JP2005065030A - Electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus that can be made small and inexpensive. <P>SOLUTION: This electronic apparatus has a first display element 21, a second display element 22 thinner than the first display element, information inputting means 101 arranged at areas adjacent to at least one display element between the first and second display elements to input particular information, and substrates 102 which are arranged at areas other than the area with the first display element arranged and where the second display element 2 and the information inputting means are mounted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic apparatus having a display element that displays predetermined information and the like.

  Many imaging devices that perform imaging using an imaging element include a display unit that displays various setting information of the imaging device and a display unit that displays an image obtained by imaging. Usually, these display units are arranged on the upper surface or the rear surface of the main body of the image pickup apparatus for convenience of the image pickup apparatus and restrictions on the structure of the image pickup apparatus. In addition, an operation switch for changing information displayed on the display unit is provided in the vicinity of these display units (see, for example, Patent Document 1).

On the other hand, a display unit for displaying various setting information and a display unit for displaying an image obtained by imaging are provided on the back of the imaging apparatus main body, and an operation switch for changing information displayed on the display unit is provided in the vicinity thereof. In the imaging apparatus, each of these electrical components is mounted on each of a plurality of flexible printed circuit boards (FPCs), and these FPCs are electrically connected at a plurality of locations on the control main board of the imaging apparatus. Many have a structure.
JP 2003-87608 (paragraph numbers 0026, 0027, 0032, FIG. 1)

  However, in the mounting structure as described above, it is necessary to provide a large number of electrical connection portions with a plurality of FPCs on the main board, and due to an increase in the area of the main board due to an increase in connection terminal electrodes and an increase in connection members This hinders downsizing of the imaging device. In addition, an increase in the area of the main substrate and an increase in the number of connection points between the main substrate and the plurality of FPCs may increase the cost of the imaging apparatus.

  The present invention has been made in view of such problems, and an object of the present invention is to provide an electronic device that can be reduced in size and cost and is excellent in operability. It is another object of the present invention to provide an electronic device with high substrate mounting efficiency.

  The electronic device according to the present invention includes a first display element, a second display element that is thinner than the first display element, and at least one of the first display element and the second display element. An information input means for inputting specific information, arranged in an adjacent area, and a substrate mounted in an area other than the arrangement area of the first display element and mounted with the second display element and the information input means; It is characterized by having.

  According to the present invention, since the information input means is arranged in the area adjacent to at least one of the first display element and the second display element, the display element and the information input means are placed in a specific area. The electronic devices can be arranged together, and the electronic device can be downsized as compared with the case where the display element and the information input means are arranged in separate areas.

  Here, if the first display element and the second display element are arranged in areas adjacent to each other, the first and second display elements and the information input means can be arranged in one area, Further downsizing of electronic equipment can be achieved.

  In addition, if the first display element or the second display element is configured to display the information input by the information input means, the information input means can input information while viewing the information displayed on the display element. The operability of the electronic device can be improved.

  In addition, when the second display element and the information input means are mounted on one substrate so that the substrate is connected to another substrate (for example, a main substrate for control), the second display element And the connection location in another board | substrate can be decreased compared with the case where the some board | substrate which mounts each information input means is provided (conventional example). Accordingly, it is possible to prevent an increase in size of the electronic device due to an increase in the area of another substrate, and it is possible to suppress an increase in cost due to an increase in the number of connection points.

  Then, the thickness of the second display element is obtained by arranging the substrate on which the second display element and the information input means are mounted in an area other than the arrangement area of the first display element that is thicker than the second display element. Further, the sum of the thicknesses of the substrates can be suppressed within the thickness of the first display element. Thereby, the display surfaces of the first display element and the second display element can be in the same plane, and the appearance of the electronic device can be made attractive.

  If the substrate is a hard substrate, when the information input means is, for example, a push-type switch, there is no need to provide a support member that supports the substrate in order to prevent the substrate from being deformed by the pressing force of the switch. The size and cost of the device can be reduced.

  If the electric element is mounted on the surface of the substrate opposite to the surface on which the second display element and the information input means are mounted, the above electric element is mounted on another substrate. Since the mounting efficiency for one substrate can be increased and the number of substrates can be reduced, the electronic device can be reduced in size and cost.

  Here, if the first display element is disposed along one exterior surface of the apparatus main body and the second display element is disposed along the other exterior surface facing the one exterior surface, the second display element is obtained. Other electric elements can be mounted on the substrate surface facing the mounting area of the display element.

  Examples of the present invention will be described below.

  A camera system that is Embodiment 1 of the present invention will be described. 1 and 2 are sectional views showing the internal structure of the camera system of this embodiment.

  The camera system according to the present embodiment includes a camera body (electronic device) 1 and a lens device 9 that is detachably attached to the camera body 1. By attaching the lens device 9 to the camera body 1, data communication can be performed between the lens device 9 and the camera body 1.

  In the lens device 9, a photographing optical system composed of a plurality of lens groups and an aperture unit 13 for adjusting the amount of subject light incident on the image plane by changing the aperture area of the light passage opening are arranged. ing. Here, zooming and focusing of the photographing optical system is performed by moving at least a part of the plurality of lens groups in the optical axis direction.

  The main mirror 8 provided in the camera body 1 is obliquely installed on the photographing optical path by a driving mechanism (not shown) (FIG. 1) or retracted from the photographing optical path (FIG. 2).

  Here, in the case where the main mirror 8 is obliquely arranged on the photographing optical path (FIG. 1), a part of the subject luminous flux that has passed through the lens group in the lens device 9 is reflected by the main mirror 8 to be focused. The light is guided to a finder optical system 11 including a plate, a pentaprism, an eyepiece lens 23 and the like. Thus, the photographer can observe the subject image by looking into the eyepiece lens 23.

  Further, the remaining luminous flux among the subject luminous fluxes is disposed at the lower part of the camera body 1 by being transmitted through the main mirror 8 formed of a half mirror and reflected by the sub mirror 7 provided on the back surface of the main mirror 8. Guided to the focus detection unit 10. The focus detection unit 10 receives the subject light beam guided from the sub-mirror 7 and detects the focus adjustment state of the photographing optical system by a known phase difference detection method. Based on the detection result, the focus adjustment operation of the photographing optical system is performed.

  On the other hand, when the main mirror 8 is retracted from the photographing optical path (FIG. 2), the subject luminous flux transmitted through the lens group in the lens device 9 is directed toward the image plane side.

  The shutter unit 4 includes a shutter base plate in which an aperture (opening) is formed, and a front curtain 5 and a rear curtain 6 that are configured by a plurality of light shielding members. The front curtain 5 and the rear curtain 6 limit the subject light incident on the image plane by opening and closing the aperture.

  When the camera system is in a non-photographing state (FIG. 1), the front curtain 5 is unfolded to close the aperture, and the rear curtain 6 is superimposed. Further, when the non-photographing state shifts to the photographing state (FIG. 2), the front curtain 5 in the unfolded state starts to be superimposed and the rear curtain 6 in the superposed state begins to unfold.

  An optical filter 3 in which an optical low-pass filter and an infrared cut filter are integrated is disposed behind the shutter unit 4 (image surface side). An imaging element 2 such as a CCD or a CMOS image sensor is disposed behind the optical filter 3.

  The subject luminous flux that has passed through the aperture due to the traveling of the front curtain 5 and the rear curtain 6 of the shutter unit 4 passes through the optical filter 3 and is received by the imaging device 2. The image sensor 2 converts the received light (optical image) into an electrical signal (image data). A charge readout circuit (not shown) scans and reads out the electrical signal converted by the image sensor 2 for each horizontal line of the image sensor 2.

  Then, after a predetermined time (exposure time) has elapsed, the front curtain 5 is superimposed and the rear curtain 6 is unfolded to cover the aperture of the shutter unit 4. After shooting, the front curtain 5 and the rear curtain 6 return to the state before the start of shooting.

  3 and 4 are a front view and a rear view of the camera system in the present embodiment.

  On the front side of the camera body 1, as shown in FIG. 3, a release button 31 that is operated to start a shooting preparation operation (focus adjustment operation, photometry operation, etc.) and a shooting operation (imaging by the image sensor 2). Is provided. As shown in FIG. 4, a TFT (Thin Film Transistor) display element (first display element) 21 and an LCD (Liquid Crystal Display) display element (second display element) 22 are provided on the rear surface of the camera body 1. They are arranged side by side in the vertical direction of the camera body 1.

  The TFT display element 21 displays a photographed image picked up by the image pickup element 2, and the photographer can confirm the photographed image from outside the camera system. The LCD display element 22 displays various information set by the camera system (for example, shooting information such as an aperture value and a shutter speed), and the photographer can visually recognize the information set by the camera system. it can.

  An exterior panel 23 that is a translucent member constituting the display window of the TFT display element 21 and the LCD display element 22 is fixed to the back surface of the camera body 1 by adhesion or welding, and constitutes the exterior of the camera body 1. . On the surface of the exterior panel 23, a light-shielding paint film is injection-molded by, for example, in-mold molding.

  A plurality of button switches 24 are arranged in the vicinity of the TFT display element 21 and the LCD display element 22 in the left-right direction of the camera body 1 (left-right direction in FIG. 4) with respect to these display elements 21, 22. Yes.

  These button switches 24 change the content of the captured image displayed on the TFT display element 21 (for example, enlargement of the displayed captured image or switching of the captured image) and setting information displayed on the LCD display element 22. It is a switch that is operated to change it.

  When shooting, the photographer checks the setting information displayed on the LCD display element 22 and then looks into the eyepiece 23 to determine the composition of the subject. And it can image | photograph by operating the release button 31 provided in the front side of the camera main body 1. FIG. After the photographing is finished, the photographed image is displayed on the TFT display element 21, and the photographed image can be confirmed.

  FIG. 5 is a block diagram showing a circuit configuration in the camera system of the present embodiment.

  In the figure, a control circuit 309 connected to a CPU 313 controls driving of the lens group and the aperture unit 13 via a lens drive unit 308 and an aperture drive unit 307 disposed in the lens device 9. The control circuit 309 controls driving of the shutter unit 4 that controls exposure to the image sensor 2.

  Here, information necessary for driving the aperture unit 13 and the shutter unit 4 (aperture value, shutter speed, etc.) is calculated by the CPU 313 based on the output of the photometry unit 311 for detecting the subject luminance, and is sent to the control circuit 309. Sent. Information necessary for driving the lens group (focus adjustment information and the like) is calculated by the CPU 313 based on the output of the focus detection unit 10 and sent to the control circuit 309.

  Image data read from the image sensor 2 is sent to the A / D converter 303 via the analog signal processing circuit 302. The A / D converter 303 converts image data obtained as an analog signal by the image sensor 2 into a digital signal. The converted image data is sent to the memory 305 via the main signal processing circuit 304. Here, the image data stored in the memory 305 is compressed by the compression / decompression circuit 314 by an arbitrary compression method such as the JPG method, and then recorded on the memory card 315 that is detachably attached to the camera body 1. .

  Further, the image data stored in the memory 305 is converted into an analog signal again by the D / A converter 306, and then sent to the TFT display element 21 to be displayed as a photographed image. The image data recorded on the memory card 135 is read via the compression / decompression circuit 314 and the D / A converter 306 and displayed on the TFT display element 21. Thereby, it is possible to check the image data recorded in the memory card 135 and photographed in the past.

  The LCD display element 22 displays various information set in the camera system under the control of the CPU 313. Switch signals of the button switch 317 including the release button 31 and the button switch 24 are input to the CPU 313, and the CPU 313 performs an operation according to the input switch signal.

  FIG. 6 is a diagram showing an internal structure on the back side of the camera body 1. Here, FIGS. 6A and 6B are a front view and a side view of the internal structure.

  On the back surface of the camera body 1, a printed wiring board 102, which is a hard board on which various electrical components are mounted, is disposed.

  The printed wiring board 102 is formed in a substantially U-shape so as to avoid the arrangement area of the TFT display element 21, and an LCD display element is provided in an area extending in the horizontal direction (left and right direction in FIG. 6) of the camera body 1. 22 is implemented. A plurality of tact switches (information input means) 101 are arranged in regions of the printed wiring board 102 located on the left and right sides of the TFT display element 21 and the LCD display element 22. These tact switches 101 are provided corresponding to a plurality of button switches 24 provided on the back surface of the camera body 1.

  The leaf spring 103 has a substantially U-shaped cross section in the longitudinal orthogonal direction, and the LCD display element 22 is sandwiched between two side surfaces facing each other via an anisotropic conductive rubber (not shown). Thereby, the LCD display element 22 is fixed to the printed wiring board 102. Here, the LCD display element 22 is held by the LCD display element holding frame 104 together with the anisotropic conductive rubber.

  The tact switch 101 is electrically connected to the printed wiring board 102 by soldering or the like, and transmits a signal corresponding to the operation of the button switch 24 to the wiring on the printed wiring board 102.

  The TFT display element 21 is connected to a printed wiring board (not shown) (a board different from the printed wiring board 102) disposed inside the camera body 1 via a flexible printed board (FPC) (not shown). A CPU 313 for driving the TFT display element 21 is mounted on the printed wiring board.

  A straight terminal electrode portion (not shown) is provided on one side edge of the back surface (the surface opposite to the surface shown in FIG. 6) of the printed wiring board 102, and a terminal provided on an FPC (not shown). Connected to the electrode part. The FPC is electrically connected to a printed wiring board on which a CPU 313 for driving the LCD display element 22 is mounted via a terminal electrode portion.

  According to the present embodiment, as shown in FIGS. 4 and 6, a plurality of button switches 24 (tact switches 101) are arranged in the vicinity of the TFT display element 21 and the LCD display element 22. The display elements 21 and 22 and the button switch 24 on the back surface can be collectively arranged in a predetermined area, and the camera body 1 can be downsized.

  Further, since the LCD display element 22 and the tact switch 101 are mounted on one printed wiring board 102 and this printed wiring board 102 is connected to the printed wiring board on which the CPU 313 is mounted, the LCD display element 22 and the tact switch 101 are connected. The number of connection electrodes on the printed wiring board on which the CPU 313 is mounted can be reduced as compared with the case where a plurality of printed wiring boards on which the CPU 313 is mounted are connected to the printed wiring board on which the CPU 313 is mounted. Thereby, the area of the printed wiring board on which the CPU 313 is mounted can be reduced, and the camera body 1 can be reduced in size and cost.

  Moreover, since the information input by operating the button switch 24 is displayed on the LCD display element 22, the display content of the LCD display element 22 can be confirmed while operating the button switch 24, and the operability of the camera system can be improved. Can be improved.

  Since the printed wiring board 102 is formed in a shape (notched shape) that avoids the arrangement area of the TFT display element 21 having a thickness larger than that of the LCD display element 22, as shown in FIG. The thickness including the LCD display element 22 and the printed wiring board 102 can be suppressed within the thickness of the TFT display element 21. As a result, the display surfaces of the LCD display element 22 and the TFT display element 21 can be arranged in the same plane, and the back surface (exterior surface) of the camera body 1 can be flattened, so that the appearance of the camera body 1 is good. Can be.

  Further, since the printed wiring board 102 disposed on the back surface of the camera body 1 is a hard board and the tact switch 101 is provided on the printed wiring board 102, when the button switch 24 is pressed, the printed wiring board 102 is provided. It is not necessary to separately provide a support member for preventing the deformation of the camera body 1 in the camera body 1, and the camera body 1 can be reduced in size and cost.

  By mounting the LCD display element 22 and the tact switch 101 on one surface of the printed wiring board 102, components that require a large mounting area can be mounted on the other surface. An inexpensive structure can be obtained.

  In this embodiment, the camera system has been described. However, the present invention can also be applied to a digital still camera, a video camera, or the like in which a lens apparatus and a camera body are integrally configured.

  A portable electronic device (for example, a mobile phone) that is Embodiment 2 of the present invention will be described. FIG. 7 shows a front view (A) and a rear view (B) of the portable electronic device according to the present embodiment.

  As shown in FIG. 7A, the first TFT display element 402 is disposed on the front surface of the device main body 401, and an image captured by the image sensor 405 attached to the back surface of the device main body 401 is displayed. To do. A plurality of button switches (information input means) 404 are arranged on the front surface of the device main body 401 and in an area adjacent to the first TFT display element 402. These button switches 404 are formed of the first TFT. The switch is operated to select an image displayed on the display element 402 or to select and set a menu item.

  A second TFT display element 403 is arranged in a region outside the region facing the first display element 402 on the back surface of the device main body 401. Similar to the first TFT display element 402, an image captured by the image sensor 405 is displayed on the second TFT display element 403.

  Here, the photographer can confirm the photographer himself / herself as a subject by observing the image displayed on the second TFT display element 403 and perform photographing.

  On the front surface of the device main body 401, a speaker 406 that emits a button operation sound, a ringtone, a voice of a call destination, and the like, and a microphone 407 for inputting sound are disposed. Further, on the front surface of the device main body 401, a switch 408 that is operated to input various kinds of information (call destination telephone number and various function settings provided in the portable electronic device) is arranged.

  In this embodiment, the substrate 409 electrically connected to the button switch 404 is formed in a shape that avoids the arrangement region of the first TFT display element 402 as indicated by a dotted line in FIG. Accordingly, the first TFT display element 402 can be disposed close to the inside of the portable electronic device, and the portable electronic device can be thinned.

  A second TFT display element 403 is electrically connected to the back surface of the substrate 409 (the surface opposite to the surface on which the button switch 404 is mounted).

  The substrate 409 is provided in the portable electronic device and is electrically connected to a substrate (not shown) on which a control CPU is mounted. In addition, the first TFT display element 402 is connected to a substrate on which the CPU is mounted via an FPC. With such a configuration, as in the first embodiment, the number of connection electrodes on the substrate on which the CPU is mounted can be reduced, and the portable electronic device can be reduced in size and cost.

  According to the present embodiment, a plurality of button switches 404 for inputting various kinds of information to the portable electronic device are collectively arranged in the peripheral region of the first TFT display element 402, so that the portable electronic device Miniaturization can be achieved.

  In addition, since a large mounting area can be secured on the surface of the substrate 409 opposite to the surface on which the TFT display element 403 is mounted, mounting an electrical element such as the speaker 406 on this surface allows the substrate to be mounted. The mounting efficiency of 409 can be increased.

  Here, an LCD display element can be used instead of the second TFT display element.

It is a center sectional view (non-photographing state) in the camera system of Example 1. FIG. 3 is a central cross-sectional view (shooting state) in the camera system of Embodiment 1. 1 is a front view of a camera system of Example 1. FIG. FIG. 3 is a rear view of the camera system according to the first embodiment. 1 is a block diagram illustrating a circuit configuration of a camera system according to Embodiment 1. FIG. FIG. 3 is a front view illustrating an internal structure on the back surface of the camera body according to the first embodiment. FIG. 3 is a side view showing an internal structure on the back surface of the camera body according to the first embodiment. 6 is a front view of a portable electronic device of Example 2. FIG. 6 is a rear view of a portable electronic device of Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Camera body 2 Image pick-up element 3 Optical filter 4 Shutter unit 5 Front curtain 6 Rear curtain 7 Submirror 8 Main mirror 9 Lens apparatus 10 Focus detection unit 11 Viewfinder optical system 13 Aperture unit 21 TFT display element 22 LCD display element 23 Exterior panel 24 Button Switch 31 Release button 101 Tact switch 102 Printed wiring board 103 Leaf spring 104 Holding frame 401 Device main body 402 First TFT display element 403 Second TFT display element 404 Button switch 405 Image sensor 406 Speaker 407 Microphone 408 Switch 409 Substrate

Claims (6)

A first display element;
A second display element that is thinner than the thickness of the first display element;
An information input means for inputting specific information disposed in a region adjacent to at least one of the first display element and the second display element;
An electronic apparatus comprising: a substrate on which the second display element and the information input unit are mounted, which is disposed in a region other than the region in which the first display element is disposed. The electronic device according to claim 1, wherein the first display element and the second display element are arranged in regions adjacent to each other. 3. The electronic apparatus according to claim 1, wherein the sum of the thickness of the second display element and the thickness of the substrate is equal to or less than the thickness of the first display element. The electronic device according to claim 1, wherein the substrate is a hard substrate. 4. The electronic apparatus according to claim 1, wherein the first display element and the second display element are arranged such that their display surfaces are located in the same plane. 5. . The first display element is disposed along one exterior surface of the apparatus body, and the second display element is disposed along the other exterior surface facing the one exterior surface. The electronic device according to claim 1, wherein the electronic device is characterized in that:

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