TW202209280A - Stretchable display - Google Patents

Abstract

A stretchable display includes a substrate, a plurality of first electronic devices and a plurality of bridges. The substrate is provided with a first face, a second face and a plurality of through holes. The first face and the second face are on the two relative sides of the substrate. The plurality of through holes are disposed between the first face and the second face. The plurality of first electronic devices are disposed on the first face. The plurality of bridges are disposed on the second face. Each first electronic device utilizes the plurality of through holes to couple with the plurality of bridges. The plurality of bridges sends an electrical signal which is emitted by the one of the plurality of first electronic devices to the another electronic first device who is coupled with the first electronic device which emits the electrical signal.

Description

stretchable display

The present invention relates to a stretchable display that utilizes bridges and a plurality of through holes to couple a plurality of first electronic components to each other.

The stretchable display is a fully flexible display that can be folded and stretched in any direction, rather than the unidirectional bending of the general flexible display. Therefore, the size of the stretchable display can be expanded or reduced according to the actual situation without affecting the picture. display, making it broader in applications such as mobile phones, wearables or car dashboards.

Existing stretchable displays use stretchable bridges to connect islands to each other, and the area occupied by the stretchable bridges and islands on the plane affects the amount of stretching the display can withstand, and can The longer the stretch trace, the greater the amount of stretch it can withstand. However, the stretchable display has a problem of reduced resolution after stretching, and how to improve the aforementioned defect has become a problem to be solved.

In view of the foregoing, the inventors of the present invention have considered and designed a stretchable display, in order to improve the deficiencies of the prior art, thereby enhancing the implementation and utilization in the industry.

In view of the above-mentioned conventional problems, an object of the present invention is to provide a stretchable display to solve the problems faced in the prior art.

Based on the above object, the present invention provides a stretchable display, which includes a substrate, a plurality of first electronic components and a plurality of bridges. The substrate has a first surface, a second surface and a plurality of through holes, the first surface and the second surface are arranged opposite to each other, and the plurality of through holes are arranged between the first surface and the second surface. A plurality of first electronic components are arranged on the first surface. A plurality of bridging elements are arranged on the second surface, each first electronic element is coupled to the plurality of bridging elements through a plurality of through holes, and the plurality of bridging elements transmits an electronic signal received by one of the plurality of the first electronic elements to the other coupled one. A first electronic component.

In the embodiment of the present invention, the plurality of first electronic components are arranged separately from each other.

In the embodiment of the present invention, there are a plurality of grooves on the first surface of the substrate, and each groove is arranged between each of the first electronic components, and further, the position where the grooves are projected on the second surface overlaps the position of the bridge member. Location.

In an embodiment of the present invention, each bridge member has a first end and a second end, and the first end and the second end are respectively coupled to two adjacent first electronic components.

In an embodiment of the present invention, the plurality of bridges comprise U-shaped or wavy wires.

In an embodiment of the present invention, the second surface includes an auxiliary area, the stretchable display further includes a plurality of second electronic components, and the plurality of second electronic components are disposed in the auxiliary area and are electrically connected to each other.

In an embodiment of the present invention, the first surface includes a plurality of accommodating areas, and the plurality of accommodating areas accommodate a plurality of first electronic components.

In the embodiment of the present invention, if the auxiliary area partially overlaps the positions of the plurality of first electronic components, the first electronic components located in different accommodating areas are electrically connected to each other through the through holes and the bridges, and the second electronic components The element is coupled to a plurality of first electronic elements adjacent to the second electronic element through a plurality of through holes.

In the embodiment of the present invention, the stress corresponding to the auxiliary region is greater than the stress corresponding to the outside of the auxiliary region.

In the embodiment of the present invention, the amount of strain corresponding to the auxiliary area is greater than 5%, and the amount of strain corresponding to the outside of the auxiliary area is less than 5%.

Continuing from the above, in the stretchable display of the present invention, a plurality of bridges are arranged on the second surface of the substrate, and a plurality of first electronic components are arranged on the first surface of the substrate, so that the bridges and the first electronic components are in different positions. On the flat surface, the wiring space of the display is increased and the tensile strength of the display is improved.

As mentioned above, in the stretchable display of the present invention, a plurality of second electronic components are arranged in the auxiliary area of the second surface, and a plurality of first electronic components are combined to improve the resolution of the display.

The advantages, features, and technical means of achieving the present invention will be more easily understood by being described in more detail with reference to the exemplary embodiments and the accompanying drawings, and the present invention may be implemented in different forms, so it should not be construed as being limited to what is described herein. Rather, the embodiments are provided so that this disclosure will be thorough, complete and complete to convey the scope of the invention to those of ordinary skill in the art, and the invention will only be appended Defined by the scope of the patent application.

It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections You should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer and/or section from another element, component, region, layer and/or section. Thus, "first element", "first feature", "first region", "first layer" and/or "first portion" discussed below may be referred to as "second element", "second feature" , "Second Area", "Second Layer" and/or "Second Section" without departing from the spirit and teachings of the present invention.

Additionally, the terms "comprising" and/or "comprising" refer to the presence of stated features, regions, integers, steps, operations, elements and/or components, but do not exclude one or more other features, regions, integers, steps, operations , elements, components and/or the presence or addition of combinations thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be construed as having definitions consistent with their meanings in the context of the related art and the present invention, and will not be construed as idealized or overly formal meaning, unless expressly defined as such herein.

Please refer to FIG. 1A and FIG. 1B , which are a side view of the first embodiment of the stretchable display of the present invention and a structural diagram of the first embodiment of the stretchable display of the present invention. As shown in FIGS. 1A and 1B, the stretchable display of the present invention includes a substrate 10A, a plurality of first electronic components 20 and a plurality of bridges 30A. For example, the substrate 10A can be a glass substrate, a quartz A substrate, a substrate formed of a polymer resin, the material of the polymer resin may include polyethersulfone (PES), polyacrylate (PA), polyarylate (PAT), polyetherimide ( polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate Ester (polyallylate), polyimide (polyimide, PI), polycarbonate (polycarbonate, PC), cellulose triacetate (cellulose triacetate, CAT or TAC), cellulose acetate propionate (cellulose acetate propionate, CAP) ), or a combination thereof, the substrates of the aforementioned materials can be applied to the stretchable display of the present invention. The substrate 10A has a first surface S1, a second surface S2 and a plurality of through holes TH, the first surface S1 and the second surface S2 are arranged opposite to each other, and the plurality of through holes TH are arranged between the first surface S1 and the second surface S2. A plurality of first electronic components 20 are disposed on the first surface S1. A plurality of bridges 30A are disposed on the second surface S2, each of the first electronic components 20 is coupled to the plurality of bridges 30A through a plurality of through holes TH, and the plurality of bridges 30A receive electrons from one of the plurality of first electronic components 20. The signal is transmitted to the other first electronic component 20 which is coupled.

Wherein, the plurality of first electronic components 20 are separated from each other, that is, the first electronic components 20 are arranged at intervals from each other; the first electronic components 20 may be, for example, pixel units, and of course, the first electronic components 20 may also be stretchable displays other electronic components, but not limited to the scope of the invention. Each bridge 30A has a first end E1 and a second end E2, the first end E1 and the second end E2 are respectively coupled to two adjacent first electronic components 20 through the through holes TH, that is, a plurality of first electronic components The elements 20 are electrically connected to each other through the through holes TH and the bridges 30A to transmit electronic signals to each other; for example, the electronic signals can be display signals or control signals, and of course other types of electronic signals, but not limited to the scope of the present invention.

Please refer to FIG. 2A and FIG. 2B , which are side views of the second embodiment of the stretchable display of the present invention and structural diagrams of the second embodiment of the stretchable display of the present invention. As shown in FIG. 2A and FIG. 2B, the stretchable display of the present invention includes a substrate 10B, a plurality of first electronic components 20 and a plurality of bridge members 30B, and the arrangement relationship is similar to that of the first embodiment, and here The similarities will not be repeated, but there are still differences between the second embodiment of the present invention and the first embodiment. On the first surface S1 , the position of the groove GR projected on the second surface S2 overlaps the position of the bridge 30B, that is, the position of the groove GR corresponds to the position of the bridge 30B. The substrate 10B has a plurality of gaps GAP on the second surface S2 , and the projected positions of the gaps GAP on the first surface S1 are shifted from the positions of the grooves GR, and the gaps GAP and the grooves GR are provided independently of each other.

In one embodiment, the plurality of bridges 30A may include straight wires as shown in FIG. 1B . In another embodiment, the plurality of bridges 30B may include U-shaped wires or wavy wires as shown in FIG. 2B . Of course, the plurality of bridges 30A and 30B may include wires of other shapes according to the actual configuration, and are not limited to the scope of the present invention.

Please refer to FIG. 3 , which is a structural diagram of a third embodiment of the stretchable display of the present invention. As shown in FIG. 3 , the stretchable display of the present invention includes a substrate 10A, a plurality of first electronic components 20 and a plurality of bridge members 30A, and the arrangement relationship is similar to that of the first embodiment, and will not be repeated here. Similarities are described, but there are still differences between the third embodiment of the present invention and the first embodiment. The differences are: the second surface S2 includes the auxiliary area AR, the present invention further includes a second electronic component 40, the second electronic component 40 is arranged in the auxiliary area AR; the first surface S1 includes a plurality of accommodating areas AS, the plurality of accommodating areas AS accommodate a plurality of first electronic components 20, and a single accommodating area AS accommodates a plurality of first electronic components 20, For example, a single accommodating area AS accommodates three first electronic components 20 , and a plurality of bridges 30A are respectively disposed between the first electronic components 20 in different accommodating areas AS. When viewed from the second surface S2 of the substrate 10A in the direction of the first surface S1, the auxiliary area AR partially overlaps the positions of the plurality of first electronic components 20, and the plurality of first electronic components 20 of the plurality of accommodating areas AS are located in the second Around the electronic components 40 , the plurality of first electronic components 20 are respectively coupled to the second electronic components 40 through the through holes TH. For example, four accommodating areas AS accommodate 12 first electronic components 20 , and a single accommodating area AS accommodates 12 first electronic components 20 . In the area AS, one first electronic component 20 is adjacent to the auxiliary area AR (that is, there are 4 adjacent auxiliary areas AR in the 4 accommodating areas AS), and each first electronic component 20 is coupled to the second through the through hole TH Electronic components 40 . In the third embodiment, the first electronic components 20 located in different accommodating areas AS are electrically connected to each other through the through holes TH and the bridges 30A, and the second electronic components 40 are coupled to the adjacent first electronic components through the plurality of through holes TH The plurality of first electronic components 20 of the two electronic components 40; in other words, the first electronic components 20 in the accommodating area AS transmit electronic signals to the second electronic components 40 through the through holes TH, and the second electronic components 40 pass through the other through holes TH. The hole TH transmits the electronic signal to the first electronic component 20 of the other accommodating area AS.

Please refer to FIG. 4 , which is a structural diagram of a fourth embodiment of the stretchable display of the present invention. As shown in FIG. 4, the stretchable display of the present invention includes a substrate 10B, a plurality of first electronic components 20, a plurality of bridges 30B, and a plurality of grooves GR, and the arrangement relationship is similar to that of the second embodiment, The similarities will not be repeated here, but there are still differences between the fourth embodiment of the present invention and the second embodiment. The difference is that the second surface S2 includes an auxiliary area AR, and the present invention further includes a second electronic component 40. The second electronic component 40 is arranged in the auxiliary area AR; a plurality of first electronic components 20 are distributed in a plurality of accommodating areas AS, a single accommodating area AS accommodates many first electronic components 20, and between each accommodating area AS There are grooves GR, and a plurality of bridges 30B are respectively disposed between the first electronic components 20 in the same accommodating area AS. The fourth embodiment is similar to the third embodiment in that: when viewed from the second surface S2 of the substrate 10A to the first surface S1 , the auxiliary area AR partially overlaps with the plurality of first electronic components 20 . position, the plurality of first electronic components 20 are located around the second electronic component 40, the plurality of first electronic components 20 are respectively coupled to the second electronic component 40 through and through holes TH, and the second electronic components 40 and the first electronic component The electrical relationship of 20 and the transmission of electronic signals are similar to those of the third embodiment, and will not be repeated here. On the contrary, the difference between the fourth embodiment and the third embodiment is that the substrate 10B has a plurality of grooves GR on the first surface S1, each groove GR and each bridge 30B are correspondingly arranged, and the substrate 10B is formed on the first surface S1. The two surfaces S2 have a plurality of gaps GAP, and the grooves GR and the gaps GAP are separated from each other. Since the position of each groove GR projected on the second surface S2 is different from the position of each gap GAP, a single groove GR is projected on the second surface. The position of S2 is located between the positions of the two gaps GAP, and the plurality of bridges 30B couple the two first electronic components 20 in different accommodating areas AS to each other, so the positions of the second electronic components 40 are different from The position of each bridge member 30B further determines the position where the second electronic component 40 is disposed on the second surface S2.

Please refer to FIG. 5A and FIG. 5B , which are a side view of the fifth embodiment of the stretchable display of the present invention and a structural diagram of the fifth embodiment of the stretchable display of the present invention. As shown in FIG. 5, the stretchable display of the present invention includes a substrate 10B, a plurality of first electronic components 20, a plurality of bridges 30B, a plurality of grooves GR, a plurality of gaps GAP and an auxiliary area AR, which are The configuration relationship is similar to that of the fourth embodiment, and the similarities will not be repeated here. However, the fifth embodiment of the present invention is still different from the fourth embodiment. The difference is that the number of the second electronic components 40 is: The number of the plurality of second electronic components 40 is smaller than the number of the plurality of first electronic components 20 , the plurality of second electronic components 40 are electrically connected to each other, and the positions of the second electronic components 40 projected on the first surface S1 and The positions of the first electronic components 20 are staggered, that is, the projected positions of the second electronic components 40 on the first surface S1 partially overlap the positions of the first electronic components 20; In order to couple the first electronic element 20 to the second electronic element 40, the positions of the plurality of grooves GR and the plurality of gaps GAP are changed. There is no trench GR between some of the first electronic components 20 below the electronic components 40 , and the first electronic components 20 located below the second electronic components 40 are directly electrically connected to the second electronic components 40 through the through holes TH without bridges 30B. Similarly, each of the second electronic components 40 is coupled to the plurality of first electronic components 20 adjacent to the second electronic components 40 through the through holes TH, so that each of the second electronic components 40 can be actuated according to electronic signals. Of course, the number of the second electronic components 40 is 9 as shown in FIG. 5B, and the number of the first electronic components 20 is 36, but according to the actual configuration of the stretchable display, the number of the first electronic components 20 and the second electronic components 40 The number can be adjusted accordingly and is not limited to the scope of the present invention.

The stress corresponding to the auxiliary area AR is greater than the stress corresponding to outside the auxiliary area AR, the strain corresponding to the auxiliary area AR is greater than 5%, and the strain outside the auxiliary area AR is less than 5%. It should be noted that the amount of strain here is the amount of change in the principal axis of strain of the present invention by applying stress in the horizontal and vertical directions of the present invention, and the amount of strain is the amount of change in the shape of the strain. According to the above, the amount of strain corresponding to the auxiliary area AR is relatively large, and the amount of strain corresponding to the outside of the auxiliary area AR is relatively small. Therefore, when the stretchable display of the present invention is stretched, the adjacent first electronic components 20 are pulled apart from each other. It may cause the resolution of the area where the first electronic component 20 is located to decrease. The first electronic component 20 and the second electronic component 40 should be arranged in the auxiliary area AR, and the first electronic component 20 should be arranged outside the auxiliary area AR. By arranging the first electronic component 20 and the second electronic component 40 in the auxiliary area AR, the problem of resolution reduction is improved; through the aforementioned mechanism, the resolution of the stretchable display of the present invention is significantly increased to meet the current high-resolution requirements. need.

As mentioned above, in the stretchable display of the present invention, a plurality of bridges 30A or 30B are disposed on the second surface S2 of the substrate 10A or 10B, and a plurality of first electronic components 20 are disposed on the first surface of the substrate 10A or 10B S1, the bridge member 30A or 30B and the first electronic component 20 are located on different planes, thereby increasing the wiring space of the display and improving the tensile strength of the display, so that the stretchable display of the present invention can be applied to wearable electronic products , mobile phones and car dashboards.

The above description is exemplary only, not limiting. Any equivalent modifications or changes that do not depart from the spirit and scope of the present invention shall be included in the appended patent application scope.

10A, 10B: Substrate 20: The first electronic component 30A, 30B: Bridge piece 40: Second electronic component AS: accommodation area AR: Auxiliary Area E1: first end E2: second end GAP: Gap GR: groove S1: The first side S2: Second side TH: through hole

FIG. 1A is a side view of a first embodiment of the stretchable display of the present invention. FIG. 1B is a structural diagram of the first embodiment of the stretchable display of the present invention. Figure 2A is a side view of a second embodiment of the stretchable display of the present invention. FIG. 2B is a structural diagram of the second embodiment of the stretchable display of the present invention. FIG. 3 is a structural diagram of a third embodiment of the stretchable display of the present invention. FIG. 4 is a structural diagram of a fourth embodiment of the stretchable display of the present invention. FIG. 5A is a side view of a fifth embodiment of the stretchable display of the present invention. FIG. 5B is a structural diagram of the fifth embodiment of the stretchable display of the present invention.

10A: Substrate

20: The first electronic component

30A: Bridge piece

E1: first end

E2: second end

S1: The first side

S2: Second side

TH: through hole

Claims (10)

A stretchable display comprising: a substrate having a first surface, a second surface and a plurality of through holes, the first surface and the second surface are arranged opposite to each other, and the plurality of through holes are arranged between the first surface and the second surface; a plurality of first electronic components disposed on the first surface; and A plurality of bridging pieces are disposed on the second surface, each of the first electronic components is coupled to the plurality of bridging pieces through the plurality of through holes, and the plurality of bridging pieces receives a The electronic signal is transmitted to the other coupled first electronic element. The stretchable display of claim 1, wherein the plurality of first electronic components are disposed apart from each other. The stretchable display as claimed in claim 1, wherein a plurality of grooves are provided on the first surface of the substrate, and each of the grooves is disposed between each of the first electronic components, and further the grooves are projected The position of the second surface overlaps the position of the bridge. The stretchable display as claimed in claim 1, wherein each bridge member has a first end and a second end, and the first end and the second end are respectively coupled to two adjacent first electronic components . The stretchable display of claim 1, wherein the plurality of bridges comprise U-shaped or wavy wires. The stretchable display of claim 1, wherein the second surface includes an auxiliary area, the stretchable display further includes a plurality of second electronic components, the plurality of second electronic components are disposed in the auxiliary area and mutually Electrical connection. The stretchable display of claim 6, wherein the first surface includes a plurality of accommodating areas, and the plurality of accommodating areas accommodate the plurality of first electronic components. The stretchable display according to claim 7, if the auxiliary area partially overlaps the positions of the plurality of first electronic components, the first electronic components located in different accommodating areas pass through the through hole and the bridge member While being electrically connected to each other, each of the second electronic elements is coupled to a plurality of the first electronic elements adjacent to the second electronic element through the plurality of through holes. The stretchable display as claimed in claim 6, wherein the stress corresponding to the auxiliary region is greater than the stress corresponding to outside the auxiliary region. According to the stretchable display according to claim 6, the amount of strain corresponding to the auxiliary area is greater than 5%, and the amount of strain corresponding to the outside of the auxiliary area is less than 5%.

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