TW202001852A - Display device, assembly method, judging method of assembly accuracy and cover element - Google Patents

Abstract

The present disclosure provides a display device including a cover plate, a display panel, and a first ink layer. The display panel is stacked with the cover plate. The first ink layer is provided with at least one group of openings, each group of openings includes a first opening and a second opening that pass through the first ink layer and spaced apart from each other. The display panel includes a plurality of sub-pixels, the sub-pixels includes at least one alignment sub-pixel overlapping with the first ink layer, and each alignment sub-pixel is located between one first opening and one second opening of one group of openings. The electronic device of the present disclosure includes alignment sub-pixel and openings corresponding to the alignment sub-pixel, and it is easy to judge whether the deflection angle of the components in the electronic device is accuracy.

Description

Display device, assembling method, assembling accuracy judgment method and cover plate element

The invention relates to a display device, an assembling method, an assembling accuracy judgment method and a cover plate element.

In conventional electronic devices, taking a display device as an example, with the rise of wearable devices, the conventional rectangular shape has been unable to meet the needs of users. The wearable device may need to be equipped with a non-rectangular display screen, such as a round display screen, a regular triangle display screen, a regular pentagonal display screen, a regular hexagonal display screen, and so on. Generally speaking, during the manufacturing process of the display device, different components need to be aligned and assembled, and the alignment between different components (especially for non-rectangular components) may have a certain position deviation. In order to screen out the components Display devices with deviations within the specified range usually use a measuring instrument to measure the deviations between the components, and then determine whether the display device meets the requirements. However, using a measuring instrument to measure the display device one by one not only consumes a lot of manpower, but because of the limited number of measuring instruments, it is also impossible to quickly screen.

In view of this, it is necessary to provide an electronic device whose assembly process is easy to judge whether the alignment is correct.

A display device, including: a transparent cover plate; a display panel, the display panel and the cover plate are stacked; a first ink layer, the first ink layer partially covers the side of the cover plate facing the display panel The first ink layer is provided with at least one set of openings, each set of openings includes a first opening and a second opening spaced apart from each other through the first ink layer; the display panel defines a plurality of sub-pixels, The sub-pixel includes at least one sub-pixel overlapping the first ink layer; wherein at least one sub-pixel overlapping the first ink layer is a para-sub pixel, and each para-sub pixel is located at a Between the first opening and the second opening of the group of openings.

The invention also provides a cover plate element.

A cover plate element, comprising: a cover plate; a first ink layer partially covering one side of the cover plate; the first ink layer is provided with first openings which penetrate the first ink layer and are spaced apart from each other; A second opening, both the first opening and the second opening are filled with fluorescent ink.

The invention also provides a method for assembling a display device, which includes:

A transparent cover plate is provided, the cover plate is provided with a first ink layer, and the first ink layer partially covers one side of the cover plate;

The first ink layer is provided with a first opening and a second opening spaced apart from each other.

A display panel is provided, the display panel having a plurality of sub-pixels, wherein the plurality of sub-pixels includes at least one counter-pixel;

Assembling the display panel and the cover plate so that the display panel and the cover plate are stacked;

Judging whether the deflection angle between the cover plate and the display panel is greater than θ, when the deflection angle is greater than θ, it means that the alignment of the cover plate and the display panel is inaccurate;

When the deflection angle is not greater than θ, then perform the following steps:

Illuminate the counter pixel;

When light is emitted from the opening, the alignment pixel overlaps with the first opening or the second opening, and the deflection angle between the cover plate and the display panel is θ, indicating that the cover plate and The alignment of the display panel is inaccurate;

When no light is emitted from the opening, the alignment pixel does not overlap with the first opening or the second opening, and the deflection angle between the cover plate and the display panel is less than θ, indicating that the cover plate The alignment with the display panel is accurate.

Compared with the conventional technology, the electronic device of the present invention includes a para pixel and an opening corresponding to the para pixel. It is easy to judge whether the deflection angle of the component in the electronic device conforms to the regulations, avoiding the measurement process and simplifying the screening process.

The drawings show embodiments of the present invention. The present invention can be implemented in many different forms, and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more comprehensive and complete disclosure, and to make those skilled in the art more fully understand the scope of the present invention.

It is understood that although the terms first, second, etc. may be used herein to describe various elements, regions, layers and/or sections, these elements, regions, layers and/or sections should not be limited to these terms. These terms are only used to distinguish one element, region, layer, and/or section from another element, region, layer, and/or section. Therefore, without departing from the teachings of the present invention, the first element, region, layer, and/or section discussed below may be referred to as the second element, region, layer, and/or section.

Embodiments of the present invention are described here with reference to cross-sectional views, which are schematic diagrams of idealized embodiments (and intermediate structures) of the present invention. Thus, different shapes of the illustrations due to manufacturing processes and/or tolerances are foreseeable. Therefore, the embodiments of the present invention should not be interpreted as being limited to the specific shape of the region illustrated here, but should include deviations in the shape due to manufacturing, for example. The regions shown in the figures themselves are only schematic, their shapes are not intended to illustrate the actual shape of the device, and are not intended to limit the scope of the invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art described in the present invention. It should also be understood that terms such as those defined in a general dictionary should be interpreted as having meanings consistent with their meanings in the context of the relevant field, and should not be interpreted in terms of over-idealization or over-formal meaning , Unless clearly defined in this article.

Please refer to FIG. 1, which is a three-dimensional schematic diagram of a display device 100 according to an embodiment of the invention. In this embodiment, the display device 100 is a wearable display device, but it is not limited thereto. In other embodiments, the display device 100 may be another display device.

In this embodiment, the display device 100 is a smart watch. The display device 100 includes a cover plate 1 and a display panel 2 that are stacked. The cover plate 1 can be used to protect other components inside the display device 100. The cover plate 1 is transparent, and it may be a suitable transparent material such as glass or plastic. The display panel 2 may be a liquid crystal display panel or an organic light-emitting display panel, but it is not limited thereto. In this embodiment, the material of the cover plate 1 or the type of the display panel 2 is not limited. The cover plate 1 defines a visible area 101 and a peripheral area 102.

In this embodiment, the cover plate 1 and the display panel 2 are both circular, but it is not limited to this. In other embodiments, the cover plate 1 and the display panel 2 may be provided in other shapes, such as elliptical or other, as required. Polygon.

Please refer to FIG. 2, which is a schematic plan view of a cover plate 1 according to an embodiment of the invention. At least one ink layer is printed on one side of the cover plate 1. In this embodiment, the first ink layer 3 and the second ink layer 4 are printed on the cover plate 1.

In this embodiment, the first ink layer 3 serves as the background color of the peripheral region 102 of the cover plate 1. The first ink layer 3 defines a plurality of sets of openings 31 extending through the thickness direction. In this embodiment, each set of openings 31 is filled with fluorescent ink 5, which can emit light after being excited by light of a specific wavelength. In other embodiments, each group of openings 31 may not be filled with fluorescent ink 5 and may be directly hollowed out. In another embodiment, each group of openings 31 may be filled with a light-transmitting material.

In this embodiment, the first ink layer 3 directly covers the cover plate 1, and the first ink layer 3 may be provided with four sets of openings 31, and each set of openings 31 includes a first opening 311 and a second opening 312 spaced apart from each other. The second ink layer 4 covers the side of the first ink layer 3 away from the cover plate 1, and avoids the opening 31 and does not cover the area where the opening 31 is located.

In an embodiment, other elements may be included between the first ink layer 3 and the cover plate 1, for example, there may be a transparent adhesive layer between the first ink layer 3 and the cover plate 1, as long as the first ink layer 3 and The elements between the cover plates 1 do not affect the light transmission of the opening 31.

As shown in FIG. 2, in this embodiment, the peripheral area 102 is the area covered by the ink layer; the visible area 101 is the area not covered by the ink layer. The visible area 101 is circular, and the peripheral area 102 is a ring shape surrounding the visible area 101, but it is not limited thereto. The shapes of the visible area 101 and the peripheral area 102 are not limited, and can be set to other shapes as needed. The first ink layer 3 serves as the background color of the peripheral area 102 of the cover plate 1.

In an embodiment, the visible area 101 can also be used to implement other functions, for example, as a region for receiving touch sensing operations in a display device with a touch sensing function. In one embodiment, the visible area 101 can be used as a display area of the display screen of the display panel 2 and an area receiving touch sensing operations in a display device having both a display function and a touch sensing function.

As shown in FIG. 2, in this embodiment, both the first ink layer 3 and the second ink layer 4 are ring-shaped. The outer edges of the first ink layer 3 and the second ink layer 4 away from the viewing area 101 are aligned, and the outer edges near the viewing area 101 are misaligned. The coverage area of the second ink layer 4 on the cover plate 1 is smaller than the coverage area of the first ink layer 3.

Please refer to FIG. 3, which is a schematic cross-sectional view of FIG. 1 taken along the line III-III. In this embodiment, the first ink layer 3 and the second ink layer 4 partially cover the surface 110 of the cover plate 1. The surface 110 is a surface that is not exposed when the cover plate 1 is used and is not in contact with the outside. In use, the ink layer can be observed through the cover plate 1. The number of ink layers is not limited, and the peripheral area 102 of the cover plate 1 can be printed with only one ink layer or three or more ink layers according to actual needs.

Please refer to FIG. 4, which is a schematic plan view of a display panel 2 according to an embodiment of the invention. In order to clearly show the positional relationship between the cover plate 1 and the display panel 2, the outer edge of the first ink layer 3 near the viewing area 101 and the opening 31 are shown by dotted lines in FIG. 4. In this embodiment, the display panel 2 is an organic light emitting electroluminescence (OLED) display panel. The display panel 2 defines a pixel array 7, and the pixel array 7 includes a plurality of sub-pixels. In this embodiment, the pixel array 7 defines a first sub-pixel 71, a second sub-pixel 72 and a third sub-pixel 73 arranged in a complex array. The sub-pixels are not only located in the viewing area 101, but also in the peripheral area 102.

In this embodiment, the first sub-pixel 71 is a blue sub-pixel (B), the second sub-pixel 72 is a red sub-pixel (R), and the third sub-pixel 73 is a green sub-pixel (G ). The first sub-pixels 71 are arranged along the first direction (X direction in the figure) to form a plurality of rows, and arranged along the second direction (Y direction in the figure) to form a plurality of columns, the first direction intersects the second direction, in this embodiment , The first direction and the second direction are orthogonal. The second sub-pixels 72 are arranged along the X direction in the figure to form a plurality of rows, and arranged along the Y direction in the figure to form a plurality of columns. The third sub-pixels 73 are arranged in the X direction in the figure to form a plurality of rows, and arranged in the Y direction in the figure to form a plurality of columns.

The first sub-pixels 71 and the second sub-pixels 72 are alternately arranged in the same column. Between every two adjacent columns arranged with the first sub-pixel 71 and the second sub-pixel 72, there is one column with the third sub-pixel 73 arranged. Each adjacent one first sub-pixel 71, one second sub-pixel 72, and one third sub-pixel 73 constitute one pixel unit of the display panel 2. In this embodiment, the pixel array 7 in FIG. 4 is used as an exemplary description. The present invention does not limit the arrangement of the pixel array 7, and the arrangement of the pixel array 7 is not limited to that shown in FIG. 4. The arrangement methods shown can also be other arrangement methods, which are not listed here one by one.

As shown in FIG. 4, the display panel 2 and the cover plate 1 shown in FIG. 4 are aligned and assembled. In actual alignment assembly, there may be a certain alignment tolerance in the positional relationship between the display panel 2 and the cover plate 1. In the pixel array 7, at least one sub-pixel located in the peripheral area 102 overlapping the first ink layer 3 is defined as the alignment sub-pixel 701. According to the definition, a specified point in the display panel 2 is used as the center of rotation (for example, the center point). Compared with the cover plate 1, the display panel 2 is parallel to the cover plate 1, and the allowable deflection angle is less than θ.

As shown in FIG. 4, when the alignment pixel 701 is located in the middle of the corresponding first opening 311 and second opening 312, the deflection angle is 0. After the display panel 2 is rotated counterclockwise by an angle of θ in the direction parallel to the cover plate 1, the position of the first opening 311 and the counter pixel 701 after rotation overlaps in the direction of the cover plate 1, and the display panel 2 is parallel to the cover plate After being rotated clockwise by an angle of θ in the direction of 1, the position where the second opening 312 and the registration pixel 701 are rotated overlaps in the direction of the cover plate 1.

In this embodiment, the alignment pixel 701 and the opening 31 are used to assemble the display device 100 to determine whether the display panel 2 and the cover plate 1 are accurately aligned. When the alignment pixel 701 and the opening 31 do not overlap, the display panel 2 is accurately aligned with the cover plate 1; when the alignment sub-pixel 701 overlaps the opening 31, the alignment of the display panel 2 and the cover plate 1 is inaccurate.

In this embodiment, a row in which the first sub-pixel 71 is arranged in the middle along the X direction in FIG. 4 is defined as a counter-sub-pixel row; a middle in the Y-direction in FIG. 4 is arranged with the first sub-pixel The pixel 71 column serves as a sub-pixel pixel column, and the sub-pixel pixel row 703 and the sub-pixel pixel column 704 intersect. In one embodiment, any row arranged along the X-axis direction in FIG. 4 may be defined as the aligned sub-pixel row 703; any row arranged along the Y direction in FIG. 4 may be defined as the aligned sub-pixel row 704. In this embodiment, the display panel 2 is circular, and the intersection point of the sub-pixel row 703 and the sub-pixel column 704 is the center of the circle of the display panel 2.

In this embodiment, the aligned sub-pixel row 703 includes at least one first sub-pixel 71 that will be covered by the first ink layer 3 after the display panel 2 is attached to the cover plate 1, which is defined as the aligned sub-pixel 701 The alignment sub-pixel column 704 includes at least one first sub-pixel 71 that will be covered by the first ink layer 3 after the display panel 2 is attached to the cover plate 1, which is defined as the alignment sub-pixel 701. The alignment pixel 701 at least partially overlaps the first ink layer 3 in a direction perpendicular to the cover plate 1.

In this embodiment, each pair of sub-pixel rows includes two pair of sub-pixels 701 located at both ends of the pair of sub-pixel rows, and each pair of sub-pixel rows includes two pair of sub-pixels located at both ends of the sub-pixel row For pixel 701, each pair of sub-pixels 701 corresponds to a group of openings 31. However, it is not limited to this, and the number of seat pixels is not limited. In other embodiments, the display panel 2 may have only one alignment pixel 701.

Please refer to FIG. 3 and FIG. 4 together to define that the allowable deflection angle of the alignment pixel 701 using the center of the display panel 2 as the center of rotation during the assembly of the display panel 2 and the cover plate 1 is less than θ. The position pixel 701 is rotated counterclockwise by the angle θ with the center of the display panel 2 as the rotation center, and overlaps the first opening 311 in the direction of the cover plate 1. The position pixel 701 is rotated clockwise by the angle θ with the center of the display panel 2 as the rotation center, and overlaps the second opening 312 in the direction of the cover plate 1. In this embodiment, θ is 1°. In one embodiment, 0°<θ<2°. In other embodiments, 0°<θ<30°.

In this embodiment, the fluorescent ink 5 is a material that emits light when excited by blue light. Please refer to FIGS. 5 and 6 together. After the alignment of the cover plate 1 and the display panel 2 is aligned, when the alignment sub-pixel 701 and the first opening 311 overlap in the direction of the cover plate 1, the alignment of the sub-pixel 701 The emitted light will excite the fluorescent ink 5 filled in the first opening 311 to make the fluorescent ink 5 emit light. Since blue light has a shorter wavelength and stronger energy than red or green light, in this embodiment, the fluorescent ink 5 can only be excited by blue light, and will not be excited by the second sub-pixel 72 that emits red light or the first light that emits green light. The three sub-pixels 73 are excited. In other embodiments, the second sub-pixel 72 can also be defined as a para-pixel and a material excited by red light can be used as the fluorescent ink 5; or the third sub-pixel 73 can be defined as a para-pixel. As the fluorescent ink 5, a material excited by green light is used.

In the manufacturing process of the display device 100, when the cover plate 1 and the display panel 2 are assembled in alignment, the cover plate 1 and the display panel 2 may have alignment errors. After the alignment of the cover plate 1 and the display panel 2 is completed, it is necessary to determine whether the deflection angle between the cover plate 1 and the display panel 2 due to the alignment error meets the requirements.

When the deflection angle between the cover plate 1 and the display panel 2 is less than θ, it is the display device 100 that meets the assembly specifications. When the deviation angle between the cover plate 1 and the display panel 2 is greater than θ, it is the display device 100 that does not meet the assembly specifications. In an embodiment, when the deviation angle of the cover plate 1 and the display panel 2 is not greater than θ, the first sub-pixel 71 in the aligned sub-pixel row 703 and the aligned sub-pixel row 704 is lit to determine the fluorescent ink 5 Whether it shines.

As shown in FIGS. 5 and 6, if the fluorescent ink 5 emits light, the projection of the sub-pixel 701 and the opening 31 in the direction of the cover plate 1 overlaps, and the deflection angle between the cover plate 1 and the display panel 2 at this time Is θ; as shown in FIGS. 2 and 4, if the fluorescent ink 5 does not emit light, the alignment pixel 701 is located between the corresponding first opening 311 and the second opening 312, at this time the cover plate 1 and the display panel The deflection angle between 2 is less than θ.

For the display device 100 whose deflection angle between the cover plate 1 and the display panel 2 is smaller than θ, since the projection of the opening 31 and the first sub-pixel 71 in the direction of the cover plate 1 does not overlap, the fluorescent ink 5 does not It will be excited by the light emitted by the first sub-pixel 71.

In other embodiments, the opening 31 may not be filled with the fluorescent ink 5 and may be hollowed out or filled with other light-transmitting materials. When the light emitted from the sub-pixel 701 passes through the opening 31, the projections of the sub-pixel 701 and the opening 31 in the direction of the cover 1 overlap, and the deflection angle between the cover 1 and the display panel 2 is θ. When the light emitted by the alignment pixel 701 does not pass through the opening 31, the alignment pixel 701 is located between the corresponding first opening 311 and the second opening 312, and the deflection angle between the cover plate 1 and the display panel 2 at this time Less than θ.

In this embodiment, the alignment assembly between the cover plate 1 and the display panel 2 of the display device 100 is taken as an example for description, but it is not limited to this, in other embodiments, it may be a pair between components of other electronic devices Bit assembly.

In an embodiment, an electronic device may include a first element and a second element, the second element and the first element are stacked, the first ink layer partially covers one side of the first element; the first ink layer is provided with at least one Group of openings, each group of openings includes a first opening and a second opening spaced apart from each other through the first ink layer; the openings can be filled with fluorescent ink, the second element defines at least one in a direction perpendicular to the first element The light-emitting unit that overlaps the first ink layer, when the light-emitting unit and the opening overlap in the direction perpendicular to the first element, the fluorescent ink in the opening can be excited to make the fluorescent ink emit light, thereby judging the first element and the first The positional relationship between the two components.

Please refer to FIG. 7, which is a flowchart of an assembly method of a display device according to an embodiment of the invention. An assembly method of a display device according to an embodiment of the invention includes:

Step 1: Provide a transparent cover plate 1, a first ink layer 3 is provided on one side of the cover plate 1, the first ink layer 3 partially covers the cover plate 1; the first ink layer 3 is provided with at least one set of openings 31, each A group of openings 31 includes a first opening 311 and a second opening 312 spaced apart from each other;

Step 2: Provide a display panel 2, the display panel 2 has a plurality of sub-pixels, wherein the plurality of sub-pixels includes at least one alignment sub-pixel 701;

Step 3: Assemble the display panel 2 and the cover plate 1 so that the display panel 2 and the cover plate 1 are stacked;

Step 4: Determine whether the deflection angle between the cover plate 1 and the display panel 2 is greater than θ. When the deflection angle between the cover plate 1 and the display panel 2 is greater than θ, it means that the alignment between the cover plate and the display panel is not accurate.

In this embodiment, θ=1°.

When the deflection angle is not greater than θ, then perform the following steps:

Step 5: Light up the alignment pixel 701 of the display panel 2. In this embodiment, the first sub-pixel 71 in the aligned sub-pixel row 703 and the aligned sub-pixel row 704 of the display panel 2 can be illuminated to avoid the operational difficulty of lighting a single aligned sub-pixel 701.

Step 6: Determine whether light is emitted in the opening 31. When the alignment pixels and the opening overlap in the direction perpendicular to the cover plate, light is emitted from the opening 31, and the deflection angle between the cover plate 1 and the display panel 2 is θ, indicating that the cover plate and the display panel The alignment is inaccurate; when the alignment pixel is located between a set of first and second openings, no light is emitted from the opening 31, and the deflection angle between the cover plate 1 and the display panel 2 is less than θ, which means that The alignment of the cover plate and the display panel is accurate.

In this embodiment, the fluorescent ink 5 may be provided in the opening 31. When the alignment pixel and the opening overlap in the direction perpendicular to the cover plate, the fluorescent ink emits light, indicating that the cover plate and the display The alignment of the panel is inaccurate; when the alignment pixel is located between the first opening 311 and the second opening 312, the fluorescent ink does not emit light, which means that the alignment of the cover plate and the display panel is accurate.

As shown in FIGS. 5 and 6, in this embodiment, if the fluorescent ink emits light, it can be determined that the deflection angle between the cover plate 1 and the display panel 2 at this time is θ, and the alignment of the display panel and the cover plate is inaccurate ;

As shown in FIGS. 3 and 4, in this embodiment, if the fluorescent ink does not emit light, it can be determined that the deflection angle between the cover plate 1 and the display panel 2 is less than θ at this time, and the display panel and the cover plate are accurately aligned .

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced, and Without departing from the spirit and scope of the technical solution of the present invention.

100‧‧‧Display device 1‧‧‧cover 101‧‧‧viewable area 102‧‧‧ surrounding area 110‧‧‧Surface 2‧‧‧Display panel 3‧‧‧First ink layer 31‧‧‧ opening 311‧‧‧First opening 312‧‧‧Second opening 4‧‧‧Second ink layer 5‧‧‧fluorescent ink 7‧‧‧Pixel array 71‧‧‧The first pixel 72‧‧‧Second sub-pixel 73‧‧‧The third sub-pixel 701‧‧‧ Pair of pixels

FIG. 1 is a three-dimensional schematic diagram of an electronic device according to an embodiment of the invention.

2 is a schematic plan view of a cover plate according to an embodiment of the invention.

FIG. 3 is a schematic cross-sectional view of FIG. 1 taken along the line III-III.

4 is a schematic plan view of a display panel according to an embodiment of the invention.

5 is a schematic plan view of a display panel according to another embodiment of the invention.

6 is a schematic cross-sectional view of FIG. 5 taken along the line VI-VI.

7 is a flowchart of an assembly method of a display device according to an embodiment of the invention.

101‧‧‧viewable area

2‧‧‧Display panel

31‧‧‧ opening

311‧‧‧First opening

312‧‧‧Second opening

7‧‧‧Pixel array

71‧‧‧The first pixel

72‧‧‧Second sub-pixel

73‧‧‧The third sub-pixel

701‧‧‧ Pair of pixels

Claims (10)

A display device, the improvement of which includes: a transparent cover plate; a display panel having a plurality of sub-pixels, the display panel and the cover plate being stacked; and a first ink layer having a first opening and a second opening , The first ink layer partially covers the side of the cover plate facing the display panel; wherein the plurality of sub-pixels includes a counter-sub-pixel overlapping with the first ink layer, the sub-pixel is located at the first Between an opening and a second opening. The display device according to claim 1, wherein the first opening and the second opening are filled with fluorescent ink. The display device according to claim 2, wherein the para-pixel is a blue sub-pixel, and the fluorescent ink is a material excited by blue light. The display device according to claim 1, wherein the first opening and the second opening are filled with a light-transmitting material. The display device according to claim 1, wherein: the display device defines a display area and a peripheral area surrounding the display area, the first ink layer is located in the peripheral area; the plural sub-pixels include The sub-pixels in the display area and the counter-pixels in the surrounding area. The display device according to claim 1, wherein the plurality of sub-pixels are arranged in a first direction to form a plurality of rows, and are arranged in a second direction to form a plurality of columns, and the alignment sub-pixels include at least two alignment sub-pictures Pixels, the at least two pairs of sub-pixels are located in different rows and different columns. A cover plate element, comprising: a cover plate; a first ink layer partially covering one side of the cover plate; the first ink layer is provided with a first opening and a second opening spaced apart from each other, the Both the first opening and the second opening are filled with fluorescent ink. A method for assembling a display device, comprising: providing a transparent cover plate, a first ink layer is provided on one side of the cover plate, the first ink layer partially covers the cover plate; the first ink layer A first opening and a second opening spaced apart from each other are provided; a display panel is provided, the display panel having a plurality of sub-pixels, the plurality of sub-pixels including para-pixels; assembling the display panel and the cover Panel, the display panel and the cover panel are stacked; judging whether the deflection angle between the cover panel and the display panel is greater than θ, when the deflection angle is greater than θ, it means that the cover panel and the display Panel alignment is inaccurate; when the deflection angle is not greater than θ, then perform the following steps: light up the alignment sub-pixel; when light is emitted from the opening, the alignment sub-pixel and the first opening Or the second openings overlap, and the deflection angle between the cover plate and the display panel is θ, indicating that the alignment of the cover plate and the display panel is inaccurate; when no light is emitted from the opening, the The alignment pixel does not overlap with the first opening or the second opening, and the deflection angle between the cover plate and the display panel is less than θ, indicating that the alignment of the cover plate and the display panel is accurate. The method for assembling the display device according to claim 8, wherein: the first opening and the second opening are filled with fluorescent ink; after the alignment pixel is lit, when the alignment pixel When overlapping with the first opening or the second opening, the fluorescent ink emits light; when the alignment pixel does not overlap with the first opening or the second opening, the fluorescent ink Does not shine. The method for assembling a display device according to claim 8, wherein: the plurality of sub-pixels are arranged in a first direction to form a plurality of rows, and the second sub-pixels are arranged in a second direction to form a plurality of columns, and when the counter-sub-pixels are lit, It includes lighting the row where the alignment pixels are located or the column where the alignment pixels are located.

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