CN214122636U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN214122636U CN214122636U CN202120116328.5U CN202120116328U CN214122636U CN 214122636 U CN214122636 U CN 214122636U CN 202120116328 U CN202120116328 U CN 202120116328U CN 214122636 U CN214122636 U CN 214122636U
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Abstract
The application provides a display panel and display device, wherein, display panel includes upper substrate, infrabasal plate, liquid crystal layer and first electrode layer, and first electrode layer includes that the multiunit is used for the drive first pixel electrode and the first common electrode that the liquid crystal layer deflected, first pixel electrode with first common electrode is used for the input to treat that the first voltage that shows the image correspondence is in order to produce first electric field, and the height setting difference of first pixel electrode in the first electrode layer and first common electrode is predetermine the height or the same height of predetermineeing to raise the first electric field that first pixel electrode and first common electrode produced, and then improve the dead zone, improve display panel's light penetration rate and display quality.
Description
Technical Field
The application belongs to the technical field of display panels, and particularly relates to a display panel and a display device.
Background
An in-plane switching mode liquid crystal display (IPS-LCD) includes an upper substrate, a lower substrate, and a plurality of liquid crystal molecules filled between the upper substrate and the lower substrate. The electrodes are provided in an alternating (i.e., comb-like) fashion along one substrate (e.g., the lower substrate) such that during operation, an electric field extends between corresponding pairs of electrodes.
Due to the convergence of the electric field lines at the electrodes, the region of liquid crystal material above the electrodes is called dead zone (dead zones), which is relatively uncontrolled, resulting in a relatively reduced light penetration rate.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a display panel, and aims to solve the problem that the traditional IPS display panel has an uncontrolled dead zone to reduce the light penetration rate.
A first aspect of an embodiment of the present application provides a display panel, including:
an upper substrate;
the lower substrate is arranged opposite to the upper substrate;
a liquid crystal layer disposed between the upper substrate and the lower substrate;
the first electrode layer is arranged on the lower substrate and comprises a plurality of groups of first pixel electrodes and first common electrodes, the first pixel electrodes and the first common electrodes are used for driving the liquid crystal layer to deflect, and the first pixel electrodes and the first common electrodes are used for inputting first voltages corresponding to images to be displayed so as to generate a first electric field;
the heights of the first pixel electrodes are set to be first preset heights, the heights of the first common electrodes are set to be second preset heights, and the first preset heights are not equal to the second preset heights;
or the heights of the plurality of first pixel electrodes and the plurality of first common electrodes are set to be a third preset height.
In one embodiment, the first pixel electrodes and the first common electrodes are alternately arranged in sequence, and at least one of the first pixel electrodes and the first common electrodes adjacent to each other is a stepped electrode.
In one embodiment, the display panel further includes:
the second electrode layer comprises a plurality of groups of second pixel electrodes and second common electrodes, the second pixel electrodes and the second common electrodes are used for driving the liquid crystal layer to deflect, and the second pixel electrodes and the second common electrodes are used for inputting second voltages corresponding to images to be displayed so as to generate a second electric field;
an insulating layer disposed between the first electrode layer and the second electrode layer;
the heights of the second pixel electrodes are set to be fourth preset heights, the heights of the second common electrodes are set to be fifth preset heights, and the fourth preset heights are not equal to the fifth preset heights;
or the heights of the plurality of second pixel electrodes and the plurality of second common electrodes are set to be a sixth preset height.
In one embodiment, the first pixel electrodes and the first common electrodes are strip electrodes, and a plurality of the first pixel electrodes and a plurality of the first common electrodes are sequentially arranged at intervals;
the second pixel electrodes and the second common electrodes are strip electrodes, and the plurality of second pixel electrodes and the plurality of second common electrodes are sequentially arranged at intervals.
In one embodiment, the strip-shaped electrodes are N-type oxide semiconductor-indium tin oxide electrodes.
In one embodiment, the upper substrate further includes a first alignment layer, the lower substrate further includes a second alignment layer, and the alignment directions of the first alignment layer and the second alignment layer are the same.
In one embodiment, the display panel further includes a first polarizing plate and a second polarizing plate;
the first polaroid is arranged on one side, away from the upper substrate, of the lower substrate, and the second polaroid is arranged on one side, away from the lower substrate, of the upper substrate.
In one embodiment, the lower substrate is further provided with a thin film transistor, a second substrate base plate, a gate line, a data line and a common electrode line, the gate line, the data line and the common electrode line are arranged on the second substrate base plate, the thin film transistor is respectively and correspondingly connected with the gate line, the data line and the pixel electrode, and the common electrode is connected with the common electrode line.
In one embodiment, each of the first pixel electrodes faces one of the second pixel electrodes, and each of the first common electrodes faces one of the second common electrodes.
A second aspect of embodiments of the present application provides a display device including the display panel as described above.
Compared with the prior art, the embodiment of the application has the advantages that: the display panel is internally provided with a first electrode layer, the heights of a first pixel electrode and a first common electrode in the first electrode layer are different from preset heights or the same preset height, so that a first electric field generated by the first pixel electrode and the first common electrode is raised, liquid crystal molecules of the liquid crystal layer are driven by the first electric field to deflect, dead zones are improved, and the light penetration rate and the display quality of the display panel are improved.
Drawings
Fig. 1 is a schematic view of a first structure of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic waveform diagram of the display panel shown in FIG. 1;
fig. 3 is a schematic view of a second structure of a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a third display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a fourth structure of a display panel according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a fifth display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram illustrating a sixth structure of a display panel according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram illustrating a seventh structure of a display panel according to an embodiment of the present disclosure;
fig. 9 is an eighth structural schematic diagram of a display panel according to an embodiment of the present application;
fig. 10 is a schematic diagram illustrating a ninth structure of a display panel according to an embodiment of the present application;
fig. 11 is a schematic diagram of a ninth structure of a display panel according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
A first aspect of an embodiment of the present application provides a display panel.
As shown in fig. 1, fig. 1 is a first schematic structural diagram of a display panel provided in the embodiment of the present application, in the embodiment, the display panel includes:
an upper substrate 10;
a lower substrate 20, the lower substrate 20 and the upper substrate 10 being disposed opposite to each other;
a liquid crystal layer 30, the liquid crystal layer 30 being disposed between the upper substrate 10 and the lower substrate 20;
the first electrode layer 40 is disposed on the lower substrate 20, the first electrode layer 40 includes a plurality of sets of first pixel electrodes 41 and first common electrodes 42 for driving the liquid crystal layer 30 to deflect, and the first pixel electrodes 41 and the first common electrodes 42 are used for inputting a first voltage corresponding to an image to be displayed to generate a first electric field;
the heights of the first pixel electrodes 41 are set to be first preset heights, the heights of the first common electrodes 42 are set to be second preset heights, and the first preset heights are not equal to the second preset heights;
alternatively, the heights of the plurality of first pixel electrodes 41 and the plurality of first common electrodes 42 are all set to a third preset height.
In this embodiment, the upper substrate 20, the first electrode layer 40, the liquid crystal layer 30 and the upper substrate 10 are sequentially disposed, the liquid crystal layer 30 is distributed with liquid crystal molecules, the liquid crystal molecules are deflected under the action of an electric field, as shown in fig. 2, the liquid crystal molecules are deflected in different directions according to the polarity of the liquid crystal molecules, when the liquid crystal molecules are positive liquid crystal molecules, the long axes of the liquid crystal molecules are deflected in a direction parallel to the electric lines of force under the action of an external electric field, when the liquid crystal molecules are negative liquid crystal molecules, the long axes of the liquid crystal molecules are deflected in a direction perpendicular to the electric lines of force under the action of an external electric field, and meanwhile, the deflection degree of the liquid crystal molecules is related to the electric field strength.
The height of at least one of the first pixel electrode 41 and the first common electrode 42 is set to a preset height, that is, the height of one of the first pixel electrode 41 and the first common electrode 42 can be raised, as shown in fig. 3 or 4, or as shown in fig. 5, the heights of the two types of electrodes can be raised simultaneously, the first electric field is raised by changing the heights of the first pixel electrode 41 and the first common electrode 42, and the first electric field generated by electrifying the first pixel electrode 41 and the first common electrode 42 acts on the liquid crystal molecules at the original dead zone position, so that the liquid crystal molecules at the original dead zone position are controllable, the dead zone is improved, and the light transmittance and the display quality of the display panel are improved.
The liquid crystal layer 30 includes a plurality of sub-pixel regions, each set of pixel electrodes and common electrodes for driving the liquid crystal layer 30 to deflect corresponds to one sub-pixel region, and the first voltages input by the sets of pixel electrodes and common electrodes can enable the display panel to display an image to be displayed.
The upper substrate 10 and the lower substrate 20 may be transparent substrates, such as glass substrates, and in one embodiment, the upper substrate 10 is a color filter substrate and the lower substrate 20 is an array substrate.
In one embodiment, as shown in fig. 1, the first pixel electrodes 41 and the first common electrodes 42 are alternately arranged in sequence, as shown in fig. 1 and 2, and at least one of the adjacent first pixel electrodes 41 and the first common electrodes 42 is a step-shaped electrode.
The shape and distribution of the electrodes can be selected according to the required electric field intensity, and in one embodiment, as shown in fig. 1, the first pixel electrodes 41 and the first common electrodes 42 are alternately arranged in sequence, and the adjacent first pixel electrodes 41 and the first common electrodes 42 generate a plurality of first electric fields, which act on the liquid crystal molecules of the liquid crystal layer 30 to drive the liquid crystal molecules to deflect. At least one of the adjacent first pixel electrode 41 and the first common electrode 42 is a step-shaped electrode, and an electric field is generated between tops of the step-shaped electrodes, so that the driving capability of liquid crystal molecules is improved.
In one embodiment, as shown in fig. 6 to 8, the display panel further includes:
the second electrode layer 50, the second electrode layer 50 includes a plurality of sets of second pixel electrodes 51 and second common electrodes 52 for driving the liquid crystal layer 30 to deflect, and the second pixel electrodes 51 and the second common electrodes 52 are used for inputting a second voltage corresponding to an image to be displayed to generate a second electric field;
an insulating layer 60 disposed between the first electrode layer 40 and the second electrode layer 50;
the heights of the plurality of second pixel electrodes 51 are set to be fourth preset heights, the heights of the plurality of second common electrodes 52 are set to be fifth preset heights, and the fourth preset heights are not equal to the fifth preset heights;
alternatively, the heights of the plurality of second pixel electrodes 51 and the plurality of second common electrodes 52 are all set to a sixth preset height.
In this embodiment, the insulating layer 60 is used to raise the second electrode layer 50 to a position with a preset height, a first voltage is input to the adjacent first pixel electrode 41 and the first common electrode 42 of the first electrode layer 40 to generate a first electric field, and a second voltage is input to the second pixel electrode 51 and the second common electrode 52 of the second electrode layer 50 to generate a second electric field, so as to improve the electric field strength of the current display panel, and the first electric field and the second electric field are superposed and jointly act on liquid crystal molecules in the liquid crystal layer 30 in the display panel, so that the originally existing dead zone is controllable, the dead zone is eliminated, and the light penetration rate is improved.
The heights of the first pixel electrode 41 and the second pixel electrode 51 may be set to a first preset height and a second preset height, or set to a third preset height, and the heights of the second pixel electrode 51 and the second common electrode 52 may be set to a fourth preset height and a fifth preset height, or set to a sixth preset height, and the heights of the first preset height, the second preset height, the third preset height, the fourth preset height, the fifth preset height and the sixth preset height may be set according to the total electric field requirement, which is not limited herein.
Meanwhile, the electrodes of the first electrode layer 40 and the second electrode layer 50 may be correspondingly opposite or staggered, and in one embodiment, each of the first common electrodes 42 is opposite to one of the second common electrodes 52, so that two electric fields are superposed and act on the liquid crystal layer 30.
The second pixel electrode 51 and the second common electrode 52 may be provided in a stepped shape, or in other shapes.
Each of the first electrode layer 40 and the second electrode layer 50 may be made of a light-opaque metal structure, and in one embodiment, each electrode is an N-type oxide semiconductor-Indium Tin Oxide (ITO) electrode.
In one embodiment, as shown in fig. 1 and 10, the first pixel electrodes 41 and the first common electrodes 42 are stripe electrodes, and the plurality of first pixel electrodes 41 and the plurality of first common electrodes 42 are sequentially arranged at intervals;
the second pixel electrodes 51 and the second common electrodes 52 are stripe electrodes, and the plurality of second pixel electrodes 51 and the plurality of second common electrodes 52 are alternately arranged in sequence.
In this embodiment, the pixel electrodes and the common electrodes of the electrode layers are arranged on the same layer in a stripe structure and are insulated from each other, the first pixel electrode 41 and the first common electrode 42 adjacent to each other generate a plurality of first electric fields, the second pixel electrode 51 and the second common electrode 52 adjacent to each other generate a plurality of second electric fields, and the first electric fields and the second electric fields are superposed and then act on the liquid crystal molecules of the liquid crystal layer 30 together, so as to drive the liquid crystal molecules to deflect.
In one embodiment, as shown in fig. 9, the upper substrate 10 further includes a first alignment layer 71, the upper substrate 20 further includes a second alignment layer 72, the alignment directions of the first alignment layer 71 and the second alignment layer 72 are the same, the alignment layers are directly in contact with the liquid crystal layer 30, the liquid crystal molecules are controlled to be aligned in a certain direction and angle, and the material of the alignment layers may be polyimide (abbreviated as PI).
With reference to fig. 9, in an embodiment, the display panel further includes a first polarizer 81 and a second polarizer 82;
the first polarizer 81 is disposed on a side of the upper substrate 20 away from the upper substrate 10, the second polarizer 82 is disposed on a side of the upper substrate 10 away from the upper substrate 20, polarization axes of the first polarizer 81 and the second polarizer 82 are perpendicular to each other, or polarization axes of the first polarizer 81 and the second polarizer 82 are parallel to each other.
The upper substrate 10 and the upper substrate 20 may further be provided with a color film photoresist to realize a color film filtering function.
As shown in fig. 10, when the display panel does not include the second electrode layer 50 and the insulating layer 60, in order to implement the power-on control of the first electrode layer 40, in one embodiment, the upper substrate 20 is further provided with a thin film transistor 11, a second substrate, a gate line 12 and a data line 13 provided on the second substrate, the thin film transistor 11 respectively connecting the gate line 12 and the data line 13, the gate line 12 is used for connecting a gate driving module and accessing a scanning signal, the data line 13 is used for connecting a source driving module and accessing a data signal, each thin film transistor 11 is turned on or turned off under the control of the scanning signal and correspondingly accesses the data signal to a pixel electrode, each first pixel electrode 41 can be connected to the same or different thin film transistors 11, the upper substrate 20 is further provided with a common electrode line 14, and the first common electrode 42 is connected with the common electrode line 14 and accesses the common electrode voltage.
As shown in fig. 11, when the display panel includes the second electrode layer 50 and the insulating layer 60, in order to implement the power control of the first electrode layer 40 and the second electrode layer 50, the first pixel electrode 41 and the second pixel electrode 51 may be connected to the same or different thin film transistors 11, the common electrode line 14 is further disposed on the upper substrate 20, and the first common electrode 42 and the second common electrode 52 are respectively connected to the common electrode line 14 and access the same common electrode voltage.
The application also provides a display device, the display device comprises a display panel, the specific structure of the display panel refers to the above embodiments, and the display device adopts all technical schemes of all the above embodiments, so that all the beneficial effects brought by the technical schemes of the above embodiments are at least achieved, and are not repeated one by one.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A display panel, comprising:
an upper substrate;
the lower substrate is arranged opposite to the upper substrate;
a liquid crystal layer disposed between the upper substrate and the lower substrate;
the first electrode layer is arranged on the lower substrate and comprises a plurality of groups of first pixel electrodes and first common electrodes, the first pixel electrodes and the first common electrodes are used for driving the liquid crystal layer to deflect, and the first pixel electrodes and the first common electrodes are used for inputting first voltages corresponding to images to be displayed so as to generate a first electric field;
the heights of the first pixel electrodes are set to be first preset heights, the heights of the first common electrodes are set to be second preset heights, and the first preset heights are not equal to the second preset heights;
or the heights of the plurality of first pixel electrodes and the plurality of first common electrodes are set to be a third preset height.
2. The display panel according to claim 1, wherein the first pixel electrodes and the first common electrodes are alternately arranged in sequence, and at least one of the first pixel electrodes and the first common electrodes adjacent to each other is a step-shaped electrode.
3. The display panel of claim 1, wherein the display panel further comprises:
the second electrode layer comprises a plurality of groups of second pixel electrodes and second common electrodes, the second pixel electrodes and the second common electrodes are used for driving the liquid crystal layer to deflect, and the second pixel electrodes and the second common electrodes are used for inputting second voltages corresponding to images to be displayed so as to generate a second electric field;
an insulating layer disposed between the first electrode layer and the second electrode layer;
the heights of the second pixel electrodes are set to be fourth preset heights, the heights of the second common electrodes are set to be fifth preset heights, and the fourth preset heights are not equal to the fifth preset heights;
or the heights of the plurality of second pixel electrodes and the plurality of second common electrodes are set to be a sixth preset height.
4. The display panel according to claim 3, wherein the first pixel electrodes and the first common electrodes are stripe electrodes, and a plurality of the first pixel electrodes and a plurality of the first common electrodes are alternately arranged in sequence;
the second pixel electrodes and the second common electrodes are strip electrodes, and the plurality of second pixel electrodes and the plurality of second common electrodes are sequentially arranged at intervals.
5. The display panel according to claim 4, wherein the stripe electrodes are N-type oxide semiconductor-indium tin oxide electrodes.
6. The display panel of claim 1, wherein the upper substrate further comprises a first alignment layer, the lower substrate further comprises a second alignment layer, and the alignment directions of the first alignment layer and the second alignment layer are the same.
7. The display panel of claim 6, wherein the display panel further comprises a first polarizer and a second polarizer;
the first polaroid is arranged on one side, away from the upper substrate, of the lower substrate, and the second polaroid is arranged on one side, away from the lower substrate, of the upper substrate.
8. The display panel according to claim 1, wherein the lower substrate is further provided with a thin film transistor, a second substrate, a gate line, a data line and a common electrode line on the second substrate, the thin film transistor is connected to the gate line, the data line and the pixel electrode, respectively, and the common electrode is connected to the common electrode line.
9. The display panel of claim 3, wherein each of the first pixel electrodes faces one of the second pixel electrodes, and each of the first common electrodes faces one of the second common electrodes.
10. A display device comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120116328.5U CN214122636U (en) | 2021-01-15 | 2021-01-15 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120116328.5U CN214122636U (en) | 2021-01-15 | 2021-01-15 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214122636U true CN214122636U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120116328.5U Active CN214122636U (en) | 2021-01-15 | 2021-01-15 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214122636U (en) |
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2021
- 2021-01-15 CN CN202120116328.5U patent/CN214122636U/en active Active
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