Patent Publication Number: US-11659666-B2

Title: Display device

Description:
BACKGROUND OF THE DISCLOSURE 
     1. Field of the Disclosure 
     The present disclosure relates to a display device. More particularly, the present disclosure relates to a display device in a wraparound form. 
     2. Description of the Prior Art 
     In order to meet the needs for various functions or improve user convenience, a display device having a surrounding display surface has gradually attracted attention in the technology field. 
     SUMMARY OF THE DISCLOSURE 
     One aspect of the present disclosure is to provide an electronic device, more particularly, a display device in a wraparound form, which may provide various user interfaces on a surface surrounding over 270 degrees. 
     In one embodiment of the present disclosure, a display device is disclosed. The display device includes a display panel, wherein the display panel is in a wraparound form and comprises two wraparound edges opposite to each other and two non-wraparound edges opposite to each other. The display device further includes a flexible circuit board having a surface and a bonding region at a periphery of the surface, wherein the flexible circuit board is electrically bonded to one of the two non-wraparound edges through the bonding region for driving the display panel. 
     In another embodiment of the present disclosure, a display device is disclosed. The display device includes a display panel, wherein the display panel is in a wraparound form and comprises two wraparound edges opposite to each other and two non-wraparound edges opposite to each other. The display device further includes a flexible circuit board having a surface and a bonding region at a periphery of the surface, wherein the flexible circuit board is electrically bonded to one of the two wraparound edges through the bonding region for driving the display panel. 
     These and other objectives of the present disclosure will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the embodiment that is illustrated in the various figures and drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings are included to provide a further understanding of the embodiments, and are incorporated in and constitute a part of this specification. For ease of understanding, same reference numerals are used to indicate the same elements in the drawings. It should be understood that the elements disclosed in one embodiment may be used in other embodiments without specific description. The drawings in this disclosure are not drawn to scale unless being specifically specified. For clarity of presentation, the drawings are simplified and some details or elements are omitted. 
         FIG.  1 A  is a schematic diagram showing the structure of a display device according to an embodiment of the disclosure. 
         FIG.  1 B  is a schematic diagram showing the structure of a display device according to an embodiment of the disclosure. The upper-left portion of  FIG.  1 B  shows a schematic plan view of a display panel and a flexible circuit board of a display device in a non-wraparound form. The lower-right portion of  FIG.  1 B  is a schematic cross-sectional view of the display device along the line A-A′ in the plan view. 
         FIG.  2 A  is a schematic diagram showing the structure of a display device according to an embodiment of the disclosure. 
         FIG.  2 B  is a schematic plan view showing a display panel and a flexible circuit board of a display device in a non-wraparound form according to an embodiment of the disclosure. 
         FIG.  3 A ,  FIG.  3 B ,  FIG.  3 C  and  FIG.  3 D  are schematic plan views respectively showing a display panel and a flexible circuit board of a display device according to some embodiments of the disclosure. 
         FIG.  4   ,  FIG.  5    and  FIG.  6    are schematic diagrams respectively showing a structure of a display device according to some embodiments of the disclosure. 
         FIG.  7 A  is a schematic diagram showing the structure of a display device according to an embodiment of the disclosure. 
         FIG.  7 B  is a schematic plan view showing a display panel and a flexible circuit board of a display device in a non-wraparound form according to an embodiment of the disclosure. 
         FIG.  8 A ,  FIG.  8 B  and  FIG.  8 C  are schematic plan views respectively showing a display panel and a flexible circuit board of a display device according to some embodiments of the disclosure. 
         FIG.  9    is a schematic diagram showing the structure of a display device according to an embodiment of the disclosure. 
         FIG.  10    is a schematic diagram showing the structure of a display device according to an embodiment of the disclosure. 
         FIG.  11    is a schematic diagram showing a display panel and a flexible circuit board of a display device in a non-wraparound form according to an embodiment of the disclosure. 
         FIG.  12    is a flow chart showing the steps of wrapping a display panel according to an embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure may be understood by reference to the following detailed description, taken in conjunction with the drawings as described below. It is noted that, for purposes of illustrative clarity and being easily understood by the readers, various drawings of this disclosure show a portion of the electronic device, and certain components in various drawings may not be drawn to scale. In addition, the number and dimension of each component shown in drawings are only illustrative and are not intended to limit the scope of the present disclosure. 
     Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will understand, electronic equipment manufacturers may refer to a component by different names. This document does not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms “include”, “comprise” and “have” are used in an open-ended fashion, and thus should be interpreted to mean “include, but not limited to . . . ”. It will be understood that when a component is referred to as being “connected to” another component (or its variant), it may be directly connected to the “another component”, or connected to the “another component” through one or more intervening components. 
     It will be understood that when an element or layer is referred to as being “on” or “connected to” another element or layer, it may be directly on or directly connected to the other element or layer, or intervening elements or layers may be presented. In contrast, when an element is referred to as being “directly on” or “directly connected to” another element or layer, there are no intervening elements or layers presented. 
     The term “substantially” usually means falling within 20% of a given value or range, or within 10%, 5%, 3%, 2%, 1%, or 0.5% of a given value or range. 
     Although the terms such as first, second, etc., may be used in the description and following claims to describe various components in claims, these terms does not mean or represent the claimed components have order and does not represent the order of one claimed component and another one claimed component, or the sequence in manufacturing method. These terms are used to discriminate a claimed component with a denomination from another one claimed component with the same denomination. 
     The term “wraparound” used in this disclosure refers to wrap around an axis with an angle greater than or equal to 270 degrees. The term “wraparound surface” used in this disclosure refers to a surface in a wraparound form with a wrapping angle greater than or equal to 270 degrees around an axis to provide various user interfaces. In other words, it is not necessary for a wraparound surface to have a complete 360-degree wrapping angle when in a wraparound form, as long as the wrapping angle is greater than or equal to 270 degrees. 
     It should be noted that the technical features in different embodiments described in the following description may be replaced, recombined, or mixed with one another to constitute another embodiment without departing from the spirit of the present disclosure. 
     The electronic device provided in the present disclosure may include, for example, an antenna or a display device, but is not limited thereto. Embodiments of the display device of the present disclosure may include any display device that displays images or pictures, such as a non-self-light-emitting liquid crystal display (LCD), a light emitting diode (LED) display, or an electro-phoretic display (EPD), but is not limited thereto. The light emitting diode display may include organic light emitting diode (OLED) display, inorganic light emitting diode (LED) display, sub-millimeter light emitting diode (mini LED) display, micro light emitting diode (micro LED) display, quantum dot LED (QLED) display, but is not limited thereto. In the following description, embodiments in which the electronic device is a display device are illustrated. In other embodiments, the electronic device may be an antenna or other types of electronic devices, and the display panel of the electronic device may be replaced with a working panel. 
     The display device of the present disclosure includes a flexible display panel. The term “flexible” means that the display panel may be bent, warp, folded, stretched, flexed, or may be subjected to other deformation operations. The display device of the present disclosure may be bent to have a wraparound form to provide various user interfaces on a wrapping surface surrounding over 270 degrees. For example, display device of the present disclosure may display images, provide touch function or sense function on a surface surrounding over 270 degrees, but is not limited thereto. It should be noted that the display panel (or working panel) of the electronic device in a wraparound form provided by the present disclosure does not necessarily have to surround 360 degrees. The display panel (or working panel) of the electronic device in a wraparound form may surround greater than or equal to 270 degrees to achieve the wraparound user interfaces. Furthermore, the wraparound shape of the display panel provided by the present disclosure may be any shapes according to product needs. For example, the display panel may have a wraparound shape of rectangular cylinder, cylinder, elliptical cylinder, triangular cylinder, or polygonal cylinder, but is not limited thereto. In practice, the different portions of the display panel (or working panel) of the electronic device may respectively be planar or curved, but is not limited thereto. 
     Please refer to  FIG.  1 A  and  FIG.  1 B .  FIG.  1 A  is a schematic diagram showing a structure of a display panel  100  and a flexible circuit board  130  of the display device  10  according to an embodiment of the disclosure. The upper-left portion of  FIG.  1 B  shows a schematic plan view of the display panel  100  and the flexible circuit board  130  of the display device  10  in a non-wraparound form. The lower-right portion of  FIG.  1 B  is a schematic cross-sectional view of the display device  10  along the line A-A′ in the plan view. 
     As shown in  FIG.  1 A , the display device  10  includes the display panel  100 . The display panel  100  may be a flexible display panel. The display panel  100  may include a display surface TS, a back surface BS opposite to the display surface TS, two wraparound edges  102  opposite to each other and two non-wraparound edges  104  opposite to each other. The two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface BS. Please refer to  FIG.  1 B . As shown in  FIG.  1 B , one of the two wraparound edges  102  may include an edge between point A and point B, an edge between point B and point C, an edge between point C and point D, an edge between point D and point E, and an edge between point E and point F. The other one of the two wraparound edges  102  may include an edge between point G and point I, an edge between point I and point J, an edge between point J and point K, an edge between point K and point L, and an edge between point L and point H. The two non-wraparound edges  104  may respectively include the edge between point G and point F and the edge between point H and point A. For the ease of understanding, point A, point B, point C, point D, point E, point F, point G, point H, point I, point J, point K and point L of the display panel  100  are also annotated in  FIG.  1 A . According to some embodiments of the present disclosure, the display surface TS may include a display region (not shown) that may display images or provide touch functions. According to another embodiment of the present disclosure, optionally, the display surface TS may include a peripheral region (not shown). The area of the display region may be smaller than or equal to the area of the display surface TS. When the area of the display region is equal to the area of the display surface TS, the display surface TS may be a borderless embodiment. The peripheral region may include peripheral circuit components, such as driving components, reset components, compensation components, initialization components, operation control components, light emitting control components, capacitors, inductors, power lines, or a combination thereof, but are not limited thereto. In some embodiments, a portion of the peripheral region may be used for bonding the flexible circuit board  130 . The display panel  100  of the display device  10  is bent in such a way that the wraparound edges  102  surround the surrounding axis AX to make the display surface TS of the display panel  100  face toward the outside of the display device  10 . The back surface BS of the display panel  100  faces toward the inside of the display device  10  and encompasses the internal space  110  of the display device  10 . The internal space  110  may be used to accommodate other components of the display device  10 , such as a battery or a control board (not shown). A supporting layer (not shown) may be provided on the back surface BS of the display panel  100  to provide structural support and maintain the shape of the display device  10 . 
     According to some embodiments of the present disclosure, the wraparound edges  102  of the display panel  100  surround the surrounding axis AX by at least 270 degrees, so that the display device  10  may provide various user interfaces on the surface surrounding at least 270 degrees. For example, the display device  10  may display a continuous image or a plurality of non-continuous images on the surface surrounding at least 270 degrees. According to some embodiments of the present disclosure, the wraparound surface may be divided into multiple different application regions. The display panel  100  may be divided into several portions according to different bending angles when the display panel  100  is in the wraparound form. For example, the display panel  100  in the wraparound form may include two long-extending portions opposite to each other and two short-extending portions between the two long-extending portions. One of the two long-extending portions refers to a portion that is approximately planar or has a bending angle (that is, larger bending radius) smaller than that of one of the two short-extending portions, and one of the two short-extending portions refers to a portion that is substantially curved or has a bending angle (that is, smaller bending radius) larger than that of one of the two long-extending portions. 
     For example, as shown in  FIG.  1 B , the display panel  100  may be divided into a long-extending portion L 1 , a long-extending portion L 2  that includes a long-extending portion L 2 - 1  and a long-extending portion L 2 - 2 , a short-extending portion S 1  between the long-extending portion L 1  and the long-extending portion L 2 - 1 , and a short-extending portion S 2  between the long-extending portion L 1  and the long-extending portion L 2 - 2 . The two non-wraparound edges  104  of the display panel  100  are the edges of the long-extending portion L 2 - 2  and the long-extending portion L 2 - 2 , respectively 
     When the display panel  100  is in the wraparound form as shown in  FIG.  1 A , the display surface TS(L 1 ) of the long-extending portion L 1  faces toward the outside, the back surface BS(L 1 ) of the long-extending portion L 1  faces toward the inside, and the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  bend toward the back surface BS(L 1 ) of the long-extending portion L 1 . The display surface TS(L 1 ) of the long-extending portion L 1  corresponds to the front display region of the display device  10 . According to an embodiment of the present disclosure, the display surface TS(L 1 ) of the long-extending portion L 1  may be a planar display region substantially parallel to the XY plane. According to another embodiment of the present disclosure, the display surface TS(L 1 ) of the long-extending portion L 1  may be a curved display region having a small bending angle. The display surface TS(L 2 - 1 ) of the long-extending portion L 2 - 1  and the display surface TS(L 2 - 2 ) of the long-extending portion L 2 - 2  correspond to the rear display region of the display device  10 . According to an embodiment of the present disclosure, the display surface TS(L 2 - 1 ) and the display surface TS(L 2 - 2 ) may respectively be a planar display region substantially parallel to the XY plane. According to another embodiment of the present disclosure, the display surface TS(L 2 - 1 ) and the display surface TS(L 2 - 2 ) may respectively be a curved display region having a small bending angle. The display surface TS(S 1 ) of the short-extending portion S 1  and the display surface TS(S 2 ) of the short-extending portion S 2  approximately correspond to the side display regions of the display device  10 , and may respectively be a curved side display region having a larger bending angle. In this embodiment, in the bent display panel  100 , the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  do not overlap with each other, forming a gap between the two non-wraparound edges  104 . 
     According to some embodiments of the present disclosure, the flexible circuit board  130  may be attached to one of two long-extending portions through at least a portion of a surface of the flexible circuit board  130 . For example, please refer to the upper-left portion of  FIG.  1 B , the portion of the surface of the flexible circuit board  130  is connected to the non-wraparound edge  104  of the long-extending portion L 2 . The flexible circuit board  130  may include a circuit component IC disposed thereon to control the operations of the display units (not shown) of the display panel  100  to display images. The circuit component IC may include a driving component, a reset component, a compensation component, an initialization component, an operation control component, a light emitting control component, a capacitor, an inductor, a power line, or a combination thereof, but is not limited thereto. It is advantageous to dispose the circuit component IC on the flexible circuit board  130  instead of on the display panel  100 , such that the overall area of the peripheral region of the display panel  100  may be reduced to achieve an approximately borderless display effect. 
     Please refer to the lower-right portion of  FIG.  1 B , which is a schematic cross-sectional view of the display device  10  along the line A-A′ in the plan view shown in the upper-left portion of  FIG.  1 B . The flexible circuit board  130  may have a surface  132 , a surface  134  that is opposite to the surface  132 , and a bonding region  136 . The bonding region  136  is formed at a periphery of the surface  132 . It should be noted that the “periphery” of the surface  132  refers to any one of the four edges of the surface  132 . According to this embodiment, the flexible circuit board  130  partially overlaps the non-wraparound edge  104  of the long-extending portion L 2 - 1  of the display panel  100 . In other words, on the Z direction, a portion of the surface  132  of the flexible circuit board  130  overlaps a portion of the long-extending portion L 2 - 1  near the non-wraparound edge  104 . The flexible circuit board  130  may be include wires or signal lines which are electrically bonded to one of the two non-wraparound edges  104  through the bonding region  136  thereof for driving the display panel  100 . As shown in the embodiment shown in the upper-left portion of  FIG.  1 B , the edge between the point G and the point F and the edge between the point H and the point A are the two non-wraparound edges  104 . The bonding region  136  of the flexible circuit board  130  is electrically bonded to the edge between the point G and the point F to drive the display panel  100 . In some embodiments, the flexible circuit board  130  and the display panel  100  may be connected through an anisotropic conductive film (ACF), but it is not limited thereto. 
     When the display panel  100  is in the wraparound form, the flexible circuit board  130  may be bent to extend into the internal space  110 . Please refer to  FIG.  1 A  and  FIG.  1 B , when the circuit component IC is disposed on the surface  134  of the flexible circuit board  130 , the flexible circuit board  130  may be bent from the display surface TS(L 2 - 1 ) of the long-extending portion L 2 - 1 , through the space between the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2 , and toward the back surface BS(L 2 - 1 ) long-extending portion L 2 - 1 . The flexible circuit board  130  is bent to be close to the back surface BS(L 2 - 1 ) long-extending portion L 2 - 1 , such that a larger portion of the internal space  110  may be reserved to accommodate other components of the display device  10  (such as a battery and/or a control board). A higher utilization rate of the internal space  110  may be achieved, which is beneficial for thinning the display device  10 . After the surface  134  of the bent flexible circuit board  130  faces the back surface BS(L 1 ) of the long-extending portion L 1 , so that the circuit component IC disposed on the surface  134  may be exposed in the internal space  110 , which is beneficial for heat dissipation of the circuit component IC. According to some embodiments of the present disclosure, the flexible circuit board  130  may be fixed on the back surface BS(L 2 - 1 ) of the long-extending portion L 2 - 1  through an adhesive layer, but it is not limited thereto. 
     Please refer to  FIG.  2 A  and  FIG.  2 B .  FIG.  2 A  is a schematic diagram showing the structure of a display device  10  according to an embodiment of the disclosure. The display device  10  shown in  FIG.  2 A  includes a display panel  100  in a wraparound form.  FIG.  2 B  is a schematic plan view showing the display panel  100  in a non-wraparound form and a flexible circuit board  130  electrically bonded to an edge of the display panel  100 . The difference between the embodiment shown in  FIG.  1 A  and  FIG.  1 B  and the embodiment shown in  FIG.  2 A  and  FIG.  2 B  includes that, the display panel  100  shown in  FIG.  2 A  and  FIG.  2 B  includes a side-extending portion S 3  and a side-extending portion S 4  respectively disposed at the two wraparound edges  102  of the display panel  100 . For example, the side-extending portion S 3  and side-extending portion S 4  may be respectively disposed at the two wraparound edges  102  of the long-extending portion L 1 . When the display panel  100  is in the wraparound form as shown in  FIG.  2 A , the side-extending portion S 3  and side-extending portion S 4  may respectively be bent toward the back surface (not shown) of the long-extending portion L 1 . According to some embodiments of the present disclosure, the side-extending portion S 3  and the side-extending portion S 4  correspond to the two assistant side display regions of the display device  10 . 
     According to some embodiments of the present disclosure, the bent regions of the display panel  100  of the display device  10  and the position of the flexible circuit board  130  bonded to the display panel  100  may be adjusted according to design needs. Please refer to  FIG.  3 A ,  FIG.  3 B ,  FIG.  3 C  and  FIG.  3 D , which are schematic plan views respectively showing a display panel  100  of a display device and a flexible circuit board  130  bonded to the display panel  100  according to some embodiments of the disclosure. 
     In the embodiment shown in  FIG.  3 A , the display panel  100  may include a display surface TS, a back surface (not shown) that is opposite to the display surface TS, and two wraparound edges  102  and two non-wraparound edges  104 , wherein the two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface. The difference between the display panel  100  shown in  FIG.  3 A  and the display panel  100  shown in  FIG.  1 B  includes that, the two non-wraparound edges  104  of the display panel  100  shown in  FIG.  3 A  are respectively the edges of the short-extending portion S 1  and the long-extending portion L 2  of the display panel  100 , and the flexible circuit board  130  is electrically bonded to one of the non-wraparound edges  104  of the long-extending portion L 2 . When the display panel  100  is in a wraparound form, the display surface TS(L 1 ) of the long-extending portion L 1  faces toward outside, the back surface (not shown) of the long-extending portion L 1  faces toward inside, and the long-extending portion L 2  is bent toward the back surface (not shown) of the long-extending portion L 1 . In other words, when the display panel  100  is in the wraparound form, the back surface (not shown) of the long-extending portion L 2  is closer to the back surface (not shown) of the long-extending portion L 1  than the display surface TS(L 2 ) of the long-extending portion L 2 . The short-extending portion S 1  is also bent toward the back surface (not shown) of the long-extending portion L 1  to encompass the internal space (such as the internal space  110  shown in  FIG.  1 A ) of the display device  10 . The flexible circuit board  130  may be bent through a space between the long-extending portion L 2  and the short-extending portion S 1  and extend into the internal space. 
     In the embodiment shown in  FIG.  3 B , different from  FIG.  3 A , the display panel  100  may further include side-extending portion S 3  and side-extending portion S 4  respectively disposed at two wraparound edges  102  of the display panel  100 . For example, the side-extending portion S 3  and side-extending portion S 4  may be respectively disposed at the two wraparound edges  102  of the long-extending portion L 2 . When the display panel  100  is in the wraparound form, the side-extending portion S 3  and side-extending portion S 4  may respectively be bent toward the back surface (not shown) of the long-extending portion L 2 . According to some embodiments of the present disclosure, the side-extending portion S 3  and the side-extending portion S 4  correspond to the two assistant side display regions. 
     In the embodiment shown in  FIG.  3 C , the display panel  100  includes a display surface TS, a back surface (not shown) that is opposite to the display surface TS, two wraparound edges  102  and two non-wraparound edges  104 , wherein the two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface together. The difference between the display panel  100  shown in  FIG.  3 C  and the display panel  100  shown in  FIG.  1 B  includes that, the two non-wraparound edges  104  of the display panel  100  shown in  FIG.  3 C  are respectively the edges of the short-extending portion S 1  and the long-extending portion L 2  of the display panel  100 , and the flexible circuit board  130  is bonded to the non-wraparound edge  104  of the short-extending portion S 1 . When the display panel  100  is in a wraparound form, the long-extending portion L 2  is bent toward the back surface (not shown) of the long-extending portion L 1 . The short-extending portion S 1  is also bent toward the back surface (not shown) of the long-extending portion L 1  to encompass the internal space (such as the internal space  110  shown in  FIG.  1 A ) of the display device  10 . The flexible circuit board  130  may be bent through a space between the long-extending portion L 2  and the short-extending portion S 1  and extend into the internal space. 
     In the embodiment shown in  FIG.  3 D , different from  FIG.  3 C , the display panel  100  may further include side-extending portion S 3  and side-extending portion S 4  respectively disposed at two wraparound edges  102  of the display panel  100 . For example, the side-extending portion S 3  and side-extending portion S 4  may be respectively disposed at the two wraparound edges  102  of the long-extending portion L 2 . When the display panel  100  is in the wraparound form, the side-extending portion S 3  and side-extending portion S 4  may respectively be bent toward the back surface (not shown) of the long-extending portion L 2 . According to some embodiments of the present disclosure, the side-extending portion S 3  and the side-extending portion S 4  correspond to the two assistant side display regions. 
     According to some embodiments of the present disclosure, the position of the flexible circuit board  130  in the internal space  100  may be adjusted according to design needs. Please refer to  FIG.  4   ,  FIG.  5    and  FIG.  6   , which are schematic diagrams respectively showing a structure of a display device  10  including a display panel  100  and a flexible circuit board  130  according to some embodiments of the disclosure. 
     In the embodiment shown in  FIG.  4   , the display panel  100  may be similar to the display panel shown in  FIG.  1 B  and includes a display surface TS, a back surface (not shown) that is opposite to the display surface TS, two wraparound edges  102  and two non-wraparound edges  104 , wherein the two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface together. One of the two wraparound edges  102  may include the edge between point A and point B, the edge between point B and point C, the edge between point C and point D, the edge between point D and point E, and the edge between point E and point F. The other one of the two wraparound edges  102  may include the edge between point G and point I, the edge between point I and point J, the edge between point J and point K, the edge between point K and point L, and the edge between point L and point H. The two non-wraparound edges  104  may respectively include the edge between point G and point F and the edge between point H and point A. The two non-wraparound edges  104  are respectively the edge of the long-extending portion L 2 - 1  and the edge of the long-extending portion L 2 - 2 . The flexible circuit board  130  is bonded to the non-wraparound edge  104  of the long-extending portion L 2 - 1 . When the display panel  100  is in the wraparound form, the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  are bent toward the back surface BS(L 1 ) of the long-extending portion L 1  in such a way that the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  are close to each other but do not overlap. The flexible circuit board  130  is bonded to the display surface TS(L 2 - 1 ) of the long-extending portion L 2 - 1  and extends through the space between the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  into the internal space  110 , and extends along the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  to overlap the long-extending portion L 2 - 2  on the Z direction. As shown in  FIG.  4   , a surface (such as the surface  132  shown in  FIG.  1 B )) of the flexible circuit board  130  may be spaced apart from the back surface BS(L 1 ) of the long-extending portion L 1  by a maximum distance D 1  on the Z direction, and may be spaced apart from the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  by a maximum distance D 2  on the Z direction. When the maximum distance D 2  is smaller than the maximum distance D 1 , a larger portion of the internal space  110  may be reserved to accommodate other components of the display device  10  (such as a battery and/or a control board). A higher utilization rate of the internal space  110  may be achieved. The circuit component IC may be disposed on the surface  132  of the flexible circuit board  130  and exposed in the internal space  110 , which is beneficial for heat dissipation of the circuit component IC. According to some embodiments of the present disclosure, the flexible circuit board  130  may be fixed on the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  through an adhesive layer, but it is not limited thereto. 
     In the embodiment shown in  FIG.  5   , the display panel  100  may be similar to the display panel shown in  FIG.  1 B  and includes a display surface TS, a back surface (not shown) that is opposite to the display surface TS, two wraparound edges  102  and two non-wraparound edges  104 , wherein the two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface together. The two non-wraparound edges  104  are respectively the edge of the long-extending portion L 2 - 1  and the edge of the long-extending portion L 2 - 2 . The flexible circuit board  130  is bonded to the non-wraparound edge  104  of the long-extending portion L 2 - 1 . When the display panel  100  is in the wraparound form, the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  are bent toward the back surface BS(L 1 ) of the long-extending portion L 1  in such a way that the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  partially overlap with each other on the Z direction. According to some embodiments of the present disclosure, the long-extending portion L 2 - 2  overlaps at least a portion of the bonding region  136  of the flexible circuit board  130 . When the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  are at least partially overlapped on the Z direction, an all-around (surrounding 360 degrees around the surrounding axis AX) display effect may be achieved. The flexible circuit board  130  is electrically bonded to the display surface TS(L 2 - 1 ) of the long-extending portion L 2 - 1  and extends through the space between the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  into the internal space  110 , and extends along the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  to overlap the long-extending portion L 2 - 2  on the Z direction. According to some embodiments of the present disclosure, the flexible circuit board  130  may be fixed on the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  through an adhesive layer, but it is not limited thereto. The circuit component IC may be disposed on the surface  132  of the flexible circuit board  130  and exposed in the internal space  110 , which is beneficial for heat dissipation of the circuit component IC. 
     In the embodiment shown in  FIG.  6   , the display panel  100  may be similar to the display panel shown in  FIG.  3 A  when the display panel  100  is in a non-wraparound form. The display panel  100  shown in  FIG.  6    includes a display surface TS, a back surface (not shown) that is opposite to the display surface TS, two wraparound edges  102  and two non-wraparound edges  104 , wherein the two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface together. The two non-wraparound edges  104  are respectively the edges of the long-extending portion L 2  and the short-extending portion S 1 . The flexible circuit board  130  is bonded to the non-wraparound edge  104  of the long-extending portion L 2  through the bonding region  136  of the flexible circuit board  130 . When the display panel  100  is in the wraparound form, the long-extending portion L 2  and the short-extending portion S 1  are bent toward the back surface BS(L 1 ) of the long-extending portion L 1  to encompass the internal space  110  of the display device  10 . The flexible circuit board  130  extends through the space between the long-extending portion L 2  and the short-extending portion S 1  into the internal space  110 , and extends along the back surface BS(S 1 ) of the short-extending portion S 1  to overlap the short-extending portion S 1  on the X direction. According to some embodiments of the present disclosure, the flexible circuit board  130  may be fixed on the back surface BS(S 1 ) of the short-extending portion S 1  through an adhesive layer, but it is not limited thereto. The circuit component IC may be disposed on the surface  132  of the flexible circuit board  130  and exposed in the internal space  110 , which is beneficial for heat dissipation of the circuit component IC. The embodiment shown in  FIG.  6    may achieve a substantially seamless display region having a high screen-to-body ratio. 
     Please refer to  FIG.  7 A  and  FIG.  7 B .  FIG.  7 A  is a schematic diagram showing the structure of a display panel  100  and a flexible circuit board  130  of a display device  10  according to an embodiment of the disclosure.  FIG.  7 B  is a schematic plan view showing the display panel  100  and the flexible circuit board  130  of the display device  10  in a non-wraparound form according to an embodiment of the disclosure. The difference between the embodiment shown in  FIG.  7 A ,  FIG.  7 B  and the embodiment shown in  FIG.  1 A ,  FIG.  1 B  includes that, the flexible circuit board  130  of a display device  10  shown in FIG.  FIG.  7 A ,  FIG.  7 B  is electrically bonded to one of the wraparound edges  102  of the display panel  100  through the bonding region  136  of the flexible circuit board  130  for driving the display panel  100 . 
     As shown in  FIG.  7 A  and  FIG.  7 B , the display panel  100  of the display device  10  may be, for example, a flexible display panel. The display panel  100  may include a display surface TS, a back surface (not shown) that is opposite to the display surface TS, two wraparound edges  102  opposite to each other and two non-wraparound edges  104  opposite to each other, wherein the two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface together. The display panel  100  may be divided into a long-extending portion L 1 , a long-extending portion L 2  including a long-extending portion L 2 - 1  and a long-extending portion L 2 - 2 , a short-extending portion S 1  between the long-extending portion L 1  and the long-extending portion L 2 - 1 , and a short-extending portion S 2  between the long-extending portion L 1  and the long-extending portion L 2 - 2 . The two non-wraparound edges  104  are respectively the edges of the edge of the long-extending portion L 2 - 1  and the edge of the long-extending portion L 2 - 2 . That is, the two non-wraparound edges  104  are respectively the edge between the point G and the point F and the edge between the point A and the point H. One of the two wraparound edges  102  may include the edge between point A and point B, the edge between point B and point C, the edge between point C and point D, the edge between point D and point E, and the edge between point E and point F. The other one of the two wraparound edges  102  may include the edge between point G and point I, the edge between point I and point J, the edge between point J and point K, the edge between point K and point L, and the edge between point L and point H. The flexible circuit board  130  is bonded to one of the two wraparound edges  102 . For example, the flexible circuit board  130  is electrically bonded to the edge between the point C and the point D of the wraparound edges  102  of the long-extending portion L 1 . The flexible circuit board  130  electrically is bonded to the display panel  100  through the bonding region  136  and may overlap at least a portion of the wraparound edges  102  of the long-extending portion L 1  on the Z direction. When the display panel  100  is in the wraparound form, the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  are bent toward the back surface BS(L 1 ) of the long-extending portion L 1 . The bent long-extending portion L 2 - 1  and long-extending portion L 2 - 2  may be joint together or at least partially overlapped on the Z direction, or may be completely non-overlapped with each other on the Z direction. When the long-extending portion L 2 - 1  and long-extending portion L 2 - 2  are at least partially overlapped on the Z direction, an all-around (surrounding 360 degrees around the surrounding axis AX) display effect may be achieved. According to some embodiments, the flexible circuit board  130  may be attached to one of the two long-extending portions through at least a portion of a surface of the flexible circuit board  130 , for example, the flexible circuit board  130  may be bonded to the display surface TS(L 1 ) of the long-extending portion L 1  and the flexible circuit board  130  may be bent into the internal space  110  in such a way that the surface  132  of the flexible circuit board  130  faces the back surface BS(L 1 ) of the long-extending portion L 1 . The circuit component IC disposed on the surface  134  of the flexible circuit board  130  is exposed in the internal space  110 . According to some embodiments of the present disclosure, an adhesive layer may be provided between the surface  132  of the flexible circuit board  130  and the back surface BS(L 1 ) of the long-extending portion L 1  to fix the flexible circuit board  130  on the back surface BS(L 1 ) of the long-extending portion L 1 . 
     According to some embodiments of the present disclosure, the shape of the flexible circuit board  130  may be adjusted according to design needs. Please refer to  FIG.  8 A ,  FIG.  8 B  and  FIG.  8 C , which are schematic plan views respectively showing a display panel and a flexible circuit board of a display device according to some embodiments of the disclosure. 
     In the embodiment shown in  FIG.  8 A , the display panel  100  may include a side-extending portion S 3 . The side-extending portion S 3  extends from the wraparound edges  102  of the long-extending portion L 1  along the negative Y direction. The flexible circuit board  130  is electrically bonded to the wraparound edges  102  of the display panel  100  through the side-extending portion S 3  to drive the display panel  100 . When the display panel  100  is in a wraparound form, the side-extending portion S 3  may be bent toward the back surface (not shown) of the long-extending portion L 1  to make the flexible circuit board  130  positioned at the back surface (not shown) of the long-extending portion L 1 . 
     In the embodiment shown in  FIG.  8 B , the display panel  100  may include a side-extending portion S 3  and a side-extending portion S 4  respectively on the two wraparound edges  102  at two sides of the long-extending portion L 1 . The side-extending portion S 3  extends from the wraparound edges  102  of the long-extending portion L 1  along the negative Y direction, and the side-extending portion S 4  extends from the wraparound edges  102  of the long-extending portion L 1  along the positive Y direction. The display panel  100  may further include a flap portion S 5  that connects the side-extending portion S 3 , a flap portion S 6  that connects the long-extending portion L 2 - 1 , and a flap portion S 7  that connects the long-extending portion L 2 - 2 . The peripheral of the flexible circuit board  130   a  may include a plurality of bonding regions  136  that are respectively electrically connected to the side-extending portion S 3 , the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  through the flap portion S 5 , the flap portion S 6  and the flap portion S 7  to drive the display panel  100 . When the display panel  100  is in a wraparound form, the side-extending portion S 3 , the flap portion S 5 , the flap portion S 6 , and the flap portion S 7  may be bent toward the back surface (not shown) of the display panel  100  to make the flexible circuit board  130   a  positioned at the back surface (not shown) of the display panel  100 . According to some embodiments of the present disclosure, the flexible circuit board  130   a  may include cuts  137  to increase the flexibility. According to some embodiments of the present disclosure, when the flexible circuit board  130   a  is positioned at the back surface (not shown) of the display panel  100 , the positions of the cuts  137  of the flexible circuit board  130   a  may correspond to the short-extending portion S 1  and the short-extending portion S 2 . 
     In the embodiment shown in  FIG.  8 C , the display panel  100  may include a side-extending portion S 3  and a side-extending portion S 4  respectively disposed at the two wraparound edges  102  of the long-extending portion L 1 . The display panel  100  further includes a flap portion S 5  that connects the side-extending portion S 3 , a flap portion S 6  that connects the long-extending portion L 2 - 1 , and a flap portion S 7  that connects the long-extending portion L 2 - 2 . The flexible circuit board  130   b , the flexible circuit board  130   c  and the flexible circuit board  130   d  are respectively connected to the side-extending portion S 3 , the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2  through the flap portion S 5 , the flap portion S 6  and the flap portion S 7  to drive the display panel  100 . 
     Please refer to  FIG.  9    and  FIG.  10   , which are schematic diagrams respectively showing the structure of a display panel  100  and a flexible circuit board  130  of a display device  10  according to some embodiments of the disclosure. As shown in  FIG.  9    and  FIG.  10   , the display device  10  includes the display panel  100 , and the display panel  100  may be a flexible display panel. The display panel  100  may include a display surface TS, a back surface BS opposite to the display surface TS, two wraparound edges  102  and two non-wraparound edges  104 . The two wraparound edges  102  and the two non-wraparound edges  104  surround the display surface TS and the back surface BS. 
     The display panel  100  may be divided into a long-extending portion L 1 , a long-extending portion L 2  that includes a long-extending portion L 2 - 1  and a long-extending portion L 2 - 2 , a short-extending portion S 1  between the long-extending portion L 1  and the long-extending portion L 2 - 1 , and a short-extending portion S 2  between the long-extending portion L 1  and the long-extending portion L 2 - 2 . The two non-wraparound edges  104  are respectively the edge of the long-extending portion L 2 - 1  and the edge of the long-extending portion L 2 - 2 . The display panel  100  may include a side-extending portion S 3  on the wraparound edge  102  at one side of the long-extending portion L 1 . The flexible circuit board  130  may be electrically bonded to the wraparound edge  102  through the side-extending portion S 3  to drive the display panel  100 . As shown in  FIG.  9    and  FIG.  10   , when the display panel  100  is in a wraparound form, the side-extending portion S 3  may be bent toward the back surface BS(L 1 ) of the long-extending portion L 1  to make the flexible circuit board  130  positioned in the internal space  110 . A surface (such as the surface  132  shown in  FIG.  1 B )) of the flexible circuit board  130  may be spaced apart from the back surface BS(L 1 ) of the long-extending portion L 1  by a maximum distance D 1  on the Z direction, and may be spaced apart from the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  (or the back surface BS(L 2 - 1 ) of the long-extending portion L 2 - 1 ) by a maximum distance D 2  on the Z direction. 
     The difference between the embodiments shown in  FIG.  9    and  FIG.  10    includes that, in the wraparound form of the display panel  100 , the side-extending portion S 3  in  FIG.  9    has a smaller bending radius to make the flexible circuit board  130  closer to the back surface BS(L 1 ) of the long-extending portion L 1  and be fixed. In other words, in  FIG.  9   , the maximum distance D 1  is smaller than the maximum distance D 2 . On the contrary, the side-extending portion S 3  in  FIG.  10    has a larger bending radius to make the flexible circuit board  130  closer to the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  (or the back surface BS(L 2 - 1 ) of the long-extending portion L 2 - 1 ) and be fixed. In other words, in  FIG.  10   , the maximum distance D 1  is larger than the maximum distance D 2 . By making the flexible circuit board  130  closer to either the back surface BS(L 1 ) of the long-extending portion L 1  or the back surface BS(L 2 - 2 ) of the long-extending portion L 2 - 2  (or the back surface BS(L 2 - 1 ) of the long-extending portion L 2 - 1 ), a larger portion of the internal space  110  may be reserved to accommodate other components of the display device  10  (such as a battery and/or a control board). A higher utilization rate of the internal space  110  may be achieved. According to some embodiments of the present disclosure, the side-extending portion S 3  of  FIG.  10    may display images and be used as an assistant side display region of the display device  10 . 
     Please refer to  FIG.  11   , which is a schematic diagram showing a display panel  100  and a flexible circuit board  10  of a display device  10  in a non-wraparound form according to an embodiment of the disclosure. The upper portion of  FIG.  11    is a plan view, and the lower portion of  FIG.  11    is a cross-sectional view of the display panel  100  along line B-B′ shown in the plan view. The display panel  100  may be a flexible display panel and include a display surface TS, a back surface BS opposite to the display surface TS, two wraparound edges  102  and two non-wraparound edges  104 . The flexible circuit board  130  is bonded to one of the wraparound edges  102  of the display panel  100 . The display panel  100  may include a thin-film-transistor (TFT) substrate or a circuit board, but is not limited thereto. According to some embodiments of the present disclosure, the display panel  100  may include a substrate  101  and a circuit structure layer  120  disposed on the substrate  101 . According to some embodiments of the present disclosure, the circuit structure layer  120  may include light emitting components, optical layers and/or covering layer disposed on the circuit structure layer  120 . For the sake of simplicity, the above components are not shown in the diagram. 
     According to some embodiments of the present disclosure, the substrate  101  is used to carry the pixel array of the display panel  100 . According to some embodiments of the present disclosure, the substrate  101  may be flexible substrate. A supporting layer (not shown) or a protecting layer (not shown) may be provided on the back side of the substrate  101 . 
     The circuit structure layer  120  is disposed on the front side of the substrate  101  and may include multiple layers including driving circuit components and circuit wires (such as transistors, capacitors, data lines, scan lines, light-emitting control lines, power lines, ground potential lines, and fan-out circuits, or other electrical components) to control the display units of the display panel  100 . To simplify the description, only the wires  160  that are perpendicular to the wraparound edges  102  are shown in  FIG.  11    for illustration. For example, the wires  160  shown in  FIG.  11    may be data lines, but is not limited thereto. The wires  160  extend along the Y direction and are arranged on the substrate  101  corresponding to the long-extending portion L 2 - 1 , the short-extending portion S 1 , the long-extending portion L 1 , the short-extending portion S 2 , and the long-extending portion L 2 - 2  of the display panel  100 . The bonding region  136  of the flexible circuit board  130  is electrically bonded to the display panel  100  and electrically connected to the wires  160 , allowing the circuit component IC on the flexible circuit board  130  to control each of the wires  160 . It should be understood that the wires  160  may be other types of control lines, such as scan lines. 
     Fan-out lines such as lines  162  and lines  164  may be disposed on the substrate  101  to electrically connect the lines  160  and the bonding region  136  of the flexible circuit board  130 . According to some embodiments of the present disclosure, the lines  160 , the lines  162  and the lines  164  may be formed in different layers of the circuit structure layer  120 . For example, as shown in the lower portion of  FIG.  11   , the circuit structure layer  120  (from lower portion that is closer to the substrate  101  to upper portion that is away from the substrate  101 ) may include a first insulating layer  150 , a second insulating layer  152  and a third insulating layer  154 . The lines  160  are disposed between the substrate  101  and the first insulating layer  150 . The lines  162  are disposed between the first insulating layer  150  and the second insulating layer  152 . The lines  164  are disposed between the second insulating layer  152  and the third insulating layer  154 . In this way, the lines  160 , the lines  162 , and the lines  164  may be at least partially overlapped or substantially aligned on the edges on the Z direction. For example, as shown in  FIG.  11   , the edges of the lines  160 , the lines  162 , and the lines  164  may be aligned along the line S 1 . In this way, the circuit layout flexibility may be increased. In other embodiments, the distances between the lines  160 , the lines  162 , and the lines  164  formed in different layers of the circuit structure layer  120  on the X direction may be smaller than the distances between the lines  160 , the lines  162 , and the lines  164  formed in a same layer (such as between the first insulating layer  150  and the second insulating layer  152 ) of the circuit structure layer  120 . In this way, the circuit layout flexibility may be increased. In the embodiment shown in  FIG.  11   , the distance between the lines  160  and the lines  162  may be the distance between the point Q 1  and the point Q 2  on the X direction. It should be noted that the sequence of the lines  160 , the lines  162  and the lines  164  on the Z direction is not limited to the illustrated embodiment and may be adjusted according to design needs. For example, the lines  160  in  FIG.  11    are disposed in the insulating layer below the lines  162  or the lines  164 . In other embodiments, the lines  160  may be disposed in the insulating layer above the lines  162  or the lines  164 , or the lines  160  may be formed in the insulating layer between the line  162  and the line  164 , but are not limited thereto. As shown in the upper portion of  FIG.  11   , the lines  162  may include segments that extend along the X direction for electrically connecting (through the vias through the first insulating layer  150 , such as the vias P 1 ) the lines  160  in the long-extending portion L 2 - 1  and the long-extending portion L 2 - 2 . The lines  164  may include segments that extend along the X direction for electrically connecting (through the vias through the first insulating layer  150  and the second insulating layer  152 , such as the vias P 1 ) the lines  160  in the short-extending portion S 1  and the short-extending portion S 2 . 
     Please refer to  FIG.  12   , which is a flow chart showing the steps of a wrapping process  200  for wrapping a display panel  100  according to an embodiment of the disclosure. For the ease of understanding, the following description, with reference to  FIG.  12   ,  FIG.  1 A  and  FIG.  1 B  at the same time, will the steps of the wrapping method  200  to wrap a display panel  100  having a flexible circuit board  130  bonded to a non-wraparound edge  104  of the display panel  100 . 
     The wrapping process  200  starts at the step  202 . Following, the step  204  is performed to electrically connect the display panel and the flexible circuit board. As shown in  FIG.  1 B , the flexible circuit board  130  is bonded to one of the non-wraparound edges  104  at one side of the long-extending portion L 2 - 1 . Following, the step  206  is performed to bend (first bending step) a side of the display panel where the flexible circuit board is bonded. As shown in  FIG.  1 A , the short-extending portion S 1  is bent in such a way that the wraparound edges  102  surround the surrounding axis AX to make the long-extending portion L 2 - 1  toward the back surface BS(L 1 ) of the long-extending portion L 1  and at least partially overlap the long-extending portion L 1  on the Z direction. Subsequently, step  208  is performed to fix the side of the display panel near the flexible circuit board to keep the shape of the bent side of the display panel after the first bending step. The method for fixing the structure/shape of the bent side of the display panel in the step  208  may include using a supporting structure, but is not limited thereto. Afterward, optionally, step  209  may be performed to carry out a first inspection to check if defects such as cracks or line broken occur in the display panel  100  after the first bending step. The first inspection may use optical inspection device or other suitable inspection devices, but is not limited thereto. 
     If defects are found in the display panel, the display panel fails to pass the first inspection and the step  209 ′ is then performed to scrap the display panel. If no defects are found in the display panel, the display panel passes the first inspection and the step  210  is then performed to bend (second bending step) another side of the display panel that is away from the flexible circuit board. As shown in  FIG.  1 B , the short-extending portion S 2  is bent in such a way that the wraparound edges  102  surround the surrounding axis AX to make the long-extending portion L 2 - 2  toward the back surface BS(L 1 ) of the long-extending portion L 1  and at least partially overlap the long-extending portion L 1  on the Z direction. According to some embodiments of the present disclosure, as shown in  FIG.  1 A , the non-wraparound edge  104  of the long-extending portion L 2 - 2  is close to the non-wraparound edge  104  of the long-extending portion L 2 - 1 , and the long-extending portion L 2 - 2  and the long-extending portion L 2 - 2  do not overlap with each other on the Z direction. According to other embodiments of the present disclosure, as shown in  FIG.  5   , the long-extending portion L 2 - 2  of the bent display panel  100  may overlap a portion of the display surface TS(L 2 - 1 ) of the long-extending portion L 2 - 1  on the Z direction. 
     Subsequently, step  212  is performed to fix the side of the display panel away from the flexible circuit board to keep the shape of the bent side of the display panel after the second bending step. The method for fixing the structure/shape of the bent side of the display panel in the step  212  may include using a supporting structure, but is not limited thereto. Afterward, optionally, step  213  may be performed to carry out a second inspection to check if defects such as cracks or line broken occur in the display panel  100  after the second bending step. The second inspection may use optical inspection device or other suitable inspection devices, but is not limited thereto. If defects are found in the display panel, the display panel fails to pass the second inspection and the step  213 ′ is then performed to scrap the display panel. If no defects are found in the display panel, the display panel passes the second inspection and step  214  is then performed to end the wrapping process  200 . Afterward, subsequent process steps such as back-end module assembly or inspections after assembly may be performed, but are not limited thereto. 
     In other embodiments, as illustrated below, the wrapping process  200  may be applied to wrap a display panel  100  having a flexible circuit board  130  bonded to a wraparound edge  102  of the display panel  100 . Please refer to  FIG.  9   ,  FIG.  10    and  FIG.  12    at the same time in the following illustrated embodiment. 
     The wrapping process  200  starts at the step  202 . Following, the step  204  is performed to connect the display panel and the flexible circuit board. As shown in  FIG.  9    and  FIG.  10   , a side-extending portion S 3  is disposed on the wraparound edge  102  of one side of the long-extending portion L 1 , and the flexible circuit board  130  is bonded to the side-extending portion S 3 . Following, the step  206  is performed to bend (first bending step) the side of the display panel near the flexible circuit board. As shown in  FIG.  9    and  FIG.  10   , the side-extending portion S 3  is bent toward the back surface BS(L 1 ) of the long-extending portion L 1  to make the flexible circuit board  130  and the long-extending portion L 1  at least partially overlapped on the Z direction. Subsequently, step  208  is performed to fix the side of the display panel near the flexible circuit board to keep the shape of the bent side of the display panel after the first bending step. The method for fixing the structure/shape of the bent side of the display panel in the step  208  may include using a supporting structure, but is not limited thereto. Afterward, optionally, step  209  may be performed to carry out a first inspection to check if defects such as cracks or line broken occur in the display panel  100  after the first bending step. The first inspection may use optical inspection device or other suitable inspection devices, but is not limited thereto. 
     If defects are found in the display panel, the display panel fails to pass the first inspection and the step  209 ′ is then performed to scrap the display panel. If no defects are found in the display panel, the display panel passes the first inspection and the step  210  is then performed to bend (second bending step) the other sides of the display panel that is away from the flexible circuit board. As shown in  FIG.  9    and  FIG.  10   , the short-extending portion S 2  is bent in such a way that the wraparound edges  102  surround the surrounding axis AX to make the long-extending portion L 2 - 2  toward the back surface BS(L 1 ) of the long-extending portion L 1  and at least partially overlap the long-extending portion L 1  on the Z direction. In the step  210 , the short-extending portion S 1  is bent to make the long-extending portion L 2 - 1  toward the back surface BS(L 1 ) of the long-extending portion L 1  and at least partially overlap the long-extending portion L 1  on the Z direction. According to some embodiments of the present disclosure, after the second bending step, the long-extending portion L 2 - 2  and the long-extending portion L 2 - 1  may be close to each other but do not overlap. According to some embodiments of the present disclosure, after the second bending step, the long-extending portion L 2 - 2  and the long-extending portion L 2 - 1  may partially overlap. 
     Subsequently, step  212  is performed to fix the side of the display panel away from the flexible circuit board to keep the shape of the bent side of the display panel after the second bending step. The method for fixing the structure/shape of the bent side of the display panel in the step  212  may include using a supporting structure, but is not limited thereto. Afterward, optionally, step  213  may be performed to carry out a second inspection to check if defects such as cracks or line broken occur in the display panel  100  after the second bending step. The second inspection may use optical inspection device or other suitable inspection devices, but is not limited thereto. If defects are found in the display panel, the display panel fails to pass the second inspection and the step  213 ′ is then performed to scrap the display panel. If no defects are found in the display panel, the display panel passes the second inspection and step  214  is then performed to end the wrapping process  200 . 
     According to the above, no matter the wrapping process  200  provided by the present disclosure is applied to wrap a display panel  100 , and bond a flexible circuit board  130  to a non-wraparound edge  104  or to a wraparound edge  102  of the display panel  100 , the side of the display panel  100  that is close to the flexible circuit board  130  is firstly bent by a first bending step and followed by a first inspection to filter out abnormal display panel. After that, a second bending step is performed to normal (no defects found) display panel  100  to bend the portion of the display panel  100  that is away from the flexible circuit board  130 . In this way, invalid second bending step on abnormal display panel may be reduced. 
     Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the disclosure. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.