CN209821552U - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
- Publication number
- CN209821552U CN209821552U CN201920622221.0U CN201920622221U CN209821552U CN 209821552 U CN209821552 U CN 209821552U CN 201920622221 U CN201920622221 U CN 201920622221U CN 209821552 U CN209821552 U CN 209821552U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- substrate
- crystal layer
- display panel
- crystal display
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 219
- 239000000758 substrate Substances 0.000 claims abstract description 147
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims description 14
- 239000010408 film Substances 0.000 description 37
- 238000010586 diagram Methods 0.000 description 17
- 239000011159 matrix material Substances 0.000 description 10
- 239000010409 thin film Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a liquid crystal display panel, include: the liquid crystal display device comprises a first substrate, a second substrate, a third substrate, a first liquid crystal layer between the first substrate and the second substrate, and a second liquid crystal layer between the second substrate and the third substrate; a first common electrode is arranged on one side of the first substrate facing the first liquid crystal layer, and a first pixel electrode is arranged on one side of the second substrate facing the first liquid crystal layer; the first substrate is provided with a first polaroid, the third substrate is provided with a second polaroid, a first transmission axis of the first polaroid is vertical to a second transmission axis of the second polaroid, the second substrate is provided with a selective reflection film, a third transmission axis of the selective reflection film is parallel to the first transmission axis of the first polaroid, and a reflection axis of the selective reflection film is vertical to the first transmission axis; the liquid crystal molecules in the first liquid crystal layer are in a reflective mode when in a lying posture and in a transmissive mode when in a standing posture. The utility model also discloses a display device.
Description
Technical Field
The utility model relates to a liquid crystal display's technical field especially relates to a liquid crystal display panel and display device.
Background
The liquid crystal display panel has the advantages of good picture quality, small volume, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and is widely applied to electronic equipment such as notebook computers, mobile phones, electronic books, liquid crystal televisions and the like.
With the development and popularization of liquid crystal display technology in recent years, a liquid crystal display panel, i.e., a transflective liquid crystal display device, which can be used in any environment has been developed. The semi-reflective liquid crystal display device has two display modes of a reflective mode and a transmissive mode, and can work in the reflective mode by utilizing ambient light when the external ambient light is sufficient; when the external environment light is insufficient, the backlight source can be turned on to work in a transmission mode.
However, in the above-mentioned technology, the liquid crystal display panel needs a protrusion in the reflective region, the manufacturing process is complicated, the uniformity of the cell thickness is not easy to control, and the display quality is affected. In addition, 1/4 wavelength wave plates are required to be added on the basis of the original polarizer, and the working procedures are increased. When the liquid crystal display panel works in a transmission mode, the liquid crystal display panel is interfered by reflection, so that the contrast is low and the display effect is poor. When the liquid crystal display panel works in the transmission mode, the power consumption of the liquid crystal display panel is relatively high, and the damage to eyes is large.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcomings and deficiencies in the prior art, the present invention provides a liquid crystal display panel and a display device to solve the problems of complicated manufacturing process of the transflective liquid crystal display panel and low contrast in the transmission mode in the prior art.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a liquid crystal display panel, include:
the liquid crystal display panel comprises a first substrate, a second substrate and a third substrate which are arranged from top to bottom in sequence, wherein a first liquid crystal layer is arranged between the first substrate and the second substrate, and a second liquid crystal layer is arranged between the second substrate and the third substrate;
the first substrate is provided with a first common electrode on one side facing the first liquid crystal layer, the second substrate is provided with a first pixel electrode on one side facing the first liquid crystal layer, and the third substrate is provided with a second common electrode and a second pixel electrode on one side facing the second liquid crystal layer;
the first substrate is provided with a first polaroid, the third substrate is provided with a second polaroid, a first transmission axis of the first polaroid is vertical to a second transmission axis of the second polaroid, the second substrate is provided with a selective reflection film, a third transmission axis of the selective reflection film is parallel to the first transmission axis of the first polaroid, and a reflection axis of the selective reflection film is vertical to the first transmission axis;
when the liquid crystal molecules in the first liquid crystal layer are in a lying posture, the liquid crystal display panel is in a reflection mode, and when the liquid crystal molecules in the first liquid crystal layer are in a standing posture, the liquid crystal display panel is in a transmission mode.
Further, the liquid crystal molecules in the first liquid crystal layer are positive liquid crystal molecules, the positive liquid crystal molecules are in a lying posture in an initial state, the positive liquid crystal molecules close to the first substrate and the positive liquid crystal molecules close to the second substrate are vertically aligned with each other, and the positive liquid crystal molecules are twisted by 90 degrees in the first liquid crystal layer from top to bottom.
Further, the liquid crystal molecules in the first liquid crystal layer are negative liquid crystal molecules, and the negative liquid crystal molecules are in a standing posture in an initial state.
Furthermore, the liquid crystal display panel further comprises a fourth substrate, the fourth substrate and the second substrate are attached together and located on one side of the second substrate facing the second liquid crystal layer, and the second liquid crystal layer is located between the fourth substrate and the third substrate.
Further, the selective reflection film is sandwiched between the fourth substrate and the second substrate.
Further, the fourth substrate is provided with a color-resist layer on a side facing the second liquid crystal layer.
Furthermore, the first substrate is provided with a color resistance material layer on one side facing the first liquid crystal layer.
Furthermore, the selective reflection film is positioned on one side of the second substrate facing the first liquid crystal layer, and a color resistance material layer is arranged on the other side of the second substrate facing the first liquid crystal layer.
Further, the second common electrode and the second pixel electrode are located at different layers and separated from each other, or the second common electrode and the second pixel electrode are located at the same layer and separated from each other.
The utility model also provides a display device, include as above liquid crystal display panel.
The utility model has the advantages that: the liquid crystal display panel comprises a first substrate, a second substrate and a third substrate which are sequentially arranged from top to bottom, wherein a first liquid crystal layer is arranged between the first substrate and the second substrate, and a second liquid crystal layer is arranged between the second substrate and the third substrate; the first substrate is provided with a first common electrode on one side facing the first liquid crystal layer, the second substrate is provided with a first pixel electrode on one side facing the first liquid crystal layer, and the third substrate is provided with a second common electrode and a second pixel electrode on one side facing the second liquid crystal layer; the first substrate is provided with a first polaroid, the third substrate is provided with a second polaroid, a first transmission axis of the first polaroid is vertical to a second transmission axis of the second polaroid, the second substrate is provided with a selective reflection film, a third transmission axis of the selective reflection film is parallel to the first transmission axis of the first polaroid, and a reflection axis of the selective reflection film is vertical to the first transmission axis; when the liquid crystal molecules in the first liquid crystal layer are in a lying posture, the liquid crystal display panel is in a reflection mode, and when the liquid crystal molecules in the first liquid crystal layer are in a standing posture, the liquid crystal display panel is in a transmission mode. The selective reflection film is arranged on the second substrate between the first liquid crystal layer and the second liquid crystal layer, and the first liquid crystal layer controls the switching of the liquid crystal display panel in reflection, transmission and semi-reflection and semi-transmission modes.
Drawings
Fig. 1 is a schematic structural diagram of a liquid crystal display panel in a reflective state according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the LCD panel of FIG. 1;
fig. 3 is a schematic structural diagram of a liquid crystal display panel in a transmissive mode according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of the LCD panel of FIG. 3;
fig. 5 is a schematic structural diagram of a half-reflective and half-transmissive mode of a liquid crystal display panel according to a first embodiment of the present invention;
FIG. 6 is a schematic diagram of the LCD panel of FIG. 5;
fig. 7 is a schematic structural diagram of a half-reflecting and half-transmitting mode of a liquid crystal display panel according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a half-reflecting and half-transmitting mode of a liquid crystal display panel according to a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of a half-reflecting and half-transmitting mode of a liquid crystal display panel according to a fourth embodiment of the present invention;
fig. 10 is a schematic structural diagram of a liquid crystal display panel in a transmissive state according to a fifth embodiment of the present invention;
fig. 11 is a schematic structural diagram of a liquid crystal display panel in a reflective mode according to a fifth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a half-reflecting and half-transmitting mode of a liquid crystal display panel in a fifth embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following detailed description is made in conjunction with the accompanying drawings and preferred embodiments for the specific embodiments, structures, features and effects of the liquid crystal display panel and the display device according to the present invention as follows:
[ example one ]
Fig. 1 is the embodiment of the present invention schematically illustrates a structure of a liquid crystal display panel in a reflective state, fig. 2 is a schematic diagram of a principle of a liquid crystal display panel in fig. 1, fig. 3 is a schematic diagram of a structure of a liquid crystal display panel in a transmissive mode, fig. 4 is a schematic diagram of a principle of a liquid crystal display panel in fig. 3, fig. 5 is a schematic diagram of a structure of a half-reflective and half-transmissive mode of a liquid crystal display panel in a first embodiment of the present invention, and fig. 6 is a schematic diagram of a principle of a liquid crystal display panel in fig. 5.
As shown in fig. 1 to fig. 6, a liquid crystal display panel according to an embodiment of the present invention includes:
the liquid crystal display panel comprises a first substrate 10, a second substrate 20 and a third substrate 40 which are sequentially arranged from top to bottom, wherein a first liquid crystal layer 30 is arranged between the first substrate 10 and the second substrate 20, and a second liquid crystal layer 50 is arranged between the second substrate 20 and the third substrate 40. In this embodiment, the liquid crystal display panel further includes a fourth substrate 60, the fourth substrate 60 is attached to the second substrate 20 and located on a side of the second substrate 20 facing the second liquid crystal layer 50, and the second liquid crystal layer 50 is located between the fourth substrate 60 and the third substrate 40.
The first substrate 10 is provided with a first common electrode 13 on a side facing the first liquid crystal layer 30, the first common electrode 13 is of a full-face structure, the second substrate 20 is provided with a first pixel electrode 21 on a side facing the first liquid crystal layer 30, the first pixel electrode 21 is of a block-shaped structure distributed in each pixel unit, the third substrate 40 is provided with a second common electrode 41 and a second pixel electrode 43 on a side facing the second liquid crystal layer 50, the second common electrode 41 and the second pixel electrode 43 are located at different layers and are separated from each other by a first insulating layer 42, the second common electrode 41 can be located above or below the second pixel electrode 43 (the second common electrode 41 is located below the second pixel electrode 43 as shown in fig. 1), preferably, the second common electrode 41 is of a full-face planar electrode, the second pixel electrode 43 is of a block-shaped electrode or a slit electrode having a plurality of electrode bars in each pixel region, to form Fringe Field Switching (FFS).
The liquid crystal molecules in the first liquid crystal layer 30 and the liquid crystal molecules in the second liquid crystal layer 50 are both positive liquid crystal molecules (liquid crystal molecules with positive dielectric anisotropy), as shown in fig. 1, in an initial state, the liquid crystal molecules in the first liquid crystal layer 30 are positive liquid crystal molecules and are in a lying posture, the positive liquid crystal molecules close to the first substrate 10 and the positive liquid crystal molecules close to the second substrate 20 are vertically aligned with each other, and the positive liquid crystal molecules are twisted by 90 ° from top to bottom in the first liquid crystal layer 30, that is, the first substrate 10, the second substrate 20 and the first liquid crystal layer 30 collectively form a TN display mode. The liquid crystal molecules in the second liquid crystal layer 50 are positive liquid crystal molecules and are in a lying posture, and the positive liquid crystal molecules near the third substrate 40 and the positive liquid crystal molecules near the fourth substrate 60 are aligned in parallel or in anti-parallel with each other.
A first polarizing plate 701 is arranged on the first substrate 10, a second polarizing plate 702 is arranged on the third substrate 40, a first transmission axis X1 of the first polarizing plate 701 is perpendicular to a second transmission axis X2 of the second polarizing plate 702, a selective reflection film 703 is arranged on the second substrate 20, a third transmission axis X3 of the selective reflection film 703 is parallel to a first transmission axis X1 of the first polarizing plate 701, and a reflection axis X4 of the selective reflection film 703 is perpendicular to a first transmission axis X1; in this embodiment, the selective reflection film 703 is located under the second substrate 20 and sandwiched between the second substrate 20 and the fourth substrate 60. The selective reflection film 703 has a transmission and reflection function, that is, the selective reflection film 703 can transmit light emitted from the backlight 20 and reflect light incident from the first substrate 10 side. Specifically, light having a light axis parallel to the third light transmission axis X3 of the selective reflection film 703 is transmitted, and light having a light axis parallel to the light reflection axis X4 of the selective reflection film 703 is reflected.
When the liquid crystal molecules in the first liquid crystal layer 30 are in a lying posture, the liquid crystal display panel is in a reflective mode, and when the liquid crystal molecules in the first liquid crystal layer 30 are in a standing posture, the liquid crystal display panel is in a transmissive mode.
The second substrate 20 and the third substrate 40 are both array substrates, the second substrate 20 and the third substrate 40 are defined by a plurality of scanning lines and a plurality of data lines which are insulated from each other and crossed to form a plurality of pixel units, a first pixel electrode 21 and a thin film transistor are arranged on the second substrate 20 corresponding to each pixel unit, and the first pixel electrode 21 is electrically connected with the data line adjacent to the thin film transistor through the thin film transistor. A second pixel electrode 43 and a thin film transistor are disposed on the third substrate 40 corresponding to each pixel unit, and the second pixel electrode 43 is electrically connected to the data line adjacent to the thin film transistor through the thin film transistor. For a more detailed description of the array substrate, please refer to the prior art, which is not described herein. In this embodiment, the first substrate 10 is a common substrate, the first black matrix 11 and the planarization layer 12 are disposed on a side of the first substrate 10 facing the first liquid crystal layer 30, and the first common electrode 13 covers the planarization layer 12. The fourth substrate 60 is a color filter substrate, the fourth substrate 60 is provided with a second black matrix 61 and a color resistance material layer 62 on one side facing the second liquid crystal layer 50, the first black matrix 11 and the second black matrix 61 are both in the same patterning structure and are aligned up and down, and the color resistance material layer 62 includes color resistance materials of three colors of red (R), green (G) and blue (B), and sub-pixels of three colors of red (R), green (G) and blue (B) are correspondingly formed.
The first substrate 10, the second substrate 20, the third substrate 40, and the fourth substrate 60 may be made of glass, acrylic, polycarbonate, or the like. The material of the first common electrode 13, the first pixel electrode 21, the second common electrode 41, and the second pixel electrode 43 may be Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), or the like.
Referring to fig. 1 and fig. 2, in the initial state of the liquid crystal display panel in this embodiment, the backlight is in the off state, no voltage is applied to the first common electrode 13, the first pixel electrode 21, the second common electrode 41, and the second pixel electrode 43, the external ambient light I1, I2 passes through the first polarizer 701 to form a linearly polarized light parallel to the first light transmission axis X1, passes through the first liquid crystal layer 30 and rotates 90 ° to form a linearly polarized light parallel to the light reflection axis X4 of the selective reflection film 703, the linearly polarized light parallel to the light reflection axis X4 irradiates on the selective reflection film 703 to be reflected, passes through the first liquid crystal layer 30 and rotates 90 ° to form a linearly polarized light parallel to the first light transmission axis X1, and finally exits the first polarizer 701, that is in the initial state of the liquid crystal display panel, i.e., the liquid crystal display panel is in the reflective. Of course, when the ambient light is strong and the display of the color is not required (such as reading novels), the first common electrode 13 and each first pixel electrode 21 can apply a corresponding driving voltage, and the rotation angle of the positive liquid crystal molecules in the first liquid crystal layer 30 is controlled by adjusting the gray scale voltage applied to the first pixel electrode 21, so as to control the intensity of the reflected light, thereby realizing the gray scale change.
Referring to fig. 3 and 4, in the transmissive mode, the first common electrode 13 and each of the first pixel electrodes 21 apply corresponding driving voltages to rotate the positive liquid crystal molecules in the first liquid crystal layer 30 from the lying posture to the standing posture, and the driving voltages applied to the first pixel electrodes 21 include gray-scale voltages of 0 to 255, which correspond to different reflectances respectively. The second common electrode 41 and the second pixel electrode 43 are applied with corresponding driving voltages, wherein the driving voltages applied by the second pixel electrode 43 include 0-255 gray scale voltages, which correspond to different gray scale displays respectively. Taking fig. 4 as an example, 255 gray scale voltages are applied to the left second pixel electrode 43 (of course, any gray scale voltages from 0 to 255 may be applied), the left backlight BL1 passes through the second polarizer 702 to form linearly polarized light parallel to the second light transmission axis X2, passes through the second liquid crystal layer 50 to become elliptically polarized light or circularly polarized light, passes through the selective reflection film 703 to form linearly polarized light parallel to the third light transmission axis X3, passes through the first liquid crystal layer 30 without rotating, and finally exits from the first polarizer 701, and at this time, the left red subpixel is in a transmissive mode. Similarly, the left ambient light I1 sequentially passes through the first polarizer 701, the first liquid crystal layer 30, the selective reflection film 703, the second liquid crystal layer 50, and the second polarizer 702, when the linearly polarized light passes through the selective reflection film 703, the linearly polarized light is parallel to the third transmission axis X3, and the selective reflection film 703 does not reflect the left ambient light I1, that is, does not interfere with the transmission.
When the right-side second pixel electrode 43 is applied with a gray scale voltage of 0, the right-side backlight BL2 passes through the second polarizer 702 to form linearly polarized light parallel to the second transmission axis X2, passes through the second liquid crystal layer 50 without deflection, and at this time, the linearly polarized light is parallel to the reflection axis X4 and does not pass through the selective reflection film 703 or is absorbed at the lower side of the selective reflection film 703. The right external ambient light I2 passes through the first polarizer 701, the first liquid crystal layer 30, the selective reflection film 703 and the second liquid crystal layer 50 in sequence, and the polarization direction of the linearly polarized light is not changed because the liquid crystal molecules in the second liquid crystal layer 50 are not deflected, and at this time, the polarization direction of the linearly polarized light is perpendicular to the second transmission axis X2 of the second polarizer 702 and is absorbed by the second polarizer 702. The selective reflective film 703 will not reflect the right ambient light I2, and the right green sub-pixel is dark, i.e. will not interfere with the transmission of the left red sub-pixel.
Referring to fig. 5 and 6, a part of the sub-pixels of the lcd panel is in the transmissive mode, and a part of the sub-pixels is in the reflective mode, i.e. the transflective mode. As shown in fig. 6, the left red sub-pixel is in a transmissive mode, and at this time, the first common electrode 13, the left first pixel electrode 21, the left second pixel electrode 41, and the left second pixel electrode 43 apply corresponding driving voltages, the left second pixel electrode 43 applies a 255 gray scale voltage, the left backlight BL1 passes through the second polarizer 702 to form linearly polarized light parallel to the second light transmission axis X2, passes through the second liquid crystal layer 50 to become elliptically polarized light or circularly polarized light, passes through the selective reflection film 703 to form linearly polarized light parallel to the third light transmission axis X3, passes through the first liquid crystal layer 30 without rotating, and finally exits from the first polarizer 701. Similarly, the left ambient light I1 passes through the first polarizer 701, the first liquid crystal layer 30, the selective reflection film 703, the second liquid crystal layer 50, and the second polarizer 702 in this order.
The right green sub-pixel is in a reflective mode, at this time, no voltage is applied to the right first pixel electrode 21 and the right second pixel electrode 43, of course, a driving voltage is still applied to the first common electrode 13 and the second common electrode 41, the right external ambient light I2 passes through the first polarizer 701 to form a linearly polarized light parallel to the first light transmission axis X1, passes through the first liquid crystal layer 30 and rotates by 90 ° to form a linearly polarized light parallel to the light reflection axis X4 of the selective reflection film 703, the linearly polarized light parallel to the light reflection axis X4 is irradiated on the selective reflection film 703 to be reflected, passes through the first liquid crystal layer 30 and rotates by 90 ° to form a linearly polarized light parallel to the first light transmission axis X1, and finally exits the first polarizer 701. The right backlight BL2 forms linearly polarized light parallel to the second transmission axis X2 through the second polarizer 702, and is not deflected through the second liquid crystal layer 50, and at this time, the linearly polarized light is parallel to the reflection axis X4 and is not transmitted through the selective reflection film 703 or absorbed at the lower side of the selective reflection film 703. For example, the transflective mode can be applied to an interior mirror, and when only time needs to be displayed, a region of one corner of the liquid crystal display panel can be set to be the transmissive mode, and the other regions can be set to be the reflective mode. Of course, the method can also be applied to other fields, and is not limited to the method.
[ example two ]
As shown in fig. 7, the liquid crystal display panel provided by the second embodiment of the present invention is substantially the same as the liquid crystal display panel provided by the first embodiment (fig. 5), except that, in this embodiment, only three substrates, namely, the first substrate 10, the second substrate 20 and the third substrate 40 need to be provided, the selective reflection film 703, the second black matrix 61 and the color resistance material layer 62 are all located on the second substrate 20, the selective reflection film 703 is located between the second substrate 20 and the first pixel electrode 21 and is separated by the second insulating layer 22, and the second black matrix 61 and the color resistance material layer 62 are located on one side of the second substrate 20 facing the second liquid crystal layer 50. Of course, in other embodiments, the selective reflection film 703 may also be located on other layers of the second substrate 20, for example, the selective reflection film 703 may also be located on a side of the second substrate 20 facing the second liquid crystal layer 50, but not limited thereto.
Compared with the first embodiment, in the present embodiment, the second substrate 20 needs to be formed on both sides, so that one glass substrate can be saved, and the box thickness can be reduced. But the process is more difficult.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ third example ]
As shown in fig. 8, a liquid crystal display panel provided by the third embodiment of the present invention is substantially the same as the liquid crystal display panel provided by the first embodiment (fig. 5), except that, in the present embodiment, the first substrate 10 is a color filter substrate, one side of the first substrate 10 facing the first liquid crystal layer 30 is provided with a first black matrix 11, a color resistance material layer 62 and a flat layer 12, the first common electrode 13 covers the flat layer 12, the color resistance material layer 62 includes color resistance materials of three colors of red (R), green (G) and blue (B), and correspondingly forms sub-pixels of three colors of red (R), green (G) and blue (B), the fourth substrate 60 is provided with a second black matrix 61 on one side facing the second liquid crystal layer 50, and the first black matrix 11 and the second black matrix 61 are both of the same patterning structure and aligned up and down. Of course, in other embodiments, the color-resisting material layer 62 may be disposed on both the first substrate 10 and the fourth substrate 60, but not limited thereto.
Compared with the first embodiment, in the present embodiment, the color resistance material layer 62 is disposed on the first substrate 10, and when the ambient light is strong, the intensity of the reflected light is controlled by adjusting the gray scale voltage applied to the first pixel electrode 21 and controlling the rotation angle of the positive liquid crystal molecules in the first liquid crystal layer 30, so as to realize gray scale change, and thus normal color display can be shown, and the second common electrode 41 and the second pixel electrode 43 do not need to apply a driving voltage, and the backlight source does not need to be turned on, so that the purpose of saving power can be achieved.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ example four ]
As shown In fig. 9, a liquid crystal display panel according to a fourth embodiment of the present invention is substantially the same as the liquid crystal display panel according to the first embodiment (fig. 5), except that In the present embodiment, the second pixel electrode 43 and the second common electrode 41 are located on the same layer, but are spaced apart from each other, each of the second pixel electrode 43 and the second common electrode 41 may include a plurality of electrode stripes, and the electrode stripes of the second pixel electrode 43 and the electrode stripes of the second common electrode 41 are alternately arranged to form an In-Plane Switching (IPS) mode.
Compared with the first embodiment, the second pixel electrode 43 and the second common electrode 41 are located on the same layer in the present embodiment, so that a mask process can be saved, and the box thickness can be reduced.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ example five ]
As shown in fig. 10 to 12, a liquid crystal display panel according to a fourth embodiment of the present invention is substantially the same as the liquid crystal display panel according to the first embodiment (fig. 1, 3 and 5), except that negative liquid crystal molecules (liquid crystal molecules having negative dielectric anisotropy) are used as the first liquid crystal layer 30 in this embodiment. With the technical progress, the performance of the negative liquid crystal is remarkably improved, and the application is more and more extensive. In this embodiment, as shown in fig. 10, in the initial state (i.e., in the case where no voltage is applied to the liquid crystal display device), the negative liquid crystal molecules in the first liquid crystal layer 30 are perpendicular to the first substrate 10 and the second substrate 20, i.e., the negative liquid crystal molecules are in a standing posture in the initial state, and a VA display mode is formed. At this time, the liquid crystal display panel is in a transmissive mode. The second common electrode 41 and the second pixel electrode 43 apply corresponding driving voltages, wherein the driving voltages applied by the second pixel electrode 43 include 0-255 gray scale voltages, and correspond to different gray scale displays respectively.
As shown in fig. 11, the first common electrode 13 and each of the first pixel electrodes 21 apply a corresponding driving voltage to rotate the negative liquid crystal molecules in the first liquid crystal layer 30 from the standing posture to the lying posture, and the driving voltage applied to the first pixel electrodes 21 includes gray scale voltages of 0 to 255, which correspond to different reflectances respectively. At this time, the liquid crystal display panel is in a transmissive mode.
As shown in fig. 12, the liquid crystal display panel has a transmissive mode for a part of the sub-pixels and a reflective mode for a part of the sub-pixels, i.e. a transflective mode. The red and blue sub-pixels on both sides are in a transmissive mode, and at this time, the first and second common electrodes 13 and 41 and the second pixel electrodes 43 on both sides apply corresponding driving voltages. The middle green sub-pixel is in a reflective mode, and the first common electrode 13, the second common electrode 41 and the middle first pixel electrode 21 apply corresponding driving voltages.
Compared with the first embodiment, the liquid crystal display panel in the first embodiment is in a dark state in the initial state, and the liquid crystal display panel in the first embodiment is in a reflective state in the initial state, and when the liquid crystal display panel is in the dark state, corresponding driving voltages need to be applied to the first common electrode 13 and the first pixel electrode 21, and power consumption is large in the dark state.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
The utility model also provides a display device, include as above liquid crystal display panel.
In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A liquid crystal display panel, comprising:
the liquid crystal display panel comprises a first substrate (10), a second substrate (20) and a third substrate (40) which are sequentially arranged from top to bottom, wherein a first liquid crystal layer (30) is arranged between the first substrate (10) and the second substrate (20), and a second liquid crystal layer (50) is arranged between the second substrate (20) and the third substrate (40);
the first substrate (10) is provided with a first common electrode (13) on the side facing the first liquid crystal layer (30), the second substrate (20) is provided with a first pixel electrode (21) on the side facing the first liquid crystal layer (30), and the third substrate (40) is provided with a second common electrode (41) and a second pixel electrode (43) on the side facing the second liquid crystal layer (50);
a first polaroid (701) is arranged on the first substrate (10), a second polaroid (702) is arranged on the third substrate (40), a first transmission axis (X1) of the first polaroid (701) is perpendicular to a second transmission axis (X2) of the second polaroid (702), a selective reflection film (703) is arranged on the second substrate (20), a third transmission axis (X3) of the selective reflection film (703) is parallel to a first transmission axis (X1) of the first polaroid (701), and a reflection axis (X4) of the selective reflection film (703) is perpendicular to the first transmission axis (X1);
when the liquid crystal molecules in the first liquid crystal layer (30) are in a lying posture, the liquid crystal display panel is in a reflection mode, and when the liquid crystal molecules in the first liquid crystal layer (30) are in a standing posture, the liquid crystal display panel is in a transmission mode.
2. The lcd panel of claim 1, wherein the liquid crystal molecules in the first liquid crystal layer (30) are positive liquid crystal molecules, the positive liquid crystal molecules are in a lying posture in an initial state, the positive liquid crystal molecules near the first substrate (10) and the positive liquid crystal molecules near the second substrate (20) are vertically aligned with each other, and the positive liquid crystal molecules are twisted by 90 ° in the first liquid crystal layer (30) from top to bottom.
3. The liquid crystal display panel according to claim 1, wherein the liquid crystal molecules in the first liquid crystal layer (30) are negative liquid crystal molecules, and the negative liquid crystal molecules are in a standing posture in an initial state.
4. The lcd panel of claim 1, further comprising a fourth substrate (60), wherein the fourth substrate (60) is attached to the second substrate (20) and located on a side of the second substrate (20) facing the second liquid crystal layer (50), and the second liquid crystal layer (50) is located between the fourth substrate (60) and the third substrate (40).
5. The LCD panel of claim 4, wherein the selective reflection film (703) is sandwiched between the fourth substrate (60) and the second substrate (20).
6. The liquid crystal display panel according to claim 4, wherein the fourth substrate (60) is provided with a color-resist layer (62) on a side facing the second liquid crystal layer (50).
7. The LCD panel according to claim 1 or 4, characterized in that the first substrate (10) is provided with a layer (62) of color-resist material on the side facing the first liquid crystal layer (30).
8. The LCD panel of claim 1, wherein the selective reflection film (703) is located on a side of the second substrate (20) facing the first liquid crystal layer (30), and the second substrate (20) is provided with a color-resist layer (62) on the other side facing the first liquid crystal layer (30).
9. The liquid crystal display panel according to claim 1, wherein the second common electrode (41) and the second pixel electrode (43) are located at different layers and separated from each other, or the second common electrode (41) and the second pixel electrode (43) are located at the same layer and separated from each other.
10. A display device comprising the liquid crystal display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920622221.0U CN209821552U (en) | 2019-04-30 | 2019-04-30 | Liquid crystal display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920622221.0U CN209821552U (en) | 2019-04-30 | 2019-04-30 | Liquid crystal display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209821552U true CN209821552U (en) | 2019-12-20 |
Family
ID=68883200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920622221.0U Active CN209821552U (en) | 2019-04-30 | 2019-04-30 | Liquid crystal display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209821552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140605A (en) * | 2021-04-16 | 2021-07-20 | 京东方科技集团股份有限公司 | Display device and manufacturing method thereof |
| CN113741083A (en) * | 2020-05-29 | 2021-12-03 | 京东方科技集团股份有限公司 | Display device and driving method thereof |
| CN115728985A (en) * | 2022-11-29 | 2023-03-03 | 惠科股份有限公司 | Display panel, display panel driving method and display device |
-
2019
- 2019-04-30 CN CN201920622221.0U patent/CN209821552U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741083A (en) * | 2020-05-29 | 2021-12-03 | 京东方科技集团股份有限公司 | Display device and driving method thereof |
| US11852942B2 (en) | 2020-05-29 | 2023-12-26 | Beijing Boe Display Technology Co., Ltd. | Display device and driving method for display device |
| CN113140605A (en) * | 2021-04-16 | 2021-07-20 | 京东方科技集团股份有限公司 | Display device and manufacturing method thereof |
| CN115728985A (en) * | 2022-11-29 | 2023-03-03 | 惠科股份有限公司 | Display panel, display panel driving method and display device |
| CN115728985B (en) * | 2022-11-29 | 2023-10-13 | 惠科股份有限公司 | Display panel, display panel driving method and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112379550B (en) | Display panel, driving method and display device | |
| KR101660657B1 (en) | Liquid-crystal display | |
| CN100424569C (en) | Liquid crystal display | |
| CN110412792B (en) | Display panel with switchable transmission and mirror surfaces and vehicle rearview mirror | |
| CN209821552U (en) | Liquid crystal display panel and display device | |
| US20050225696A1 (en) | Liquid crystal display device and electronic apparatus | |
| KR101888516B1 (en) | Dual mode liquid crystal display device | |
| CN214751220U (en) | Display panel and display device | |
| JP6887525B2 (en) | Display device | |
| CN112666747B (en) | Display panel, driving method and display device | |
| CN110426883B (en) | Display panel and display device | |
| CN215813616U (en) | Display device with switchable viewing angle | |
| CN112068340A (en) | Display panel with switchable viewing angles, display device and driving method | |
| CN110262098B (en) | Liquid crystal display device and driving method | |
| CN110426886B (en) | Liquid crystal display panel, driving method thereof and liquid crystal display device | |
| CN110426887B (en) | Display panel and display device | |
| CN111474777A (en) | Reflective liquid crystal display panel and display device | |
| JP2007241281A (en) | Wide view angle liquid crystal display | |
| CN220020053U (en) | Display panel with switchable viewing angles and display device | |
| CN113917721B (en) | Display panel with switchable wide and narrow viewing angles, driving method and display device | |
| CN114114744B (en) | Display device | |
| KR101855985B1 (en) | Bistable chiral splay nematic mode liquid crystal display device | |
| CN112904633B (en) | Display panel and display device | |
| EP2249196B1 (en) | Transflective liquid crystal display device | |
| US7633572B2 (en) | Liquid crystal display and method of driving the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Infovision Optoelectronics (Kunshan) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |