, the auxiliary electrode 111 is located on one side of the first substrate 11 facing the liquid crystal layer 13, and the viewing angle control electrode 121, the scan lines 1, the data lines 2 and the thin film transistor 3 are all located on one side of the second substrate 12 facing the liquid crystal layer. The thin film transistor 3 includes a gate electrode, an active layer, a drain electrode, and a source electrode.
In this embodiment, the viewing angle control electrodes 121 correspond to the sub-pixels of the OLED display device one by one, and of course, in other embodiments, each viewing angle control electrode 121 may correspond to a plurality of sub-pixels.
In contrast to the first embodiment, in the present embodiment, the viewing angle control electrode 121 is controlled by the thin film transistor 3, so that the wide and narrow viewing angle switching function of the OLED display device is controllable in a local area, and power consumption is reduced.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ third example ]
Fig. 6 is a schematic structural diagram of an OLED display device at a narrow viewing angle in the third embodiment of the present invention, and fig. 7 is a schematic structural diagram of an OLED display device at a wide viewing angle in the third embodiment of the present invention. As shown in fig. 6 and 7, the OLED display device with controllable wide and narrow viewing angles according to the third embodiment of the present invention is substantially the same as the OLED display device with controllable wide and narrow viewing angles according to the first embodiment (fig. 1 and 2), except that in this embodiment, negative liquid crystal molecules (liquid crystal molecules with negative dielectric anisotropy) are used as the liquid crystal layer 13. With the technical progress, the performance of the negative liquid crystal is remarkably improved, and the application is more and more extensive. As shown in fig. 6, in the initial state (i.e., in the case where no voltage is applied to the liquid crystal cell 10), the negative liquid crystal molecules in the liquid crystal layer 13 have a large initial pretilt angle with respect to the first and second substrates 11 and 12, i.e., the negative liquid crystal molecules are in an inclined posture with respect to the first and second substrates 11 and 12 in the initial state, and preferably, the initial pretilt angle of the negative liquid crystal molecules in the liquid crystal layer 13 with respect to the first and second substrates 11 and 12 is between 30 ° and 60 °.
As shown in fig. 6, in the narrow viewing angle mode, no voltage or the same voltage is applied to the auxiliary electrode 111 and the viewing angle control electrode 121, so that the voltage difference between the auxiliary electrode 111 and the viewing angle control electrode 121 is zero or less than a predetermined value (0.1V), at this time, since the voltage difference between the auxiliary electrode 111 and the viewing angle control electrode 121 is small, the tilt angle of the negative liquid crystal molecules in the liquid crystal layer 40 is almost not changed, and the negative liquid crystal molecules are in an inclined posture with respect to the first substrate 11 and the second substrate 12, so that the liquid crystal display device has large-angle viewing light leakage, the contrast is reduced in the oblique viewing direction, the viewing angle is narrowed, and the OLED display device displays in a normal narrow viewing angle.
As shown in fig. 7, in the wide viewing angle mode, a voltage with a larger amplitude is applied to the auxiliary electrode 111 and the viewing angle control electrode 121, so that the voltage difference between the auxiliary electrode 111 and the viewing angle control electrode 121 is larger than a predetermined value (e.g. 5V), and a vertical electric field is formed between the first substrate 11 and the second substrate 12, at this time, since the voltage difference between the auxiliary electrode 111 and the viewing angle control electrode 121 is larger, a stronger vertical electric field E1 (as shown by an arrow in fig. 7) is generated between the first substrate 11 and the second substrate 12, and negative liquid crystal molecules rotate in a direction perpendicular to electric field lines under the action of the electric field, so that the negative liquid crystal molecules are deflected under the action of the vertical electric field E1, so that the tilt angle between the negative liquid crystal molecules and the first substrate 11 and the second substrate 12 is reduced, and the negative liquid crystal molecules are changed from a tilted posture to a lying posture, therefore, the OLED display device finally realizes a wide viewing angle display.
Compared with the first embodiment, the liquid crystal layer 13 in the present embodiment uses negative liquid crystal molecules, and thus power consumption is smaller in a narrow viewing angle.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
Fig. 8 is a schematic plane structure diagram of the OLED display device of the present invention, and fig. 9 is a schematic plane structure diagram of the OLED display device of the present invention. Referring to fig. 8 and 9, the OLED display device is provided with a viewing angle switching key 40 for a user to send a viewing angle switching request to the OLED display device. The view switching key 40 may be a physical key (as shown in fig. 8), or may be a software control or application program (APP) to implement a switching function (as shown in fig. 9, a wide view and a narrow view are set by a slider). When the user needs to switch between wide visual angle and narrow visual angle, can send visual angle switching request to OLED display device through operation visual angle switching button 40, the voltage of applying on auxiliary electrode 111 and visual angle control electrode 121 is controlled by drive chip 50 finally, when the voltage difference between auxiliary electrode 111 and visual angle control electrode 121 is different, OLED display device can realize the switching between wide visual angle and the narrow visual angle, when switching into wide visual angle, its drive method adopts the drive method that wide angle mode corresponds, when switching into narrow visual angle, its drive method adopts the drive method that narrow visual angle mode corresponds, consequently the utility model discloses an OLED display device has stronger operation flexibility and convenience, reaches the multi-functional OLED display device that collects amusement video and privacy and keeps secret in an organic whole.
In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The OLED display device with the controllable wide and narrow viewing angles is characterized by comprising a liquid crystal box (10) used for controlling the switching of the viewing angles and an OLED display panel (20) located below the liquid crystal box (10), wherein the liquid crystal box (10) comprises a first substrate (11), a second substrate (12) arranged opposite to the first substrate (11) and a liquid crystal layer (13) located between the first substrate (11) and the second substrate (12), an auxiliary electrode (111) is arranged on the first substrate (11), and a viewing angle control electrode (121) matched with the auxiliary electrode (111) is arranged on the second substrate (12).
2. The OLED display device with controllable wide and narrow viewing angles according to claim 1, further comprising a prism sheet (30), wherein the prism sheet (30) is located between the liquid crystal cell (10) and the OLED display panel (20), and a convex side of the prism sheet (30) faces the liquid crystal cell (10).
3. The OLED display device with controllable wide and narrow viewing angles according to claim 1, wherein the auxiliary electrode (111) and the viewing angle control electrode (121) are planar electrodes disposed on the whole surface, the auxiliary electrode (111) is disposed on the side of the first substrate (11) facing the liquid crystal layer (13), and the viewing angle control electrode (121) is disposed on the side of the second substrate (12) facing the liquid crystal layer (13).
4. The OLED display device with controllable wide and narrow viewing angles according to claim 1, wherein the auxiliary electrode (111) is a planar electrode disposed on the whole surface, the viewing angle control electrode (121) is a block electrode, the second substrate (12) is further disposed with a plurality of scan lines (1), a plurality of data lines (2) and thin film transistors (3), the viewing angle control electrode (121) is electrically connected to the scan lines (1) and the data lines (2) adjacent to the thin film transistors (3) through the thin film transistors (3), the auxiliary electrode (111) is disposed on a side of the first substrate (11) facing the liquid crystal layer (13), and the viewing angle control electrode (121), the scan lines (1), the data lines (2) and the thin film transistors (3) are disposed on a side of the second substrate (12) facing the liquid crystal layer (13).
5. The OLED display device with controllable wide and narrow viewing angles according to claim 4, wherein the viewing angle control electrodes (121) are in one-to-one correspondence with the sub-pixels of the OLED display device.
6. The OLED display device with controllable wide and narrow viewing angles according to claim 1, wherein the liquid crystal layer (13) employs positive liquid crystal molecules, the initial alignment of the positive liquid crystal molecules is parallel to the first substrate (11) and the second substrate (12), and the alignment direction of the positive liquid crystal molecules close to the first substrate (11) is parallel or anti-parallel to the alignment direction close to the second substrate (12).
7. The OLED display device with controllable wide and narrow viewing angles according to claim 6, wherein when there is no voltage difference between the auxiliary electrode (111) and the viewing angle control electrode (121) or the voltage difference is less than a predetermined value, the OLED display device is operated in a wide viewing angle mode; when the voltage difference between the auxiliary electrode (111) and the viewing angle control electrode (121) is greater than a preset value, the OLED display device operates in a narrow viewing angle mode.
8. The OLED display device with controllable wide and narrow viewing angles according to claim 1, wherein the liquid crystal layer (13) employs negative liquid crystal molecules, and the initial pretilt angle of the negative liquid crystal molecules in the liquid crystal layer (13) relative to the first substrate (11) and the second substrate (12) is between 30 ° and 60 °.
9. The OLED display device with controllable wide and narrow viewing angles according to claim 8, wherein when there is no voltage difference between the auxiliary electrode (111) and the viewing angle control electrode (121) or the voltage difference is less than a predetermined value, the OLED display device operates in a narrow viewing angle mode; when the voltage difference between the auxiliary electrode (111) and the viewing angle control electrode (121) is greater than a preset value, the OLED display device works in a wide viewing angle mode.
10. The OLED display device with controllable wide and narrow viewing angles according to claim 1, wherein the OLED display device is provided with a viewing angle switching key (40) for a user to send a viewing angle switching request to the OLED display device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921840261.9U CN210467843U (en) | 2019-10-29 | 2019-10-29 | OLED display device with controllable wide and narrow viewing angles |
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| CN201921840261.9U CN210467843U (en) | 2019-10-29 | 2019-10-29 | OLED display device with controllable wide and narrow viewing angles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925125A (en) * | 2021-03-25 | 2021-06-08 | 维沃移动通信有限公司 | Display device and electronic apparatus |
| CN113934048A (en) * | 2021-11-22 | 2022-01-14 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
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2019
- 2019-10-29 CN CN201921840261.9U patent/CN210467843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925125A (en) * | 2021-03-25 | 2021-06-08 | 维沃移动通信有限公司 | Display device and electronic apparatus |
| CN113934048A (en) * | 2021-11-22 | 2022-01-14 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
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