Display device

Abstract

A display device includes a plurality of display units, a plurality of display unit fixing members, a plurality of first adhesive members, and a second adhesive member. The plurality of display units are arranged in an array as a display surface of the display device, and have a joint area between adjacent two display units. The plurality of display unit fixing members are provided on the plurality of display units. The plurality of first adhesive members are provided on the joint area, and both ends of the first adhesive member contact the adjacent two display units, respectively. The second adhesive member is provided between the first adhesive member and the plurality of display unit fixing members, and a part of the second adhesive member overlaps the first adhesive member.

Description

Technical Field

[0001] This invention relates to an electronic device, and more particularly to a display device. Background Technology

[0002] In order to meet the demand for large display areas in display devices, splicing displays composed of multiple display units have gradually become a solution for relevant manufacturers in recent years.

[0003] However, due to the limited precision in the processing of each component, there will be unavoidable tolerances in the size or thickness of each display unit. This causes uneven horizontal offsets between display units when they are spliced ​​and assembled due to pressure from other components, making it difficult to control the spacing between them. Besides causing assembly difficulties, compared to the fixed spacing of the light-emitting elements on each display unit, if the spacing of the splicing area between the display units is too large, it is easy to form dark lines when the display is lit; if the spacing is too small, it is easy to form bright lines. To improve the display quality of the splicing area, increase production yield, reduce assembly difficulty, and lower production costs, it is necessary to develop a method and architecture for the efficient production of spliced ​​displays. Summary of the Invention

[0004] The purpose of this invention is to provide a display device with better splicing alignment accuracy, convenient rework, and high assembly yield.

[0005] In one embodiment of the present invention, the display device includes a plurality of display units, a plurality of display unit fixing members, a plurality of first adhesive members, and a second adhesive member. The plurality of display units are arranged in an array to form the display surface of the display device, and a splicing area is provided between adjacent display units. The plurality of display unit fixing members are disposed on the plurality of display units. The plurality of first adhesive members are disposed on the splicing area, and both ends of the first adhesive members respectively contact adjacent two display units. The second adhesive member is disposed between the first adhesive members and the plurality of display unit fixing members, and a portion of the second adhesive member overlaps the first adhesive members.

[0006] Based on the above, since the multiple first adhesive members of the display device of the present invention can pre-fix multiple display units, the horizontal displacement between each display unit can be reduced when each display unit is laminated and assembled with other components (e.g., multiple display unit fixing members). On the other hand, by using the second adhesive member in conjunction with the first adhesive member, in addition to secondary fixing, further strengthening the bonding strength between each display unit and other components, and reducing the warping of the multiple display unit fixing members, the second adhesive member can also balance the thickness of the first adhesive member, making the thickness between the multiple display unit fixing members and the display units more uniform. This improves the splicing alignment accuracy of the display device, reduces rework difficulty, and increases the assembly yield.

[0007] To make the above features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description

[0008] Figure 1A An exploded view of a display device according to a first embodiment of the present invention.

[0009] Figure 1B yes Figure 1A A cross-sectional view of the display device along section line AA'.

[0010] Figure 2 An exploded view of a display device according to a second embodiment of the present invention.

[0011] Figure 3 An exploded view of a display device according to a third embodiment of the present invention.

[0012] Figure 4 This is a diagram showing the relationship between the warping of multiple display unit fixing components and the spacing between different splicing areas when using different first adhesives.

[0013] The attached figures are labeled as follows:

[0014] 1, 2, 3: Display device

[0015] 100A, 100B, 100C, 100D: Light-emitting units

[0016] 100S1, 100S2: Side of the light-emitting unit

[0017] 110: Multiple display unit fixing components

[0018] 110S1, 110S2, 110S3, 110S4: Outer edge

[0019] 110S5: Inner edge

[0020] 120, 120': First adhesive component

[0021] 120L1, 120L2, 120'L: Length

[0022] 121: First End

[0023] 122: Second End

[0024] 123: Third end

[0025] 130: Second adhesive component

[0026] 131: Part One

[0027] 132: Part Two

[0028] 140: Light-emitting element

[0029] AD: Alignment direction

[0030] AA': Section line

[0031] D1, D2: Thickness

[0032] SA: Splicing Area

[0033] SAL: Total length of the splicing area

[0034] X, Y, Z: Direction Detailed Implementation

[0035] As used herein, “about,” “approximately,” “essentially,” or “substantially” includes the value and the average value within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account the measurement under discussion and a particular number of errors associated with the measurement (i.e., limitations of the measurement system). For example, “about” may mean within one or more standard deviations of the value, or, for example, within ±30%, ±20%, ±15%, ±10%, ±5%. Furthermore, the use of “about,” “approximately,” “essentially,” or “substantially” herein may be chosen to select a more acceptable range of deviations or standard deviations depending on the nature of the measurement, the cutting nature, or other properties, and may not require a single standard deviation to apply to all properties.

[0036] In the accompanying drawings, the thicknesses of layers, films, panels, regions, etc., are enlarged for clarity. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or intermediate elements may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate elements are present. As used herein, "connection" can refer to a physical and / or electrical connection. Furthermore, an "electrical connection" may mean the presence of other elements between two elements.

[0037] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same element reference numerals are used in the drawings and description to denote the same or similar parts.

[0038] Figure 1A An exploded view of a display device according to a first embodiment of the present invention. Figure 1B yes Figure 1A The display device is shown in a cross-sectional view along section line AA'. Please also refer to... Figure 1A as well as Figure 1BThe display device 1 includes multiple display units (e.g., display unit 100A, display unit 100B, display unit 100C, and display unit 100D), multiple display unit fixing members 110, multiple first adhesive members 120, and second adhesive members 130. Display units 100A, 100B, 100C, and 100D are arranged in an array to serve as the display surface of the display device 1. Sides 100S1 and 100S2 of the multiple display units can be considered as edges of the display device 1, and a splicing area SA exists between adjacent display units (e.g., between display unit 100A and display unit 100C). For ease of presentation, the display device 1 is described as including 2*2 display units. However, the present invention does not limit the number or arrangement of display units. In other embodiments, the display device may include 3*4 display units, 9*16 display units, or two display units, etc., and the present invention is not limited thereto.

[0039] Furthermore, display units 100A, 100B, 100C, and 100D can each include multiple light-emitting elements 140. Each light-emitting element 140 can be a single micro LED, a single miniature LED, or a single organic light-emitting diode (OLED). The structure of the light-emitting element 140 can also be a standard LED, a vertical LED, or a flip-chip LED, and the invention is not limited thereto. In addition, the multiple light-emitting elements 140 can also be a combination of various types of light-emitting diodes. For example, the multiple light-emitting elements 140 can include various combinations of red-emitting LEDs (wavelength between 600nm and 770nm), green-emitting LEDs (wavelength between 495nm and 590nm), and blue-emitting LEDs (wavelength between 420nm and 495nm). Furthermore, the proportion of different types of light-emitting diodes in the light-emitting elements 140 can be adjusted according to requirements. The invention is not limited thereto. Multiple light-emitting elements 140 can be electrically connected to each display unit 100A (or display unit 100B, display unit 100C and display unit 100D) to provide a display image.

[0040] For example, the display unit 100A may include alternately stacked conductive redistribution layers, including multiple metal layers (not shown) and multiple insulating layers (not shown). One of these metal layers is used to form multiple conductive patterns, another is used to form multiple pad patterns, and yet another is used to form multiple transition patterns. These transition patterns can electrically connect the conductive patterns and the pad patterns respectively through multiple contact holes in these insulating layers. That is, these metal layers can form multiple electrically insulated conductive paths in the display unit 100A. The multiple light-emitting elements 140, which are bonded to these conductive patterns on the display unit 100A, can be electrically connected to these pad patterns respectively through these conductive paths. The light-emitting units 100A can be electrically bonded to a driving circuit substrate (not shown) through these pad patterns. That is, the driving circuit substrate includes at least one driving circuit chip IC, which, for example, has transistors or integrated circuits (ICs) that can be electrically connected to the multiple light-emitting elements 140 to control the display signals of the multiple light-emitting elements 140, without limitation. The structures of display units 100B, 100C, and 100D are similar to those of display unit 100A, and will not be described in detail here.

[0041] Multiple display unit fasteners 110 are disposed on display units 100A, 100B, 100C, and 100D, and can be assembled with the components in the display device 1 via other fasteners (not shown) or adhesives (such as the first adhesive 120 or the second adhesive 130). The multiple display unit fasteners 110 can be formed by stamping from a single piece of material or by splicing multiple sets of sheet metal together; the invention is not limited thereto. The material of the multiple display unit fasteners 110 can include metal sheet or plastic, and the outer edges 110S1, 110S2, 110S3, and 110S4 of the multiple display unit fasteners 110 can be considered as the boundaries of the display device 1; the invention is not limited thereto.

[0042] Multiple first adhesive members 120 are disposed on the splicing area SA, and the first end 121 and the second end 122 of the first adhesive member 120 can respectively contact two adjacent display units. Specifically, in the splicing area SA between display units 100B and 100D, in the projection direction of the display device 1 (e.g., ... Figure 1AIn the direction Z), the first adhesive member 120 can cover the splicing area SA and contact and adhere to the display unit 100D using its first end 121 that overlaps with the display unit 100D; and contact and adhere to the display unit 100B using its second end 122 that overlaps with the display unit 100B. Similarly, multiple first adhesive members 120 can also be provided in each splicing area SA between display units 100A and 100B, between display units 100A and 100C, and between display units 100C and 100D. For example Figure 1A A total of eight first adhesive elements 120 are shown, which are respectively disposed in the splicing area SA between each display unit; however, the present invention is not limited to the number of first adhesive elements 120.

[0043] In other embodiments, the first adhesive member 120 may also be disposed at the geometric center of the display units 100A to 100D arranged in a 2x2 array. For example, one end of the first adhesive member 120, such as the first end 121, may contact the display units 100C and 100D respectively; while the other end of the first adhesive member 120, such as the second end 122, may contact the display units 100A and 100B respectively. Thus, the opposite ends of a single first adhesive member 120 can be disposed simultaneously on four adjacent display units, and cover the splicing area SA between the four adjacent display units, and contact and pre-fix each of the four display units 100A to 100D.

[0044] Preferably, the first adhesive element 120 can be made of a material with tensile strength, flexibility, and adhesiveness. For example, the first adhesive element 120 can be single-sided or double-sided tape, which facilitates construction and reduces assembly costs and time. Furthermore, compared to the embodiment where adhesive is applied to the sides of each display unit, i.e., within the splicing area SA, attaching the first adhesive element 120 to each display unit 100A to display unit 100D avoids increasing the spacing of the splicing area SA. In high-resolution displays, this also helps to reduce the visibility of the splicing area SA in the display device 1.

[0045] Specifically, the first adhesive element 120 may comprise a composite material consisting of a plastic polymer such as polyethylene terephthalate (PET) or polyimide (PI), or a mixed film of plastic polymers; however, the invention is not limited thereto. The first adhesive element 120 may also be a single material or a combination of multiple materials. When the first adhesive element 120 is composed of a composite of multiple materials, the closer the tensile material is to the display device 1, the better the fixing effect of the first adhesive element 120 will be. In some embodiments, the material of the first adhesive element 120 may also be a metallic material with conductive properties. For example, it may include any one of copper (Cu), aluminum (Al), or alloys of the above metals.

[0046] It is worth mentioning that the edge of the first adhesive member 120 is based on the boundary of the display device 1. For example, on the right side of the display device 1, the boundary of the third end 123 of the first adhesive member 120 protruding away from the display device 1 does not exceed the side edge 100S1. Similarly, on the upper side of the display device 1, the boundary of the first adhesive member 120 protruding away from the display device 1 also does not exceed the side edge 100S2. Each first adhesive member 120 provided on the side of the display device 1 can also adopt the above configuration, which will not be described in detail here. Since the first adhesive member 120 does not exceed the boundary of the display device 1, when the display device 1 needs to be spliced ​​with other display units (not shown), the first adhesive member 120 can be prevented from sticking to the other display units, and the first adhesive member 120 can be prevented from affecting the spacing between the display device 1 and the other display units.

[0047] In the thickness direction (e.g., direction Z) of the display device 1, a second adhesive member 130 is disposed between the first adhesive member 120 and the plurality of display unit fixing members 110. In some embodiments, the second adhesive member 130 is detachable, and a first portion 131 of the second adhesive member 130 overlaps the first adhesive member 120. Specifically, the second adhesive member 130 can be first attached to the side of the plurality of display unit fixing members 110 facing the display units 100A to 100D (i.e., Figure 1A or Figure 1B(in the opposite direction of Z in the process), and during the assembly of the display device 1, in the alignment direction AD, the first portion 131 of the second adhesive 130 is aligned and bonded to the first adhesive 120. The number of second adhesives 130 can be multiple, and second adhesives 130 are provided at each corner of the multiple display unit fixing members 110; however, the invention is not limited to this. In other embodiments, the second adhesive 130 can be a single strip, covering a large area, and fully attached to the splicing area SA. Preferably, the second adhesive 130 can be an easy-pull adhesive (also known as removable adhesive or stretch adhesive tape). Therefore, the second adhesive 130 can be separated from the first adhesive 120 by pulling to reduce the adhesion between it and the first adhesive 120, as well as the adhesion between it and the multiple display unit fixing members 110.

[0048] As described above, the plurality of first adhesive members 120 can be pre-attached and pre-fixed to each display unit 100A to display unit 100D before assembling the remaining components (e.g., the plurality of display unit fixing members 110). Therefore, even if there are tolerances in the thickness direction among the display units 100A to display unit 100D, the plurality of first adhesive members 120 can effectively reduce the planar displacement between the display units 100A to display unit 100D during the lamination assembly of the plurality of display unit fixing members 110 and each display unit. Figure 1A The displacement in direction X and direction Y. Improve the alignment accuracy of display units 100A to 100D and control the spacing of the splicing area SA to reduce the generation of dark lines between display units 100A to 100D when the display device 1 is lit.

[0049] Furthermore, when the display device 1 is a spliced ​​micro-LED display, the pixel pitch of the high-resolution micro-LED display is extremely small (e.g., 625 micrometers). Through the pre-fixation of the first adhesive member 120 and the combination of the second adhesive member 130 in this embodiment, the displacement in direction X and direction Y of each display unit 100A to display unit 100D can be controlled within 5% of the pixel pitch (that is, the offset in each direction can be substantially controlled to be less than 30 micrometers). Therefore, even when viewed at close range or from various angles, it is difficult to observe the area where the splicing area SA exists, effectively improving the product display quality of the display device 1.

[0050] Furthermore, when the second adhesive 130 is attached to the first adhesive 120 and is detachable, it not only facilitates the rework of the multiple display unit fixing parts 110 in case of errors during the assembly of the multiple display unit fixing parts 110 with each display unit 100A to 100D, but also further strengthens the bonding strength of the components in the display device 1 and reduces the warping of the multiple display unit fixing parts 110, thereby improving the alignment accuracy of the components in the display device 1, reducing assembly difficulty, and indirectly improving the product yield of the display device 1. Of course, the present invention is not limited to this. In other embodiments, if a stronger bonding effect is considered without regard to yield factors, the second adhesive 130 may also be made of a non-reworkable material.

[0051] It is worth mentioning that, in addition to having a first portion 131 that overlaps with the first adhesive member 120, the second adhesive member 130 also has a second portion 132 that does not overlap with the plurality of display unit fixing members 110 and the first adhesive member 120. In other words, in the projection direction of the display device 1, the second portion 132 of the second adhesive member 130 can be exposed outside the plurality of display unit fixing members 110 without being obstructed by the solid portions of the plurality of display unit fixing members 110, which facilitates the application of force and pulling of the second adhesive member 130 for rework. The invention is not limited thereto.

[0052] In some embodiments, the second portions 132 of the plurality of second adhesive members 130 can respectively contact the outer edges 110S1, 110S2, 110S3, and 110S4 of the adjacent plurality of display unit fixing members 110. In other words, the second portions 132 that are not obscured by the plurality of display unit fixing members 110 can be bent upward toward the display surface direction (e.g., direction Z) of the display device 1 and correspondingly adhered to each side of the plurality of display unit fixing members 110, which is beneficial for the storage of the plurality of second adhesive members 130 and enhances the overall aesthetics of the display device 1.

[0053] In some embodiments, the visible light transmittance of the plurality of first adhesive members 120 may be less than 5%. Low transmittance reduces light leakage inside the display device 1, preventing unexpected light leakage in the front splicing area SA of the display device 1. In some embodiments, the adhesive strength of the plurality of first adhesive members 120 may be greater than 1 Newton / cm. When assembling the display device 1 with warped multiple display unit fasteners 110, the first adhesive members 120 with better adhesive strength help maintain the spacing between the display units (described later).

[0054] On the other hand, in order to ensure that the first adhesive 120 has sufficient tensile strength and adhesion, the attachment area and thickness of the first adhesive 120 must be maintained in an appropriate ratio. For example, the sum of the lengths 120L1 of the first adhesive 120 located between display unit 100A and display unit 100C and the length 120L2 of another first adhesive 120 can be less than half of the total length SAL in the splicing area SA in the direction parallel to the length 120L1. Since the attachment ratio of the first adhesive 120 is small, the thickness D1 of the first adhesive 120 can actually be 35 micrometers (μm), while the thickness D2 of the second adhesive 130 before lamination can actually be 200 micrometers (μm). Therefore, the thickness between the multiple display unit fixing members 110 and each display unit after splicing will still be mainly determined by the second adhesive 130. Because the overlapping area of ​​the elastic and soft second adhesive 130 and the first adhesive 120 will have its thickness reduced by approximately 10% during splicing, the total thickness of the overlapping area of ​​the first adhesive 120 and the second adhesive 130 is 200(1-10%)+35.

[0055] =215 (um). The thickness D2 of the second adhesive 130 in other areas is only 7.5% different from 200um, thus providing better thickness uniformity. Also, when compressive stress is generated during assembly, it ensures that the first adhesive 120 can maintain the preset positions of each display unit 100A to display unit 100D, reducing planar offset during assembly. In some embodiments, the thickness D1 of the first adhesive 120 may not be overly restricted, which facilitates the diversity of material selection and reduces the material requirements of the first adhesive 120. Specifically, the ratio of the total length of the splicing area SA covered by the first adhesive 120 to the total length SAL of the splicing area can be greater than 0.5. Similar effects can be achieved, which will not be elaborated further here.

[0056] The following are some other embodiments to illustrate the present invention in detail, wherein the same components will be marked with the same symbols, and the description of the same technical content will be omitted. For the omitted parts, please refer to the foregoing embodiments, and they will not be repeated below.

[0057] Figure 2 An exploded view of a display device according to a second embodiment of the present invention. Please refer to... Figure 2 The display device 2 in this embodiment and Figure 1A The display device is similar to the display device 1, except that the first adhesive member 120 and the second adhesive member 130 are arranged differently.

[0058] In detail, compared to the first adhesive 120 of display device 1, which is adhered to each display unit 100A to display unit 100D, and then assembled by attaching a second adhesive 130 to the side of the plurality of display unit fixing members 110 facing each display unit 100A to display unit 100D. The first adhesive 120 and the second adhesive 130 of display device 2 can be cut together according to the required size and then jointly attached to the splicing area SA of each display unit 100A to display unit 100D. Alternatively, the number of each second adhesive 130 in display device 2 can be equal to the number of first adhesives 120. This reduces the alignment requirements between the first adhesives 120 and the second adhesives 130 and also facilitates the assembly of display device 2.

[0059] Similar to the aforementioned, in order to prevent the second adhesive member 130 from blocking the light-emitting elements 140 of display units 100A to 100D from emitting light, the second adhesive member 130 located at the center of the display device 2 (for example, Figure 2 The center of the display device 2 is illustrated by example, showing the second part 132 of four second adhesive members 130 disposed on the first adhesive member 120. These second parts can be bent in the thickness direction of the plurality of display unit fixing members 110 and attached to the inner edge 110S5 of the plurality of display unit fixing members 110.

[0060] Figure 3 An exploded view of a display device according to a third embodiment of the present invention. Please refer to... Figure 3 The display device 3 in this embodiment and Figure 1A The display device is similar to the display device 1, except that the first adhesive member 120' is set differently.

[0061] In the display device 3, the first adhesive member 120' can be attached to the entire splicing area SA of the display device 1, completely covering the splicing area SA between each display unit 100A and display unit 100D. That is, in the projection of the display device 3, the ratio of the total length 120'L of the splicing area SA covered by the first adhesive member 120' to the total length SAL of the splicing area is essentially 1. By having the first adhesive member 120' cover the splicing area SA with a large area and completely, it is beneficial to increase the overall structural stability of the display device 3 and the precision control during the assembly process.

[0062] Figure 4 This diagram illustrates the relationship between the warping of multiple display unit fixing components and the spacing between different splicing zones when using different first adhesives. Please refer to [link / reference]. Figure 4In this experiment, different first adhesives A and B were used. For multiple display unit fixtures 110 with different degrees of warpage (e.g., the horizontal axis parameter in the figure), the spacing values ​​of the splicing areas SA in the X and Y directions of the display device 1 were measured. The adhesive strength of first adhesive A is approximately 2.7 N / cm, and its thickness is approximately 60 μm, while the adhesive strength of first adhesive B is approximately 7.5 N / cm, and its thickness is approximately 100 μm. It can be observed that when first adhesives A and B have the same attachment area in the display device 1, using first adhesive B with better adhesive strength results in a smaller splicing area SA spacing value in both the X and Y directions, even when multiple display unit fixtures 110 have the same degree of warpage. Furthermore, when the warpage of multiple display unit fixtures 110 gradually increases, first adhesive B with better adhesive strength also helps maintain the spacing of the splicing areas SA, reducing the displacement during assembly between display units 100A and 100D. Therefore, the higher the adhesion of the first adhesive 120, the better it is at resisting tolerance warping problems.

[0063] In summary, the multiple first adhesive members of the display device of the present invention can pre-fix multiple display units, thereby reducing the horizontal displacement between the display units when they are assembled with other components (e.g., multiple display unit fixing members). On the other hand, by using second adhesive members in conjunction with first adhesive members, in addition to further strengthening the bonding strength between each display unit and other components and reducing the warping of the multiple display unit fixing members, the second adhesive members can also balance the thickness of the first adhesive members, resulting in a more uniform thickness between the multiple display unit fixing members and the display units. This improves the splicing alignment accuracy of the display device, reduces rework difficulty, and increases assembly yield.

[0064] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A display device, comprising: Multiple display units are arranged in an array to serve as the display surface of the display device, wherein there is a splicing area between adjacent display units; Multiple display unit fasteners are disposed on multiple display units; Multiple first adhesive components are disposed on the splicing area, and the two ends of one of the multiple first adhesive components respectively contact the two adjacent display units; as well as A second adhesive member is disposed between the first adhesive member and the plurality of display unit fixing members, and a portion of the second adhesive member overlaps the first adhesive member; The displacement of each display unit in direction X and direction Y is less than 5% of the pixel pitch of the display device.

2. The display device of claim 1, wherein the material of the plurality of first adhesive members comprises a plastic polymer or a mixed film of plastic polymers.

3. The display device of claim 1, wherein the material of the plurality of first adhesive members includes any one of copper, aluminum, or an alloy of the above metals.

4. The display device of claim 1, wherein the visible light transmittance of the plurality of first adhesive elements is less than 5%.

5. The display device of claim 1, wherein the adhesiveness of the plurality of first adhesive members is greater than 1 Newton / cm.

6. The display device of claim 1, wherein the ratio of the total length of the splicing area covered by the plurality of first adhesive members to the total length of the splicing area is greater than 0.

5.

7. The display device of claim 1, wherein another portion of the second adhesive member does not overlap the plurality of display unit fixing members.

8. The display device of claim 1, wherein another portion of the second adhesive member contacts the outer edge of the plurality of display unit fixing members.

9. The display device of claim 1, wherein the display unit comprises a plurality of light-emitting elements, wherein the plurality of light-emitting elements are one of light-emitting diodes, micro light-emitting diodes or organic light-emitting diodes.

10. The display device of claim 1, wherein the plurality of display units further comprises being arranged in a 2 The array comprises four display units, and the plurality of first adhesive members further includes another first adhesive member disposed at the geometric center of the four display units, the other first adhesive member contacting each of the four display units.

11. The display device of claim 1, wherein the second adhesive member is detachable.

Images