Abstract: A method for determining a correction value used for correction of energy of light emitted from each of a plurality of light-emitting elements for exposing a surface to be exposed, the light-emitting elements being arranged in a first direction, is provided. The method includes identifying, from among a plurality of spot regions formed on the surface in response to the light being emitted from the plurality of light-emitting elements, an elongated spot region whose major axis extends in a direction inclined with respect to the first direction and determining a correction value such that a dimension of the identified spot region in a direction of the major axis is made to be equal or close to a target value.

Abstract: In a method of providing video-call service using a general voice-call terminal and a Private Branch Exchange (PBX) for performing the method, the following steps or functions are performed: exchanging, at a PBX, video media information with a video-support adaptor for providing video-call service to a voice-call terminal; and exchanging, at the PBX, moving picture media information to be used by the voice-call terminal and the video-support adaptor with a counterpart video-call terminal so as to establish a session between the video-support adaptor and the counterpart video-call terminal. The PBX includes a call processor and a Session Initiation Protocol (SIP) agent. It is possible to provide video-call service between a conventional terminal not having a video screen and various videophone apparatuses by interworking the conventional terminal with SIP-based video software or hardware.

Abstract: An image acquisition system for capturing images of a scene is provided. The system includes a stationary image acquisition device that receives optical images. A light-directing device directs images toward the image acquisition device. The light-directing device pivots about a pivot axis over a scan range that is less than 360 degrees.

Abstract: A system for generating an on-screen display (OSD) is described. The on-screen display, which has a semitransparent background area, is overlaid on top of an image. The data which make up this image are stored in a buffer. An accumulator, connected to the buffer, is used to examine this data, and store information about it. An attached OSD module used the stored information to automatically adjust the semitransparent background of the OSD.

Abstract: Provided is an image surveillance method and apparatus. The image surveillance method includes photographing a predetermined place and generating an image signal corresponding to the predetermined place, detecting a change in the image signal by calculating a difference between a current frame and a previous frame of the generated image signal, and generating alarm information corresponding to the detected change in the image signal in order to alarm a user.

Abstract: An unattended sensor is provided for use in a surveillance system. The sensor is generally comprised of: a detector; a signal processor; a radio transceiver; a power source; and a controller which configures the sensor in either a sensor mode or a relay mode. When configured in the sensor mode, the detector and signal processor are operational and the transceiver is non-operational. When configured in the relay mode, the transceiver is operational but the detector and signal processor are non-operational. In an alternative approach, the detector and the signal process may remain operational in the relay mode.

Abstract: An unattended sensor is provided for use in a surveillance system. The sensor is generally comprised of: a detector that generates an electrical signal in response to a physical stimulus proximate to the sensor; a signal processor adapted to receive the electrical signal from the detector and operable to generate an event message based on the electrical signal; a transceiver operable to send and receive messages over a wireless radio link; and a channel access mechanism operable to negotiate access to the radio link in accordance with an access protocol, where the access protocol is employed by radios and other communication devices in the system.

Abstract: An image display device capable of preventing screen burning or residual image phenomena is provided. The image display device includes a display which displays an image according to preset pixel output characteristics; a motion detection unit which detects motion of the displayed image; and an output controller which adjusts the pixel output characteristics of pixels corresponding to a still image if at least one portion of the image is determined to be a still image, based on the detection result of the motion detection unit. Therefore, screen burning or residual image phenomena can be effectively reduced.

Abstract: Method, system, and program product for measuring audio video synchronization. This is done by first acquiring audio video information into an audio video synchronization system. The step of data acquisition is followed by analyzing the audio information, and analyzing the video information. Next, the audio information is analyzed to locate the presence of sounds therein related to a speaker's personal voice characteristics. The audio information is then filtered by removing data related to a speakers personal voice characteristics to produce a filtered audio information. In this phase filtered audio information and video information is analyzed, decision boundaries for Audio and Video MuEv-s are determined, and related Audio and Video MuEv-s are correlated. In Analysis Phase Audio and Video MuEv-s are calculated from the audio and video information, and the audio and video information is classified into vowel sounds including AA, EE, OO, silence, and unclassified phonemes.

Abstract: An imaging system, such as having pixel-sized photosensors for recording images, or light emitters or ink-jet ejectors for creating images, comprises a plurality of chips. Each chip includes a shift register with a shift-register-in line; a set of imaging elements associated with the shift register; and a program line, for accepting a program enable signal enabling acceptance of control data relating to a desired operating parameter of the chip. A control system is operable in a first mode wherein each chip in the plurality of chips receives the program enable signal directly through the program line, and a second mode wherein each chip receives the program enable signal through the shift-register-in line.

Abstract: Movement of an imaging device is detected using a camera shake detection sensor or a motion vector obtained from an image signal, and camera shake correction is performed by shifting an extraction frame (valid photographing region) within a photographable maximum region based on the motion detection result. When movement of the imaging device is causing a face region located at the edge of the extraction frame to move towards out of the frame, it is determined that the movement is due to camera shake, and the extraction frame is moved so that the face region can stay within the frame. Meanwhile, when movement of the imaging device is causing the face region to move inward within the frame, it is determined that the movement is due to a pan or tilt operation, and position control is performed so that the deliberate movement is not inhibited.

Abstract: An electromagnetic driving apparatus includes a magnet member having a first face in which first and second magnetic poles are formed in a first direction and a second face in which the first and second magnetic poles are formed in a second direction, a first coil facing the first face, a second coil facing the second face, a first member holding the magnet member, and a second member holding the first and second coils. One of the first and second members holds a driven member. The first and second members are relatively moved in the first direction by the energization of the first coil, and the first and second members are relatively moved in the second direction by the energization of the second coil. The actuator constituted by the first and second coils and the magnet member can be compactly arranged in one region in the apparatus.

Abstract: When a shot reproduction command of a preset function is given from a platform controller 12 and a zoom position of a shot to be reproduced is closer to the wide side than a current position, CPU 42 of a platform main body 16 performs driving of the zoom prior to driving of the pan/tilt. On the contrary, when the zoom position of the shot to be reproduced is closer to the telephoto side than the current position, CPU 42 performs the driving of the pan/tilt prior to the driving of the zoom.

Abstract: An image device and a still image capturing method thereof. The image device includes a first storage unit which stores a broadcast stream by a certain length; a capturer which, when a capture function is selected to output at least one of frames constituting the broadcast stream as a still image, captures a certain number of frames starting from a frame at a certain time ahead of the capture function selection among the frames stored to the first storage; and a second storage unit which stores the frames captured at the capturer. Accordingly, the user's convenience can be promoted by capturing the user's intended still image.

Abstract: An image processing apparatus, a computer readable medium and the like in which a dither effect in a neighborhood of a highlight area can be obtained easily and certainly. For this purpose, an image processing apparatus includes an inputting unit which inputs a pixel signal group representing a field image, an averaging unit (21-2 and 21-3) which performs a processing having an averaging effect among the pixel signal group input by the inputting unit, and an irregularizing unit (21-4) which irregularizes mutually continuous signal-values at least near a saturated level among the pixel signal group after having been processed by the averaging unit, into discontinuous signal-values.

Abstract: Infrared light emitted by a fluorescent material is weak. When an infrared image obtained by this fluorescent material is superposed and displayed on a visible-light image, the infrared image is made clear. A signal <IR> of an IR pixel having selective sensitivity to infrared light is subtracted from RGB pixel signals <R>, <B>, and <G> of a solid-state image sensor by adders (20), and signals R0, G0, and B0 that correspond to the R, G, and B components of incident light within <R>, <G>, and <B> are separated and extracted. <IR> is multiplied by each of the gains ?R, ?G, and ?B to enhance the IR component by multipliers (22), and each is synthesized with R0, G0, and B0 by adders (24). ?R, ?G, and ?B are set so that the infrared image displayed on the visible-light image by the synthesized IR component is enhanced and displayed in a hue that can be distinguished from the color white or another visible-light image.

Abstract: A method of making a digital photograph composed of a moving water element and still element by applying a known computer image processing system, and a digital photograph made by this method, involves taking a basic photograph indicating a realistic image of still elements and photographs taken by applying a series of shutter speeds. A series of digital images corresponding to the above-mentioned photographs are indicated on a monitor of the processing system, and an image indicating a realistic image of the moving water element is selected from the series of digital images. A color matching operation is them applied to the selected digital image whereby a final digital image having a still element substantially color matched to that of the basic photograph and a realistic image of a moving water element is indicated on the monitor, and thereafter a realistic digital photograph is printed based upon the final image.

Abstract: An automatic white balance system according to an embodiment of the invention comprises a color separation and synchronization unit which has a line memory for generating a white-balance-adjusted YUV signal, a color judgment unit which judges whether or not a white balance adjustment is needed, a white balance adjustment gain computation unit which calculates a white balance adjustment gain on the basis of the result of the judgment at the color judgment unit and the white-balance-adjusted YUV signal, a reciprocal computation unit which outputs the reciprocal transformation value of the white balance adjustment gain, and a second multiplier which multiplies the white-balance-adjusted YUV signal by the reciprocal transformation value.

Abstract: An encoding apparatus includes a first encoder for encoding inputted picture information at a first rate or first resolution, and a second encoder for encoding the inputted picture information at a second rate lower than the first rate or at second resolution lower than the first resolution, in which when the second encoder encodes picture information, the second encoder encodes the picture information by use of encoding information of picture information in the first encoder corresponding to the picture information, and the encoding apparatus outputs the picture information encoded by the first encoder and the second encoder, respectively, thereby the second encoder executing the encoding by using encoding information of the first encoder.

Abstract: According to one embodiment the amount of noise in the OB interval of a video signal when an electron-multiplying solid-state imaging device is driven with each of predetermined multiplication gains has been measured and stored in advance. The amount of noise in the OB interval of a video signal when the solid-state imaging device is driven with a drive voltage of a predetermined magnitude is measured. The magnitude of the drive voltage is corrected on the basis of the measured amount of noise and the stored amount of noise corresponding to one of the predetermined multiplication gains.

Abstract: An interchangeable lens which can communicate with an associated camera body when the interchangeable lens is detachably attached to the camera body to exchange data of the interchangeable lens, the interchangeable lens includes a logic IC via which the interchangeable lens communicates with the camera body; and a memory which is provided independent of the logic IC, connected to the logic IC, and stores the data of the interchangeable lens.

Abstract: An interchangeable lens which can communicate with an associated camera body, the interchangeable lens including an interface logic IC; and a memory connected to the interface logic IC, and stores the data of the interchangeable lens. Fixed data of the interchangeable lens is allocated to a predetermined number of bytes of data sent from the interchangeable lens to the camera body so that terminals of the interface logic IC serve as at least one group of fixed data set-pins to which levels corresponding to the fixed data are set. In communication with the camera body for a predetermined number of bytes thereof, the interface logic IC reads the fixed data set by the group of fixed data set pins to send the read fixed data to the camera body, and sends data of the interchangeable lens which is read from the memory to the camera body.

Abstract: An imaging apparatus for capturing an image using a solid-state imaging device. The imaging apparatus includes: a noise-elimination processing section capable of performing noise elimination processing on the captured image data by applying an individual noise-elimination intensity for each pixel; an image coding processing section compression coding the image data having been subjected to the noise-elimination processing; an image analyzing section analyzing the image data having been subjected to the noise-elimination processing and generating area specification information identifying a noticed area in the captured image; and a noise-elimination processing control section controlling the noise-elimination processing section so as to make the noise-elimination intensity for the noticed area in the captured image lower than the noise-elimination intensity for the other area on the basis of the area specification information from the image analyzing section.

Abstract: This invention allows executing proper photometry within a short time even when a single-lens reflex type image capturing apparatus performs flash photography using an electronic viewfinder. When performing photography from a live view display state using a flash unit which illuminates an object, a shutter front curtain is closed, and a quick return mirror is driven into a photographing optical path. After a photometry sensor near an optical viewfinder temporarily measures reflected light from the object, photography is executed.

Abstract: A photographing unit photographs an object “n” times respectively with exposure times T1(1) to T1(n) to generate “n” sheets of images of the same object per an exposure time T1, where “n” is a whole number and the exposure times T1(1) to T1(n) are obtained by dividing the exposure time T1 by the whole number of “n”, a displacement correcting unit (32a, 32b) calculates a correction value for correcting displacement of the images, and a limb-darkening compensating unit (32d) corrects a position of a limb-darkening characteristic component of each of the images, using the correction value. Meanwhile, the limb-darkening characteristic components of the images whose positions have been corrected are combined to generate a limb-darkening characteristic component for compensation. Limb darkening in a combined image is compensated for, using the limb-darkening characteristic component for compensation, whereby a time required for performing a limb-darkening compensating process is decreased.

Abstract: Some embodiments include an output driver having a first circuit to provide a plurality of first parallel circuit paths between an output node and a first supply node, a second circuit to provide a plurality of second parallel circuit paths between the output node and a second supply node, and a control circuit responsive to a voltage at the output node to vary a value of a current in the plurality of first parallel circuit paths and a value of a second current in the plurality of second parallel circuit paths to control a signal shape of the output signal. Additional apparatus, systems, and methods are disclosed.

Abstract: A physical quantity distribution detecting apparatus includes a sensor array in which a plurality of unit sensors for sensing physical quantity are two-dimensionally arranged in a matrix; and an analog-to-digital conversion unit that includes a plurality of comparators for comparing an analog signal read from the unit sensor with a reference signal, the analog-to-digital conversion unit converting a digital signal by measuring a period of time or measuring a signal corresponding to the period of time of each comparison output of the plurality of comparators. Each of the plurality of comparators includes at least one capacitor element connected between a signal line and a constant-voltage line.

Abstract: Provided is a pixel circuit in a CMOS image sensor, a structure thereof, and a method of operating the same. The pixel includes: a photodiode; a floating diffusion node connected to the photodiode through a first switch; a source follower responsive to a voltage of the floating diffusion node. The voltage of the floating diffusion node is applied to the source follower through capacitance coupling.

Abstract: An imaging module includes a flexible printed circuit board which has a first area on which a first functional element is mounted, a second area on which a second functional element is mounted, and a third area which is formed between the first area and the second area, an electronic component which is mounted on the first area, and an imaging device which is mounted on the second area. The flexible printed circuit board is formed by an insulating layer which is integrated, spreading over the first area, the second area, and the third area. The flexible printed circuit board is formed such that the flexible printed circuit board can be bent at least in the third area.

Abstract: A digital camera feeds information input on an operation panel to a system controller. The system controller generates a control signal in accordance with optical sensitivity selected and feeds it to a timing signal generator. The timing signal generator includes a signal generator, which generates a timing signal whose frequency matches with the control signal. While a solid-image image sensor is driven by the timing signal, the frequency of a horizontal transfer signal is made lower than the usual frequency in accordance with the sensitivity selected. This prevents the number of electrons from noticeably decreasing during horizontal transfer to thereby enhance transfer efficiency for a single stage of transfer.

Abstract: A zoom lens system includes, in order from an object side, a first lens unit G1 having a positive refracting power, a second lens unit G2 having a negative refracting power, a third lens unit G3 having a positive refracting power, and a fourth lens unit G4 having a positive refracting power, and at the time of zooming from a wide angle end to a telephoto end, a space between the lens units changes, and the second lens unit includes not more than three lenses, and a biconcave negative lens which satisfies the following conditional expression (1) is disposed nearest to the object side, in the second lens unit, and (the zoom lens system) is characterized by satisfying the following conditional expression (2). ?0.1<SF2n1<0.5 ??(1) 3.0<ft/fw<12.

Abstract: In an AF camera having a two-stage capture button or a three-stage capture button, a timing control module or algorithm is used to control the type of image a user can obtain after the user presses and releases the capture button. The timing control allows the user to capture an image of the scene substantially as presented on the viewfinder when the automatic focusing algorithm carries out its focusing function, or to capture an image of a recomposed scene after the focusing function is completed. If the user releases the capture button before the automatic focusing algorithm finishes its focusing function, the image obtained is the image focused at the hyperfocal distance.

Abstract: An autofocus device, comprises: a stage for mounting a sample; an objective lens; a focusing unit driving stage or the objective lens in an optical axis direction in order to control the position relative to each other of the stage and the objective lens; a lighting unit onto the sample; a detection unit detecting an optical image; a projection state changing unit being provided in an optical path, changing a state of the optical image projected onto the detection unit; a first in-focus state determination unit determining an in-focus state of the sample on the basis of a detection result; and a first in-focus state adjustment unit controlling a position of the projection state changing unit such that a state in which the stage and the objective lens are held at prescribed positions under control of the driving unit is determined to be an in-focus state.

Abstract: Methods and apparatuses for generating information regarding spatial relationship between a lens and an image sensor of a digital imaging apparatus are provided. One proposed method includes: providing uniform light; driving the image sensor to sense the uniform light via the lens to generate a corresponding image; and generating the information according to the image. Additionally, an inspecting method can be performed to determine if the digital imaging apparatus is defective in accordance with the image.

Abstract: An aspect of the present invention provides an image taking device comprising an image pickup device which picks up an image in a field, a luminance measuring device which divides the image into the predetermined number of blocks to measure the luminance level of each block, a reference average luminance level calculating device which calculates an average luminance level in a predetermined reference area in the image, a bright block sampling device which compares the average luminance level in the reference area with the luminance level of each block to sample a bright block high in luminance level, a backlight determining device which determines whether the picked up image is backlit based on the average luminance level of the bright blocks and the average luminance level of the reference area, and an exposure controlling device which calculates an exposure value based on the result of the determination as to the backlight to control exposure.

Abstract: According to an aspect of the present invention, at least parts or all of the windows for tarry lamps are located in the outside of the front cover by constructing the front cover portion between the top face and left-hand side face of the front cover, and the front cover portion between the top face and right-hand side face of the front cover as the inclined planes respectively. That is, since the windows for tarry lamps are not covered by the front cover as conventional ones, visibility from the external improves.

Abstract: An image de-interlacing method for estimating an interpolation luminance of an interpolated pixel, including: selecting a plurality of first and second candidate pixels respectively on upper and lower lines adjacent to the interpolated pixel, calculating a plurality of weighted directional differences respectively associated with one of the first candidate pixels and one of the second candidate pixels with weighting values determined by comparing similarity of luminance decreasing/increasing patterns near the associated first and second candidate pixels on the upper and lower lines, selecting a first selected pixel and a second selected pixel respectively from the first and second candidate pixels associated with the smallest weighted directional difference, and obtaining the interpolation luminance according to the first and second selected pixels.

Abstract: An image de-interlacing method for estimating an interpolation luminance of an interpolated pixel improving interpolation quality of oblique lines comprises selecting a plurality of candidate interpolation directions extending from one of a plurality of first candidate interpolation pixels to one of a plurality of second candidate interpolation pixels respectively on top and bottom lines adjacent to the interpolated pixel, classifying the candidate interpolation directions with first candidate interpolation pixels located at the upper left, upper right, and upper middle of the second candidate interpolation pixel respectively into first, second, and third directional groups, and selecting one or all of the directional groups to obtain the interpolation luminance of the interpolated pixel according to whether regions around the interpolated are present in an ambiguous area of an oblique line, and if so, further according to direction type (and color type) of the oblique line.

Abstract: A method and a system for determining a video deinterlacing strategy are disclosed. First, all the pixels of a (i+2)th field are subtracted from the corresponding pixels of the ith field to obtain a difference field. Next, a specific check-area is located according to the difference field. Next, the ith field is combined with the (i+1)th field into a specific frame. Next, the combing phenomenon of the specific check-area in the specific frame is checked to determine the deinterlacing scheme for the pixels in the specific check-area.

Abstract: An image processing apparatus includes: a field forming unit configured to subject 3-2 pulldown materials to 3-2 pulldown to form field images in normal reproduction, and to add flag information to the field images, the flag information necessary to generate frame images from field images; and a generating unit configured to generate frame images from the formed field images based on the flag information, wherein in a special reproduction other than the normal reproduction, according to its reproduction form, the field forming unit forms a predetermined field image from the material, and adds flag information to the formed field images, the flag information that has to be added to a field image possibly formed by subjecting the material corresponding to the field image to 3-2 pulldown, and the generating unit generates a frame image from the field image based on the flag information added to the field image.

Abstract: A semiconductor device that can be used to process and transmit data in two dissimilar formats. DVI or DisplayPort (DPortV1) standardized formats are disclosed. This integration, which can be operated in each mode as fully compliant circuit with the specific standard, allows the same video capture and analog circuits to be configured and used for processing of both formats, thereby reducing the number of circuits required as well as the over all size of the integrated solution. Board space is also reduced by using this integrated chip. The use of the same chip in both applications also takes advantage of the manufacturing economy of scale to reduce the cost of the chip to the customer.

Abstract: There is provided a vertical frequency distinction circuit and a vertical frequency distinction method capable of reducing a chip area, and a video display apparatus having the vertical frequency distinction circuit. A vertical control pulse generating section of the vertical frequency distinction circuit generates a noise eliminating signal for disabling input of noise during a predetermined period until arrival of a vertical synchronization signal. A distinction result latch section samples the noise eliminating signal and an inversion signal of the noise eliminating signal at the timing of input of the vertical synchronization signal, to generate two output signals. An output selecting section selects either one of the two output signals of the distinction result latch section based on a mode setting signal, to output the selected signal as a distinction result signal.

Abstract: The invention relates to a receiving device for an audio-video system. The receiving device comprises a connector, a video processing unit, an audio processing module, and a monitoring unit. The monitoring unit detects a status of an inputted signal received by the connector and controls the operation of at lease one of the video processing unit and the audio processing module in accordance with the detected result to avoid the audio-video system display abnormal image or play noise when the receiving device did not receive the inputted signal by accident.

Abstract: Provided are a method, system, and article of manufacture for generating a video output by combining a first video input and a second video input. A first input image is accessed from the first video input and a second input image is accessed from the second video input, wherein the second input image includes a selected element recorded in front of a monochromatic background. A first region and a second region are generated from the first input image. An output image that includes the first region and the second region with a gap separating the first region from the second region is generated. The selected element is placed at least over the gap in the output image, wherein predetermined areas of the first region and the second region remain visible in the output image. The output image is included in the video output.

Abstract: A video processor according to the invention is dynamically configurable as to the attributes of the video data upon which the processor operates. Some embodiments dynamically configure the processor via a sequence of instructions, where the instructions include information on the attributes of the current video data. Some embodiments include a dynamically configurable adder array that computes difference functions thereby generating error vectors. Some embodiments include a dynamically configurable adder array that computes filtering functions applied to the video data, e.g. interpolation or decimation of the incoming video prior to motion detection. Some embodiments of the invention provide dynamically configurable hardware searches, for example, for detecting motion. Some embodiments of the invention are implemented using an adaptive computing machines (ACMs). An ACM includes a plurality of heterogeneous computational elements, each coupled to an interconnection network.

Abstract: A random noise evaluation method is comprised of: capturing and obtaining current image data; calculating a difference between the current image data and an average of previous image data; calculating a current difference square sum using a sum of the difference and a previous difference square sum; and calculating a random noise value using the current difference square sum. Since a noise evaluation algorithm obtains random noises without storing image data for all pixels of a*b*n, it is able to evaluate random noise evaluation for a high-resolution image sensor even with a relatively small size of memory.

Abstract: A signal processing circuit includes: multiple digital-signal processing units operating in parallel each including a selecting unit for selecting one of multiple systems of input picture signals, a double-speed converting unit for writing the data equivalent to one field of the picture signal selected by the selecting unit in field memory, and simultaneously reading the data equivalent to one field from the field memory twice at double speed, thereby converting the frequency of the picture signal into double speed, a reading unit for reading the picture signal converted into double speed by the double-speed converting unit and temporarily stored in line memory, and a correction processing unit for subjecting the picture signal read by the reading unit to predetermined correction processing; and a control unit for performing the selection control of the multiple systems of picture signals, and the read position control of a picture signal from the line memory.

Abstract: A projection system includes a first projection apparatus, a second projection apparatus, a sensing element, and a processing unit. The first projection apparatus is used for projecting a first frame on a screen. The second projection apparatus is used for projecting a second frame on the screen. The sensing element is used for sensing the first frame and the second frame on the screen and generating a first signal corresponding to the first frame and a second signal corresponding to the second frame. The processing unit is electrically connected to the first projection apparatus, the second projection apparatus and the sensing element. The processing unit is used for receiving the first signal and the second signal and controlling the second projection apparatus according to the first signal and the second signal to overlap the second frame on the first frame on the screen.

Abstract: Aspects of the present invention include a device and system for providing reflective electrochromic switching devices having an optically reflective layer with at least one electrochromic material, a substrate, and an excitation means and controller for transmitting received light in association with transmissivity of the reflective layer at a predetermined time. The devices may be used in an array or system format to provide improved display resolutions in a manner where the devices are fixedly mounted in relation to an emitting light source.

Abstract: This display screen turning apparatus (base for a display screen) includes a platelike base member so formed as to receive the load of a display body applied to a display screen support mechanism on a partial region and to warp in a direction opposite to the direction of deflection resulting from the load of the display body with a prescribed amount of warpage when not receiving the load of the display body, and the prescribed amount of warpage is so set that the surface of the base member is substantially flattened when the base member receives the load of the display body applied to the display screen support mechanism.