JP2014207544A - Mobile terminal and cover glass therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile terminal, such as a smartphone and a mobile telephone, having high visibility and a sophisticated design, emitting light at least from a side face part for the notification of an incoming call, for example, with a light emission range externally looked not as a dot shape but widely with uniform illuminance.SOLUTION: Light emitted from an LED 15 is incident from an inner face 11e of cover glass 11 to the inside of a first side plate 11b, so that most light reflects on an inclined plane 11f. Alternatively, light partially transmitting through the inclined plane 11f reflects on an inclined plane 12e of the side plate 11b of a housing 12, and is incident again from the inclined plane 11f to the first side plate 11b.

Description

  The present invention relates to a portable terminal and a cover glass for the portable terminal.

  In recent years, in addition to mobile phones and the like, thin communication mobile terminals such as smartphones and tablet personal computers are rapidly spreading. By the way, many of such portable terminals are provided with a function of notifying an incoming call by sounding when a call is received such as an email or a telephone. In general, the light emission structure is such that a light emitting surface of a light emitting element such as an LED provided inside the mobile terminal faces the outside, and light emitted from the light emitting surface is emitted to the outside directly or via a lens or the like. It is. However, in the case of such a structure, there is a problem that only the vicinity of the light emitting surface of the LED becomes bright and the visibility is poor, and the user is difficult to notice the incoming call. In addition, since a unique high-brightness graininess appears when an LED is used as a light source, it is not preferable from the viewpoint of design.

  In order to improve the visibility or to improve the design for such a problem, a structure that emits light in a plurality of directions from the surface of the casing of the mobile terminal has been proposed (see Patent Documents 1 and 2). .

JP 2001-268195 A JP 2006-191432 A

  Here, in patent document 1, the light radiate | emitted from the light emitting element is diffused by the unevenness | corrugation of the inner surface of a housing | casing, and light-emits outside. However, although there is a description in Patent Document 1 that the entire casing emits light, since the light-transmitting resin does not have an effective light guiding function, even if the uneven structure is provided, only the vicinity of the light emitting element emits light strongly. There was a problem that it was inferior in design. In particular, there is a problem that the difference in luminance between the vicinity of the light emitting element and the part away from the light emitting element becomes too large and the appearance is not good because the entire housing is forced to emit light.

  On the other hand, in patent document 2, the light radiate | emitted from LED inside a housing | casing is radiate | emitted outside via the light-transmitting resin half-deposited. According to the configuration of Patent Document 2, it is avoided to visually recognize an internal circuit board or the like by half vapor deposition of a light-transmitting resin, but only the vicinity of the light emitting element becomes bright at the time of light emission, and the unique high brightness granular feeling of LED Will remain, so there is a problem of poor design.

  The first object of the present invention is, for example, visibility and design, which emits light from at least the side surface part for notification of incoming calls and the like, and the light emission range does not look point-like from the outside and can be seen with a uniform illuminance over a wide range. It is to provide portable terminals such as smart phones and mobile phones. In particular, with the above object, it is an object of the present invention to provide a portable communication device that has low luminance unevenness in a light emitting region and high design. A second object of the present invention is to provide a cover glass used for the portable communication device shown in the first object, and having a light guide function.

The mobile terminal according to claim 1 is:
A cover glass formed integrally with an image transmission part covering the screen display part and a side part extending in a direction intersecting with the image transmission part;
A portable terminal having a light emitting element disposed in the cover glass,
A light beam emitted from the light emitting element is reflected at least once by a reflection surface formed on a part of the side surface portion, and then is emitted outside while being guided in the side surface portion.

  According to the present invention, the light beam emitted from the light emitting element is reflected at least once by the reflection surface formed on a part of the side surface portion, and then emitted to the outside while guiding the inside of the side surface portion. Even when the light emitting element is disposed near the surface of the mobile terminal, it can be emitted to the outside while being guided along a relatively long optical path. As a result, the side surface portion can emit light in a wide range while suppressing luminance unevenness while securing the thin shape of the portable terminal. Moreover, since it is difficult to visually recognize the light emitting element from the side surface portion, it is possible to provide a portable terminal with high visibility and design at the time of light emission. The “mobile terminal” includes various types such as a mobile phone, a smartphone, a tablet terminal, and a PDA (Personal Digital Assistant).

  According to a second aspect of the present invention, in the portable terminal according to the first aspect, the reflective surface is a slope formed at an edge of a side surface of the cover glass.

  If the reflecting surface is a slope formed at the edge of the side surface of the cover glass, it can be easily formed by molding.

  According to a third aspect of the present invention, in the portable terminal according to the first or second aspect, the reflective surface is covered on the opposite side to the incident side of the light beam emitted from the light emitting element with respect to the reflective surface. Thus, another member is provided.

  When the cover glass is made of a plate-like glass material, it is expected that the thickness is reduced and the impact is weakened by providing the reflection surface on a part of the side surface portion. Therefore, by covering and protecting the reflective surface with the separate member, it is possible to make it difficult to break against an impact when the mobile terminal falls. In addition, by providing the separate member, when the incident light to the reflection surface is transmitted, light can be shielded, and unintentional light emission to the outside can be suppressed to enhance the design.

  According to a fourth aspect of the present invention, in the portable terminal according to the third aspect, the separate member is a casing made of plastic.

  As a result, it becomes easy to form the casing even in a complicated shape, and the protective function of the cover glass is enhanced by the shock absorbing property of the plastic.

  According to a fifth aspect of the present invention, in the mobile terminal according to the third or fourth aspect, the separate member is formed by forming a reflective film on a surface adjacent to the reflective surface.

  By forming a reflective film on the surface adjacent to the reflective surface, when a part of incident light is transmitted through the reflective surface, it can be reflected and incident again on the side surface portion. Can be increased.

  According to a sixth aspect of the present invention, in the portable terminal according to any one of the first to fifth aspects, a reflective film is formed on the reflective surface of the cover glass.

  Accordingly, the light incident on the reflecting surface can be reflected as much as possible without depending on total reflection, and the light utilization efficiency can be increased.

  According to a seventh aspect of the present invention, in the mobile terminal according to any one of the first to sixth aspects, a plurality of the light emitting elements are provided.

  As a result, the amount of light emission can be increased, and visibility is improved.

The portable terminal according to claim 8 is characterized in that, in the invention according to any one of claims 1 to 7, the following conditional expression is satisfied.
20 ° ≦ θ1 <60 ° (1)
However, (theta) 1 is an angle which the said reflective surface and the inner surface facing the said reflective surface in the said side part make in the cross section orthogonal to the extension direction of the said side part.

When the value of the expression (1) is equal to or higher than the lower limit, the cover glass is less likely to be damaged by the received impact when the mobile terminal is dropped. Further, when the value of the expression (1) is less than the upper limit, the light traveling toward the image transmission portion is reduced and the light emitted to the outside from the side surface portion is increased. More preferably, the following expression is satisfied.
20 ° ≦ θ1 ≦ 45 ° (1 ′)

The portable terminal according to claim 9 is the invention according to any one of claims 1 to 8, wherein an outer surface of the side surface portion extends in a direction intersecting the reflection surface, and The following conditional expression is satisfied.
0 ° ≦ θ2 ≦ 10 ° (2)
However, θ2 is an angle formed by an inner surface facing the reflection surface in the side surface portion and the outer surface in a cross section orthogonal to the extending direction of the side surface portion. If any or all of the surface and the outer surface are curved surfaces instead of flat surfaces, the direction of the tangent of each point on the curved line is the line on the curved line in the curved line that is the intersection line with the cross section of each curved surface Θ1 and θ2 are determined by the angle formed by the directions of the weighted averages of the prime lengths.

  When the value of the formula (2) is equal to or higher than the lower limit, the mold releasability is improved and the moldability is improved when the cover glass is formed by molding. Moreover, the light emitted to the outside from the side surface portion can be made to be uniform, and unevenness in the illuminance distribution can be suppressed. In addition, when the value of the expression (2) is equal to or less than the upper limit, the light traveling toward the image transmitting portion is reduced, and the amount of light emitted to the outside from the side surface portion is increased.

  The portable terminal according to claim 10 is the invention according to any one of claims 1 to 9, wherein the straight line connecting an arbitrary point on the outer surface of the side surface portion and the light emitting element is drawn. Is characterized by intersecting with a non-transmissive member that does not transmit light.

  As a result, the light emitting element is made difficult to see through the cover glass, and the light emitted from the light emitting element can be prevented from being directly emitted to the outside from the side surface portion. It is possible to prevent the designability from being deteriorated due to the visible dots.

The cover glass according to claim 11 is a cover glass for a portable terminal in which an image transmission part covering a screen display part and a side part extending in a direction crossing the image transmission part are integrally formed. ,
A light beam emitted from a light-emitting element having a reflective surface formed on a part of the side surface portion and disposed in the cover glass is reflected at least once by the reflective surface, and then guided through the side surface portion. The light is emitted outside while shining.

  According to the present invention, the light beam emitted from the light emitting element is reflected at least once by the reflection surface formed on a part of the side surface portion, and then emitted to the outside while guiding the inside of the side surface portion. Even when the light emitting element is disposed near the surface of the mobile terminal, it can be emitted to the outside while being guided along a relatively long optical path. As a result, the side surface portion can emit light in a wide range while suppressing luminance unevenness while securing the thin shape of the portable terminal. Moreover, since it is difficult to visually recognize the light emitting element from the side surface portion, it is possible to provide a portable terminal with high visibility and design at the time of light emission.

  A cover glass for a mobile terminal according to a twelfth aspect of the present invention is the cover glass according to the eleventh aspect, wherein the reflecting surface is a slope formed at an edge of a side surface of the cover glass.

  If the reflecting surface is a slope formed at the edge of the side surface of the cover glass, it can be easily formed by molding.

  A cover glass according to a thirteenth aspect is characterized in that, in the invention according to the eleventh or twelfth aspect, a reflective film is formed on the reflective surface.

  Accordingly, the light incident on the reflecting surface can be reflected as much as possible without depending on total reflection, and the light utilization efficiency can be increased.

The cover glass of Claim 14 satisfies the following conditional expressions in the invention of any one of Claims 11-13.
20 ° ≦ θ1 <60 ° (3)
However, (theta) 1 is an angle which the said reflective surface and the inner surface facing the said reflective surface in the said side part make in the cross section orthogonal to the extension direction of the said side part.

When the value of the formula (1) is equal to or greater than the lower limit, the cover glass is less likely to be damaged by the received impact when the mobile terminal is dropped. Further, when the value of the expression (1) is less than the upper limit, the light traveling toward the image transmission portion is reduced and the light emitted to the outside from the side surface portion is increased. More preferably, the following expression is satisfied.
20 ° ≦ θ1 ≦ 45 ° (1 ′)

The cover glass according to claim 15 is the invention according to any one of claims 11 to 14, wherein an outer surface of the side surface portion extends in a direction intersecting the reflection surface, and The following conditional expression is satisfied.
0 ° ≦ θ2 ≦ 10 ° (4)
However, (theta) 2 is the angle which the inner surface facing the said reflective surface in the said side part and the said outer surface in the cross section orthogonal to the extension direction of the said side part.

  When the value of the formula (2) is equal to or higher than the lower limit, the mold releasability is improved and the moldability is improved when the cover glass is formed by molding. Moreover, the light emitted to the outside from the side surface portion can be made to be uniform, and unevenness in the illuminance distribution can be suppressed. In addition, when the value of the expression (2) is equal to or less than the upper limit, the light traveling toward the image transmitting portion is reduced, and the amount of light emitted to the outside from the side surface portion is increased.

  A cover glass according to a sixteenth aspect is characterized in that, in the invention according to any one of the eleventh to fifteenth aspects, a light extraction structure is provided on at least a part of the side surface portion.

  By providing the light extraction structure, the light guided through the side surface portion can be efficiently captured and emitted to the outside, the visibility is enhanced, and the design is enhanced by uniform light emission.

  According to a seventeenth aspect of the present invention, in the cover glass according to the sixteenth aspect, the light extraction structure is formed by printing.

  With such a light extraction structure, mass production is possible.

  According to an eighteenth aspect of the present invention, in the cover glass according to the sixteenth aspect, the light extraction structure is a fine structure formed on the side surface portion.

  Such a light extraction structure can be formed simultaneously with the molding of the cover glass, for example.

  The cover glass according to claim 19 is characterized in that, in the invention according to any one of claims 11 to 18, a half mirror structure is applied to at least a part of a peripheral edge portion of the screen transmission portion.

  By forming the half mirror structure, it is possible to hide the internal structure of the light emitting element so that it cannot be seen, and when the light emitting element emits light, the light is also taken out from the half mirror structure to receive the incoming light. Visibility such as time can be improved.

  According to the present invention, for example, a smartphone with high visibility and design that emits light from at least a side surface portion for notification of incoming calls and the like, and the light emission range does not look like dots from the outside and is visible with a uniform illuminance over a wide range. In addition, a mobile terminal such as a mobile phone can be provided. In particular, for the above-described purpose, a portable communication device with high brightness and small design unevenness in the light emitting region can be provided. Moreover, according to this invention, it is a cover glass used for the portable communication apparatus shown by the said objective, Comprising: The cover glass which has a function of a light guide can be provided.

It is a disassembled perspective view of the portable terminal concerning this Embodiment. It is a transversal direction sectional view of portable terminal 10 shown in an assembled state. It is sectional drawing similar to FIG. 2 of portable terminal 10 'concerning a modification. It is sectional drawing similar to FIG. 2 of Example 1 suitable for this Embodiment, Comprising: The light path from LED based on simulation is shown collectively. It is sectional drawing similar to FIG. 2 of Example 2 suitable for this Embodiment, Comprising: The light path from LED based on simulation is shown collectively. It is sectional drawing similar to FIG. 2 of Example 3 suitable for this Embodiment, Comprising: The light path from LED based on simulation is shown collectively. It is sectional drawing similar to FIG. 2 of Example 4 suitable for this Embodiment, Comprising: The light path from LED based on simulation is shown collectively. It is sectional drawing similar to FIG. 2 of a comparative example, Comprising: The light path from LED based on simulation is shown collectively.

  Embodiments according to the present invention will be described below. FIG. 1 is an exploded perspective view of the mobile terminal according to the present embodiment. In FIG. 1, a portable terminal 10 includes a cover glass 11, a housing 12, a circuit board 13 for image display, a light emission drive circuit board 14, and an LED 15 that is a light emitting element. A circuit board 13 is sandwiched between a cover glass 11 and a housing 12 that are bonded to each other during assembly. The light emission drive circuit board 14 is assembled so as to be orthogonal to the circuit board 13 in the vicinity of both edges in the short direction of the circuit board 13. The LEDs 15 are installed at equal intervals on the surface 14 a facing outward of the light emission drive circuit board 14. The light emission drive circuit board 14 may be provided only on one side of the circuit board 13.

  In FIG. 1, the cover glass 11 is integrally formed from glass or plastic, and has a rectangular part (image transmission part) 11a having a long side and a short side, and a longitudinal side edge of the rectangular part 11a. It has the 1st side board part (side part) 11b, 11b extended substantially at right angle, and the 2nd side board part 11c, 11c extended at substantially right angle from the transversal direction side edge of the rectangular-shaped part 11a. The rectangular part 11a covers the display on the circuit board 13 as an image display part (arranged on the back side of the circuit board 13 in FIG. 1), and the range indicated by the dotted line in the rectangular part 11a in FIG. It becomes the area | region A which permeate | transmits the done image. When the cover glass is formed from glass, molding using a direct press method is preferable.

  The casing 12 serving as a separate member is formed of glass or plastic, and includes a bottom plate portion 12a facing the rectangular portion 11a and a side plate portion 12b extending at right angles from the longitudinal side edge of the bottom plate portion 12a. .

  FIG. 2 is a cross-sectional view in the short-side direction of the mobile terminal 10 shown in an assembled state, but a part of it is omitted. The first side plate portion 11b of the cover glass 11 extending in the direction perpendicular to the paper surface includes an outer surface 11d orthogonal to the surface 11h of the rectangular portion 11a, an inner surface 11e, and a slope (reflective surface) 11f formed on the edge side of the outer surface 11d. And have. If the intersecting portion between the inner surface 11e and the slope 11f is sharp, it is likely to be chipped due to an inadvertent force during assembly or the like, and therefore, a small plane (or chamfer) 11g is formed at the intersecting portion. The inclined surface 11f is arranged at a position facing the LED 15 attached to the light emission drive circuit board 14.

  A reflective film is preferably formed on the inclined surface 11f by sputtering, vapor deposition, or the like. A light extraction structure 16 schematically illustrated is formed on the outer surface 11a. The light extraction structure 16 can be obtained by, for example, applying ink mixed with a diffusing agent such as silica or titanium oxide onto a base material in a dot shape, but may be formed by printing such as screen printing or inkjet printing. Further, the light extraction structure is provided by roughening the outer surface 11d or forming a fine structure such as a V-shaped groove structure extending in a direction intersecting the rectangular portion 11a on the outer surface 11d. Also good. A similar light extraction structure may be provided on at least a part of the inner surface 11e.

  In FIG. 2, h is the height of the outer surface 11 d of the cover glass 11. Since the thickness of recent smartphones, which are examples of mobile terminals, is about 7 mm to 10 mm, h is preferably 2 mm or more and 7 mm or less. More desirably, it is 3 mm or more and 6 mm or less. The thickness of the cover glass 11 is preferably about 1 mm at the maximum.

  Thus, since h is relatively small in a thin portable terminal, in order to efficiently and uniformly extract light from the outer surface 11d of the first side plate portion 11b of the cover glass 11, more light is incident on the inclined surface 11f. It is desirable to determine the angle of the slope 11f so that it is reflected, and to determine the angle of the inner surface 11e so that the outer surface 11d can be illuminated uniformly. The conditions for this are shown below.

When the angle between the inclined surface 11f and the inner surface 11e is θ1, and the angle between the outer surface 11d and the inner surface 11e is θ2, it is preferable that the following expression holds.
20 ° ≦ θ1 <60 ° (1)
0 ° ≦ θ2 ≦ 10 ° (2)

  On the other hand, the side plate portion 12b of the housing 12 includes an outer surface 12c that intersects the back surface of the bottom plate portion 12a, an inner surface 12d that rises short from the bottom plate portion 12a in parallel to the outer surface 12c, and a slope 12e that is formed on the edge side from the inner surface 12d. Have. The slope 12e has substantially the same shape as the slope 11f, and is disposed adjacent to the slope 12e. That is, since the side plate portion 12b exists outside the inclined surface 11f and covers the inclined surface 11f, the first side plate portion 11b of the thin and sharp cover glass 11 is protected from an impact when the mobile terminal 10 is dropped. It has a function. When the reflective film is not provided on the slope 11f of the cover glass 11, it is preferable that the reflective film is formed on the slope 12e by sputtering or vapor deposition.

  In the present embodiment, the circuit board 13 made of a light non-transmissive member projects over the LED 15 like a ridge and functions as a light shielding member, and the light emitted from the LED 15 is transmitted through the rectangular plate-like portion 11a of the cover glass 11 or The first side plate portion 11b is partially shielded from light so as not to be emitted directly from the outer surface 11d. That is, when a straight line connecting an arbitrary point on the outer surface 12 c of the side surface portion 12 b and the LED 15 is drawn, the straight line intersects the circuit board 13. Thereby, the design property is improved so that the high-luminance light emitting point of the LED 15 is not visually recognized from the surface 11h or the outer surface 11d.

  The operation of the mobile terminal 10 will be described. When the mobile terminal 10 receives an incoming call, an incoming signal is transmitted to the drive circuit on the light emission drive circuit board 14 via a circuit (not shown), and thereby the LED 15 emits light. As shown by the arrows in FIG. 2, the emitted light from the LED 15 enters the first side plate portion 11b from the inner surface 11e of the cover glass 11, and most of the light is reflected by the inclined surface 11f. Alternatively, the light that has been transmitted through the inclined surface 11f is reflected by the inclined surface 12e of the side plate portion 11b of the housing 12, and is incident on the first side plate portion 11b again from the inclined surface 11f.

  The light reflected by the inclined surface 11f or the inclined surface 12e is guided in the first side plate portion 11b, totally reflected by the inner surface 11e, and then incident on the outer surface 11d facing the same. Since the light extraction structure 16 is formed on the outer surface 11d, the light incident on the diffusion dots is diffused in various directions. Thereby, when the outward light is emitted, the entire outer surface 11d emits light, and the thin portable terminal 10 having excellent design can be provided.

  FIG. 3 is a cross-sectional view similar to FIG. 2 of a mobile terminal 10 ′ according to a modification. In FIG. 3, the corners between the surface 11h of the rectangular portion 11a of the cover glass 11 and the outer surface 11d of the first side plate portion 11b are connected by a curved surface 11i, thereby suppressing chipping and the like. . Further, on the surface 11h of the rectangular portion 11a, a half mirror structure 11j that transmits part of the light but reflects the rest is formed around the area A that transmits the displayed image. The internal structure of the mobile terminal 10 ′ can be made difficult to see through the periphery of the region A through which the transmitted image is transmitted, and the internal light emitted by the LED 15 can be transmitted. The half mirror structure 11j may be formed up to the outer surface 11d so as to cover the curved surface 11i, or may be provided in the above-described embodiment.

  Furthermore, in this modification, a thin flat surface 12g is formed by scraping off the tip of the side plate portion 12b of the housing 12, and a flat surface 11k that intersects the inclined surface 11f of the cover glass 11 is formed so as to face this. The cover glass 11 and the housing 12 can be bonded by applying an adhesive between the plane 12g and the plane 11k. Other configurations are the same as those of the above-described embodiment.

Example 1
FIG. 4 is a cross-sectional view similar to FIG. 2 of Example 1 suitable for the above-described embodiment. In Example 1, all the inner surface sides of the side plate portions of the housing are inclined. In Example 1, θ1 = 25 ° and θ2 = 3 °.

(Example 2)
FIG. 5 is a cross-sectional view similar to FIG. 2 of Example 2 suitable for the above-described embodiment. Also in Example 2, all the inner surface sides of the side plate portions of the housing are inclined. In Example 2, θ1 = 25 ° and θ2 = 0 °.

Example 3
FIG. 6 is a cross-sectional view similar to FIG. 2 of Example 3 suitable for the above-described embodiment. In the third embodiment, as in FIG. 2, the side plate portion of the housing has an inner surface and an inclined surface intersecting with the inner surface. In Example 3, θ1 = 45 ° and θ2 = 0 °.

Example 4
FIG. 7 is a sectional view similar to FIG. 2 of Example 4 suitable for the above-described embodiment. In the fourth embodiment, as in FIG. 2, the side plate portion of the housing has an inner surface and an inclined surface that intersects with the inner surface. In Example 4, θ1 = 45 ° and θ2 = 3 °.

(Comparative example)
FIG. 8 is a cross-sectional view similar to FIG. 2 of the comparative example. In the comparative example, as in the first and second embodiments, the entire inner surface side of the side plate portion of the housing is an inclined surface. In the comparative example, θ1 = 65 ° and θ2 = 3 °.

  4 to 9, it is clear that in the case of Examples 1 to 4, the light emitted from the LED is reflected on the slope, then guided in the cover glass, and emitted uniformly from the outer surface. It has become. On the other hand, in the comparative example, since the slope of the slope is shallow, only the outer surface near the casing emits light, and thus the design is inferior. Therefore, it can be seen that θ1 is preferably 20 ° or more and less than 60 °.

  In Examples 3 and 4, a part of the light reflected by the slope is also emitted from the periphery of the rectangular part. For example, there is a case where the user takes an image of his / her face using the imaging function of the mobile terminal and performs makeup or the like in a state where the captured face is displayed on the display (in the region A in FIG. 1). 4, the user's face can be brightly illuminated by light emitted from the periphery of the cover glass by causing the internal LED to emit light, so that makeup can be performed more preferably.

  The present invention is not limited to the embodiments described in the specification, and other embodiments and modifications are apparent to those skilled in the art from the embodiments and ideas described in the present specification. It is. For example, a slope may be provided on the first side plate portion of the cover glass, or alternatively, a slope may be provided on the second side plate portion to reflect light from the LED. The timing of LED emission is not limited to incoming calls. Furthermore, the rectangular part and the side part may have a curved surface with a continuous outer surface.

10 mobile terminal 11 cover glass 11a rectangular portion 11a outer surface 11a rectangular portion 11b first side plate portion 11c second side plate portion 11d outer surface 11e inner surface 11f slope 11h surface 11i curved surface 11j half mirror structure 11k flat surface 12 housing 12a bottom plate portion 12b side plate Part 12c Outer surface 12d Inner surface 12e Slope 12g Plane 13 Circuit board 14 Light-emitting drive circuit board 14a Surface 15 LED
16 Light extraction structure

Claims (19)

A cover glass formed integrally with an image transmission part covering the screen display part and a side part extending in a direction intersecting with the image transmission part;
A portable terminal having a light emitting element disposed in the cover glass,
The light emitted from the light emitting element is reflected at least once by a reflecting surface formed on a part of the side surface, and then is emitted outside while guiding the inside of the side surface. .   The mobile terminal according to claim 1, wherein the reflection surface is a slope formed at an edge of a side surface portion of the cover glass.   3. The mobile phone according to claim 1, wherein another member is provided on the opposite side of the reflection surface to the incident side of the light beam emitted from the light emitting element so as to cover the reflection surface. Terminal.   The mobile terminal according to claim 3, wherein the separate member is a casing made of plastic.   The mobile terminal according to claim 3 or 4, wherein the separate member is formed by forming a reflective film on a surface adjacent to the reflective surface.   The mobile terminal according to claim 1, wherein a reflective film is formed on the reflective surface of the cover glass.   The mobile terminal according to claim 1, wherein a plurality of the light emitting elements are provided. The mobile terminal according to claim 1, wherein the following conditional expression is satisfied.
20 ° ≦ θ1 <60 ° (1)
However, (theta) 1 is an angle which the said reflective surface and the inner surface facing the said reflective surface in the said side part make in the cross section orthogonal to the extension direction of the said side part. The mobile terminal according to any one of claims 1 to 8, wherein an outer surface of the side surface portion extends in a direction intersecting the reflective surface and satisfies the following conditional expression.
0 ° ≦ θ2 ≦ 10 ° (2)
However, (theta) 2 is the angle which the inner surface facing the said reflective surface in the said side part and the said outer surface in the cross section orthogonal to the extension direction of the said side part.   10. The straight line that intersects with a non-transmissive member that does not transmit light when a straight line connecting an arbitrary point on the outer surface of the side surface portion and the light emitting element is drawn. The mobile terminal according to Crab. A cover glass for a portable terminal in which an image transmission part covering a screen display part and a side part extending in a direction intersecting with the image transmission part are integrally formed,
A light beam emitted from a light-emitting element having a reflective surface formed on a part of the side surface portion and disposed in the cover glass is reflected at least once by the reflective surface, and then guided through the side surface portion. A cover glass for a portable terminal, which emits light to the outside while being illuminated.   The cover glass for a mobile terminal according to claim 11, wherein the reflection surface is a slope formed at an edge of a side surface of the cover glass.   The cover glass for a portable terminal according to claim 11 or 12, wherein a reflection film is formed on the reflection surface. The cover glass for mobile terminals according to claim 11, wherein the following conditional expression is satisfied.
20 ° ≦ θ1 <60 ° (3)
However, (theta) 1 is an angle which the said reflective surface and the inner surface facing the said reflective surface in the said side part make in the cross section orthogonal to the extension direction of the said side part. 15. The mobile terminal according to claim 11, wherein an outer surface of the side surface portion extends in a direction intersecting with the reflection surface, and satisfies the following conditional expression: Cover glass.
0 ° ≦ θ2 ≦ 10 ° (4)
However, (theta) 2 is the angle which the inner surface facing the said reflective surface in the said side part and the said outer surface in the cross section orthogonal to the extension direction of the said side part.   The cover glass for a portable terminal according to any one of claims 11 to 15, wherein a light extraction structure is provided on at least a part of the side surface portion.   The cover glass for a mobile terminal according to claim 16, wherein the light extraction structure is formed by printing.   The cover glass for a mobile terminal according to claim 17, wherein the light extraction structure is a fine structure formed on the side surface portion.   The cover glass for a portable terminal according to any one of claims 11 to 18, wherein a half mirror structure is applied to at least a part of a peripheral edge portion of the screen transmission portion.

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