CN107632445B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN107632445B CN107632445B CN201711041952.8A CN201711041952A CN107632445B CN 107632445 B CN107632445 B CN 107632445B CN 201711041952 A CN201711041952 A CN 201711041952A CN 107632445 B CN107632445 B CN 107632445B
- Authority
- CN
- China
- Prior art keywords
- substrate
- liquid crystal
- pixel
- display panel
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a display panel and a display device, which belong to the technical field of display and comprise: at least two liquid crystal cells including a first liquid crystal cell and a second liquid crystal cell arranged in a stacked arrangement; the first liquid crystal box comprises a first substrate, a second substrate and a first polymer network liquid crystal layer clamped between the first substrate and the second substrate; the second liquid crystal cell comprises a third substrate, a fourth substrate and a second polymer network liquid crystal layer clamped between the third substrate and the fourth substrate; the first liquid crystal box is in a transparent state under the action of no electric field, and displays a first gray scale under the action of the electric field; the second liquid crystal cell is in a transparent state under the action of no electric field, and displays a second gray scale under the action of the electric field. Compared with the prior art, the number of gray scales which can be displayed by the display panel is increased, and the display quality is improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display device provided in the prior art.
The display device shown in fig. 1 includes a first substrate 01, a second substrate 02, and a liquid crystal layer 03 interposed between the first substrate 01 and the second substrate 02. The first substrate 01 includes a first substrate 011 and a first electrode 012, and the second substrate 02 includes a second substrate 021 and a second electrode 022.
In the display device shown in fig. 1, the material of the Liquid crystal layer 03 is Polymer Network Liquid Crystals (PNLC). In the liquid crystal layer 03, liquid crystals are distributed in a three-dimensional network of polymers to form a continuous network of channels.
In the display device shown in fig. 1, light outside the display device can be transmitted through the display device without applying an electric field, and thus the display device displays a transparent state. In the case of applying an electric field, light outside the display device is strongly scattered after entering the display device, and a portion of the light outside the display device cannot pass through the display device, so that the display device displays a semi-transparent state.
Referring to fig. 2, fig. 2 is a schematic view of a V-T curve of the display device shown in fig. 1. In fig. 2, an abscissa V represents a voltage applied to the display device, and T represents a transmittance of the display device. As can be seen from fig. 2, in the interval where the voltage is less than V1, the transmittance of the display device is T1, and at this time, the display device displays a transparent state. In a region where the voltage is higher than V2, the transmittance of the display device is T2, and at this time, the display device displays a translucent state. In the interval of the voltage V1 to V2, the V-T curve of the display device is very steep, and the transmittance changes rapidly with the increase of the voltage. Therefore, the display device displays different gray scales between the transmittance of T1 and the transmittance of T2, and the voltage is difficult to control. Therefore, the display device provided by the prior art generally has only two gray levels, namely, a transparent state and a semi-transparent state.
The display device provided by the prior art is difficult to realize the display of a plurality of gray scales.
Disclosure of Invention
In view of the foregoing, the present invention provides a display panel and a display device.
The present invention provides a display panel, comprising: at least two liquid crystal cells including a first liquid crystal cell and a second liquid crystal cell arranged in a stacked arrangement; the first liquid crystal box comprises a first substrate, a second substrate and a first polymer network liquid crystal layer clamped between the first substrate and the second substrate; the second liquid crystal cell comprises a third substrate, a fourth substrate and a second polymer network liquid crystal layer clamped between the third substrate and the fourth substrate; the first liquid crystal box is in a transparent state under the action of no electric field, and displays a first gray scale under the action of the electric field; the second liquid crystal cell is in a transparent state under the action of no electric field, and displays a second gray scale under the action of the electric field.
In some alternative embodiments, the second substrate is multiplexed into a third substrate.
In some alternative embodiments, the first substrate includes a first pixel electrode, the second substrate includes a common electrode, and the fourth substrate includes a second pixel electrode.
In some alternative embodiments, the first substrate includes a first pixel electrode, and a side of the second substrate adjacent to the first substrate includes a first common electrode; the fourth substrate includes a second pixel electrode, and a side of the second substrate adjacent to the fourth substrate includes a second common electrode.
In some alternative embodiments, the first substrate includes a first pixel electrode, and a side of the second substrate adjacent to the first substrate includes a first common electrode; the fourth substrate includes a second common electrode, and a side of the second substrate adjacent to the fourth substrate includes a second pixel electrode.
In some alternative embodiments, the first and second liquid crystal cells differ in cell thickness; the first gray scale is different from the second gray scale.
In some alternative embodiments, the display panel includes a plurality of pixels, the pixels including n sub-pixels of different sizes; the sub-pixels comprise a first sub-pixel and a second sub-pixel; the first sub-pixel is arranged in the first liquid crystal box, and the second sub-pixel is arranged in the second liquid crystal box; in the direction vertical to the first substrate, the first sub-pixel is superposed with the second sub-pixel; the equivalent gray scale of the pixel has 4nAnd (4) respectively.
In some optional embodiments, the display panel includes X liquid crystal cells, which are a first liquid crystal cell, a second liquid crystal cell, and an xth liquid crystal cell; the Xth liquid crystal box comprises an Xth polymer network liquid crystal layer; wherein X is more than or equal to 3.
In some optional embodiments, the first substrate, the second substrate, the third substrate, and the fourth substrate are all glass substrates.
In some optional embodiments, the first substrate, the second substrate, the third substrate, and the fourth substrate are all flexible substrates.
The invention also provides a display device which comprises the display panel provided by the invention.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
the display panel provided by the invention comprises at least two liquid crystal boxes, namely a first liquid crystal box and a second liquid crystal box. The first liquid crystal box comprises a first polymer network liquid crystal layer, and can display a transparent state and a first gray scale. The second liquid crystal cell includes a second polymer network liquid crystal layer, and the second liquid crystal cell may display a transparent state and a second gray scale. When the first liquid crystal box displays the first gray scale and the second liquid crystal box displays the second gray scale, the first liquid crystal box and the second liquid crystal box can display the third gray scale by overlapping because the first liquid crystal box and the second liquid crystal box are stacked. Therefore, the display panel provided by the embodiment can at least realize the transparent state, the first gray scale, the second gray scale and the third gray scale. Compared with the prior art, the number of gray scales which can be displayed by the display panel is increased, and the display quality is improved.
The display device provided by the invention has the beneficial effects of the display panel provided by the invention, and the description is omitted.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a display device provided in the prior art;
FIG. 2 is a schematic view of a V-T curve of the display device shown in FIG. 1;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
FIG. 10 is a schematic plan view of the display panel provided in FIG. 9;
FIG. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a display device according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention. The present embodiment provides a display panel including: at least two liquid crystal cells comprising a first liquid crystal cell 10 and a second liquid crystal cell 20 arranged in a stack; the first liquid crystal cell 10 includes a first substrate 11, a second substrate 12, and a first polymer network liquid crystal layer 13 interposed between the first substrate 11 and the second substrate 12; the second liquid crystal cell 20 includes a third substrate 21, a fourth substrate 22, and a second polymer network liquid crystal layer 23 interposed between the third substrate 21 and the fourth substrate 22; the first liquid crystal box 10 is in a transparent state without an electric field, and displays a first gray scale under the action of the electric field; the second liquid crystal cell 20 is in a transparent state without an electric field, and displays a second gray scale under the action of the electric field.
The display panel provided by the embodiment includes a first liquid crystal cell 10 and a second liquid crystal cell 20, wherein the first liquid crystal cell 10 can work independently to realize a display function; the second liquid crystal cell 20 can operate independently to realize a display function.
The first Liquid crystal cell 10 includes a first Polymer Network Liquid crystal layer 13, and a material of the first Polymer Network Liquid crystal layer 13 includes Polymer Network Liquid Crystals (PNLC). In the liquid crystal layer 03, liquid crystals are distributed in a three-dimensional network of polymers to form a continuous network of channels.
The second Liquid crystal cell 20 includes a second Polymer Network Liquid crystal layer 23, and the material of the second Polymer Network Liquid crystal layer 23 includes Polymer Network Liquid Crystals (PNLC).
Both the first liquid crystal cell 10 and the second liquid crystal cell 20 use the polymer network liquid crystal layer, so that when the first liquid crystal cell 10 does not have an electric field, light outside the first liquid crystal cell 10 can penetrate through the first liquid crystal cell 10, and thus the first liquid crystal cell 10 shows a transparent state, and under the action of the electric field, the light of the first liquid crystal cell 10 is strongly scattered after entering the first liquid crystal cell 10, and part of light outside the first liquid crystal cell 10 cannot penetrate through the first liquid crystal cell 10, so that the first liquid crystal cell 10 shows a translucent state, and the translucent state of the first liquid crystal cell 10 is a first gray scale. Similarly, the second liquid crystal cell 20 is in a transparent state without an electric field, and displays a semitransparent state under the electric field, and the semitransparent state of the second liquid crystal cell 20 is a second gray scale.
Since the first liquid crystal cell 10 and the second liquid crystal cell 20 are stacked, the display panel provided by the present embodiment can display at least four gray scales.
When the first liquid crystal cell 10 and the second liquid crystal cell 20 do not apply an electric field, the first liquid crystal cell 10 and the second liquid crystal cell 20 are both in a transparent state, and the display panel displays the transparent state.
When the first liquid crystal cell 10 applies an electric field and the second liquid crystal cell 20 does not apply an electric field, the display panel displays a first gray scale.
When the first liquid crystal cell 10 does not apply an electric field and the second liquid crystal cell 20 applies an electric field, the display panel displays a second gray scale.
When the first liquid crystal cell 10 and the second liquid crystal cell 20 both apply an electric field, the first gray scale displayed by the first liquid crystal cell 10 and the second gray scale displayed by the second liquid crystal cell 20 are superimposed to obtain a third gray scale, and the display panel displays the third gray scale.
Therefore, the display panel provided by the embodiment can at least realize the transparent state, the first gray scale, the second gray scale and the third gray scale. Compared with the prior art, the number of gray scales which can be displayed by the display panel is increased, and the display quality is improved.
Optionally, with reference to fig. 3, the first substrate 11, the second substrate 12, the third substrate 21, and the fourth substrate 22 are all glass substrates, that is, the first substrate 11, the second substrate 12, the third substrate 21, and the fourth substrate 22 are all made of glass. The glass has high transparency, so that the display panel provided by the embodiment can realize a transparent display effect.
Alternatively, with continued reference to fig. 3, the first substrate 11, the second substrate 12, the third substrate 21, and the fourth substrate 22 are all flexible substrates, for example, the first substrate 11, the second substrate 12, the third substrate 21, and the fourth substrate 22 may be made of resin materials. The display panel provided by the embodiment is flexible and easy to bend, and can be used for manufacturing a wearable display device.
In some optional embodiments, please refer to fig. 4, and fig. 4 is a schematic structural diagram of another display panel provided in the embodiments of the present invention. In this embodiment, the second substrate 12 is multiplexed as a third substrate. In the display panel provided in this embodiment, the first liquid crystal cell 10 and the second liquid crystal cell 20 share the same substrate, that is, the first liquid crystal cell 10 includes a first substrate 11, a second substrate 12, and a first polymer network liquid crystal layer 13 sandwiched between the first substrate 11 and the second substrate 12; the second liquid crystal cell 20 includes a second substrate 12, a fourth substrate 22, and a second polymer network liquid crystal layer 23 interposed between the second substrate 12 and the fourth substrate 22. The display panel provided by the embodiment can reduce the cost of the display panel and is beneficial to the lightening and thinning of the display panel.
In some optional embodiments, the display panel provided in each embodiment of the present invention is provided with a pixel electrode and a common electrode, and voltages are applied to the pixel electrode and the common electrode respectively, so as to form an electric field between the pixel electrode and the common electrode and control the deflection of liquid crystal molecules in the polymer network liquid crystal layer, thereby controlling the transmittance of light outside the display panel through the display panel, and enabling the display panel to display different gray scales.
In the display panel provided by each embodiment of the present invention, there are various arrangement modes of the pixel electrode and the common electrode. The present invention is provided herein as three embodiments by way of example only to specifically explain the arrangement of the pixel electrode and the common electrode.
Referring to fig. 5, a first arrangement of a pixel electrode and a common electrode is shown, and fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention. On the basis of the display panel shown in the embodiment of fig. 4, the present embodiment provides a display panel in which the first substrate 12 includes the first pixel electrode 14, the second substrate 12 includes the common electrode 15, and the fourth substrate 22 includes the second pixel electrode 24. In the display panel provided in this embodiment, voltages may be applied to the first pixel electrode 14 and the common electrode 15, respectively, to form a first electric field therebetween, so as to control the liquid crystal molecules in the first polymer network liquid crystal layer 13 to deflect. The second pixel electrode 24 and the common electrode 15 may respectively apply voltages to form a second electric field therebetween, and may control the liquid crystal molecules in the second polymer network liquid crystal layer 23 to deflect. In the display panel provided in this embodiment, the first liquid crystal cell 10 and the second liquid crystal cell 20 share the common electrode 15. Optionally, in the display panel provided in this embodiment, the second substrate 12 is a flexible substrate, for example, the material of the second substrate 12 is resin. In general, the flexible substrate has a small thickness, and the common electrode 15 is disposed in the second substrate 12 to simultaneously provide an electric field to the first liquid crystal cell 10 and the second liquid crystal cell 20. If the second substrate 12 is thick, the electric field of the common electrode 15 may be affected, and the display effect of the display panel may be affected.
Referring to fig. 6, fig. 6 is a schematic structural diagram of another display panel according to a second arrangement of the pixel electrode and the common electrode. On the basis of the display panel shown in the embodiment of fig. 4, in the display panel provided in this embodiment, the first substrate 11 includes the first pixel electrode 14, and the side of the second substrate 12 close to the first substrate 11 includes the first common electrode 15; the fourth substrate 22 includes a second pixel electrode 24, and a side of the second substrate 12 adjacent to the fourth substrate 22 includes a second common electrode 25. In the display panel provided in this embodiment, voltages may be applied to the first pixel electrode 14 and the first common electrode 15, respectively, to form a first electric field therebetween, so as to control the liquid crystal molecules in the first polymer network liquid crystal layer 13 to deflect. The second pixel electrode 24 and the second common electrode 25 may respectively apply voltages, and form a second electric field therebetween, which may control the liquid crystal molecules in the second polymer network liquid crystal layer 23 to deflect. Optionally, in the display panel provided in this embodiment, the second substrate 12 is hard, for example, the second substrate 12 may be made of glass. The first common electrode 15 and the second common electrode 25 are respectively disposed on two sides of the second substrate 12 to respectively provide electric fields for the first liquid crystal cell 10 and the second liquid crystal cell, and the signal intensity of the first electric field and the second electric field is relatively good.
In some optional embodiments, please refer to fig. 7 for a third arrangement manner of the pixel electrode and the common electrode, and fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention. On the basis of the display panel shown in the embodiment of fig. 4, in the display panel provided in this embodiment, the first substrate 11 includes the first pixel electrode 14, and the side of the second substrate 12 close to the first substrate 11 includes the first common electrode 15; the fourth substrate 22 includes a second common electrode 25, and a side of the second substrate 12 adjacent to the fourth substrate 22 includes a second pixel electrode 24. In the display panel provided in this embodiment, voltages may be applied to the first pixel electrode 14 and the first common electrode 15, respectively, to form a first electric field therebetween, so as to control the liquid crystal molecules in the first polymer network liquid crystal layer 13 to deflect. The second pixel electrode 24 and the second common electrode 25 may respectively apply voltages, and form a second electric field therebetween, which may control the liquid crystal molecules in the second polymer network liquid crystal layer 23 to deflect. Optionally, in the display panel provided in this embodiment, the second substrate 12 is hard, for example, the second substrate 12 may be made of glass. The first common electrode 15 and the second common electrode 25 are respectively disposed on two sides of the second substrate 12 to respectively provide electric fields for the first liquid crystal cell 10 and the second liquid crystal cell, and the signal intensity of the first electric field and the second electric field is relatively good.
It should be noted that fig. 5, fig. 6 and fig. 7 only exemplarily provide three embodiments to specifically illustrate the arrangement of the pixel electrode and the common electrode, and should not be construed as limiting the present invention.
In some alternative embodiments, on the basis of the display panel provided in any of the embodiments of the present invention, the first liquid crystal cell and the second liquid crystal cell have different cell thicknesses; the first gray scale is different from the second gray scale. Specifically, please refer to fig. 8, fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention. The present embodiment is described herein only on the basis of the display panel provided in the embodiment of fig. 5. In the display panel shown in fig. 8, the cell thickness of the first liquid crystal cell is d1, specifically, the cell thickness of the first liquid crystal cell 10 refers to the thickness of the first polymer network liquid crystal layer 13; the thickness of the second liquid crystal cell 20 is d2, and specifically, the cell thickness of the second liquid crystal cell 20 refers to the thickness of the second polymer network liquid crystal layer 23. Alternatively, d1 > d 2; alternatively, d1 < d 2. Since the first liquid crystal cell 10 and the second liquid crystal cell 20 have different cell thicknesses, when light from the outside of the display panel passes through the first liquid crystal cell 10 and the second liquid crystal cell 20 under the condition that the same voltage is applied to the first liquid crystal cell 10 and the second liquid crystal cell 20, the degree of scattering of the light is different, and thus, gray scales displayed by the first liquid crystal cell 10 and the second liquid crystal cell 20 are different. The display panel provided by the embodiment can display at least four different gray scales, which are respectively a transparent state, a first gray scale, a second gray scale and a third gray scale. Compared with the prior art, the number of gray scales which can be displayed by the display panel is increased, and the display quality is improved.
In some optional embodiments, the display panel provided in the embodiments of the present invention may display more than four gray levels. Specifically, the display panel comprises a plurality of pixels, and the pixels comprise n sub-pixels with different sizes; the sub-pixel comprises a first sub-pixelA pixel and a second sub-pixel; the first sub-pixel is arranged in the first liquid crystal box, and the second sub-pixel is arranged in the second liquid crystal box; in the direction vertical to the first substrate, the first sub-pixel is superposed with the second sub-pixel; the equivalent gray scale of the pixel has 4nAnd (4) respectively. Referring to fig. 9 and 10, fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and fig. 10 is a schematic plan structural diagram of the display panel provided in fig. 9. The present embodiment is described only on the basis of the display panel provided in fig. 6. The present embodiment is described herein by taking n as 2 as an example. In the display panel shown in fig. 9 and 10, the display panel includes a plurality of pixels 30, and the pixels 30 include 2 sub-pixels, i.e., a sub-pixel 301 and a sub-pixel 302. Each sub-pixel includes a first sub-pixel and a second sub-pixel, and this embodiment only takes the sub-pixel 301 as an example for explanation. The sub-pixel 301 includes a first sub-pixel 3011 and a second sub-pixel 3012; the first sub-pixel 3011 is disposed in the first liquid crystal cell 10, and the second sub-pixel 3012 is disposed in the second liquid crystal cell 20; in a direction x perpendicular to the first substrate 11, the first sub-pixel 3011 and the second sub-pixel 3012 coincide; the equivalent gray scale of the pixel 30 has 42And (4) respectively.
In this embodiment, each sub-pixel is formed by overlapping a first sub-pixel in the first liquid crystal cell and a second sub-pixel in the second liquid crystal cell. The first sub-pixel and the second sub-pixel have the same shape and size, and in a direction x perpendicular to the first substrate 11, the first sub-pixel and the second sub-pixel are completely overlapped. And superposing the gray scale displayed by the first sub-pixel and the gray scale displayed by the second sub-pixel to obtain the gray scale of the sub-pixels. In this embodiment, the sub-pixels can display four different gray scales, which are respectively a transparent state, a first gray scale, a second gray scale and a third gray scale.
In this embodiment, the pixel 30 includes 2 sub-pixels, the gray scales displayed by the sub-pixels 301 and 302 are mixed to obtain the equivalent gray scale of the pixel 30, and the equivalent gray scale of the pixel 30 has 42And (4) respectively.
Specifically, the sub-pixel 301 displays a transparent state, and the sub-pixel 302 displays a transparent state, and the pixel 30 displays a first equivalent gray scale.
The sub-pixel 301 displays the transparent state, and the sub-pixel 302 displays the first gray level, and the pixel 30 displays the second equivalent gray level.
The sub-pixel 301 displays the transparent state, the sub-pixel 302 displays the second gray scale, and the pixel 30 displays the third equivalent gray scale.
The sub-pixel 301 displays the transparent state, the sub-pixel 302 displays the third gray level, and the pixel 30 displays the fourth equivalent gray level.
The sub-pixel 301 displays the first gray level and the sub-pixel 302 displays the transparent state, and the pixel 30 displays the fifth equivalent gray level.
The sub-pixel 301 displays the first gray scale, the sub-pixel 302 displays the first gray scale, and the pixel 30 displays the sixth equivalent gray scale.
The sub-pixel 301 displays the first gray scale, the sub-pixel 302 displays the second gray scale, and the pixel 30 displays the seventh equivalent gray scale.
The sub-pixel 301 displays the first gray scale, the sub-pixel 302 displays the third gray scale, and the pixel 30 displays the eighth equivalent gray scale.
The sub-pixel 301 displays the second gray scale and the sub-pixel 302 displays the transparent state, and the pixel 30 displays the ninth equivalent gray scale.
The sub-pixel 301 displays the second gray scale, the sub-pixel 302 displays the first gray scale, and the pixel 30 displays the tenth equivalent gray scale.
The sub-pixel 301 displays the second gray scale, and the sub-pixel 302 displays the second gray scale, and the pixel 30 displays the eleventh equivalent gray scale.
The sub-pixel 301 displays the second gray scale, the sub-pixel 302 displays the third gray scale, and the pixel 30 displays the twelfth equivalent gray scale.
The sub-pixel 301 displays the third gray level and the sub-pixel 302 displays the transparent state, and the pixel 30 displays the thirteenth equivalent gray level.
The sub-pixel 301 displays the third gray scale, the sub-pixel 302 displays the first gray scale, and the pixel 30 displays the fourteenth equivalent gray scale.
The sub-pixel 301 displays the third gray scale, the sub-pixel 302 displays the second gray scale, and the pixel 30 displays the fifteenth equivalent gray scale.
The sub-pixel 301 displays the third gray scale, the sub-pixel 302 displays the third gray scale, and the pixel 30 displays the sixteenth equivalent gray scale.
It is understood that, in the embodiment, due to the different sizes of the sub-pixels 301 and 302, the gray scales displayed by the sub-pixels 301 and 302 are interchanged, and the obtained mixed gray scale is different. Specifically, the sub-pixel 301 displays a transparent state, the sub-pixel 302 displays a first gray scale, and the pixel 30 displays a second equivalent gray scale; the sub-pixel 301 displays the first gray scale, the sub-pixel 302 displays the transparent state, and the pixel 30 displays the fifth equivalent gray scale, wherein the second equivalent gray scale and the fifth equivalent gray scale are different gray scales.
In the display panel shown in fig. 9 and 10, n is 2, but it should be understood that n may be any positive integer greater than 2, and the larger the value of n, the larger the number of equivalent gray levels displayed by the pixel 30, and the higher the display quality of the display panel.
In some alternative embodiments, the display panel provided by the embodiments of the present invention may further include other liquid crystal cells in addition to the first liquid crystal cell 10 and the second liquid crystal cell 20. The display panel comprises X liquid crystal boxes, namely a first liquid crystal box, a second liquid crystal box and an X liquid crystal box; the Xth liquid crystal box comprises an Xth polymer network liquid crystal layer; wherein X is more than or equal to 3. Specifically, referring to fig. 11, fig. 11 is a schematic structural diagram of another display panel according to an embodiment of the present invention. In the present embodiment, only X ═ 3 is taken as an example for description, and the display panel includes 3 liquid crystal cells, namely, the first liquid crystal cell 10, the second liquid crystal cell 20, and the third liquid crystal cell 30. Wherein the material of the liquid crystal layer of the third liquid crystal cell 30 also comprises a polymer network liquid crystal. Specifically, the third liquid crystal cell 30 includes a fifth substrate 31, a sixth substrate 32, and a third polymer network liquid crystal layer 31 interposed between the fifth substrate 31 and the sixth substrate 32. It will be appreciated that the third liquid crystal cell 30 is in a transparent state in the absence of an electric field and exhibits a semi-transparent state in the presence of an electric field; in other words, the third liquid crystal cell 30 can display two gray levels. Alternatively, the first, second and third liquid crystal cells 10, 20, 30 may have different cell thicknesses. In the display panel provided by the embodiment, the display panel comprises at least three liquid crystal boxes, so that the number of gray scales which can be displayed by the display panel is further increased, and the display quality is improved.
The invention also provides a display device comprising the display panel provided by any one of the above embodiments of the invention. Referring to fig. 12, fig. 12 is a schematic view of a display device according to an embodiment of the invention. Fig. 12 provides a display device 100 including a display panel 100A according to any of the above embodiments of the present invention. The embodiment of fig. 12 is only an example of a mobile phone, and the display device 100 is described, it is understood that the display device provided in the embodiment of the present invention may be other display devices with a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in each of the above embodiments, which is not repeated herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention have at least the following technical effects:
the display panel provided by the invention comprises at least two liquid crystal boxes, namely a first liquid crystal box and a second liquid crystal box. The first liquid crystal box comprises a first polymer network liquid crystal layer, and can display a transparent state and a first gray scale. The second liquid crystal cell includes a second polymer network liquid crystal layer, and the second liquid crystal cell may display a transparent state and a second gray scale. When the first liquid crystal box displays the first gray scale and the second liquid crystal box displays the second gray scale, the first liquid crystal box and the second liquid crystal box can display the third gray scale by overlapping because the first liquid crystal box and the second liquid crystal box are stacked. Therefore, the display panel provided by the embodiment can at least realize the transparent state, the first gray scale, the second gray scale and the third gray scale. Compared with the prior art, the number of gray scales which can be displayed by the display panel is increased, and the display quality is improved.
The display device provided by the invention has the beneficial effects of the display panel provided by the invention, and the description is omitted.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A display panel, comprising:
x liquid crystal boxes from the first liquid crystal box to the second liquid crystal box; the first liquid crystal box comprises a first substrate, a second substrate and a first polymer network liquid crystal layer clamped between the first substrate and the second substrate;
the second liquid crystal cell comprises a third substrate, a fourth substrate and a second polymer network liquid crystal layer clamped between the third substrate and the fourth substrate;
the first liquid crystal box is in a transparent state under the action of no electric field, and displays a first gray scale under the action of the electric field;
the second liquid crystal cell is in a transparent state under the action of no electric field, and displays a second gray scale under the action of the electric field;
the first liquid crystal cell and the second liquid crystal cell have different cell thicknesses; the first gray scale is different from the second gray scale;
the Xth liquid crystal cell comprises an Xth polymer network liquid crystal layer; wherein X is more than or equal to 3;
the display panel comprises a plurality of pixels, and the pixels comprise n sub-pixels with different sizes;
the sub-pixels comprise a first sub-pixel and a second sub-pixel; the first sub-pixel is disposed in the first liquid crystal cell, and the second sub-pixel is disposed in the second liquid crystal cell; the first sub-pixel is coincident with the second sub-pixel in a direction perpendicular to the first substrate;
the equivalent gray scale of the pixel is 4nAnd (4) respectively.
2. The display panel according to claim 1,
the second substrate is multiplexed as the third substrate.
3. The display panel according to claim 2,
the first substrate includes a first pixel electrode, the second substrate includes a common electrode, and the fourth substrate includes a second pixel electrode.
4. The display panel according to claim 2,
the first substrate comprises a first pixel electrode, and one side of the second substrate, which is close to the first substrate, comprises a first common electrode;
the fourth substrate comprises a second pixel electrode, and one side of the second substrate, which is close to the fourth substrate, comprises a second common electrode.
5. The display panel according to claim 2,
the first substrate comprises a first pixel electrode, and one side of the second substrate, which is close to the first substrate, comprises a first common electrode;
the fourth substrate comprises a second common electrode, and one side of the second substrate, which is close to the fourth substrate, comprises a second pixel electrode.
6. The display panel according to claim 1,
the first substrate, the second substrate, the third substrate and the fourth substrate are all glass substrates.
7. The display panel according to claim 1,
the first substrate, the second substrate, the third substrate and the fourth substrate are all flexible substrates.
8. A display device comprising the display panel according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041952.8A CN107632445B (en) | 2017-10-30 | 2017-10-30 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041952.8A CN107632445B (en) | 2017-10-30 | 2017-10-30 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107632445A CN107632445A (en) | 2018-01-26 |
| CN107632445B true CN107632445B (en) | 2020-11-27 |
Family
ID=61105883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711041952.8A Active CN107632445B (en) | 2017-10-30 | 2017-10-30 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107632445B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027970B (en) * | 2018-06-21 | 2020-08-04 | 南京中电熊猫平板显示科技有限公司 | Intelligent high beam lamp control device and control method thereof |
| CN109491125A (en) * | 2018-12-21 | 2019-03-19 | 深圳市华星光电半导体显示技术有限公司 | A kind of transparent display panel and transparent display |
| CN110286533B (en) * | 2019-05-31 | 2021-11-19 | 上海天马微电子有限公司 | Display device |
| CN110297344B (en) | 2019-05-31 | 2022-03-29 | 上海天马微电子有限公司 | Display panel and display device |
| CN111025795B (en) * | 2019-12-06 | 2021-03-23 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display device |
| CN110928057B (en) * | 2019-12-12 | 2020-12-08 | Tcl华星光电技术有限公司 | Liquid crystal display panel |
| CN114200698B (en) * | 2021-12-10 | 2023-06-27 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN117111351B (en) * | 2023-10-23 | 2024-01-30 | 上海隆昇光电新材料有限公司 | PDLC dimming film with four-state transition and assembly thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100029633A (en) * | 2008-09-08 | 2010-03-17 | 삼성전자주식회사 | Display apparatus having an active transflective device |
| TWI476484B (en) * | 2012-07-11 | 2015-03-11 | Ligxtal Technology Inc | Sturcture of liquid crystal lens and sturcture of electrical controling liquid crystal glasses thereof |
| KR20150139424A (en) * | 2014-05-29 | 2015-12-11 | 엘지디스플레이 주식회사 | Light shield apparatus, method of fabricating the light shield apparatus, and transparent display device including the light shield appratus |
| CN105867011B (en) * | 2016-06-27 | 2019-02-05 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN106154661B (en) * | 2016-09-21 | 2019-05-14 | 京东方科技集团股份有限公司 | A kind of transparent display panel and preparation method thereof, transparent display |
| CN106444200B (en) * | 2016-11-24 | 2020-05-05 | 京东方科技集团股份有限公司 | Transparent display device and display method |
| CN106782382A (en) * | 2016-12-28 | 2017-05-31 | 武汉华星光电技术有限公司 | A kind of display panel and display device |
-
2017
- 2017-10-30 CN CN201711041952.8A patent/CN107632445B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107632445A (en) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107632445B (en) | Display panel and display device | |
| US11243438B2 (en) | Liquid crystal display panel | |
| US10120220B2 (en) | Foldable liquid crystal display device and manufacturing method thereof | |
| CN101046573B (en) | Liquid crystal panel, liquid crystal display device and terminal device | |
| CN110456538B (en) | Display device capable of realizing visual angle switching and display method and manufacturing method thereof | |
| CN102768443B (en) | Liquid crystal display panel and display device applied thereby | |
| US20160357073A1 (en) | Pixel structure, array substrate and display device | |
| CN102998860B (en) | Pixel electrode structure, array base palte, display panels and driving method | |
| CN103676360B (en) | A kind of display panels and display device | |
| CN102819153B (en) | Color film substrate, liquid crystal panel and liquid crystal display device | |
| JP2015230484A (en) | Transmission type display device and display method for the same | |
| CN102455545A (en) | Liquid crystal display device | |
| WO2017156875A1 (en) | Liquid crystal lens and display device | |
| US9632610B2 (en) | 3D touch display device, its manufacturing method and driving method | |
| US20150234238A1 (en) | Liquid crystal display panel and display apparatus using the same | |
| CN109270752B (en) | Display panel and display device | |
| CN110928066B (en) | Display panel and display device | |
| US20150077684A1 (en) | Liquid crystal display panel and liquid crystal display apparatus | |
| CN103197464A (en) | Liquid crystal display panel and liquid crystal display | |
| CN102681272A (en) | Liquid crystal display panel and display device utilizing same | |
| CN102707519A (en) | Liquid crystal display panel and display device applied by liquid crystal display panel | |
| CN205301766U (en) | Liquid crystal disply device at changeable visual angle | |
| US11347107B2 (en) | Array substrate and method for manufacturing the same, and display device | |
| CN102629058A (en) | Array substrate, liquid crystal display device and orientation friction method | |
| CN104090406B (en) | Display panel and colored filter substrate thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |