TWI742977B - Stretchable pixel array substrate - Google Patents

Abstract

A stretchable pixel array substrate includes a base and a component layer. The base has first openings and second openings, wherein each of the first openings has a first opening extending direction, each of the second openings has a second opening extending direction, and the first opening extending direction and the second opening extending direction are different. The first openings and the second openings are alternately arranged in a first direction and a second direction to define islands and bridges of the base. The component layer is arranged on the base and includes island portions and bridge portions. The island potions have pixel structures and are respectively arranged on the islands of the base. The bridge portions have conductive wires and are respectively disposed on the bridges of the base, wherein the conductive wires are electrically connected to the pixel structures.

Description

Stretchable pixel array substrate

The present invention relates to a pixel array substrate, and particularly relates to a stretchable pixel array substrate.

With the rapid development of electronic technology, electronic products continue to introduce new ones. In order to enable electronic products to be used in a variety of different fields, the characteristics of stretchability, thinness and unrestricted appearance are gradually being valued. In other words, electronic products are gradually required to have different appearances according to different application methods and application environments, so electronic products need to be stretchable.

However, when the electronic product is stretched, the structure may break due to the stress, and even further cause the internal circuit to break. Therefore, how to make stretchable electronic products have good manufacturing yield and product reliability is an urgent issue to be solved at present.

The invention provides a pixel array substrate, which is not easy to be cracked.

The present invention provides another pixel array substrate, which is not easy to be cracked.

The stretchable pixel array substrate of the present invention includes a base and a component layer. The substrate has a plurality of first openings and a plurality of second openings, wherein each first opening has a first opening extending direction, each second opening has a second opening extending direction, and the first opening extending direction and the second opening extending The direction is different. The plurality of first openings and the plurality of second openings are alternately arranged in the first direction and the second direction to define a plurality of islands and a plurality of bridges of the substrate. The first direction is staggered with the second direction, the first direction is staggered with the extending direction of the first opening, and the second direction is staggered with the extending direction of the second opening. Each first opening has a plurality of opposing first edges and a plurality of opposing second edges, the plurality of first edges are arranged in the first direction, and the plurality of second edges are arranged in the extending direction of the first opening. Each second opening has a plurality of opposing third edges and a plurality of opposing fourth edges, the plurality of third edges are arranged in the second direction, and the plurality of fourth edges are arranged in the extending direction of the second opening. The element layer is arranged on the substrate and includes a plurality of islands and a plurality of bridges. The multiple islands have multiple pixel structures and are respectively disposed on the multiple islands of the base. The plurality of bridges have a plurality of wires and are respectively disposed on the plurality of bridges of the substrate, and the plurality of wires are electrically connected to the plurality of pixel structures. The multiple islands of the base include a first island and a second island, which are arranged in the first direction. The multiple bridges of the base include a first bridge, which connects the first island and the second island. The multiple island portions of the element layer include a first island portion and a second island portion, which are respectively disposed on the first island and the second island of the substrate and each have a first pixel structure and a second pixel structure having multiple pixel structures . The multiple bridge portions of the element layer include a first bridge portion, which is disposed on the first bridge of the substrate and connects the first island portion and the second island portion of the element layer. The first bridge portion of the element layer has a first conductive line of a plurality of conductive lines, and the first conductive line is electrically connected to the first pixel structure and the second pixel structure. The first edge of the first opening of the substrate has a first section defining the first island of the substrate. The first island portion of the element layer has an edge adjacent to the first opening. The first section of the first edge of the first opening and the edge of the first island portion of the element layer have a first distance in the first direction, and the first distance gradually increases as the first bridge approaches the substrate.

Another stretchable pixel array substrate of the present invention includes a base, a component layer, and a plurality of reinforcing structures. The substrate has a plurality of first openings and a plurality of second openings, wherein each first opening has a first opening extending direction, each second opening has a second opening extending direction, and the first opening extending direction and the second opening extending The direction is different. The plurality of first openings and the plurality of second openings are alternately arranged in the first direction and the second direction to define a plurality of islands and a plurality of bridges of the substrate. The first direction is staggered with the second direction, the first direction is staggered with the extending direction of the first opening, and the second direction is staggered with the extending direction of the second opening. Each first opening has a plurality of opposing first edges and a plurality of opposing second edges, the plurality of first edges are arranged in the first direction, and the plurality of second edges are arranged in the extending direction of the first opening. Each second opening has a plurality of opposing third edges and a plurality of opposing fourth edges, the plurality of third edges are arranged in the second direction, and the plurality of fourth edges are arranged in the extending direction of the second opening. The element layer is arranged on the substrate and includes a plurality of islands and a plurality of bridges. The multiple islands have multiple pixel structures and are respectively disposed on the multiple islands of the base. The plurality of bridges have a plurality of wires and are respectively disposed on the plurality of bridges of the substrate, and the plurality of wires are electrically connected to the plurality of pixel structures. A plurality of reinforcing structures are arranged on the plurality of bridges of the base, and are separated from the plurality of bridges of the element layer.

Reference will now be made in detail to the exemplary embodiments of the present invention, and examples of the exemplary embodiments are illustrated in the accompanying drawings. Whenever possible, the same component symbols are used in the drawings and descriptions to indicate the same or similar parts.

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 can be directly on or connected to the other element, or Intermediate elements can also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. As used herein, "connected" can refer to physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" may mean that there are other elements between two elements.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within the acceptable deviation range of the specific value determined by a person of ordinary skill in the art, taking into account the measurement in question and the The specific amount of measurement-related error (ie, the limitation of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, "about", "approximately" or "substantially" as used herein can be based on optical properties, etching properties or other properties to select a more acceptable range of deviation or standard deviation, and not one standard deviation can be applied to all properties .

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 to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

FIG. 1 is a schematic top view of a stretchable pixel array substrate 100 according to an embodiment of the present invention. Please refer to FIG. 1, the stretchable pixel array substrate 100 includes a plurality of repeating units R arranged in an array.

FIG. 2 is an enlarged schematic diagram of a repeating unit R of the stretchable pixel array substrate 100 according to an embodiment of the present invention.

3 is a schematic cross-sectional view of a stretchable pixel array substrate 100 according to an embodiment of the invention.

1, 2 and 3, the stretchable pixel array substrate 100 includes a base 110 for supporting other components of the stretchable pixel array substrate 100. The substrate 110 is elastic and malleable. In other words, the substrate 110 can be stretched. For example, in this embodiment, the material of the substrate 110 may include polyimide (PI), polyethylene naphthalate (PEN), polyethylene terephthalate (polyethylene terephthalate). ; PET), polycarbonate (polycarbonates; PC), polyether sulfone (PES) or polyarylate (polyarylate), other suitable materials or a combination of at least two of the foregoing, but the present invention does not This is limited.

Please refer to FIGS. 1 and 2, the substrate 110 has a plurality of first openings 112 and a plurality of second openings 114. Each first opening 112 has a first opening extension direction E1, each second opening 114 has a second opening extension direction E2, and the first opening extension direction E1 is different from the second opening extension direction E2. For example, in this embodiment, the first opening extension direction E1 and the second opening extension direction E2 can be selectively perpendicular. That is, in the present embodiment, a first opening and a second opening extending in a direction E1 extending direction angle α E2 may be 90 ^o. However, the present invention is not limited to this. In other embodiments, the included angle α between the first opening extension direction E1 and the second opening extension direction E2 may also be other angles ^{greater than 0°} and less than 180 ^°.

1 and 2, the plurality of first openings 112 and the plurality of second openings 114 of the substrate 110 are alternately arranged in the first direction D1 and the second direction D2 to define the plurality of islands 116 and the plurality of islands 116 of the substrate 110 Bridge 118. The first direction D1 is staggered with the second direction D2, the first direction D1 is staggered with the first opening extension direction E1, and the second direction D2 is staggered with the second opening extension direction E2. For example, in this embodiment, the first direction D1 and the second direction D2 can be selectively perpendicular, the first direction D1 and the first opening extension direction E1 can be selectively perpendicular, and the second direction D2 and the second direction D2 can be selectively perpendicular to each other. The opening extension direction E2 can be optionally vertical, but the present invention is not limited to this.

Referring to FIG. 1 and FIG. 2, each first opening 112 has a plurality of opposite first edges 112a and a plurality of opposite second edges 112b. The first edges 112a are arranged in the first direction D1, and the first edges 112a are arranged in the first direction D1. The two edges 112b are arranged in the extending direction E1 of the first opening. Each second opening 114 has a plurality of opposing third edges 114a and a plurality of opposing fourth edges 114b, the plurality of third edges 114a are arranged in the second direction D2, and the plurality of fourth edges 114b are in the second opening Arranged in the extension direction E2.

For example, in this embodiment, the first opening 112 may have a rectangular shape, the first edge 112a of the first opening 112 may be the long side of the rectangular shape, and the second edge 112b of the first opening 112 may be The short side of the rectangle-like. However, the present invention is not limited to this. In other embodiments, the first opening 112 may not be rectangular or rectangular, for example, oval-like or other shapes.

For example, in this embodiment, the second opening 114 may be a rectangular shape, the third edge 114a of the second opening 114 may be the long side of the rectangular shape, and the fourth edge 114b of the second opening 114 may be a rectangular shape. Describe the short side of a rectangle. However, the present invention is not limited to this. In other embodiments, the second opening 114 may not be rectangular or rectangular, for example, oval-like or other shapes.

Referring to FIG. 2, in this embodiment, each bridge 118 of the substrate 110 is defined by a second edge 112b corresponding to a first opening 112 and a third edge 114a corresponding to a second opening 114, or by A first edge 112a corresponding to a first opening 112 and a fourth edge 114b corresponding to a second opening 114 are defined. Specifically, in this embodiment, the plurality of bridges 118 of the substrate 110 includes a plurality of first bridges 118-1 and a plurality of second bridges 118-2, and each first bridge 118-1 is substantially in the first direction. D1 extends upward, each second bridge 118-2 extends substantially in the second direction D2, and each first bridge 118-1 can be formed by the corresponding second edge 112b of the first opening 112 and the corresponding second opening 114 The third edge 114a is defined, and each second bridge 118-2 can be defined by the first edge 112a of the corresponding first opening 112 and the fourth edge 114b of the corresponding second opening 114.

Please refer to FIG. 1, FIG. 2 and FIG. 3, the stretchable pixel array substrate 100 further includes a device layer 120 disposed on the substrate 110. Please refer to FIG. 1 and FIG. 2, the device layer 120 includes a plurality of islands 126. Please refer to FIG. 2, the multiple island portions 126 of the element layer 120 have multiple pixel structures PX and are respectively disposed on the multiple islands 116 of the substrate 110.

Referring to FIG. 2, for example, in this embodiment, an island portion 126 of the device layer 120 may be provided on an island 116 of the substrate 110, and each island portion 126 has at least one pixel structure PX, and each The pixel structure PX includes at least one sub-pixel structure SPX. For example, in this embodiment, an island 126 of the element layer 120 may have a pixel structure PX, and the pixel structure PX may include three sub-pixels for displaying red, blue, and green, respectively. Structure SPX, but the present invention is not limited to this.

4 is a schematic diagram of an equivalent circuit of a sub-pixel structure SPX of the stretchable pixel array substrate 100 according to an embodiment of the present invention.

Please refer to FIG. 2, FIG. 3, and FIG. 4. In this embodiment, each sub-pixel structure SPX may include a first transistor T1 and a pixel electrode PE. The first transistor T1 has a first terminal T1a, The second terminal T1b, the control terminal T1c and the semiconductor pattern T1d. The first terminal T1a and the second terminal T1b are respectively electrically connected to two different regions of the semiconductor pattern T1d. The first insulating layer GI is sandwiched between the control of the first transistor T1 Between the terminal T1c and the semiconductor pattern T1d, the second insulating layer PL is sandwiched between the first transistor T1 and the pixel electrode PE, and the pixel electrode PE is electrically connected to the second insulating layer PL through the contact window PLa of the second insulating layer PL. The second terminal T1b of a transistor T1. In this embodiment, each sub-pixel structure SPX may optionally further include a second transistor T2 (shown in FIG. 4), wherein the second transistor T2 has a first terminal T2a, a second terminal T2b, and The control terminal T2c, and the second terminal T2b of the second transistor T2 is electrically connected to the control terminal T1c of the first transistor T1; but the present invention is not limited to this.

Please refer to FIG. 1 and FIG. 2, the device layer 120 further includes a plurality of bridges 128. Please refer to FIG. 2, the plurality of bridges 128 of the element layer 120 have a plurality of wires L and are respectively disposed on the plurality of bridges 118 of the substrate 110, wherein the plurality of wires L are electrically connected to the plurality of pixel structures PX.

Referring to FIG. 2, in this embodiment, the plurality of bridges 128 of the element layer 120 includes a plurality of first bridges 128-1 and a plurality of second bridges 128-2, and the plurality of first bridges of the element layer 120 The portion 128-1 and the plurality of second bridge portions 128-2 are respectively disposed on the plurality of first bridges 118-1 and the plurality of second bridges 118-2 of the base 110, and each first bridge portion 128-1 is substantially Extending in the first direction D1, each second bridge portion 128-2 substantially extends in the second direction D2, the plurality of wires L includes a plurality of first wires L1 and a plurality of second wires L2, the component layer 120 The plurality of first bridge portions 128-1 have a plurality of first conductive lines L1, and the plurality of second bridge portions 128-2 of the element layer 120 have a plurality of second conductive lines L2.

2 and 4, for example, in this embodiment, the plurality of first conductive lines L1 may include a gate drive line electrically connected to the control terminal T2c of the second transistor T2 of the sub-pixel structure SPX A first common line and a first power line electrically connected to the first terminal T1a of the first transistor T1 of the sub-pixel structure SPX; the plurality of second wires L2 may include electrically connected to the sub-pixel structure SPX The data line of the first terminal T2a of the second transistor T2, the second common line, and the second power line electrically connected to the first terminal T1a of the first transistor T1 of the sub-pixel structure SPX; but the present invention does not Limited by this.

Referring to FIG. 2, in this embodiment, each bridge portion 128 of the element layer 120 is close to the third edge 114a of the corresponding second opening 114 and away from the second edge 112b of the corresponding first opening 112, or close to the corresponding third edge 112b of the first opening 112. The first edge 112 a of an opening 112 is far away from the corresponding fourth edge 114 b of the second opening 114.

For example, in this embodiment, each first bridge 128-1 of the device layer 120 is close to the third edge 114a of the corresponding second opening 114 and away from the second edge 112b of the corresponding first opening 112; Each second bridge portion 128-2 of the layer 120 is close to the first edge 112a of the corresponding first opening 112 and away from the fourth edge 114b of the corresponding second opening 114; that is, in this embodiment, the element layer Each bridge 128 of 120 is defined by a first opening 112 and a second opening 114, and each bridge 128 is close to the long side of one of the first opening 112 and the second opening 114 and away from the first opening 112 and the second opening. The other short side of the opening 114, but the present invention is not limited to this.

Please refer to FIG. 2, it is worth noting that, in this embodiment, the stretchable pixel array substrate 100 further includes a plurality of reinforcing structures 130, which are disposed on the plurality of bridges 118 of the base 110 and overlap with the element layer 120. Two bridges are separated by 128. The reinforcing structure 130 can adjust the position of the neutral axis so that the bridge portion 128 of the element layer 120 bears a compressive strain instead of a tensile strain. Thereby, the risk of disconnection of the wire L of the bridge 128 can be greatly reduced. In addition, since the reinforcement structure 130 is separated from the bridge portion 128 of the element layer 120, even if a crack occurs in the reinforcement structure 130, the crack is not easy to extend to the bridge portion 128 of the element layer 120, causing the wire L to break.

For example, in this embodiment, the reinforcing structure 130 may include an inorganic layer, a metal layer, or a combination thereof, but the invention is not limited thereto.

In this embodiment, a reinforcing structure 130 can selectively electrically connect two adjacent islands 126 of the device layer 120 to transmit a certain type of electronic signal. If the wire L of the component layer 120 adjacent to the reinforcing structure 130 is disconnected, the reinforcing structure 130 can be used as a spare wire, so that the certain electronic signal can still be transmitted smoothly.

Referring to FIG. 2, for example, in this embodiment, the plurality of islands 116 of the substrate 110 includes a first island 116-1 and a second island 116-2 arranged in the first direction D1, and the plurality of islands 116 of the substrate 110 The bridge 118 includes a first bridge 118-1 connecting the first island 116-1 and the second island 116-2, and the multiple island portions 126 of the element layer 120 include a first island portion 126-1 and a second island portion 126-2 , The first island portion 126-1 and the second island portion 126-2 of the element layer 120 are respectively disposed on the first island 116-1 and the second island 116-2 of the substrate 110 and each have a plurality of pixel structures PX The first pixel structure PX1 and the second pixel structure PX2, the plurality of bridges 128 of the element layer 120 includes a first bridge 128-1, and the first bridge 128-1 is disposed on the first bridge 118-1 of the substrate 110 And connect the first island portion 126-1 and the second island portion 126-2 of the element layer 120; the multiple islands 116 of the substrate 110 further include a third island 116-3, the first island 116-1 and the third island 116-3 is arranged in the second direction D2; the multiple island portions 126 of the element layer 120 further include a third island portion 126-3, which is disposed on the third island 116-3 of the substrate 110 and has multiple pixel structures A third pixel structure PX3 of PX; the multiple bridges 118 of the substrate 110 include a second bridge 118-2, which connects the first island 116-1 and the third island 116-3 of the substrate 110; multiple component layers 120 The bridge portion 128 further includes a second bridge portion 128-2, which is disposed on the second bridge 118-2 of the substrate 110 and connects the first island portion 126-1 and the third island portion 126-3 of the device layer 120; the device layer The second bridge portion 128-2 of 120 has a plurality of second conductive lines L2 of conductive lines L, and the second conductive lines L2 are electrically connected to the first pixel structure PX1 and the third pixel structure PX3.

For example, in this embodiment, the first bridge portion 128-1 of the element layer 120 has a first wire L1 of a plurality of wires L, and the first wire L1 is used as a data wire, for example; please refer to FIG. 2 4, the reinforcing structure 130 disposed on the first bridge 118-1 is, for example, a spare data line, which is electrically connected to the first end T2a of the second transistor T2 of the sub-pixel structure SPX of the first pixel structure PX1 and The first end T2a of the second transistor T2 of the child pixel structure SPX of the second pixel structure PX2. If the first wire L1 of the component layer 120 used as a data line is disconnected, the reinforcing structure 130 can function as a spare data line, so that the data signal can still be transmitted smoothly. However, the present invention is not limited to this. In other embodiments, the reinforcing structure 130 provided on the first bridge 118-1 can also be used as a spare wire for transmitting other kinds of electronic signals.

For example, in this embodiment, the second bridge portion 128-2 of the element layer 120 has a second wire L2 of a plurality of wires L, and the second wire L2 is used as a gate driving wire, for example; please refer to 2 and 4, the reinforcement structure 130 disposed on the second bridge 118-2 is, for example, a backup gate drive line, which is electrically connected to the second transistor T2 of the sub-pixel structure SPX of the first pixel structure PX1. The terminal T2c and the control terminal T2c of the second transistor T2 of the sub-pixel structure SPX of the second pixel structure PX2. If the second wire L2 used as the gate drive line of the element layer 120 is disconnected, the reinforcement structure 130 can function as a spare gate drive line, so that the gate drive signal can still be transmitted smoothly. However, the present invention is not limited to this. In other embodiments, the reinforcing structure 130 provided on the second bridge 118-2 can also be used as a spare wire for transmitting other kinds of electronic signals.

Please refer to FIG. 2, in this embodiment, each reinforcing structure 130 can be selectively connected to adjacent two of the island portions 126 of the element layer 120, but the present invention is not limited thereto. In addition, in this embodiment, the reinforcing structure 130 and a second edge 112b of the first opening 112 may have a distance k2 in the second direction D2. For example, the distance k2 can be greater than 3 μm, but the invention is not limited to this.

It must be noted here that the following embodiments use the element numbers and part of the content of the foregoing embodiments, wherein the same numbers are used to represent the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

FIG. 5 is an enlarged schematic diagram of a repeating unit RA of the stretchable pixel array substrate 100A according to an embodiment of the present invention.

Please refer to FIG. 5, those skilled in the art know that the stretchable pixel array substrate 100A can be composed of a plurality of repeating units RA arranged in an array. Shows multiple repeating units RA arranged in an array.

The stretchable pixel array substrate 100A of FIG. 5 is similar to the stretchable pixel array substrate 100 of FIG. The reinforcing structure 130 of the stretchable pixel array substrate 100 in FIG. 2 is different.

Please refer to FIG. 5. Specifically, in this embodiment, each reinforcing structure 130A is disconnected from adjacent two of the island portions 126 of the element layer 120. In this embodiment, any one of the adjacent two of the reinforcing structure 130A and the plurality of island portions 126 of the element layer 120 has a distance k1 in the first direction D1. For example, in this embodiment, the distance k1 may be greater than 3 μm, but the invention is not limited to this.

FIG. 6 is an enlarged schematic diagram of a repeating unit RB of the stretchable pixel array substrate 100B according to an embodiment of the present invention.

Please refer to FIG. 6, those skilled in the art know that the stretchable pixel array substrate 100B may be composed of a plurality of repeating units RB arranged in an array. FIG. 6 only shows one repeating unit RB as a representative, and will not be omitted A number of repeating units RB arranged in an array are shown.

The stretchable pixel array substrate 100B of FIG. 6 is similar to the stretchable pixel array substrate 100A of FIG. The reinforcing structure 130 of the stretchable pixel array substrate 100A shown in FIG. 5 is different. Please refer to FIG. 6. Specifically, in this embodiment, each reinforcing structure 130B may include a plurality of reinforcing patterns 132 separated from each other.

FIG. 7 is a schematic top view of a stretchable pixel array substrate 100C according to an embodiment of the present invention. Please refer to FIG. 7, the stretchable pixel array substrate 100C includes a plurality of repeating units RC arranged in an array.

FIG. 8 is an enlarged schematic diagram of a repeating unit RC of the stretchable pixel array substrate 100C according to an embodiment of the present invention.

FIG. 9 is a schematic cross-sectional view of a stretchable pixel array substrate 100C according to an embodiment of the present invention.

The stretchable pixel array substrate 100C of FIGS. 7 to 9 is similar to the stretchable pixel array substrate 100 of FIGS. 1 to 4, and the difference between the two is: the base of the stretchable pixel array substrate 100C The shape of the area 110 exposed by the element layer 120 is different from the shape of the area where the base 110 of the stretchable pixel array substrate 100 is exposed by the element layer 120. In addition, the stretchable pixel array substrate 100C of FIGS. 7 to 9 may optionally not include the reinforcing structure 130 of the stretchable pixel array substrate 100 of FIGS. 1 to 4.

7 and 8, specifically, in this embodiment, the first edge 112a of the first opening 112 of the substrate 110 has a first segment 112a-1 defining the first island 116-1 of the substrate 110; The first island portion 126-1 of the layer 120 has an edge 126a adjacent to the first opening 112; the first section 112a-1 of the first edge 112a of the first opening 112 and the first island portion 126- of the element layer 120 The edge 126a of 1 has a first distance A1 in the first direction D1.

It is worth noting that the first distance A1 gradually increases as the first bridge 118-1 approaching the base 110. In other words, the first section 112a-1 of the first edge 112a of the first opening 112 and the edge 126a of the first island portion 126-1 of the element layer 120 have an acute angle θ1. Thereby, the tensile stress on the inner side of the first bridge 118-1 (that is, the side close to the first opening 112) can be evenly dispersed, thereby reducing the probability of the wire L disposed on the first bridge 118-1 being broken.

Please refer to FIGS. 8 and 9. It should be noted that the edge 126 a of the device layer 120 refers to the edge of the entire film layer of the device layer 120. For example, in this embodiment, the edge 126a of the element layer 120 may refer to the edge GIb of the first insulating layer GI, the edge PLb of the second insulating layer PL, or a combination thereof, but the invention is not limited thereto.

8, in this embodiment, the first edge 112a of the first opening 112 further includes a second section 112a-2, the second section 112a-2 of the first edge 112a of the first opening 112 and the second opening 114 The fourth edge 114b defines the second bridge 118-2 of the substrate 110; the second section 112a-2 of the first edge 112a of the first opening 112 and the edge 128a of the second bridge 128-2 of the device layer 120 have a second The distance A2, and the first distance A1 is greater than the second distance A2. For example, in this embodiment, the first distance A1 may be greater than 3 μm, and the second distance A2 may be less than 5 μm, but the invention is not limited thereto.

In addition, in this embodiment, the second section 112a-2 of the first edge 112a of the first opening 112 may include a curve; the second edge 112b of the first opening 112 may include a curve; the fourth section of the second opening 114 The edge 114b may include a curve; but the invention is not limited to this. In this embodiment, the wire L and/or the bridge portion 128 can be selectively curved, but the invention is not limited to this.

FIG. 10 is an enlarged schematic diagram of a repeating unit RD of the stretchable pixel array substrate 100D according to an embodiment of the present invention.

Please refer to FIG. 10, those skilled in the art know that the stretchable pixel array substrate 100D can be composed of a plurality of repeating units RD arranged in an array. FIG. 10 only shows one repeating unit RD as a representative, and will not be omitted here. A number of repeating units RD arranged in an array are shown.

The stretchable pixel array substrate 100D of this embodiment is similar to the aforementioned stretchable pixel array substrate 100C. The difference between the two is: in the embodiment of FIG. 10, the wire L and/or the bridge 128 can be Selectively in a straight line.

FIG. 11 is an enlarged schematic diagram of a repeating unit RE of the stretchable pixel array substrate 100E according to an embodiment of the present invention.

Please refer to FIG. 11, those skilled in the art know that the stretchable pixel array substrate 100E can be composed of multiple repeating units RE arranged in an array. FIG. 11 only shows one repeating unit RE as a representative, and will not be omitted here. Shows multiple repeating units RE arranged in an array.

The stretchable pixel array substrate 100E of this embodiment is similar to the aforementioned stretchable pixel array substrate 100C. The difference between the two is: in the embodiment of FIG. 11, the stretchable pixel array substrate 100E It also includes a reinforcing structure 130B.

100, 100A, 100B, 100C, 100D, 100E: stretchable pixel array substrate 110: Base 112: The first opening 112a: first edge 112a-1: first paragraph 112a-2: second paragraph 112b: second edge 114: second opening 114a: third edge 114b: Fourth edge 116: Island 116-1: First Island 116-2: Second Island 116-3: Third Island 118: Bridge 118-1: First Bridge 118-2: Second Bridge 120: component layer 126: Island 126a, 128a: edge 126-1: First Island 126-2: The Second Island 126-3: Third Island 128: Bridge 128-1: The first bridge 128-2: The second bridge 130, 130A, 130B: reinforced structure 132: Strengthening pattern A1: The first distance A2: Second distance D1: First direction D2: second direction E1: Extension direction of the first opening E2: Extension direction of the second opening PX: Pixel structure PX1: The first pixel structure PX2: Second pixel structure PX3: The third pixel structure GI: first insulating layer GIb, PLb: Edge k1, k2: distance L: Wire L1: first wire L2: second wire PE: pixel electrode PL: second insulating layer PLa: contact window R, RA, RB, RC, RD, RE: repeating unit SPX: Sub-pixel structure T1: The first transistor T1a, T2a: first end T1b, T2b: second end T1c, T2c: control terminal T1d: semiconductor pattern T2: second transistor α: included angle θ1: acute angle

FIG. 1 is a schematic top view of a stretchable pixel array substrate 100 according to an embodiment of the present invention. FIG. 2 is an enlarged schematic diagram of a repeating unit R of the stretchable pixel array substrate 100 according to an embodiment of the present invention. 3 is a schematic cross-sectional view of a stretchable pixel array substrate 100 according to an embodiment of the invention. 4 is a schematic diagram of an equivalent circuit of a sub-pixel structure SPX of the stretchable pixel array substrate 100 according to an embodiment of the present invention. FIG. 5 is an enlarged schematic diagram of a repeating unit RA of the stretchable pixel array substrate 100A according to an embodiment of the present invention. FIG. 6 is an enlarged schematic diagram of a repeating unit RB of the stretchable pixel array substrate 100B according to an embodiment of the present invention. FIG. 7 is a schematic top view of a stretchable pixel array substrate 100C according to an embodiment of the present invention. FIG. 8 is an enlarged schematic diagram of a repeating unit RC of the stretchable pixel array substrate 100C according to an embodiment of the present invention. FIG. 9 is a schematic cross-sectional view of a stretchable pixel array substrate 100C according to an embodiment of the present invention. FIG. 10 is an enlarged schematic diagram of a repeating unit RD of the stretchable pixel array substrate 100D according to an embodiment of the present invention. FIG. 11 is an enlarged schematic diagram of a repeating unit RE of the stretchable pixel array substrate 100E according to an embodiment of the present invention.

100: Stretchable pixel array substrate

110: Base

112: The first opening

112a: first edge

112b: second edge

114: second opening

114a: third edge

114b: Fourth edge

116: Island

116-1: First Island

116-2: Second Island

116-3: Third Island

118: Bridge

118-1: First Bridge

118-2: Second Bridge

120: component layer

126: Island

126-1: First Island

126-2: The Second Island

126-3: The Second Island

128: Bridge

128-1: The first bridge

128-2: The second bridge

130: Strengthen the structure

D1: First direction

D2: second direction

E1: Extension direction of the first opening

E2: Extension direction of the second opening

PX: Pixel structure

PX1: The first pixel structure

PX2: Second pixel structure

PX3: The third pixel structure

k2: distance

L: Wire

L1: first wire

L2: second wire

R: repeating unit

SPX: Sub-pixel structure

α: included angle

Claims (18)

A stretchable pixel array substrate includes: A substrate having a plurality of first openings and a plurality of second openings, wherein each first opening has a first opening extending direction, each second opening has a second opening extending direction, and the first opening extending direction The extension direction of the second opening is different; the first openings and the second openings are alternately arranged in a first direction and a second direction to define a plurality of islands and a plurality of bridges of the substrate; the first The direction is staggered with the second direction, the first direction is staggered with the extending direction of the first opening, and the second direction is staggered with the extending direction of the second opening; each of the first openings has a plurality of opposite first edges and Opposing a plurality of second edges, the first edges are arranged in the first direction, and the second edges are arranged in the extending direction of the first opening; each of the second openings has a plurality of opposite third edges. An edge and a plurality of opposite fourth edges, the third edges are arranged in the second direction, and the fourth edges are arranged in the extending direction of the second opening; and A component layer is disposed on the substrate and includes: A plurality of islands having a plurality of pixel structures and respectively disposed on the islands of the base; and A plurality of bridges have a plurality of wires, and are respectively disposed on the bridges of the substrate, wherein the wires are electrically connected to the pixel structures; The islands of the base include a first island and a second island, which are arranged in the first direction; The bridges of the base include a first bridge connecting the first island and the second island; The islands of the element layer include a first island and a second island, which are respectively disposed on the first island and the second island of the substrate, and each have a first picture with the pixel structures Pixel structure and a second pixel structure; The bridge portions of the device layer include a first bridge portion, which is disposed on the first bridge portion of the substrate and connects the first island portion and the second island portion of the device layer; the first bridge portion of the device layer A bridge portion has a first wire of the wires, and the first wire is electrically connected to the first pixel structure and the second pixel structure; A first edge of a first opening of the substrate has a first section defining the first island of the substrate; The first island portion of the element layer has an edge adjacent to the first opening; The first section of the first edge of the first opening and the edge of the first island portion of the element layer have a first distance in the first direction, and the first distance increases as it approaches the substrate The first bridge gradually increases. The stretchable pixel array substrate according to claim 1, wherein the edge of the first section of the element layer of the first island of the first edge of the first opening has an acute angle θ1. The stretchable pixel array substrate according to claim 1, wherein the first distance is greater than 3 μm. The stretchable pixel array substrate according to claim 1, wherein the islands of the base further include a third island, and the first island and the third island are arranged in the second direction; the element layer The islands further include a third island, and a third pixel structure having the pixel structures is disposed on the third island of the substrate; the bridges of the substrate include a second bridge, Connecting the first island and the third island of the substrate; the bridge portions of the element layer further include a second bridge portion disposed on the second bridge of the substrate and connected to the first island portion of the element layer And the third island portion; the second bridge portion of the device layer has a second wire of the wires, and the second wire is electrically connected to the first pixel structure and the third pixel structure; the first The first edge of the opening further includes a second section, and the second section of the first edge of the first opening and a fourth edge of a second opening define the second bridge of the substrate; the first opening The second section of the first edge and an edge of the second bridge portion of the element layer have a second distance, and the first distance is greater than the second distance. The stretchable pixel array substrate according to claim 4, wherein the second distance is less than 5 μm. The stretchable pixel array substrate according to claim 4, wherein the second section of the first edge of the first opening includes a curve. The stretchable pixel array substrate according to claim 1, wherein a second edge of the first opening includes a curve. The stretchable pixel array substrate according to claim 1, wherein a fourth edge of a second opening includes a curve. The stretchable pixel array substrate according to claim 1, wherein one of the wires is a straight line or a curve. The stretchable pixel array substrate according to claim 1, wherein each bridge of the substrate is defined by a second edge corresponding to a first opening and a third edge corresponding to a second opening, or Defined by a first edge corresponding to a first opening and a fourth edge corresponding to a second opening; Each bridge of the element layer is close to the third edge of the corresponding second opening and away from the second edge of the corresponding first opening, or close to the first edge of the corresponding first opening and away from the corresponding one The fourth edge of the second opening; The pixel array substrate further includes a plurality of reinforcing structures disposed on the bridges of the base and separated from the bridges of the element layer. A stretchable pixel array substrate includes: A substrate having a plurality of first openings and a plurality of second openings, wherein each first opening has a first opening extending direction, each second opening has a second opening extending direction, and the first opening extending direction The extension direction of the second opening is different; the first openings and the second openings are alternately arranged in a first direction and a second direction to define a plurality of islands and a plurality of bridges of the substrate; the first The direction is staggered with the second direction, the first direction is staggered with the extending direction of the first opening, and the second direction is staggered with the extending direction of the second opening; each of the first openings has a plurality of opposite first edges and Opposing a plurality of second edges, the first edges are arranged in the first direction, and the second edges are arranged in the extending direction of the first opening; each of the second openings has a plurality of opposite third edges. An edge and a plurality of opposite fourth edges, the third edges are arranged in the second direction, and the fourth edges are arranged in the extending direction of the second opening; A component layer is disposed on the substrate and includes: A plurality of islands having a plurality of pixel structures and respectively disposed on the islands of the base; and A plurality of bridges having a plurality of wires and respectively disposed on the bridges of the substrate, wherein the wires are electrically connected to the pixel structures; and A plurality of reinforcing structures are arranged on the bridges of the base and separated from the bridges of the element layer. The stretchable pixel array substrate according to claim 11, wherein each reinforcing structure is connected to adjacent two of the island portions of the element layer. The stretchable pixel array substrate according to claim 11, wherein each reinforcing structure is disconnected from adjacent two of the island portions of the element layer. The stretchable pixel array substrate according to claim 11, wherein each reinforcing structure includes a plurality of reinforcing patterns separated from each other. The stretchable pixel array substrate according to claim 11, wherein a distance in the first direction between a reinforcing structure and any one of the adjacent island portions of the element layer is greater than 3 μm. The stretchable pixel array substrate according to claim 11, wherein a distance in the second direction between a reinforcing structure and a second edge of the first opening is greater than 3 μm. In the stretchable pixel array substrate according to claim 11, a reinforcing structure is electrically connected to adjacent two of the island portions of the device layer. The stretchable pixel array substrate according to claim 11, wherein a reinforcing structure includes an inorganic layer, a metal layer, or a combination thereof.

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