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CN111736387A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN111736387A
CN111736387A CN202010621060.0A CN202010621060A CN111736387A CN 111736387 A CN111736387 A CN 111736387A CN 202010621060 A CN202010621060 A CN 202010621060A CN 111736387 A CN111736387 A CN 111736387A
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China
Prior art keywords
light
display panel
sub
spacer
shielding
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Granted
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CN202010621060.0A
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Chinese (zh)
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CN111736387B (en
Inventor
凌安恺
沈柏平
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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Priority to CN202010621060.0A priority Critical patent/CN111736387B/en
Publication of CN111736387A publication Critical patent/CN111736387A/en
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Publication of CN111736387B publication Critical patent/CN111736387B/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses a display panel and a display device, comprising: a first substrate and a second substrate; the pixel electrode comprises at least two domain parts and a first connecting part for connecting the at least two domain parts with each other, and in the same pixel electrode, the extending directions of the two adjacent domain parts are different; the data line comprises a main body part and a second connecting part, the main body part corresponds to the domain part, the second connecting part corresponds to the first connecting part, and the extending directions of the adjacent main body parts are different; a light blocking spacer positioned between the first substrate and the second substrate; the orthographic projection of the at least one shading spacer on the light-emitting surface of the display panel and the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel are at least partially overlapped. The display panel provided by the invention can improve the visual angle of the display panel, solve the light leakage problem of the liquid crystal display panel with the double-domain pixel structure in the prior art and reduce the loss of the aperture opening ratio.

Description

Display panel and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Conventional Display panels mainly include a Liquid Crystal Display (LCD) panel and an Organic Light Emitting Display (OLED) panel. Among them, the lcd panel has advantages of no radiation, light weight, and power saving, and is widely used in various information, communication, and consumer electronics products.
In order to improve the viewing angle of the display panel, the prior art proposes a liquid crystal display panel having a dual-domain pixel structure. The double-domain pixel structure is characterized in that two domains are formed in one pixel unit, and the visual angles of the two domains can be complementary in different visual angle directions, so that the visual angle problem in the horizontal direction or the vertical direction can be solved. However, for the lcd panel with the dual-domain pixel structure, the data line corresponding to the position between two domains in the pixel unit often has a light leakage problem due to an excessively large bending angle.
At present, the major practice is to increase the size of the black matrix at the position where the bending angle of the data line is too large for the liquid crystal display panel with the dual-domain pixel structure to improve the problem of light leakage, however, this arrangement method will result in the reduction of the aperture ratio. Therefore, how to provide a display panel and a display device to solve the light leakage problem of the liquid crystal display panel with the dual-domain pixel structure in the prior art and reduce the loss of the aperture ratio is a problem to be solved in the art.
Content of application
In view of the above, the present invention provides a display panel and a display device, which can improve the viewing angle of the display panel, solve the problem of light leakage of the liquid crystal display panel with the dual-domain pixel structure in the prior art, and reduce the loss of the aperture ratio.
In a first aspect, the present invention provides a display panel, comprising:
a first substrate and a second substrate;
the first substrate includes a plurality of scan lines and a plurality of data lines, the scan lines and the data lines crossing each other to define a plurality of sub-pixels; the sub-pixels are provided with pixel electrodes, each pixel electrode comprises at least two domain parts and a first connecting part for connecting the at least two domain parts with each other, and in the same pixel electrode, the extending directions of the two adjacent domain parts are different; the data line comprises a main body part and a second connecting part, the main body part corresponds to the domain part, the second connecting part corresponds to the first connecting part, and the extending directions of the adjacent main body parts are different;
the second substrate comprises a first shading structure, and the orthographic projection of the scanning line and the orthographic projection of the data line on the light-emitting surface of the display panel are positioned in the orthographic projection of the first shading structure on the light-emitting surface of the display panel; the first shading structure further comprises a plurality of openings, and the openings correspond to the pixel electrodes;
a light blocking spacer positioned between the first substrate and the second substrate; the orthographic projection of the at least one light-shading spacer on the light-emitting surface of the display panel and the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel are at least partially overlapped.
In a second aspect, the present invention further provides a display device including any one of the display panels described above.
Compared with the prior art, the display panel provided by the invention at least realizes the following beneficial effects:
according to the display panel provided by the embodiment of the invention, the orthographic projection of the at least one shading spacer on the light-emitting surface of the display panel is at least partially overlapped with the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel, so that light rays reflected by metal can be shielded at the position of the shading spacer, and the problem of light leakage is effectively solved; in addition, the shading spacer is arranged between the first substrate and the second substrate, and light reflected by the metal can be shaded by the shading spacer before reaching the first shading spacer, so that the size of the first shading structure expanding to the original light transmission area is reduced, the occupied area of the original light transmission area is reduced, and the loss of the aperture ratio is reduced. Namely, the display panel provided by the embodiment of the invention can solve the problem of light leakage of the liquid crystal display panel with the double-domain pixel structure in the prior art, and simultaneously reduce the loss of the aperture opening ratio.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a display panel according to the prior art;
FIG. 2 is a schematic sectional view taken along the line B-B' in FIG. 1;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic top view illustrating a first light shielding structure of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic sectional view taken along the direction C-C' in FIG. 3;
FIG. 6 is a schematic top view of a light-shielding spacer of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a pixel structure of a display panel according to an embodiment of the invention;
FIG. 8 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the invention;
FIG. 9 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 11 is an enlarged view of area E of FIG. 10;
FIG. 12 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 14 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 15 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 16 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
A display panel and a display device according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The liquid crystal display panel controls the transmission or shielding of light by controlling the turning of the liquid crystal molecules with birefringence, thereby realizing the display function. Conventionally, a liquid crystal display panel includes two substrates disposed opposite to each other, one of the substrates has a pixel electrode and a common electrode formed thereon, the other substrate has a black matrix, an opening area of the black matrix has a color resistor, so that light not blocked by the black matrix can show different colors after passing through the color resistor, a liquid crystal layer is disposed between the two substrates, and a certain voltage is applied between the pixel electrode and the common electrode through an integrated circuit to control the turning of liquid crystal molecules in the liquid crystal layer.
In order to improve the viewing angle of the display panel, a liquid crystal display panel having a dual-domain pixel structure is proposed in the prior art. Fig. 1 is a schematic structural diagram of a display panel in the related art, and fig. 2 is a schematic sectional diagram along a direction B-B 'in fig. 1. as shown in fig. 1 and 2, a display panel 00' includes a first substrate 01 'and a second substrate 02' and a liquid crystal layer (not shown) between the two substrates, the liquid crystal layer has a supporting spacer 14 'for maintaining a height of the liquid crystal display panel, and the supporting spacer 14' is disposed near an intersection of a scan line 11 'and a data line 12'.
The first substrate 01 ' includes a scan line 11 ' and a data line 12 ', the scan line 11 ' and the data line 12 ' are crossed in an insulated manner to define a plurality of sub-pixels 13 ', each sub-pixel 13 ' is provided with a pixel electrode 131 ' and a thin film transistor (not shown), the thin film transistor is electrically connected to the pixel electrode 131 ' through a via (not shown), the pixel electrode 131 ' has a double-domain structure, that is, one pixel electrode 131 ' includes a first domain (not shown) and a second domain (not shown), and extending directions of the two domains are crossed.
The double domain structure will be briefly described below. The liquid crystal molecules are approximately cylindrical and have a long axis and a short axis, and the liquid crystal molecules have different deflection directions and different optical path differences of light rays passing through the liquid crystal display panel, so that the viewing angle of the liquid crystal display panel has an anisotropic phenomenon. The principle of the double-domain structure is that two domains are formed in one pixel unit by setting a pixel electrode to be the double-domain structure, the rotating directions of liquid crystal molecules of the two domains are just opposite, and the visual angles of the two domains can be complementary in different visual angle directions, so that the visual angle problem in the horizontal direction or the vertical direction can be solved.
The second substrate 02 ' includes a black matrix 21 ' and a color resistor 22 ', wherein the black matrix 21 ' covers the data line 12 ' to prevent the data line 12 ' from reflecting light, which affects the display effect of the display panel 00 '. Here, for the sake of clarity of illustrating the prior art solution, the black matrix 21 'and the support spacer 14' in fig. 1 have no filling pattern, and are only illustrated in a wire frame and an ellipse, respectively.
The extending direction of the data line 12 ' is adapted to the extending direction of the pixel electrode 131 ', the data line 12 ' is bent between two adjacent scan lines 11 ', and the data line 12 ' is in a zigzag shape. However, for the lcd panel with the dual-domain pixel structure, the data line corresponding to the position between the two pixel domains has an excessively large bending angle, so that the distance between the edge position of the data line at the position and the edge position of the black matrix covering the data line in the extending direction of the scan line is reduced, and the black matrix cannot completely shield the light reflected by the metal, which often causes a light leakage problem.
At present, in the lcd panel with the dual-domain pixel structure, at the position where the bending angle of the data line is too large, such as the area a outlined by the dotted line in fig. 1, the arrangement size of the black matrix 21' is increased along the arrangement direction of the data line, so as to improve the problem of light leakage. For the lcd panel, light is emitted from the backlight, but not all light can pass through the panel, such as signal traces, transistors, etc., and the light passing through these areas is not controlled by voltage and cannot display correct gray scale, so the light is shielded by the black matrix to avoid interfering with other light-transmitting areas, and the ratio of the effective light-transmitting area to the total area is called aperture ratio. In the prior art, the arrangement size of the black matrix 21 'needs to be increased along the arrangement direction of the data lines, that is, the black matrix 21' will expand to the original light-transmitting region, occupying the area of the original light-transmitting region, and reducing the aperture ratio.
Therefore, how to provide a display panel and a display device to solve the light leakage problem of the liquid crystal display panel with the dual-domain pixel structure in the prior art and reduce the loss of the aperture ratio is a problem to be solved in the art.
Based on this, the present invention provides a display panel comprising: a first substrate and a second substrate; the first substrate comprises a plurality of scanning lines and a plurality of data lines, and the scanning lines and the data lines are insulated and crossed to limit a plurality of sub-pixels; the sub-pixels are provided with pixel electrodes, each pixel electrode comprises at least two domain parts and a first connecting part for connecting the at least two domain parts with each other, and in the same pixel electrode, the extending directions of the two adjacent domain parts are different; the data line comprises a main body part and a second connecting part, the main body part corresponds to the domain part, the second connecting part corresponds to the first connecting part, and the extending directions of the adjacent main body parts are different;
the second substrate comprises a first shading structure, and the orthographic projection of the scanning line and the data line on the light-emitting surface of the display panel is positioned in the orthographic projection of the first shading structure on the light-emitting surface of the display panel; the first shading structure also comprises a plurality of openings, and the openings correspond to the pixel electrodes;
a light blocking spacer positioned between the first substrate and the second substrate; the orthographic projection of the at least one shading spacer on the light-emitting surface of the display panel and the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel are at least partially overlapped.
The display panel provided by the invention can improve the visual angle of the display panel, solve the problem of light leakage of the liquid crystal display panel with the double-domain pixel structure in the prior art and reduce the loss of the aperture opening ratio.
Specifically, referring to fig. 3 to fig. 5, fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention; fig. 4 is a schematic top view illustrating a first light shielding structure of a display panel according to an embodiment of the present invention; fig. 5 is a schematic sectional view along C-C' in fig. 3. As shown in fig. 3 to 5, an embodiment of the present invention provides a display panel 00, including: a first substrate 01 and a second substrate 02; the first substrate 01 includes a plurality of scan lines 11 and a plurality of data lines 12, the scan lines 11 and the data lines 12 are insulated and crossed to define a plurality of sub-pixels 13; the sub-pixels 13 are provided with pixel electrodes 131, each pixel electrode 131 comprises at least two domains 1311 and a first connecting part 1312 for connecting the at least two domains 1311 with each other, and in the same pixel electrode 131, the extending directions of two adjacent domains 1311 are different; the data line 12 includes a main portion 121 and a second connection portion 122, the main portion 121 and the domain 1311 correspond to each other, the second connection portion 122 corresponds to the first connection portion 1312, and the extending directions of the adjacent main portions 121 are different;
the second substrate 02 includes a first light shielding structure 21, and an orthogonal projection of the scan line 11 and the data line 12 on the light exit surface of the display panel 00 is located in an orthogonal projection of the first light shielding structure 21 on the light exit surface of the display panel 00; the first light shielding structure 21 further includes a plurality of openings 211, and the openings 211 correspond to the pixel electrodes 131; in order to clearly illustrate the technical solution of the embodiment of the present invention, the black matrix 21 and the light-shielding spacer 14 in fig. 3 have no filling pattern, and are only illustrated by a wire frame and an ellipse.
A light blocking spacer 14 between the first substrate 01 and the second substrate 02; the orthographic projection of the at least one light-shielding spacer 14 on the light-emitting surface of the display panel 00 and the orthographic projection of the second connecting part 122 of the data line 12 on the light-emitting surface of the display panel 00 are at least partially overlapped.
Each pixel electrode 131 includes at least two domains 1311, for example, two domains, three domains, or more domains, which may be set according to actual requirements, and the embodiment of the present invention is described by taking a two-domain pixel structure as an example where the pixel electrode includes two domains. In one pixel electrode 131, two adjacent domains 1311 are connected to each other by a first connection portion 1312, and the two adjacent domains 1311 extend in different directions, that is, the two adjacent domains 1311 intersect in the extending direction, thereby forming a bent structure. The display panel 00 is further provided with a common electrode (not shown in the figure) corresponding to the pixel electrode 131, electric fields with different directions are formed between the common electrode and the pixel electrode 131 in the domain portions 1311 corresponding to the different pixel electrodes 131, under the action of the electric fields in different directions, liquid crystal molecules located in two adjacent domain portions 1311 rotate towards different initial directions, two domain regions are formed at the positions of the two adjacent domain portions, the rotation directions of the liquid crystal molecules in the two domain regions are just opposite, and the viewing angles of the two domain regions can be complementary in different viewing angle directions, so that the problem of the viewing angle in the horizontal direction or the vertical direction can be solved.
In the dual-domain pixel structure, the extending directions of two adjacent domains 1311 intersect to form a bent structure, and the extending direction of the data line 12 is adapted to the extending direction of the pixel electrode 131, so the data line 12 may be a broken line type, a wavy line type, and the like, which is not limited in the present invention, and the embodiment of the present invention only takes the data line 12 as the broken line type for illustration. The data line 12 includes a main body portion 121 and a second connecting portion 122, the main body portion 121 corresponds to the domain portion 1311, the second connecting portion 122 corresponds to the first connecting portion 1312, the extending directions of the adjacent main body portions 121 are different, that is, along the extending direction of the scan line 11, the projection of the domain portion 1311 of the pixel electrode 131 on the data line 12 corresponds to the main body portion 121 of the data line, and the projection of the first connecting portion 1312 of the pixel electrode 131 on the data line 12 corresponds to the second connecting portion 122 of the data line, where the correspondence refers to the correspondence in position, and the relationship between the area, size, number, and the like of the two is not limited as long as the correspondence in position is satisfied.
The first light shielding structure 21 further includes a plurality of openings 211, the openings 211 correspond to the pixel electrodes 131, and the color resistors 22 are disposed in the areas of the openings 211, so that light rays not shielded by the first light shielding structure 21 can show different colors after passing through the color resistors 22. The color of the color resistor may include a red color resistor, a green color resistor, and a blue color resistor, in other embodiments, the color of the color resistor may include a red color resistor, a green color resistor, a blue color resistor, and a white color resistor, which may be set according to actual requirements, which is not limited in the present invention.
The light-shielding spacer 14 has a light-shielding function. Alternatively, the light-shielding spacer may be a photosensitive resin composition having a light-shielding property because it contains a colorant or a photosensitive resin having an original color, and the photosensitive resin composition may be formed into a spacer having a desired height by photolithography, which is simple in manufacturing process and low in cost. The light-shielding spacer may be made of other materials or may be formed by other processes, which is not limited in the present invention as long as the light-shielding function is satisfied. The light-shielding spacer 14 is located between the first substrate 01 and the second substrate 02, that is, the light-shielding spacer 14 may be disposed on the first substrate 01, the second substrate 02, or partially disposed on the first substrate 01 and partially disposed on the second substrate 02, and only the light-shielding spacer 14 is illustrated as being disposed on the first substrate 01 in fig. 3 and 4.
The orthographic projection of the at least one light-shielding spacer 14 on the light-emitting surface of the display panel 00 and the orthographic projection of the second connecting portion 122 of the data line 12 on the light-emitting surface of the display panel 00 are at least partially overlapped, that is, the projections of the two may be partially overlapped, or the orthographic projection of the second connecting portion 122 on the light-emitting surface of the display panel 00 is located in the orthographic projection of the first light-shielding spacer 14 on the light-emitting surface of the display panel 00. So, because both projections are at least partly overlapped, the light that the metal reflection came can be sheltered from in the position department of shading spacer, avoids this partial light to see through from the light transmission region to can effectual solution light leak problem.
In addition, referring to fig. 2 and 5, in the prior art, the light reflected from the metal reaches the position of the black matrix 21 'of the second substrate 02' and is blocked, and the distance between the edge position of the second connecting portion 122 'and the same side edge position of the black matrix 21' covering the second connecting portion 122 'is D1'. In the embodiment of the present invention, since the light-shielding spacer 14 is disposed between the first substrate 01 and the second substrate 02, the light reflected from the metal is shielded at the position of the light-shielding spacer 14, and the distance between the edge position of the second connection portion 122 and the edge position of the same side of the first light-shielding structure 21 covering the second connection portion 122 is D1, when the light reflected from the metal at the same angle is shielded, D1 < D1', that is, along the arrangement direction of the data lines, the size of the first light-shielding structure at the position of the second connection portion corresponding to the data lines in the embodiment of the present invention is smaller than the size of the black matrix at the position of the second connection portion corresponding to the data lines in the prior art, that is, the embodiment of the present invention can reduce the size of the first light-shielding structure expanding to the original light-transmitting area, reduce the occupied area of the original light-transmitting area, and can solve the problem of the liquid crystal display panel with the dual-domain pixel structure in the prior art, the loss of the aperture ratio is reduced.
It should be noted that the same side edge here refers to the edge on the same side as the black matrix and the data line, for example, the right edge, and the description is only given by taking this as an example, and may refer to both the left edge. The black matrix covers the second connection portion here means that an orthogonal projection of the second connection portion on the light-emitting surface of the display panel is located within an orthogonal projection of the black matrix on the light-emitting surface of the display panel.
According to the display panel provided by the embodiment of the invention, the orthographic projection of the at least one shading spacer on the light-emitting surface of the display panel is at least partially overlapped with the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel, so that light rays reflected by metal can be shielded at the position of the shading spacer, and the problem of light leakage is effectively solved; in addition, the shading spacer is arranged between the first substrate and the second substrate, and light reflected by the metal can be shaded by the shading spacer before reaching the first shading spacer, so that the size of the first shading structure expanded to the original light-transmitting area is reduced, the occupied area of the original light-transmitting area is reduced, and the loss of the aperture ratio is reduced. That is, the display panel provided by the embodiment of the invention can improve the viewing angle of the display panel, solve the problem of light leakage of the liquid crystal display panel with the double-domain pixel structure in the prior art, and reduce the loss of the aperture opening ratio.
Optionally, the orthographic projections of all the light-shielding spacers on the light-emitting surface of the display panel and the orthographic projections of the second connecting parts of the data lines on the light-emitting surface of the display panel are at least partially overlapped, so that a shielding structure can be configured at a position where more data lines have too large bending angles, and light reflected by the metal can be shielded at the position of the light-shielding spacers, so that the part of light is prevented from being transmitted out from the light-transmitting area, and the problem of light leakage can be effectively solved.
Alternatively, with continued reference to fig. 5, the light-shielding spacers 14 in the display panel 00 are disposed on the first substrate 01, that is, the light-shielding spacers 14 are disposed on a side of the first substrate 01 facing the second substrate 02. The light-shielding spacer 14 is disposed on the first substrate 01, so that the problem of light leakage of the liquid crystal display panel with the dual-domain pixel structure in the prior art can be solved, and loss of the aperture ratio is reduced. The surface of the light-shielding spacer adjacent to the substrate is a first surface, and the surface of the light-shielding spacer away from the substrate is a second surface. The light-shielding spacer 14 is disposed on the first substrate 01, the light reflected from the metal is shielded by the first surface of the light-shielding spacer 14, and the first surface has a larger size than the second surface, so that the light reflected from the metal can be better shielded, and the light leakage problem can be solved more effectively.
Optionally, the light-shielding spacer 14 is at least one of red, orange, blue, purple, gray, and black. Alternatively, the light-shielding spacer may be a photosensitive resin composition, and a colorant capable of increasing Optical Density (OD) is selectively used for the light-shielding spacer to obtain light-shielding characteristics. The colorant is one or more selected from red colorant, orange colorant, blue colorant, purple colorant, gray colorant, and black colorant. The red colorant, the orange colorant, the blue colorant, the purple colorant, the gray colorant and the black colorant can be pigments or dyes, and the light-shading spacer material is simple and low in cost and can meet the requirement of a display panel on the light-shading performance. In addition, the photosensitive resin composition can form a spacer with required height by a photoetching mode, and has simple manufacturing process and lower cost. Alternatively, the photosensitive resin composition may be a material having a color and a light shielding effect, for example, a color such as gray, purple, or black, and the light shielding spacer may be formed by other materials or other processes.
Alternatively, referring to fig. 6, fig. 6 is a schematic top view of a light-shielding spacer of a display panel according to an embodiment of the present invention, as shown in fig. 6, an orthographic projection of the light-shielding spacer 14 on the light-emitting surface of the display panel 00 may be in various shapes, such as one or more of a circle, an ellipse, a square, a rectangle, a hexagon, or other polygon, a stripe, and a block. In the double-domain pixel structure, the extending directions of two adjacent domains are crossed to form a bending structure, and the extending direction of the data line is adapted to the extending direction of the pixel electrode, so that the data line can be of a fold line type, a wave line type and the like, when the orthographic projection of the shading spacer on the light-emitting surface of the display panel is of a strip shape or a block shape, namely the shading spacer is of the strip shape or the block shape, the arrangement mode of the shading spacer can be adapted to the extending direction of the data line, light rays reflected by metal can be effectively prevented from being transmitted out of a light-transmitting area, the occupied area of the original light-transmitting area is reduced, and the loss of the aperture opening ratio is reduced. Of course, the light-shielding spacer may have other shapes, and may be configured according to actual conditions as long as effective light shielding is achieved, which is not limited by the present invention.
Alternatively, with continued reference to fig. 3 and 5, the at least one light-shielding spacer 14 serves to maintain a distance between the first substrate 01 and the second substrate 02, i.e., the at least one light-shielding spacer 14 serves both a light-shielding function and a supporting function.
Referring to fig. 1 and 2, in the related art, a support spacer 14 ' is disposed near an intersection of a scan line 11 ' and a data line 12 '. However, as the pixels in the display panel are highly refined, the interval between the data lines 12 'becomes narrower, and the distance between the through hole and the support spacer is increased by protruding the support spacer 14' toward the light transmitting region. However, when the support spacer 14 ' protrudes into the light-transmitting region, the area of the original light-transmitting region is occupied, and the orientation of the liquid crystal layer in the vicinity of the support spacer 14 ' is likely to be disturbed, so that the region needs to be shielded by the black matrix 21 ', and the aperture ratio is reduced.
In the embodiment of the present invention, referring to fig. 3 and 5, at least one light-shielding spacer 14 is used to maintain a distance between the first substrate 01 and the second substrate 02, that is, at least one light-shielding spacer 14 has both a light-shielding function and a supporting function, that is, at least one light-shielding spacer 14 can be reused as a supporting spacer, so that the supporting spacers originally disposed near the intersection of the scan line 11 and the data line 12 can be reduced, the area of the light-transmitting region occupied by the supporting spacer 14 protruding to the light-transmitting region can be reduced, and the aperture ratio can be increased. In addition, the data line 12 is covered by the first light shielding structure 21, and the orthographic projection of the light shielding spacer 14 on the light emitting surface of the display panel is at least partially overlapped with the orthographic projection of the second connecting portion 122 on the light emitting surface of the display panel, that is, at least part of the light shielding spacer 14 is covered by the first light shielding structure 21, so that the region of the liquid crystal layer near the light shielding spacer 14 which is multiplexed as a support spacer with disordered orientation can be shielded by using part or all of the first light shielding structure 21, and the aperture ratio can be further improved.
Alternatively, referring to fig. 7, fig. 7 is a schematic diagram of a pixel structure of a display panel according to an embodiment of the present invention, as shown in fig. 7, for a same sub-pixel 13, two corresponding main body portions of the sub-pixel 13 are a first main body portion 1211 and a second main body portion 1212, respectively, the second connection portion 122 includes a first sub-connection portion 1221 and a second sub-connection portion 1222, and the first sub-connection portion 1221 is located between the first main body portion 1211 and the second sub-connection portion 1222; the extending direction of the first sub-connecting portion 1221 is the same as the extending direction of the first body portion 1211, and the extending direction of the second sub-connecting portion 1222 is the same as the extending direction of the second body portion 1212. That is, for the same sub-pixel 13, the inclination angles of the first main body 1211 and the first sub-connecting portion 1221 are the same, the inclination angles of the second main body 1212 and the second sub-connecting portion 1222 are the same, the whole structure is a zigzag type, the first light shielding structure 21 and the pixel electrode 131 can also be adapted to be a zigzag type, the manufacturing method is simple, and the process cost is saved. The pixel electrode 131 is configured as a zigzag type double-domain structure, two domains are formed in one pixel unit, the rotation directions of liquid crystal molecules of the two domains are just opposite, and the viewing angles of the two domains can be complementary in different viewing angle directions, so that the problem of the viewing angle in the horizontal direction or the vertical direction can be solved.
Optionally, referring to fig. 8, fig. 8 is a schematic diagram of a pixel structure of another display panel provided by the present invention, in fig. 8, for a same sub-pixel 13, two corresponding main body portions of the sub-pixel 13 are a first main body portion 1211 and a second main body portion 1212, respectively, the second connection portion 122 includes a first sub-connection portion 1221 and a second sub-connection portion 1222, and the first sub-connection portion 1221 is located between the first main body portion 1211 and the second sub-connection portion 1222; the extending direction of the first sub-connecting portion 1221 is different from the extending direction of the first body portion 1211, and/or the extending direction of the second sub-connecting portion 1222 is different from the extending direction of the second body portion 1212. Fig. 8 illustrates only an example in which the extending direction of the first sub-connecting portion 1221 is different from the extending direction of the first body portion 1211, and the extending direction of the second sub-connecting portion 1222 is different from the extending direction of the second body portion 1212. That is, a corner is formed between the first body 1211 and the second body 1222, which can effectively improve the problem of scratch mura when the lcd panel is pressed. trace mura is a scratch (i.e., black stripe) appearing on a display panel when a finger or a pressure head is stroked on the panel, and the scratch gradually disappears with time, and microscopically shows that liquid crystal molecules are disorganized and aligned, resulting in brightness inconsistent with an unscrambled area.
Fig. 7 and 8 are two arrangements of the dual-domain pixel structure, in which the extending directions of two adjacent domains are different, that is, the extending directions of two adjacent domains intersect, the display panel is further provided with a common electrode (not shown in the figure) corresponding to the pixel electrode, electric fields with different directions are formed between the common electrode and the pixel electrode in the domains corresponding to the different pixel electrodes, and liquid crystal molecules in the two adjacent domains rotate toward different initial directions under the action of the electric fields with different directions, so that the two adjacent domains form two domains to compensate for viewing angles in different directions. A proper double-domain pixel structure arrangement mode can be selected according to actual requirements and applied to the display panel.
Optionally, referring to fig. 9, fig. 9 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention, as shown in fig. 9, the first light shielding structure 21 includes a first sub light shielding structure 212, and an orthogonal projection of the main portion 121 and the second connecting portion 122 of the data line 12 on the light emitting surface of the display panel is within an orthogonal projection of the first sub light shielding structure 212 on the light emitting surface of the display panel; along the arrangement direction of the data lines, the width of the first sub light shielding structure 212 corresponding to the main body portion 121 is d1, the width of the first sub light shielding structure 212 corresponding to the second connecting portion 122 is d2, K ═ d2-d1|/d2, and K is greater than or equal to 0 and less than or equal to 5%. That is, along the arrangement direction of the data lines, the width d1 of the first sub light shielding structure 212 corresponding to the main body 121 and the width d2 of the first sub light shielding structure 212 corresponding to the second connecting portion 122 are substantially equal within an error range, that is, the first sub light shielding structure 212 corresponding to the second connecting portion 122 can be set to have the same size as compared with the first sub light shielding structure 212 corresponding to the main body 121, that is, at the position corresponding to the second connecting portion 122, the first sub light shielding structure 211 does not need to be expanded to the original light transmission region, the occupied area of the light transmission region is reduced as much as possible, the problem of light leakage of the liquid crystal display panel with the dual-domain pixel structure in the prior art is solved, the aperture ratio is increased, and the manufacturing process is simple. Optionally, K is more than or equal to 0 and less than or equal to 1 percent, d1 and d2 can be equal in a smaller process error range, the aperture opening ratio is further improved, the process is simple, and the cost is saved.
Alternatively, referring to fig. 10 and 11, fig. 10 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the invention, and fig. 11 is an enlarged view of a region E in fig. 10, as shown in fig. 10 and 11, a width of the light-shielding spacer 14 corresponding to the bending position F of the second connecting portion 122 is d3, and d3 ≧ d 2. The second connection portion 122 includes a first sub-connection portion 1221 and a second sub-connection portion 1222, and an F position therebetween is a bending position of the second connection. At the bent position corresponding to the second connecting portion 122, i.e., the position F, the width of the light-shielding spacer 14 along the arrangement direction of the data lines is d3, and d3 is greater than or equal to d 2. The bending position F of the second connecting portion 122 is too large in bending angle, and light reflected by metal is easy to leak, so that the shading design at the position is particularly important, and the shading spacer 14 is arranged at the bending position F of the second connecting portion 122, so that the light leakage problem can be effectively solved. In addition, since the light-shielding spacer 14 is disposed at the position corresponding to the second connecting portion 122, the light reflected by the metal is shielded at the position of the light-shielding spacer 14, and when d3 is d2, the outward expansion size of the first sub light-shielding structure 212 at the position corresponding to the second connecting portion 122 can be reduced, even not, the loss of the aperture ratio can be reduced. When the light-shielding spacer 14 is reused as a supporting spacer, since a sufficiently large size is required to support the light-shielding spacer, d3 > d2 may be set, that is, the light-shielding spacer 14 may extend toward the light-transmitting region, but since the light-shielding spacer 14 is reused as a supporting spacer, the supporting spacer originally disposed near the intersection of the scan line and the data line may be reduced, and thus, the loss of the aperture ratio may be reduced, or even the aperture ratio may be increased.
Optionally, along the arrangement direction of the data lines, the width of the first sub light-shielding structure corresponding to the main body portion is d1, the width of the light-shielding spacer corresponding to the bending position of the second connecting portion is d3, and d3 is greater than or equal to d 1. Because the width d1 of the first sub light shielding structure corresponding to the main body part and the width d2 of the first sub light shielding structure corresponding to the second connecting part are approximately equal to each other within the error range, d3 is more than or equal to d1, the problem of light leakage can be effectively solved, and the loss of the aperture opening ratio can be reduced. When the light-shielding spacers are multiplexed as the supporting spacers, even though the light-shielding spacers 14 may be expanded toward the light-transmitting region, the light-shielding spacers are multiplexed as the supporting spacers, so that the number of the supporting spacers originally disposed near the intersection of the scan line and the data line may be reduced, and thus, the loss of the aperture ratio may be reduced, or even the aperture ratio may be improved.
Optionally, referring to fig. 12, fig. 12 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention, as shown in fig. 12, the first light shielding structure 21 further includes a second sub light shielding structure 213, and an orthogonal projection of the first connection portion 1312 of the pixel electrode 131 on the light emitting surface of the display panel is located in an orthogonal projection of the second sub light shielding structure 213 on the light emitting surface of the display panel. Since the pixel electrode 131 includes domains with different extending directions, electric fields with different directions can be generated in different regions within one sub-pixel region, so that liquid crystal molecules of different domains in the sub-pixel region rotate to different directions, and viewing angles of the two domains can be complementary, thereby solving the problem of viewing angles in the horizontal or vertical direction. However, at the boundary of the two domains, the liquid crystal cannot rotate because the forces of the liquid crystal in the vertical direction, which are generated by the pixel electrodes of the two domains, are opposite in the same direction, and the liquid crystal at this position cannot change the polarization direction of linearly polarized light, so that light cannot pass through the upper polarizer at all gray scales except for the zero-order gray scale, that is, a black line is generated at the boundary of the two domains. Similarly, the liquid crystal near the boundary is affected by the forces of the electrodes in the two domains, and the liquid crystal is difficult to rotate. The above phenomenon is called disclination (disclination) phenomenon. In order to ensure the pixel aperture ratio and the pixel transmittance, the second sub light-shielding structure 213 is used to shield the boundary between the two domains, so that the black-state brightness of the boundary between the two domains is improved, and the contrast is improved.
Optionally, referring to fig. 13, fig. 13 is a schematic view of a pixel structure of another display panel according to an embodiment of the present invention, and as shown in fig. 13, an orthogonal projection of the light shielding spacer 14 on the light exit surface of the display panel in fig. 13 at least partially overlaps an orthogonal projection of the second sub light shielding structure 213 on the light exit surface of the display panel.
Referring to fig. 1 and 2, in the related art, a support spacer 14 ' is disposed near an intersection of a scan line 11 ' and a data line 12 '. However, as the pixels in the display panel are highly refined, the interval between the data lines 12 'becomes narrower, and the distance between the through hole and the support spacer is increased by protruding the support spacer 14' toward the light transmitting region. However, when the support spacer 14 ' protrudes into the light-transmitting region, the area of the original light-transmitting region is occupied, and the orientation of the liquid crystal layer in the vicinity of the support spacer 14 ' is likely to be disturbed, so that the region needs to be shielded by the black matrix 21 ', and the aperture ratio is reduced.
In the embodiment of the present invention, the at least one light-shielding spacer 14 is used to maintain the distance between the first substrate 01 and the second substrate 02, that is, the at least one light-shielding spacer 14 has both a light-shielding effect and a supporting effect, that is, the at least one light-shielding spacer 14 can be reused as a supporting spacer, so that the supporting spacers originally disposed near the intersection of the scan line 11 and the data line 12 can be reduced, the area of the light-transmitting region occupied by the protruding supporting spacer to the light-transmitting region can be reduced, and the aperture ratio can be increased. Since the orthographic projection of the light-shielding spacer 14 on the light-emitting surface of the display panel and the orthographic projection of the second sub light-shielding structure 213 on the light-emitting surface of the display panel are at least partially overlapped, the region with disordered orientation of the liquid crystal layer near the light-shielding spacer 12 which is multiplexed as a support spacer can be shielded by the second sub light-shielding structure 213, and the aperture ratio is further improved. Thirdly, since the second sub light-shielding structure 213 extends along the arrangement direction of the data lines, the light-shielding spacer 14 can be extended toward the region where the second sub light-shielding structure 213 is located, so as to improve the supporting performance thereof without affecting the aperture ratio while ensuring the light-shielding effect thereof.
Optionally, referring to fig. 14, fig. 14 is a schematic view of a pixel structure of another display panel according to an embodiment of the present invention, as shown in fig. 14, at least two light-shielding spacers 14 are disposed in at least one sub-pixel, and along an extending direction of the second sub light-shielding structure 213, orthographic projections of the at least two light-shielding spacers 14 corresponding to the same sub-pixel on the light-emitting surface of the display panel and orthographic projections of the second sub light-shielding structure 213 on the light-emitting surface of the display panel are both at least partially overlapped. As shown in fig. 14, at least two light-shielding spacers 14 corresponding to the same sub-pixel may be respectively located at the second connection portions of the data lines at the left and right sides of the sub-pixel, and are both overlapped with the second sub light-shielding structure 213 in a projection manner, when at least one light-shielding spacer 14 is used to maintain the distance between the first substrate 01 and the second substrate 02, that is, at least one light-shielding spacer 14 has a light-shielding effect and can also play a supporting role, that is, at least one light-shielding spacer 14 may be reused as a supporting spacer, so that the supporting spacer originally disposed near the intersection of the scan line 11 and the data line 12 may be reduced, the area of the light-transmitting region occupied by the protruding supporting spacer to the light-transmitting region may be reduced, and the aperture ratio may be increased. Since the orthographic projection of the light-shielding spacer 14 on the light-emitting surface of the display panel and the orthographic projection of the second sub light-shielding structure 213 on the light-emitting surface of the display panel are at least partially overlapped, the region with disordered orientation of the liquid crystal layer near the light-shielding spacer 12 which is multiplexed as a support spacer can be shielded by the second sub light-shielding structure 213, and the aperture ratio is further improved. Third, since the second sub light-shielding structure 213 extends along the arrangement direction of the data lines, the plurality of light-shielding spacers 14 can realize multi-point support without affecting the aperture ratio while ensuring the light-shielding effect thereof, which can achieve better support effect.
Alternatively, referring to fig. 15, fig. 15 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention, as shown in fig. 15, a light-shielding spacer 14 is disposed in at least one sub-pixel 13, a length of a second sub light-shielding structure 213 corresponding to the sub-pixel 13 is L1, and a length of the light-shielding spacer 14 corresponding to the sub-pixel 13 is L2, L2 > L1, so that the aperture ratio is not affected while the light-shielding effect of the light-shielding spacer 14 is ensured, and in addition, since the second sub light-shielding structure 213 extends along the arrangement direction of the data lines and L2 is greater than L1, that is, in the arrangement direction along the data lines, the size of the second sub light-shielding structure 213 is increased, the supporting performance of the light-shielding spacer 14 can be increased, thereby further reducing the supporting spacer originally disposed near the intersection of the scan line 11 and the data line 12, thereby reducing the area of the light-transmitting region occupied by the support spacers protruding towards the light-transmitting region and further improving the aperture ratio.
Alternatively, referring to fig. 16, fig. 16 is a schematic diagram of a pixel structure of another display panel according to an embodiment of the present invention, as shown in fig. 16, along the extending direction perpendicular to the second sub light shielding structure 213, the width of the second sub light shielding structure 213 is d4, the width of the light shielding spacer 14 is d5, and d5 ≦ d4, so that the light shielding spacer 14 does not exceed the range of the second sub light shielding structure 213 in the direction perpendicular to the second sub light shielding structure 213, and therefore, the light shielding spacer 14 does not need to extend to the light transmitting region in the extending direction perpendicular to the second sub light shielding structure 213, and the influence on the aperture ratio is reduced; in addition, when the at least one light-shielding spacer 14 is used to maintain the distance between the first substrate and the second substrate, that is, the at least one light-shielding spacer 14 has both the light-shielding function and the supporting function, that is, the at least one light-shielding spacer 14 can be reused as a supporting spacer, the supporting spacers originally disposed near the intersection of the scan line 11 and the data line 12 can be reduced, the area of the light-transmitting region occupied by the protruding supporting spacers to the light-transmitting region can be reduced, and the aperture ratio can be increased. Since d5 is d4, the region in which the alignment of the liquid crystal layer is disturbed in the vicinity of the light-shielding spacer 12 which supports the spacer is multiplexed, and can be shielded by the second sub light-shielding structure 213, thereby further improving the aperture ratio.
Alternatively, in fig. 13-16, the light-shielding spacer 14 in the display panel is disposed on the first substrate 01, that is, the light-shielding spacer 14 is disposed on a side of the first substrate 01 facing the second substrate 02. The light-shielding spacer 14 is disposed on the first substrate 01, so that the problem of light leakage of the liquid crystal display panel with the dual-domain pixel structure in the prior art can be solved, and loss of the aperture ratio is reduced. The surface of the light-shielding spacer adjacent to the substrate is a first surface, and the surface of the light-shielding spacer away from the substrate is a second surface. The light-shielding spacer 14 is disposed on the first substrate 01, the light reflected from the metal is shielded by the first surface of the light-shielding spacer 14, and the first surface has a larger size than the second surface, so that the light reflected from the metal can be better shielded, and the light leakage problem can be solved more effectively.
Optionally, referring to fig. 17, fig. 17 is a schematic view of a pixel structure of another display panel according to an embodiment of the present invention, and as shown in fig. 17, an orthogonal projection of the first connection portion 1312 of the pixel electrode 131 on the light exit surface of the display panel is located on an orthogonal projection of the light-shielding spacer 14 on the light exit surface of the display panel. In the embodiment of the present invention, when the light-shielding spacer 14 has a stronger light-shielding performance, the light-shielding spacer 14 may be used to replace the transverse second sub light-shielding structure, so as to shield the boundary between the two domains of the sub-pixel 13, so that the black-state brightness of the boundary between the two domains is improved, and the contrast is improved. In addition, since the light-shielding spacer 14 is disposed between the first substrate and the second substrate, the light reflected from the metal will be shielded at the position of the light-shielding spacer 13, and compared to the case that the light reflected from the metal is shielded only at the position of the black matrix of the color filter substrate in the prior art, the setting size of the light-shielding spacer 13 can be the setting size of the black matrix in the prior art along the arrangement direction perpendicular to the data line under the condition of realizing light shielding for the light at the same angle, so that the problem of light leakage of the liquid crystal display panel with the dual-domain pixel structure in the prior art can be solved, and the loss of the aperture ratio can be reduced, and even the aperture ratio can be improved.
Optionally, when the light-shielding spacer 14 is disposed on the first substrate, the surface size of the first substrate of the light-shielding spacer is larger, that is, the effective light-shielding area is larger, and the light reflected by the metal is shielded by the first surface of the light-shielding spacer 14, so that the light reflected by the metal can be better shielded, the size of the light-shielding spacer is further reduced, and the aperture ratio is improved.
Optionally, when the at least one light-shielding spacer 14 is used to maintain a distance between the first substrate and the second substrate, that is, the at least one light-shielding spacer 14 has both a light-shielding function and a supporting function, that is, the at least one light-shielding spacer 14 can be reused as a supporting spacer, the supporting spacers originally disposed near the intersection of the scan line 11 and the data line 12 can be reduced, and thus the area of the light-transmitting region occupied by the supporting spacers protruding into the light-transmitting region is reduced, and the aperture ratio can be increased. Since the orthographic projection of the light-shielding spacer 14 on the light-emitting surface of the display panel and the orthographic projection of the first connecting portion 1312 on the light-emitting surface of the display panel at least partially overlap each other, the light-shielding spacer is multiplexed into a region in which the alignment of the liquid crystal layer is disturbed in the vicinity of the light-shielding spacer 12 supporting the spacer, and the display effect is not affected even if the light-shielding spacer is located in the region where the first connecting portion 1312 is located. Third, since the first connecting portions 1312 extend along the arrangement direction of the data lines, the plurality of light-shielding spacers 14 can be extended toward the regions where the first connecting portions 1312 are located, thereby providing a better supporting function without affecting the aperture ratio while ensuring the light-shielding function. Note that, in fig. 7 to 17, the black matrix 21 and the light-shielding spacer 14 are not filled with a pattern, but are illustrated with a frame and an ellipse, respectively, in order to clearly illustrate the technical solution of the embodiment of the present invention.
Referring to fig. 18, fig. 18 is a schematic structural diagram of a display device according to an embodiment of the present invention. Fig. 18 shows a display device including the display panel according to any of the above embodiments of the present invention. The embodiment of fig. 18 is only an example of a mobile phone, and the display device is described, it is to be understood that the display device provided in the embodiment of the present invention may be other display devices having a display function, such as a computer, a television, a vehicle-mounted display device, and a curved display device, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in the foregoing embodiments, which is not repeated herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following advantages,
according to the display panel and the display device provided by the invention, the orthographic projection of the at least one shading spacer on the light-emitting surface of the display panel is at least partially overlapped with the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel, so that light rays reflected by metal can be shielded at the position of the shading spacer, and the problem of light leakage is effectively solved; in addition, the shading spacer is arranged between the first substrate and the second substrate, and light reflected by the metal can be shaded by the shading spacer before reaching the first shading spacer, so that the size of the first shading structure expanded to the original light-transmitting area is reduced, the occupied area of the original light-transmitting area is reduced, and the loss of the aperture ratio is reduced. That is, the display panel provided by the embodiment of the invention can improve the viewing angle of the display panel, solve the problem of light leakage of the liquid crystal display panel with the double-domain pixel structure in the prior art, and reduce the loss of the aperture opening ratio.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (15)

1. A display panel, comprising:
a first substrate and a second substrate;
the first substrate includes a plurality of scan lines and a plurality of data lines, the scan lines and the data lines crossing each other to define a plurality of sub-pixels; the sub-pixels are provided with pixel electrodes, each pixel electrode comprises at least two domain parts and a first connecting part for connecting the at least two domain parts with each other, and in the same pixel electrode, the extending directions of the two adjacent domain parts are different; the data line comprises a main body part and a second connecting part, the main body part corresponds to the domain part, the second connecting part corresponds to the first connecting part, and the extending directions of the adjacent main body parts are different;
the second substrate comprises a first shading structure, and the orthographic projection of the scanning line and the orthographic projection of the data line on the light-emitting surface of the display panel are positioned in the orthographic projection of the first shading structure on the light-emitting surface of the display panel; the first shading structure further comprises a plurality of openings, and the openings correspond to the pixel electrodes;
a light blocking spacer positioned between the first substrate and the second substrate; the orthographic projection of the at least one light-shading spacer on the light-emitting surface of the display panel and the orthographic projection of the second connecting part of the data line on the light-emitting surface of the display panel are at least partially overlapped.
2. The display panel according to claim 1,
the light shielding spacer is arranged on the first substrate.
3. The display panel according to claim 1,
the light shielding spacer is at least one of red, orange, blue, purple, gray and black.
4. The display panel according to claim 1,
corresponding to the same sub-pixel, two main body parts corresponding to the sub-pixel are respectively a first main body part and a second main body part, the second connecting part comprises a first sub-connecting part and a second sub-connecting part, and the first sub-connecting part is positioned between the first main body part and the second sub-connecting part;
the extending direction of the first sub-connecting portion is the same as the extending direction of the first main body portion, and the extending direction of the second sub-connecting portion is the same as the extending direction of the second main body portion.
5. The display panel according to claim 1,
corresponding to the same sub-pixel, two main body parts corresponding to the sub-pixel are respectively a first main body part and a second main body part, the second connecting part comprises a first sub-connecting part and a second sub-connecting part, and the first sub-connecting part is positioned between the first main body part and the second sub-connecting part;
the extending direction of the first sub-connecting portion is different from the extending direction of the first main body portion, and/or the extending direction of the second sub-connecting portion is different from the extending direction of the second main body portion.
6. The display panel according to claim 1,
the main body part and the second connecting part of the data line are orthographically projected on the light-emitting surface of the display panel and are positioned in the orthographically projected part of the first sub light-shielding structure on the light-emitting surface of the display panel;
along the arrangement direction of the data lines, the width of the first sub light shielding structure corresponding to the main body part is d1, the width of the first sub light shielding structure corresponding to the second connecting part is d2, K is | d2-d1|/d2, and K is greater than or equal to 0 and less than or equal to 5%.
7. The display panel according to claim 6,
the width of the light shielding spacer at the bending position corresponding to the second connecting part along the arrangement direction of the data lines is d3, and d3 is more than or equal to d 2.
8. The display panel according to claim 1,
the first shading structure further comprises a second sub shading structure, and the orthographic projection of the first connecting part of the pixel electrode on the light-emitting surface of the display panel is positioned in the orthographic projection of the second sub shading structure on the light-emitting surface of the display panel.
9. The display panel according to claim 8,
the orthographic projection of the light shielding spacer on the light emergent surface of the display panel is at least partially overlapped with the orthographic projection of the second sub light shielding structure on the light emergent surface of the display panel.
10. The display panel according to claim 9,
at least two light-shielding spacers are arranged in at least one sub-pixel, and the orthographic projections of the at least two light-shielding spacers corresponding to the same sub-pixel on the light-emitting surface of the display panel and the orthographic projections of the second sub-light-shielding structures on the light-emitting surface of the display panel are at least partially overlapped along the extending direction of the second sub-light-shielding structures.
11. The display panel according to claim 9,
and at least one of the sub-pixels is provided with one light shielding spacer, the length of the second sub-light shielding structure corresponding to one sub-pixel along the extension direction of the second sub-light shielding structure is L1, the length of the light shielding spacer corresponding to the sub-pixel is L2, and L2 is more than L1.
12. The display panel according to claim 8,
in the same sub-pixel, along the extending direction perpendicular to the second sub-shading structure, the width of the second sub-shading structure is d4, the width of the shading spacer is d5, and d5 is not less than d 4.
13. The display panel according to claim 1,
the orthographic projection of the first connecting part of the pixel electrode on the light-emitting surface of the display panel is positioned in the orthographic projection of the shading spacer on the light-emitting surface of the display panel.
14. The display panel according to claim 1,
at least one of the light blocking spacers is used to maintain a distance between the first substrate and the second substrate.
15. A display device comprising the display panel according to any one of claims 1 to 14.
CN202010621060.0A 2020-06-30 2020-06-30 Display panel and display device Active CN111736387B (en)

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