CN108845416B - Optical path adjusting device and display device - Google Patents
Optical path adjusting device and display device Download PDFInfo
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- CN108845416B CN108845416B CN201810704528.5A CN201810704528A CN108845416B CN 108845416 B CN108845416 B CN 108845416B CN 201810704528 A CN201810704528 A CN 201810704528A CN 108845416 B CN108845416 B CN 108845416B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 61
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 239000002033 PVDF binder Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 230000005684 electric field Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000016776 visual perception Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The invention provides an optical path adjusting device and a display device. The adjusting unit of the optical path adjusting device comprises a first electrode, a second electrode and a piezoelectric film arranged between the first electrode and the second electrode, and the piezoelectric film can be deformed based on the inverse piezoelectric effect by applying voltage to the first electrode and the second electrode, so that the optical path deflection can be generated when light passes through the piezoelectric film. When the light path adjusting device provided by the invention is applied to a display device, the light path of emergent light of a display screen of the display device can be adjusted, so that the haze compensation of the display screen is realized, and the display effect of the display device can be effectively improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an optical path adjusting device and a display device.
Background
In the display field, a display screen mostly includes components such as cover glass (cover glass), a polarizer, and a light emitting unit. Some components of the existing display screen have a certain haze phenomenon, and the haze phenomenon directly affects the display effect of the display screen.
Specifically, when light passes through each component in the display screen, the haze phenomenon causes a change in the light property (for example, a change in polarization characteristics), so that the path of the light exiting from the display screen is deflected, and the display effect of the picture is affected to a certain extent. And the haze difference exists at different positions of the display screen, so that light rays at different positions are deflected to different degrees after passing through various components of the display screen, and obvious visual difference exists in the display process of the display screen.
Disclosure of Invention
The invention aims to provide an optical path adjusting device which is used for adjusting the optical path of light rays deviating from an ideal path.
To this end, the present invention provides an optical path adjusting device having a plurality of adjusting units including: the first electrode, the second electrode and the piezoelectric film disposed between the first electrode and the second electrode are deformed when a voltage is applied to the first electrode and the second electrode, for deflecting the light passing through the adjustment unit.
Optionally, the adjusting unit further includes: and a compensation circuit for compensating a voltage applied between the first electrode and the second electrode.
Optionally, the piezoelectric film has a light incident surface and a light emergent surface, and light enters the piezoelectric film from the light incident surface and exits from the light emergent surface; and the light incident surface and the light emergent surface of the piezoelectric film are in a non-parallel state when a voltage is applied to the first electrode and the second electrode.
Optionally, the material of the piezoelectric film comprises polyvinylidene fluoride.
Optionally, the plurality of adjustment units are arranged in an array, the first electrodes of the plurality of adjustment units arranged on the same column are connected to the same first signal line, and the second electrodes of the plurality of adjustment units arranged on the same row are connected to the same second signal line.
Another object of the present invention is to provide a display device including:
the display screen is used for displaying pictures; the method comprises the steps of,
the light path adjusting device is arranged on the light emitting surface of the display screen and is used for adjusting the path of the light rays emitted from the display screen.
Optionally, a signal output port is disposed on the display screen, a signal receiving port is disposed on the optical path adjusting device, and when the optical path adjusting device is disposed on the display screen, the signal receiving port of the optical path adjusting device is connected to the signal output port of the display screen.
Optionally, the signal transmission port of the display screen is configured to transmit a haze parameter signal of the display screen at a predetermined position to the optical path adjusting device, and the optical path adjusting device adjusts the adjusting unit corresponding to the predetermined position according to the received haze parameter signal.
Optionally, the display screen is provided with a touch layer, and the touch layer comprises a touch electrode formed by adopting a nano silver wire.
Optionally, the display screen further includes a light emitting layer, and the light emitting layer is disposed on a side of the touch structure away from the light emitting surface of the display screen.
In the optical path adjusting device provided by the invention, the first electrode and the second electrode are utilized to provide an electric field, so that the piezoelectric film between the first electrode and the second electrode deforms under the action of the electric field, and therefore, when light passes through the piezoelectric film with mechanical deformation, the light can deflect in an optical path. In addition, the light path adjusting device is provided with a plurality of adjusting units, so that the adjusting units at corresponding positions can be regulated and controlled according to the specific light path conditions of all the positions, and the light path can be adjusted more accurately by utilizing the adjusting units at the corresponding positions. When the light path adjusting device is applied to a display device, the light path of emergent light of a display screen in the display device can be adjusted, and the light path can be accurately adjusted by utilizing an adjusting unit at a corresponding position based on the light path conditions of the display screen at different positions. For example, the display screen has haze difference at different positions, so that deflection difference exists in the light paths of the emergent light of the display screen at different positions, and at the moment, the haze compensation of the display screen can be realized by utilizing the light path adjusting device, so that the display effect of the display device is improved.
Drawings
FIG. 1 is a schematic diagram of an optical path adjusting device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an adjusting unit of an optical path adjusting device according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a compensation circuit of an optical path adjusting device according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a display device according to an embodiment of the invention.
Wherein, the reference numerals are as follows:
10-an optical path adjustment device;
100-an adjusting unit;
110-a first electrode;
120-a second electrode;
130-a piezoelectric film;
131-incidence plane;
132—an exit face;
140-a compensation circuit;
20-a display screen;
210-a touch layer;
220-a light emitting layer;
s1-a first signal line;
s2-a second signal line.
Detailed Description
As described in the background art, the existing display screen often has a haze phenomenon, so that the display effect of the whole display screen is adversely affected. In addition, even there is the haze difference in different positions of the display screen, and then can lead to the display screen to have obvious visual difference in its display process, has further influenced user's visual perception.
To this end, the present invention provides an optical path adjusting device having a plurality of adjusting units including: the first electrode, the second electrode and the piezoelectric film disposed between the first electrode and the second electrode are deformed when a voltage is applied to the first electrode and the second electrode, for deflecting the light passing through the adjustment unit.
The optical path adjusting device provided by the invention enables the piezoelectric film to be mechanically deformed according to the electric field provided by the first electrode and the second electrode based on the inverse piezoelectric effect, thereby being capable of being used for realizing the adjustment of the optical path. When the light path adjusting device is applied to a display device, the light path of emergent light which is emitted from the display screen and deviates from an ideal path due to the haze phenomenon can be adjusted, so that the light path finally projected by the display device is closer to the ideal path, and the display effect of the display device is improved. This is equivalent to the optical path compensation device provided by the invention being used for haze compensation of a display screen of a display device.
The light path adjusting device and the display device according to the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Fig. 1 is a schematic structural view of an optical path adjusting device according to a first embodiment of the present invention, and fig. 2 is a schematic structural view of an adjusting unit of the optical path adjusting device according to an embodiment of the present invention. As shown in fig. 1 and 2, the optical path adjusting device 10 has a plurality of adjusting units 100, the adjusting units 100 including: a first electrode 110, a second electrode 120, and a piezoelectric film 130 disposed between the first electrode 110 and the second electrode 120. The piezoelectric film 130 is deformed when a voltage is applied to the first electrode 110 and the second electrode 120, for deflecting the optical path of the light passing through the adjustment unit 100.
Specifically, the adjusting unit 100 enables the piezoelectric film 130 to mechanically deform under the electric field provided by the first electrode 110 and the second electrode 120 based on the inverse piezoelectric effect, so that when light passes through the piezoelectric film 130, the deflection of the light path can be achieved correspondingly. Therefore, when the optical path adjusting device 10 is applied to a device to be adjusted in which optical path adjustment is to be performed (for example, the optical path adjusting device 10 may be disposed on the light-emitting surface of the device to be adjusted), it is possible to achieve path deflection in a predetermined direction of light emitted from the device to be adjusted. In addition, since the optical path adjusting device 10 has the plurality of adjusting units 100, the plurality of adjusting units 100 can be driven independently (specifically, since each adjusting unit 100 is configured with the first electrode 110 and the second electrode 120, the voltage can be applied independently to the first electrode 110 and the second electrode 120 of each adjusting unit 100, thereby realizing independent driving control of the adjusting units 100), so that the adjusting units 100 at corresponding positions can be further driven and controlled according to specific paths of outgoing light rays at different positions of the device to be adjusted, thereby making the paths of the light rays finally outgoing from the optical path adjusting device 10 uniform (for example, making the outgoing light rays appear as parallel light rays), and realizing the purpose of correspondingly adjusting the optical paths of the whole outgoing surface of the device to be adjusted at each position.
For example, when the optical path adjusting apparatus 10 is applied to a display device, it is possible to effectively improve the haze phenomenon of the display screen of the display device. And, the adjustment units 100 at the corresponding positions can be correspondingly adjusted and controlled based on the haze phenomena of the display screen at different positions, so that the light path of the final emergent light is uniform, and the display effect of the display device can be effectively improved.
Wherein, the material of the piezoelectric film 130 may include polyvinylidene fluoride (PVDF). Specifically, the polyvinylidene fluoride (PVDF) piezoelectric film is an organic polymer film, has the characteristics of high dielectric strength, good stability, flexibility, good processability and small volume, and has the characteristics of high force-electricity conversion sensitivity and high mechanical property strength compared with the traditional piezoelectric material.
The first electrode 110 and the second electrode 120 may each be formed of a transparent conductive material so that light can pass through the first electrode 110 and the second electrode 120, respectively. Specifically, the materials of the first electrode 110 and the second electrode 120 include Indium Tin Oxide (ITO), for example.
With continued reference to fig. 2, in this embodiment, when voltages are applied to the first electrode 110 and the second electrode 120 to mechanically deform the piezoelectric film 130, for example, the light incident surface 131 and the light emergent surface 132 of the piezoelectric film 130 may be in a non-parallel state, so that the light beam can deflect the light path after passing through the piezoelectric film 130. In this embodiment, after the voltage is applied to the first electrode 110 and the second electrode 120, the light emitting surface 132 of the piezoelectric film 130 is inclined with respect to the light entering surface 131.
In this embodiment, under the condition of no electric field (i.e. under the condition that no voltage is applied to the first electrode 110 and the second electrode 120), the initial morphology of the piezoelectric film 130 is represented by the non-parallel state of the light incident surface 131 and the light emergent surface 132 (for example, refer to fig. 2, in which the transparent material is filled between the electrode and the piezoelectric film 130 correspondingly); therefore, when an electric field is generated by the first electrode 110 and the second electrode 120 which are arranged in parallel, the piezoelectric film 130 is compressed and deformed along the direction of the electric field, and at this time, the light emitting surface 132 of the piezoelectric film 130 is inclined relative to the light entering surface 131 after contraction, so that the light can be deflected to a certain extent.
Of course, in other embodiments, the light incident surface and the light emergent surface of the piezoelectric film may be parallel to each other, and in this case, the electric field generated by the first electrode and the second electrode may be non-parallel to the light incident surface and/or the light emergent surface of the piezoelectric film. For example, the direction from the light incident surface to the light emergent surface of the piezoelectric film is a first direction, the direction of an electric field generated by the first electrode and the second electric field is a second direction, and the first direction and the second direction intersect; in this way, when a voltage is applied to the first electrode and the second electrode, the piezoelectric film is capable of shrinking and deforming in the second direction, and the light incident surface and the light emergent surface of the piezoelectric film after shrinking are in a non-parallel state.
Further, the adjusting unit 100 further includes a compensation circuit 140 for compensating the voltage applied between the first electrode 110 and the second electrode 120.
Based on the inverse piezoelectric effect, a voltage is applied to the first electrode 110 and the second electrode 120 to generate an electric field between the first electrode 110 and the second electrode 120, so that the piezoelectric film 130 between the first electrode 110 and the second electrode 120 can be deformed. Further, as the voltage applied to the first electrode 110 and the second electrode 120 is greater, the piezoelectric film 130 is correspondingly deformed more. Wherein, the different degrees of mechanical deformation of the piezoelectric film 130 will deflect the path of the light to different degrees.
Therefore, in this embodiment, by providing the compensation circuit 140 in each adjustment unit 100, each adjustment unit 100 can compensate the voltage according to the path condition of the light beam at the corresponding position, so as to adjust the deformation of the piezoelectric film 130, and further adjust the path deflection degree of the light beam accordingly, thereby realizing more accurate adjustment of the light paths at different positions. The compensation circuit 140 may be electrically connected to the first electrode 110 or the second electrode 120 to compensate the voltage between the first electrode 110 and the second electrode 120.
For example, referring to fig. 2, in the present embodiment, when the voltages on the first electrode 110 and the second electrode 120 are increased, the piezoelectric film 130 further contracts, and the light emitting surface 132 after contraction is inclined relative to the light entering surface 131, so that the light can be deflected to a greater extent.
Referring specifically to fig. 3, in the adjusting unit 100, the compensating circuit 140 may be connected to the first electrode 110 or may be connected to the second electrode 120; alternatively, the compensation circuit 140 is disposed on the signal lines of the first electrode 110 and the second electrode 120.
Next, referring to fig. 1, in the present embodiment, a plurality of the adjusting units 100 are arranged in an array, and the first electrodes 110 of the plurality of adjusting units 100 arranged on the same column are all connected to the same first signal line S1, and the second electrodes 120 of the plurality of adjusting units 100 arranged on the same row are all connected to the same second signal line S2. That is, in the array of the plurality of adjustment units 100, the plurality of first signal lines S1 are provided for the plurality of columns of adjustment units 100, and the plurality of second signal lines S2 are provided for the plurality of rows of adjustment units 100, so that a predetermined voltage can be applied to the first electrode 110 and the second electrode 120 of each adjustment unit 100 by using the first signal lines S1 and the second signal lines S2.
As described above, during the use of the optical path adjusting apparatus 10, the driving condition of the adjusting unit 100 at the corresponding position in the optical path adjusting apparatus 10 can be controlled based on the light state of each position of the device to be adjusted. Specifically, based on the selected adjustment unit 100, an electric signal may be supplied to the first signal line S1 corresponding to the first electrode 110 of the selected adjustment unit 100 and an electric signal may be supplied to the second signal line S2 corresponding to the second electrode 120 of the selected adjustment unit 100, thereby driving the selected adjustment unit 100.
In this embodiment, the compensation circuit 140 is further disposed in the adjustment unit 100, so that the total voltage finally applied between the first electrode 110 and the second electrode 120 can be further compensated on the basis of the voltage values provided by the first signal line S1 and the second signal line S2.
It is considered that the region of the optical path compensating device 10 where the plurality of adjustment units 100 are provided constitutes an optical path adjustment region. Further, the optical path compensating device 10 further has a peripheral circuit area, which is disposed at the periphery of the optical path adjusting area, so as to be used for setting a peripheral circuit, so that the signal transmission of the first signal line S1 and the second signal line S2 can be regulated and controlled by the peripheral circuit.
The invention also provides a display device, the display device comprises the optical path adjusting device, and the optical haze compensation is carried out on the display device by utilizing the optical path adjusting device, so that the display effect of the display device is improved.
Fig. 4 is a schematic structural diagram of a display device according to an embodiment of the present invention, as shown in fig. 4, the display device includes:
a display screen 20 for displaying an image;
the light path adjusting device 10 is disposed on the display 20, and is used for adjusting the path of the emergent light emitted from the display.
As described in the background art, there are a plurality of components in a display screen, and when light passes through each component in the display screen, a change in the light property occurs due to a haze phenomenon, thereby causing a deflection in the path of the light exiting from the display screen. And the haze difference can exist at different positions of the display screen, so that obvious visual difference exists in the display process of the display screen.
For example, when the display device is a touch display device, the display screen 20 has a touch layer 210 correspondingly. Currently, the touch electrode of the touch layer 210 is mostly formed by using nano silver wires, so as to adapt to a flexible touch display device. However, due to the physical characteristics of the nano silver wire, the formed nano silver wire touch electrode has a certain haze, so that a haze difference exists between a part of the display screen corresponding to the nano silver wire touch electrode and a part of the display screen not corresponding to the nano silver wire touch electrode (namely, a part between adjacent nano silver wire touch electrodes).
Accordingly, the light path adjusting device 10 can be used to adjust the light path of the light emitted from the display screen 20, which is equivalent to the use of the light path adjusting device 10 to realize the haze compensation of the display screen 20, so as to improve the display uniformity of the display device.
Specifically, the display screen 20 has a display area, and the display area can emit light to form a display image. The light path adjusting device 10 has a light path adjusting region corresponding to the display region of the display screen 20, so that the light emitted from the display region of the display screen 20 further passes through the light path adjusting region of the light path adjusting device 10. It should be appreciated that fig. 4 is a schematic view schematically showing a configuration in which one of the light path adjustment regions performs light path adjustment for a part of the display region at a corresponding position.
Further, the optical path adjusting device 10 is provided with a signal receiving port (not shown), and the display screen 20 is provided with a signal output port. When the optical path adjusting device is applied to the display screen 20, the signal receiving port of the optical path adjusting device 10 is connected to the signal output port of the display screen 20 for receiving the haze parameter signal from the display screen 20, and also power is supplied to the optical path adjusting device 10.
Specifically, a haze measuring instrument may be used to detect a haze parameter of the display screen 20 at a predetermined position, and input the obtained haze parameter to the display screen 20, and then a signal output port of the display screen 20 may be used to transmit the haze parameter to the optical path adjusting device 10, so that the optical path adjusting device 10 may correspondingly control a driving condition of an adjusting unit at a corresponding position according to the haze parameter, so that more precise haze compensation may be implemented by using the optical path adjusting device 10 based on different degrees of haze phenomena of the display screen 20 at different positions.
For example, in the first embodiment, the plurality of adjustment units in the optical path adjustment device 10 may be arranged in an array, and the first electrode and the second electrode of each adjustment unit are respectively led out by the first signal line and the second signal line in the column direction and the row direction. Accordingly, after the light path adjusting device 10 receives the haze parameter signal, an electric signal can be supplied to the corresponding first signal line and second signal line according to the haze parameter signal, thereby selecting an adjusting unit to be driven.
Further, the display 20 further includes a light emitting layer 220, where the light emitting layer 220 is disposed below the touch layer 210 and is away from the light emitting surface of the display 20 relative to the touch layer 210, and the light emitting layer 220 is configured to emit light of a corresponding color to form a display screen. Wherein the light emitting layer 220 may further include an organic electroluminescent structure (OLED).
The following is a description of the light direction of the display device in this embodiment during the display process with reference to fig. 4.
First, the light emitting layer 220 emits light;
then, the light passes through the touch layer 210; at this time, the portion of the touch layer 210 corresponding to the touch electrode has a certain haze, and the haze of the portion of the touch layer 210 corresponding to the touch electrode is greater than the haze of the portion of the touch layer 210 not corresponding to the touch electrode (i.e., the haze difference exists between the touch electrode and the gap between the touch electrodes), so that a portion of light beam deflects when passing through the touch electrode of the touch layer 210, and the light beam passing through the touch electrode deflect to different degrees;
then, the light after the light path deflection is further emitted from the display screen 20 and is incident on the light path adjustment device 10; the optical path adjusting device 10 receives the haze parameters at each predetermined position of the display screen 20 through the signal receiving port, and can adjust and control the adjusting units at the corresponding positions according to the haze parameters (that is, apply voltages to the first electrode and the second electrode of the adjusting unit corresponding to the area needing to perform optical path adjustment, so as to mechanically deform the piezoelectric film); therefore, when light is incident on the light path adjustment device 10 and passes through the light path adjustment device 10, the outgoing light passing through the light path adjustment device 10 can be deflected in the light path relative to the incident light incident on the light path adjustment device 10; at this time, the light path of the emergent light after deflection can be presented as parallel light, so that the visual perception of a user on a display picture can be improved.
In summary, the optical path adjusting device provided by the invention uses the first electrode and the second electrode to generate an electric field, so that the piezoelectric film in the electric field is deformed, and thus, the light passing through the deformed piezoelectric film can be deflected in the optical path. When the light path adjusting device is arranged on the display screen, the light path of emergent light of the display screen can be adjusted, so that the problem that the light path of the display screen deviates from an ideal path due to the haze phenomenon is solved, the haze compensation of the display screen is realized by utilizing the light path adjusting device, and the display effect of the display device can be effectively improved.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (8)
1. A display device, comprising:
the display screen is used for displaying pictures and is provided with a touch layer, the touch layer comprises touch electrodes formed by adopting nano silver wires, and the haze of the part, corresponding to the touch electrodes, in the touch layer is larger than that of the part, not corresponding to the touch electrodes; the method comprises the steps of,
the light path adjusting device is arranged on the light emitting surface of the display screen and is used for adjusting the path of light rays emitted from the display screen so as to enable at least the light rays passing through the part corresponding to the touch electrode to deflect in a light path and to be parallel light, and the haze of the part corresponding to the touch electrode is reduced;
the light path adjusting device is provided with a plurality of adjusting units, the adjusting units are used for adjusting light paths of corresponding positions in a one-to-one correspondence mode, and the adjusting units comprise: the first electrode, the second electrode and the piezoelectric film that is arranged between first electrode and the second electrode, the piezoelectric film takes shape when the voltage is applied to first electrode and the second electrode, is used for making the light that passes through the adjustment unit take on light path deflection and appear as parallel light.
2. The display device according to claim 1, wherein the piezoelectric film has an entrance surface and an exit surface, and light enters the piezoelectric film from the entrance surface and exits from the exit surface; and the light incident surface and the light emergent surface of the piezoelectric film are in a non-parallel state when a voltage is applied to the first electrode and the second electrode.
3. The display device of claim 1, wherein the material of the piezoelectric film comprises polyvinylidene fluoride.
4. The display device according to claim 1, wherein the adjustment unit further includes: and a compensation circuit for compensating a voltage applied between the first electrode and the second electrode.
5. The display device according to claim 1, wherein a plurality of the adjustment units are arranged in an array, first electrodes of the plurality of adjustment units arranged on the same column are connected to the same first signal line, and second electrodes of the plurality of adjustment units arranged on the same row are connected to the same second signal line.
6. The display device according to claim 1, wherein a signal output port is provided on the display screen, and a signal receiving port is provided on the optical path adjusting device, the signal receiving port of the optical path adjusting device being connected to the signal output port of the display screen when the optical path adjusting device is provided on the display screen.
7. The display device of claim 6, wherein the signal transmission port of the display screen is configured to transmit a haze parameter signal of the display screen at a predetermined position for the optical path adjusting device, and the optical path adjusting device adjusts the adjusting unit corresponding to the predetermined position according to the received haze parameter signal.
8. The display device of claim 1, wherein the display screen further comprises a light emitting layer disposed on a side of the touch layer away from the light emitting surface of the display screen.
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| CN111766674B (en) * | 2019-04-02 | 2024-03-19 | 扬明光学股份有限公司 | Optical path adjusting mechanism and manufacturing method thereof |
| CN110764252B (en) * | 2019-10-28 | 2022-02-25 | 京东方科技集团股份有限公司 | Transparent panel and naked eye three-dimensional display device |
| US20210373210A1 (en) * | 2020-05-28 | 2021-12-02 | Apple Inc. | Tunable diffractive optics |
| CN116774425A (en) * | 2023-05-24 | 2023-09-19 | 上海大学 | Adjustable super-surface light beam deflection device, application method and preparation method thereof |
| CN116791028A (en) * | 2023-06-28 | 2023-09-22 | 惠科股份有限公司 | Mask plate assembly and evaporation device |
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Application publication date: 20181120 Assignee: BAZHOU YUNGU ELECTRONIC TECHNOLOGY Co.,Ltd.|KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER Co.,Ltd.|KUNSHAN GO-VISIONOX OPTO-ELECTRONICS Co.,Ltd. Assignor: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd. Contract record no.: X2019990000155 Denomination of invention: Light path adjusting device and display device License type: Common License Record date: 20191030 |
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Effective date of registration: 20191210 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Applicant after: Guangzhou Guoxian Technology Co.,Ltd. Address before: 065500 Hebei Langfang County Guan emerging industry demonstration area Applicant before: YUNGU (GU'AN) TECHNOLOGY Co.,Ltd. |
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