DISPLAY, ELECTRONIC UNIT, AND SUPPORTING SUBSTRATE BACKGROUND [0001] The present disclosure relates to a thin and flexible display such as a socalled electronic paper. [0002] In recent years, manufacturers have developed various kinds of ultra-thin displays called electronic paper (e-paper) (for example, Japanese Unexamined Patent Application Publication Nos. 2010-218102 and 2010-157060). For example, Japanese Unexamined Patent Application Publication No. 2010-218102 proposes a socalled electronic book (e-book) utilizing such an ultra-thin display as a book. SUMMARY [0003] Since the above-mentioned displays are thin and highly flexible, it is possible to physically bend and twist the above-mentioned displays. This makes it possible to realize various kinds of user interfaces such as those in which a sensor configured to detect bending by a user and the like is incorporated to switch display content in response to such a user operation. In such displays, in order to enhance operability, it is desirable that a correlation between a user operation and display content to be actually changed be high, and the user operation and the display content to be actually changed be easily and intuitively connected. [0004] It -is desirable to provide a display and an electronic unit that realize excellent operability when display content is switched based on a user operation 1 SP308090 associated with a variation in a physical form, and a supporting substrate employed in such a display. [0005] According to an embodiment of the present disclosure, there is provided a , _* ^ ^display-including a supporting substrate having flexibility; and a display section provided on the supporting substrate. The flexibility of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof. [0006] According to an embodiment of the present disclosure, there is provided an electronic unit with a display. The display includes a supporting substrate having l flexibility; and a display section provided on the supporting substrate. The flexibility * of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof. [0007] According to an embodiment of the present disclosure, there is provided a supporting substrate configured to support a display section and having flexibility. The flexibility of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof. [0008] In the display and the electronic unit according to the embodiments of the * present disclosure, since the supporting substrate has flexibility, and in the first region provided at at least a portion on a side of an edge in a plane thereof, the flexibility of the supporting substrate gradually increases toward the edge, a user allowed to bend { and twist a local portion on the edge side of the whole display with ease. [0009] According to the display and the electronic unit according to the embodiments .of the present disclosure, since the supporting substrate has flexibility, and in the first region provided at at least a portion on a side of an edge in a plane 2 SP308090 thereof, the flexibility of the supporting substrate gradually increases toward the edge, a user is allowed to readily bend and twist a local portion on the edge side of the whole display. Consequently, when display content is switched based on a user ..-.. *.«. -^operation associated with a variation in a physical form,'- excellent operability is realized. [0010] It is to be understood, that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS [0011] The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the specification, serve to explain the principles of the techndlogy. [0012] FIGs. 1A and IB are perspective views each schematically showing a model configuration of a display (electronic book) according to an embodiment of the present disclosure, and FIGs. 1A and IB illustrate an opened state and a closed state (folded state), respectively. [0013] FIG. 2 is an exploded perspective view of the display illustrated in FIGs. lAandlB. [0014] FIG. 3 is a plan view of the display illustrated in FIGs. 1A and IB. [0015] FIG. 4 is a bottom view of the display illustrated in FIGs. 1A and IB. - - [0016] FIG. 5 is a front view (or a back view) of the display illustrated in FIGs. 3 SP308090 lAandlB. [0017] FIG. 6 is a side view (right side view, left side view) of the display illustrated in FIGs. 1A and IB. - *.* ~f0018] FIG. 7 is a view showing an exemplary configuration (articulated coupling mechanism) of a hinge section illustrated in FIGs. 1A and IB. [0019] FIG. 8 is a schematic view showing region segmentation used to explain a thickness variation of a supporting substrate. [0020] FIG. 9 schematically shows the thickness variation of the supporting substrate. [0021] FIGs. 10A and 10B are enlarged sectional views each showing a vicinity of a boundary between regions of the supporting substrate. [0022] FIG. 11 is a functional block diagram of the display illustrated in FIGs. 1A and IB. [0023] > FIGs. 12A to 12C each schematically show an exemplary user operation. [0024] FIGs. 13 A to 13C each schematically show ahother exemplary layout of a first region. [0025] FIGs. 14A and 14B are schematic views used to explain other exemplary electronic units. / DETAILED DESCRIPTION [0026] Referring to the figures, an embodiment of the present disclosure will be described in detail. Description will be given in the following order. — 4 SP308090 1. Embodiment (exemplary electronic book including supporting substrate having predetermined thickness variation) 2. Modification (another exemplary layout of first region (thin-walled portion) of ..*_•. Supporting substrate) [Embodiment] [0027] FIGs. 1A and IB each schematically show a perspective configuration of a display (electronic book 1) according to an embodiment of the present disclosure. FIG. 2 is an exploded perspective view of the electronic book 1 (one side portion). FIG. 3 is a plan view of the electronic book 1, FIG. 4 is a bottom view, FIG. 5 is a front view (similar to a back view), and FIG. 6 is a right side view (similar to a left •"; side view). It should be noted that, a hinge section 12 is not shown in FIG. 3 to FIG. 6 . '• [0028] < The electronic book 1 is a thin and flexible display formed with use of a flexible material as a component. In the electronic bodk 1, the whole unit may be closed (folded) or opened as is the case with a real book made by putting together a plurality of papers (pages). A user is allowed to browse content (a-page or the like of a book, for example) displayed on the electronic book 1 witn a feeling like actually reading a book. [Structure] j i [0029] The electronic book 1 is provided with, on a supporting substrate 10, a laminated body 11 including a display section 15, and, at a portion corresponding to a "spine" (spine- la) of a book, the hinge section 12. On the bottom face side (a side that faces outside in a closed state) of the electronic book 1, a cover 13 is provided, 5 SP308O9O and the top face side (a side that faces inside in a closed state) thereof is covered with a protect sheet 14. [0030] As a base material of the electronic book 1, the supporting substrate 10 _,..*_* .^supports the laminated body .11 and has flexibility. The flexibility of the supporting substrate 10 differs among regions thereof. In the present embodiment, the thickness of the supporting substrate 10 varies in a plane thereof, and this results in the variation of flexibility. Detailed configuration of the supporting substrate 10 will be described later. (Laminated Body 11) [0031] As illustrated in FIG. 2, for example, the laminated body 11 has a structure in which a system board layer 17, a driving circuit section 18, a detection section 16, and the display section 15 are laminated in order from the supporting substrate 10 side. Each of these components is configured of a flexible material, and flexibility is obtained? when these components are laminated. It is to be noted that, while an exemplary case where the laminated body 11 is provided^on two faces, a left side face and a right side face, of the electronic book 1 in an opened state is illustrated in the present embodiment, the laminated body 11 may be provided on only one of the left side face and the right side face. [0032] The display section 15 is a display panel that displays an image based on an image signal, and for example, has a structure in which an organic electro luminescence (EL) device, a liquid crystal display device, an electrophoretic device, or the like is sandwiched by a resin film of a plastic or the like. [0033] The detection section 16 detects an operation (operation performed mainly along a Z direction) of bending, pushingly moving, or the like by a user, and 6 SP308090 specifically, includes a bending sensor 16b. The bending sensor 16b is configured of, for example, an acceleration sensor, a force sensor, a pressure sensor, a deformation sensor, a gyro sensor, or the like. ...*_* ,[0034] The detection section 16 also includes, in addition to the bending sensor 16b, a location sensor 16a, and is capable of detecting touch input (input using a stylus, finger(s), hand(s), or the like) by a user. The location sensor 16a detects a position touched by a user as a two-dimensional position coordinate of an X direction and a Y direction. Examples of the location sensor 16a include a pressure-sensitive sensor, a two-dimensional tracking sensor, a two-dimensional touch sensor, a mesh sensor, and one utilizing a capacitance system. It should be noted that, the location sensor 16a is preferably provided in an upper layer of the display section 15. With sensing in three axis directions of X, Y, and Z using the location sensor 16a and the bending sensor 16b, it is possible to detect a location, a degree, and the like of a bending operation by a user. Tt should be noted that, the configuration of the detection section 16 is not limited to the combination of the location sensor 16a and the bending sensor 16b, and any three-axis sensors may be used. [0035] In the system board layer 17, for example, a system board on which electronic parts are mounted, a hard disk drive (HDD), a cooling fan, and the like are disposed. On the system board, for example, electronic parts including a central processing uiyt (CPU), a main memory, a chipset, control circuits for various kinds of driving, and the like are mounted. The hard disk drive is connected to a connector terminal of the system board, and is configured to include therein a hard disk. The hard disk drive reads and writes information in the hard disk. The cooling fan cools a CPU mounted on the system board and other heating devices. 7 SP308090 [0036] The driving circuit section 18 is a circuit section including a thin film transistor (TFT) configured to drive each of the display section 15 and the detection section 16. Examples of the TFT include an organic TFT. * ^ J0037] The cover 13 is. an exterior member of the electronic book 1, and is configured of a flexible resin film. In the present embodiment, the cover 13 is attached to the supporting substrate 10 in such a manner as not to cover the whole surface of the supporting substrate 10, thereby exposing a raised portion (a portion near the vertex of the fold) of the spine la, for example. In other words, as illustrated in FIG. 5, a pair of the covers 13 is provided so as to project to both sides from a tapered face of the spine la of the supporting substrate 10. Each cover 13 is bonded at a part of a region thereof facing the supporting substrate 10. Specifically, each cover 13 is bonded at only both end portions thereof corresponding to two sides along the Y direction, and is not bonded to the supporting substrate 10 in a region between the both end portions. With this configuration, the cover 13 is provided in such a manner that an appropriate tension is maintained (or that excessive slackness is prevented) in a state where the electronic book 1 is opened, and the supporting substrate 10 is not folded but stretched (or in a state where the surface of the supporting substrate 10 has an angle of approximately 180 degrees). [0038] The protect sheet 14 protects the display section 15, and forms a display face of the electronic book 1. The protect sheet 14 is bonded to the supporting substrate 10 so as to cover the whole surface thereof, and is configured of a flexible resin film having transparency for display light. (Hinge Section 12) [0039] The hinge section 12 is provided at a portion (second region D2 described 8 SP308090 later) corresponding to the spine la of the supporting substrate 10, and desirably, the hinge section 12 is a curvature restriction hinge capable of maintaining a predetermined curvature regardless of the folding angle of the supporting substrate 10 --.*.«. -,(or the electronic book 1), for example. An exemplary configuration of the hinge section 12 will be described below. [0040] FIG. 7 is an enlarged view of a part of the hinge section 12. Referring to FIG. 7, for example, the hinge section 12 includes an articulated coupling mechanism 4 at an end portion of a frame body 5 A configured to fix the hinge section 12 on the supporting substrate 10. The articulated coupling mechanism 4 includes a plurality of pairs of coupling mechanisms 4A. Each pair of coupling mechanisms 4A face each other at both ends of the spine la of the electronic book 1 (both ends in the longitudinal direction of the second region D2). Each coupling mechanism 4A is fitted to a hollow coupling member 4B provided coaxially along the turning axis of the coupling mechanism 4A. It is to be noted that, for simplification, FIG. 7 illustrates only one of the pair of articulated coupling biechanisms 4A. Coupling plates 21 to 28 turnably coupled to one another are attached to the coupling mechanisms 4A. [0041] The coupling plate 21 is screw-fixed to the frame body 5 A by a screw 30. The coupling plate 21 includes a turning axis XI. The axis diameter of the coupling plate 21 around the turning axis XI is 3 mm to 5 mm for example. The coupling plate 22 has turning axes XI and X2 at both end portions thereof, and overlaps an internal side of the coupling plate 21 with the turning axis XI of the coupling plate 21 and me turning axis XI of the coupling plate 22 being-matched. The coupling plate i 21 and the coupling plate 22 are turnably coupled together by a coupling pin 32 9 SP308090 through a pair of rings 31 provided on external sides of the coupling plate 21 and the coupling plate 22. The coupling plates 23 to 27 each have a form similar to that of the coupling plate 22. -*.«. .,|*0042] The coupling plate 23 has turning axes X2 and'X3 at both end portions thereof. The coupling plate 23 overlaps an external side of the coupling plate 22 with the turning axis X2 of the coupling plate 22 and the turning axis X2 of the coupling plate 23 being matched. The coupling plate 22 and the coupling plate 23 are turnably coupled together by a coupling pin 34 through a pair of rings 33 provided on external sides of the coupling plate 22 and the coupling plate 23. The coupling plates 24 to 28 are also turnably coupled in a similar manner. As described above, the coupling plates 21, 23, 25, and 27 are coupled to the coupling plates 22, 24, 26, and 28 so as to be located outward of the coupling plates 22, 24, 26, and 28. In other words, in the articulated coupling mechanism 4A, the coupling plates 21 to 28 are coupled in a staggered manner to thus be arranged in two rows. The coupling plates \ - . 5 21, 23, 25, and 27 in the first row are arranged on an external side of the width X direction of the main body portion 3, and the coupling plates 22, 24, 26, and 28 in the second row are arranged on an internal side of the width direction of the main body portion 3. It should be noted that the example in which the rings 31, 33, and 35 are provided has been described, but such rings may not be arranged as appropriate. The articulated coupling mechanism 4 includes an interlock mechanism (gear) configured j to interlock the coupling plates 21 to 28. [0043] The coupling plate 21 includes a plurality of gears 41 on a circumferential surface along a turning direction thereof. The plurality of gears 41 protrudes toward - •- the coupling plate 23 side. An external surface 41A of each of the gear 41 is 10 SP308090 chamfered. The coupling plate 23 includes gears 42 that engage with the gears 41 of the coupling plate 21, on a circumferential surface along a turning direction thereof. In other words, the coupling plates 21 and 23 that are adjacent to each other each have ...*_„, -Jhe circumferential surface. along the turning direction, "and the circumferential surfaces are formed with the gears 41 and 42 that are engaged with each other. Similarly, gears 43 of the coupling plate 22 and gears 44 of the coupling plate 24 are engaged with each other. Gears 45 of the coupling plate 23 and gears 46 of the coupling plate 25 are engaged with each other. Gears 47 of the coupling plate 24 and ; gears 48 of the coupling plate 26 are engaged with each other. Gears 49 of the i coupling plate 25 and gears 50 of the coupling plate 27 are engaged with each other. Gears (not shown) of the coupling plate 26 and gears 51 of the coupling plate 28 are engaged with each other. These gears 41 to 51 function as an interlock mechanism and interlock the coupling plates 21 to 28. [0044] \ By employing the articulated coupling mechanism 4 including the above- \ ' ' i mentioned coupling mechanism 4A and the interlocking mechanism in the hinge section 12, it is possible to maintain a predetermined curvature of a curved shape of the spine la regardless of the folding angle (degree of opening) of the electronic book 1. In addition, it is possible to realize a smooth opening/closing operation without load. In the supporting substrate 10 described below, a portion abutting the hinge section 12 (a portion corresponding to the second region D2) is preliminarily formed i to have a curved shape (a curved shape 10B described later) matching the curved shape of the hinge section 12. (Supporting Substrate 10) - , - — [0045] As described above, the thickness of the supporting substrate 10 varies in 11 SP308090 the plane thereof, and the supporting substrate 10 may be segmented into three main regions which are different in thickness (the first region Dl, the second region D2, and a third region D3). Specifically, as illustrated in FIG. 8, a planar form (XY-plane _.,*„. Jbrm) of the supporting substrate 10 is a rectangular form, and the first region Dl corresponds to at least a part of a region on the edge side of the rectangular form (here, the whole edge region other than the portion overlapping the second region described later). The second region D2 is a region that extends so as to divide (in this instance, bisect) the rectangular planar form, and corresponds to the spine la. The third region D3 is a region sandwiched (surrounded) by the first region Dl and the second region D2. I [0046] Specifically, in the first region Dl, the second region D2, and the third region D3, the thickness is gradually increased from the second region D2 toward the i third region D3, and is; gradually decreased from the third region D3 toward the first region Dl, as illustrated in FIG. 9. Here, FIGs. 10A and 10B each illustrate an enlarged view of a vicinity of the boundary between the regions. It is to be noted that, FIG. 10A is a sectional view taken along line I-I of FIG. 8, and FIG. 1 OB is a sectional view taken along line II-II of FIG. 8. As illustrated in FIG. 10A, in the second region D2, the thickness t2 thereof is smaller than the thickness t3 of the third region D3 adjacent to the second region D2 (t2 forms such as a square form or other polygonal forms, a circular form, and an elliptical form may also be adopted. [0070] Further, while, in the above-mentioned embodiment and so forth, a case in : - i •••. . _ - , » which the region corresponding to the spine la of the electronic book 1 (the second region D2 of the supporting substrate 10) is extendedly formed so as to bisect the supporting substrate 10 is exemplified, the form of the second region D2 is not limited thereto. For example, the second region D2 may be formed to extend to either a j region closer to the right side or left side of the supporting substrate 10. In other j words, such a-configuration that one side of the supporting substrate is exposed from 20 SP308090 the other side in a folded state may also be adopted. In addition, the number of the second region D2 is not limited to one, and may be plural. [0071] Additionally, while, in the above-mentioned embodiment and so forth, an ..-. *_* -electronic book is described as an example of the display or the electronic unit of the embodiment of present disclosure, the display or the electronic unit of the [ embodiment of the present disclosure may also be employed in other electronic units i such as various kinds of mobile units (note type personal computers (PCs), mobile j audio players, mobile phones, personal digital assistants (PDAs), and the like). In I i addition, the display or the electronic unit of the embodiment of the present disclosure | may be used not only as a book reader, but also as any of other displays and electronic { units with which a music player, a movie player, a picture viewer, a map application, a ] web browser, or the like may be browsed. ! [0072] In addition, while the hinge section attached to a part of the supporting j substrate'Is provided to the electronic book 1 so that the electronic book 1 is foldable, ; \ • i \ • j it is not absolutely necessary to provide the hinge section 12. If the supporting substrate 10 is so formed that the thickness thereof is locally reduced in the second region D2, then the second region D2 is readily bent compared to other portions, and J therefore it is possible to open and close the electronic book with the second region ? serving as the spine portion thereof It should be noted, however, that, the f opening/closing action may be more smoothly performed when the hinge section 12 is i | adopted. i [0073] Further, the supporting substrate of the embodiment of the present j disclosure does not necessarily need to be foldable, and as illustrated in FIG. 14A for I example, a display or an electronic unit of so-called tablet-type in which the j 21 SP308090 supporting substrate 10 is formed in a single plate form is also applicable. In this case, it is only necessary to form a structure in which the thickness of at least a part of an end portion is reduced relative to that of a center portion. In addition, as _. *^ .* illustrated in FIG. 14B for example, the supporting substrate 10 may also be formed in a band shape attachable to arm or the like, and in this case, it is only necessary that, for example, an image is displayed on a side face thereof, and the thickness of both end portions in the width direction of the supporting substrate 10 is reduced (see a sectional view taken along line I-I). With this structure, when an inputting operation is performed in such a manner that both ends in the width direction of the supporting substrate 10 are held (pinched) by fingers, operability is improved. Further, although | not shown in the figures, the above-described foldable, or tablet-type display or electronic unit may also be configured in such a manner that other units such as a j keyboard may be connected thereto. [ [0074] < It is to be noted that the display and the electronic unit according to the [ embodiments of the present disclosure may be configured as described in the j following (1) to (18). (1) A display including: a supporting substrate having flexibility; and a display section provided on the supporting substrate, wherein the flexibility of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof. (2) The display according to (1), wherein, in the first region, a thickness of the supporting substrate gradually decreases toward the edge. (3) The display according to (1) or (2), wherein 22 SP308090 the supporting substrate is foldable in whole when the supporting substrate is folded in a second region, the second region extending in one direction and dividing the plane, and * -»•••' > - . '. } -'-•*-* •* the second region is smaller in thickness than a nearby region thereof. (4) The display according to (3), wherein the supporting substrate includes a third region between the first region and the second region, in a vicinity of a boundary between the second region and the third region, the thickness of the supporting substrate gradually increases from the second region I toward the third region, and in a vicinity of a boundary between the third region and the first region, the | thickness of the supporting substrate gradually decreases from the third region toward " f the first region. . f (5) The display according to any one of (1) to (4), wherein the supporting [ substrate includes, in a vicinity of the edge in the first region thereof, a taper whose ; I thickness is decreased toward the edge to form an inclination. (6) The display according to (3) or (4), further including a hinge section in I contact with the second region of the supporting substrate. (7) The display according to (6), wherein the hinge section has a curved shape curved at a constant curvature regardless of an folding angle of the supporting substrate, and the supporting substrate is formed to have a curved shape corresponding to the curved shape f the hinge section in the second region. (8) The display according to any one of (1) to (7), wherein the supporting 23 j SP308090 I - # substrate is integrally formed. (9) The display according to (8), wherein the supporting substrate is made of I an elastomer. • -..'.* - (10) The display according to any one of (1) to (9), wherein [ the supporting substrate has a planar form of a square form, and the first region is a region corresponding to one or more sides of the square [ form. I (11) The display according to any one of (1) to (10), wherein the supporting substrate has a planar form of a square form, and the first region is a region corresponding to one or more corner portions of the square form. j I (12) The display according to any one of (3), (4), and (6), wherein I the supporting substrate has a planar form of a square form, and the second region is a region which is extendedly formed to bisect the square { form. v [ (13) The display according to any one of (1) to (12), further including a [ detection section laminated on the supporting substrate together with the display | sectioned configured to detect a local deflection of the supporting substrate. f -^ i (14) The display according to (13), further including a display switching f section configured to switch content displayed on the display section, based on a result j i j of a detection by the detection section, wherein { the display switching section performs an image display corresponding to page I turning or scrolling on the display section when the detection section has detected a " " deflection in the first region of the supporting substrate. I 24 I I ii i j i 1 ! I s SP308090 | (15) The display according to any one of (1) to (14), wherein the display section includes an organic electroluminescence device, a liquid crystal device, or an electrophoretic device. | i % - • " • • • - i -•-•*-• -* (16) The display according to any one of (1) to (15), further including an j organic thin film transistor as a drive device of the display section on the supporting j substrate. , j (17) An electronic unit with a display, the display including: i a supporting substrate having flexibility; and a display section provided on the supporting substrate, wherein ; the flexibility of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof. (18) A supporting substrate configured to support a display section and having j i flexibility, the flexibility of the supporting substrate gradually increasing toward an I • - . . i edge in a first region provided at at least a portion on a side of the edge in a plane thereof ' j [0075] The present disclosure contains subject matter related to that disclosed in { Japanese Priority Patent Application JP 2011-205986 filed in the Japan Patent Office j on September 21, 2011, the entire content of which is hereby incorporated by ! reference. j [0076] It should be understood by those skilled in the art that various j modifications, combinations, sub-combinations, and alterations may occur depending } on design requirements and other factors insofar as they are within the scope of the } appended claims or the equivalents thereof What is claimed is: 1. A display comprising: a supporting substrate having flexibility; and • '•'-"• * a display section provided on the supporting substrate, wherein the flexibility of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof. 2. The display according to claim 1, wherein, in the first region, a thickness of the supporting substrate gradually decreases toward the edge. 3. The display according to claim 2, wherein the supporting substrate is foldable in whole when the supporting substrate is folded in a second region, the second region extending in one direction and dividing the plane,'and - the second region is smaller in thickness than a nearby region thereof 4. The display .according to claim 3, wherein Jthe supporting substrate includes a third region between the first region and the second region, in a vicinity of a boundary between the second region and the third region, the thickness of the supporting substrate gradually increases from the second region toward the third region, and in a vicinity of a boundary between the third region and the first region, the thickness of the supporting substrate gradually decreases from the third region toward 26 SP30809O the first region. 5. The display according to claim 1, wherein the supporting substrate includes, in •'-•• 'a vicinity of the edge in the first region thereof, a taper whose thickness is decreased toward the edge to form an inclination. 6. The display according to claim 3, further comprising a hinge section in contact with the second region of the supporting substrate. 7. The display according to claim 6, wherein the hinge section has a curved shape curved at a constant curvature regardless of an folding angle of the supporting substrate, and the supporting substrate is formed to have a curved shape corresponding to the curved shape of the hinge section in the second region.. 8. The display according to claim 1, wherein the supporting substrate is integrally formed. . . . 9. The display according to claim 8, wherein the supporting substrate is made of an elastomer. ' 10. The display according to claim 1, wherein the supporting substrate has a planar form of a square form, and the first region is a region corresponding to one or more sides of the square 27 SP308090 9 form. 11. The display according to claim 1, wherein • •-»• ~ the supporting substrate has a planar form of a square form, and the first region is a region corresponding to one or more comer portions of the square form. 12. The display according to claim 3, wherein the supporting substrate has a planar form of a square form, and the second region is a region which is extendedly formed to bisect the square form. 13. The display according to claim 1, further comprising a detection section laminated on the supporting substrate together with the display section and configured to detect a local deflection of the supporting substrate. 14. The display according to claim 13, further comprising a display switching sectioii configured to switch content displayed on the display section, based on a result of a detection by the detection section, wherein the display switching section performs an image display corresponding to page turning or scrolling on the display section when the detection section has detected a deflection in the first region of the supporting substrate. .J • 15. The display according to claim 1, wherein the display section includes an 28 •• SP308090 organic electroluminescence device, a liquid crystal device, or an electrophoretic device. -'-''-- 16. ' The display according to claim 1, further comprising an orgam'c thin film transistor as a drive device of the display section on the supporting substrate. 17. An electronic unit with a display, the display comprising: a supporting substrate having flexibility; and a display section provided on the supporting substrate, wherein the flexibility of the supporting substrate gradually increases toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof 18. A supporting substrate configured to support a display section and having flexibility, the''flexibility of the supporting substrate gradually tocreasing toward an edge in a first region provided at at least a portion on a side of the edge in a plane thereof