CN114253013A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN114253013A CN114253013A CN202111671428.5A CN202111671428A CN114253013A CN 114253013 A CN114253013 A CN 114253013A CN 202111671428 A CN202111671428 A CN 202111671428A CN 114253013 A CN114253013 A CN 114253013A
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 31
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses display panel and display device relates to and shows technical field, includes: a display area and a peep-proof area; the liquid crystal display panel comprises a color film substrate and an array substrate, wherein liquid crystal is arranged between the color film substrate and the array substrate; the first light shielding layer and the second light shielding layer are both positioned in the peep-proof area, the first light shielding layer comprises a first opening and a first light shielding part, the second light shielding layer comprises a second opening and a second light shielding part, and the first opening is positioned in the range of the second light shielding part and the second opening is positioned in the range of the first light shielding part along the direction vertical to the light-emitting surface of the display panel; the anti-peeping electrodes are positioned in the anti-peeping area and on one side of the array substrate close to the liquid crystal, and at least part of the anti-peeping electrodes are electrically connected; and the public electrode is positioned on the array substrate, and the peep-proof electrode and the public electrode form a horizontal electric field. This application is through setting up the peep-proof electrode, can realize a key peep-proof, improves the user experience sense that shows the product.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Thin Film Transistor-Liquid Crystal displays (TFT-LCDs for short) have the characteristics of small size, low power consumption, no radiation and the like, are rapidly developed in recent years, and occupy a leading position in the current flat panel Display market. However, with the development of society and the abundance of material conditions, privacy disclosure is inevitably generated in the display device while providing people with much convenience.
In the related art, two types of commonly adopted peeping prevention technologies include white peeping prevention and black peeping prevention, wherein the white peeping prevention technology has a complex display panel process, high cost and poor visual effect; the display panel in the black state peep-proof technology has larger thickness, low penetration rate and high cost; therefore, a display panel is needed to reduce the cost and realize the peep-proof one-key switching.
Disclosure of Invention
In view of this, the application provides a display panel and display device, through setting up peep-proof electrode, can realize a key peep-proof, improves the user experience sense of display product.
In order to solve the technical problem, the following technical scheme is adopted:
in a first aspect, the present application provides a display panel comprising: a display area and a peep-proof area;
the liquid crystal display panel comprises a color film substrate and an array substrate which are oppositely arranged, wherein liquid crystal is arranged between the color film substrate and the array substrate;
the first light shielding layer and the second light shielding layer are arranged at intervals and are positioned in the peep-proof area, the first light shielding layer comprises a first opening and a first light shielding part, the second light shielding layer comprises a second opening and a second light shielding part, the orthographic projection of the first opening on the light-emitting surface of the display panel is positioned in the orthographic projection range of the second light shielding part on the light-emitting surface of the display panel, and the orthographic projection of the second opening on the light-emitting surface of the display panel is positioned in the orthographic projection range of the first light shielding part in the direction of the light-emitting surface of the display panel;
the anti-peeping electrodes are positioned in the anti-peeping area and on one side of the array substrate close to the liquid crystal, and at least part of the anti-peeping electrodes are electrically connected;
and the public electrode is positioned on the array substrate, and the peep-proof electrode and the public electrode form a horizontal electric field.
In a second aspect, the present application further provides a display device, including a display panel, where the display panel is the display panel provided in the present application.
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 and the display device provided by the application have the advantages that the first light shielding layer and the second light shielding layer are arranged in the peep-proof area at intervals; the first shading layer comprises a first opening and a first shading part; the second light-shielding layer includes a second opening and a second light-shielding portion; along the direction vertical to the light-emitting surface of the display panel, the first opening is positioned in the range of the second light-shielding part, and the second opening is positioned in the range of the first light-shielding part; therefore, light emitted by the backlight module is blocked by the second blocking portion of the second light blocking layer, light can only be emitted from the second opening to the light emitting surface of the display surface, due to the existence of the first light blocking layer, the light emitted from the second opening is blocked by the first light blocking portion, and only part of light with large visual angle is emitted to the light emitting surface of the display panel from the first opening, so that only a viewer in a large visual angle can feel the light emitted by the peep-proof area, and viewers in other visual angles can not feel the light emitted by the peep-proof area, and normal display of the display panel can not be influenced in the peep-proof mode; furthermore, a plurality of peep-proof electrodes are arranged in the peep-proof area, and at least part of the peep-proof electrodes are mutually and electrically connected; the display panel in the embodiment is further provided with a common electrode, a horizontal electric field is formed between the peep-proof electrode and the common electrode, the horizontal electric field can drive the liquid crystal to deflect, light of the backlight module is further transmitted to the color film substrate, and a good peep-proof effect is achieved in the peep-proof mode; in addition, at least part of peep-proof electrodes are electrically connected with each other, one-key peep-proof can be realized, and the quality of the display panel is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 3-1 is a cross-sectional view of the display panel along A-A' provided by the embodiment shown in FIG. 2;
FIG. 3-2 is a cross-sectional view of the display panel along B-B' of the embodiment shown in FIG. 2
Fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
figure 5 is another cross-sectional view of the display panel along a-a' provided by the embodiment of figure 2,
fig. 6 is a schematic top view illustrating a metal trace according to an embodiment of the present disclosure;
fig. 7 is a schematic top view of a peep-proof electrode according to an embodiment of the present application;
fig. 8 is a schematic top view of a peep-proof electrode according to an embodiment of the present disclosure;
fig. 9 is a schematic top view of a peep-proof electrode according to an embodiment of the present disclosure;
fig. 10 is a schematic top view of a peep-proof electrode according to an embodiment of the present application;
fig. 11 is a schematic top view of a peep-proof electrode according to an embodiment of the present application;
fig. 12 is a schematic top view of a peep-proof electrode according to an embodiment of the present application;
fig. 13 is a schematic top view of a peep-proof electrode according to an embodiment of the present disclosure;
fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims. The same parts between the embodiments are not described in detail.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a display panel provided in an embodiment of the present application, fig. 2 is another schematic structural diagram of the display panel provided in the embodiment of the present application, fig. 3-1 is a cross-sectional view of the display panel provided in the embodiment of fig. 2 along a-a ', fig. 3-2 is a cross-sectional view of the display panel provided in the embodiment of fig. 2 along B-B', please refer to fig. 1, fig. 2, fig. 3-1 and fig. 3-2, and a display panel 100 provided in the present application includes: a display area 10 and a peep-proof area 20;
the liquid crystal display panel comprises a color film substrate 30 and an array substrate 40 which are arranged oppositely, wherein a liquid crystal 50 is arranged between the color film substrate 30 and the array substrate 40;
the first light shielding layer 61 and the second light shielding layer 62 which are arranged at intervals are positioned in the peep-proof area 20, the first light shielding layer 61 comprises a first opening 61-1 and a first light shielding part 61-2, the second light shielding layer 62 comprises a second opening 62-1 and a second light shielding part 62-2, the orthographic projection of the first opening 61-1 on the light-emitting surface of the display panel is positioned in the range of the orthographic projection of the second light shielding part 62-2 on the light-emitting surface of the display panel, and the orthographic projection of the second opening 62-1 on the light-emitting surface of the display panel is positioned in the range of the orthographic projection of the first light shielding part 61-2 on the light-emitting surface of the display panel;
a plurality of peep-proof electrodes 70 located in the peep-proof region 20 and located on one side of the array substrate 40 close to the liquid crystal 50, wherein at least part of the peep-proof electrodes 70 are electrically connected;
the common electrode 150 is located on the array substrate 40, and the privacy protecting electrode 70 and the common electrode 150 form a horizontal electric field.
Specifically, referring to fig. 1, fig. 2, fig. 3-1 and fig. 3-2, the display panel in the present embodiment includes a color film substrate 30 and an array substrate 40, which are oppositely disposed, and a liquid crystal 50 is disposed between the color film substrate 30 and the array substrate 40; the array substrate 40 is provided with a thin film transistor, and the color film substrate 30 is provided with a pixel unit.
The display panel in the embodiment includes a display mode and a peep-proof mode, and the display panel includes a display area 10 and a peep-proof area 20; in the display mode, the display region 10 is used for normal light emission, and the peep prevention region 20 does not emit light; in the privacy mode, the display region 10 is used for normal lighting, the privacy region 20 does not emit light at a small viewing angle, and emits light at a large viewing angle.
Further, a first light-shielding layer 61 and a second light-shielding layer 62 are disposed in the peep-proof area 20, and the first light-shielding layer 61 and the second light-shielding layer 62 are disposed at an interval along a direction perpendicular to a light-emitting surface of the display panel, optionally, the first light-shielding layer 61 and the second light-shielding layer 62 may be simultaneously located on the color film substrate 30, the first light-shielding layer 61 and the second light-shielding layer 62 may be simultaneously located on the array substrate 40, and the first light-shielding layer 61 and the second light-shielding layer 62 may be respectively located on the color film substrate 30 and the array substrate 40; the first light shielding layer 61 includes a first opening 61-1 and a first light shielding portion 61-2, and the first light shielding layer 61 can also be understood as a hollow shape; the second light-shielding layer 62 includes a second opening 62-1 and a second light-shielding portion 62-2, and the second light-shielding layer 62 can also be understood as a hollow-out shape; along the direction vertical to the light-emitting surface of the display panel, the first opening 61-1 is positioned in the range of the second shading part 62-2, and the second opening 62-1 is positioned in the range of the first shading part 61-2; optionally, the first light shielding layer 61 in this embodiment is located on a side of the second light shielding layer 62 close to the light emitting surface of the display panel, so that light emitted from the backlight module (not shown in the figure) is blocked by the second shielding portion of the second light shielding layer 62, and light can only be emitted from the second opening 62-1 to the light emitting surface of the display panel, because of the existence of the first light shielding layer 61, light emitted from the second opening 62-1 is blocked by the first light shielding portion 61-2, and only a part of light with a large viewing angle is emitted to the light emitting surface of the display panel from the first opening 61-1, so that only an observer in a large viewing angle can feel light emitted from the peep-proof area 20, and an observer in other viewing angles cannot feel light emitted from the peep-proof area 20, and thus normal display of the display panel is not affected in the peep-proof mode.
Further, a plurality of peep-proof electrodes 70 are further disposed in the peep-proof area 20, the peep-proof electrodes 70 may be slit electrodes having a plurality of electrode strips, the peep-proof electrodes 70 are located on one side of the array substrate 40 close to the liquid crystal 50, and at least some of the peep-proof electrodes 70 are electrically connected to each other; optionally, at least a portion of the privacy electrode 70 is in direct contact electrical connection; the display panel in this embodiment is further provided with a common electrode 150, the common electrode 150 may be a planar electrode or a strip electrode, the common electrode 150 is located on the array substrate 40, and a horizontal electric field is formed between the peep-proof electrode 70 and the common electrode 150, and the horizontal electric field can drive the liquid crystal 50 to deflect, so that light of the backlight module is transmitted to the color film substrate 30, and a good peep-proof effect is achieved in a peep-proof mode; in addition, at least part of the peep-proof electrodes 70 are electrically connected with each other, so that on one hand, the resistance can be effectively reduced; on the other hand, by electrically connecting part of the peep-proof electrodes 70, the electrically connected peep-proof electrodes 70 can synchronously receive the same signal, so that the part of the peep-proof electrodes 70 can be synchronously turned on or off, one-key peep-proof can be effectively realized, the control of the peep-proof electrodes 70 is simplified, and the quality of the display panel is improved.
It should be further noted that, in the embodiment, the display panel includes a first polarization device 120, an array substrate 40, a liquid crystal 50, a color filter substrate 30, and a second polarization device 130, which are stacked, where the array substrate 40 includes a substrate 110, and the substrate 110 may be a glass substrate or a flexible substrate; the first and second polarization means 120 and 130 include polarizers therein for cooperating with the liquid crystal 50, thereby enabling the display panel 100 to display; the array substrate 40 comprises a plurality of thin film transistors, each thin film transistor comprises a source drain, a grid and an active layer, and the source drain is positioned on the same layer and arranged at intervals; the grid electrode and the grid line are positioned on the same layer and are electrically connected, and the grid electrode and the active layer are separated by an insulating layer; the source or drain is electrically connected to the data line and supplies an electrical signal to the pixel electrode.
It should be noted that the embodiment shown in fig. 1 only schematically shows the position relationship between the display area 10 and the peep-preventing area 20, and does not represent actual dimensions; the embodiment shown in fig. 2 only schematically shows the position of the peep-prevention electrode 70, and does not represent actual dimensions; the embodiments shown in fig. 3-1 and 3-2 are merely schematic representations of the positional relationship of the respective film layers, and do not represent actual dimensions.
With continued reference to fig. 2, in an alternative embodiment of the present application, all of the privacy electrodes 70 are electrically connected.
Specifically, as shown in fig. 2, all the peep-proof electrodes 70 included in the display panel of the present embodiment are electrically connected to each other; the peep-proof electrodes 70 are provided in the display panel, and the peep-proof electrodes 70 are all electrically connected, that is, the peep-proof electrodes 70 in the display panel can be simultaneously turned on and turned off, so that a one-key peep-proof mode can be effectively realized, the control of the peep-proof electrodes 70 is simplified, and the peep-proof function of the display panel is stronger.
With continuing reference to fig. 2, 3-1 and 3-2, in an alternative embodiment of the present application, the method further comprises: a pixel electrode 80 positioned in the display region 10;
the pixel electrodes 80 are arranged along the first direction D1 to form pixel electrode rows 81, the privacy electrodes 70 are arranged along the first direction D1 to form privacy electrode rows 71, and the pixel electrode rows 81 and the privacy electrode rows 71 are alternately arranged along the second direction D2; the first direction D1 and the second direction D2 intersect.
It should be noted that the embodiment shown in fig. 2 only schematically shows the arrangement relationship of the pixel electrodes 80 in the same pixel electrode row 81 and the arrangement relationship of the privacy electrodes 70 in the same privacy electrode row 71, and does not represent an actual size.
Specifically, as shown in fig. 2, in the display panel of the present embodiment, the display area 10 includes a pixel electrode 80, optionally, the pixel electrode 80 is disposed corresponding to a pixel unit in the color filter substrate 30, and an electric field is formed between the pixel electrode 80 and the common electrode 150, where the electric field can drive the liquid crystal 50 to deflect, so as to enable light of the backlight module to irradiate the pixel unit of the color filter substrate 30, and further enable the display area 10 to emit light; optionally, the pixel unit includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
Further, the pixel electrodes 80 in the present embodiment are arranged in the pixel electrode rows 81 along the first direction D1, the privacy electrode 70 is arranged in the privacy electrode rows 71 along the first direction D1, the pixel electrode rows 81 and the privacy electrode rows 71 are alternately arranged along the second direction D2, the first direction D1 intersects the second direction D2, and optionally, the first direction D1 is perpendicular to the second direction D2; it can be understood that the pixel electrode rows 81 and the privacy electrode rows 71 are arranged alternately, so that overlapping of the privacy regions 20 and the display regions 10 in the first direction D1 in the pixel units arranged in the first direction D1 can be avoided, and therefore, the problem of light crosstalk caused by transmission of light from the privacy regions 20 to the display regions 10, which affects normal display, is avoided.
With continuing reference to fig. 2, 3-1 and 3-2, in an alternative embodiment of the present application, the method further comprises: a pixel electrode 80 positioned in the display region 10; the pixel electrode 80 and the privacy electrode 70 are located at the same layer.
Specifically, as shown in fig. 2, fig. 3-1 and fig. 3-2, in the present embodiment, the pixel electrode 80 and the peep-proof electrode 70 are located in the same layer, and optionally, both the peep-proof electrode 70 and the pixel electrode 80 are formed by etching, and when the pixel electrode 80 and the peep-proof electrode 70 are located in the same layer, they can be simultaneously manufactured, which can save the manufacturing process, and in addition, the pixel electrode 80 and the peep-proof electrode 70 are located in the same layer, which can also reduce the thickness of the display panel, and improve the experience of the display panel.
Fig. 4 is a schematic structural diagram of another display panel provided in an embodiment of the present application, please refer to fig. 4 in combination with fig. 2, and in an alternative embodiment of the present application, the display panel further includes: a first connection electrode 72 and a second connection electrode 73, the first connection electrode 72 being electrically connected to the second connection electrode 73;
the first connecting electrodes 72 are located on at least one side of the peep-proof electrode row 71 in the second direction D2;
the second connection electrode 73 is located on at least one side of the peep-prevention electrode row 71 in the first direction D1.
It should be noted that the embodiment shown in fig. 2 and 4 only schematically shows one shape of the first connection electrode 72 and the second connection electrode 73, and does not represent an actual situation, and the shapes of the first connection electrode 72 and the second connection electrode 73 may be other, and the present application is not limited thereto.
Specifically, as shown in fig. 2 and 4, the display panel of the present embodiment is provided with a first connecting electrode 72 and a second connecting electrode 73, the first connecting electrode 72 and the second connecting electrode 73 are electrically connected to each other, and the first connecting electrode 72 and the second connecting electrode 73 are used for electrically connecting the plurality of peep-proof electrodes 70; alternatively, the first connection electrodes 72 are disposed on one side of the privacy electrode row 71 in the second direction D2, and the second connection electrodes 73 are disposed on one side of the privacy electrode row 71 in the first direction D1; the first connection electrode 72 extends along the first direction D1, the second connection electrode 73 extends along the second direction D2, and the first connection electrode 72 is electrically connected with the second connection electrode 73 in an extending manner; optionally, both sides of the peep-proof electrode row 71 along the second direction D2 are provided with first connection electrodes 72, both sides of the peep-proof electrode row 71 along the first direction D1 are provided with second connection electrodes 73, the first connection electrodes 72 extend along the first direction D1, the second connection electrodes 73 extend along the second direction D2, and the first connection electrodes 72 are electrically connected with the second connection electrodes 73 in an extending manner; therefore, all the peep-proof electrodes 70 in the display panel can be electrically connected, so that the peep-proof electrodes 70 can synchronously receive peep-proof signals, and the one-key peep-proof function is further realized.
With continuing reference to fig. 3-1 and 3-2, in an alternative embodiment of the present application, the method further comprises: the conductive layer 90, the conductive layer 90 includes a metal trace 91, at least a portion of the metal trace 91 is located in the peep-proof region 20, and the metal trace 91 is electrically connected to the peep-proof electrode 70.
It should be noted that the embodiment shown in fig. 3-1 only schematically shows the position relationship between the conductive layer 90 and the metal trace 91, and does not represent an actual size.
Specifically, as shown in fig. 3-1 and fig. 3-2, the display panel of the present embodiment further includes a conductive layer 90, where the conductive layer 90 is a metal conductive layer 90, and the conductive layer 90 includes a metal trace 91; at least part of the metal trace 91 is located in the peep-proof region 20, and the metal trace 91 is electrically connected to the peep-proof electrode 70, optionally, the metal trace 91 is electrically connected to the peep-proof electrode 70 through the via 141; in this way, a solution for reducing the load can be achieved.
Optionally, the conductive layer 90 is located on the array substrate 40, and the conductive layer 90 belongs to one of the thin film transistor array layers, so that the conductive layer 90 does not need to be separately manufactured, and the manufacturing process can be simplified; optionally, the array substrate 40 may further include a metal light shielding layer (not shown in the figure), where the metal light shielding layer is located on one side of the active layer away from the liquid crystal 50, so as to prevent light emitted from the backlight module (not shown in the figure) from irradiating the active layer, which may affect the active layer and further increase leakage current of the thin film transistor. The conductive layer 90 also can reduce the load by using a metal light shielding layer, and the manufacturing process can be simplified.
Referring to fig. 3-1 and fig. 3-2, in an alternative embodiment of the present application, the conductive layer 90 further includes a gate trace 93, and the gate trace 93 and the metal trace 91 are formed in the same layer.
It should be noted that the embodiments shown in fig. 3-1 and fig. 3-2 only schematically show the positional relationship between the gate trace 93 and the metal trace 91, and do not represent actual dimensions.
Specifically, as shown in fig. 3-1 and fig. 3-2, in the present embodiment, the conductive layer 90 further includes a gate trace 93, and the gate trace 93 and the metal trace 91 are fabricated at the same layer; the gate trace 93 is electrically connected to a gate of the thin film transistor; it can be understood that the conductive layer 90 is used to multiplex the gate layer of the tft, and the gate trace 93 and the metal trace 91 are disposed in the gate layer, so that the manufacturing process of the display panel can be simplified.
As shown in fig. 3-1 and fig. 3-2, in an alternative embodiment of the present application, the peep-proof area 20 does not need to be provided with a thin film transistor, the metal trace 91 is electrically connected to the peep-proof electrode 70, and directly transmits a signal to the peep-proof electrode 70 through the metal trace 91, and at the same time, transmits a signal to the common electrode 150 located in the peep-proof area 20, so that an electric field is generated between the peep-proof electrode 70 and the common electrode 150 to drive the deflection of the liquid crystal, thereby implementing the peep-proof function of the display panel, and thus saving the process and the cost.
Fig. 5 is another cross-sectional view of the display panel along a-a' shown in fig. 2, please refer to fig. 5, in an optional embodiment of the present application, a data signal is transmitted to a data line through a source/drain of a thin film transistor located in the privacy protection region 20, the data line located in the privacy protection region 20 is electrically connected to the privacy protection electrode 70 through a via, so as to further achieve transmission of the data signal to the privacy protection electrode 70, and at the same time, a common voltage signal is transmitted to the common electrode 150 located in the privacy protection region 20, so that an electric field is generated between the privacy protection electrode 70 and the common electrode 150 to drive deflection of liquid crystal, thereby achieving a privacy protection function of the display panel.
Fig. 6 is a schematic top view structure diagram of a metal trace provided in an embodiment of the present application, please refer to fig. 6 in combination with fig. 2 to 4, and in an alternative embodiment of the present application, an extending direction of the metal trace 91 in the peep prevention area 20 is the same as an extending direction of the gate trace 93.
Specifically, as shown in fig. 6 and in combination with fig. 2 to 4, in this embodiment, the extending directions of the metal trace 91 and the gate trace 93 are the same, so that there is no overlapping area between the metal trace 91 and the gate trace 93, and an additional bridge structure is not required, which further simplifies the manufacturing process of the display panel.
In an alternative embodiment of the present application, an insulating layer 140 is included between the conductive layer 90 and the privacy electrode 70, the insulating layer 140 includes a via 141, and the metal trace 91 is electrically connected to the privacy electrode 70 through the via 141.
It should be noted that the embodiment shown in fig. 3-1 only schematically shows the positional relationship of the via 141, and does not represent the actual size of the via 141.
Specifically, as shown in fig. 3-1, in the present embodiment, an insulating layer 140 is further included between the conductive layer 90 and the peep-proof electrode 70, a via hole 141 is disposed in the insulating layer 140, and the metal trace 91 is electrically connected to the peep-proof electrode 70 through the via hole 141; it can be understood that the insulating layer 140 is provided with a through hole, and a conductive material is disposed in the through hole, so that the metal trace 91 is electrically connected to the peep-proof electrode 70; in this way, a reduced load solution is achieved.
With continued reference to fig. 3-1, in an alternative embodiment of the present application, the first light-shielding layer 61 and the second light-shielding layer 62 are both located on the color film substrate 30, or alternatively; the first and second light shielding layers 61 and 62 are located on the array substrate 40.
It should be noted that fig. 3-1 only shows an embodiment in which the first light-shielding layer 61 and the second light-shielding layer 62 are both located on the color filter substrate 30, and it is understood that the first light-shielding layer 61 and the second light-shielding layer 62 may also be both located on the array substrate 40 side.
Specifically, as shown in fig. 3-1 and fig. 3-2, in the present embodiment, the first light-shielding layer 61 and the second light-shielding layer 62 are both located on the color film substrate 30 or both located on the array substrate 40, and both can implement large-view light leakage and implement an anti-peeping function; in addition, because the color filter substrate 30 and the array substrate 40 need to be aligned and bonded to form a display panel, there is a problem of alignment accuracy during the alignment and bonding process, if the first light shielding layer 61 is disposed on the color filter substrate 30 and the second light shielding layer is disposed on the array substrate 40, or the first light shielding layer 61 is disposed on the array substrate 40 and the second light shielding layer is disposed on the color filter substrate 30, due to the alignment accuracy problem of the substrate bonding, misalignment between the first light shielding layer 61 and the second light shielding layer 62 may occur, so that the peep-proof angles at both sides may be changed, thereby affecting the peep-proof effect, and even possibly causing the orthographic projection of a part of the first opening 61-1 on the light-emitting surface of the display panel not to be within the orthographic projection of the second light shielding portion 62-2 on the light-emitting surface of the display panel, or the orthographic projection of a part of the second opening 62-1 on the light-emitting surface of the display panel not to be within the orthographic projection of the first light shielding portion 61-2 on the light-emitting surface of the display panel, the display panel has light leakage under a narrow viewing angle, and the display effect is further affected. By arranging the first light shielding layer 61 and the second light shielding layer 62 on the color film substrate 30 or on the array substrate 40, the problem caused by alignment accuracy can be effectively avoided, and thus the peep-proof effect and the display effect of the display panel are ensured.
Fig. 7 is a schematic top view structure diagram of the privacy electrode according to the embodiment of the present application, fig. 8 is a schematic top view structure diagram of the privacy electrode according to the embodiment of the present application, and fig. 9 is a schematic top view structure diagram of the privacy electrode according to the embodiment of the present application, referring to fig. 7
In an alternative embodiment of the present application, shown in fig. 9, the privacy electrode 70 has a double domain structure.
Specifically, please refer to fig. 7 to 9, the anti-peeping electrode 70 in the present embodiment has a double-domain structure, and at this time, the pixel electrode 80 may have a double-domain structure or a single-domain structure; when the privacy electrode 70 and the pixel electrode 80 are both of a two-domain structure, the first domain and the second domain included in the privacy electrode 70 extend in the same direction as the first domain and the second domain included in the pixel electrode 80. It is understood that when the alignment direction of the whole display panel is the same, if the domain portions of the pixel electrode 80 and the privacy electrode 70 extend in different directions, liquid crystal may be disturbed. In the present embodiment, the domain portions of the privacy electrode 70 and the pixel electrode 80 are arranged in the same direction, which is beneficial to avoiding the liquid crystal disorder.
It should be noted that, in the embodiment shown in fig. 7, both the pixel electrode 80 and the privacy electrode 70 have a double-domain structure; in the embodiment shown in fig. 8, the peep-proof electrode 70 has a double-domain structure, the pixel electrode 80 has a single-domain structure, and the domains of the pixel electrode 80 extend in the same direction; in the embodiment shown in fig. 9, the privacy electrode 70 has a double-domain structure, the pixel electrode 80 has a single-domain structure, and the extending directions of the domains of the pixel electrodes 80 in two adjacent pixel electrode rows 81 are symmetrical.
Fig. 10 is a schematic diagram illustrating another top view structure of the privacy electrode according to the embodiment of the present application, fig. 11 is a schematic diagram illustrating another top view structure of the privacy electrode according to the embodiment of the present application, fig. 12 is a schematic diagram illustrating another top view structure of the privacy electrode according to the embodiment of the present application, fig. 13 is a schematic diagram illustrating another top view structure of the privacy electrode according to the embodiment of the present application, please refer to fig. 10 to 13, in an alternative embodiment of the present application, the privacy electrode 70 has a single domain structure.
Specifically, please refer to fig. 10 to 13, in which the peep-proof electrode 70 is a single-domain electrode, and at this time, the pixel electrode 80 may have a double-domain structure or a single-domain structure; when the peep-proof electrode 70 and the pixel electrode 80 are both in a single-domain structure, the domain extension direction of the peep-proof electrode 70 and the domain extension direction of the pixel electrode 80 may be the same or different; optionally, the domain extending directions of the adjacent peep-proof electrode rows 71 may be the same or different, and this embodiment is not limited herein; the arrangement scheme of the multiple peep-proof electrodes 70 and the pixel electrodes 80 can enrich the arrangement form of the display panel, have diversified selection modes, and effectively realize the peep-proof function of the display panel.
In the embodiment shown in fig. 10, the privacy electrode 70 has a single domain structure, and the pixel electrode 80 has a double domain structure; in the embodiment shown in fig. 11, the privacy electrode 70 has a single-domain structure, the pixel electrodes 80 have a single-domain structure, and the extending directions of the domains of the pixel electrodes 80 in two adjacent pixel electrode rows 81 are symmetrical; in the embodiment shown in fig. 12, the privacy electrode 70 has a single-domain structure, the pixel electrode 80 has a single-domain structure, and the domain portions of the privacy electrodes 70 in two adjacent privacy electrode rows 71 extend symmetrically; in the embodiment shown in fig. 13, the privacy electrode 70 and the pixel electrode 80 are both of a single-domain structure, and the domain portions of the privacy electrode 70 extend in the same direction as the domain portions of the pixel electrode 80.
With continued reference to fig. 11, in an alternative embodiment of the present application, the method further includes: a pixel electrode 80 positioned in the display region 10;
an acute angle between the domain of the pixel electrode 80 and the second direction D2 is a, an acute angle between the domain of the privacy electrode 70 and the second direction D2 is b, and a difference between a and b is not more than 5°。
Specifically, as shown in fig. 11, the display region 10 of the display panel in the embodiment further includes a pixel electrode 80, an acute angle between the domain extending direction of the pixel electrode 80 and the second direction D2 is a, and an acute angle between the domain extending direction of the privacy electrode 70 and the second direction D2 is b, where a difference between a and b is less than or equal to 5°(ii) a Since the display panel is usually aligned over the whole surface, i.e. the alignment directions of the display region 10 and the privacy region 20 are the same, when the difference between a and b is less than or equal to 5°In the process, the difference between the domain extending direction of the pixel electrode 80 and the domain extending direction of the anti-peeping electrode 70 is small, so that the phenomenon of disorder of the driving liquid crystal 50 can be avoided, the phenomenon of light leakage of the display panel is avoided, and the quality of the display panel is ensured.
In an alternative embodiment of the present application, 0°≤b≤15°。
Specifically, in the present embodiment, the acute angle b between the domain extension direction of the privacy electrode 70 and the second direction D2 is equal to or greater than 0°Less than or equal to 15°In the usual case b is 10°Left and right, therefore, in this embodiment, b is 0 or more°Less than or equal to 15°The disorder phenomenon of the driving liquid crystal 50 can be avoided, and the quality of the display panel can be ensured.
Please refer to fig. 13, and please refer to the alternative embodiment of the present application, in which the tilt angles of the domains of the pixel electrode 80 are the same as the tilt angles of the domains of the privacy electrode 70.
Specifically, as shown in fig. 13, in the present embodiment, the tilt angle of the domain of the pixel electrode 80 is the same as the tilt angle of the domain of the anti-peeping electrode 70, so as to ensure that the anti-peeping electrode 70 and the pixel electrode 80 are arranged in the same manner, thereby avoiding the liquid crystal disorder caused by the large difference between the anti-peeping electrode 70 and the pixel electrode 80, and further ensuring the display and anti-peeping functions of the display panel.
Based on the same inventive concept, fig. 14 is a schematic structural diagram of a display device provided in an embodiment of the present application, please refer to fig. 14, the present application further provides a display device 200, the display device 200 includes a display panel 100, the display panel 100 is a display panel provided in any of the embodiments of the present application, and repeated descriptions are omitted.
It should be noted that, for the embodiments of the Display device 200 provided in the embodiments of the present application, reference may be made to the embodiments of the Display panel 100, and the Display device 200 of the present application takes a Liquid Crystal Display (Liquid Crystal Display) device as an example, and repeated parts are not repeated. The display device 200 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
According to the embodiments, the application has the following beneficial effects:
according to the display panel and the display device, the first light shielding layer and the second light shielding layer are arranged in the peeping-proof area at intervals; the first shading layer comprises a first opening and a first shading part; the second light-shielding layer includes a second opening and a second light-shielding portion; along the direction vertical to the light-emitting surface of the display panel, the first opening is positioned in the range of the second light-shielding part, and the second opening is positioned in the range of the first light-shielding part; therefore, light emitted by the backlight module is blocked by the second blocking portion of the second light blocking layer, light can only be emitted from the second opening to the light emitting surface of the display surface, due to the existence of the first light blocking layer, the light emitted from the second opening is blocked by the first light blocking portion, and only part of light with large visual angle is emitted to the light emitting surface of the display panel from the first opening, so that only a viewer in a large visual angle can feel the light emitted by the peep-proof area, and viewers in other visual angles can not feel the light emitted by the peep-proof area, and normal display of the display panel can not be influenced in the peep-proof mode; furthermore, a plurality of peep-proof electrodes are arranged in the peep-proof area, and at least part of the peep-proof electrodes are mutually and electrically connected; the display panel in the embodiment is further provided with a common electrode, a horizontal electric field is formed between the peep-proof electrode and the common electrode, the horizontal electric field can drive the liquid crystal to deflect, light of the backlight module is further transmitted to the color film substrate, and a good peep-proof effect is achieved in the peep-proof mode; in addition, at least part of peep-proof electrodes are electrically connected with each other, one-key peep-proof can be realized, and the quality of the display panel is improved.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (16)
1. A display panel, comprising: a display area and a peep-proof area;
the liquid crystal display panel comprises a color film substrate and an array substrate which are arranged oppositely, wherein liquid crystal is arranged between the color film substrate and the array substrate;
the first light shielding layer and the second light shielding layer are arranged at intervals and are positioned in the peep-proof area, the first light shielding layer comprises a first opening and a first light shielding part, the second light shielding layer comprises a second opening and a second light shielding part, the orthographic projection of the first opening on the light-emitting surface of the display panel is positioned in the orthographic projection range of the second light shielding part on the light-emitting surface of the display panel, and the orthographic projection of the second opening on the light-emitting surface of the display panel is positioned in the orthographic projection range of the first light shielding part in the direction of the light-emitting surface of the display panel;
the peep-proof electrodes are positioned in the peep-proof area and on one side of the array substrate close to the liquid crystal, and at least part of the peep-proof electrodes are electrically connected;
the public electrode is positioned on the array substrate, and the peep-proof electrode and the public electrode form a horizontal electric field.
2. The display panel according to claim 1, wherein all the privacy electrodes are electrically connected.
3. The display panel according to claim 1, further comprising: the pixel electrode is positioned in the display area;
the pixel electrodes are arranged along a first direction to form pixel electrode rows, the anti-peeping electrodes are arranged along the first direction to form anti-peeping electrode rows, and the pixel electrode rows and the anti-peeping electrode rows are alternately arranged along a second direction; the first direction and the second direction intersect.
4. The display panel according to claim 3, further comprising: the first connecting electrode is electrically connected with the second connecting electrode;
the first connecting electrode is positioned on at least one side of the peep-proof electrode row along the second direction;
the second connecting electrode is positioned on at least one side of the peep-proof electrode row along the first direction.
5. The display panel according to claim 1, further comprising: the pixel electrode is positioned in the display area;
the pixel electrode and the peep-proof electrode are positioned on the same layer.
6. The display panel according to claim 1, further comprising: the conductive layer comprises a metal wire, at least part of the metal wire is positioned in the peep-proof area, and the metal wire is electrically connected with the peep-proof electrode.
7. The display panel of claim 6, wherein the conductive layer further comprises a gate trace, and the gate trace and the metal trace are fabricated in the same layer.
8. The display panel according to claim 7, wherein the metal traces in the privacy zone extend in the same direction as the gate traces.
9. The display panel according to claim 6, wherein an insulating layer is included between the conductive layer and the privacy electrode, the insulating layer includes a via, and the metal trace and the privacy electrode are electrically connected through the via.
10. The display panel according to claim 1, wherein the first light-shielding layer and the second light-shielding layer are both located on the color film substrate, or; the first shading layer and the second shading layer are both located on the array substrate.
11. The display panel according to claim 1, wherein the privacy electrode has a double domain structure.
12. The display panel according to claim 1, wherein the privacy electrode is of a single domain structure.
13. The display panel according to claim 1, further comprising: the pixel electrode is positioned in the display area;
an acute angle between the domain of the pixel electrode and the second direction is a, an acute angle between the domain of the privacy electrode and the second direction is b, and a difference between the a and the b is less than or equal to 5 °.
14. The display panel according to claim 13, wherein b is 0 ° ≦ 15 °.
15. The display panel according to claim 13, wherein the domain portion of the pixel electrode has the same inclination as the domain portion of the privacy electrode.
16. A display device characterized by comprising the display panel according to any one of claims 1 to 15.
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