KR100781265B1 - Mobile communication terminal with projection function - Google Patents

Abstract

The present invention relates to a mobile communication terminal having a projection function. To this end, the present invention is a mobile communication terminal comprising a terminal body having a plurality of keypads installed, a cover having a liquid crystal display for display and connected to the terminal body, the light transmitting member and the light on the first surface of the member At least one optical support supported on at least one of the first and second surfaces of the member and reflecting and imaging light incident from the light source into the member; And an internal means for embedding the optical system for the projector and the optical system for the projector.

Mobile communication terminal, projection, light source, optical element, light transmitting member

Description

A mobile phone having with projection function

1 is a perspective view showing an optical system for a projector in a mobile communication terminal having a projection function according to an embodiment of the present invention;

2 is a side cross-sectional view of the optical system for a projector shown in FIG. 1;

3 to 7 are views each showing a DOE lens usable in an optical system for a projector in a mobile communication terminal having a projection function according to the present invention;

8 is a perspective view showing an open state of a mobile communication terminal having a projection function according to the present invention;

9 is a rear perspective view illustrating an open state of a mobile communication terminal having a projection function according to the present invention;

10 is a perspective view showing that the optical system for a projector according to the present invention is accommodated in a cylindrical housing;

11 is an exploded perspective view of the cylindrical housing shown in FIG. 10;

12 and 13 are perspective views illustrating a cylindrical housing including an optical system for a projector shown in FIG. 10, respectively, being accommodated in a mobile communication terminal;

14 is a perspective view showing a state in which the optical system for a projector according to the present invention is mounted in a head mounted format to a mobile communication terminal;

15 is a side perspective view showing a state of use of the optical system for a projector shown in FIG. 14;

FIG. 16 is a front perspective view showing a usage state of the optical system for a projector shown in FIG. 14.

<Explanation of symbols for main parts of drawing>

10 light transmitting member 11 light source

11a: red light source 11b: green light source

11c: blue light source 12a-12f: optical element

20: mobile communication terminal 30: housing

32: cap 61: cover

62: support member 63: housing

64: connecting member

The present invention relates to a mobile communication terminal having a projection function, and more particularly, by installing an optical system for a projector inside and outside the mobile communication terminal to convert the display mode of the mobile communication terminal to the projector mode as needed, The present invention relates to a mobile communication terminal having a projection function that emits light on a screen of the screen to perform a project function.

Recently, as the use of mobile communication terminals such as cellular mobile communication terminals, personal mobile communication terminals, personal data communication terminals, frequency common communication terminals, and smart phones has become more common, users' demand for improving the performance and functions of mobile communication terminals has gradually increased. Various multimedia functions are provided.

Recently, the market for mobile communication terminals is gradually expanding due to the application of services, such as cameras, music, the Internet, and digital multimedia broadcasting (DMB). As described above, a digital display device such as an LCD is used to provide a high quality display as the function of the mobile communication terminal is enhanced, but such a display method has been limited in display size. That is, in order to increase the size of the display window of the mobile communication terminal, the size of the liquid crystal display device must be increased, but this causes a problem of immediately increasing the size of the mobile communication terminal, thereby reducing the weight and size of the mobile communication terminal. Although the miniaturization has to be made, the image size needs to be enlarged.

The present invention was devised to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a projection function in a mobile communication terminal so as to convert the display mode of the mobile communication terminal to a projector mode as necessary, The present invention provides a mobile communication terminal having a projection function capable of emitting light to overcome a size limitation of a display window.

SUMMARY OF THE INVENTION An object of the present invention is a mobile communication terminal comprising a terminal body having a plurality of keypads installed thereon, and a lid having a liquid crystal display for display and connected to the terminal body. At least one light source that emits light and a light source that is supported on at least one of the first and second surfaces of the member, and reflects and images light incident from the light source into the member and exits the member; It is achieved by a mobile communication terminal having a projection function configured to include an optical system for a projector composed of an optical element and built-in means in which the optical system for the projector is incorporated.

Preferably the optical system for a projector in this invention is supported on at least one of a light transmissive member, a light source for emitting light onto a first side of the member, and a first side and a second side of the member. And at least one optical element that reflects and images light incident from the light source into the member and exits the member.

In the present invention, the light transmitting member is made of glass or plastic, and is characterized in that the inside is a hollow type member filled with air or vacuum.

In addition, the cross-section of the light transmitting member in the present invention is characterized in that any one of the shape of a circle, semi-circle, triangle, polygon.

In the present invention, the light transmissive member may have a linear and flat surface.

Further, in the present invention, the region of the entire surface of the light transmissive member on which the optical element is supported is characterized in that the surface protrudes or is concave.

In the present invention, the first and second surfaces of the light transmissive member face each other.

In the present invention, the light source is characterized in that any one of a laser diode, a light emitting diode, an organic EL device.

In the present invention, the light source is characterized in that the light emitting device or a light emitting device array for irradiating a beam of a single wavelength or different wavelengths.

Further, in the present invention, the light source is characterized in that it is supported on the first surface of the light transmissive member or located a predetermined distance away from the first surface.

In the present invention, the light source includes a red light source for generating red light, a green light source for generating green light, and a blue light source for generating blue light.

In addition, in the present invention, the red light source, the green light source, and the blue light source are characterized in that they are arranged side by side in a straight line on the same plane.

In the present invention, the optical element is at least one of a diffractive optical element, a holographic optical element, a plane mirror, a micro display, a scan mirror.

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In the present invention, the optical element supported on the first surface of the light transmissive member is composed of at least one DOE lens and at least one scan mirror, and the optical element supported on the second surface of the light transmissive member The DOE lens and at least one plane of the mirror is characterized in that composed of.

In the present invention, the optical elements supported on at least one of the first and second surfaces of the light transmitting member are arranged in parallel with each other.

In the present invention, the optical element supported on the first surface of the light transmissive member and the optical element supported on the second surface of the light transmissive member are arranged to be offset from each other by a predetermined angle.

Further, in the present invention, the optical elements having the drive circuit are disposed on the first surface of the light transmissive member, and the optical elements without the drive circuit are disposed on the second surface of the light transmissive member.

In the present invention, the built-in means has a cylindrical housing body with an open top, and a pleat for mounting the user's hand on the outer circumferential surface thereof, the one end of which protrudes to a smaller diameter from one side of the pleat portion to the housing body. It is characterized by consisting of a cover inserted into a predetermined depth.

In addition, in the present invention, the outer peripheral side of the cover is characterized in that a hole of a predetermined diameter to which the scanned light from the scan mirror is emitted.

In the present invention, the built-in means is a support member rotatably mounted on the upper surface of the cover of the mobile communication terminal, the connecting member which slides back and forth in the receiving groove formed along the longitudinal direction of the upper surface of the support member; And a housing hinged to one end of the connection member.

In addition, the built-in means in this invention is characterized in that it is installed on the inside of the terminal body or the top of the cover.

Hereinafter, preferred embodiments of a mobile communication terminal having a projection function according to the present invention will be described in detail with reference to the accompanying drawings.

In general, a projection display system is a system for displaying a large screen by enlarging and projecting a small screen. In recent years, a projection display system has a large size using a laser light that is excellent in straightness and easily predicts a path due to reflection and refraction as a light source. Research and development on how to implement the screen is being done.

Using a laser as a light source has the advantage that the color of the image is clear, close to pure color, and has a wide range of color reproduction, and a high contrast allows a clear image to be obtained.

Projection displays using R / G / B lasers have a wide color temperature, so that the color of an image displayed on a large screen can be displayed close to natural colors, and can produce an image that is not pixelated. have.

In addition, the laser projection display has recently emerged in the high information society and multimedia industry to meet the demand for large display and high definition of display devices. It is expected to be used in various fields such as shows and large-scale television image display.

1 is a perspective view showing an optical system for a projector in a mobile communication terminal having a projection function according to an embodiment of the present invention, Figure 2 is a side cross-sectional view of the optical system for a projector shown in Figure 1, the present invention The optical system is composed of a light transmissive member 10, a light source 11, and a plurality of optical elements 12a-12f.

The light transmissive member 10 may be a glass, plastic, a hollow type member having an air or a vacuum therein, and any material that can transmit light well, and may have a size according to an optical design. Is determined.

In some cases, the cross section of the light transmissive member 10 may be manufactured as a circle, a semicircle, a triangle, a polygon, or the like. In the embodiment of the present invention, the light transmissive member 10 may be manufactured to have a linear and flat surface.

In addition, depending on the design, a region where the optical elements 12a to 12f are supported among the entire surfaces of the light transmissive member 10 may be manufactured to protrude or concave. For example, when the cross section of the light transmissive member 10 is made of a semicircle or a triangle, the first face 10a protrudes into a semicircle or a triangle and the second face 10b has a flat surface, or The first face 10a may have a flat surface, and the second face 10b may be manufactured to protrude in a semicircle or triangle. The light source 11 emits light onto the first surface 10a of the light transmissive member so that the light is transmitted into the light transmissive member 10.

Here, the light source 11 may be a laser diode, a light emitting diode, an organic electroluminescent element, or the like. Preferably, the optical system may be configured using a laser diode to further reduce the size of the optical communication device. .

In some cases, a light emitting device for irradiating a beam of a single wavelength or a light emitting device for irradiating beams of different wavelengths may be manufactured and used in an array form.

In the embodiment of the present invention, the light source 11 includes a red light source 11a for generating red light, a green light source 11b for generating green light, and a blue light source 11c for generating blue light. (11a), the green light source 11b, and the blue light source 11c were manufactured so that they might be arranged side by side on the same surface.

The light source 11 may be supported on the first surface 10a of the light transmissive member 10 or supported by another member spaced apart from the first surface by a predetermined distance.

The optical elements 12a to 12f are supported on at least one of the first surface 10a and the second surface 10b of the light transmissive member 10 and transmit light incident from the light source 11 to the light transmissive member. (10) It is reflected and imaged inside to exit the light transmissive member (10).

In the embodiment of the present invention, the first surface 10a and the second surface 10b of the light transmissive member 10 are formed to face each other. The optical elements 12a to 12f may include a diffraction optical element (DOE), a hologram optical element, a plane mirror, a micro display, and a scan mirror. Any one can be used.

In an embodiment of the present invention, the optical element supported on the first surface 10a of the light transmissive member 10 consists of at least one diffraction optical element (DOE) lens 12d and at least one scan mirror 12f. The optical element supported on the second surface 10b of the light transmissive member 10 is composed of a plurality of DOE lenses 12a-12c and at least one plane mirror 12e.

Here, the optical elements supported on at least one of the first surface 10a and the second surface 10b of the light transmissive member 10 are configured to be arranged in a line with each other in a line with each other. The optical elements 12d and 12f supported on the first surface 10a and the optical elements 12a, 12b, 12c and 12e supported on the second surface 10b may be disposed to be offset from each other by a predetermined angle. This is because the light transmission path can be minimized.

In order to optimize the configuration of the optical system of the present invention, optical elements having a driving circuit are disposed on the first surface 10a of the light transmissive member 10, and the second surface 10b of the light transmissive member 10 is disposed. It is preferable to arrange the optical elements having no driving circuit on the upper side), because the configuration of the elements that require the circuit configuration to one side, it is useful to use the space can further reduce the size of the optical system.

3 to 7 are diagrams illustrating DOE lenses usable in an optical system for a projector in a mobile communication terminal having a projection function according to the present invention, and various DOE lenses may be used according to the design of the optical system.

8 is a perspective view illustrating an open state of a mobile communication terminal having a projection function according to the present invention, and FIG. 9 is a rear perspective view illustrating an open state of a mobile communication terminal having a projection function according to the present invention. An optical system for a projector having a configuration is fixed to one side of the inside of the terminal body 21 of the clamshell mobile communication terminal 20 in a width direction, and at this time, an external screen (not shown) through the scan mirror 12f. A light projection hole 20a is formed at one side of the upper portion (antenna protrusion) of the mobile communication terminal 20 so as to project the light.

As described above, when the display mode of the mobile communication terminal 20 is converted to the projector mode, the present invention configured as described above may have a red light source as shown in FIGS. 1, 2, 8, and 9. 11a), the green light source 11b, and the blue light source 11c emit light to the first surface 10a of the light transmissive member 10 in accordance with an external video signal.

The light emitted from the light source 11 is a DOE lens, which is an optical element 12a, 12b, 12c, which is transmitted through the light transmissive member 10 and supported on the second surface 10b, which is the opposite side of the light transmissive member 10, respectively. Incident.

At this time, the DOE lenses, which are the optical elements 12a, 12b, and 12c, are arranged to deviate by a predetermined angle from the light source 11, so that the light source 11 tilts the light at a predetermined angle and emits the light.

The DOE lenses, which are optical elements 12a, 12b, and 12c, respectively, diffract incident light and exit to DOE lenses, which are other optical elements 12d supported on the first surface 10a of the light transmissive member 10. .

The DOE lens, which is another optical element 12d, synthesizes the light diffracted from the optical elements 12a, 12b, and 12c, and is another optical element formed on the second surface 10b of the light transmissive member 10. It exits to the mirror 12e.

The plane mirror 12e reflects the light synthesized from the optical element 12d to the scan mirror 12f, which is another optical element formed on the first surface 10a of the light transmissive member 10.

The scan mirror 12f scans the light reflected from the plane mirror 12e and transmits the light transmissive member 10 through the hole 20a of the mobile communication terminal 20 according to a control signal outside the light transmissive member 10. Exit to the outside screen.

10 is a perspective view showing that the optical system for a projector according to the present invention is housed in a cylindrical housing, FIG. 11 is an exploded perspective view of the cylindrical housing shown in FIG. 10, and FIGS. 12 and 13 respectively show the projector shown in FIG. 10. 10 is a perspective view illustrating a cylindrical housing having an optical system for receiving the mobile communication terminal, and as illustrated in FIGS. 10 and 11, a projector according to the present invention inside a cylindrical housing main body 31 having an open top. A built-in optical system, and has the same shape as that of the housing main body 31, and a wrinkle portion 32a is formed on the outer circumferential surface of the user, and protrudes to a smaller diameter from one side of the wrinkle portion 32a. A cover 32 is fitted to the housing main body 31 with a predetermined depth through an outer circumference of the portion 32b.

The outer circumferential side of the cover 32 is formed with a hole 32c having a predetermined diameter through which the scanned light of the scan mirror 12f is emitted, as shown in FIGS. 12 and 13. 30 is installed in one of the folder-type mobile communication terminal 40 or one side of the terminal body 41 and 51 of the bar-type mobile communication terminal 50, and then the mobile communication terminal 40 ( Converts the display mode of the display 50 to the projector mode, rotates the cover 32 through the pleats 32a so that the hole 32b is positioned above the scan mirror 12f, and then The light is emitted to the screen outside the light transmissive member 10 through the scan mirror 12f, and unlike FIG. 8 and FIG. 9, the projection function may be performed behind the mobile communication terminals 40 and 50.

FIG. 14 is a perspective view illustrating a state in which an optical system for a projector according to the present invention is mounted in an external type of a head mounted type in a mobile communication terminal, and FIG. 15 is a side view illustrating a state of use of the optical system for a projector shown in FIG. 14. FIG. 16 is a front perspective view showing a state of use of the optical system for the projector shown in FIG. 14, wherein the supporting member 63 is rotatably mounted on the upper surface of the cover 61 of the clamshell mobile communication terminal 60. However, a receiving groove 63a of a predetermined depth is formed along the longitudinal direction of the upper surface of the support member 63, and the connecting member 65 having a hexahedron shape is accommodated in the storage groove 63a so as to be slidable back and forth. .

In addition, one end of the connecting member 65 is hingedly connected to the housing 64 in which the optical system for the projector according to the present invention is embedded, so that the cover 61 is used when the projector is to be used in the projector mode. After opening and pulling the connecting member 65, the supporting member 63 is rotated in the vertical direction with the cover 61.

Subsequently, when the display mode of the mobile communication terminal 60 is converted into the projector mode, as described above, the light emitted from the light source 11 is converted to the optical elements 12a, 12b, 12c and another optical element 12d. The light exits through the plane mirror 12e and the scan mirror 12f to the screen outside the light transmissive member 10, and reference numeral 62 in the figure denotes the terminal body.

As described above, a mobile phone terminal having a projection function according to the present invention has been described with reference to the illustrated drawings. However, the present invention is not limited by the embodiments and drawings disclosed herein, and is provided to those skilled in the art within the technical scope of the present invention. Of course, various modifications can be made.

As described above, according to the present invention, as the mobile communication terminal has a projection function, the display mode of the mobile communication terminal is converted into the projector mode as needed to meet the trend of light weight and miniaturization of the mobile communication terminal, This can be useful to overcome the size limitation of the display window.

Claims (22)

In the mobile communication terminal comprising a terminal body having a plurality of keypads installed, and a cover connected to the terminal body having a liquid crystal display for display, A light transmissive member, a light source for emitting light onto the first surface of the member, and supported on at least one of the first and second surfaces of the member, and reflecting light incident from the light source into the member And at least one optical element configured to image and exit to the outside of the member. And And a built-in means in which the optical system for the projector is built-in. delete The method of claim 1, The light transmissive member is made of glass or plastic, and a mobile communication terminal having a projection function, characterized in that the inside is a hollow (hollow type) member filled with air or vacuum. The method of claim 1, A cross section of the light transmissive member is a mobile communication terminal having a projection function, characterized in that any one of the shape of a circle, semi-circle, triangle, polygon. delete The method of claim 1, And a region in which the optical element is supported among the entire surfaces of the light transmissive member is protruded or concave. The method of claim 1, And a first surface and a second surface of the light transmissive member facing each other. The method of claim 1, The light source is a mobile communication terminal having a projection function, characterized in that any one of a laser diode, a light emitting diode, an organic EL device. The method of claim 1, The light source is a mobile communication terminal having a projection function, characterized in that the light emitting device or a light emitting device array for irradiating a beam of a single wavelength or different wavelengths. The method of claim 1, And the light source is supported on the first surface of the light transmissive member or is spaced apart from the first surface by a predetermined distance. The method of claim 1, The light source includes a red light source for generating red light, a green light source for generating green light, and a blue light source for generating blue light. The method of claim 11, The red light source, the green light source, and the blue light source are mobile communication terminals having a projection function, characterized in that arranged in parallel on the same side of each other. The method of claim 1, And the optical element is at least one of a diffraction optical element, a hologram optical element, a plane mirror, a micro display, and a scan mirror. delete The method of claim 1, The optical element supported on the first side of the light transmissive member consists of at least one DOE lens and at least one scan mirror, and the optical element supported on the second side of the light transmissive member comprises at least one DOE lens and at least one. A mobile communication terminal having a projection function, characterized in that consisting of a plane mirror. The method of claim 1, And the optical elements supported on at least one of the first and second surfaces of the light transmitting member are arranged in a line with each other. The method of claim 1, And an optical element supported on the first surface of the light transmissive member and an optical element supported on the second surface of the light transmissive member are arranged to be offset from each other by a predetermined angle. The method of claim 1, And arranging optical elements having a driving circuit on the first surface of the light transmissive member, and arranging optical elements having no driving circuit on the second surface of the light transmissive member. delete delete The method of claim 1, The built-in means is a support member rotatably mounted on the upper surface of the cover of the mobile communication terminal, a connecting member which slides back and forth in the receiving groove formed along the longitudinal direction of the upper surface of the support member, and one end of the connection member A mobile communication terminal having a projection function, characterized in that it comprises a hinged housing. delete

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