Display device and watch

Abstract

To provide a display device and a watch, which can secure a mounting area.SOLUTION: A display device 31 comprises: a light emitting body 51; a component unit (circuit board 32) having a plurality of electronic components 32a and 32b; and a light guide plate 52 including a plate portion 56 arranged to face the component unit (circuit board 32), and a convex portion 57 protruding from the plate portion 56 toward the component unit (circuit board 32) side and having a side face portion 57b facing the light emitting body 51 and a slope portion 57d facing the component unit (circuit board 32). The plurality of electronic components 32a and 32b are arranged to be spaced apart from the light guide plate 52 in a facing direction, and at least one of the plurality of electronic components 32a and 32b is arranged at a position overlapping the slope portion 57d as viewed from a normal direction of the plate portion 56.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, display devices used in wristwatches and the like include an LCD, a light guide plate, and a reflector that are laminated in this order and disposed opposite a circuit board on which various electronic components are mounted. For example, Patent Document 1 describes a configuration in which a light guide plate has an inclined surface that gradually becomes thinner from one end side to a position corresponding to the other end side of an LCD. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-109339 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the configuration described in Patent Document 1, it is difficult to ensure a mounting area between the circuit board and the light guide plate.

[0005] The present invention has been made to solve these problems, and provides a display device and a timepiece that can ensure a mounting area. [Means for solving the problem]

[0006] A display device according to an embodiment comprises a light-emitting body, a component unit having a plurality of electronic components, a plate portion arranged opposite the component unit, and a light guide plate including a protrusion protruding from the plate portion toward the component unit and having a side portion facing the light-emitting body and a slope portion facing the component unit, wherein the plurality of electronic components are arranged at a distance from the light guide plate in the opposing direction, and at least any one of the plurality of electronic components is arranged in a position overlapping with the slope portion when viewed in a plane from the normal direction of the plate portion. Effect of the Invention

[0007] According to the present invention, it is possible to ensure a mounting area for electronic components 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-section of the watch. [Diagram 3] FIG. 3 is an enlarged cross-sectional view of a portion of the timepiece. [Figure 4] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A display device 31 and a watch 1 according to a first embodiment of the present invention will be described below with reference to FIG. 1 to FIG. 4. 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 FIG. 1, and FIG. 3 is a cross-sectional view showing an enlarged part. FIG. 4 is a plan view of a circuit board. In this embodiment, an example is shown in which the display device 31 is applied to the dial of the watch 1. In the figure, X, Y, and Z respectively indicate three mutually orthogonal directions. 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-rear direction (first direction) of the watch 1. For the sake of explanation, in FIG. 4, the first region, which is the visible region R1, is shown by hatching with oblique lines in one direction, and the second region, which is the cover region R2, is shown by hatching with oblique lines in two intersecting directions.

[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 provided on the inner peripheral edge of the main case member 24.

[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] 3, for example, the inner case member 25 has a support wall portion 25a that supports the display device. The support wall portion 25a has a plurality of steps corresponding to the arrangement of the components. For example, the support wall portion 25a is provided on at least a part of the inner periphery of the inner case member 25, and has a first surface 25b facing the front side of the periphery of the LCD 35, a second surface 25c facing the front side of the periphery of the light guide plate, and a connection surface 25d that continuously connects the first surface 25b and the second surface 25c.

[0017] The first surface 25b 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 25b 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 25b is disposed opposite the outer periphery of the front electrode substrate 41 that constitutes the LCD 35.

[0018] The second surface 25c 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 25c is disposed opposite the front side of the periphery of the light guide plate 52. The second surface 25c faces the peripheral surface of the light guide plate 52 with a small gap G1 therebetween. The second surface 25c is located on the other side in the first direction, that is, the back side, of the first surface 25b. Here, the distance in the first direction between the second surface 25c and the first surface 25b, i.e., the height in the first direction of the connection surface 25d that forms a step, is approximately equal to the thickness dimension of the electrode substrates 41, 42 of the LCD 35.

[0019] The connection surface 25d is an inner wall surface that stands in the first direction and connects the first surface 25b and the second surface 25c, and is disposed opposite the outer circumferential surfaces of the electrode substrates 41 and .

[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, clock 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 32a, 32b such as an IC and an antenna as a drive unit that operates display device 31, and spacers 55a, 55b that are arranged between circuit board 32 and display device 31. Clock module 13 also includes a battery, a solar board, various sensor components, and various other components necessary for clock functions. In this embodiment, display device 31 and circuit board 32 that are stacked are configured in, for example, an octagonal shape that corresponds to the shape of 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 includes a pair of transparent electrode substrates 41, 42 laminated with a liquid crystal material layer sandwiched therebetween, a pair of polarizing plates 44, 45 laminated respectively on the front surface of the pair of electrode substrates 41 and the back surface of the electrode substrate 42, and an optical sheet 46. The LCD 35 is disposed opposite the light guide plate 52 on the opposite side to the circuit substrate 32.

[0024] A pair of transparent electrode substrates 41 and 42 have transparent electrodes arranged in a matrix on the opposing surfaces. The overlapping portions of the transparent electrodes of the pair of electrode substrates 41 and 42 constitute pixels, and pixels arranged in a matrix are formed. For example, the LCD 35 is electrically connected to the circuit substrate 32, and displays information electro-optically when a drive signal is given from the circuit substrate 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 electrode substrates 41 and 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 visible region R1 configured to enable display information to be visible from the front side in the center, and a cover region R2 formed on the outer periphery are formed. The visible region R1 is configured, for example, in a rectangular shape.

[0025] A rear polarizing plate 45 which is the rear surface of the LCD 35 is disposed opposite to and in close contact with the front surface of the diffusion plate 54 of the illumination device 36 .

[0026] The front electrode substrate 41 of the LCD 35 is disposed opposite the rear side of the first surface 25b of the inner case member 25 at its periphery, and the front polarizing plate 44 is disposed on the inner periphery side of the support wall portion 25a 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 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, the light emitter 51 is disposed in two locations, for example, near the 5 o'clock and 7 o'clock positions, in the 6 o'clock side area. The light emitter 51 is, for example, a light emitting diode (LED) element, and emits light in the visible light range, 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 light transmission. For example, the light guide plate 52 integrally includes a flat plate portion 56 and a protruding portion 57 protruding from the rear side at the end of the plate portion 56. For example, the light guide plate 52 is smaller than the outer shape of the circuit board 32 and faces the mounting area in the center of the circuit board 32. The light guide plate 52 is also larger than the outer shape of the LCD 35. The light guide plate 52 has an outer shape of, for example, an octagonal shape. The light guide plate 52 is formed with a predetermined light guide pattern that guides light from the light emitter 51 so that it is uniformly emitted from the front side surface. The light guide pattern is formed from one side to the other so that the portion close to the light emitter 51 is sparse and the portion far from the light emitter 51 is dense, and is configured to emit incident light from the upper surface (front surface). For example, the light guide pattern may be formed only on the thin portion 56 a of the light guide plate 52 excluding the protrusion 57 , or may be formed on the region of the plate portion 56 including the protrusion 57 .

[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 laterally of each protrusion 57 protrudes toward the back side. For example, protrusion 57 is located outside central visible region R1 where display information is visible when viewed from the front side of the watch, and is located in cover region R2 that 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 vertical direction, which is the incident direction from the 6 o'clock side to the 12 o'clock side.

[0035] The rear end surface 57c of the protrusion 57 of the light guide plate 52 is, for example, formed 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 facing 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 the 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 polarizing plate 45 is formed between the second surface 25c 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 32a, 32b 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. Here, at least a part of any one or more electronic components 32b among the plurality of electronic components 32a, 32b is disposed at a position facing the inclined surface portion 57d in the first direction, and an end face of the electronic component 32b disposed on the inclined surface portion 57d facing the light guide plate 52 is disposed at a position farther away from the light guide plate 52 in the facing direction than an end face of the electronic component 32a disposed opposite the thin portion 56a of the plate portion 56 facing the light guide plate 52. In other words, when the display device 31 of the watch 1 is viewed in a plan view from the viewing side, the area of ​​the circuit board 32 that overlaps one side in the first direction of the thin portion 56a of the plate portion 56 of the light guide plate 52 is defined as a first mounting area A1, and the area that overlaps one side in the first direction of the sloped portion 57d of the convex portion 57 at the end of the light guide plate 52 is defined as a second mounting area A2, and the maximum height of the one or more electronic components 32b arranged in the second mounting area A2 is smaller than the maximum height of the one or more electronic components 32a arranged in the first mounting area A1.

[0040] That is, the surface of the electronic component 32b behind the inclined surface 57d of the protrusion 57 is located behind the surface of the electronic component 32b behind the thin portion 56a of the plate portion 56.

[0041] 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 55a, 55b 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 visible region R1 on the circuit board 32.

[0042] 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.

[0043] The spacers 55a and 55b are attached to predetermined locations 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 locations on both sides in the vertical and horizontal directions, i.e., 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 the small second spacer 55b extending in the vertical direction 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.

[0044] 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.

[0045] The watch band 16 is provided with 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.

[0046] 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.

[0047] In the process of assembling the display device 31, 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 electrode substrate 41 on the front side of the LCD 35 is disposed facing and supported by the first surface 25b of the housing 21. The first polarizing plate 45 and the optical sheet 46 are located on the inner periphery side of the support wall portion 25a and on the front side of the first surface 25b. Then, the diffusion plate 54, the light guide plate 52, and the reflection plate 53 are bonded in order to the back side of the LCD 35 and closely attached to each other to form the illumination device. Then, the circuit board 32 on which the electronic components 32a and 32b are mounted and to which the spacer 55 is attached in advance is assembled into the lighting device. At this time, the light guide plate 52 and the LCD 35 are pushed up toward the front side by the spacer 55a.

[0048] According to the display device 31 of this embodiment, at least one of the electronic components 32a, 32b is disposed at a position overlapping the inclined surface 57d in plan view from the normal direction of the plate portion 56. That is, the electronic component 32a can also be disposed at a position facing the rear side of the inclined surface 57d provided at the end of the light guide plate 52, and the electronic component 32a corresponding to the inclined surface 57d is set at a lower height than the electronic component 32b facing the thin portion 56a of the plate portion 56 and separated from the light guide plate 52, thereby more effectively securing the mounting area while improving impact resistance, thereby achieving high functionality and miniaturization.

[0049] Furthermore, in the display device 31 of this embodiment, the light guide plate 52 has a sloped portion 57d extending from the convex portion 57 on the light emitter 51 side, and the majority of the area of ​​the light guide plate 52 is occupied by the thin portion 56a. Therefore, only short electronic components 32b can be arranged on the sloped portion 57d. However, even if there are many tall electronic components 32a, many tall electronic components 32a can be arranged on the thin portion 56a, which has a larger area than the sloped portion 57d.

[0050] The above-described embodiments are merely examples and do not limit the scope of the invention. Furthermore, features of multiple embodiments may be combined.

[0051] (Modification) For example, in the above embodiment, the surface of the circuit board 32 (component unit) is flat, and the heights of the electronic components 32a and 32b are different, but the present invention is not limited to this. The circuit board 32 may have a different height depending on the portion. For example, the circuit board 32 in the second mounting area A2 of the inclined surface portion 57d and the circuit board 32 in the first mounting area A1 of the plate portion 56 (thin portion 56a) may have a different height in the first direction. Even if the heights of the electronic components 32a and 32b are approximately the same, it is sufficient that the circuit board 32 on which the electronic components 32a in the first mounting area A1 are mounted is disposed closer to the LCD 35 in the first direction than the circuit board 32 on which the electronic components 32b in the second mounting area A2 are mounted. Even in this case, by arranging the end faces (top faces) of the electronic components 32b in the second mounting area A2 so as to be farther away from the plate portion 56 (thin portion 56a) of the light guide plate 52 than the end faces (top faces) of the electronic components 32a in the first mounting area A1, the mounting area can be utilized effectively, thereby achieving high functionality.

[0052] 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.

[0053] 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.

[0054] 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]

[0055] 1. Clock 12...Watch case 12a… Storage section 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 wall part 25b...Side 1 25c…Second side 25d…Connection surface 31...Display device 32...Circuit board (component unit) 32a...Electronic components 32b...Electronic components 36…Lighting equipment 41...Electrode substrate 42...Electrode substrate 44...Polarizing plate 45...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 A1: Mounting area A2...Implementation area G1…Gap G2…Gap R1: Visibility area R2: Coverage area

Claims

1. A light emitter; A circuit board on which a plurality of electronic components are mounted; a light guide plate including a plate portion disposed opposite the circuit board, a side portion protruding from the plate portion toward the circuit board and facing the light emitter, and an inclined surface portion formed between the plate portion and the side portion; Equipped with the electronic components are disposed apart from the light guide plate in the facing direction, the plurality of electronic components include a first electronic component arranged at a position overlapping across the plate portion and the inclined surface portion when viewed in a plan view from the normal direction of the plate portion, and a second electronic component arranged at a position overlapping only with the plate portion when viewed in a plan view from the normal direction of the plate portion, a maximum height of the second electronic component from the circuit board is lower than a maximum height of a first electronic component that has the highest maximum height from the circuit board among the first electronic components; Display device.

2. A display device as described in claim 1, wherein the distance between the end face of the second electronic component facing the light guide plate and the light guide plate is greater than the distance between the end face of the first electronic component facing the light guide plate and the light guide plate.

3. The display device according to claim 1 , further comprising an LCD disposed opposite to a front side of the light guide plate.

4. The LCD has a panel on an outer periphery, and a viewing area is formed on a central side of the panel, The display device according to claim 3 , wherein the inclined surface portion is disposed to face an area outside the visible area.

5. A light emitter, A circuit board on which a plurality of electronic components are mounted; a light guide plate including a plate portion disposed opposite the circuit board, a side portion protruding from the plate portion toward the circuit board and facing the light emitter, and an inclined surface portion formed between the plate portion and the side portion; Equipped with the electronic components are disposed apart from the light guide plate in the facing direction, the plurality of electronic components include a first electronic component arranged at a position overlapping across the plate portion and the inclined surface portion when viewed in a plan view from the normal direction of the plate portion, and a second electronic component arranged at a position overlapping only with the plate portion when viewed in a plan view from the normal direction of the plate portion, the circuit board has a second mounting area corresponding to the inclined surface portion and a first mounting area corresponding to the plate portion, the second mounting area having different heights in a thickness direction of the display device; Display device.

6. A display device as described in claim 5, wherein the height of the first electronic component and the height of the second electronic component are approximately the same.

7. The light guide plate includes an LCD disposed on the opposite side of the circuit board, The display device according to claim 5 , wherein the first mounting region of the circuit board is disposed closer to the LCD than the second mounting region of the circuit board in a thickness direction of the display device.

8. A display device as described in Claim 5, wherein an end face of an electronic component arranged in the second mounting area of ​​the circuit board is positioned farther away from the plate portion of the light guide plate than an end face of an electronic component arranged in the first mounting area of ​​the circuit board.

9. A display device according to any one of claims 1 to 8, A watch case and a watch module provided within the watch case; A watch equipped with.

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