JP2007140247A - Portable image display and cell phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid heat effects as much as possible when using an organic EL display in a small and high performance electronic device. <P>SOLUTION: It has main sections 100a, 100b connected together through a rotary hinge 102 and an image display section 101. When using, the main sections 100a, 100b are open with a predetermined angle at the rotary hinge 102 making the image display section 101 spread flat from a certain portion 109a of the main section 100a to a certain portion 109b of the main section 100b. The image display section 101, the main section 100a, and the main section 100b stay apart from one another except their joint 109. When not used, the main sections 100a and 100b are folded with the rotary hinge 102, and the image display section 101 is folded between the main sections 100a and 100b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable image display device using an electroluminescence display element and other display elements, and an image display unit or a part of the image display unit, and a main body or a main body thereof. The present invention relates to a mobile phone device provided as a part of the unit.

  An electroluminescence display device is sometimes referred to as an EL display or the like, and when the molecule once excited returns to its original state, almost no heat is generated. This is a display element utilizing a phenomenon of emitting light. A substance that causes such a phenomenon is used as a light emitter, vapor-deposited on a substrate made of glass or resin, and the light emission state on the substrate is changed by controlling the voltage applied to the substrate to display images, characters, etc. Can do. In addition to being able to obtain high brightness with low power, it has excellent characteristics in terms of visibility, response speed, life, power consumption, etc., and can be made thinner than a liquid crystal display, Since it is a self-luminous type, no additional member such as a backlight is required, and the display quality is also excellent.

  There are two types of electroluminescence display elements: an “inorganic EL display” using an inorganic substance such as zinc sulfide and an “organic EL display” using an organic substance such as diamines. However, inorganic EL displays have problems such as difficulty in color display. On the other hand, the organic EL display has many advantages not found in the inorganic EL display, and is expected to be used on the other side.

  The basic structure of an organic EL display is a sandwich type in which a light emitting layer is sandwiched between two electrodes. However, in order to take out light from the light emitting layer, one of the electrodes is transparent. For example, the anode (anode) is called “ITO (Indium Tin Oxide)”. Transparent electrodes are sometimes used.

  The organic layer which is a light emitting layer varies from one layer to multiple layers, and the role of each layer is also different. There are various organic molecules used in the light emitting layer, from low molecules to high molecules. In any case, the organic layer is characterized by being very thin as several hundred nm.

  The phenomenon of electroluminescence is also used in “light emitting diodes (LEDs)” using inorganic solid crystals such as gallium. However, since an LED has a p-type semiconductor and an n-type semiconductor joined together, there are carriers that play a role in electricity, but it differs greatly in that there are almost no carriers in the organic molecules of the organic EL element. ing. Therefore, in order to emit light with the organic EL element, it is necessary to inject holes and electrons from the anode and the positive electrode, respectively, and in order to emit light with high brightness and high efficiency, both carriers are balanced to the light emitting layer. Must be injected well.

Although there are such problems, the organic light emitting layer itself is very thin as described above, and if a base material that can be easily bent and is strong against bending is used, a flexible image display element can be configured. It has a very unique and excellent feature that other display elements do not have. As an example of utilizing the foldability of such an organic EL display element, the following patent document discloses a personal computer including a foldable display.
JP 2004-110303 A

  However, the organic EL display as described above is weak against heat and easily deteriorates when the temperature rises. Therefore, the device tends to deteriorate when exposed to high temperature, and the luminous efficiency is lowered. Or has a problem that the life is likely to be shortened.

  In recent years, electronic devices and products such as personal information devices have been steadily becoming higher performance and smaller.

  High performance has led to high integration of electrical elements such as semiconductor LSIs and an increase in operation speed, which induces heat generation of semiconductor LSIs and the like. In addition, downsizing increases the dependence of various components on the semiconductor LSI and at the same time induces higher integration, which also results in an increase in temperature.

  And, when the organic EL display having the excellent characteristics as described above is used in an electronic device such as such a high-performance and small-sized personal information device, it is affected by the heat generation, leading to an unfavorable result. Had problems.

  The present invention has been made to solve such a problem, and while using an organic EL display having excellent characteristics in an electronic device such as a high-performance and small-sized personal information device, The purpose is to achieve the maximum image quality, stable operation performance, excellent visibility, high response speed, long life, and low power consumption by avoiding the effects of heat generation.

  The invention according to claim 1 of the present patent application includes a first main body portion and a second main body portion that are connected by a rotation connecting portion, a joint portion that is a part of the first main body portion, and the An image display unit that is bonded to a bonding portion that is a part of the second main body portion, and the first main body portion and the second main body portion are predetermined in the rotary connection portion when used. The image display unit from the joint portion of the first main body portion to the joint portion of the second main body portion becomes one plane, and the image display portion and the first main body portion are opened. And the second body part is in a state where the parts other than the joint part are separated from each other, and the first body part and the second body part are folded at the rotation connecting part when not in use. The image display section is sandwiched between the first main body section and the second main body section. A folded state Te, a portable image display device.

  By adopting such a configuration, in electronic devices such as high-performance and small personal information devices, heat generated in the main body can be obtained with a simple structure without adding a special member such as a heat-dissipating sheet. Can maximize the effect of the image display on the image display unit, achieve high image quality, stable operation performance, and excellent visibility, and can be folded in a small size while being carried, while using a large screen when in use. become.

  The invention according to claim 2 of the present patent application is the portable image display device according to claim 1, wherein the predetermined angle is an angle of 90 degrees or more and less than 180 degrees.

  By adopting such a configuration, the bottom area of the portable image display device becomes relatively large and can be made independent without requiring any support. For example, the portable image display device is installed on a desk or the like for viewing. In addition, for example, when a 5.1ch sound is realized by installing five speakers and a bass woofer, it is also effective for enjoying the excellent sound quality.

  The invention according to claim 3 of the present patent application includes a joint portion between the first main body portion and the image display portion connected by the rotation connecting portion, and the image display of the second main body portion. A display image processing unit between the first main body unit and the image display unit in the second main body unit. The portable image display device according to claim 1, wherein either or both of an input unit and an audio output unit are provided outside the joint portion.

  By adopting such a configuration, it is possible to further reduce the size of a high-performance personal information device, and at the same time, avoid the influence of the heat generation on the image display unit as much as possible, and achieve high image quality, stable operation performance, and excellent visual recognition. Can be realized.

  Invention of Claim 4 which concerns on this patent application is a portable image display apparatus of any one of Claims 1-3 from which the said image display part is comprised with an electroluminescent display element. .

  By adopting such a configuration, while using an organic EL display having excellent characteristics in electronic devices such as high-performance and small-sized personal information devices, the influence of heat generation is maximally avoided. It becomes possible to realize high image quality, stable operation performance, excellent visibility, high response speed, long life, and low power consumption.

  In the invention according to claim 5 of the present patent application, the joining of the image display part in the joining part which is a part of the first body part and the part of the second body part is a predetermined amount or more. The portable image display device according to any one of claims 1 to 4, wherein when the force is applied, the bonding is released.

  By adopting such a configuration, when a force more than originally planned is applied to the main body part and the angle between the first main body part and the second main body part is to be opened, destruction or breakage may occur. It becomes possible to prevent it in advance.

  According to a sixth aspect of the present invention, the portable image display device according to any one of the first to fifth aspects includes the image display unit or a part of the image display unit, and the portable image display unit. A mobile phone device provided as a main body or a part of the main body.

  By adopting such a configuration, there is a space (gap) between the main body part and the image display part. For example, by inserting a finger into this gap, it is very easy to hold and hold a dial push button, etc. Even when the operation is performed, it is difficult to cause lateral shaking, and an excellent effect that the operation is stable can be obtained.

  According to the present invention, an organic EL display having excellent characteristics is used in an electronic device such as a high-performance and small-sized personal information device, and the influence of the heat generation on the image display unit is avoided as much as possible. High image quality, stable operation performance, excellent visibility, high response speed, long life, and low power consumption can be realized.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an external appearance of a portable television 100 which is the first embodiment of the portable image display device according to the present invention.

  The portable television 100 includes a main body unit 105 and an image display unit 101 as main components. The main body part 105 is divided into two parts (a main body part 105a and a main body part 105b) in detail, and the main body part 105a and the main body part 105b can be rotated by a hinge part 102 which is an embodiment of a rotary connecting part. It is connected to the. The main body unit 105 incorporates an electronic circuit for receiving, selecting, decoding, performing image processing and sound processing, and displaying / reproducing broadcast radio waves in the portable television 100.

  This electronic circuit is implemented as an LSI including a microcomputer, and is extremely small and thin, and can operate at high speed. At the same time, efforts have been made to reduce the power consumption as much as possible. However, such a high-performance LSI requires a relatively large amount of power consumption, and thus heat generation must be large.

  In addition, the main body unit 105 includes components necessary for configuring the portable television 100, such as a speaker 103 and an operation button switch 104. Note that in FIG. 1, the main body 105 a and the main body 105 b are illustrated as having one speaker 103, but this is merely an example. For example, five speakers and a bass woofer are included in the main body 105. It is also possible to realize 5.1ch sound by installing in 105a, main body part 105b, hinge part 102, image display part 101, and the like.

  Although the operation button switch 104 is not shown in detail in FIG. 1, for example, a power on / off switch of the portable television 100 itself, a channel setting switch, a channel up / channel down switch, a volume setting switch, a volume up / volume down switch Other image quality adjustment switches, mute switches, display changeover switches, and the like can be appropriately selected and provided.

  Further, as the operation button switch 104, not only a switch of a type that turns on and off various conductive contacts, but also a touch sensor type switch or the like can be used.

  The image display unit 101 is a component for displaying an image reproduced from a received television broadcast radio wave, and is composed of an organic EL display. As described above, the organic EL display can obtain high luminance with low power, has excellent characteristics in terms of visibility, response speed, life, etc., is very thin, and can be easily bent.

  Then, both ends of the image display unit 101 are connected to the main body 105a and the main body 105b, respectively. The connection point between the main body part 105a and the main body part 105b is in the middle from the end of the main body part 105a (the end opposite to the hinge part 102) to the hinge part 102, and a specific example is shown in FIG. Part 109.

  Further, the length between both ends of the image display unit 101 (the connection point between the main body part 105a and the connection point between the main body part 105b) is set to the hinge part 102 from the joint part 109a with the image display part 101 in the main body part 105a. Is set to be shorter than the length from the main body 105b to the joint 109b with the image display unit 101.

  As a result, when the main body 105a and the main body 105b are opened at an angle of 90 degrees or more and smaller than 180 degrees with the hinge 102 as the center, the image display section 101 can be flat. FIG. 1 is a perspective view showing the appearance of this state, and FIG. 2 shows a plan view of this state as viewed from above. This state is also a state when the portable television 100 is used.

  FIG. 3 shows a plan view of the portable television 100 as viewed from above in a folded state, that is, when not in use. From FIG. 3, it can be seen that the image display unit 101 composed of an organic EL display is folded in two.

  As described above, the main body portion 105a and the main body portion 105b constituting the portable television 100 can be rotated around the hinge portion 102 to be opened and closed. The most closed state corresponds to FIG. 3, which also corresponds to a folded state when the portable television 100 is not used.

  The main body 105a and the main body 105b are opened little by little while rotating around the hinge 102, and the state where the main body 105a and the main body 105b cannot be opened any more corresponds to FIGS. This is also the state when the portable television 100 is used.

  As can be seen from FIGS. 1 and 2, when the portable television 100 is used, a space is formed between the main body portion 105 a and the main body portion 105 b and the image display portion 101. And although it has many built-in components such as microcomputers and LSIs, and it has been devised to reduce power consumption to the maximum extent, the main body must inevitably generate large amounts of heat. The unit 105 and the image display unit 101 composed of an organic EL display having a number of excellent characteristics and weakness to heat have a certain distance across this space, and are in a separated state. You can see that it is installed.

  From this, it can be understood immediately that the heat generated in the main body unit 105 is blocked by this space and is not easily transmitted to the image display unit 101. As a result, the image display unit 101 is hardly affected by the heat generated in the main body unit 105, and can be maximized without lacking advantages such as long life, stable operation, and uniform high image quality. Become.

  Furthermore, as can be seen by comparing FIG. 1, FIG. 2, and FIG. 3, the size of the image display unit 101 during use can be ensured to the maximum as compared to the size when folded when not in use. It is possible to enjoy both the convenience of carrying and the large-screen TV image.

  Furthermore, although this portable television 100 is portable as the name suggests, it can of course be used on a desk or the like. At this time, as can be seen from FIG. 1, the main body part 105a and the main body part 105b are opened at an angle of 90 degrees or more and smaller than 180 degrees with the hinge part 102 as the center so that the image display part 101 is flat. Sometimes, the bottom area of the portable television 100 becomes relatively large, so that it can be made independent without requiring any support. As described above, the portable television 100 can be independently installed on a desk or the like for viewing. For example, five speakers and a bass woofer are connected to the main body 105a, the main body 105b, the hinge 102, and the image display unit. It is a particularly effective way to enjoy the excellent sound quality when it is installed in 101 and the like and 5.1ch sound is realized.

  Although not necessarily shown in FIG. 1, for example, a transparent touch sensor switch is installed on the surface of the image display unit 101, and some operation or information is input in conjunction with the display of the image display unit 101. It is also possible to provide an interface that can By adopting such a man-machine interface, it is possible to make the portable television 100 easier to use and at the same time have more various functions.

  Alternatively, when the main body part 105a and the main body part 105b are opened at an angle of 90 degrees or more and smaller than 180 degrees with the hinge part 102 as the center so that the image display part 101 is flat, this is not a normal use. As described above, the main body part 105a and the main body part 105b cannot be opened with the hinge part 102 as the center. However, if the force is applied to the main body part 105a and the main body part 105b and the hinge part 102 is opened with the force as the center, For example, the image display unit 101 may be broken, or the main body unit 105 and the image display unit 101 may be broken at the joint 109. Therefore, in order to prevent such breakage and breakage from occurring, this is not necessarily clearly shown, but the main body 105 and the image display unit 101 are connected and held at the joint 109 with a predetermined frictional force. When the force exceeding the frictional force is applied, the main body 105 and the image display unit 101 can be separated from each other at the joint 109 without being destroyed.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

  FIG. 4 is a perspective view showing an appearance of a mobile phone device 400 which is the second embodiment of the portable image display device according to the present invention.

  The cellular phone device 400 also includes a main body unit 405 and an image display unit 401 as main components. The main body 405 is divided into two parts (a main body 405a and a main body 405b) in detail, and the main body 405a and the main body 405b are rotatably connected by a hinge 402. With regard to these balances, the cellular phone device 400 according to the second embodiment of the present invention is the same as the portable television 100 according to the first embodiment of the present invention.

  The main body 405 incorporates an electronic circuit for performing a call, Internet access, a game, and other various functions in the mobile phone device 400. The same applies to this, which requires a relatively large amount of power consumption, and thus heat generation must be large.

  In addition, the main body 405 includes components necessary for configuring the cellular phone device 400, such as a speaker 425, various operation button switches 422 to 424, a microphone 421, an antenna (not shown), and the like. ing.

  As illustrated in FIG. 4, the operation button switches 422 to 424 include a power on / off switch 422 for turning on / off the power, a number input switch 423 for dialing a telephone number, a volume increase / decrease switch 424 for increasing / decreasing the volume, It consists of other switches. Regarding these various switches, the functions viewed from the application side are different between the portable television 100 and the cellular phone device 400, but the technical and physical configurations are the same.

  Although not shown, the cellular phone device 400 may include a camera unit for taking still images and moving images, an expansion memory card adapter such as an SD memory card, and the like. Moreover, you may have receiving functions, such as analog terrestrial television broadcasting, digital terrestrial television broadcasting (1-Seg, 12-Seg), digital satellite television broadcasting, various radio broadcasting.

  The image display unit 401 displays various types of image information. Regarding the telephone function, the “call acceptability” and “the other party during the call” display, the telephone number list, and the Internet are displayed. When the camera unit is provided, images taken by the camera unit can be displayed. When various television broadcast receiving functions are provided, the received television broadcast can be displayed.

  The image display unit 401 is also composed of an organic EL display. As described above, the organic EL display can obtain high luminance with low power, and has excellent characteristics such as visibility, response speed, and life. It is very thin and easy to bend. Both ends of the image display unit 401 are connected to the main body 405a and the main body 405b, respectively.

  When the main body 405a and the main body 405b are opened at an angle of 90 degrees or more and smaller than 180 degrees with the hinge section 402 as the center, the image display section 401 can be flat. FIG. 4 is a perspective view showing the appearance of this state, and a plan view of this state viewed from above is the same as FIG. This state is also a state when the cellular phone device 400 is used.

  A plan view of the cellular phone device 400 viewed from above in a folded state, that is, when not in use is the same as FIG. FIG. 3 also shows a state in which the image display unit 401 configured with an organic EL display is folded in two.

  As can be seen from FIGS. 4 and 2, even when the cellular phone device 400 is used, a space is formed between the main body 405 a and the main body 405 b and the image display unit 401. And it has a lot of built-in parts such as microcomputers and LSI, and for that reason, the main body 405 has to generate a large amount of heat, and it has many excellent characteristics, but it has the property of being vulnerable to heat. It can be seen that the image display unit 401 configured by the organic EL display having the display unit is installed at a certain distance from the space.

  From this, it can be understood immediately that the heat generated in the main body 405 is blocked in this space and is not easily transmitted to the image display unit 401. As a result, the image display unit 401 is hardly affected by the heat generated in the main body unit 405, and can be maximized without lacking advantages such as long life, stable operation, and uniform high image quality. Become.

  Furthermore, in the mobile phone device 400, when operating with the main body 405, there is a space (gap) between the main body 405 and the image display unit 401. For example, by inserting a finger into this gap, It is very easy to hold, and it has the excellent effect that it is difficult to move sideways when the dial button is pushed and the operation is stabilized.

  According to the present invention, an organic EL display having excellent characteristics is used in an electronic device such as a high-performance and small-sized personal information device, while avoiding the influence of heat generation to the maximum, high image quality, Stable operation performance, excellent visibility, high response speed, long life and low power consumption can be realized, and its industrial applicability is extremely large.

1 is an external perspective view of a portable television according to a first embodiment of the present invention. The top view at the time of use of the portable television which is the 1st Embodiment of this invention The top view at the time of non-use of the portable television which is the 1st Embodiment of this invention External perspective view of a mobile phone device according to a second embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Portable television 101,401 Image display part 102,402 Hinge part (rotation connection part)
103, 425 Speaker 104 Operation button switch 105, 105a, 105b, 405, 405a, 405b Main unit 109, 109a, 109b Joint 400 Mobile phone device 421 Microphone 422 Power on / off switch 423 Number input switch 424 Volume increase / decrease switch

Claims (6)

A first main body portion and a second main body portion connected by a rotation connecting portion;
An image display unit that is bonded to a bonding part that is a part of the first main body part and a bonding part that is a part of the second main body part;
Have
At the time of use, the first main body portion and the second main body portion are in a state of being opened at a predetermined angle in the rotary connecting portion,
The image display portion from the joint portion of the first main body portion to the joint portion of the second main body portion becomes one plane,
The image display unit, the first main body unit, and the second main body unit are in a state where parts other than the joint portion are separated from each other,
When not in use, the first main body portion and the second main body portion are folded in the rotation connecting portion,
The image display unit is sandwiched and folded between the first main body and the second main body,
Portable image display device. The predetermined angle is an angle of 90 degrees or more and less than 180 degrees,
The portable image display device according to claim 1. A display image processing unit between a joint between the first main body unit and the image display unit connected by the rotary connection unit and a joint between the second main body unit and the image display unit. Have
Either the input unit or the audio output unit on the outer side of the first main body unit with respect to the image display unit and the outer side of the second main unit unit with the image display unit, or Have both,
The portable image display device according to claim 1. The image display unit is composed of an electroluminescence display element.
The portable image display device according to any one of claims 1 to 3. The joining of the image display part in the joining part which is a part of the first body part and the part of the second body part is released when a predetermined force or more is applied.
The portable image display device according to any one of claims 1 to 4. The portable image display device according to any one of claims 1 to 5 is provided as the image display unit or a part of the image display unit and the main body unit or a part of the main body unit.
Mobile phone device.

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