JP2007225629A - Display device, movable body, display method, indication program, and its recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly view various images displayed on a display screen having a non-planar shape to a user. <P>SOLUTION: A display device comprises a control means 5 for correcting data of the images displayed on the display screen 7 in response to a display position of the images on the display screen 7. Thereby since the control means 5 corrects the data of displaying images in response to the display position of the images on the display screen 7, for instance, the images displayed on the display screen 7 having the non-planar shape to a user can be viewed by nearer images from the images displayed on the display screen having a planar shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device that displays an image on a display screen having a non-planar shape, a moving body including the display device, a display method, a display program, and a recording medium thereof.

  In recent years, development of a display device (curved surface display) having a curved display surface has been promoted.

  For example, Patent Document 1 describes a technology relating to a light emitting display device including a light emitting sheet made of an EL (Electro Luminescence) sheet and having a curved display surface, and a method for manufacturing the same. Patent Document 2 describes a technique related to a curved surface EL.

  Patent Documents 3 and 4 describe a technique related to a curved display liquid crystal panel and a method for manufacturing the curved display liquid crystal panel.

  Further, Patent Document 5 discloses a head-up display (HUD) including a curved hologram complier.

Further, for example, in Patent Document 6, there is a display device that can correct natural image display in a curved state by correcting the display surface in advance in consideration of image distortion caused by bending and curving the display surface. It is disclosed.
Japanese Patent Laid-Open No. 11-73148 (published March 16, 1999) JP 2001-52856 A (published February 23, 2001) JP 2003-295164 A (released on October 15, 2003) Japanese Patent Laid-Open No. 10-268270 (released on October 9, 1998) JP-A-2-246840 (published on October 2, 1990) JP 2000-79837 A (published March 21, 2000)

  However, in the techniques of Patent Documents 1 to 5, since the display screen is a curved surface, the displayed content may appear to be deformed by the user depending on the relative position between the user and the display screen.

  The technique of Patent Document 6 relates to a segment type display element (a display element in which electrode pattern shapes are pre-arranged in “8” characters to display numbers), and an image to be displayed has an 8-character shape. It is limited to specific images such as numbers and alphabets that are composed of combinations of segments arranged. In addition, in the manufacturing process, it is necessary to add a process for correcting the display surface in a flat state in advance, resulting in a complicated manufacturing process and an accompanying increase in cost.

  The present invention has been made in view of the above problems, and an object of the present invention is to make it possible for a user to appropriately view various images displayed on a display screen having a non-planar shape, It is an object of the present invention to provide a moving body, a display method, a display program, and a recording medium thereof.

  The display device according to the present invention is a display device that displays an image on a display screen having a non-planar shape, and includes a control unit that corrects image data displayed on the display screen according to the display position of the image on the display screen. It is characterized by having.

  According to said structure, a control means correct | amends the data of the image to display according to the display position of the image in the said display screen. Thereby, for example, the image displayed on the display screen having the non-planar shape can be visually recognized by the user as an image closer to the image displayed on the display screen having the planar shape.

  In addition, a display device according to the present invention includes a control unit that corrects character data displayed on the display screen in accordance with a character display position in the display device that displays an image on a non-planar display screen. It is characterized by being.

  Thereby, when displayed on a non-planar display screen, the character data is corrected for a character that is easily deformed and visually recognized as compared to a figure or the like. For this reason, it is possible to accurately correct the character data that particularly needs correction so that the user can visually recognize it in a natural state.

  The display device according to the present invention is a display device that displays an image on a display screen having a non-planar shape, and that determines whether or not character data is included in the image data displayed on the display screen. Presence / absence determining means, and control means for correcting at least character data according to the character display position when character data is included in the image data to be displayed. It is characterized by.

  As a result, it is possible to determine whether or not there is character data that particularly needs correction. Therefore, it can correct | amend exactly as needed.

  Furthermore, the control means may be configured to correct the shape of the character.

  Thereby, especially the character data which needs correction | amendment WHEREIN: The shape of a character can be correct | amended and it can be in the state which a user can visually recognize in a natural state.

  Further, the control means may be configured to correct relative positions of elements constituting each character with respect to character data included in image data to be displayed.

  Thus, for character data that particularly needs correction, the relative positions of the elements constituting each character can be corrected so as to change the vertical or horizontal width of the character, for example.

  Further, the control means may be configured to correct the shape of the character by correcting the data of the coordinates constituting the outline of the character for the character data included in the image data to be displayed.

  As a result, the character data is corrected by correcting the coordinate data constituting the outline (outline) of the character and correcting the shape of the character, thereby correcting the details constituting the character, which is more natural for the user. The status can be displayed.

  Furthermore, the control means may be configured to correct the relative position between characters.

  Thereby, for example, the relative positions of the characters can be corrected so as to change the interval between the characters.

  Furthermore, the control means may be configured to correct image data to be displayed at each position on the display screen according to the position of the user with respect to the display screen.

  Thereby, the data of the displayed image is corrected according to the position of the user with respect to the display screen. Therefore, even if the position of the user changes and the position on the display screen where the user deforms and visually recognizes the image changes, it is possible to appropriately correct the image data at each position on the display screen. .

  Further, the display device may include a detection unit that detects the position of the user with respect to the display screen.

  Accordingly, the position of the user can be detected using the detection unit, and the image data to be displayed can be appropriately corrected according to the detected position of the user. Therefore, for example, even if the position of the user with respect to the display screen changes, an appropriate image can be displayed according to the changed position.

  In addition, the display device includes an instruction input unit that receives an instruction from the user, and the control unit is configured to determine the position of the user with respect to the display screen in accordance with the user instruction to the instruction input unit. May be.

  Accordingly, the control unit can determine the position of the user using the instruction input unit, and can appropriately correct the image data to be displayed according to the determined position of the user.

  Furthermore, the display screen may be configured by a liquid crystal panel.

Thereby, a display device that can display various images displayed on the display screen having a non-planar shape appropriately and visually recognizable to the user can be applied to a thin and highly versatile liquid crystal panel.
The moving body according to the present invention includes any one of the display devices described above.

  Here, the moving body includes all vehicles such as vehicles such as automobiles and motorcycles, helicopters, airplanes, and ships.

  Thereby, the mobile body provided with the display apparatus which can display various images displayed on the display screen which has a non-planar shape appropriately visually recognizable to a user is realizable. Further, by mounting a display device having a non-planar display screen on these moving objects, the design of the moving object including the display device can be diversified. For example, many interior designs in recent automobiles are based on curved shapes. For this reason, by making the display screen of the display device to be mounted into a non-planar shape (for example, a curved surface shape), the interior design can be coordinated in total, and the display device can be mounted without a sense of incongruity.

  The display program of the present invention is for causing a computer provided in a display device to function as control means in any of the display devices described above.

  By causing the computer as described above to read this display program, the processing of the control means in any of the display devices described above can be realized by the computer.

  The recording medium of the present invention is a recording medium on which the above display program is recorded. By recording these display programs on a computer-readable recording medium, the display program can be easily stored and distributed. Furthermore, by reading this recording medium, the computer can execute the processing of the control means in any of the above display devices.

  The display device according to the present invention corrects the data of the image to be displayed on the display screen according to the display position of the image on the display screen in a display device having a display means for displaying an image on a display screen having a non-planar shape. The control means controls the display means so as to display the corrected image data.

  According to said structure, a control means correct | amends the data of the image to display according to the display position of the image in the said display screen. Thereby, for example, the image displayed on the display screen having the non-planar shape can be visually recognized by the user as an image closer to the image displayed on the display screen having the planar shape.

  A curved LCD (Liquid Crystal Display) 1 which is a display device according to an embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the curved LCD 1.

  As shown in FIG. 1, the curved LCD 1 includes a bitmap font DB 2, a radical composition table 3, a character correction DB 4, a CPU (control unit) 5, a position detection sensor (detection unit) 6, and a display unit (display unit). ) 7, a frame memory 8 and an input unit 11.

  The curved LCD 1 includes a liquid crystal panel (display screen) having a curved surface shape (non-planar shape). The curved LCD 1 is provided in a vehicle such as an automobile, and displays navigation information, television broadcasts, images around the vehicle, and the like. In this specification, an image is an image such as a character, a figure, a photograph, and a video image displayed on a display screen.

  Bitmap font DB2 stores bitmap fonts corresponding to a large number of characters. Here, bitmap font is one of the fonts (data format) for expressing the shape of characters. Characters are represented as a set of small square dots (dots), and they are all represented by a fixed number of grids. It represents the shape of the character.

  In the character correction DB 4, many correction contents for character codes are registered. For example, in the case of a character “high”, a table in which the area of the character area is increased and which coordinate value dot is to be filled is registered, and the character is corrected with reference to the table. Alternatively, corrected data corresponding to the character code is prepared, and may be replaced and displayed according to the display position. In the radical composition table 3, a large number of radicals, such as bias and wrinkles, constituting a Chinese character are registered as bitmap fonts. The radicals registered in the radical composition table 3 and divided into parts (parts) such as partials and wrinkles are commonly used for a plurality of letters. That is, the radicals registered in the radical composition table 3 are divided into parts, and a plurality of characters are formed by combining the radicals divided into these parts.

  The display unit 7 has a display screen having a shape curved in the horizontal direction. The display screen is a concave display screen curved in the depth direction when viewed from the user side. In this display screen, when the area located on the right side when viewed from the user side is the right area, the area located in the center is the central area, and the area located on the left side is the left area, the central area is the left area and the right area. Compared to the area, the area has a smaller curvature (flat area). The display unit 7 is a dot matrix type display panel that turns on / off pixels (display units) arranged in a vertical and horizontal matrix to display characters and figures.

  In addition, the display unit 7 can individually maintain an active element (each of which is individually connected to an electrode because each pixel is connected to an electrode). An active matrix type in which an element that can be lit) is mounted and driven may be used, or a simple matrix type in which a liquid crystal layer is sandwiched between intersecting electrodes may be used.

  In addition, the display screen in the display unit 7 is a flat display screen having a rectangular shape with an aspect ratio (aspect ratio) of 3: 7, and is curved in the horizontal direction so that the central portion is curved in the depth direction when viewed from the user. The shape is That is, in this specification, the aspect ratio means the ratio of the vertical length of the display screen to the horizontal length along the curved surface.

  The frame memory 8 stores image data to be displayed on the display unit 7.

  The input unit 11 includes an interface (not shown) for connecting a navigation system, a television broadcast receiver, a camera, and the like. From these external devices, image data such as navigation information, television broadcasts, and images taken around the vehicle is input, and the input information is transmitted to the CPU 5.

  The sensor 6 detects the position of the user (which area is in front of the left area, the center area, and the right area of the display screen). The configuration of the sensor 6 is not particularly limited. For example, the sensor 6 may be one that detects the position of the user using infrared rays, or includes a camera that captures the display direction, and a result captured by the camera. The position of the user may be detected from the above.

  The CPU 5 includes a character presence / absence determining unit 9 that determines whether or not character data is included in image data input from the outside, and a character code determining unit 10 that determines a character code. The character code is a unique number assigned to each character or symbol, such as a JIS code, for encrypting characters and symbols when they are transmitted and received between computers.

  Further, the CPU 5 corrects the image data to be displayed as necessary so that the user can visually recognize the image data to be displayed at each position on the display screen, and displays the image on the display screen.

  Further, the CPU 5 determines the position of the user with respect to the display screen based on the detection result by the sensor 6, and changes the correction condition at each position of the display screen according to the position of the user with respect to the display screen. That is, when the character is displayed on the curved display screen, the correction condition is changed so that the character can be seen from the position where the user is present with a normal character width.

  A method of changing the condition for correcting the image data displayed by the CPU 5 in accordance with the change in the position of the user with respect to the display screen will be described. FIG. 7 is a plan view schematically showing the relationship between the display screen of the curved LCD 1 and the position of the user. It is assumed that characters are displayed on the display screen of the curved LCD 1 and that the user is in the area in front of the left area of the display screen, indicated by A in FIG. The front of the display screen is the front direction of the display screen where the displayed image can be seen.

  In the example shown in FIG. 7, the characters displayed in the center area of the display screen appear normally (naturally) to the user. That is, the width of the character displayed in the central area is visually recognized as substantially the same width as the actually displayed image. In addition, characters displayed in the right area of the display screen can be normally viewed by the user.

  However, in a state where the image is displayed without correcting the character data, the characters displayed in the left end area of the display screen appear to be long and narrow to the user. That is, the width of the character appears to be narrower than the actually displayed image.

  Therefore, if the CPU 5 determines from the detection result of the sensor 6 that the user is in front of the left end area of the display screen, the CPU 5 displays characters whose data has been corrected by the CPU 5 in the left end area of the display screen as will be described later. In the center area and the right end area, characters whose data are not corrected are displayed.

  In this way, by correcting and displaying the character data to be displayed in the left end area of the display screen, the character displayed in the left end area can be made flat with respect to the user in front of the left end area of the display screen. As in the case of looking at the characters displayed on the screen, the character is visually recognized with a normal character width.

  Similarly, if the CPU 5 determines from the detection result of the sensor 6 that the user is in front of the right end area of the display screen, the CPU 5 displays a character whose data has been corrected by the CPU 5 as will be described later. Characters whose data has not been corrected are displayed in the center area and the left end area.

  Furthermore, when the CPU 5 determines from the detection result of the sensor 6 that the user is in front of the central area of the display screen, the CPU 5 displays characters whose data has not been corrected in all areas of the display screen.

  Here, a method in which the CPU 5 corrects character data composed of a bitmap font will be described. FIG. 8A shows the character “word” and the character “high” displayed without correction of the data in FIG. 9A. As shown in FIGS. 8A and 9A, the character width is normal.

  On the other hand, when the user is in front of the left area of the display screen, the word “word” displayed in the left area of the display screen after data correction is shown in FIG. Are shown in FIG. 9B. As shown in FIGS. 8B and 9B, the CPU 5 corrects the data so that the character is displayed wider than the width of the normal character.

  The CPU 5 refers to the radical composition table 3 for the word “word” and breaks it into a radical “word” and a radical “吾”. Correct so that the gap is displayed widely. That is, the dot (pixel) indicating the character is displayed by increasing the number of rows of dots between the character bias and the wrinkle. At this time, it is preferable that the total number of dots in the character display area (that is, the number of dots used for character display) itself does not change.

  Further, the CPU 5 determines that the character “high” is not a combination of bias and wrinkle with reference to the radical composition table 3, and refers to the character correction DB 4 to read the character without disassembling the character data. Is corrected so that it is partially displayed widely. That is, the display is performed by increasing the number of dot rows indicating the left portion of the character.

  Similarly, when the user is in front of the right area of the display screen and displays a “high” character in the right area of the display screen, the CPU 5 increases the number of columns of dots indicating the right portion of the character, Correct the characters so that they are partially displayed broadly. The “word” character is displayed by increasing the number of rows of dots between the character bias and the 旁.

  Next, a procedure for correcting character data composed of bitmap fonts and displaying an image on the display screen in the curved LCD 1 will be described. FIG. 3 is a flowchart showing a procedure for displaying an image on the curved LCD 1 of FIG.

  As shown in FIG. 3, the CPU 5 determines whether or not character data is included in the image data input from the outside to the input unit 11 by the character presence / absence determination unit 9 (S1).

  When the CPU 5 determines that the image data does not include character data (S1, No), the CPU 5 temporarily stores the image data in the frame memory 8 without correcting the image data (S14). Thereafter, the CPU 5 extracts the image data from the frame memory 8 and displays the image on the display screen (S15). Thereby, the display process is ended (end).

  When the CPU 5 determines that the image data includes character data by the character presence / absence determination unit 9 (S1, Yes), the character code determination unit 10 determines the character code (S2) and extracts the character data (S3). ). That is, the character code determination unit 10 determines the character code of the character data input from the outside, and decrypts the encrypted character data.

  Further, the CPU 5 refers to the bitmap font DB2 (S4) and forms the combined character data as a bitmap font.

  Further, the CPU 5 determines whether the character data included in the input image data is displayed in the central area (flat area) of the display screen (S5).

  When the CPU 5 determines that the character data included in the input image data is image data to be displayed in the central area (flat area) (Yes in S5), the CPU 5 does not correct the character data and corrects the character data other than the character data. The image data is combined and temporarily stored in the frame memory 8 (S13).

  On the other hand, if the CPU 5 determines that the character data included in the input image data is to be displayed at a position other than the central area (S5, No), the CPU 5 causes the sensor 6 to detect the position of the user ( S6). Further, the CPU 5 determines whether or not the character is an image displayed in an area of the display screen where the user is present (an area of the user closest to the display screen) (S7).

  When the CPU 5 determines that the character data included in the input image data is an image displayed in an area where the user is not present (an area other than the area where the user is present) (S7, No) The character data is not corrected but is synthesized with image data other than the character data, and is temporarily stored in the frame memory 8 (S13).

  If the CPU 5 determines that the character data included in the input image data is an image displayed in the area where the user is present (S7, Yes), refer to the radical configuration table 3 ( S8) It is determined whether the character data is a combination of radicals registered in the radical configuration table 3, for example, bias or wrinkles (S9).

  When it is determined that the character data is a combination of deviation and wrinkle registered in the radical composition table 3 (S9, Yes), the CPU 5 determines the character data based on the curvature of the display screen. The combined position of deviation and wrinkle is corrected (S10). The corrected character data is combined with image data other than the character data by the CPU 5, and is temporarily stored in the frame memory 8 (S13).

  When it is determined that the character data is not a combination of the deviation and wrinkle registered in the radical composition table 3 (S9, No), the CPU 5 refers to the character correction DB 4 (S11), and the character data Correction is performed (S12).

  Next, the CPU 5 combines the corrected character data and image data other than the character data and temporarily stores them in the frame memory 8 (S13).

  In S <b> 13, the CPU 5 instructs the display unit 7 to display the combined data once stored in the frame memory 8 from the frame memory 8. As a result, the display unit 7 displays an image on the display screen (S15), and the display process ends (end).

  As described above, in the curved LCD 1, the CPU 5 corrects the characters displayed on the curved display screen according to the position of the user with respect to the display screen so that the characters can be seen from the position where the user is present with a normal character width. Thereby, no matter where the user looks at the display screen, the displayed characters are visually recognized as having the same character width. Further, the image displayed on the display screen having the curved surface shape can be visually recognized by the user in the same manner as the image displayed on the display screen having the planar shape.

  Further, unlike the segment type display panel using the method of displaying the numbers by arranging the electrode pattern shapes in an “eighth-shape” type as in Patent Document 6, the curved LCD 1 is a dot matrix type display panel. The CPU 5 (control circuit) that adjusts the expansion / contraction of the image data corrects the displayed image data itself.

  Therefore, conditions for correcting image data can be changed, and various characters can be corrected and displayed. That is, the correction condition of the image data can be changed according to the character (image) to be displayed, the position of the user with respect to the display screen, etc., and these images can be visually recognized by the user in a more natural state.

  On the curved LCD 1, as described above, the character width is corrected and displayed. In general, when characters are displayed on a curved display screen, they are easily deformed and visually recognized as compared with the case of displaying other graphics. For this reason, it is possible to accurately correct a character that particularly needs correction so that the user can visually recognize it with a normal character width.

  Further, the curved LCD 1 has data for display in advance, and the data is replaced and displayed depending on the arrangement and display location of the user. That is, the bias and the heel are possessed as separate data, and the data of the bias and the heel are combined and displayed each time depending on the display position. Thereby, it is possible to accurately correct a character composed of unevenness and wrinkles so that the user can visually recognize the character with a normal character width.

  Further, in the curved LCD 1, the CPU 5 corrects the combined position of deviation and wrinkle for character data. That is, for example, the CPU 5 corrects the relative positions of the relative positions of bias and wrinkles, which are constituent elements of characters, registered in the radical configuration table 3 as a minimum unit. Therefore, the character data can be corrected more accurately by correcting the relative positions of the radicals constituting the characters or the positions of the characters. In other words, in character data, the combination arrangement is changed according to the display position on the LCD due to the data structure divided into bias and heel so that the user feels the same character width from any position. Display.

  In addition, the curved LCD 1 corrects the image data to be displayed based on the detection result of the position of the user by the sensor 6 under correction conditions corresponding to the position of the user with respect to the display screen. Therefore, by changing the position of the user, even if the position on the display screen where the image is deformed and viewed by the user changes, the image data at each position on the display screen can be corrected appropriately.

  Further, in the curved LCD 1, the CPU 5 is configured to correct the relative positions of the elements constituting each character with respect to the character data included in the image data to be displayed. However, the present invention is not limited to this, and the CPU 5 may be configured to correct the relative positions of characters in character data included in image data to be displayed. Thereby, for example, the relative positions of the characters can be corrected so as to change the interval between the characters.

  In the above description, a configuration has been described in which character data is corrected using a bitmap font with the constituent element of the character as the minimum unit. However, the present invention is not limited to this. For example, character data may be corrected using a vector font (for example, an outline font or a skeleton font). The outline font is one of the fonts (data format) for expressing the shape of the character. The line representing the outline of the character (outline) is converted to the vertex coordinate data, straight line, and curve by the calculation formula. It is drawn with function data that represents and the inside is filled in to display the character shape. A skeleton font is a font generated by combining data representing a character skeleton with data consisting of outlines for fleshing out the skeleton.

  Here, a configuration in which character data is corrected using an outline font and an image is displayed will be described. Although the skeleton font is not described, it can be used instead of the outline font with the same configuration. FIG. 2 is a block diagram showing a configuration of the curved LCD 1 that corrects and displays character data using an outline font.

  The curved LCD 1 includes a CPU 5, a sensor 6, a display unit 7, a frame memory 8, an input unit 11, and an outline DB 13.

  In the outline DB 13, vertex coordinate data and function coordinate data indicating straight lines and curves constituting a character outline are registered.

  The CPU (control means) 5 includes a character width / height correction unit 12, a character presence / absence determination unit 9, and a character code determination unit 10. The character width / height correction unit 12 refers to the outline DB 13 and corrects the character width and height for character data.

  Here, a procedure for correcting character data and displaying an image using an outline font will be described. FIG. 4 is a flowchart showing a procedure for displaying an image on the curved LCD 1 of FIG.

  As shown in FIG. 4, the CPU 5 determines whether or not character data is included in the image data input from the outside to the input unit 11 by the character presence / absence determination unit 9 (S21).

  When the CPU 5 determines that the image data does not include character data (S21, No), the CPU 5 temporarily stores the image data displayed on the frame memory 8 without correcting the image data (S30), and then retrieves it. Then, the image is displayed on the display screen (S31). As a result, the display process ends (end).

  On the other hand, when the CPU 5 determines that the image data includes character data (S21, Yes), the character code determination unit 10 determines the character code (S22) and extracts the character data (character data (S23). Further, the CPU 5 refers to the outline DB 13 (S24) and forms the combined character data as an outline font.

  Further, the CPU 5 determines whether or not the character data is the content displayed in the flat area of the display unit 7 (S25). When it is determined that the character data is an image displayed in the flat area (S25, Yes), the CPU 5 synthesizes the character data with image data other than the character data without correcting the character data, and temporarily stores it in the frame memory 8. (S29).

  When it is determined that the character data is an image displayed at a position other than the flat area (S25, No), the CPU 5 determines the position of the user with respect to the display screen (S26). Further, the CPU 5 determines whether or not the character is an image displayed in the area on the display screen where the user is present (S27).

  When the CPU 5 determines that the character is an image to be displayed in the area where the user is not present (S27, No), the character is combined with the uncorrected character data and the image data other than the character data, and once the frame is displayed. It is stored in the memory 8 (S29).

  When the CPU 5 determines that the character is an image displayed in the area where the user is present (S27, Yes), the CPU 5 corrects the data of the coordinates constituting the character outline based on the curvature of the display screen. The character shape, for example, at least one of height and width is corrected (S28). At this time, the CPU 5 changes the correction condition at each position on the display screen in accordance with the change in the position of the user with respect to the display screen.

  The corrected character data is combined with image data other than the character data by the CPU 5, and is temporarily stored in the frame memory 8 (S29).

  In S29, the CPU 5 instructs the display unit 7 to take out the data that has been synthesized and temporarily stored in the frame memory 8 from the frame memory 8. As a result, the display unit 7 displays an image on the display screen (S15), and the display process ends (end).

  In this way, the character data can be corrected to the details that make up the character by correcting the height and width of the character using the coordinate data that makes up the outline of the character. Can be displayed.

  In the above description, the CPU 5 is configured to change the correction condition at each position on the display screen according to the detection result of the position of the user with respect to the display screen by the sensor 6.

  However, the present invention is not limited to this. For example, the correction condition may not be changed. An image display procedure in such a method will be described.

  FIG. 5 is a flowchart showing a procedure for displaying an image on the curved LCD 1 using a bitmap font without changing the correction condition. In addition, the procedure of S41-S45 and S52-S53 is the same as that of S1-S5 and S14-S15 (refer FIG. 3), respectively, and description is abbreviate | omitted.

  When the CPU 5 determines that the character data is an image to be displayed in the flat area (S45, Yes), the CPU 5 synthesizes it with image data other than the character data without correcting the character data, and once the frame memory 8 (S51).

  On the other hand, when it is determined that the character data is an image displayed at a position other than the flat area (S45, No), the CPU 5 refers to the radical composition table 3 (S46), and the character data is the radical composition table. 3 is determined whether it is a combination of radicals such as bias and wrinkles registered in 3 (S47).

  Here, when it is determined that the character data is not a combination of deviation and wrinkle registered in the radical configuration table 3 (S47, No), the CPU 5 refers to the character correction DB 4 (S49), Character correction is performed (S50). Then, the CPU 5 combines the corrected character data with image data other than the character data, and temporarily stores it in the frame memory 8 (S51).

  On the other hand, if it is determined that the character data is a combination of the deviation and the wrinkles registered in the radical composition table 3 (S47, Yes), the CPU 5 determines the character data based on the curvature of the display screen. Then, the combined position of deviation and wrinkle is corrected (S48). Then, the CPU 5 combines the corrected character data with image data other than the character data, and temporarily stores it in the frame memory 8 (S51).

  Next, the CPU 5 takes out the data once stored in the frame memory 8 in S51 from the frame memory 8 and displays it on the display unit 7 (S53). Thereby, the CPU 5 ends the display process (end).

  Further, in the example of FIG. 5, the example in which display is performed without changing the correction condition using the bitmap font has been described. However, the present invention is not limited thereto, and for example, the correction condition is not changed using the outline font. The character data may be corrected to display an image. A procedure for displaying an image in such a configuration will be described.

  FIG. 6 is a flowchart showing the procedure for correcting the character data without changing the correction condition and displaying the image on the curved LCD 1. Assume that image data is input to the input unit 11 from the outside. The procedures of S61 to S65 and S68 to S69 are the same as the procedures of S21 to S25 and S30 to S31 (see FIG. 4), respectively, and description thereof is omitted.

  When it is determined that the character data is displayed in the flat area (S65, Yes), the CPU 5 synthesizes the character data with image data other than the character data without correcting the character data, and temporarily stores it in the frame memory 8. (S67).

  On the other hand, when it is determined that the character data is to be displayed at a position other than the flat area (S65, No), the CPU 5 corrects the character width and height of the character data based on the curvature of the display screen. (S66). Then, the CPU 5 combines the corrected character data with data other than the character data and stores it in the frame memory 8 (S67).

  Next, the CPU 5 takes out the data once stored in the frame memory 8 in S67 from the frame memory 8 and displays it on the display unit 7 (S69). Then, the CPU 5 ends the display process (end).

  In the above description, the CPU 5 is configured to change the correction condition based on the change in the position of the user based on the detection result of the position of the user with respect to the display screen by the sensor 6.

  However, the method for detecting the position of the user is not limited to this. For example, as shown in FIG. 10, the curved LCD 1 includes an instruction input unit (instruction input unit) 14 that receives an instruction from the user, and the CPU 5 displays the display screen according to the user instruction to the instruction input unit. It is good also as a structure which judges the user's position with respect to.

  Alternatively, the instruction input unit 14 includes an input unit through which a user inputs an instruction, and a transmission unit that wirelessly transmits information input by the user. It is good also as a structure which consists of a radio | wireless receiving part which receives performed information.

  In the above description, only the character data is corrected among the image data. However, the present invention is not limited to this. For example, image data including graphics may be corrected. For example, the configuration may be such that the number of columns and rows of dots constituting the image data is increased or decreased so that the horizontal and vertical widths of the image are displayed wider or narrower. In this way, the CPU 5 changes the displayed content as needed depending on the display position, so that the content is displayed in the same manner as it appears at the regular position.

  In the above description, the CPU 5 is configured to correct the combined position of the deviation and wrinkle of character data using a bitmap font. However, the present invention is not limited to this. For example, a bitmap font may be used to correct the “width” between bias and wrinkle.

  Or CPU5 is good also as a structure which correct | amends the synthetic | combination position of radicals, such as a crown, a head, a stance, etc. of character data using a bitmap font.

  Or it is good also as a structure which correct | amends the synthetic | combination position of characters of character data so that character spacing may be adjusted, for example.

  In the above description, the display device is the curved LCD 1. However, the present invention is not limited to this, and the display device may be an EL having a curved display screen, such as an organic EL (Electro Luminescence) or inorganic EL, a head-up display, or a plasma display.

  Further, in the above, the display device is provided in a vehicle such as an automobile, and displays navigation information, television broadcasting, images around the vehicle, and the like. However, the use of the display device is not limited to this. For example, the display device may be a television broadcast display device that is connected to a reception device that receives a television broadcast and displays the received video. Alternatively, it may be connected to a video playback device, personal computer, DVD playback device, etc., and may display image data input from these devices, or may be provided integrally with these devices. .

  Further, for example, it may be provided as an instrument panel for an automobile, and may display instruments such as a speedometer, a tachometer, a water temperature gauge, and a hydraulic gauge. In addition, instruments such as a speedometer, navigation information, television broadcasting, an image around the own vehicle, and the like may be displayed simultaneously or selectively. In addition, not only automobiles but also motorcycles, bicycles, airplanes, helicopters, ships, etc. may be mounted on any vehicle (mobile body) and display instruments, navigation information, TV broadcasts, radars, etc. . Further, the display device is not limited to a vehicle, and may be a display device provided in a device such as a mobile phone, a PHS (Personal Handyphone System, registered trademark), a PDA (Personal Digital Assistant), a notebook computer, or a watch.

  In the above description, the display screen has a shape curved in the horizontal direction. However, the shape of the display screen is not limited to this, as long as it has a non-planar shape. For example, the display screen may have a shape that is curved in the vertical direction or a curved shape that is curved in the vertical and horizontal directions, for example, a spherical shape. Furthermore, the curvature at the curved portion of the display screen may be different depending on each position on the display screen, or may be a constant curvature. Further, a portion having a plurality of planar shapes may be combined into a curved surface shape, or a combination of a planar shape and a curved surface shape may be used.

  Further, in the case of a display device having a shape that is curved in the vertical and horizontal directions, for example, the ratio of the width before and after correction is different between the upper and lower portions of one character, or the height before and after correction is different between the left and right sides. You may correct | amend so that a ratio may differ. For example, correct so that the ratio of width before and after correction between characters is different at the top and bottom, or so that the ratio of height before and after correction between characters and characters is different between the left and right sides. May be.

  Further, the display screen in the display unit 7 is a concave display screen having a central portion curved in the depth direction when viewed from the user side, but is not limited thereto. For example, a convex display screen having a central portion curved toward the user as viewed from the user may be used.

  In the above description, the display screen has an aspect ratio (aspect ratio) of 3: 7 or more. However, the present invention is not limited to this, and may be, for example, 3: 4, which is the same as that used for a normal television, or 9:15, which is used for a wide screen television.

  Further, the shape of the display screen is not particularly limited. For example, a display screen formed of a circular or elliptical plane may be curved in a concave shape or a convex shape, or may be asymmetric in the vertical and horizontal directions.

  In the above description, all processing in the curved LCD 1 is performed under the control of the CPU 5. However, the present invention is not limited to this, and an information processing apparatus capable of recording a program for performing these processes on a recording medium and reading the program may be used instead of the CPU 5.

  In this configuration, the arithmetic unit (CPU or MPU) of the information processing apparatus reads the program recorded on the recording medium and executes the process. Therefore, it can be said that this program itself realizes the processing.

  Here, as the information processing apparatus, in addition to a general computer (workstation or personal computer), a function expansion board or a function expansion unit mounted on the computer can be used.

  The above program is a program code (execution format program, intermediate code program, source program, etc.) of software that realizes processing. This program may be used alone or in combination with other programs (such as OS). The program may be read from the recording medium, temporarily stored in a memory (RAM or the like) in the apparatus, and then read and executed again.

  The recording medium for recording the program may be easily separable from the information processing apparatus, or may be fixed (attached) to the apparatus. Furthermore, it may be connected to the apparatus as an external storage device.

  Such recording media include magnetic tapes such as video tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks and hard disks, and optical disks such as CD-ROM, MO, MD, DVD and CD-R (magneto-optical). Disc), memory cards such as IC cards and optical cards, semiconductor memories such as mask ROM, EPROM, EEPROM, and flash ROM can be applied.

  Also, a recording medium connected to the information processing apparatus via a network (intranet / Internet) may be used. In this case, the information processing apparatus acquires the program by downloading via the network. That is, the above program may be acquired via a transmission medium (a medium that dynamically holds the program) such as a network (connected to a wired line or a wireless line). The program for downloading is preferably stored in advance in the apparatus (or in the transmission side apparatus / reception side apparatus).

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope shown in the claims. In other words, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.

  The present invention can be applied to all display devices having a non-planar display screen, and can be applied to, for example, an EL, an LCD, or a plasma display. The display device of the present invention is an image display device such as a television or a monitor, an OA device such as a word processor or a personal computer, or an image display device provided in an information terminal such as a video camera, digital camera, or mobile phone, It can be used for various purposes such as watches. Further, it may be mounted on a vehicle such as an automobile.

It is a block diagram which shows the structure of the display apparatus based on one embodiment of this invention. It is a block diagram which shows the structure of the display apparatus based on other embodiment of this invention. 2 is a flowchart illustrating a procedure for displaying an image by correcting character data by changing a correction condition using a bitmap font in the display device of FIG. 1. 3 is a flowchart showing a procedure for displaying an image by correcting character data by changing a correction condition using an outline font in the display device of FIG. 2. 2 is a flowchart showing a procedure for correcting character data and displaying an image using a bitmap font without changing the correction condition in the display device of FIG. 1. FIG. 3 is a flowchart showing a procedure for correcting the character data without changing the correction condition and displaying an image using the outline font in the display device of FIG. 2. It is the top view seen from the upper direction of the display apparatus which shows the positional relationship of the display screen with which the display apparatus of FIG. 1 or FIG. 2 is equipped, and a user. It is a front view which shows the structure of the character of "word" displayed on the display screen with which the display apparatus of FIG. 1 is equipped, (a) is a front view which shows the structure of the character displayed without correcting data, (B) is a front view which shows the structure of the character displayed after data was correct | amended. It is a front view which shows the structure of the character of "high" displayed on the display screen with which the display apparatus of FIG. 1 is equipped, (a) is a front view which shows the structure of the character displayed without correcting data, (B) is a front view which shows the structure of the character displayed after data was correct | amended. It is a block diagram which shows the structure of the display apparatus based on other embodiment of this invention.

Explanation of symbols

1 Curved LCD (display device)
2 Bitmap font DB
3 radical composition table 4 character correction DB
5 CPU (control means)
6 Sensor (detection means)
7 Display section (display means)
8 Frame memory 9 Character presence / absence determination unit 10 Character code determination unit 11 Input unit 12 Character width / height correction unit 13 Outline DB
14 Instruction input unit (instruction input means)

Claims (15)

In a display device that displays an image on a display screen having a non-planar shape,
A display device comprising: control means for correcting data of an image to be displayed on the display screen in accordance with a display position of the image on the display screen. In a display device that displays an image on a display screen having a non-planar shape,
A display device comprising control means for correcting character data to be displayed on the display screen in accordance with a character display position. In a display device that displays an image on a display screen having a non-planar shape,
Character presence / absence determining means for determining whether or not character data is included in the image data displayed on the display screen;
Control means for correcting at least character data according to a character display position when character data is included in the image data to be displayed. apparatus.   The display device according to claim 2, wherein the control unit corrects the shape of the character.   4. The display device according to claim 2, wherein the control unit corrects relative positions of elements constituting each character in character data included in image data to be displayed.   4. The display device according to claim 2, wherein the control unit corrects the coordinate data constituting the outline of the character with respect to the character data included in the image data to be displayed.   The display device according to claim 2, wherein the control unit corrects a relative position between characters.   The display device according to claim 1, wherein the control unit corrects image data to be displayed at each position on the display screen according to a position of the user with respect to the display screen.   9. The display device according to claim 8, further comprising detection means for detecting a position of the user with respect to the display screen. Comprising an instruction input means for receiving an instruction from the user;
The display device according to claim 8, wherein the control unit determines a position of the user with respect to the display screen in accordance with a user instruction to the instruction input unit.   The display device according to claim 1, wherein the display screen includes a liquid crystal panel.   A moving body comprising the display device according to claim 1. A display method for displaying an image on a display screen having a non-planar shape,
A display method comprising: correcting image data to be displayed on the display screen according to a display position of the image on the display screen.   The display program for functioning the computer with which the display apparatus was equipped as a control means in the display apparatus of any one of Claims 1-11.   The recording medium which recorded the display program of Claim 14.

Images