Flexible circuit board formed with vertical and horizontal sections

Abstract

The present invention relates to a flexible circuit board having vertical sections and horizontal sections, comprising: a first dielectric having a first signal line in contact with the upper surface or lower surface thereof, having a width wider than the first signal line, and extending along the extension direction of the first signal line; a second dielectric located below the first dielectric, having a second signal line in contact with the upper surface or lower surface thereof, having a width wider than the second signal line, and extending along the extension direction of the second signal line; a vertical section in which the first signal line and the second signal line are located on the same vertical line and extend in parallel; and a horizontal section in which the first signal line or the second signal line is changed in position by a via hole, so that the first signal line and the second signal line are located on the same horizontal line.

Description

Technical Field

[0001] This invention relates to a flexible circuit board having vertical and horizontal sections. Background Technology

[0002] like Figure 1 As shown, the flexible circuit board 1, which includes signal lines used for transmitting high-frequency signals between the antenna and antenna devices, is configured to fold a portion of its length to contact the housing 2 in order to fit within the confined space inside a wireless terminal (e.g., a smartphone, tablet, laptop, etc.).

[0003] At this time, the flexible circuit board 1, which includes multiple signal lines for transmitting multiple high-frequency signals, has its multiple signal lines configured to be located on the same vertical line (e.g., Figure 3 If the signal lines are arranged in a way that increases the radius of curvature, they become difficult to fold. Therefore, to reduce the radius of curvature, multiple signal lines are arranged on the same horizontal line (e.g., Figure 5 (The diagram shows the configuration of the signal lines).

[0004] However, the flexible circuit board 1 with multiple signal lines configured on the same horizontal line has a larger width than the flexible circuit board 1 with multiple signal lines configured on the same vertical line. This increased width makes it difficult to configure the flexible circuit board 1 in the small space inside the wireless terminal. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible circuit board having vertical and horizontal sections.

[0006] A flexible circuit board having vertical and horizontal sections according to an embodiment of the present invention includes: a first dielectric material, which contacts a first signal line on its top or bottom surface, has a width greater than that of the first signal line, and extends along the extension direction of the first signal line; a second dielectric material, located below the first dielectric material, which contacts a second signal line on its top or bottom surface, has a width greater than that of the second signal line, and extends along the extension direction of the second signal line; a vertical section, which is a section in which the first signal line and the second signal line are located on the same vertical line and extend parallel to each other; and a horizontal section, which is a section in which the position of the first signal line or the second signal line changes through a through-hole, thereby the first signal line and the second signal line are located on the same horizontal line.

[0007] The present invention includes: a first dielectric material having a first signal line in contact with it on or below, having a width greater than that of the first signal line, and extending along the extension direction of the first signal line; a second dielectric material located below the first dielectric material, having a second signal line in contact with it on or below, having a width greater than that of the second signal line, and extending along the extension direction of the second signal line; a third dielectric material located below the second dielectric material, having a third signal line in contact with it on or below, having a width greater than that of the third signal line, and extending along the extension direction of the third signal line; a vertical interval, which is an interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other; and a horizontal interval, which is an interval in which two or more of the first signal line, the second signal line, and the third signal line are changed in position through through-holes, thereby placing the first signal line, the second signal line, and the third signal line on the same horizontal line.

[0008] The horizontal interval includes: a first horizontal interval extending from the vertical interval, wherein the position of the signal line changes as it passes through the via; and a second horizontal interval extending from the first horizontal interval to be thinner than the thickness of the first horizontal interval or forming a gap between the first dielectric and the second dielectric and between the second dielectric and the third dielectric.

[0009] The present invention includes: a first dielectric material having a first signal line in contact with it on or below, having a width greater than that of the first signal line, and extending along the extension direction of the first signal line; a second dielectric material located below the first dielectric material, having a second signal line in contact with it on or below, having a width greater than that of the second signal line, and extending along the extension direction of the second signal line; a vertical section, which is a section in which the first signal line and the second signal line are located on the same vertical line and extend parallel to each other; and a horizontal section, which is a section in which the position of the first signal line changes through a first through-hole to contact the top or bottom of the second dielectric material, thereby separating the first signal line and the second signal line in a horizontal direction.

[0010] The invention is characterized by further comprising: a third dielectric located below the second dielectric, contacting a third signal line on its top or bottom, having a width wider than the third signal line, extending along the extension direction of the third signal line; in the vertical section, the second signal line and the third signal line are located on the same vertical line and extend parallel to each other; in the horizontal section, the position of the third signal line changes through a third through-hole to contact the top or bottom of the second dielectric, thereby separating the third signal line from the second signal line in the horizontal direction.

[0011] The horizontal interval includes: a first horizontal interval, which is an interval extending from the vertical interval and passing through the first through hole and the third through hole, wherein the positions of the first signal line and the third signal line change; and a second horizontal interval, wherein one or more of the first dielectric and the third dielectric are removed to be thinner than the thickness of the first horizontal interval.

[0012] The invention is characterized by further comprising: a first sub-dielectric, having a first sub-ground contact on its upper or lower surface, located between the first dielectric and the second dielectric; a second sub-dielectric, having a second sub-ground contact on its upper or lower surface, located between the second dielectric and the third dielectric; a first side dielectric, having a first side ground contact on its upper or lower surface, located above the first dielectric; and a second side dielectric, having a second side ground contact on its upper or lower surface, located below the third dielectric, wherein at least one of the first sub-dielectric, the second sub-dielectric, the first side dielectric, and the second side dielectric is removed in the second horizontal interval.

[0013] The horizontal interval includes: a first horizontal interval, which extends from the vertical interval and is bonded between the first dielectric and the second dielectric, and between the second dielectric and the third dielectric, by direct thermal fusion bonding or by using either the weld sheet or the prepreg as a medium; and a second horizontal interval, which extends from the first horizontal interval and is separated between the first dielectric and the second dielectric, and between the second dielectric and the third dielectric, without the thermal fusion bonding or the use of the medium.

[0014] The invention is characterized by further comprising: a first sub-dielectric, which is in contact with a first sub-ground on or below, and is located between the first dielectric and the second dielectric; a second sub-dielectric, which is in contact with a second sub-ground on or below, and is located between the second dielectric and the third dielectric; a first side dielectric, which is in contact with a first side ground on or below, and is located above the first dielectric; and a second side dielectric, which is in contact with a second side ground on or below, and is located below the third dielectric. In the second horizontal interval, the first dielectric is separated from the first sub-dielectric and the first side dielectric, and in the second horizontal interval, the third dielectric is separated from the second sub-dielectric and the second side dielectric.

[0015] The present invention is characterized in that, in the second horizontal interval, the second dielectric is separated from both the first sub-dielectric and the second sub-dielectric.

[0016] The horizontal interval includes: a first horizontal interval, which extends from the vertical interval and has the first through hole and the third through hole formed therein; a second horizontal interval, which is the interval in which the positions of the first signal line and the third signal line change through the first through hole and the third through hole. The flexible circuit board having the vertical interval and the horizontal interval further includes: a first ground, which is formed around the first signal line in the vertical interval and the first horizontal interval on the same surface that contacts the first dielectric; a second ground, which is formed around the second signal line in the vertical interval and the first horizontal interval on the same surface that contacts the second dielectric; and a third ground, which is formed around the third signal line in the vertical interval and the first horizontal interval on the same surface that contacts the third dielectric.

[0017] The invention also includes: a grounding via, which is perpendicularly penetrated to electrically connect the first ground, the second ground, and the third ground around the area where the first via and the third via are formed.

[0018] The present invention includes: a first dielectric material having a first signal line in contact with its top or bottom surface, having a width greater than that of the first signal line, and extending along the extension direction of the first signal line; a second dielectric material located below the first dielectric material, having a second signal line in contact with its top or bottom surface, having a width greater than that of the second signal line, and extending along the extension direction of the second signal line; a third dielectric material located below the second dielectric material, having a third signal line in contact with its top or bottom surface, having a width greater than that of the third signal line, and extending along the extension direction of the third signal line; a vertical interval, which is an interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other; and a horizontal interval, which is an interval in which the second signal line and the third signal line change position through a second through hole and a third through hole respectively to contact the top or bottom surface of the first dielectric material, thereby being separated from the first signal line in a horizontal direction.

[0019] The present invention includes: a first dielectric material having a first signal line in contact with its top or bottom surface, having a width greater than that of the first signal line, and extending along the extension direction of the first signal line; a second dielectric material located below the first dielectric material, having a second signal line in contact with its top or bottom surface, having a width greater than that of the second signal line, and extending along the extension direction of the second signal line; a third dielectric material located below the second dielectric material, having a third signal line in contact with its top or bottom surface, having a width greater than that of the third signal line, and extending along the extension direction of the third signal line; a vertical interval, which is an interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other; and a horizontal interval, which is an interval in which the positions of the first signal line and the second signal line change through a first through-hole and a second through-hole respectively to contact the top or bottom surface of the third dielectric material, thereby separating them from the third signal line in a horizontal direction.

[0020] The present invention includes: a first dielectric, having a first signal line in contact with its top or bottom, having a width greater than that of the first signal line, and extending along the extension direction of the first signal line; a second dielectric, located below the first dielectric, having a second signal line in contact with its top or bottom, having a width greater than that of the second signal line, and extending along the extension direction of the second signal line; a third dielectric, located below the second dielectric, having a third signal line in contact with its top or bottom, having a width greater than that of the third signal line, and extending along the extension direction of the third signal line; and a first sub-dielectric, located between the first dielectric and the second dielectric, having a width corresponding to that of the second dielectric, and extending along the extension direction of the first signal line. The second dielectric extends in the direction of extension; the second sub-dielectric, located between the second dielectric and the third dielectric, has a width corresponding to the second dielectric and extends along the direction of extension of the second dielectric; the vertical interval is the interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other; the horizontal interval is the interval in which the first signal line and the third signal line change position through the first through hole and the third through hole respectively to contact the top or bottom of the first sub-dielectric or the top or bottom of the second sub-dielectric, thereby separating them from the second signal line in the horizontal direction.

[0021] The present invention is characterized in that, in the horizontal interval, the horizontal width of the first dielectric, the second dielectric, and the third dielectric is greater than the width of the first signal line and the third signal line separated in the horizontal direction.

[0022] The horizontal interval includes: a first bending interval (1A), which is the interval in which the first signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a first extension interval (1A), which is the interval in which the first signal line extends from the first bending interval in a direction that bends toward the first bending interval; a first bending interval (1B), which is the interval in which the first signal line extends from the first extension interval in a manner that bends horizontally toward the first extension interval; a first extension interval (1B), which is the interval in which the first signal line changes position through the first through-hole to contact the upper or lower surface of the second dielectric; and a first extension interval (1C), which is the interval in which the first signal line extends from the first alteration interval in the same direction as the first extension interval (1B).

[0023] The horizontal interval also includes: a second A extension interval, which is the interval in which the second signal line extends from the vertical interval in the same direction as the vertical interval.

[0024] The horizontal interval further includes: a 3A bending interval, which is the interval in which the third signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a 3A extension interval, which is the interval in which the third signal line extends from the 3A bending interval in a direction that bends toward the 3A bending interval; a 3B bending interval, which is the interval in which the third signal line extends from the 3A extension interval in a manner that bends horizontally toward the 3A extension interval; a 3B extension interval, which is the interval in which the third signal line extends from the 3B bending interval in a direction that bends toward the 3B bending interval; a 3A change interval, which is the interval in which the position of the third signal line changes through the third through-hole to contact the top or bottom of the second dielectric; and a 3C extension interval, which is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3B extension interval.

[0025] The horizontal interval includes: a first bending interval (1A), which is the interval in which the first signal line extends from the vertical interval in a horizontal direction towards the vertical interval; a first bending interval (1B), which is the interval in which the first signal line extends from the first bending interval (1A) in a horizontal direction towards the direction of the bending of the first bending interval; a first extension interval (1B), which is the interval in which the first signal line extends from the first bending interval (1B) in the direction of the bending of the first bending interval; a first change interval (1A), which is the interval in which the position of the first signal line changes through the first through-hole to contact the top or bottom of the second dielectric; a first extension interval (1C), which is the interval in which the first signal line extends from the first change interval (1A) in the same direction as the first extension interval (1B); and a second extension interval (2A), which is the interval in which the second signal line... The third signal line extends from the vertical interval in the same direction as the vertical interval; the third bending interval is the interval in which the third signal line extends from the vertical interval in a horizontal direction towards the vertical interval; the third bending interval is the interval in which the third signal line extends from the third bending interval in a horizontal direction towards the direction of the bending interval; the third extension interval is the interval in which the third signal line extends from the third bending interval in a direction towards the direction of the bending interval; the third change interval is the interval in which the position of the third signal line changes through the third through-hole to contact the top or bottom of the second dielectric; the third extension interval is the interval in which the third signal line extends from the third change interval in the same direction as the third extension interval.

[0026] The horizontal interval includes: a first bending interval (1A), which is the interval in which the first signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a first extension interval (1A), which is the interval in which the first signal line extends from the first bending interval in a direction that bends through the first bending interval; a first change interval (1A), which is the interval in which the position of the first signal line changes as it passes through the first through hole; and a first extension interval (1B), which is the interval in which the first signal line extends from the first change interval in the same direction as the first extension interval (1A).

[0027] The horizontal interval includes: a second bending interval, which is the interval in which the second signal line extends from the vertical interval in a manner that bends in the horizontal direction of the vertical interval; and a second extension interval, which is the interval in which the second signal line extends from the second bending interval in a direction that bends from the second bending interval.

[0028] The horizontal interval includes: a 3A bending interval, which is the interval in which the third signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a 3A extension interval, which is the interval in which the third signal line extends from the 3A bending interval in the direction of bending by the 3A bending interval; a 3A change interval, which is the interval in which the position of the third signal line changes as it passes through the third through hole; and a 3B extension interval, which is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3A extension interval.

[0029] The horizontal interval includes: a first bending interval (1A), which is the interval in which the first signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a first extension interval (1A), which is the interval in which the first signal line extends from the first bending interval in a direction that bends toward the first bending interval; a first change interval (1A), which is the interval in which the position of the first signal line changes as it passes through the first through-hole; a first extension interval (1B), which is the interval in which the first signal line extends from the first change interval in the same direction as the first extension interval; a first bending interval (1B), which is the interval in which the first signal line extends from the first extension interval in a manner that bends horizontally toward the first extension interval; and a first extension interval (1C), which is the interval in which the first signal line extends from the first bending interval in a direction that bends toward the first bending interval.

[0030] The horizontal interval includes: a second bending interval (2A), which is the interval in which the second signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a second extension interval (2A), which is the interval in which the second signal line extends from the second bending interval in a direction that bends toward the second bending interval; a second bending interval (2B), which is the interval in which the second signal line extends from the second extension interval in a manner that bends horizontally toward the second extension interval; and a second extension interval (2B), which is the interval in which the second signal line extends from the second bending interval in a direction that bends toward the second bending interval.

[0031] The horizontal interval includes: a 3A bending interval, which is the interval in which the third signal line extends from the vertical interval in a manner that bends horizontally toward the vertical interval; a 3A extension interval, which is the interval in which the third signal line extends from the 3A bending interval in a direction that bends toward the 3A bending interval; a 3A change interval, which is the interval in which the position of the third signal line changes as it passes through the third through-hole; a 3B extension interval, which is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3A extension interval; a 3B bending interval, which is the interval in which the third signal line extends from the 3B extension interval in a manner that bends horizontally toward the 3B extension interval; and a 3C extension interval, which is the interval in which the third signal line extends from the 3B bending interval in a direction that bends toward the 3B bending interval.

[0032] The horizontal interval includes: a first horizontal interval, which is an interval extending from the vertical interval and passing through the first through hole and the third through hole, wherein the positions of the first signal line and the third signal line change; and a second horizontal interval, wherein one or more of the first dielectric and the third dielectric are removed to be thinner than the thickness of the first horizontal interval.

[0033] The invention is characterized by further comprising: a first sub-dielectric, having a first sub-ground contact on its upper or lower surface, located between the first dielectric and the second dielectric; a second sub-dielectric, having a second sub-ground contact on its upper or lower surface, located between the second dielectric and the third dielectric; a first side dielectric, having a first side ground contact on its upper or lower surface, located above the first dielectric; and a second side dielectric, having a second side ground contact on its upper or lower surface, located below the third dielectric, wherein at least one of the first sub-dielectric, the second sub-dielectric, the first side dielectric, and the second side dielectric is removed in the second horizontal interval.

[0034] The horizontal interval includes: a first horizontal interval, which extends from the vertical interval and is bonded between the first dielectric and the second dielectric, and between the second dielectric and the third dielectric, by direct hot melt bonding or by using either the weld sheet or the prepreg as a medium; and a second horizontal interval, which extends from the first horizontal interval and is separated between the first dielectric and the second dielectric, and between the second dielectric and the third dielectric, without the hot melt bonding or bonding with the medium.

[0035] The invention is characterized by further comprising: a first sub-dielectric, which is in contact with a first sub-ground on or below, and is located between the first dielectric and the second dielectric; a second sub-dielectric, which is in contact with a second sub-ground on or below, and is located between the second dielectric and the third dielectric; a first side dielectric, which is in contact with a first side ground on or below, and is located above the first dielectric; and a second side dielectric, which is in contact with a second side ground on or below, and is located below the third dielectric. In the second horizontal interval, the first dielectric is separated from the first sub-dielectric and the first side dielectric, and in the second horizontal interval, the third dielectric is separated from the second sub-dielectric and the second side dielectric.

[0036] The present invention is characterized in that, in the second horizontal interval, the second dielectric is separated from both the first sub-dielectric and the second sub-dielectric.

[0037] The present invention is characterized in that conductive adhesive or EMI shielding film is in contact with one or more of the areas above and below the second horizontal interval.

[0038] The present invention is characterized in that the horizontal intervals are set as a pair of symmetrical intervals, and the vertical intervals are respectively provided on both sides of the pair of horizontal intervals.

[0039] The invention is characterized in that, starting from the periphery around which the position of the signal line changes due to each of the pair of horizontal intervals via a through-hole, the middle of the pair of horizontal intervals is disposed inside the wireless terminal to pass above or below the battery.

[0040] The invention is characterized in that, starting from the periphery around which the position of the signal line changes due to each of the pair of horizontal intervals via a through-hole, the middle of the pair of horizontal intervals is disposed inside the wireless terminal to pass above or below the battery.

[0041] The present invention is characterized in that the pair of horizontal sections are vertically folded so that the sides face upward and are disposed inside the wireless terminal, and the lower part of the vertically folded pair of horizontal sections is adhered to a wall that is vertically erected inside the wireless terminal.

[0042] The present invention is characterized in that the pair of horizontal sections are vertically folded so that the sides face upward, so that the uppermost signal line passes through the through hole without changing its position, and the pair of horizontal sections are vertically folded so that the sides face upward, so that the lowermost signal line passes through the through hole and changes its position, thereby adjusting the signal transmission length so that the signal transmission length of the uppermost signal line and the signal transmission length of the lowermost signal line are the same or similar in length.

[0043] According to an embodiment of the present invention, a flexible circuit board having vertical and horizontal sections can combine the advantages of a vertical section (easily configured in a small space within a wireless terminal) and a horizontal section (reduced radius of curvature for easy folding). Therefore, it is suitable for configuration within wireless terminals in various environments. Attached Figure Description

[0044] Figure 1 This is a diagram illustrating the configuration of an existing flexible circuit board on a wireless terminal.

[0045] Figure 2 This is a side view showing an embodiment of the present invention.

[0046] Figure 3 This is a diagram showing a cross-section of a vertical section according to an embodiment of the present invention.

[0047] Figure 4 This is a diagram showing a cross-section of a first horizontal section according to an embodiment of the present invention.

[0048] Figures 5 to 8 This is a diagram showing a cross-section of the second horizontal section according to an embodiment of the present invention.

[0049] Figure 9 This is a diagram showing a cross-section of the first horizontal section of the grounding via according to an embodiment of the present invention.

[0050] Figure 10 This is an illustration of an embodiment of the invention for illustrating with Figure 2 Side view of different embodiments.

[0051] Figure 11 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal section in different embodiments.

[0052] Figure 12 This is an illustration of an embodiment of the invention for illustrating with Figure 2 Side view of different embodiments.

[0053] Figure 13 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal section in different embodiments.

[0054] Figure 14 This is a side view showing an embodiment of the present invention.

[0055] Figure 15a , Figure 15b as well as Figure 15c This is a diagram showing a cross-section of the second horizontal section according to an embodiment of the present invention.

[0056] Figure 16 This is an illustration of an embodiment of the invention for illustrating with Figure 3 Diagrams of cross-sections of the vertical sections in different embodiments.

[0057] Figure 17 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal section in different embodiments.

[0058] Figure 18 This is an illustration of an embodiment of the invention for illustrating with Figure 3 Diagrams of cross-sections of the vertical sections in different embodiments.

[0059] Figure 19 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal section in different embodiments.

[0060] Figure 20 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal section in different embodiments.

[0061] Figures 21 to 23 This is an illustration of the invention for illustrating embodiments. Figures 5 to 8 A cross-sectional view of the second horizontal section in different embodiments.

[0062] Figures 24 to 26 This is a diagram illustrating a first embodiment distinguished by shape according to an embodiment of the present invention.

[0063] Figures 27 to 34 The embodiments according to the present invention are shown in sequence. Figure 2 A diagram of a layered structure.

[0064] Figures 35 to 40 The embodiments according to the present invention are shown in sequence. Figure 14 A diagram of a layered structure.

[0065] Figure 41 This is a diagram illustrating a second embodiment distinguished by shape according to an embodiment of the present invention.

[0066] Figure 42 This is a diagram illustrating a third embodiment distinguished by shape according to an embodiment of the present invention.

[0067] Figure 43a as well as Figure 43b This is a diagram illustrating an application configuration according to an embodiment of the present invention.

[0068] Figure 44 as well as Figure 45 This illustrates an embodiment of the invention. Figure 43a A diagram of cross-sections on both sides of the first horizontal interval.

[0069] Figure 46 This is a diagram illustrating an application configuration according to an embodiment of the present invention.

[0070] Figure 47 as well as Figure 48 This illustrates an embodiment of the invention. Figure 43b as well as Figure 46 A diagram of cross-sections on both sides of the first horizontal interval.

[0071] Figure 49 as well as Figure 50 This is an illustration of an embodiment of the invention for illustrating with Figure 47 as well as Figure 48 A cross-sectional view of both sides of the first horizontal section in different embodiments.

[0072] Figures 51 to 56 This is a diagram illustrating an application example of a wireless terminal according to an embodiment of the present invention. Detailed Implementation

[0073] like Figure 1 As shown, the flexible circuit board 1, which includes signal lines used for transmitting high-frequency signals between the antenna and antenna devices, is configured to fold a portion of its length to contact the housing 2 in order to fit within the confined space inside a wireless terminal (e.g., a smartphone, tablet, laptop, etc.).

[0074] At this time, the flexible circuit board 1, which includes multiple signal lines for transmitting multiple high-frequency signals, has its multiple signal lines configured to be located on the same vertical line (e.g., Figure 3 If the signal lines are arranged in a way that increases the radius of curvature, they become difficult to fold. Therefore, to reduce the radius of curvature, multiple signal lines are arranged on the same horizontal line (e.g., Figure 5 (The diagram shows the configuration of the signal lines).

[0075] However, the flexible circuit board 1 with multiple signal lines configured on the same horizontal line has a larger width than the flexible circuit board 1 with multiple signal lines configured on the same vertical line. This increased width makes it difficult to configure the flexible circuit board 1 in the small space inside the wireless terminal.

[0076] The embodiments of the present invention described below are based on a flexible circuit board 1 including a first signal line 21, a second signal line 22, and a third signal line 23. However, the invention is not limited thereto, and it should be understood that a flexible circuit board 1 including two or more signal lines is included in the description.

[0077] For example, the flexible circuit board 1, which includes two signal lines, can be formed by excluding any one of the first signal line 21, the second signal line 22, and the third signal line 23.

[0078] In addition, the flexible circuit board 1 including four signal lines can be similar to the case where the first signal line 21 and the third signal line 23 are located above and below the second signal line 22, respectively. The signal lines and related components are also located above the first signal line 21 and / or below the third signal line 23, thereby forming a flexible circuit board 1 including four or more signal lines.

[0079] To briefly explain the attached diagram,

[0080] Figure 2 This is a side view showing an embodiment of the present invention.

[0081] Figure 3 This is a diagram showing a cross-section of the vertical section 100 according to an embodiment of the present invention.

[0082] Figure 4 This is a diagram showing a cross-section of the first horizontal section 200A according to an embodiment of the present invention.

[0083] Figures 5 to 8 This is a diagram showing a cross-section of the second horizontal section 200B according to an embodiment of the present invention.

[0084] Figure 9 This is a diagram showing a cross-section of the first horizontal section 200A of the grounding via GH according to an embodiment of the present invention.

[0085] Figure 10 This is an illustration of an embodiment of the invention for illustrating with Figure 2 Side views of different embodiments,

[0086] Figure 11 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal interval 200A in different embodiments.

[0087] Figure 12 This is an illustration of an embodiment of the invention for illustrating with Figure 2 Side views of different embodiments,

[0088] Figure 13 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal interval 200A in different embodiments.

[0089] Figure 14 This is a side view showing an embodiment of the present invention.

[0090] Figure 15a , Figure 15b as well as Figure 15c This is a diagram showing a cross-section of the second horizontal section 200B according to an embodiment of the present invention.

[0091] Figure 16 This is an illustration of an embodiment of the invention for illustrating with Figure 3 A cross-sectional view of the vertical section 100 in different embodiments.

[0092] Figure 17 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal interval 200A in different embodiments.

[0093] Figure 18 This is an illustration of an embodiment of the invention for illustrating with Figure 3 A cross-sectional view of the vertical section 100 in different embodiments.

[0094] Figure 19 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal interval 200A in different embodiments.

[0095] Figure 20 This is an illustration of an embodiment of the invention for illustrating with Figure 4 A cross-sectional view of the first horizontal interval 200A in different embodiments.

[0096] Figures 21 to 23 This is an illustration of an embodiment of the invention for illustrating with Figures 5 to 8 A cross-sectional view of the second horizontal interval 200B in different embodiments.

[0097] Figures 24 to 26 This is a diagram illustrating a first embodiment distinguished by shape according to embodiments of the present invention.

[0098] Figures 27 to 34 The embodiments according to the present invention are shown in sequence. Figure 2A diagram of a stacked structure.

[0099] Figures 35 to 40 The embodiments according to the present invention are shown in sequence. Figure 14 A diagram of a stacked structure.

[0100] Figure 41 This is a diagram illustrating a second embodiment differentiated by shape according to embodiments of the present invention.

[0101] Figure 42 This is a diagram illustrating a third embodiment, distinguished by shape according to embodiments of the present invention.

[0102] Figure 43a as well as Figure 43b This is a schematic diagram illustrating an application form according to an embodiment of the present invention.

[0103] Figure 44 as well as Figure 45 This illustrates an embodiment of the invention. Figure 43a A cross-sectional view of both sides of the first horizontal interval 200A.

[0104] Figure 46 This is a diagram illustrating an application configuration according to an embodiment of the present invention.

[0105] Figure 47 as well as Figure 48 This illustrates an embodiment of the invention. Figure 43b as well as Figure 46 A cross-sectional view of both sides of the first horizontal interval 200A.

[0106] Figure 49 as well as Figure 50 This is an illustration of an embodiment of the invention for illustrating with Figure 47 as well as Figure 48 Cross-sectional views of both sides of the first horizontal section 200A in different embodiments.

[0107] Figures 51 to 56 This is a diagram illustrating an application example of a wireless terminal according to an embodiment of the present invention.

[0108] First, let's explain the key points of the flexible circuit board 1, which includes two signal lines.

[0109] Although the flexible circuit board 1 including two signal lines is not shown separately in the accompanying drawings, the first signal line 21 or the third signal line 23 and related configurations can be excluded from the flexible circuit board 1 including three signal lines, thereby fully deriving the flexible circuit board 1 including two signal lines.

[0110] like Figures 2 to 8As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first dielectric 11, a second dielectric 12, a vertical section 100, and a horizontal section 200.

[0111] The first dielectric 11 is in contact with the first signal line 21 on its top or bottom, has a width that is wider than the first signal line 21, and extends along the extension direction of the first signal line 21.

[0112] The second dielectric 12 is located below the first dielectric 11, and contacts the second signal line 22 above or below it. It has a width that is wider than the second signal line 22 and extends along the extension direction of the second signal line 22.

[0113] Vertical interval 100 is the interval where the first signal line 21 and the second signal line 22 are located on the same vertical line and extend parallel to each other.

[0114] The horizontal interval 200 is the interval in which the position of the first signal line 21 or the second signal line 22 changes through the through hole, so that the first signal line 21 and the second signal line 22 are located on the same horizontal line.

[0115] For example, such as Figure 4 As shown, in the horizontal interval 200, the position of the first signal line 21 can be changed above or below the second dielectric 12 through the first through hole H1, so that it is located on the same horizontal line as the second signal line 22.

[0116] Next, the key points of the flexible circuit board 1, which includes three or more signal lines, will be explained.

[0117] Although the flexible circuit board 1 including more than four signal lines is not shown in the accompanying drawings, it is possible to fully derive a flexible circuit board 1 including more than four signal lines by adding signal lines and related configurations to a flexible circuit board 1 including three signal lines.

[0118] like Figures 2 to 8 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first dielectric 11, a second dielectric 12, a third dielectric 13, a vertical section 100, and a horizontal section 200.

[0119] The first dielectric 11 is in contact with the first signal line 21 on its top or bottom, has a width that is wider than the first signal line 21, and extends along the extension direction of the first signal line 21.

[0120] The second dielectric 12 is located below the first dielectric 11, and contacts the second signal line 22 above or below it. It has a width that is wider than the second signal line 22 and extends along the extension direction of the second signal line 22.

[0121] The third dielectric 13 is located below the second dielectric 12, and is in contact with the third signal line 23 above or below it. It has a width that is wider than the third signal line 23 and extends along the extension direction of the third signal line 23.

[0122] Vertical interval 100 is the interval in which the first signal line 21, the second signal line 22, and the third signal line 23 are located on the same vertical line and extend parallel to each other.

[0123] The horizontal interval 200 is the interval in which two or more of the first signal line 21, the second signal line 22, and the third signal line 23 change position through through holes, so that the first signal line 21, the second signal line 22, and the third signal line 23 are located on the same horizontal line.

[0124] For example, such as Figure 4 As shown, within the horizontal interval 200, the positions of the first signal line 21 and the third signal line 23 can be changed above or below the second dielectric 12 through the first through-hole H1 and the third through-hole H3, so that the first signal line 21 and the third signal line 23 are located on the same horizontal line as the second signal line 22. That is, within the horizontal interval 200, the positions of two or more signal lines can be changed through through-holes, so that the first signal line 21, the second signal line 22, and the third signal line 23 are located above or below the second dielectric 12.

[0125] In addition, such as Figure 11 As shown, within the horizontal interval 200, the positions of the second signal line 22 and the third signal line 23 can be changed above or below the first dielectric 11 through the second through-hole H2 and the third through-hole H3, so that the second signal line 22 and the third signal line 23 are located at the same position as the first signal line 21. That is, within the horizontal interval 200, the positions of two or more signal lines can be changed through through-holes, so that the first signal line 21, the second signal line 22, and the third signal line 23 are located above or below the first dielectric 11.

[0126] In addition, such as Figure 13As shown, within the horizontal interval 200, the positions of the first signal line 21 and the second signal line 22 can be changed above or below the third dielectric 13 through the first through-hole H1 and the second through-hole H2, so that the first signal line 21 and the second signal line 22 are located at the same position as the third signal line 23. That is, within the horizontal interval 200, the positions of two or more signal lines can be changed through through-holes, so that the first signal line 21, the second signal line 22, and the third signal line 23 are located above or below the third dielectric 13.

[0127] Then, the flexible circuit board 1 including four or more signal lines can be the same as the case of the flexible circuit board 1 including three signal lines described above, where the first signal line 21 and the third signal line 23 are located above and below the second signal line 22, with further signal lines added above the first signal line 21 and / or below the third signal line 23, so that the flexible circuit board 1 includes four or more signal lines.

[0128] That is, in an embodiment of the present invention, multiple signal lines are located on the same vertical line and extend in the vertical section 100, and then in the horizontal section 200, other signal lines (multiple) change position and extend through through holes so that any one signal line and other signal lines (multiple) are located on the same horizontal line. In an embodiment of the present invention, the vertical section 100 and the horizontal section 200 are integrally formed on a single flexible circuit board 1.

[0129] As described above, by forming the vertical section 100 and the horizontal section 200, the advantages of the vertical section 100 (easily configured in a small space inside the wireless terminal) and the horizontal section 200 (reduced radius of curvature for easy folding) can be combined, thus achieving the effect of being suitable for configuration inside a wireless terminal in various environments.

[0130] In addition to the points where the position of the signal line changes, the horizontal interval 200 may further have features that make the horizontal interval 200 easier to fold, which will be described later.

[0131] like Figure 2 as well as Figures 4 to 8 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first horizontal section 200A and a second horizontal section 200B.

[0132] like Figure 4 As shown, the first horizontal interval 200A is an interval that extends from the vertical interval 100 and whose position changes as the signal line passes through the via.

[0133] The second horizontal interval 200B is the interval extended by the signal line whose position changes through the through-hole, which can make the thickness thinner or form a gap.

[0134] First, such as Figure 2 As shown, the second horizontal interval 200B can extend from the first horizontal interval 200A to be thinner than the first horizontal interval 200A.

[0135] For example, such as Figure 4 As shown, if the position of the signal line changes above or below the second dielectric 12, then as Figure 2 As shown, the second horizontal interval 200B may be thinned by removing the first dielectric 11 and the third dielectric 13.

[0136] In addition, such as Figure 11 As shown, if the position of the signal line changes above or below the first dielectric 11, then as Figure 10 As shown, the second horizontal interval 200B may be thinned by removing the second dielectric 12 and the third dielectric 13.

[0137] In addition, such as Figure 13 As shown, if the position of the signal line changes above or below the third dielectric 13, then as Figure 12 As shown, the second horizontal interval 200B may be thinned by removing the first dielectric 11 and the second dielectric 12.

[0138] As described above, thinning the thickness of the second horizontal interval 200B further reduces the radius of curvature.

[0139] Next, as Figure 14 As shown, the second horizontal interval 200B can extend from the first horizontal interval 200A to form a gap between the first dielectric 11 and the second dielectric 12 and between the second dielectric 12 and the third dielectric 13.

[0140] For example, such as Figure 4 As shown, if the position of the signal line changes above or below the second dielectric 12, then as Figure 14 As shown, the second horizontal interval 200B may be formed when the solder piece 80 is removed between the first dielectric 11 and the second dielectric 12 and between the second dielectric 12 and the third dielectric 13, and an interval is formed between the first dielectric 11 and the second dielectric 12 and between the second dielectric 12 and the third dielectric 13 when the solder piece 80 is removed and separated.

[0141] As described above, if the second horizontal interval 200B is made to form an interval, thereby separating the first dielectric 11 and the third dielectric 13 from the second dielectric 12, the radius of curvature is calculated after removing the separated first dielectric 11 and the third dielectric 13, and is therefore further reduced. When the second dielectric 12 is folded, the first dielectric 11 and the third dielectric 13 have the effect of preventing the second dielectric 12 from directly contacting the housing 2 and being worn and damaged.

[0142] Detailed embodiments of the above key points will be described later.

[0143] like Figures 2 to 8 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first dielectric 11, a second dielectric 12, a vertical section 100, and a horizontal section 200.

[0144] The first dielectric 11 is in contact with the first signal line 21 on the top or bottom, has a width that is wider than the first signal line 21, and extends along the extension direction of the first signal line 21.

[0145] The second dielectric 12 is located below the first dielectric 11, and contacts the second signal line 22 above or below it. It has a width that is wider than the second signal line 22 and extends along the extension direction of the second signal line 22.

[0146] Vertical interval 100 is the interval where the first signal line 21 and the second signal line 22 are located on the same vertical line and extend parallel to each other.

[0147] The horizontal interval 200 is the interval in which the first signal line 21 changes position through the first through hole H1 to contact the top or bottom of the second dielectric 12, thereby separating the first signal line 21 and the second signal line 22 in the horizontal direction.

[0148] like Figures 2 to 8 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention further includes a third dielectric 13.

[0149] The third dielectric 13 is located below the second dielectric 12, and is in contact with the third signal line 23 above or below it. It has a width that is wider than the third signal line 23 and extends along the extension direction of the third signal line 23.

[0150] At this time, as Figures 2 to 8 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes the following features.

[0151] In vertical interval 100, the second signal line 22 and the third signal line 23 are located on the same vertical line and extend in parallel.

[0152] In the horizontal range 200, the third signal line 23 changes position through the third through hole H3 to contact the top or bottom of the second dielectric 12, thereby separating the third signal line 23 from the second signal line 22 in the horizontal direction.

[0153] The second horizontal interval 200B can be used to thin the thickness or to create a gap.

[0154] First, an embodiment of the thinning of the second horizontal interval 200B will be described later.

[0155] like Figures 2 to 8 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first horizontal section 200A and a second horizontal section 200B.

[0156] The first horizontal interval 200A is an interval that extends from the vertical interval 100 and passes through the first through hole H1 and the third through hole H3, and the positions of the first signal line 21 and the third signal line 23 change.

[0157] The second horizontal interval 200B is formed by removing one or more of the first dielectric 11 and the third dielectric 13 to make it thinner than the first horizontal interval 200A.

[0158] like Figures 2 to 8 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention further includes a first sub-dielectric 41, a second sub-dielectric 42, a first side dielectric 61, and a second side dielectric 62.

[0159] The first sub-dielectric 41 is in contact with the first sub-ground 51 on its upper or lower surface, located between the first dielectric 11 and the second dielectric 12.

[0160] The second sub-dielectric 42 is in contact with the second sub-ground 52 on the top or bottom, located between the second sub-dielectric 12 and the third sub-dielectric 13.

[0161] The first dielectric 61 is in contact with the first ground 71 on its upper or lower surface, located above the first dielectric 11.

[0162] The second dielectric 62 is in contact with the second ground 72 on its upper or lower surface, located below the third dielectric 13.

[0163] At this time, in the second horizontal interval 200B, at least one of the first dielectric 11, the third dielectric 13, the first sub-dielectric 41, the second sub-dielectric 42, the first side dielectric 61, and the second side dielectric 62 is removed.

[0164] For example, such as Figure 5 As shown, the second horizontal interval 200B is compared with the first horizontal interval 200A, and the first dielectric 11, the third dielectric 13, the first side dielectric 61 and the second side dielectric 62 may be removed.

[0165] In addition, such as Figure 6 As shown, the second horizontal interval 200B is compared with the first horizontal interval 200A, and the first dielectric 11, the third dielectric 13, the second sub-dielectric 42, the first side dielectric 61 and the second side dielectric 62 may be removed.

[0166] In addition, such as Figure 7 As shown, the second horizontal interval 200B is compared with the first horizontal interval 200A, and the first dielectric 11, the third dielectric 13, the first sub-dielectric 41, the first side dielectric 61 and the second side dielectric 62 may be removed.

[0167] In addition, such as Figure 8 As shown, the second horizontal interval 200B is compared with the first horizontal interval 200A, and the first dielectric 11, the third dielectric 13, the first sub-dielectric 41, the second sub-dielectric 42, the first side dielectric 61, and the second side dielectric 62 may be removed.

[0168] Next, an embodiment in which the second horizontal interval 200B includes a gap between dielectrics will be described later.

[0169] like Figure 14 as well as Figure 15a , Figure 15b as well as Figure 15c As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first horizontal section 200A and a second horizontal section 200B.

[0170] The first horizontal interval 200A is an interval extending from the vertical interval 100 and bonded between the first dielectric 11 and the second dielectric 12, and between the second dielectric 12 and the third dielectric 13, by direct hot melt bonding or by using either the welding sheet 80 or the prepreg as a medium.

[0171] The second horizontal interval 200B extends from the first horizontal interval 200A and is a section separated from the first dielectric 11 and the second dielectric 12, as well as from the second dielectric 12 and the third dielectric 13, by means of no thermal bonding or medium.

[0172] like Figure 14 as well as Figure 15a , Figure 15b as well as Figure 15c As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention further includes a first sub-dielectric 41, a second sub-dielectric 42, a first side dielectric 61, and a second side dielectric 62.

[0173] The first sub-dielectric 41 is in contact with the first sub-ground 51 on its upper or lower surface, located between the first dielectric 11 and the second dielectric 12.

[0174] The second sub-dielectric 42 is in contact with the second sub-ground 52 on the top or bottom, located between the second sub-dielectric 12 and the third sub-dielectric 13.

[0175] The first dielectric 61 is in contact with the first ground 71 on its upper or lower surface, located above the first dielectric 11.

[0176] The second dielectric 62 is in contact with the second ground 72 on its upper or lower surface, located below the third dielectric 13.

[0177] In the second horizontal interval 200B, the first dielectric 11 is separated from the first sub-dielectric 41 and the first side dielectric 61.

[0178] For example, such as Figure 14 as well as Figure 15a , Figure 15b as well as Figure 15c As shown, in the first horizontal interval 200A, in order to combine the first dielectric 11 with the first sub-dielectric 41 and the first side dielectric 61, the solder piece 80 located between them may be removed and separated in the second horizontal interval 200B, and a gap may be formed at the position where the solder piece 80 is removed.

[0179] In the second horizontal interval 200B, the third dielectric 13 is separated from the second sub-dielectric 42 and the second side dielectric 62.

[0180] For example, such as Figure 14 as well as Figure 15a , Figure 15b as well as Figure 15cAs shown, in the first horizontal interval 200A, in order to combine the third dielectric 13 with the second sub-dielectric 42 and the second side dielectric 62, the welding piece 80 located between them may be removed in the second horizontal interval 200B and a gap may be formed at the location where the welding piece 80 is removed.

[0181] In addition, although Figure 14 as well as Figure 15a , Figure 15b as well as Figure 15c Not illustrated, however, as needed, in the second horizontal interval 200B, the second dielectric 12 can be separated from the first sub-dielectric 41 and the second sub-dielectric 42.

[0182] For example, in the first horizontal interval 200A, in order to combine the second dielectric 12 with the first sub-dielectric 41 and the second sub-dielectric 42, the solder piece 80 located between them may be removed in the second horizontal interval 200B and a gap may be formed at the location where the solder piece 80 is removed.

[0183] The cases where the signal line in the second horizontal interval 200B is located above or below the second dielectric 12 have been described above; however, embodiments where the signal line is located in the first dielectric 11 or the third dielectric 13 will be described later.

[0184] First, an embodiment in which the signal line 200B in the second horizontal interval is located in the first dielectric 11 will be described.

[0185] like Figure 11 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first dielectric 11, a second dielectric 12, a third dielectric 13, a vertical section 100, and a horizontal section 200.

[0186] The first dielectric 11 is in contact with the first signal line 21 on the top or bottom, has a width that is wider than the first signal line 21, and extends along the extension direction of the first signal line 21.

[0187] The second dielectric 12 is located below the first dielectric 11, and contacts the second signal line 22 above or below it. It has a width that is wider than the second signal line 22 and extends along the extension direction of the second signal line 22.

[0188] The third dielectric 13 is located below the second dielectric 12, and is in contact with the third signal line 23 above or below it. It has a width that is wider than the third signal line 23 and extends along the extension direction of the third signal line 23.

[0189] Vertical interval 100 is the interval in which the first signal line 21, the second signal line 22, and the third signal line 23 are located on the same vertical line and extend parallel to each other.

[0190] The horizontal interval 200 is the interval in which the second signal line 22 and the third signal line 23 change position through the second through hole H2 and the third through hole H3 respectively to contact the top or bottom of the first dielectric 11, thereby separating them from the first signal line 21 in the horizontal direction.

[0191] At this time, horizontal interval 200 may include first horizontal interval 200A and second horizontal interval 200B, thus as follows: Figure 10 As shown, the thickness is thinner than the first horizontal interval 200A, or as... Figure 14 As shown, gaps are formed.

[0192] In addition, when gaps are formed, Figure 14 In this process, the second dielectric 12 is bonded to the first sub-dielectric 41 and the second sub-dielectric 42. However, alternatively, the first dielectric 11 can be bonded to the first side dielectric 61 and the first sub-dielectric 41.

[0193] Next, an embodiment in which the signal line 200B in the second horizontal interval is located in the third dielectric 13 will be described.

[0194] like Figure 12 as well as Figure 13 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first dielectric 11, a second dielectric 12, a third dielectric 13, a vertical section 100, and a horizontal section 200.

[0195] The first dielectric 11 is in contact with the first signal line 21 on its top or bottom, has a width that is wider than the first signal line 21, and extends along the extension direction of the first signal line 21.

[0196] The second dielectric 12 is located below the first dielectric 11, and contacts the second signal line 22 above or below it. It has a width that is wider than the second signal line 22 and extends along the extension direction of the second signal line 22.

[0197] The third dielectric 13 is located below the second dielectric 12, and is in contact with the third signal line 23 above or below it. It has a width that is wider than the third signal line 23 and extends along the extension direction of the third signal line 23.

[0198] like Figure 3As shown, the vertical interval 100 is the interval in which the first signal line 21, the second signal line 22, and the third signal line 23 are located on the same vertical line and extend parallel to each other.

[0199] like Figure 13 As shown, the horizontal interval 200 is the interval in which the positions of the first signal line 21 and the second signal line 22 change through the first through hole H1 and the second through hole H2 respectively to contact the top or bottom of the third dielectric 13, thereby separating them from the third signal line 23 in the horizontal direction.

[0200] At this time, horizontal interval 200 may include first horizontal interval 200A and second horizontal interval 200B, thus as follows: Figure 12 As shown, the thickness is thinner than the first horizontal interval 200A, or as... Figure 14 As shown, gaps are formed.

[0201] In addition, when gaps are formed, Figure 14 In this process, the second dielectric 12 is bonded to the first sub-dielectric 41 and the second sub-dielectric 42. However, instead, the third dielectric 13 may be bonded to the second side dielectric 62 and the second sub-dielectric 42.

[0202] An embodiment of the first horizontal interval 200A including the grounding via GH will be described later.

[0203] like Figure 2 as well as Figure 9 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first horizontal section 200A and a second horizontal section 200B.

[0204] The first horizontal interval 200A is an interval that extends from the vertical interval 100 and forms the first through hole H1 and the third through hole H3.

[0205] The second horizontal interval 200B is the interval in which the positions of the first signal line 21 and the third signal line 23 change due to the passage through the first through hole H1 and the third through hole H3.

[0206] like Figure 9 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first ground 31, a second ground 32 and a third ground 33.

[0207] The first ground 31 contacts the first signal line 21 of the first dielectric 11 in the vertical interval 100 and the first horizontal interval 200A to form around the first signal line 21.

[0208] The second ground 32 contacts the second signal line 22 of the second dielectric 12 in the vertical interval 100 and the first horizontal interval 200A to form around the second signal line 22.

[0209] The third ground 33, in the vertical interval 100 and the first horizontal interval 200A, contacts the third signal line 23 of the third dielectric 13 to form around the third signal line 23.

[0210] like Figure 9 As shown, the flexible circuit board 1, which has a vertical section 100 and a horizontal section 200 according to an embodiment of the present invention, includes a grounding via GH.

[0211] The grounding via GH vertically penetrates the first ground 31, the second ground 32, and the third ground 33 around the first via H1 and the third via H3 to electrically connect the first ground 31, the second ground 32, and the third ground 33.

[0212] At this time, as Figure 9 As shown, the grounding via GH can penetrate the first dielectric 11, the second dielectric 12, and the third dielectric 13 in order to vertically penetrate the first ground 31, the second ground 32, and the third ground 33.

[0213] In addition, the grounding via GH can vertically penetrate the first sub-ground 51, the second sub-ground 52, the first side ground 71 and the second side ground 72. Therefore, the grounding via GH can vertically penetrate the first sub-dielectric 41, the second sub-dielectric 42, the first side dielectric 61 and the second side dielectric 62.

[0214] The above describes the case where the first signal line 21, the second signal line 22, and the third signal line 23 are set apart in the horizontal direction in the horizontal interval 200. However, they can be set in a zigzag pattern, which will be discussed later.

[0215] like Figure 20 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes a first dielectric 11, a second dielectric 12, a third dielectric 13, a first sub-dielectric 41, a second sub-dielectric 42, a vertical section 100, and a horizontal section 200.

[0216] The first dielectric 11 is in contact with the first signal line 21 on its top or bottom, has a width that is wider than the first signal line 21, and extends along the extension direction of the first signal line 21.

[0217] The second dielectric 12 is located below the first dielectric 11, and contacts the second signal line 22 above or below it. It has a width that is wider than the second signal line 22 and extends along the extension direction of the second signal line 22.

[0218] The third dielectric 13 is located below the second dielectric 12, and is in contact with the third signal line 23 above or below it. It has a width that is wider than the third signal line 23 and extends along the extension direction of the third signal line 23.

[0219] The first sub-dielectric 41 is located between the first dielectric 11 and the second dielectric 12, and is formed to have the same width as the first dielectric 11 and the second dielectric 12.

[0220] The second sub-dielectric 42 is located between the second dielectric 12 and the third dielectric 13, and is formed to have the same width as the second dielectric 12 and the third dielectric 13.

[0221] Vertical interval 100 is the interval in which the first signal line 21, the second signal line 22, and the third signal line 23 are located on the same vertical line and extend parallel to each other.

[0222] The horizontal interval 200 is the interval in which the first signal line 21 and the third signal line 23 change position through the first through hole H1 and the third through hole H3 respectively to contact the top or bottom of the first sub-dielectric 41 or the top or bottom of the second sub-dielectric 42, thereby separating them from the second signal line 22 in the horizontal direction.

[0223] That is, the second signal line 22 contacts the top or bottom of the second dielectric 12, and the first signal line 21 and the third signal line 23 contact the top or bottom of the second sub-dielectric 42. At this time, the second signal line 22 is vertically separated from the first signal line 21 and the third signal line 23, and horizontally located between the first signal line 21 and the third signal line 23, so that the first signal line 21, the second signal line 22, and the third signal line 23 are arranged in a zigzag pattern.

[0224] As described above, if the first signal line 21, the second signal line 22, and the third signal line 23 are configured in a zigzag pattern, each signal line is tilted, thus increasing the distance between them. This allows them to be positioned closer together in the horizontal direction than when they are on the same horizontal line, thereby reducing the width of the dielectric.

[0225] The above describes the case where the first signal line 21 and the third signal line 23 are located below the second signal line 22. However, the first signal line 21 and the third signal line 23 can replace the second sub-dielectric 42 and be located above or below the first sub-dielectric 41, thus being above the second signal line 22. Alternatively, the first signal line 21 and the third signal line 23 can replace the second sub-dielectric 42 and be located above or below the first dielectric 11 or the third dielectric 13.

[0226] The flexible circuit board 1, which has a vertical section 100 and a horizontal section 200 according to an embodiment of the present invention, includes the following features.

[0227] In the horizontal interval 200, the horizontal width of the first dielectric 11, the second dielectric 12, and the third dielectric 13 is greater than the width of the first signal line 21 and the third signal line 23 separated in the horizontal direction.

[0228] Right now, Figure 4 The width of the horizontal interval 200 shown in the diagram is greater than Figure 3 The width of the horizontal direction of the vertical interval 100 shown in the diagram.

[0229] Figures 3 to 8 This shows the situation where the signal line contacts the dielectric, however... Figures 16 to 19 As shown, it is also possible that part of the signal line contacts the top of the dielectric, while the remaining part contacts the bottom of the dielectric.

[0230] Of course, although not illustrated, it could also be the entire signal line contacting the underside of the dielectric.

[0231] Based on their properties, the above embodiments can be divided into three embodiments.

[0232] First, the first embodiment will be described later.

[0233] like Figure 24 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first A bending section 211A, a first A extension section 221A, a first B bending section 211B, a first B extension section 221B, a first A change section 231A, and a first C extension section 221C.

[0234] The first bending interval 211A is an interval extending from the vertical interval 100 so that the first signal line 21 bends in the horizontal direction of the vertical interval 100.

[0235] The first extension interval 221A is the interval in which the first signal line 21 extends from the first bending interval 211A in the direction of bending from the first bending interval 211A.

[0236] The first bending interval 211B is an interval that extends from the first extension interval 221A to bend the first signal line 21 in the horizontal direction toward the first extension interval 221A.

[0237] The first extension interval 221B is the interval in which the first signal line 21 extends from the first bending interval 211B in the direction of bending from the first bending interval 211B.

[0238] The first A change interval 231A is the interval where the position of the first signal line 21 changes through the first through hole H1 to contact the upper or lower part of the second dielectric 12.

[0239] The first extension interval 221C is the interval in which the first signal line 21 extends from the first change interval 231A in the same direction as the first extension interval 221B.

[0240] like Figure 24 As shown, the horizontal section 200 of the flexible circuit board 1, which has a vertical section 100 and a horizontal section 200 according to an embodiment of the present invention, includes the following features.

[0241] Includes: the second extension interval 222A, which is the interval in which the second signal line 22 extends from the vertical interval 100 in the same direction as the vertical interval 100.

[0242] like Figure 24 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 further includes: a third A bending section 213A, a third A extension section 223A, a third B bending section 213B, a third B extension section 223B, a third A change section 233A, and a third C extension section 223C.

[0243] The 3A bending interval 213A is the interval in which the third signal line 23 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0244] The 3A extension interval 223A is the interval in which the third signal line 23 extends from the 3A bending interval 213A in the direction of bending from the 3A bending interval 213A.

[0245] The 3B bending interval 213B is the interval from the 3A extension interval 223A where the third signal line 23 extends in a horizontal direction toward the 3A extension interval 223A.

[0246] The 3B extension interval 223B is the interval in which the third signal line 23 extends from the 3B bending interval 231B in the direction of bending from the 3B bending interval 213B.

[0247] The 3A change interval 233A is the interval where the position of the third signal line 23 changes through the third through hole H3 to contact the upper or lower part of the second dielectric 12.

[0248] The 3C extension interval 223C is the interval in which the third signal line 23 extends from the 3A change interval 233A in the same direction as the 3B extension interval 223B.

[0249] The spacing between the first signal line 21 and the second signal line 22 can be adjusted in the second horizontal interval 200B by adjusting the length of the aforementioned first A extension interval 221A.

[0250] For example, if the length of the first A extension interval 221A is reduced, the separation distance becomes shorter; if the length of the first A extension interval 221A is increased, the separation distance becomes longer.

[0251] Alternatively, the spacing between the second signal line 22 and the third signal line 23 can be adjusted in the second horizontal interval 200B by adjusting the length of the third extension interval 223A.

[0252] This adjustment of the separation distance can be achieved by excluding the first A extension interval 221A and the third A extension interval 223A, thereby minimizing the separation distance, as will be described later.

[0253] like Figure 25 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes: a first A bending section 211A, a first B bending section 211B, a first B extension section 221B, a first A change section 231A, a first C extension section 221C, a second A extension section 222A, a third A bending section 213A, a third B bending section 213B, a third B extension section 223B, a third A change section 233A, and a third C extension section 223C.

[0254] The first bending interval 211A is the interval in which the first signal line 21 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0255] The first B bending interval 211B is the interval in which the first signal line 21 extends from the first A bending interval 211A in a horizontal direction that bends in the direction of bending from the first A bending interval 211A.

[0256] The first extension interval 221B is the interval in which the first signal line 21 extends from the first bending interval 211B in the direction of bending from the first bending interval 211B.

[0257] The first A change interval 231A is the interval where the position of the first signal line 21 changes through the first through hole H1 to contact the upper or lower part of the second dielectric 12.

[0258] The first extension interval 221C is the interval in which the first signal line 21 extends from the first change interval 231A in the same direction as the first extension interval 221B.

[0259] The second extension interval 222A is the interval in which the second signal line 22 extends from the vertical interval 100 in the same direction as the vertical interval 100.

[0260] The 3A bending interval 213A is the interval in which the third signal line 23 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0261] The 3B bending interval 213B is the interval in which the third signal line 23 extends from the 3A bending interval 213A in a horizontal direction that bends in the direction of the bending from the 3A bending interval 213A.

[0262] The 3B extension interval 223B is the interval in which the third signal line 23 extends from the 3B bending interval 213B in the direction of bending from the 3B bending interval 213B.

[0263] The 3A change interval 233A is the interval where the position of the third signal line 23 changes through the third through hole H3 to contact the upper or lower part of the second dielectric 12.

[0264] The 3C extension interval 223C is the interval in which the third signal line 23 extends from the 3A change interval 233A in the same direction as the 3B extension interval 223B.

[0265] Figures 27 to 34 The embodiments according to the present invention are shown in sequence. Figure 2 A diagram of a stacked structure. Figures 35 to 40 The embodiments according to the present invention are shown in sequence. Figure 14 A diagram of a layered structure.

[0266] At this point, the stacked structure is described based on the first embodiment, but it can also be applied to the second and third embodiments.

[0267] Figure 2 Layered structure and Figure 14 The stacked structures are identical in structure, but differ in the length of the dielectric depending on whether the dielectric is removed.

[0268] The stacked structure will be described later, with dielectrics as the unit, in order from bottom to top.

[0269] like Figure 27 or Figure 34 As shown, a second-side dielectric 62 is configured on it for contact with the second-side ground 72.

[0270] like Figure 28 or Figure 35 As shown, a third dielectric 13 is configured on it for contact with the third ground 33.

[0271] At this time, a third signal line 23 is provided inside the third ground 33 before its position changes through the third through hole H3.

[0272] like Figure 29 or Figure 36 As shown, a second sub-dielectric 42 is configured on it for contact with the second sub-ground 52.

[0273] like Figure 30 or Figure 37 As shown, a second dielectric 12 is disposed on it for contact with the second ground 32.

[0274] At this time, a first signal line 21 and a third signal line 23, whose positions change through the first through hole H1 and the third through hole H3, are provided on the inner side of the second grounding 32, and a second signal line 22 is provided.

[0275] like Figure 31 or Figure 38 As shown, a first sub-dielectric 41 is configured on it for contact with the first sub-ground 51.

[0276] like Figure 32 or Figure 39 As shown, a first dielectric 11 is disposed on it for contact with the first ground 31.

[0277] At this time, a first signal line 21 is provided inside the first grounding 31 before its position changes through the first through hole H1.

[0278] like Figure 33 or Figure 40 As shown, a first-side dielectric 61 is configured on it for contact with the first-side ground 71.

[0279] Next, the second embodiment will be described later.

[0280] like Figure 41 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first A bending section 211A, a first A extension section 221A, a first A change section 231A, and a first B extension section 221B.

[0281] The first bending interval 211A is the interval in which the first signal line 21 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0282] The first extension interval 221A is the interval in which the first signal line 21 extends from the first bending interval 211A in the direction of bending from the first bending interval 211A.

[0283] The first change interval 231A is the interval in which the position of the first signal line 21 changes when it passes through the first through hole H1.

[0284] The first extension interval 221B is the interval in which the first signal line 21 extends from the first change interval 231A in the same direction as the first extension interval 221A.

[0285] like Figure 41 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a second A bending section 212A and a second A extension section 222A.

[0286] The second bending interval 212A is the interval in which the second signal line 22 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0287] The second signal line 22 extends from the second bending interval 212A in the direction of bending from the second bending interval 212A.

[0288] like Figure 41 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a third A bending section 213A, a third A extension section 223A, a third A change section 233A, and a third B extension section 223B.

[0289] The 3A bending interval 213A is the interval in which the third signal line 23 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0290] The 3A extension interval 223A is the interval in which the third signal line 23 extends from the 3A bending interval 213A in the direction of bending from the 3A bending interval 213A.

[0291] The 3A change interval 233A is the interval in which the position of the third signal line 23 changes when it passes through the third through hole H3.

[0292] The 3B extension interval 223B is the interval in which the third signal line 23 extends from the 3A change interval 233A in the same direction as the 3A extension interval 223A.

[0293] Next, the third embodiment will be described later.

[0294] like Figure 42As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first A bending section 211A, a first A extension section 221A, a first A change section 231A, a first B extension section 221B, a first B bending section 211B, and a first C extension section 221C.

[0295] The first bending interval 211A is the interval in which the first signal line 21 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0296] The first extension interval 221A is the interval in which the first signal line 21 extends from the first bending interval 211A in the direction of bending from the first bending interval 211A.

[0297] The first change interval 231A is the interval in which the position of the first signal line 21 changes when it passes through the first through hole H1.

[0298] The first extension interval 221B is the interval in which the first signal line 21 extends from the first change interval 231A in the same direction as the first extension interval 221A.

[0299] The first B bending interval 211B is the interval in which the first signal line 21 extends from the first B extension interval 221B in a horizontal direction towards the first B extension interval 221B.

[0300] The first extension interval 221C is the interval in which the first signal line 21 extends from the first bending interval 211B in the direction of bending from the first bending interval 211B.

[0301] like Figure 42 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a second A bending section 212A, a second A extension section 222A, a second B bending section 212B, and a second B extension section 222B.

[0302] The second bending interval 212A is the interval in which the second signal line 22 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0303] The second signal line 22 extends from the second bending interval 212A in the direction of bending from the second bending interval 212A.

[0304] The second bend interval 212B is the interval from the second signal line 22 extending from the second extension interval 222A in a horizontal direction towards the second extension interval 222A.

[0305] The second signal line 22 extends from the second bend interval 212B in the direction of the bend from the second bend interval 212B.

[0306] like Figure 42 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a third A bending section 213A, a third A extension section 223A, a third A change section 233A, a third B extension section 223B, a third B bending section 213B, and a third C extension section 223C.

[0307] The 3A bending interval 213A is the interval in which the third signal line 23 extends from the vertical interval 100 in a manner that bends in the horizontal direction toward the vertical interval 100.

[0308] The 3A extension interval 223A is the interval in which the third signal line 23 extends from the 3A bending interval 213A in the direction of bending from the 3A bending interval 213A.

[0309] The 3A change interval 233A is the interval in which the position of the third signal line 23 changes when it passes through the third through hole H3.

[0310] The 3B extension interval 223B is the interval in which the third signal line 23 extends from the 3A change interval 233A in the same direction as the 3A extension interval 223A.

[0311] The 3B bending interval 213B is the interval from the 3B extension interval 223B where the third signal line 23 extends in a horizontal direction toward the 3B extension interval 223B.

[0312] The 3C extension interval 223C is the interval in which the third signal line 23 extends from the 3B bending interval 213B in the direction of bending from the 3B bending interval 213B.

[0313] In the first, second, and third embodiments, the thickness of the second horizontal interval 200B may be reduced or a gap may be formed.

[0314] First, an embodiment of the thinning of the second horizontal interval 200B will be described later.

[0315] like Figures 2 to 8 As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first horizontal section 200A and a second horizontal section 200B.

[0316] The first horizontal interval 200A is an interval that extends from the vertical interval 100 and passes through the first through hole H1 and the third through hole H3, and the positions of the first signal line 21 and the third signal line 23 change.

[0317] The second horizontal interval 200B is formed by removing one or more of the first dielectric 11 and the third dielectric 13 to make it thinner than the first horizontal interval 200A.

[0318] like Figures 2 to 8 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention further includes a first sub-dielectric 41, a second sub-dielectric 42, a first side dielectric 61, and a second side dielectric 62.

[0319] The first sub-dielectric 41 is in contact with the first sub-ground 51 on its upper or lower surface, located between the first dielectric 11 and the second dielectric 12.

[0320] The second sub-dielectric 42 is in contact with the second sub-ground 52 on the top or bottom, located between the second sub-dielectric 12 and the third sub-dielectric 13.

[0321] The first dielectric 61 is in contact with the first ground 71 on its upper or lower surface, located above the first dielectric 11.

[0322] The second dielectric 62 is in contact with the second ground 72 on its upper or lower surface, located below the third dielectric 13.

[0323] At this time, as Figure 42 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes the following features.

[0324] In the second horizontal interval 200B, at least one of the first sub-dielectric 41, the second sub-dielectric 42, the first side dielectric 61, and the second side dielectric 62 is removed.

[0325] Next, an embodiment in which the second horizontal interval 200B includes a gap between dielectrics will be described later.

[0326] like Figure 14 as well as Figure 15a , Figure 15b as well as Figure 15c As shown, according to an embodiment of the present invention, the horizontal section 200 of the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 includes a first horizontal section 200A and a second horizontal section 200B.

[0327] The first horizontal interval 200A is an interval extending from the vertical interval 100 and bonded between the first dielectric 11 and the second dielectric 12, and between the second dielectric 12 and the third dielectric 13, by direct hot melt bonding or by using either the welding sheet 80 or the prepreg as a medium.

[0328] The second horizontal interval 200B is an interval that extends from the first horizontal interval 200A and is separated from the first dielectric 11 and the second dielectric 12, as well as from the second dielectric 12 and the third dielectric 13, by means of no thermal fusion bonding or medium bonding.

[0329] like Figure 14 as well as Figure 15a As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention further includes a first sub-dielectric 41, a second sub-dielectric 42, a first side dielectric 61, and a second side dielectric 62.

[0330] The first sub-dielectric 41 is in contact with the first sub-ground 51 on its upper or lower surface, located between the first dielectric 11 and the second dielectric 12.

[0331] The second sub-dielectric 42 is in contact with the second sub-ground 52 on the top or bottom, located between the second sub-dielectric 12 and the third sub-dielectric 13.

[0332] The first dielectric 11 is in contact with the first ground 31 on its upper or lower surface.

[0333] The third dielectric 13 is in contact with the third ground 33 on the top or bottom.

[0334] The first dielectric 61 is in contact with the first ground 71 on its upper or lower surface, located above the first dielectric 11.

[0335] The second dielectric 62 is in contact with the second ground 72 on its upper or lower surface, located below the third dielectric 13.

[0336] In the second horizontal interval 200B, the first dielectric 11 is separated from the first sub-dielectric 41 and the first side dielectric 61.

[0337] In the second horizontal interval 200B, the second dielectric 12 is separated from the first sub-dielectric 41 and the second sub-dielectric 42.

[0338] In the second horizontal interval 200B, the third dielectric 13 is separated from the second sub-dielectric 42 and the second side dielectric 62.

[0339] At this time, the first ground 31, the third ground 33, the first side ground 71, and the second side ground 72 can be as follows: Figure 15aThe image shown includes all, or as shown Figure 15b All shown are excluded, or as shown Figure 15c The example shown includes more than one.

[0340] In addition, although not shown in the figure, the first ground 31, the third ground 33, the first side ground 71 and the second side ground 72 may be formed with grid-shaped openings or with periodic pattern-shaped openings to make them easier to bend in the second horizontal interval 200B, so as to reduce the grounding area.

[0341] Although not illustrated, conductive adhesive or EMI shielding film may be present in contact with any one or more of the areas above and below the second horizontal interval 200B.

[0342] For example, in Figure 5 In the middle, conductive adhesive or EMI shielding film may be in contact with one or more of the following: above the first sub-ground 51 and below the second sub-dielectric 42.

[0343] like Figure 43a , Figure 43b as well as Figure 46 As shown, the flexible circuit board 1 having a vertical section 100 and a horizontal section 200 according to an embodiment of the present invention includes the following features.

[0344] The horizontal interval 200 is set as a pair of symmetries.

[0345] Vertical intervals 100 are provided on both sides of a pair of horizontal intervals 200.

[0346] at this time, Figure 43a as well as Figure 43b It can be Figure 42 The shape of a pair of flexible circuit boards 1 connected by their respective horizontal sections 200.

[0347] in addition, Figure 46 It can be Figure 24 The shape of a pair of flexible circuit boards 1 connected by their respective horizontal sections 200.

[0348] like Figure 44 as well as Figure 45 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes the following features.

[0349] A pair of horizontal sections 200 are vertically folded so that the sides face upward, so that the uppermost signal line passes through the via without changing its position.

[0350] A pair of horizontal sections 200 are vertically folded so that the sides face upward, thereby changing the position of the lowermost signal line through the through-hole, thus adjusting the signal transmission length so that the signal transmission length of the uppermost signal line and the signal transmission length of the lowermost signal line are the same or similar.

[0351] That is, such as Figure 55 As shown, when a pair of horizontal sections 200 are folded vertically so that the sides face upward, the length of the uppermost first signal line 21 bends outward compared to the third signal line 23, so the signal transmission length of the first signal line 21 becomes longer than the signal transmission length of the third signal line 23.

[0352] It can be that the position of the third signal line 23 is changed by passing through the third through hole H3, thereby adding the length of the third through hole H3 to the third signal line 23, thereby adjusting the signal transmission length so that the signal transmission lengths of the first signal line 21 and the third signal line 23 have the same or similar lengths.

[0353] like Figures 47 to 50 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes the following features.

[0354] One of the signal lines whose position changes by passing through a via in one of a pair of horizontal intervals 200 can be kept in the same position by passing through a via in the other of the pair of horizontal intervals 200, thereby allowing the signal transmission length to be adjusted to have the same or similar length as the signal transmission length of the other signal lines.

[0355] For example, such as Figure 47 As shown, in one of a pair of horizontal intervals 200, the third signal line 23 changes position through the third via H3, while the first signal line 21 remains in position through the via. Figure 48 As shown, in the other of a pair of horizontal intervals 200, the third signal line 23 remains in position through the through hole, while the first signal line 21 changes position through the first through hole H1.

[0356] That is, in one of a pair of horizontal intervals 200, when the length A1 of the third through hole H3 is added to the length of the third signal line 23 and the signal transmission length of the third signal line 23 increases, the position of the third signal line 23 remains unchanged in the other pair of horizontal intervals 200, so that the signal transmission length of the third signal line 23 does not increase. For the first signal line 21, which remains unchanged in position in one of the pair of horizontal intervals 200 and whose signal transmission length does not increase, in the other pair of horizontal intervals 200, the length A1 of the first through hole H1 is added to the length of the first signal line 21, so that the signal transmission length can be adjusted so that the signal transmission lengths of the third signal line 23 and the first signal line 21 have the same or similar lengths.

[0357] The length of the first signal line 21 whose position changes through the through hole = the length of the first signal line 21 before its position changes through the through hole + the length A1 of the first through hole H1

[0358] The length of the third signal line 23 whose position changes due to the through-hole = the length of the third signal line 23 before its position changes due to the through-hole + the length A1 of the third through-hole H3

[0359] The length A1 of the first through hole H1 is equal to the length A1 of the third through hole H3.

[0360] The length of the first signal line 21, whose position changes through the via, is equal to the length of the third signal line 23, whose position changes through the via.

[0361] In addition, such as Figure 49 as well as Figure 50 As shown, the position of the first signal line 21 can be changed in one of a pair of horizontal intervals 200, and the position of the third signal line 23 can be changed in the other of the pair of horizontal intervals 200, thereby adjusting the signal transmission length so that the signal transmission length has the same or similar length.

[0362] like Figure 55 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes the following features.

[0363] A pair of horizontal sections 200 are folded vertically so that the sides face upward, thus being configured inside the wireless terminal.

[0364] The bottom of a pair of vertically folded horizontal sections 200 is glued to the wall inside the wireless terminal.

[0365] like Figures 51 to 54 As shown, the flexible circuit board 1 with a vertical section 100 and a horizontal section 200 formed according to an embodiment of the present invention includes the following features.

[0366] Starting around a pair of horizontal intervals 200 where the position of the signal line changes through their respective through-holes, the middle of the pair of horizontal intervals 200 is disposed inside the wireless terminal to pass above or below the battery 5.

[0367] Figure 51 as well as Figure 52 The image shows the area beneath battery 5. Figure 53 as well as Figure 54 The image shows the view above battery 5.

[0368] like Figure 56 As shown, according to an embodiment of the present invention, a flexible circuit board 1 having a vertical section 100 and a horizontal section 200 is disposed inside a wireless terminal so that the horizontal section 200 passes through the hinge of the folded wireless terminal, thereby being effectively used in the action of folding and unfolding the wireless terminal multiple times.

Claims

1. A flexible circuit board having vertical and horizontal sections, characterized in that, The flexible circuit board having vertical and horizontal sections includes: A first dielectric material has a first signal line in contact with it on or below, and has a width that is wider than the first signal line, extending along the extension direction of the first signal line. The second dielectric is located below the first dielectric, and is in contact with the second signal line above or below it. It has a width that is wider than the second signal line and extends along the extension direction of the second signal line. The vertical interval is the interval in which the first signal line and the second signal line are located on the same vertical line and extend parallel to each other; The first horizontal interval is an interval extending from the vertical interval along the same direction, where the position of the first signal line or the second signal line changes due to a through-hole, such that the first signal line and the second signal line are located on the same horizontal line; and The second horizontal interval is an interval that extends from the first horizontal interval with the first signal line and the second signal line on the same horizontal line, and is thinner than the thickness of the first horizontal interval.

2. A flexible circuit board having vertical and horizontal sections, characterized in that, The flexible circuit board having vertical and horizontal sections includes: A first dielectric material has a first signal line in contact with it on or below, and has a width that is wider than the first signal line, extending along the extension direction of the first signal line. The second dielectric is located below the first dielectric, and is in contact with the second signal line above or below it. It has a width that is wider than the second signal line and extends along the extension direction of the second signal line. A third dielectric, located below the second dielectric, is in contact with a third signal line above or below it, has a width that is wider than the third signal line, and extends along the extension direction of the third signal line; The vertical interval is the interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other. The first horizontal interval is an interval extending from the vertical interval along the same direction, where the positions of two or more of the first signal line, the second signal line, and the third signal line change due to through-holes, thereby placing the first signal line, the second signal line, and the third signal line on the same horizontal line; and The second horizontal interval is an interval that extends from the first horizontal interval with the first signal line, the second signal line, and the third signal line located on the same horizontal line, and has a thickness thinner than the first horizontal interval.

3. The flexible circuit board with vertical and horizontal sections as described in claim 2, characterized in that, The second horizontal interval forms a gap between the first dielectric and the second dielectric, and between the second dielectric and the third dielectric.

4. A flexible circuit board having vertical and horizontal sections, characterized in that, The flexible circuit board having vertical and horizontal sections includes: A first dielectric material has a first signal line in contact with it on or below, and has a width that is wider than the first signal line, extending along the extension direction of the first signal line. The second dielectric is located below the first dielectric, and is in contact with the second signal line above or below it. It has a width that is wider than the second signal line and extends along the extension direction of the second signal line. The vertical interval is the interval in which the first signal line and the second signal line are located on the same vertical line and extend parallel to each other; The first horizontal interval is an interval extending from the vertical interval in the same direction, where the position of the first signal line changes as it passes through the first through-hole to contact the top or bottom of the second dielectric, thereby horizontally separating the first signal line from the second signal line; and The second horizontal interval is an interval that extends from the first horizontal interval, separated by the first signal line and the second signal line in the horizontal direction, and is thinner than the thickness of the first horizontal interval.

5. The flexible circuit board with vertical and horizontal sections as described in claim 4, characterized in that, The flexible circuit board having vertical and horizontal sections also includes: A third dielectric, located below the second dielectric, is in contact with a third signal line on its surface or surface, has a width wider than the third signal line, and extends along the extension direction of the third signal line. In the vertical interval, the second signal line and the third signal line are located on the same vertical line, and the second signal line and the third signal line extend in parallel. In the horizontal section, the third signal line changes position through the third through-hole to contact the top or bottom of the second dielectric, thereby separating the third signal line from the second signal line in the horizontal direction.

6. The flexible circuit board with vertical and horizontal sections as described in claim 5, characterized in that, The second horizontal interval is where one or more of the first dielectric and the third dielectric are removed.

7. The flexible circuit board with vertical and horizontal sections as described in claim 6, characterized in that, The flexible circuit board having vertical and horizontal sections also includes: The first sub-dielectric has a first sub-ground contact on its top or bottom, located between the first dielectric and the second dielectric; The second sub-dielectric, having a second sub-ground contact on its top or bottom, is located between the second sub-dielectric and the third sub-dielectric; The first side dielectric, which is in contact with the first side ground on or below, is located above the first dielectric; The second dielectric, which is in contact with a second ground on its top or bottom, is located below the third dielectric. In the second horizontal interval, at least one of the first sub-dielectric, the second sub-dielectric, the first side dielectric, and the second side dielectric is removed.

8. The flexible circuit board with vertical and horizontal sections as described in claim 5, characterized in that, The first horizontal interval refers to the bonding between the first dielectric and the second dielectric, and between the second dielectric and the third dielectric, through direct thermal fusion bonding or by using either the weld sheet or the prepreg as a medium. The second horizontal interval is when the first dielectric and the second dielectric, as well as the second dielectric and the third dielectric, are separated without the thermal fusion bonding or the bonding of the dielectric.

9. The flexible circuit board with vertical and horizontal sections as described in claim 8, characterized in that, The flexible circuit board having vertical and horizontal sections also includes: The first sub-dielectric has a first sub-ground contact on its top or bottom, located between the first dielectric and the second dielectric; The second sub-dielectric, having a second sub-ground contact on its top or bottom, is located between the second sub-dielectric and the third sub-dielectric; The first side dielectric, which is in contact with the first side ground on or below, is located above the first dielectric; The second dielectric, which is in contact with a second ground on its top or bottom, is located below the third dielectric. In the second horizontal interval, the first dielectric is separated from the first sub-dielectric and the first side dielectric. In the second horizontal interval, the third dielectric is separated from the second sub-dielectric and the second side dielectric.

10. The flexible circuit board with vertical and horizontal sections according to claim 9, characterized in that, In the second horizontal interval, the second dielectric is separated from both the first sub-dielectric and the second sub-dielectric.

11. The flexible circuit board with vertical and horizontal sections as described in claim 5, characterized in that, The horizontal range includes: The first horizontal interval is the interval in which the first through hole and the third through hole are formed; The second horizontal interval is the interval in which the positions of the first signal line and the third signal line change due to the passage through the first through-hole and the third through-hole. The flexible circuit board having vertical and horizontal sections also includes: The first ground is formed around the first signal line, which is in contact with the first dielectric in the vertical and first horizontal intervals. The second ground is formed around the second signal line, which contacts the second dielectric in the vertical section and the first horizontal section. The third ground is formed around the third signal line, which contacts the third dielectric in the vertical interval and the first horizontal interval.

12. The flexible circuit board with vertical and horizontal sections as described in claim 11, characterized in that, The flexible circuit board having vertical and horizontal sections also includes: A grounding via is vertically penetrated to electrically connect the first ground, the second ground, and the third ground around the area where the first via and the third via are formed.

13. A flexible circuit board having vertical and horizontal sections, characterized in that, The flexible circuit board having vertical and horizontal sections includes: A first dielectric material has a first signal line in contact with it on or below, and has a width that is wider than the first signal line, extending along the extension direction of the first signal line. The second dielectric is located below the first dielectric, and is in contact with the second signal line above or below it. It has a width that is wider than the second signal line and extends along the extension direction of the second signal line. A third dielectric, located below the second dielectric, is in contact with a third signal line above or below it, has a width that is wider than the third signal line, and extends along the extension direction of the third signal line; The vertical interval is the interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other. The first horizontal interval is an interval extending in the same direction from the vertical interval, where the second signal line and the third signal line change position by passing through the second and third through holes respectively to contact the top or bottom of the first dielectric, thereby being separated from the first signal line in a horizontal direction; and The second horizontal interval is an interval that extends from the first horizontal interval with the first signal line, the second signal line, and the third signal line separated in the horizontal direction, and has a thickness thinner than the thickness of the first horizontal interval.

14. A flexible circuit board having vertical and horizontal sections, characterized in that, The flexible circuit board having vertical and horizontal sections includes: A first dielectric material has a first signal line in contact with it on or below, and has a width that is wider than the first signal line, extending along the extension direction of the first signal line. The second dielectric is located below the first dielectric, and is in contact with the second signal line above or below it. It has a width that is wider than the second signal line and extends along the extension direction of the second signal line. A third dielectric, located below the second dielectric, is in contact with a third signal line above or below it, has a width that is wider than the third signal line, and extends along the extension direction of the third signal line; The vertical interval is the interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other. The first horizontal interval is an interval extending in the same direction from the vertical interval, where the positions of the first signal line and the second signal line change as they pass through the first and second through holes respectively to contact the top or bottom of the third dielectric, thereby being separated from the third signal line in a horizontal direction; and The second horizontal interval is an interval that extends from the first horizontal interval with the first signal line, the second signal line, and the third signal line separated in the horizontal direction, and has a thickness thinner than the thickness of the first horizontal interval.

15. A flexible circuit board having vertical and horizontal sections, characterized in that, The flexible circuit board having vertical and horizontal sections includes: A first dielectric material has a first signal line in contact with it on or below, and has a width that is wider than the first signal line, extending along the extension direction of the first signal line. The second dielectric is located below the first dielectric, and is in contact with the second signal line above or below it. It has a width that is wider than the second signal line and extends along the extension direction of the second signal line. A third dielectric, located below the second dielectric, is in contact with a third signal line above or below it, has a width that is wider than the third signal line, and extends along the extension direction of the third signal line; A first sub-dielectric, located between the first dielectric and the second dielectric, has a width corresponding to that of the second dielectric and extends along the extension direction of the second dielectric; The second sub-dielectric is located between the second dielectric and the third dielectric, has a width corresponding to the second dielectric, and extends along the extension direction of the second dielectric; The vertical interval is the interval in which the first signal line, the second signal line, and the third signal line are located on the same vertical line and extend parallel to each other. The first horizontal interval is an interval extending from the vertical interval in the same direction, where the positions of the first signal line and the third signal line change through the first and third through holes respectively to contact the top or bottom of the first sub-dielectric or the top or bottom of the second sub-dielectric, thereby being separated from the second signal line in a horizontal direction; and The second horizontal interval is an interval that extends from the first horizontal interval with the first signal line, the second signal line, and the third signal line separated in the horizontal direction, and has a thickness thinner than the thickness of the first horizontal interval.

16. The flexible circuit board with vertical and horizontal sections according to claim 5, characterized in that, In the horizontal interval, the horizontal width of the first dielectric, the second dielectric, and the third dielectric is greater than the width of the first signal line and the third signal line separated in the horizontal direction.

17. The flexible circuit board with vertical and horizontal sections as described in claim 5, characterized in that, The horizontal range includes: The first bending interval is the interval in which the first signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The first A extension interval is the interval in which the first signal line extends from the first A bending interval in the direction of bending through the first A bending interval; The first B bending section is the section in which the first signal line extends from the first A extension section in a horizontal direction towards the first A extension section; The first B extension interval is the interval in which the first signal line extends from the first B bending interval in the direction of bending through the first B bending interval; The first A change range is the range in which the position of the first signal line changes through the first through hole to contact the upper or lower part of the second dielectric. The first extended interval C is the interval in which the first signal line extends from the first changed interval A in the same direction as the first extended interval B.

18. The flexible circuit board with vertical and horizontal sections as described in claim 17, characterized in that, The horizontal range also includes: The second extended interval is the interval in which the second signal line extends from the vertical interval in the same direction as the vertical interval.

19. The flexible circuit board with vertical and horizontal sections according to claim 18, characterized in that, The horizontal range also includes: The 3A bending interval is the interval in which the third signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The third extension interval is the interval in which the third signal line extends from the third bending interval in the direction of bending through the third bending interval; The 3B bending interval is the interval in which the third signal line extends from the 3A extension interval in a horizontal direction towards the 3A extension interval; The third extension interval is the interval in which the third signal line extends from the third bending interval in the direction of bending through the third bending interval; The 3A change range is the range in which the position of the third signal line changes through the third through hole to contact the upper or lower part of the second dielectric. The 3C extension interval is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3B extension interval.

20. The flexible circuit board with vertical and horizontal sections according to claim 5, characterized in that, The horizontal range includes: The first bending interval is the interval in which the first signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The first B bending section is the section in which the first signal line extends from the first A bending section in a horizontal direction in the direction of bending from the first A bending section; The first B extension interval is the interval in which the first signal line extends from the first B bending interval in the direction of bending through the first B bending interval; The first A change range is the range in which the position of the first signal line changes through the first through hole to contact the upper or lower part of the second dielectric. The first C extension interval is the interval in which the first signal line extends from the first A change interval in the same direction as the first B extension interval; The second extended interval is the interval in which the second signal line extends from the vertical interval in the same direction as the vertical interval; The 3A bending interval is the interval in which the third signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The 3B bending interval is the interval in which the third signal line extends from the 3A bending interval in a horizontal direction, bending in the direction of the bending of the 3A bending interval. The third extension interval is the interval in which the third signal line extends from the third bending interval in the direction of bending through the third bending interval; The 3A change range is the range in which the position of the third signal line changes through the third through hole to contact the upper or lower part of the second dielectric. The 3C extension interval is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3B extension interval.

21. The flexible circuit board with vertical and horizontal sections as described in claim 5, characterized in that, The horizontal range includes: The first bending interval is the interval in which the first signal line extends from the vertical interval in such a way that it bends in the horizontal direction of the vertical interval; The first A extension interval is the interval in which the first signal line extends from the first A bending interval in the direction of bending through the first A bending interval; The first A change interval is the interval in which the position of the first signal line changes as it passes through the first through hole; The first B extension interval is the interval in which the first signal line extends from the first A change interval in the same direction as the first A extension interval.

22. The flexible circuit board with vertical and horizontal sections formed according to claim 21, characterized in that, The horizontal range includes: The second signal line is a section that extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The second extension interval 2A is the interval in which the second signal line extends from the second bending interval 2A in the direction of bending through the second bending interval 2A.

23. The flexible circuit board with vertical and horizontal sections according to claim 5, characterized in that, The horizontal range includes: The 3A bending interval is the interval in which the third signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The third extension interval is the interval in which the third signal line extends from the third bending interval in the direction of bending through the third bending interval; The 3A change interval is the interval in which the position of the third signal line changes as it passes through the third through hole; The 3B extension interval is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3A extension interval.

24. The flexible circuit board with vertical and horizontal sections as described in claim 5, characterized in that, The horizontal range includes: The first bending interval is the interval in which the first signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The first A extension interval is the interval in which the first signal line extends from the first A bending interval in the direction of bending through the first A bending interval; The first A change interval is the interval in which the position of the first signal line changes as it passes through the first through hole; The first B extension interval is the interval in which the first signal line extends from the first A change interval in the same direction as the first A extension interval; The first B bending interval is the interval in which the first signal line extends from the first B extension interval in a manner that bends in the horizontal direction toward the first B extension interval; The first extended interval C is the interval in which the first signal line extends from the first bent interval B in the direction of bending through the first bent interval B.

25. The flexible circuit board with vertical and horizontal sections formed according to claim 24, characterized in that, The horizontal range includes: The second bending interval is the interval in which the second signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The second extension interval is the interval in which the second signal line extends from the second bending interval in the direction of bending through the second bending interval; The second B bending section is the section in which the second signal line extends from the second A extension section in a horizontal direction towards the second A extension section; The second extension interval (2B) is the interval in which the second signal line extends from the second bend interval (2B) in the direction of the bend caused by the second bend interval (2B).

26. The flexible circuit board with vertical and horizontal sections according to claim 5, characterized in that, The horizontal range includes: The 3A bending interval is the interval in which the third signal line extends from the vertical interval in a manner that bends in the horizontal direction toward the vertical interval; The third extension interval is the interval in which the third signal line extends from the third bending interval in the direction of bending through the third bending interval; The 3A change interval is the interval in which the position of the third signal line changes as it passes through the third through hole; The 3B extension interval is the interval in which the third signal line extends from the 3A change interval in the same direction as the 3A extension interval; The third B bending interval is the interval in which the third signal line extends from the third B extension interval in a manner that bends in the horizontal direction toward the third B extension interval; The third extension interval is the interval in which the third signal line extends from the third bending interval in the direction of bending through the third bending interval.

27. The flexible circuit board with vertical and horizontal sections according to claim 1, characterized in that, Conductive adhesive or EMI shielding film is present in contact with one or more of the areas above and below the second horizontal interval.

28. The flexible circuit board with vertical and horizontal sections according to claim 1, characterized in that, The horizontal intervals are set as a pair of symmetrical intervals. The vertical intervals are provided on both sides of the pair of horizontal intervals.

29. The flexible circuit board with vertical and horizontal sections formed according to claim 28, characterized in that, Starting around the point where the position of the signal line changes through its respective through-hole, the middle of the pair of horizontal intervals is disposed inside the wireless terminal to pass above or below the battery.

30. The flexible circuit board with vertical and horizontal sections formed according to claim 29, characterized in that, One of the signal lines whose position changes by passing through a via in one of the pair of horizontal intervals, but whose position does not change by passing through a via in the other of the pair of horizontal intervals, is adjusted to have the same or similar signal transmission length as the other signal lines.

31. The flexible circuit board with vertical and horizontal sections formed according to claim 28, characterized in that, The pair of horizontal sections are folded vertically so that the sides face upward and are configured inside the wireless terminal. The lower part of the pair of horizontal sections that are vertically folded is adhered to the wall inside the wireless terminal.

32. The flexible circuit board with vertical and horizontal sections formed according to claim 31, characterized in that, The pair of horizontal sections are folded vertically so that the sides face upwards, so that the uppermost signal line passes through the via without changing its position. The pair of horizontal sections are folded vertically so that the sides face upwards, thereby changing the position of the lowermost signal line as it passes through the via. This adjusts the signal transmission length so that the signal transmission length of the uppermost signal line and the signal transmission length of the lowermost signal line are the same or similar.

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