CN111913316B - Display device - Google Patents
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- CN111913316B CN111913316B CN202010823635.7A CN202010823635A CN111913316B CN 111913316 B CN111913316 B CN 111913316B CN 202010823635 A CN202010823635 A CN 202010823635A CN 111913316 B CN111913316 B CN 111913316B
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- alignment mark
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- display panel
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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
Abstract
The invention discloses a display device, which belongs to the technical field of display and comprises: a display panel and a counter substrate 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 transmission area and a shading area, and the light transmission area covers the display area in the 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 a non-display area of the display panel, and the second alignment mark is arranged in a shading 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
The application is a divisional application with the name of display device, and the application date is 2018, 1 month and 2 days, the application number is 201810002520.4.
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
In the conventional display device, the display area has a rectangular shape. With the development of display technology, display devices with rectangular display areas cannot meet the diversified demands of users, and display devices with non-rectangular special-shaped display areas are favored by consumers.
As shown in fig. 1 and 2, a display device provided in the prior art includes a display panel 01 and a cover plate 02 which are disposed opposite to each other, wherein the cover plate 02 can protect the display panel 01, and the display panel 01 and the cover plate 02 are manufactured in different manufacturing processes respectively and then are attached together. The display panel 01 includes a circular display region 011; the cover plate 02 is a glass substrate, and a ring-shaped ink layer 021 is arranged on the cover plate 02. The ink layer 021 can shield light to prevent the display device from leaking light. In the bonding of the display panel 01 and the cover plate 02, the inner boundary 0211 of the ink layer 021 and the boundary of the display region 011 are usually aligned.
Since the display area 011 is circular and is not a traditional rectangle, that is, the edge of the display area is a curved edge and is not a straight edge, the alignment of the inner boundary 0211 of the ink layer 021 and the boundary of the display area 011 is difficult, and alignment deviation easily occurs, so that the attaching precision is reduced, and the yield of the display device is reduced.
Disclosure of Invention
In view of this, the present invention provides a display device including: a display panel and a counter substrate 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 transmission area and a shading area, and the light transmission area covers the display area in the 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 a non-display area of the display panel, and the second alignment mark is arranged in a shading area of the opposite substrate.
Compared with the prior art, the display device provided by the invention has the advantages that at least the following beneficial effects are realized:
in the display device provided by the invention, the alignment mark group is arranged, and the alignment mark group is used for aligning the display panel and the opposite substrate. Specifically, 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 shading area of the opposite substrate. Through setting up first counterpoint mark and second counterpoint mark, can make display panel and counter substrate easily counterpoint when laminating, reduce the counterpoint deviation, improve laminating precision to improve display device's yield.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, 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 view of a cross-sectional structure taken along the 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 view of a alignment mark set in the display device of FIG. 7;
FIG. 9 is a schematic view of another alignment mark set in the display device of FIG. 7;
FIG. 10 is a schematic view of a shape of a further alignment mark set in the display device provided in FIG. 7;
FIG. 11 is a schematic cross-sectional view of another display device according to an embodiment of the present invention;
FIG. 12 is a schematic view of a alignment mark set in the display device of 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 view of a shape of a further alignment mark set in the display device of FIG. 11;
fig. 15 is a schematic cross-sectional view of still another display device according to an embodiment of the present invention;
FIG. 16 is a schematic view of a alignment mark set in the display device of FIG. 15;
fig. 17 is a schematic cross-sectional view of still another display device according to an embodiment of the present invention;
fig. 18 is a schematic cross-sectional view of still another display device according to an embodiment of the present 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, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one 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 specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary 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 region 11 and a non-display region 12 surrounding the display region 11; the display area 11 comprises at least one curved edge 110; the counter substrate 20 includes a light-transmitting region 21 and a light-shielding region 22, the light-transmitting region 21 covering the display region 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 counter 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, where the display area 11 can display image information, and the non-display area 12 can be provided with wiring and electronic components. The specific structure of the display panel 10 is not limited in this embodiment, and the display panel 10 may be a liquid crystal display panel, an organic light emitting display panel, an electronic paper display panel, or other types of display panels. Wherein the display area 11 comprises a curved edge 110, alternatively the display area 11 may comprise two or more curved edges 110.
The display device provided in this embodiment further includes a counter substrate 20 disposed opposite to the display panel 10, where the counter substrate 20 can protect the display panel 10 from damage caused by external force. The opposite substrate 20 includes a light-transmitting region 21 and a light-shielding region 22, the light-transmitting region 21 can transmit light, the light-transmitting region 21 covers the display region 11 in a direction z perpendicular to the display panel 10, and when the display device provided in this embodiment is in operation, light of the display region 11 of the display panel 10 can be emitted from the light-transmitting region 21 and observed by a user. The light shielding region 22 has a light shielding function, prevents light from being transmitted out of the light shielding region 22, and the light shielding region 22 can shield light leakage and light reflection in the display panel 10 to improve display quality.
After the display panel 10 and the counter substrate 20 are manufactured separately, they are assembled together by an assembly process. Alternatively, the display panel 10 and the opposite substrate 20 may be attached together using a glue. In order to improve the alignment accuracy of the display panel 10 and the counter 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 counter substrate 20. The alignment mark group 30 comprises a first alignment mark 31 and a second alignment mark 32 which are correspondingly arranged, the first alignment mark 31 is arranged 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 not to influence 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 not to affect the display effect. In the process of assembling the display panel 10 and the counter substrate 20, the positions of the display panel 10 and the counter substrate 20 can be aligned by observing the relative positional relationship of 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 is not required to be observed for position alignment, the difficulty in aligning the display panel 10 with the opposite substrate 20 is reduced, and the alignment precision of the display panel 10 and the opposite substrate 20 is improved, so that 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 illustrated only by a wire frame for clarity of illustration of the technical solution of the present embodiment.
In some alternative embodiments, please refer to fig. 5 and 6, the display device of 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 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 the ink layer 23 is optionally disposed on a side 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. The second alignment mark 32 is manufactured using ink, and thus the existing manufacturing process of the counter substrate 20 can be utilized, and a new process is not required to be developed, so that the manufacturing process of the counter substrate 20 can be simplified.
In the display device provided in fig. 6, an embodiment in which the shape of the display area 11 is circular is illustrated, alternatively, the display area 11 may be elliptical, or the display area 11 may be semicircular. It will be appreciated that the specific shape of the display area 11 may be selected according to the specific design requirements of the display device, and this embodiment is not particularly limited.
In some alternative embodiments, referring to fig. 7, in the display device provided in the 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 substrate 101 and the second substrate 102 includes a first alignment mark 31. In fig. 7, only the technical solution in which the second substrate 102 includes the first alignment mark 31 is illustrated. In this embodiment, when the display panel 10 includes two substrates, the opposite substrate 20 and the display panel 10 can be aligned by only providing the first alignment mark 31 on one of the substrates. Alternatively, the first substrate 101 and the second substrate 102 are both hard substrates, for example, made of glass materials. Alternatively, the first substrate 101 and the second substrate 102 may be flexible substrates, for example, made of a resin material, which is not particularly limited in this embodiment.
Optionally, please continue to refer 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 disposed in an array, and the thin film transistors include a gate electrode, a source electrode, and a drain electrode, which are optionally disposed in the same layer. The thin film transistor is arranged on 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 electrode and a drain electrode of the thin film transistor. The first substrate 101 includes a black matrix layer 40, and the black matrix layer 40 has the advantages of shielding light, improving contrast of the display panel, and the like.
Optionally, referring to fig. 7, the second substrate 102 includes a first alignment mark 31; the black matrix layer 40 includes a first hollowed-out portion 41, the orthographic projection of the first alignment mark 31 to the first substrate 101 is located in the area where the first hollowed-out portion 41 is located, and the orthographic projection of the second alignment mark 32 to the first substrate 101 is located in the area where the first hollowed-out portion 41 is located. The first hollowed-out portion 41 penetrates the black matrix layer 40 along the thickness direction of the black matrix layer 40. In the present embodiment, the first hollowed-out portion 41 is provided in the black matrix layer 40, and in the process of assembling the counter substrate 20 and the display panel 10, the relative positional relationship between the first alignment mark 31 and the second alignment mark 32 can be observed through the first hollowed-out portion 41, so that the black matrix layer 40 is prevented from blocking the first alignment mark 31 and the second alignment mark 32. In the present embodiment, the specific shape of the first hollowed-out portion 40 is not limited. Alternatively, in the process of assembling the counter substrate 20 and the display panel 10, human eyes are on a side of the display panel 10 facing away from the counter substrate 20.
Optionally, referring 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. In fig. 7, only the first alignment mark 31 is provided on the source/drain metal layer 52. In other alternative implementations, the first alignment marks 31 may be provided on the gate metal layer 51. In the process of manufacturing the second substrate 102, the first alignment mark 31 may be formed during the process of patterning the source drain metal layer 52 by using the mask when manufacturing the source drain metal layer 52, so that an additional process is not required to be added to manufacture the first alignment mark 31.
Alternatively, referring to fig. 7 and 8 in combination, in the alignment mark set 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. In fig. 8, only the shape of the first alignment mark 31 and the second alignment mark 32 is illustrated as a cross shape, and 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, which is not particularly limited in this embodiment. In order to improve the alignment accuracy, the orthographic projection of the first alignment mark 31 onto the opposite substrate 20 is located in the region 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 the human eye is away from the side of the counter substrate 20, it is necessary to observe the overlapping condition of the first alignment mark 31 and the second alignment mark 32 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 shields the second alignment mark 32, and the assembler cannot accurately determine the relative positional relationship between the first alignment mark 31 and the second alignment mark 32, thereby affecting the alignment accuracy of the counter substrate 20 and the display panel 10. In the present embodiment, in the process of assembling the counter 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. alignment is completed.
Alternatively, in the display device provided in fig. 7, referring to fig. 7 and 9 in combination, in 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 hollowed-out 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 second alignment mark 32 is covered by the orthographic projection of the first alignment mark 31 onto the opposite substrate 20. In the present embodiment, only the shape of the first alignment mark 31 and the second alignment mark 32 is illustrated as a cross shape, and 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 arbitrary shape, which is not particularly limited in this embodiment. In order to improve the alignment accuracy, the second alignment mark 32 is covered by the orthographic projection of the first alignment mark 31 onto the opposite substrate 20, in other words, the size of the first alignment mark 31 should be equal to or larger than the size of the second alignment mark 32. In the process of assembling the counter substrate 20 and the display panel 10, when the human eye is away from the side of the counter substrate 20, it is necessary to observe the overlapping condition of the first alignment mark 31 and the second alignment mark 32 to complete the alignment of the counter substrate 20 and the display panel 10. Because the first alignment mark 31 is a hollowed-out portion, if the size of the first alignment mark 31 is smaller than that of the second alignment mark 32, the film layer around the first alignment mark 31 can shield the second alignment mark 32, so that an assembler cannot accurately determine the relative positional relationship between the first alignment mark 31 and the second alignment mark 32, thereby affecting the alignment accuracy of the counter substrate 20 and the display panel 10. In the present embodiment, in the process of assembling the counter 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 boundary between the second alignment mark 32 and the boundary between the first alignment mark 31 coincides with each other, that is, alignment is completed; 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. alignment is completed. It can be understood that, when the first alignment mark 31 is provided, in order to increase the visual area, other hollowed-out portions may be provided on the periphery of the first alignment mark 31, for example, referring to fig. 10, an annular hollowed-out portion 521 may be provided on the periphery of the first alignment mark 31, and it can be understood that the area that is actually effective for alignment is still a hollowed-out portion in a cross shape, and the hollowed-out portion in a cross shape is the first alignment mark 31.
In some alternative embodiments, please refer to fig. 11 and 12, and fig. 11 is followed by reference numerals in fig. 7, and the same parts are not repeated. In this embodiment, the black matrix layer 40 includes a first alignment mark 31, and the material of the first alignment mark 31 is the same as that of the black matrix layer 40. In the process of manufacturing the second substrate 102, the first alignment mark 31 may be formed during the process of patterning the black matrix layer 40 using a mask when manufacturing the black matrix layer 40, so that an additional process is not required to manufacture the first alignment mark 31. Alternatively, in the 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 a 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 do not overlap with the alignment mark group 30, so as to avoid the decrease of alignment accuracy of the opposite substrate 20 and the display panel 10 caused by shielding the line of sight. 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, it is possible to realize that the gate metal layer 51 does not overlap with the alignment mark group 30 and the source/drain metal layer 52 does not overlap with the alignment mark group 30. 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 of the opposite substrate 20 and the display panel 10. In fig. 12, only the shape of the first alignment mark 31 and the second alignment mark 32 is illustrated as a cross shape, and 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, which is not particularly limited in this embodiment.
In some alternative embodiments, please refer to fig. 11 and 13 in combination, in this embodiment, the first alignment mark 31 is a hollowed-out portion in the black matrix layer 40. In fig. 13, only the shape of the second alignment mark 32 is illustrated as a cross shape, and at this time, the first alignment mark 31 is a hollowed out portion of four sectors in the black matrix layer 40, and the hollowed out portions of four sectors are complementary to the shape of the second alignment mark 32. In the process of assembling the counter substrate 20 and the display panel 10, the human eye performs alignment of the counter substrate 20 and the display panel 10 when the second alignment mark 32 cannot be observed in the four sector-shaped hollowed-out portions of the black matrix layer 40 on the side of the display panel 10 facing away from the counter substrate 20.
Alternatively, in the display device provided in fig. 11, referring to fig. 11 and 14 for another specific arrangement of the first alignment marks 31 and the second alignment marks 32 in the alignment mark group 30, in this embodiment, the first substrate 101 includes the first alignment marks 31, and the first alignment marks 31 are hollowed-out portions penetrating through the black matrix layer 40 along the thickness direction of the first substrate 101. Optionally, in the process of assembling the counter substrate 20 and the display panel 10, the human eye covers the second alignment mark 32 on the side of the display panel 10 facing away from the counter substrate 20, where 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 onto the counter substrate 20 improves the alignment accuracy. In the present embodiment, only the shape of the first alignment mark 31 and the second alignment mark 32 is illustrated as a cross shape, and 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 arbitrary shape, which is not particularly limited in this embodiment.
In some alternative embodiments, referring to fig. 15 and 16, the ink layer 23 includes a second alignment mark 32, and the second alignment mark 32 is a hollowed-out portion penetrating through the ink layer 23 along a thickness direction of the ink layer 23. Alternatively, in the process of manufacturing the counter substrate 20, when the ink layer 23 is coated on the counter substrate 20, a region of the second alignment mark 32 may be reserved first, and the region is not coated with ink. Optionally, the black matrix 40 layer includes a first alignment mark 31, and the material of the first alignment mark 31 is the same as that of the black matrix layer 40; alternatively, in the process of manufacturing the first substrate 101, the first alignment mark 31 may be formed during the patterning of the black matrix layer 40 using the mask when the black matrix layer 40 is manufactured, so that no additional process is required to manufacture the first alignment mark 31. Alternatively, in the process of assembling the counter substrate 20 and the display panel 10, human eyes are on a side of the counter substrate 20 facing away from the display panel 10. Optionally, after the assembly of the opposite substrate 20 and the display panel 10 is completed, 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 the shape of the second alignment mark 32, and the orthographic 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 is equal to or larger than the size of the second alignment mark 32, so that the hollowed-out portion of the ink layer 23 is blocked by the first alignment mark 31, and the light leakage phenomenon of the light shielding region 22 is prevented. Alternatively, in the present embodiment, in the process of assembling the counter substrate 20 and the display panel 10, in order to make it possible for the human eye to clearly observe the first alignment mark 31 and the second alignment mark 32, the presence of both transmitted light and reflected light should be avoided in the region where the alignment mark group 30 is located. Alternatively, in the 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 the transmission light exists in the region where the alignment mark group 30 is located. Optionally, at least one of the gate metal layer 51 and the source drain metal layer 52 covers the alignment mark group 30 in a direction z perpendicular to the display panel, so that only reflected light exists in a region where the alignment mark group 30 is located. Specifically, referring to fig. 17, fig. 17 is different from fig. 15 in that the source-drain metal layer 52 covers the alignment mark group 30 in a direction z perpendicular to the display panel. Alternatively, in other alternative implementations, the gate metal layer 51 covers the alignment mark group 30 in a direction z perpendicular to the display panel. Alternatively, in other alternative implementations, the gate metal layer 51 and the source drain metal layer 52 each cover the alignment mark group 30 in a direction z perpendicular to the display panel.
In some alternative implementations, 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 on the basis of the display device provided in fig. 17. Fig. 18 differs from fig. 17 in that the display panel may include a display function layer 103, the display function layer 103 being interposed between the first substrate 101 and the second substrate 102. Alternatively, 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 assembled in an alignment manner, and optionally, the first substrate is provided with a first substrate mark, and the second substrate is provided with a second substrate mark, where the first substrate mark and the second substrate mark are used to implement the alignment of the positions of the first substrate and the second substrate, so as to improve the alignment accuracy of the first substrate and the second substrate. Alternatively, 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 alternative implementations, in the display device provided by the present invention, the display panel may be an organic light emitting display panel, specifically, please refer to fig. 19, the display panel 10 includes a substrate 00, an organic light emitting diode layer and a thin film encapsulation layer 60 sequentially disposed, wherein the organic light emitting diode layer includes a plurality of organic light emitting diodes OLED. For clarity of explanation of the technical solution of the present embodiment, in the present embodiment, only one organic light emitting diode OLED is illustrated. 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, and only one thin film transistor ST is illustrated in the present embodiment for clarity of description of the technical solution of the present embodiment.
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 opposite substrate is made of glass material, and can protect the display panel from being damaged by external force. Alternatively, the opposite substrate may have a touch function integrated therein, and the opposite substrate includes an opposite substrate and a touch electrode. The specific shape, number and operation mode of the touch electrode are not particularly limited in this embodiment.
According to the embodiment, the following beneficial effects are at least realized:
in the display device provided by the invention, the alignment mark group is arranged, and the alignment mark group is used for aligning the display panel and the opposite substrate. Specifically, 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 shading area of the opposite substrate. Through setting up first counterpoint mark and second counterpoint mark, can make display panel and counter substrate easily counterpoint when laminating, reduce the counterpoint deviation, improve laminating precision to improve display device's yield.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the 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 (14)
1. A display device comprising a display panel and a counter substrate disposed opposite to each other, wherein the display panel comprises a display area and a non-display area surrounding the display area;
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, and is characterized in that the display area comprises at least one section of curve edge;
the opposite substrate comprises a light transmission area and a shading area, and the light transmission area covers the display area in the direction perpendicular to the display panel;
the first alignment mark is arranged in the non-display area of the display panel, and the second alignment mark is arranged in the shading area of the opposite substrate;
the display panel comprises a first substrate and a second substrate which are oppositely arranged;
the first substrate comprises the first alignment mark;
the orthographic projection of the first alignment mark to the opposite substrate is positioned in the area where the second alignment mark is positioned; or 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 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 gate metal layer and a source drain metal layer, and at least one of the gate metal layer and the source drain metal layer covers the alignment mark group in a direction perpendicular to the display panel.
2. The display device of claim 1, wherein the display device comprises a display device,
the shape of the first alignment mark is the same as the shape of the second alignment mark.
3. The display device of claim 1, wherein the display device comprises a display device,
the shape of the first alignment mark is complementary to the shape of the second alignment mark.
4. The display device of claim 1, wherein the display device comprises a display device,
the opposite substrate comprises an ink layer, and the ink layer is arranged in the shading area.
5. The display device of claim 1, wherein the display device comprises a display device,
the black matrix layer comprises the first alignment marks, and the material of the first alignment marks is the same as that of the black matrix layer.
6. The display device of claim 1, wherein the display device comprises a display device,
the first alignment mark is a hollowed-out part penetrating through the black matrix layer along the thickness direction of the first substrate.
7. The display device of claim 4, wherein the display device comprises a display panel,
the ink layer comprises a second alignment mark, and the second alignment mark penetrates through the hollowed-out part of the ink layer along the thickness direction of the ink layer.
8. The display device of claim 4, wherein the display device comprises a display panel,
the second alignment mark is made of ink, and the color of the second alignment mark is different from the color of the ink layer in the shading area.
9. The display device of claim 1, wherein the display device comprises a display device,
the display panel further comprises a liquid crystal layer, and the liquid crystal layer is clamped between the first substrate and the second substrate.
10. The display device of claim 1, wherein the display device comprises a display device,
the display panel further comprises an electrophoretic particle layer which is clamped between the first substrate and the second substrate.
11. The display device of claim 1, wherein the display device comprises a display device,
the display panel comprises a substrate, an organic light-emitting diode layer and a thin film packaging layer which are sequentially arranged.
12. The display device of claim 1, wherein the display device comprises a display device,
the opposite substrate is a glass cover plate.
13. The display device of claim 1, wherein the display device comprises a display device,
the opposite substrate includes an opposite substrate and a touch electrode.
14. The display device of claim 1, wherein the display device comprises a display device,
the display area is circular, elliptical or semicircular in shape.
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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 |
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| CN108132554A (en) | 2018-06-08 |
| CN111913316A (en) | 2020-11-10 |
| CN108132554B (en) | 2020-09-25 |
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