CN116047746A - Electrowetting film layer, backlight module and display device - Google Patents
Electrowetting film layer, backlight module and display device Download PDFInfo
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- CN116047746A CN116047746A CN202310086047.3A CN202310086047A CN116047746A CN 116047746 A CN116047746 A CN 116047746A CN 202310086047 A CN202310086047 A CN 202310086047A CN 116047746 A CN116047746 A CN 116047746A
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- substrate
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- electrowetting
- storage cavity
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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
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Abstract
The application discloses an electrowetting film layer, a backlight module and a display device, wherein the electrowetting film layer comprises a first substrate, a second substrate, a plurality of dimming units, a surface electrode and a plurality of electrode groups; the second substrate is arranged opposite to the first substrate; the plurality of dimming units are positioned between the first substrate and the second substrate; each dimming unit comprises a storage area and an opening area, the storage area is provided with a storage cavity, and the storage cavity stores color matching liquid; the surface electrode is arranged on the surface of the first substrate, which is close to the second substrate; the plurality of electrode groups are arranged on the surface of the second substrate, which is close to the first substrate, and the plurality of electrode groups are arranged in one-to-one correspondence with the plurality of dimming units; the surface electrode, the electrode group and the driving circuit are matched to control the quantity of the color matching liquid in the storage cavity moving to the opening area and the hydrophilic state of the color matching liquid, and the color matching liquid in the opening area is irradiated by the light source to emit or absorb light, so that the color gamut is adjusted.
Description
Technical Field
The application relates to the technical field of display, in particular to an electrowetting film layer, a backlight module and a display device.
Background
Liquid crystal displays typically have color gamut adjustment functions, typically by means of a liquid crystal drive voltage chop or by means of adjusting the backlight current, which are typically only small but not large.
Disclosure of Invention
The application provides an electrowetting rete, backlight unit and display device, provides a new colour gamut adjustment mode.
In order to solve the technical problem, the first technical scheme provided by the application is as follows: an electrowetting film layer is provided and used for a backlight module, and comprises a first substrate, a second substrate, a plurality of dimming units, a surface electrode and a plurality of electrode groups; the second substrate is arranged opposite to the first substrate; the dimming units are positioned between the first substrate and the second substrate; each dimming unit comprises a storage area and an opening area, wherein the storage area is provided with a storage cavity, and the storage cavity stores color matching liquid; the surface electrode is arranged on the surface of the first substrate, which is close to the second substrate; the electrode groups are arranged on the surface, close to the first substrate, of the second substrate; the electrode groups are arranged in one-to-one correspondence with the dimming units; the surface electrode, the electrode group and the driving circuit are matched to control the quantity of the color matching liquid in the storage cavity moving to the opening area and the hydrophilic state of the color matching liquid.
In an embodiment, the electrode group includes a first strip electrode and a second strip electrode, where the first strip electrode is disposed corresponding to the storage cavity, and the second strip electrode is disposed corresponding to the opening area.
In one embodiment, the electrode further comprises a third strip electrode; the light adjusting unit further comprises a buffer area, the opening area is communicated with the storage cavity through the buffer area, and the third strip-shaped electrode is correspondingly arranged with the buffer area.
In an embodiment, the opening area, the buffer area, and the storage area are sequentially arranged side by side, and the second strip electrode, the third strip electrode, and the first strip electrode are sequentially arranged side by side.
In an embodiment, the width of the first strip electrode is smaller than the width of the second strip electrode, the width of the third strip electrode is smaller than the width of the first strip electrode, and the first strip electrode, the second strip electrode and the third strip electrode are arranged in a coplanar manner.
In an embodiment, the storage device further includes a plurality of opaque shielding blocks, the shielding blocks are disposed on a surface of the second substrate far away from the first substrate, and the shielding blocks cover the storage cavity and the buffer area.
In an embodiment, the storage device further comprises a plurality of opaque shielding blocks, wherein the shielding blocks are arranged on the surface, away from the first substrate, of the second substrate, and the shielding blocks cover the storage cavity.
In an embodiment, the surface electrode is provided with a first hydrophobic layer near the surface of the second substrate, the surfaces of the electrode groups near the first substrate are provided with a second hydrophobic layer, and two ends of the cavity wall of the storage cavity are respectively contacted with the first hydrophobic layer and the second hydrophobic layer.
In order to solve the technical problem, the second technical scheme provided by the application is as follows: providing a backlight module, comprising a back plate, a light guide plate and an electrowetting film layer; the light guide plate is arranged on one side of the backboard; the electrowetting film layer is any one of the electrowetting film layers, and is arranged on the surface of the light guide plate far away from the back plate or on the side surface of the light guide plate.
In order to solve the technical problem, a third technical scheme provided by the application is as follows: a display device is provided, which comprises a display panel and a backlight module; the display panel includes a plurality of pixels and a driving circuit; each pixel includes a plurality of sub-pixels; the backlight module is the backlight module and is arranged on one side of the display panel; wherein, each dimming unit of the backlight module corresponds to one sub-pixel or one pixel; the driving circuit outputs different voltages to at least part of the dimming units.
The beneficial effects of this application: compared with the prior art, the application discloses an electrowetting film layer, a backlight module and a display device, wherein the electrowetting film layer comprises a first substrate, a second substrate, a plurality of dimming units, a surface electrode and a plurality of electrode groups; the second substrate is arranged opposite to the first substrate; the plurality of dimming units are positioned between the first substrate and the second substrate; each dimming unit comprises a storage area and an opening area, the storage area is provided with a storage cavity, and the storage cavity stores color matching liquid; the surface electrode is arranged on the surface of the first substrate, which is close to the second substrate; the plurality of electrode groups are arranged on the surface of the second substrate, which is close to the first substrate, and the plurality of electrode groups are arranged in one-to-one correspondence with the plurality of dimming units; the surface electrode, the electrode group and the driving circuit are matched to control the quantity of the color matching liquid in the storage cavity moving to the opening area and the hydrophilic state of the color matching liquid, and the color matching liquid in the opening area is irradiated by the light source to emit or absorb light, so that the color gamut is adjusted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first embodiment of an electrowetting film layer provided herein;
FIG. 2 is a schematic view of the structure of the plurality of electrode sets shown in FIG. 1;
FIG. 3 is a schematic view of a second embodiment of an electrowetting film layer provided herein;
FIG. 4 is a schematic view of the structure of the plurality of electrode sets shown in FIG. 3;
fig. 5 is a schematic structural diagram of a first embodiment of a backlight module provided in the present application;
fig. 6 is a schematic structural diagram of a second embodiment of a backlight module provided in the present application;
fig. 7 is a schematic structural diagram of a third embodiment of a backlight module provided in the present application;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, interfaces, techniques, etc., in order to provide a thorough understanding of the present application.
The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may include at least one such feature, either explicitly or implicitly. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement conditions, etc. between the components under a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The present application is described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a first embodiment of an electrowetting film layer provided in the present application, and fig. 2 is a schematic structural diagram of a plurality of electrode groups shown in fig. 1.
The electrowetting film layer 11 includes a first substrate 111, a second substrate 112, a plurality of dimming cells 113, a face electrode 114, and a plurality of electrode groups 115.
The second substrate 112 is disposed opposite to the first substrate 111. Optionally, the first substrate 111 and the second substrate 112 are transparent substrates; such as glass, plastic. Alternatively, the first substrate 111 is disposed in parallel with the second substrate 112.
The plurality of dimming cells 113 are located between the first substrate 111 and the second substrate 112. Each dimming cell 113 includes a memory region 1131 and an opening region 1132. The storage region 1131 is provided with a storage chamber 1131a, and the storage chamber 1131a stores the toner liquid therein. The toning liquid includes at least one of quantum dots or absorbing dyes, fluorescent materials, that is, the toning liquid is composed of a material dispersion liquid capable of realizing high color gamut display. Optionally, the cavity walls of storage cavity 1131a have hydrophobic properties. Optionally, both ends of the cavity wall of the storage cavity 1131a are provided with hydrophobic layers. Optionally, the wall of the storage cavity 1131a is electronic paper.
The surface electrode 114 is arranged on the surface of the first substrate 111, which is close to the second substrate 112; the surface electrode 114 is a transparent electrode. The plurality of electrode groups 115 are disposed on the surface of the second substrate 112 near the first substrate 111, and the plurality of electrode groups 115 are disposed in one-to-one correspondence with the plurality of dimming units 113. The surface electrode 114 and the electrode group 115 control the amount of the toner liquid in the storage chamber 1131a moving to the opening region 1132 and the hydrophilic state of the toner liquid in cooperation with the driving circuit. The color matching liquid in the opening area 1132 is irradiated by a light source 14 (the light source 14 is the light source 14 of the backlight module 1 described later), and emits or absorbs light, so as to realize adjustment of color gamut; for example, the color matching liquid in the opening region 1132 can emit RG light with a narrow peak after being irradiated by the light source, so as to improve the color gamut of the display device. The surface electrode 114 and the electrode groups 115 are connected to a driving circuit (the driving circuit is located outside the electrowetting film layer 11) through wires, and the magnitude of the voltage applied to each electrode group 115 can be controlled through a passive driving mode, so that the amount of the toner moving to the opening area 1132 and the hydrophilic state of the toner are controlled.
The principle of color gamut adjustment by the color matching liquid is to use the hydrophobic and hydrophilic properties of the liquid when the liquid is powered or not powered to realize movement of the liquid or control the contact areas of the liquid and the first and second substrates 111 and 112. By applying an electrical signal to the face electrode 114, different electrical signals are applied to different electrode sets 115, controlling the movement of the toning liquid from the storage cavity 1131a to the open area 1132 and the amount of movement, or controlling the movement of the toning liquid from the open area 1132 to the liquid storage cavity 1131a and the amount of movement, or controlling the hydrophilic state of the toning liquid within the storage cavity 1131a and/or the open area 1132. When the color gamut adjustment is not needed, the color matching liquid is stored in the storage cavity 1131a, and the opening area 1132 is free of the color matching liquid, that is, the electrowetting film layer 11 provided by the application can also serve as a switch for the color gamut adjustment.
The electrode group 115 includes a first stripe electrode 1151 and a second stripe electrode 1152, the first stripe electrode 1151 is disposed corresponding to the storage cavity 1131a, and the second stripe electrode 1152 is disposed corresponding to the opening region 1132. The first stripe electrodes 1151 are transparent electrodes, and the second stripe electrodes 1152 are transparent electrodes. The hydrophilic state of the toner in the storage cavity 1131a and the amount of the toner flowing to the opening region 1132 are controlled by applying an electric signal to the first stripe electrode 1151 by the driving circuit. The second strip electrode 1152 is applied with an electric signal by the driving circuit, and the hydrophilic state of the color-adjusting liquid in the opening region 1132 is controlled, so that the light of the light source 14 can uniformly pass through the color-adjusting liquid. It will be appreciated that since each electrode set 115 is independently controlled, adjustment of the color gamut of the sub-regions can be achieved, with the size of the sub-regions being designed as desired.
Optionally, the width of the first strip electrode 1151 is smaller than the width of the second strip electrode 1152, and the first strip electrode 1151 and the second strip electrode 1152 are disposed coplanar.
Optionally, the storage area 1131 is disposed side by side with the opening area 1132, and the first strip electrode 1151 is disposed side by side with the second strip electrode 1152.
Optionally, the first strip electrode 1151 is a first rectangle, the second strip electrode 1152 is a second rectangle, the length of the first rectangle is the same as the length of the second rectangle, and the width of the first rectangle is smaller than the width of the second rectangle. Illustratively, the first and second strip electrodes 1151, 1152 are aligned and disposed side by side along the width direction thereof.
Optionally, the plurality of electrode sets 115 are arranged coplanar.
Optionally, the plurality of dimming units 113 are arranged in an array; the plurality of dimming cells 113 are arranged in a square array, and are arranged in a plurality of rows and a plurality of columns, for example. Accordingly, the plurality of electrode groups 115 are arranged in an array in the same manner as the dimming cells 113.
With continued reference to fig. 1, the electrowetting film layer 11 further includes a first hydrophobic layer 116, a second hydrophobic layer 117, and a plurality of opaque masking blocks 118.
The surface electrode 114 is provided with a first hydrophobic layer 116 near the surface of the second substrate 112, the surface of the plurality of electrode groups 115 near the first substrate 111 is provided with a second hydrophobic layer 117, and two ends of the cavity wall of the storage cavity 1131a are respectively contacted with the first hydrophobic layer 116 and the second hydrophobic layer 117. The toning liquid is not in contact with the face electrode 114 and the electrode group 115, and the toning liquid is in contact with the first hydrophobic layer 116 and/or the second hydrophobic layer 117.
The shielding block 118 is disposed on the surface of the second substrate 112 far away from the first substrate 111, and the shielding block 118 covers the storage cavity 1131a, so as to prevent the light emitted from the light source 14 irradiated onto the color matching liquid in the storage cavity 1131a from affecting the normal display effect when the display device does not need to perform color gamut adjustment. Optionally, the occlusion block 118 is black.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic structural view of a second embodiment of an electrowetting film layer provided in the present application, and fig. 4 is a schematic structural view of a plurality of electrode groups shown in fig. 3.
The structure of the second embodiment of the electrowetting film layer 11 is substantially the same as that of the first embodiment of the electrowetting film layer 11, except that: each dimming cell 113 further comprises a buffer 1133, and each electrode group 115 further comprises a third strip electrode 1153; specifically, the opening region 1132 is communicated with the storage cavity 1131a through the buffer region 1133, and the third strip electrode 1153 is disposed corresponding to the buffer region 1133.
By arranging the buffer area 1133, the color matching liquid in the storage cavity 1131a of the storage area 1131 is transported to the opening area 1132 in a point-to-point dividing way in the buffer area 1133 so as to control the amount of the color matching liquid in the opening area 1132, thereby realizing the control of the color gamut adjusting amplitude and further realizing better color matching effect. The buffer 1133 is controlled to divide the amount of the toner and the hydrophilic state of the toner by applying an electric signal to the third strip electrode 1153 through the driving circuit.
Optionally, the opening area 1132, the buffer 1133, and the storage area 1131 are sequentially arranged side by side, and the second strip electrode 1152, the third strip electrode 1153, and the first strip electrode 1152 are sequentially arranged side by side.
Optionally, the width of the first stripe electrode 1151 is equal to the width of the second stripe electrode 1152, the width of the third stripe electrode 1153 is smaller than the width of the first stripe electrode 1151, and the first stripe electrode 1151, the second stripe electrode 1152 and the third stripe electrode 1153 are coplanar.
Optionally, the first strip electrode 1151 is a first rectangle, the second strip electrode 1152 is a second rectangle, the length of the first rectangle is the same as the length of the second rectangle, and the width of the first rectangle is smaller than the width of the second rectangle. The third strip electrode 1153 has a third rectangular shape, the third rectangular shape having a length smaller than the first rectangular shape, and a width smaller than the first rectangular shape. Illustratively, the first and second strip electrodes 1151 and 1152 are aligned and disposed side by side along the width direction thereof, and the third strip electrode 1153 is located between the first and second strip electrodes 1151 and 1152.
With continued reference to fig. 3, in the present embodiment, the shielding block 118 covers the storage cavity 1131a and the buffer 1133, so as to prevent the light emitted from the light source 14 onto the color matching liquid in the storage cavity 1131a and the buffer 1133 from affecting the normal display effect when the display device does not need to perform color gamut adjustment.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a first embodiment of a backlight module provided in the present application.
The backlight module 1 comprises an electrowetting film layer 11, a back plate 12, a light guide plate 13, a light source 14, a reflecting layer 15 and a backlight optical film layer 16. The light guide plate 13 is disposed on one side of the back plate 12. The reflective layer 15 is disposed between the back plate 12 and the light guide plate 13. The light source 14 is provided on the side surface of the light guide plate 13. The electrowetting film layer 11 is disposed on a side surface of the light guide plate 13, and the electrowetting film layer 11 is disposed between the light guide plate 13 and the light source 14. The backlight optical film layer 16 is arranged on the surface of the light guide plate 13 far away from the backboard 12; the backlight optical film layer 16 includes upper and lower diffusion sheets, prism sheets, and the like, as is specifically described in the prior art. By arranging the electrowetting film layer 11 on the side surface of the light guide plate 13 of the backlight module 1, the color gamut of the whole display device is regulated. It will be appreciated that the structure of the electrowetting film layer 11 may be referred to the description of any one of the above embodiments, and will not be repeated.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a second embodiment of a backlight module provided in the present application.
The backlight module 1 comprises an electrowetting film layer 11, a back plate 12, a light guide plate 13, a light source 14, a reflecting layer 15 and a backlight optical film layer 16. The light guide plate 13 is disposed on one side of the back plate 12. The reflective layer 15 is disposed between the back plate 12 and the light guide plate 13. The light source 14 is provided on the side surface of the light guide plate 13. The electrowetting film layer 11 is disposed on a surface of the light guide plate 13 away from the back plate 12. The backlight optical film layer 16 is arranged on the surface of the electrowetting film layer 11 far away from the backboard 12; the backlight optical film layer 16 includes upper and lower diffusion sheets, prism sheets, and the like, as is specifically described in the prior art. By arranging the electrowetting film layer 11 on the surface of the light guide plate 13 of the backlight module 1 far away from the back plate 12, the color gamut of the whole display device is regulated. In this embodiment, the setting positions of the electrowetting film layer 11 are controlled independently of each other in combination with the plurality of electrode groups 115 of the electrowetting film layer 11, so as to realize zoned color gamut adjustment. It will be appreciated that the structure of the electrowetting film layer 11 may be referred to the description of any one of the above embodiments, and will not be repeated.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a backlight module according to a third embodiment of the present application.
The backlight module 1 comprises an electrowetting film layer 11, a back plate 12, a light guide plate 13, a light source 14 and a backlight optical film layer 16. The light guide plate 13 is disposed on one side of the back plate 12. The light source 14 is disposed on the surface of the back plate 12 near the light guide plate 13. The electrowetting film layer 11 is disposed on a surface of the light guide plate 13 away from the back plate 12. The backlight optical film layer 16 is arranged on the surface of the electrowetting film layer 11 far away from the backboard 12; the backlight optical film layer 16 includes upper and lower diffusion sheets, prism sheets, and the like, as is specifically described in the prior art. By arranging the electrowetting film layer 11 on the surface of the light guide plate 13 of the backlight module 1 far away from the back plate 12, the color gamut of the whole display device is regulated. In this embodiment, the setting positions of the electrowetting film layer 11 are controlled independently of each other in combination with the plurality of electrode groups 115 of the electrowetting film layer 11, so as to realize zoned color gamut adjustment. It will be appreciated that the structure of the electrowetting film layer 11 may be referred to the description of any one of the above embodiments, and will not be repeated.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a display device according to an embodiment of the disclosure.
The display device comprises a backlight module 1 and a display panel 2. The backlight module 1 is disposed at one side of the display panel 2. The structure of the backlight module 1 can be referred to the description of any embodiment, and will not be repeated. The display panel 2 includes a plurality of pixels (not shown) and a driving circuit (not shown); each pixel includes a plurality of sub-pixels, for example, each pixel includes a red sub-pixel (R), a blue sub-pixel (B), and a green sub-pixel (G). When the electrowetting film layer 11 is disposed on the surface of the light guide plate 13 away from the substrate 12, each light modulation unit 113 of each backlight module 1 is disposed corresponding to one pixel or one sub-pixel, and the driving circuit outputs different voltages to at least part of the light modulation units 113, so as to realize the regulation of the regional color gamut on the basis of regulating the whole color gamut of the display device, and specifically design the regional size according to the requirement.
The foregoing is only the embodiments of the present application, and not the patent scope of the present application is limited by the foregoing description, but all equivalent structures or equivalent processes using the contents of the present application and the accompanying drawings, or directly or indirectly applied to other related technical fields, which are included in the patent protection scope of the present application.
Claims (10)
1. An electrowetting film layer for a backlight module, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
a plurality of dimming units located between the first substrate and the second substrate; each dimming unit comprises a storage area and an opening area, wherein the storage area is provided with a storage cavity, and the storage cavity stores color matching liquid;
the surface electrode is arranged on the surface of the first substrate, which is close to the second substrate;
the electrode groups are arranged on the surface of the second substrate, close to the first substrate; the electrode groups are arranged in one-to-one correspondence with the dimming units;
the surface electrode, the electrode group and the driving circuit are matched to control the quantity of the color matching liquid in the storage cavity moving to the opening area and the hydrophilic state of the color matching liquid.
2. The electrowetting film of claim 1, wherein the electrode group includes a first stripe-shaped electrode and a second stripe-shaped electrode, the first stripe-shaped electrode being disposed corresponding to the storage cavity, the second stripe-shaped electrode being disposed corresponding to the opening region.
3. The electrowetting film of claim 2, wherein said electrode further comprises a third strip electrode; the light adjusting unit further comprises a buffer area, the opening area is communicated with the storage cavity through the buffer area, and the third strip-shaped electrode is correspondingly arranged with the buffer area.
4. An electrowetting film according to claim 3, wherein said opening area, said buffer area, said storage area are arranged side by side in sequence, and said second strip electrode, said third strip electrode and said first strip electrode are arranged side by side in sequence.
5. The electrowetting film of claim 3, wherein the first strip electrode has a width less than a width of the second strip electrode, the third strip electrode has a width less than a width of the first strip electrode, and the first strip electrode, the second strip electrode, and the third strip electrode are disposed coplanar.
6. The electrowetting film of claim 3, further comprising a plurality of opaque masking blocks disposed on a surface of said second substrate remote from said first substrate, said masking blocks covering said storage cavities and said buffer areas.
7. The electrowetting film of claim 1, further comprising a plurality of opaque masking blocks disposed on a surface of the second substrate remote from the first substrate, the masking blocks covering the storage cavities.
8. The electrowetting film according to claim 1, wherein a first hydrophobic layer is provided on a surface of the surface electrode adjacent to the second substrate, a second hydrophobic layer is provided on a surface of the plurality of electrode groups adjacent to the first substrate, and two ends of a cavity wall of the storage cavity are respectively in contact with the first hydrophobic layer and the second hydrophobic layer.
9. A backlight module, comprising:
a back plate;
the light guide plate is arranged on one side of the backboard;
the electrowetting film of any one of claims 1 to 8, provided on a surface of the light guide plate remote from the back plate or provided on a side surface of the light guide plate.
10. A display device, comprising:
a display panel including a plurality of pixels and a driving circuit; each pixel includes a plurality of sub-pixels;
the backlight module of claim 9, disposed on one side of the display panel; wherein, each dimming unit of the backlight module corresponds to one sub-pixel or one pixel; the driving circuit outputs different voltages to at least part of the dimming units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310086047.3A CN116047746A (en) | 2023-01-18 | 2023-01-18 | Electrowetting film layer, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310086047.3A CN116047746A (en) | 2023-01-18 | 2023-01-18 | Electrowetting film layer, backlight module and display device |
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| Publication Number | Publication Date |
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| CN116047746A true CN116047746A (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310086047.3A Pending CN116047746A (en) | 2023-01-18 | 2023-01-18 | Electrowetting film layer, backlight module and display device |
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| CN (1) | CN116047746A (en) |
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- 2023-01-18 CN CN202310086047.3A patent/CN116047746A/en active Pending
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