CN108132554B - Display device - Google Patents
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- CN108132554B CN108132554B CN201810002520.4A CN201810002520A CN108132554B CN 108132554 B CN108132554 B CN 108132554B CN 201810002520 A CN201810002520 A CN 201810002520A CN 108132554 B CN108132554 B CN 108132554B
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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
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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
- G02F1/13338—Input devices, e.g. touch panels
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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
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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
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/16755—Substrates
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1685—Operation of cells; Circuit arrangements affecting the entire cell
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a display device, belonging to the technical field of display, comprising: a display panel and an opposing substrate which are disposed opposite to each other; the display panel comprises a display area and a non-display area surrounding the display area; the display area comprises at least one section of curve edge; the opposite substrate comprises a light-transmitting area and a light-shielding area, and the light-transmitting area covers the display area in the direction vertical to the display panel; the display device comprises at least one alignment mark group, wherein the alignment mark group is used for aligning the display panel and the opposite substrate; the alignment mark group comprises a first alignment mark and a second alignment mark which are correspondingly arranged; the first alignment mark is arranged in a non-display area of the display panel, and the second alignment mark is arranged in a light shielding area of the opposite substrate. Compared with the prior art, the alignment precision of the display panel and the opposite substrate can be improved, and the yield of the display device is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
In a conventional display device, the display area has a rectangular shape. With the development of display technology, the display device with rectangular display area has been unable to meet the diversified demands of users, and the display device with non-rectangular special-shaped display area is favored by consumers.
As shown in fig. 1 and 2, a display device provided in the related art includes a display panel 01 and a cover plate 02 that are disposed opposite to each other, the cover plate 02 may protect the display panel 01, and the display panel 01 and the cover plate 02 are manufactured in different manufacturing processes and then attached together. The display panel 01 includes a circular display area 011; the cover plate 02 is a glass substrate, and a circular ring-shaped ink layer 021 is arranged on the cover plate 02. The ink layer 021 can shield light to prevent light leakage of the display device. When the display panel 01 and the cover plate 02 are bonded, the inner boundary 0211 of the ink layer 021 and the boundary of the display region 011 are generally aligned.
Since the display area 011 is circular and not traditional rectangular, that is, the edge of the display area is curved or not straight, the alignment between the inner boundary 0211 of the ink layer 021 and the boundary of the display area 011 is difficult, alignment deviation is easy to occur, so that the bonding precision is reduced, and the yield of the display device is reduced.
Disclosure of Invention
In view of the above, the present invention provides a display device, including: a display panel and an opposing substrate which are disposed opposite to each other; the display panel comprises a display area and a non-display area surrounding the display area; the display area comprises at least one section of curve edge; the opposite substrate comprises a light-transmitting area and a light-shielding area, and the light-transmitting area covers the display area in the direction vertical to the display panel; the display device comprises at least one alignment mark group, wherein the alignment mark group is used for aligning the display panel and the opposite substrate; the alignment mark group comprises a first alignment mark and a second alignment mark which are correspondingly arranged; the first alignment mark is arranged in a non-display area of the display panel, and the second alignment mark is arranged in a light shielding area of the opposite substrate.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
the display device provided by the invention is provided with an alignment mark group, and the alignment mark group is used for aligning the display panel and the opposite substrate. Specifically, the alignment mark group includes a first alignment mark and a second alignment mark, which are correspondingly disposed, the first alignment mark is disposed in a non-display area of the display panel, and the second alignment mark is disposed in a light-shielding area of the opposite substrate. Through setting up first counterpoint mark and second counterpoint mark, can make display panel and opposition base plate easy counterpoint when the laminating, reduce the counterpoint deviation, improve the laminating precision to improve display device's yield.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a display device provided in the prior art;
FIG. 2 is a schematic cross-sectional view taken along line AA' of FIG. 1;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line BB' in FIG. 3;
FIG. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line CC' of FIG. 5;
FIG. 7 is a schematic cross-sectional view of another display device according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating a shape of an alignment mark set in the display device shown in FIG. 7;
FIG. 9 is a schematic diagram of another alignment mark set in the display device provided in FIG. 7;
FIG. 10 is a schematic diagram illustrating a shape of another alignment mark set in the display device shown in FIG. 7;
fig. 11 is a schematic cross-sectional view illustrating a display device according to another embodiment of the present invention;
FIG. 12 is a schematic diagram illustrating a shape of an alignment mark set in the display device shown in FIG. 11;
FIG. 13 is a schematic view of another alignment mark set in the display device of FIG. 11;
FIG. 14 is a schematic diagram illustrating a shape of another alignment mark set in the display device shown in FIG. 11;
fig. 15 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
FIG. 16 is a schematic diagram illustrating a shape of an alignment mark set in the display device shown in FIG. 15;
fig. 17 is a schematic cross-sectional view illustrating a display device according to another embodiment of the present invention;
fig. 18 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 19 is a schematic cross-sectional view of another display device according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 3 and 4, the present embodiment provides a display device, including: a display panel 10 and a counter substrate 20 disposed opposite to each other; the display panel 10 includes a display area 11 and a non-display area 12 surrounding the display area 11; the display area 11 comprises at least one curved edge 110; the opposite substrate 20 includes a light-transmitting area 21 and a light-shielding area 22, and the light-transmitting area 21 covers the display area 11 in a direction z perpendicular to the display panel 10; the display device comprises at least one alignment mark group 30, wherein the alignment mark group 30 is used for aligning the display panel 10 and the opposite substrate 20; the alignment mark group 30 includes a first alignment mark 31 and a second alignment mark 32 which are correspondingly arranged; the first alignment mark 31 is disposed in the non-display region 12 of the display panel 10, and the second alignment mark 32 is disposed in the light-shielding region 22 of the opposite substrate 20.
In the display device provided in this embodiment, the display panel 10 includes a display area 11 and a non-display area 12, the display area 11 may display image information, and the non-display area 12 may be provided with traces and electronic components. The present embodiment is not limited to the specific structure of the display panel 10, and the display panel 10 may be a liquid crystal display panel, an organic light emitting display panel, an electronic paper display panel, or another type of display panel. The display area 11 includes a curved edge 110, and optionally, the display area 11 may include two or more curved edges 110.
The display device provided by the embodiment further includes a counter substrate 20 disposed opposite to the display panel 10, and the counter substrate 20 can protect the display panel 10 from damage caused by an external force. The opposite substrate 20 includes a light-transmitting area 21 and a light-shielding area 22, the light-transmitting area 21 can transmit light, and the light-transmitting area 21 covers the display area 11 in a direction z perpendicular to the display panel 10. in the display device provided in this embodiment, in operation, the light in the display area 11 of the display panel 10 can be emitted from the light-transmitting area 21 and observed by a user. The light-shielding region 22 has a function of shielding light, so that light is prevented from being transmitted from the light-shielding region 22, and the light-shielding region 22 can shield light leakage and reflection in the display panel 10, thereby improving display quality.
After the display panel 10 and the counter substrate 20 are separately manufactured, they need to be assembled together by an assembly process. Alternatively, the display panel 10 and the opposite substrate 20 may be attached together using a glue material. In order to improve the alignment accuracy of the display panel 10 and the opposite substrate 20 in the assembly process, the display device provided in this embodiment is provided with at least one alignment mark group 30, and the alignment mark group 30 is used for aligning the display panel 10 and the opposite substrate 20. The alignment mark group 30 includes a first alignment mark 31 and a second alignment mark 32, which are correspondingly disposed, the first alignment mark 31 is disposed in the non-display area 12 of the display panel 10, and the first alignment mark 31 does not occupy the space of the display area 11, so as to avoid affecting the display effect; the second alignment mark 32 is disposed in the light shielding region 22 of the opposite substrate 20, and the second alignment mark 32 does not occupy the space of the light transmitting region 21, so as to avoid affecting the display effect. In the assembly process of the display panel 10 and the counter substrate 20, the display panel 10 and the counter substrate 20 can be aligned by observing the relative positional relationship between the first alignment mark 31 and the second alignment mark 32. Compared with the prior art, the relative position relation between the boundary of the display area 11 and the boundary of the light-transmitting area 21 does not need to be observed to carry out position alignment, the difficulty in aligning the display panel 10 and the opposite substrate 20 is reduced, the alignment precision of the display panel 10 and the opposite substrate 20 is improved, and therefore the yield of the display device is improved.
In fig. 3, the light-shielding region 22 is not provided with a filling pattern, and is only indicated by a line frame, in order to clearly illustrate the technical solution of the present embodiment.
In some alternative embodiments, referring to fig. 5 and 6, the display device shown in this embodiment is different from the display device provided in fig. 3 and 4 in that the display panel 10 and the opposite substrate 20 are both circular. The display area 11 of the display panel 10 is circular, in other words, the display area 11 comprises a segment of a circular shaped edge. In addition, the counter substrate 20 includes an ink layer 23, and the ink layer 23 is provided in the light shielding region 22. The ink layer 23 has a good light shielding effect, and optionally, the ink layer 23 is disposed on a surface of the opposite substrate 20 near the display panel 10. Optionally, the material of the second alignment mark 32 is ink, and the color of the second alignment mark 32 is different from the color of the ink layer 23 in the light-shielding region 22. By using the ink to manufacture the second alignment marks 32, it is possible to use the existing manufacturing process of the counter substrate 20, and it is not necessary to develop a new process, and it is possible to simplify the manufacturing process of the counter substrate 20.
Fig. 6 provides a display device in which the shape of the display area 11 is circular, and alternatively, the display area 11 may be elliptical or the display area 11 may be semicircular. It is understood that the specific shape of the display area 11 can be selected according to the specific design requirement of the display device, and the embodiment is not particularly limited thereto.
In some alternative embodiments, referring to fig. 7, in a display device provided in an embodiment of the present invention, a display panel 10 includes a first substrate 101 and a second substrate 102 disposed opposite to each other; one of the first and second substrates 101 and 102 includes a first alignment mark 31. Fig. 7 only illustrates a configuration in which the second substrate 102 includes the first alignment mark 31. In this embodiment, when the display panel 10 includes two substrates, the counter substrate 20 and the display panel 10 can be aligned by only providing the first alignment mark 31 in one of the substrates. Optionally, the first substrate 101 and the second substrate 102 are both hard substrates, and are made of glass materials, for example. Alternatively, optionally, the first substrate 101 and the second substrate 102 are both flexible substrates, for example, made of resin materials, and this embodiment is not particularly limited in this respect.
Alternatively, with continued reference to fig. 7, the opposite substrate 20 is disposed on a side of the first substrate 101 facing away from the second substrate 102; the first substrate 101 includes a black matrix layer 40; the second substrate 102 includes a thin film transistor array layer including a gate metal layer 51 and a source-drain metal layer 52. In the display panel provided in this embodiment, the second substrate 102 is an array substrate, the second substrate 102 includes thin film transistors arranged in an array, the thin film transistors include a gate, a source, and a drain, and optionally, the source and the drain are arranged in the same layer. The film layer where the thin film transistor is located is a thin film transistor array layer, the thin film transistor array layer comprises a gate metal layer 51 and a source drain metal layer 52, the gate metal layer 51 comprises a gate of the thin film transistor, and the source drain metal layer 52 comprises a source and a drain of the thin film transistor. The first substrate 101 includes the black matrix layer 40, and the black matrix layer 40 has beneficial effects of shielding light, improving the contrast of the display panel, and the like.
Optionally, with continued reference to fig. 7, the second substrate 102 includes a first alignment mark 31; the black matrix layer 40 includes a first hollow portion 41, an orthogonal projection of the first alignment mark 31 to the first substrate 101 is located in an area where the first hollow portion 41 is located, and an orthogonal projection of the second alignment mark 32 to the first substrate 101 is located in an area where the first hollow portion 41 is located. The first hollow portion 41 penetrates the black matrix layer 40 in the thickness direction of the black matrix layer 40. In this embodiment, the first hollow portion 41 is disposed in the black matrix layer 40, and in the process of assembling the opposite substrate 20 and the display panel 10, the relative position relationship between the first alignment mark 31 and the second alignment mark 32 can be observed through the first hollow portion 41, so as to prevent the first alignment mark 31 and the second alignment mark 32 from being blocked by the black matrix layer 40. In the present embodiment, the specific shape of the first hollow portion 40 is not limited. Alternatively, in the process of assembling the counter substrate 20 and the display panel 10, human eyes are on the side of the display panel 10 facing away from the counter substrate 20.
Optionally, with continued reference to fig. 7, one of the gate metal layer 51 and the source/drain metal layer 52 includes a first alignment mark 31, and the material of the first alignment mark 31 is the same as that of the film layer on which the first alignment mark is located. In fig. 7, only the first alignment mark 31 is provided in the source/drain metal layer 52 as an example. In other alternative implementations, the first alignment mark 31 may be disposed on the gate metal layer 51. In the process of manufacturing the second substrate 102, when the source/drain metal layer 52 is manufactured, the first alignment mark 31 may be formed in the process of patterning the source/drain metal layer 52 by using a mask, so that an additional process is not required to be added to manufacture the first alignment mark 31.
Optionally, referring to fig. 7 and 8 in combination, in the alignment mark group 30, the shape of the first alignment mark 31 is the same as that of the second alignment mark 32, and the orthographic projection of the first alignment mark 31 to the opposite substrate 20 is located in the area where the second alignment mark 32 is located. In fig. 8, only the first alignment mark 31 and the second alignment mark 32 are illustrated as being in a cross shape, but it is understood that the first alignment mark 31 and the second alignment mark 32 may be in a triangle shape, a quadrangle shape, or any other shape, and this embodiment is not limited in particular. In order to improve the alignment accuracy, the orthographic projection of the first alignment mark 31 on the counter substrate 20 is located in the area where the second alignment mark 32 is located, in other words, the size of the first alignment mark 31 should be smaller than or equal to the size of the second alignment mark 32. In the process of assembling the counter substrate 20 and the display panel 10, when human eyes are on the side of the display panel 10 away from the counter substrate 20, the overlapping condition of the first alignment mark 31 and the second alignment mark 32 needs to be observed to complete the alignment of the counter substrate 20 and the display panel 10. If the size of the first alignment mark 31 is larger than the size of the second alignment mark 32, the first alignment mark 31 completely covers the second alignment mark 32, and an assembler cannot accurately determine the relative position relationship between the first alignment mark 31 and the second alignment mark 32, thereby affecting the alignment accuracy of the opposing substrate 20 and the display panel 10. In this embodiment, in the process of assembling the opposite substrate 20 and the display panel 10, when the size of the first alignment mark 31 is equal to the size of the second alignment mark 32, the alignment is completed when the first alignment mark 31 and the second alignment mark 32 are completely overlapped; when the size of the first alignment mark 31 is smaller than the size of the second alignment mark 32, the boundary of the first alignment mark 31 is located within the boundary of the second alignment mark 32, i.e. the alignment is completed.
Optionally, in the display device provided in fig. 7, please refer to fig. 7 and 9 in combination for another specific arrangement manner of the first alignment mark 31 and the second alignment mark 32 in the alignment mark group 30, the first alignment mark 31 is a hollow portion penetrating through one of the gate metal layer 51 and the source/drain metal layer 52 along the thickness direction of the second substrate 102. Alternatively, the shape of the first alignment mark 31 is the same as the shape of the second alignment mark 32, and the orthographic projection of the first alignment mark 31 to the opposite substrate 20 covers the second alignment mark 32. In this embodiment, only the shape of the first alignment mark 31 and the second alignment mark 32 are illustrated as a cross shape, it is understood that the shape of the first alignment mark 31 and the second alignment mark 32 may be a triangle, a quadrangle, or any other shape, and this embodiment is not limited in particular. In order to improve the alignment accuracy, the orthogonal projection of the first alignment mark 31 onto the opposite substrate 20 covers the second alignment mark 32, in other words, the size of the first alignment mark 31 should be larger than or equal to the size of the second alignment mark 32. In the process of assembling the counter substrate 20 and the display panel 10, when human eyes are on the side of the display panel 10 away from the counter substrate 20, the overlapping condition of the first alignment mark 31 and the second alignment mark 32 needs to be observed to complete the alignment of the counter substrate 20 and the display panel 10. Since the first alignment mark 31 is a hollow portion, if the size of the first alignment mark 31 is smaller than the size of the second alignment mark 32, the film layer around the first alignment mark 31 will block the second alignment mark 32, and the assembler cannot accurately determine the relative position relationship between the first alignment mark 31 and the second alignment mark 32, thereby affecting the alignment accuracy of the opposing substrate 20 and the display panel 10. In this embodiment, in the process of assembling the opposite substrate 20 and the display panel 10, when the size of the first alignment mark 31 is equal to the size of the second alignment mark 32, the alignment is completed when the boundary of the second alignment mark 32 coincides with the boundary of the first alignment mark 31; when the size of the first alignment mark 31 is larger than the size of the second alignment mark 32, the boundary of the second alignment mark 32 falls within the boundary of the first alignment mark 31, i.e. the alignment is completed. It can be understood that, when the first alignment mark 31 is disposed, in order to increase the visible area, other hollow-out portions may be disposed on the periphery of the first alignment mark 31, for example, please refer to fig. 10, a ring-shaped hollow-out portion 521 may be disposed on the periphery of the first alignment mark 31, it can be understood that the actually effective area for alignment is still a cross-shaped hollow-out portion, and the cross-shaped hollow-out portion is the first alignment mark 31.
In some alternative embodiments, please refer to fig. 11 and 12, and fig. 11 follows the reference numerals of fig. 7, and the description of the same parts is omitted. In the present embodiment, the black matrix layer 40 includes the first alignment mark 31, and the material of the first alignment mark 31 is the same as the material of the black matrix layer 40. In the process of manufacturing the second substrate 102, the first alignment mark 31 may be formed in the process of patterning the black matrix layer 40 using a mask when the black matrix layer 40 is manufactured, so that an additional process is not required to manufacture the first alignment mark 31. Optionally, in a direction z perpendicular to the display panel, the gate metal layer 51 does not overlap the alignment mark group 30, and the source-drain metal layer 52 does not overlap the alignment mark group 30. Alternatively, in the process of assembling the counter substrate 20 and the display panel 10, human eyes are on the side of the display panel 10 facing away from the counter substrate 20. The gate metal layer 51 and the source/drain metal layer 52 are not overlapped with the alignment mark group 30, so as to avoid the reduction of the alignment accuracy between the opposite substrate 20 and the display panel 10 due to the blocking of the view. It can be understood that, by adjusting the mask of the patterned gate metal layer 51 and the mask of the patterned source/drain metal layer 52, the gate metal layer 51 and the alignment mark group 30 are not overlapped, and the source/drain metal layer 52 and the alignment mark group 30 are not overlapped. Optionally, in the alignment mark group 30, the shape of the first alignment mark 31 is the same as the shape of the second alignment mark 32, and the orthographic projection of the first alignment mark 31 to the opposite substrate 20 is located in the area where the second alignment mark 32 is located, so as to improve the alignment accuracy between the opposite substrate 20 and the display panel 10. In fig. 12, only the first alignment mark 31 and the second alignment mark 32 are illustrated as being in a cross shape, but it is understood that the first alignment mark 31 and the second alignment mark 32 may be in a triangle shape, a quadrangle shape, or any other shape, and this embodiment is not limited in particular.
In some alternative embodiments, please refer to fig. 11 and 13 in combination, in the present embodiment, the first alignment mark 31 is a hollow portion in the black matrix layer 40. In fig. 13, only the shape of the second alignment mark 32 is described as a cross shape, in this case, the first alignment mark 31 is a four-sector hollow-out portion in the black matrix layer 40, and the four-sector hollow-out portion is complementary to the shape of the second alignment mark 32. In the process of assembling the opposite substrate 20 and the display panel 10, when the human eyes are on the side of the display panel 10 away from the opposite substrate 20, and the second alignment marks 32 cannot be observed in the four fan-shaped hollow parts in the black matrix layer 40, the opposite substrate 20 and the display panel 10 are aligned.
Optionally, in the display device provided in fig. 11, please refer to fig. 11 and 14 in combination for another specific arrangement manner of the first alignment mark 31 and the second alignment mark 32 in the alignment mark group 30, in this embodiment, the first substrate 101 includes the first alignment mark 31, and the first alignment mark 31 is a hollow portion penetrating through the black matrix layer 40 along the thickness direction of the first substrate 101. Optionally, in the process of assembling the opposite substrate 20 and the display panel 10, human eyes are on the side of the display panel 10 away from the opposite substrate 20, the shape of the first alignment mark 31 is the same as that of the second alignment mark 32, and the orthographic projection of the first alignment mark 31 to the opposite substrate 20 covers the second alignment mark 32, so that the alignment accuracy is improved. In this embodiment, only the shape of the first alignment mark 31 and the second alignment mark 32 are illustrated as a cross shape, it is understood that the shape of the first alignment mark 31 and the second alignment mark 32 may be a triangle, a quadrangle, or any other shape, and this embodiment is not limited in particular.
In some optional embodiments, referring to fig. 15 and fig. 16, the ink layer 23 includes a second alignment mark 32, and the second alignment mark 32 is a hollow portion penetrating through the ink layer 23 along a thickness direction of the ink layer 23. Alternatively, in the process of manufacturing the opposite substrate 20, when the ink layer 23 is coated on the opposite substrate 20, an area of the second alignment mark 32 may be reserved, and the area is not coated with ink. Optionally, the black matrix 40 layer includes a first alignment mark 31, and a material of the first alignment mark 31 is the same as a material of the black matrix layer 40; optionally, in the process of manufacturing the first substrate 101, the first alignment mark 31 may be formed in the process of patterning the black matrix layer 40 by using a mask when the black matrix layer 40 is manufactured, so that the first alignment mark 31 is manufactured without adding an additional process. Alternatively, in the process of assembling the counter substrate 20 and the display panel 10, human eyes are on the side of the counter substrate 20 facing away from the display panel 10. Optionally, after the opposite substrate 20 and the display panel 10 are assembled, in order to ensure the light shielding effect of the light shielding region 22 of the opposite substrate 20, the shape of the first alignment mark 31 is the same as that of the second alignment mark 32, and the orthogonal projection of the first alignment mark 31 to the opposite substrate 20 covers the second alignment mark 32, in other words, the size of the first alignment mark 31 is greater than or equal to that of the second alignment mark 32, so that the hollow portion of the ink layer 23 is shielded by the first alignment mark 31, and the light leakage phenomenon in the light shielding region 22 is prevented. Alternatively, in the present embodiment, in the process of assembling the opposite substrate 20 and the display panel 10, in order to make the first alignment mark 31 and the second alignment mark 32 clearly visible to human eyes, the region where the alignment mark group 30 is located should avoid the existence of both transmitted light and reflected light. Optionally, in a direction z perpendicular to the display panel, the gate metal layer 51 does not overlap the alignment mark group 30, and the source-drain metal layer 52 does not overlap the alignment mark group 30, so that only transmitted light exists in a region where the alignment mark group 30 is located. Optionally, in the direction z perpendicular to the display panel, at least one of the gate metal layer 51 and the source-drain metal layer 52 covers the alignment mark group 30, so that only the reflected light exists in the region where the alignment mark group 30 is located. Specifically, referring to fig. 17, fig. 17 is different from fig. 15 in that, in a direction z perpendicular to the display panel, the source/drain metal layer 52 covers the alignment mark set 30. Alternatively, in other alternative implementations, the gate metal layer 51 covers the alignment mark group 30 in the direction z perpendicular to the display panel. Alternatively, in other alternative implementations, in the direction z perpendicular to the display panel, the gate metal layer 51 and the source-drain metal layer 52 both cover the alignment mark group 30.
In some optional implementations, in the display device provided in the present invention, the display panel may be a liquid crystal display panel or an electronic paper display panel. Specifically, referring to fig. 18, fig. 18 is only described based on the display device provided in fig. 17. Fig. 18 differs from fig. 17 in that the display panel may include a display functional layer 103, and the display functional layer 103 is interposed between the first substrate 101 and the second substrate 102. Optionally, the display function layer 103 is a liquid crystal layer, and the display function layer 103 includes liquid crystal molecules; alternatively, the display function layer 103 is an electrophoretic particle layer, and the display function layer 103 includes electrophoretic particles.
It should be noted that, in the display device provided in the embodiment of the present invention, when the display panel includes the first substrate and the second substrate, the first substrate and the second substrate need to be aligned and assembled, optionally, the first substrate is provided with a first substrate mark, the second substrate is provided with a second substrate mark, and the first substrate mark and the second substrate mark are used to achieve position alignment of the first substrate and the second substrate, so as to improve alignment accuracy of the first substrate and the second substrate. Optionally, the first alignment mark may be multiplexed as one of the first substrate mark and the second substrate mark to reduce the number of alignment marks in the display device.
In some optional implementations, the display panel in the display device provided by the present invention may be an organic light emitting display panel, and specifically, referring to fig. 19, the display panel 10 includes a substrate 00, an organic light emitting diode layer and a thin film encapsulation layer 60, which are sequentially disposed, where the organic light emitting diode layer includes a plurality of organic light emitting diodes OLEDs. In order to clearly illustrate the technical solution of the present embodiment, only one organic light emitting diode OLED is illustrated in the present embodiment. Optionally, the display panel 10 further includes a thin film transistor layer, where the thin film transistor layer includes a plurality of thin film transistors ST.
Optionally, on the basis of the display device provided in any embodiment of the present invention, the opposite substrate is a glass cover plate. The counter substrate is made of a glass material, so that the display panel can be protected from being damaged by external force. Or, optionally, a touch function may be integrated in the counter substrate, and the counter substrate includes a counter substrate and a touch electrode. In this embodiment, the specific shape, number and operation mode of the touch electrode are not particularly limited.
According to the embodiment, the invention at least realizes the following beneficial effects:
the display device provided by the invention is provided with an alignment mark group, and the alignment mark group is used for aligning the display panel and the opposite substrate. Specifically, the alignment mark group includes a first alignment mark and a second alignment mark, which are correspondingly disposed, the first alignment mark is disposed in a non-display area of the display panel, and the second alignment mark is disposed in a light-shielding area of the opposite substrate. Through setting up first counterpoint mark and second counterpoint mark, can make display panel and opposition base plate easy counterpoint when the laminating, reduce the counterpoint deviation, improve the laminating precision to improve display device's yield.
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 (12)
1. A display device, comprising:
a display panel and an opposing substrate which are disposed opposite to each other;
the display panel includes a display area and a non-display area surrounding the display area; the display area comprises at least one section of curve edge;
the opposite substrate comprises a light-transmitting area and a light-shielding area, and the light-transmitting area covers the display area in a direction perpendicular to the display panel;
the display device comprises at least one alignment mark group, wherein the alignment mark group is used for aligning the display panel and the opposite substrate;
the alignment mark group comprises a first alignment mark and a second alignment mark which are correspondingly arranged; the first alignment mark is arranged in the non-display area of the display panel, and the second alignment mark is arranged in the light shielding area of the opposite substrate;
the display panel comprises a first substrate and a second substrate which are oppositely arranged;
one of the first substrate and the second substrate includes the first alignment mark;
the orthographic projection of the first alignment mark to the opposite substrate is positioned in the area of the second alignment mark; or the orthographic projection of the first alignment mark to the opposite substrate covers the second alignment mark;
the opposite substrate is arranged on one side of the first substrate, which is far away from the second substrate;
the first substrate includes a black matrix layer;
the second substrate comprises a thin film transistor array layer, the thin film transistor array layer comprises a grid metal layer and a source drain metal layer, and the grid metal layer covers the alignment mark group in the direction perpendicular to the display panel, so that only reflected light exists in the region where the alignment mark group is located;
the second substrate comprises the first alignment mark;
the black matrix layer comprises a first hollow part, the orthographic projection of the first alignment mark to the first substrate is positioned in the area of the first hollow part, and the orthographic projection of the second alignment mark to the first substrate is positioned in the area of the first hollow part;
the periphery of the first alignment mark is provided with an annular hollow-out part, and the orthographic projection of the first alignment mark on the plane of the opposite substrate is positioned in the orthographic projection of the annular hollow-out part on the plane of the opposite substrate.
2. The display device according to claim 1,
the shape of the first alignment mark is the same as that of the second alignment mark.
3. The display device according to claim 1,
the shape of the first alignment mark is complementary to the shape of the second alignment mark.
4. The display device according to claim 1,
the opposite substrate comprises an ink layer, and the ink layer is arranged in the shading area.
5. The display device according to claim 4,
the ink layer comprises a second alignment mark, and the second alignment mark penetrates through the hollow-out part of the ink layer along the thickness direction of the ink layer.
6. The display device according to claim 4,
the second alignment mark is made of ink, and the color of the second alignment mark is different from that of the ink layer in the shading area.
7. The display device according to claim 1,
the display panel further comprises a liquid crystal layer, and the liquid crystal layer is clamped between the first substrate and the second substrate.
8. The display device according to claim 1,
the display panel further comprises an electrophoretic particle layer, and the electrophoretic particle layer is clamped between the first substrate and the second substrate.
9. The display device according to claim 1,
the display panel comprises a substrate base plate, an organic light-emitting diode layer and a thin film packaging layer which are sequentially arranged.
10. The display device according to claim 1,
the counter substrate is a glass cover plate.
11. The display device according to claim 1,
the opposite substrate comprises an opposite substrate and a touch electrode.
12. The display device according to claim 1,
the display area is circular, elliptical or semicircular in shape.
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| CN202010823635.7A CN111913316B (en) | 2018-01-02 | 2018-01-02 | Display device |
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| CN201810002520.4A CN108132554B (en) | 2018-01-02 | 2018-01-02 | Display device |
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| CN110767084B (en) * | 2019-02-01 | 2022-07-08 | 云谷（固安）科技有限公司 | Display panel, manufacturing method thereof and display device |
| CN109808324A (en) * | 2019-03-05 | 2019-05-28 | 信利光电股份有限公司 | A kind of circular cover screen printing method and circular mode group production method |
| CN110618552A (en) * | 2019-08-21 | 2019-12-27 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN111276634A (en) * | 2020-03-26 | 2020-06-12 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111489656B (en) * | 2020-04-26 | 2022-07-05 | 上海天马微电子有限公司 | Display device alignment method and display device |
| CN113808477A (en) * | 2020-06-15 | 2021-12-17 | 群创光电股份有限公司 | Display device |
| CN111882988B (en) | 2020-07-31 | 2023-01-31 | 北海惠科光电技术有限公司 | Display panel, manufacturing method of display panel and display device |
| US11864418B2 (en) | 2020-09-17 | 2024-01-02 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display panel, preparation method thereof and display device |
| CN113238400B (en) * | 2021-03-29 | 2023-06-16 | 绵阳惠科光电科技有限公司 | Alignment mark, display device and method for judging alignment mark |
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| CN115132079B (en) * | 2022-06-08 | 2024-01-02 | 厦门天马显示科技有限公司 | Display panel and display device |
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| CN111913316A (en) | 2020-11-10 |
| CN108132554A (en) | 2018-06-08 |
| CN111913316B (en) | 2023-07-04 |
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