Display device and clock

Abstract

To provide a display device and a watch, which can avoid interference of electronic components and a light guide plate.SOLUTION: A display device comprises: a circuit board 32 on which electronic components 32a and 32b are arranged in a first region R11 and a second region R12 positioned closer to an outer peripheral side respectively; and a facing member (light guide plate 52) arranged to face the circuit board 32. The electronic components are arranged so that a distance between a first electronic component 32a, from among the electronic components 32a arranged in the first region R12, having the shortest distance to the facing member (light guide plate 52) and the facing member (light guide plate 52) is longer than a distance between a second electronic component 32b having the shortest distance to the facing member (light guide plate 52) and the facing member (light guide plate 52).SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a display device and a timepiece. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there is a display device in which an LCD and a light guide plate are laminated in this order and disposed opposite a circuit board on which various electronic components are mounted (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-62426 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration described in Patent Document 1, when the light guide plate is deformed by an external force or the like, the electronic components interfere with the light guide plate or the housing, causing damage to the electronic components.

[0005] The present invention has been made to solve these problems, and provides a display device and a timepiece that can prevent electronic components from interfering with members arranged in the case. [Means for solving the problem]

[0006] The display device according to the embodiment of the present invention includes a case and A light guide plate provided in the case and a light guide portion corresponding to the center of the light guide plate a circuit board having a first region and a second region located on an outer circumferential side of the first region, and electronic components disposed in each of the first region and the second region; ,of Preparation, the light guide plate is disposed opposite the circuit board, The electronic component is light guide plate the electronic components include one or more first electronic components arranged in the first region and one or more second electronic components arranged in the second region, The electronic components are disposed on a surface of the circuit board facing the light guide plate, and a distance between the light guide plate and a surface of the electronic components closest to the light guide plate is such that a distance between the light guide plate and a surface of the electronic components that is closest to the light guide plate in the first region is longer than a distance between the light guide plate and a surface of the electronic components that is closest to the light guide plate in the second region. . A watch according to another embodiment of the present invention comprises the display device, a watch case, and a watch module provided within the watch case. Effect of the Invention

[0007] According to the present invention, it is possible to prevent electronic components from interfering with other members in a display device. [Brief description of the drawings]

[0008] [Figure 1] 1 is a plan view of a timepiece according to a first embodiment of the present invention. [Diagram 2] Cross-sectional view of the clock taken along line AA in Figs. 1 and 4 . [Diagram 3] FIG. 3 is an enlarged cross-sectional view of a portion of the timepiece. [Figure 4] FIG. [Diagram 5] 5 is a cross-sectional view of the circuit board of the timepiece taken along line BB in FIGS. 1 and 4 . FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A display device 31 and a watch 1 according to an embodiment of the present invention will be described below with reference to Figs. 1 to 5. Fig. 1 is a cross-sectional view showing a part of the watch 1 according to the first embodiment. Fig. 2 is a cross-sectional view taken along line AA in Figs. 1 and 4, and Fig. 3 is a cross-sectional view showing an enlarged portion. Fig. 4 is a plan view of the circuit board, and an explanatory diagram showing each area. Fig. 5 is a cross-sectional view taken along line BB in Figs. 1 and 4 of the circuit board 32 (a cross-sectional view seen from the 9 o'clock side of the watch 1). In this embodiment, as an example, the display device 31 is applied to the dial of the watch 1. In the figure, X, Y, and Z respectively indicate three directions that are mutually orthogonal. The following description will be given assuming that the X axis is the horizontal direction connecting 3 o'clock and 9 o'clock on the watch 1, the Y axis is the vertical direction connecting 12 o'clock and 6 o'clock on the watch 1, and the Z axis is the front-to-back direction of the watch 1. 4, a portion of the circuit board 32 that overlaps with the light guide plate 52 or the LCD 35 in the first direction is taken as a facing region (facing portion), and of the mounting region, a central mounting region R11 as a first region is shown with diagonal lines, a peripheral mounting region R12 as a second region is shown with diagonal lines in two intersecting directions, and an edge region R13 as a third region is shown with diagonal lines of different widths outside the facing region that does not face the light guide plate 52 or the LCD 35. In this embodiment, as an example, the central mounting region R11 is disposed in a display region R1 visible from the outside, and the peripheral mounting region R12 is disposed in a non-display region R2 that is covered by a decorative panel outside the display region.

[0010] 1 and 2 is, for example, a wristwatch, and comprises a watch case 12 that forms the outer shell, a watch module 13 provided within the watch case 12, and a cover 14 that covers the front side of the watch module 13. The watch 1 also comprises a watch band 16 that is connected to two points on the outer periphery of the watch case 12, and multiple switches arranged on the outer periphery of the watch case 12.

[0011] The watch case 12 has a housing 21 arranged on the outer periphery of the watch module 13, a back cover 22 arranged on the back side of the watch module 13, and an exterior case 23. The housing 21 and the back cover 22 of the watch case 12 form an accommodation section 12a in which the watch module 13 is arranged. An opening on the front side of the housing 21 is covered by a cover 14. In this embodiment, the watch case 12 is configured in an octagonal shape.

[0012] The housing 21 has two band attachment portions 21a on its outer periphery, facing each other, for example at the 6 o'clock and 12 o'clock positions of the watch, to which the watch band 16 is attached.

[0013] The housing 21 is made of a metal or resin material. The housing 21 is configured in the shape of, for example, an octagonal frame corresponding to the shape of the watch case 12. The housing 21 is formed with an accommodating section 12a therein for accommodating the watch module 13 and the like. The housing 21 may be configured by combining a plurality of case members. As an example, the housing 21 in this embodiment is configured by assembling a main case member 24 and an inner case member 25 (opposing member) provided on the inner peripheral edge of the main case member 24 (case).

[0014] The main case member 24 is configured in an annular shape, for example an octagon, that corresponds to the shape of the watch case 12. The main case member 24 covers the outer periphery of the watch module 13 and the inner case member 25. A groove 24a is formed on the edge on the back side of the main case member 24. A waterproof ring that creates an airtight seal between the main case member 24 and the back cover 22 is attached to this groove 24a.

[0015] For example, the inner case member 25 is provided on the inner peripheral edge of the main case member 24, and supports a circuit board 32 and a display device 31 which are part of the watch module 13. The inner case member 25 is configured in a shape that corresponds to the shape of the watch case 12, for example, an octagonal frame shape.

[0016] The inner case member 25 has a support frame portion 25a supported by the circuit board 32, and a cover wall 25b disposed opposite the circuit board 32. As an example, the cover wall 25b of the inner case member 25 has a first cover portion 25c facing the second region R12 and covering the outer periphery of the display device 31, and a second cover portion 25d facing the third region R13 and covering the electronic components 32c. The first cover portion 25c has a plurality of steps corresponding to the arrangement of the components. For example, the cover portion 25c is provided on at least a part of the inner peripheral edge of the inner case member 25 and has a first surface 25e facing the front side of the peripheral edge of the LCD 35, a second surface 25f facing the front side of the peripheral edge of the light guide plate, and a connection surface 25g that continuously connects the first surface 25e and the second surface 25f.

[0017] The first surface 25e is a plane that is perpendicular to the first direction, which is the thickness direction of the display device 31 and the watch 1, and faces the back side. The first surface 25e is disposed opposite the front side of the periphery of the LCD 35, abuts against the periphery of the LCD 35, and presses the LCD 35 toward the back side. In this embodiment, the first surface 25e is disposed opposite the outer periphery of the front-side first electrode substrate 41 that constitutes the LCD 35.

[0018] The second surface 25f is a plane that is perpendicular to the first direction, which is the thickness direction of the display device 31 and the watch 1, and faces the back side. The second surface 25f is disposed opposite the front side of the periphery of the light guide plate 52. The second surface 25f faces the surface of the periphery of the light guide plate 52 with a small gap G1 between them. The second surface 25f is located on the back side, which is one side in the first direction, of the first surface 25e. Here, the distance in the first direction between the second surface 25f and the first surface 25e, i.e., the height in the first direction of the connection surface 25g that forms a step, is approximately equal to the thickness dimension of the first electrode substrate 41 and the second electrode substrate 42 of the LCD 35.

[0019] Connection surface 25g is an inner wall surface that stands in the first direction and connects first surface 25e and second surface 25f, and is disposed opposite the outer circumferential surfaces of first electrode substrate 41 and second electrode substrate . The second cover portion 25d is a wall-like member that faces the third region R13 and covers the electronic components 32c. As shown in Fig. 5, a part of the support frame portion 25a supported by the circuit board 32 may be disposed on the inner periphery side relative to other portions. For example, as shown in Fig. 5, a part of the support frame portion 25a is disposed in a portion between the second region R12 and the third region R13, and is located closer to the center of the circuit board 32 than the electronic components 32c in the third region R13.

[0020] The exterior case 23 is configured in, for example, an octagonal frame shape corresponding to the shape of the watch case 12, and is provided on the outer periphery of the front side of the housing 21. The exterior case 23 is fixed to the housing 21 by connecting members such as screws.

[0021] 2 and 3, the watch module 13 includes a display device 31 that displays various information such as the time, a circuit board 32 (component unit) that mounts various electronic components such as an IC and an antenna (first electronic component 32a, second electronic component 32b, third electronic component 32c) as a drive unit that operates the display device 31, and spacers 55a and 55b that are arranged between the circuit board 32 and the display device 31. The watch module 13 also includes a battery, a solar board, various sensor components, and various other components necessary for the watch function. In this embodiment, the display device 31 and the circuit board 32 that are stacked are configured to have, for example, an octagonal shape that corresponds to the shape of the watch case 12.

[0022] For example, the display device 31 includes a transmissive LCD 35 (liquid crystal display panel) and an illumination device 36. For example, the display device 31 is a digital display unit and has a digital display function.

[0023] The LCD 35 comprises a pair of transparent first and second electrode substrates 41 and 42 stacked with a liquid crystal material layer sandwiched therebetween, a pair of first and second polarizing plates 44 and 45 stacked respectively on the front and back surfaces of the pair of first electrode substrates 41 and the pair of second electrode substrates 42, and an optical sheet 46.

[0024] A pair of transparent first electrode substrate 41 and second electrode substrate 42 have transparent electrodes arranged in a matrix on the opposing surfaces. The overlapping portions of the transparent electrodes of the pair of first electrode substrate 41 and second electrode substrate 42 constitute pixels, and pixels arranged in a matrix are formed. For example, the LCD 35 is electrically connected to the circuit board 32, and displays information electro-optically when a drive signal is given from the circuit board 32. That is, the LCD 35 displays information such as characters and patterns electro-optically by selectively applying a voltage to the transparent electrodes of the first electrode substrate 41 and the second electrode substrate 42, so that the pixels arranged in a matrix are selectively shielded from light. In addition, a decorative panel 47 is provided on the outer periphery of the LCD 35, and a display area R1 configured so that display information can be viewed from the front side in the center, and a non-display area R2 that is a cover area formed on the periphery are formed. The display area R1 is configured, for example, in a rectangular shape.

[0025] The second polarizing plate 45 on the rear side, which corresponds to the rear surface of the LCD 35, is disposed in close contact with and opposed to the front side of the diffusion plate 54 of the illumination device .

[0026] The first electrode substrate 41 on the front side of the LCD 35 is disposed opposite the back side of the first surface 25e of the inner case member 25 at its periphery, and the first polarizing plate 44 on the front side is disposed on the inner peripheral side of the cover wall 25b of the inner case member 25.

[0027] The illumination device is provided behind the LCD 35, and emits light from behind the LCD 35. The illumination device includes a light emitter 51, a light guide plate 52, a reflector 53, and a diffusion plate .

[0028] The light emitter 51 is mounted on the circuit board 32, that is, on the same surface as the electronic components 32a, 32b, and 32c. The light emitter 51 is provided on the circuit board 32 on the outer periphery side of the light guide plate 52. Specifically, the light emitter 51 is disposed facing one side of the light guide plate 52. As an example, as shown in FIG. 4, a plurality of light emitters 51 are provided, and the light emitters 51 are disposed in two locations, for example, near the 7 o'clock and 5 o'clock positions, in the 6 o'clock region. The light emitter 51 is, for example, a light emitting diode (LED) element, and emits light in the visible light region, such as white light. The light emitter 51 is electrically connected to the circuit board 32.

[0029] The light emitting body 51 has a light source 51a that irradiates light toward an end face of the light guide plate 52. The light source 51a is disposed at the center of the opposing surface of the light emitting body 51 that faces the light guide plate 52. For example, in this embodiment, the light source 51a irradiates light from the end on the 6 o'clock side toward the 12 o'clock side.

[0030] The light guide plate 52 is formed in a plate shape from a transparent or translucent material having optical transparency. For example, the light guide plate 52 has a flat plate portion 56 and a protrusion 57 protruding from the end of the plate portion 56 to the rear side, which are integral with the plate portion 56. For example, the light guide plate 52 is smaller than the outline of the circuit board 32 and faces the mounting area in the center of the circuit board 32. For example, the light guide plate 52 has a first region R1 1 The light guide plate 52 (opposing member) is disposed to face the circuit board 32 across the first region R11 and the second region R12, and a portion facing the first region R11 and the second region R12 is configured in a flat plate shape. The back surface of the light guide plate 52 (opposing member) facing the circuit board 32 is parallel to the opposing surface of the circuit board 32. The light guide plate 52 is larger than the outer shape of the LCD 35. The light guide plate 52 has an outer shape of, for example, an octagonal shape. A predetermined light guide pattern is formed on the light guide plate 52 to guide the light from the light emitter 51 so as to uniformly emit the light from the front side surface. The light guide pattern is formed so that the portion close to the light emitter 51 is sparse and the portion far from the light emitter 51 is dense, and the light guide pattern is formed so that the light guide plate 52 emits the incident light from the upper surface (front surface). For example, the light guide pattern may be formed only on the thin portion 56a of the light guide plate 52 other than the convex portion 57, or may be formed on the region including the convex portion 57 of the plate portion 56.

[0031] The protrusion 57 is provided on the end of the plate portion 56 on the light-emitting body 51 side. The protrusion 57 is a thick-walled protrusion that protrudes from the end of the plate portion 56 to the back side. The thickness dimension of the protrusion 57 in the first direction is configured to be a predetermined thickness that is larger than the thickness dimension of the thin-walled portion 56a in the center of the plate portion 56.

[0032] In this embodiment, as an example shown in Fig. 4, protrusions 57 are provided at the 5 o'clock and 7 o'clock positions of watch 1. A region extending in the horizontal direction of each protrusion 57 protrudes toward the back side. For example, protrusion 57 is located outside central display region R1 in which display information is visible when viewed from the front side of the watch, and in non-display region R2 which is covered by decorative panel 47 shown in Fig. 2 and cannot be seen from the front side.

[0033] As shown in FIG. 3, the convex portion 57 of the light guide plate 52 has a side portion 57b facing the light emitter 51, a rear end surface portion 57c facing the circuit board, and an inclined surface portion 57d, and is configured to have a substantially trapezoidal cross section when viewed horizontally connecting the 3 o'clock and 9 o'clock positions.

[0034] The side surface portion 57b of the protrusion 57 of the light guide plate 52 faces the light emitter 51. The side surface portion 57b forms an incident surface into which light is incident. The side surface portion 57b is provided at a position facing the light source 51a in the incident direction (vertical direction) from 6 o'clock to 12 o'clock.

[0035] The rear end surface 57c of the protrusion 57 of the light guide plate 52 is formed, for example, in a flat plate shape. The rear end surface 57c is provided at a position behind the position of the light source 51a and is disposed opposite to the circuit board 32 with a predetermined gap G2 therebetween. The rear end surface 57c is disposed at a position closer to the circuit board 32 (the rear side of the watch 1) than the light source 51a of the light-emitting body 51 in the first direction.

[0036] The inclined surface 57d of the protrusion 57 of the light guide plate 52 is an inclined surface that slopes from the inner end of the rear end surface portion 57c toward the center. The inclined surface 57d is a surface that extends obliquely from the rear surface of the plate portion 56 toward the circuit board 32 and is inclined with respect to the first direction and a planar direction perpendicular to the first direction. The inclined surface 57d is disposed to face the circuit board 32 in the first direction.

[0037] The reflecting plate 53 is provided on the rear side of the light guide plate 52 and is formed in a flat plate shape. The reflecting plate 53 reflects the light leaking from the plate portion 56 toward the light guide plate 52, thereby guiding the light to the light guide plate 52 again.

[0038] The diffusion plate 54 is a light-transmitting plate disposed between the light guide plate 52 and the LCD 35. The diffusion plate 54 is disposed with its front surface in close contact with the rear surface of the LCD 35 and its rear surface in close contact with the front surface of the light guide plate 52. The diffusion plate 54 diffuses light from the light guide plate 52 and causes it to be emitted uniformly from the upper surface. By interposing the diffusion plate 54 between the light guide plate 52 and the LCD 35 in the first direction, which is the opposing direction, a gap G1 corresponding to the thickness of the diffusion plate 54 and the second polarizing plate 45 is formed between the second surface 25f and the peripheral surface of the light guide plate 52.

[0039] The circuit board 32 is a board on which a predetermined wiring pattern is formed and on which a plurality of electronic components (a first electronic component 32a, a second electronic component 32b, and a third electronic component 32c) are mounted on the surface. The circuit board 32 is disposed opposite to the rear surface side of the light guide plate 52. In Fig. 4, the LCD 35 disposed on the circuit board 32 is indicated by a dashed line, and the light guide plate 52 is indicated by a dashed line.

[0040] Here, as shown in FIG. 4 and FIG. 5, the outer peripheral mounting area R12 (second area) is located on the outer peripheral side of the central mounting area R11 (first area), and the end area R13 (third area) is located on the outer peripheral side of the outer peripheral mounting area R12 (second area). The central mounting area R11 (first area) is an area including the center of the circuit board 32. When the display device 31 is viewed from the viewing side in a plan view, the outer peripheral mounting area R12 (second area) is configured to cover the entire outer periphery of the central mounting area R11 (first area). In contrast, the end area R13 (third area) is located on a part of the outer peripheral side of the outer peripheral mounting area R12 (second area), on the 6 o'clock side of an analog clock. Also, when the display device 31 is viewed from the viewing side in a plan view, the end area R13 (third area) is located between two light emitters 51. The end area R13 (third area) is located on the outer peripheral side of the outer peripheral mounting area R12 (second area).

[0041] On the circuit board 32, the electronic components 32a, 32b, and 32c are arranged to be spaced apart in the first direction from the light guide plate 52, which is an opposing member. The first electronic component 32a, the second electronic component 32b, and the third electronic component 32c are arranged on the circuit board 32 so that the closer to the center, the lower the height of the electronic components. As an example, a portion of the circuit board 32 that overlaps with at least one of the LCD 35 and the light guide plate 52 in the first direction is set as an opposing region (opposing portion), and a maximum height T2 of one or more second electronic components 32b arranged in a peripheral mounting region R12 (second region) outside the central mounting region R11 of the opposing region is greater than a maximum height T1 of one or more first electronic components 32a arranged in a central mounting region R11 (first region) in the central opposing region. Furthermore, the maximum height T3 of one or more third electronic components 32c in the edge region R13 (third region) which is outside the opposing region and does not overlap with the LCD 35 and the light guide plate 52 is greater than the maximum height T2 of one or more second electronic components 32b in the peripheral mounting region R12.

[0042] In other words, the maximum dimension in the opposing direction of one or more first electronic components 32a arranged in the central mounting area R11 (first area) among the multiple electronic components is smaller than the maximum dimension in the opposing direction of one or more second electronic components 32b arranged in the peripheral mounting area R12 (second area), and the maximum dimension in the opposing direction of one or more third electronic components 32c arranged in the peripheral mounting area R12 (second area) is smaller than the maximum dimension in the opposing direction of one or more second electronic components 32b arranged in the end area R13.

[0043] As an example, the central mounting area R11 and the peripheral mounting area R12 are respectively set to a display area R1 and a non-display area R2 where the display device 31 is visible from the front side. In the present embodiment, as an example, the boundary between the central mounting area R11 and the peripheral mounting area R12 is set to the same position as the boundary between the display area R1 and the non-display area R2.

[0044] As an example, the maximum height T1 of the first electronic component 32a in the central mounting region R11 is set to 0.9 mm, the maximum height T2 of the second electronic component 32b in the peripheral mounting region R12 is set to 1.1 mm, and the maximum height T3 of the third electronic component 32c in the edge region R13 is set to 1.5 mm. That is, the electronic components (first electronic component 32a, second electronic component 32b, third electronic component 32c) on the circuit board 32 and the light guide plate 52 are arranged so that the gap between them increases as they approach the center.

[0045] The spacers 55a, 55b are provided between the circuit board 32 and the reflector 53 of the lighting device 36, and regulate the distance in the first direction between the light guide plate 52 and the circuit board 32. The spacers 55 are made of a cushioning material such as urethane formed into a rectangular block shape. As shown in FIG. 4, the spacers 55 are provided, for example, outside the display region R1 on the circuit board 32.

[0046] As shown in FIG. 3, for example, the dimension in the first direction of spacers 55a, 55b is set to a height that can suppress compression of light guide plate 52 by forming a gap G2 between rear end surface portion 57c of convex portion 57 of light guide plate 52 and the surface of circuit board 32.

[0047] The spacers 55a and 55b are attached to predetermined positions on the outer periphery of the circuit board 32. For example, as shown in FIG. 4, in this embodiment, the spacers are provided at a total of four positions on both sides in the vertical and horizontal directions, that is, at the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions. As an example, in this embodiment, two types of spacers, large and small, are provided, a first spacer 55a and a second spacer 55b, which are different in size. For example, the large first spacer 55a is disposed at the 3 o'clock and 9 o'clock positions on both sides in the horizontal direction and extends in the vertical direction. The small second spacer 55b is disposed at the 6 o'clock and 12 o'clock positions on both sides in the vertical direction. For example, in this embodiment, a terminal for connecting a connector is disposed at the 12 o'clock position on one side in the vertical direction, and each spacer 55 is disposed at a position closer to the center than this terminal.

[0048] The cover 14 is a transparent member formed of inorganic glass such as SiO2 glass. For example, the cover 14 is a transparent octagonal watch glass that is disposed on the front side of the watch module 13 and covers the watch module 13. For example, the cover 14 is supported on the inner peripheral edge of the opening on the front side of the housing 21. A packing is interposed between the outer periphery of the cover 14 and the inner peripheral edge of the housing 21.

[0049] The watch band includes a pair of band members and a connecting mechanism such as a buckle that are connected to two opposing points on the outer periphery of the watch case 12.

[0050] The switch is provided, for example, on the outer periphery of the case, and when pressed by an operator, switches the mode of the clock module 13, adjusts the time, and so on.

[0051] In the process of assembling the display device, for example, the LCD 35 is set from the back side of the accommodation portion 12a of the housing 21. At this time, the outer periphery of the first electrode substrate 41 on the front side of the LCD 35 is disposed facing and supported by the first surface 25e of the housing 21. The first polarizing plate 44 and the optical sheet 46 are located on the inner periphery side of the cover wall 25b and disposed on the front side of the first surface 25e. Then, the circuit board 32 on which the first electronic component 32a, the second electronic component 32b, and the third electronic component 32c are mounted and to which the spacer 55 is attached in advance is assembled to the lighting device. At this time, the light guide plate 52 and the LCD 35 are pushed up to the front side by the spacer 55a.

[0052] According to the display device 31 of this embodiment, the height of the first electronic component 32a in the central mounting region R11 is made lower than the height of the second electronic component 32b in the peripheral mounting region R12 which is less susceptible to bending, and the height of the third electronic component 32c in the edge region R13 outside the facing region which does not overlap at least one of the LCD 35 and the light guide plate 52 in the first direction in the circuit board 32 is made higher, thereby improving impact resistance and realizing high-density mounting and high functionality. That is, by setting a large gap with the light guide plate 52 at a portion which is stacked with the LCD 35 and the light guide plate 52 and is susceptible to bending due to impact, it is possible to avoid impact between the light guide plate 52 and the first electronic component 32a.

[0053] The above-described embodiments are merely examples and do not limit the scope of the invention. Furthermore, features of multiple embodiments may be combined.

[0054] (Modification) For example, in the above embodiment, the surface of the circuit board 32 is flat, and the maximum height of the electronic components increases in the order of the first region, the second region, and the third region, so that the maximum height of the electronic components varies depending on the region, but the present invention is not limited to this. Any configuration may be used as long as the distance between the end face of the electronic component having the maximum height in each region and the light guide plate 52 (opposing member) or the second cover part 25d of the inner case member 25 (opposing member) of the housing 21 facing the electronic component decreases in the order of the first region, the second region, and the third region.

[0055] For example, a configuration may be adopted in which a plurality of circuit boards 32 are provided, and the heights of the plurality of circuit boards 32 in the first direction are different from one another, or the circuit boards 32 are disposed at an angle with respect to the surface of the LCD 35, and the heights of the circuit boards 32 in the first direction are different depending on the portion. Among the electronic components in the first region, a first electronic component having the smallest distance between its end face and light guide plate 52 (opposing member) and, among the electronic components in the second region, a second electronic component having the smallest distance between its end face and light guide plate 52 (opposing member) are arranged such that the distance between the end face of the first electronic component and the light guide plate is greater than the distance between the end face of the second electronic component and the light guide plate. This makes it possible to prevent the electronic components from interfering with the opposing light guide plate 52 (opposing member) even if the light guide plate 52 is deformed by an external force or the like, and also makes it possible to effectively utilize the mounting area, thereby achieving high functionality.

[0056] Similarly, by arranging the electronic component so that the distance between the end face of the electronic component having the maximum height in the second region and the opposing light guide plate 52 (opposing member) is greater than the distance between the end face of the electronic component having the maximum height in the third region and the opposing second cover portion 25d of the inner case member 25 (opposing member) of the housing 21, it is possible to prevent the electronic component from interfering with each member, and also to make effective use of the mounting area, thereby achieving high functionality.

[0057] In this way, the electronic component display device includes a circuit board having electronic components arranged in each of a first plurality of regions, a second region located more outer than the first region, and a third region located more outer than the second region, and a member (light guide plate, housing) arranged opposite the circuit board, wherein a first electronic component having the shortest distance between an end face of the electronic component and the member among the electronic components arranged in the first region and a second electronic component having the shortest distance between an end face of the electronic component and the member are arranged such that the distance between the end face of the first electronic component and the member is longer than the distance between the end face of the second electronic component and the member, and wherein a second electronic component and a third electronic component having the shortest distance between an end face of the electronic component and the member among the electronic components arranged in the third region are arranged such that the distance between the end face of the second electronic component and the member is longer than the distance between the end face of the third electronic component.

[0058] Also, while the example in which the light emitter 51 is provided at one end has been shown, the present invention is not limited to this. For example, the light emitter 51 may be arranged at the center or both ends of the LCD 35 or the light guide plate 52.

[0059] In addition, the shape and the position of the spacers 55a and 55b are not limited to those in the above embodiment. For example, when the reflector 53 has a bending in a predetermined roll direction, the bending of the reflector 53 can be suppressed by providing the spacers on both sides at least in the roll direction.

[0060] In the above embodiment, the height is set by dividing the area into three areas R11, R12, and R13, but the height may be set by dividing the area into four or more levels. In addition, the boundaries of the areas are arranged in the display area R1 and the non-display area R2, but the present invention is not limited to this. For example, the central mounting area R11, the peripheral mounting area R12, and the end area R13 may be divided based on the distance from the support position of the housing 21 or the distance from the center.

[0061] Although the display unit is an LCD 35, the display unit is not limited to this. For example, the display unit may be an organic electroluminescence (EL) display.

[0062] In the present application, even if the light guide plate is deformed by an external force, the tallest electronic component in the central region where the light guide plate is easily bent is shorter than the tallest electronic component in the peripheral region where the light guide plate is less bent, so that interference with the light guide plate can be suppressed. Also, since the housing is less likely to deform relative to the light guide plate, the tallest electronic component in the peripheral region that overlaps with the light guide plate in a plan view is shorter than the tallest electronic component in the end region that overlaps with the housing on the further peripheral side, so that interference with the light guide plate can be suppressed.

[0063] Although several embodiments of the present invention have been described, the present invention is encompassed within the scope of the invention described in the claims and their equivalents. [Explanation of symbols]

[0064] 13...Clock module 14…Cover 16...Watch band 21. Housing 21a…Band attachment part 22…Case back 23…Outer case 24…Main case parts 24a...Groove 25…Inner case material 25a…Support frame part 25b…Cover wall 25c…First cover part 25d…Second cover part 25e…Side 1 25f…Second side 25g…Connection surface 31...Display device 32...Circuit board 32a…first electronic component 32b…Second electronic component 32c…Third electronic component 36…Lighting equipment 41...first electrode substrate 42...Second electrode substrate 44...First polarizing plate 45...Second polarizing plate 46...Optical sheet 47…Decorative panel 51...Luminous object 51a...Light source 52...Light guide plate 53...Reflector 54…Diffusion plate (transparent plate) 55…Spacer 55a…Spacer 55b…Spacer 56…Plate section 56a...Thin wall part 57…Convex part 57b…Side part 57c…Back end surface part 57d...Slope 1. Clock G1…Gap G2…Gap R1…display area R2…Hidden area R11: Central mounting area R12: Outer peripheral mounting area R13...end area T1…Maximum height T2: Maximum height T3…Maximum height

Claims

1. Case and a light guide plate provided in the case; a circuit board having a first region corresponding to a center of the light guide plate and a second region located on an outer periphery side of the first region, and electronic components are arranged in each of the first region and the second region; Equipped with the light guide plate is disposed opposite the circuit board, the electronic component is disposed at a distance from the light guide plate, the electronic components include one or more first electronic components arranged in the first region and one or more second electronic components arranged in the second region; the electronic components are disposed on a surface of the circuit board facing the light guide plate, and a distance between the light guide plate and a surface of the electronic components closest to the light guide plate is longer in the first region than in the second region. Display device.

2. the circuit board has a third region located on an outer periphery side of the second region, An electronic component is disposed in the third region; 2. The display device according to claim 1, wherein the second electronic component, among the electronic components arranged in the second region, has the shortest distance between an end face of the electronic component and the light guide plate, and the third electronic component, among the electronic components arranged in the third region, has the shortest distance between an end face of the electronic component and the light guide plate, are arranged such that the distance between the end face of the second electronic component and the light guide plate is longer than the distance between the end face of the third electronic component and the light guide plate.

3. The display device according to claim 2 , further comprising a light emitter disposed on the circuit board.

4. The light guide plate is flat in the first region and the second region, The display device according to claim 1 , wherein the first region is a region including a center of the circuit board.

5. The display device according to claim 1 , wherein a surface of the light guide plate facing the circuit board is parallel to the circuit board.

6. A display device as described in claim 2, comprising an inner case supporting an outer periphery of the light guide plate.

7. a maximum height from the circuit board of one or more of the electronic components arranged in the first region is lower than a maximum height from the circuit board of one or more of the electronic components arranged in the second region; The display device according to claim 2 , wherein a maximum height from the circuit board of the one or more electronic components arranged in the second region is lower than a maximum height from the circuit board of the one or more electronic components arranged in the third region.

8. a maximum dimension in a facing direction of one or more electronic components arranged in the first region among the plurality of electronic components is smaller than a maximum dimension in a facing direction of one or more electronic components arranged in the second region; The display device according to claim 2 , wherein a maximum dimension in a facing direction of the one or more electronic components arranged in the second region is smaller than a maximum dimension in a facing direction of the one or more electronic components arranged in the third region.

9. A plurality of the light emitters are provided, The display device of claim 3 , wherein, when viewed in a plane from the viewing side, the second region is configured to cover the entire outer periphery of the first region, and the third region is disposed on the outer periphery side of the second region and between the plurality of light-emitting bodies.

10. A display device according to any one of claims 1 to 9, A watch case and A watch module provided within the watch case.

11. A display device according to claim 3; A watch case and a watch module provided within the watch case; Equipped with A timepiece in which the third area is located on the 6 o'clock side when viewed in a plan view from the viewing side.

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