JP4404135B2 - Display device - Google Patents

Description

  The present invention relates to a display device that displays an instrument image having at least a pointer and an index.

A display panel such as a liquid crystal panel in which a plurality of pixels are formed in a matrix is provided, and an instrument image having at least a pointer image forming a pointer and an index image forming an index indicated by the pointer is displayed on the display panel. A display device is disclosed (see Patent Document 1).
JP 2006-21573 A

  Although not clearly described in Patent Document 1, when an instrument image is displayed so that the pointer image and the index image overlap, it is difficult to read the index represented by the index image due to the overlap.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a display device that can read an index represented by an index image when the pointer image and the index image are displayed in an overlapping manner. And

  In order to achieve the above object, the present invention employs the following technical means.

The display device according to claim 1, comprising: a display panel capable of displaying an instrument image having a pointer image that forms a pointer; an index image that forms an index indicated by the pointer; and the pointer image and the index image Control means for displaying the instrument image on the display panel so that superimposed display is possible, and the control means reads the index represented by the index image during the superimposed display. At least one of the pointer form of the pointer image and the index display mode of the index image is changed as possible, and the control unit continuously displays the pointer image at a position where the pointer image and the index image overlap each other. At least one of the pointer form and the indicator display mode is changed so that the indicator image can be shown, and the control means displays the indicator image in front of the superimposed display. The pointer image is displayed so as to overlap the pointer image, and the peripheral portion around the overlapping portion in the pointer image is displayed with the brightness of the pointer image, the brightness of the index image, and both the pointer image and the index image. The pointer form is changed by displaying with a lightness different from the lightness of the background .

  In this configuration, at the time of overlay display, at least one of the pointer form of the pointer image and the index display mode of the index image is changed so that the index represented by the index image can be read. Thereby, it is possible to read the index represented by the index image in the superimposed display.

In this configuration, at least one of the pointer form and the index display form is changed so that the pointer image can be continuously displayed at the position where the pointer image and the index image overlap. This makes it possible to continuously show the pointer image at a position overlapping with the index image, so that it is easy to recognize which index image is pointed to by the pointer image .

Furthermore, in this configuration, since the index image is displayed so as to overlap the pointer image at the time of overlay display, the index represented by the index image can be read. Further, in this configuration, the peripheral portion around the overlapping portion in the pointer image is displayed with brightness different from any of the pointer image, the index image, and the background. As a result, it is possible to provide a sense of connection between the pointer images at the peripheral portion, so that the pointer images can be continuously displayed at positions overlapping the index image.

The main part of the display device according to claim 2 is configured such that the control unit displays the index image so as to overlap the pointer image at the time of superimposed display, and the peripheral portion around the overlapping portion in the pointer image is displayed. The pointer form is changed by displaying the hue of the pointer image, the hue of the index image, and the hue of the background of both the pointer image and the index image.

  In this configuration, since the index image is displayed so as to be superimposed on the pointer image during overlay display, the index represented by the index image can be read. In this configuration, the peripheral portion around the overlapping portion in the pointer image is displayed in a hue different from any of the pointer image, the index image, and the background. As a result, it is possible to provide a sense of connection between the pointer images at the peripheral portion, so that the pointer images can be continuously displayed at positions overlapping the index image.

The display device according to claim 3 is characterized in that the control means displays the peripheral portion in a hue different from any of the hue of the pointer image, the hue of the index image, and the hue of the background.

In this configuration, since the configuration described in claim 1 is also provided, the above-described effects can be further enhanced.

The display device according to a fourth aspect is characterized in that the control means displays the peripheral portion with a lightness between the lightness of the background and the lightness of the pointer image.
In this configuration, the peripheral portion is displayed with a lightness between the lightness of the background and the lightness of the pointer image. Thereby, in order to display the index image with the peripheral portion displayed with the brightness between the brightness of the background and the brightness of the pointer image as the background, the pointer image is displayed as compared with the case of displaying the index image with the pointer image as the background. It is possible to easily recognize the index image that overlaps. For this reason, the index represented by the index image can be read.

  Further, since the peripheral portion is displayed with a lightness between the lightness of the background and the lightness of the pointer image, the peripheral portion can be connected to the pointer image. As a result, it is possible to continuously show the pointer image at a position overlapping the index image.

The display device according to claim 5 is characterized in that the control means displays the peripheral portion in a hue between the hue of the background and the hue of the pointer image.

  In this configuration, the peripheral portion is displayed with a hue between the hue of the background and the hue of the pointer image. Thus, since the index image is displayed with the peripheral portion displayed in the hue between the hue of the background and the hue of the pointer image as the background, the pointer image is displayed as compared with the case of displaying the index image with the pointer image as the background. It is possible to easily recognize the index image that overlaps. For this reason, the index represented by the index image can be read.

  Further, since the peripheral portion is displayed with the brightness between the hue of the background and the hue of the pointer image, the peripheral portion can be connected to the pointer image. As a result, it is possible to continuously show the pointer image at a position overlapping the index image.

The display device according to claim 6 is characterized in that the control means displays the peripheral portion in a hue between the hue of the background and the hue of the pointer image. In this structure, since it has the structure described in Claim 4 , the above-mentioned effect can be heightened more.

The display device according to claim 7 is characterized in that the control means displays the peripheral portion with a lightness substantially in the center between the lightness of the background and the lightness of the pointer image. Here, when the peripheral portion is displayed with brightness close to the background, the index image overlapping the pointer image can be easily recognized, but the connection feeling of the pointer image is reduced in the peripheral portion. On the other hand, when the peripheral part is displayed with lightness close to that of the pointer image, it is difficult to recognize the index image overlapping the pointer image, but the sense of connection of the pointer image is improved in the peripheral part.

  Thus, making it easy to recognize the index image that overlaps the pointer image is contradictory to improving the sense of connection between the pointer images. On the other hand, in this configuration, since the peripheral portion is displayed with the brightness at the substantially center between the background and the pointer image, the above-described effect can be improved more appropriately.

The display device according to claim 8 is characterized in that the control means displays the peripheral portion with a hue substantially in the center between the hue of the background and the hue of the pointer image. Here, when the peripheral portion is displayed with a hue close to the background, the index image overlapping the pointer image can be easily recognized, but the connection feeling of the pointer image is reduced in the peripheral portion. On the other hand, when the peripheral portion is displayed with a hue close to the pointer image, it is difficult to recognize the index image overlapping the pointer image, but the sense of connection of the pointer image is improved in the peripheral portion.

  Thus, making it easy to recognize the index image that overlaps the pointer image is contradictory to improving the sense of connection between the pointer images. On the other hand, in this configuration, since the peripheral portion is displayed with a hue substantially in the center between the background and the pointer image, the above-described effect can be more appropriately enhanced.

The display device according to claim 9 is characterized in that the control means displays the peripheral portion with a lightness substantially in the center between the lightness of the background and the lightness of the pointer image. In this structure, since the structure described in Claim 8 is combined, the above-mentioned effect can be improved more appropriately.

In the display device according to claim 10 , the brightness of the peripheral portion gradually changes from the brightness of the pointer image to the brightness of the background from the both ends of the peripheral portion toward the center of the overlapping portion in the longitudinal direction of the pointer image. The gradation to be displayed is displayed on the periphery. Thereby, the feeling of connection of the pointer images is improved on both ends of the peripheral portion, and the index image overlapping the pointer image can be easily recognized on the center side of the overlapping portion. Therefore, the above-described effects can be obtained, and the design can be enhanced by the gradation effect in the peripheral portion.

In the display device according to claim 11 , the brightness of the peripheral portion gradually changes from the brightness of the pointer image to the brightness of the background from one end to the other end of the peripheral portion in the longitudinal direction of the pointer image. It is characterized by displaying the gradation to go on the periphery. Thereby, the sense of connection of the pointer images is improved on one side of both ends of the peripheral portion, and the index image overlapping the pointer image can be easily recognized on the other side of both ends of the peripheral portion. As a result, the above-described effects can be obtained, and the design can be enhanced by the gradation effect in the peripheral portion.

The display device according to claim 12 is characterized in that the brightness difference between the index image indicated by the pointer image and the background is set higher than the brightness difference between the other index images and the background. Thereby, the index image indicated by the pointer image can be more easily recognized, so that the index represented by the index image can be more easily read.

In the display device according to the thirteenth aspect , the control unit displays a shadow portion representing the shadow of the index image indicated by the pointer image adjacent to the index image indicated by the pointer image. Thereby, the index image indicated by the pointer image can be more easily recognized, so that the index represented by the index image can be more easily read.

The display device according to claim 14 , wherein a display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. And at the time of overlay display, the control means determines whether the indicator image and the pointer image overlap each other between the brightness of the pointer image and the index image before overlapping. By displaying in becomes lightness, in a display device for varying the index display mode, characterized in that when overlapped the index image and the pointer image to be displayed at said different brightness across index image not only the overlapping portion .

  In this configuration, the overlapping portion is displayed with a lightness different from both the lightness of the pointer image and the lightness of the index image in the superimposed display, so that the index represented by the index image can be read. In addition, since it is possible to provide a sense of connection between the pointer images at the overlapping portion, it is possible to continuously display the pointer images.

The display device according to claim 15 , wherein a display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. And at least one of the hue of the pointer image and the hue of the index image before overlapping, the control means changes the overlapping portion of the index image and the pointer image at the time of superimposed display. By displaying in comprising hue, a display device for varying the index display mode, characterized in that when overlapped the index image and the pointer image to be displayed by the different colors of the entire index image not only the overlapping portion .

  In this configuration, the overlapping portion is displayed in a hue different from both the hue of the pointer image and the hue of the index image in the superimposed display, so that the index represented by the index image can be read. In addition, since it is possible to provide a sense of connection between the pointer images at the overlapping portion, it is possible to continuously display the pointer images.

The display device according to claim 16 is characterized in that the control means displays the overlapping portion in a hue different from both the hue of the pointer image and the hue of the index image. In this structure, since it has the structure described in Claim 14 , the above-mentioned effect can be improved more.

A display device according to claim 17 , wherein a display panel capable of displaying an instrument image having a pointer image constituting a pointer and an index image constituting an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. JP is varied at least one, control means, the auxiliary image to read the index representing the index image, by displaying the periphery of the index image, changing the index display mode of To.

  In this configuration, since the auxiliary image for reading the index represented by the index image is displayed around the index image during overlay display, the index represented by the index image can be read. In addition, since the index represented by the index image can be read by the auxiliary image, it is possible to adopt a configuration in which the pointer image is not divided by the index image, which makes it possible to continuously display the pointer image. .

The display device according to claim 18 is characterized in that the auxiliary image is displayed at a position shifted from the pointer image in the moving direction of the pointer image to represent the index.

  In this configuration, since the auxiliary image is displayed at a position shifted from the pointer image, the index represented by the index image can be read. In addition, since the index represented by the index image can be read by the auxiliary image, it is possible to adopt a configuration in which the pointer image is not divided by the index image, which makes it possible to continuously display the pointer image. .

The display device according to claim 19 is characterized in that the auxiliary image is a shadow image representing a shadow of the index image. In this configuration, since the discriminability of the index image with respect to the pointer image is enhanced by the shadow image, a stereoscopic effect can be given to the index image in addition to the effects described above. Since the impression of the index image can be enhanced by this stereoscopic effect, the identification of the index image can be further enhanced. Therefore, the index represented by the index image can be read more easily.

The display device according to claim 20 is characterized in that the auxiliary image is a contour image representing at least a part of a contour of the index image. In this configuration, since the discriminability of the index image with respect to the pointer image is enhanced by the contour image, in addition to the above-described effects, the contour of the index image can be recognized more reliably. Thereby, the discriminability of the index image can be further improved. Therefore, the index represented by the index image can be read more easily.

The display device according to a twenty-first aspect is characterized in that the auxiliary image is displayed with a lightness at a substantially center between the lightness of the background of both the pointer image and the index image and the lightness of the pointer image. As a result, the auxiliary image can be identified in both the pointer image and the background, so that the auxiliary image can be formed in both. Therefore, it is possible to form an auxiliary image so as to further improve the discriminability of the index image, and the index represented by the index image can be read more easily.

According to a twenty-second aspect of the present invention, the auxiliary image is displayed with a hue substantially in the center between the hue of the background and the hue of the pointer image. As a result, the auxiliary image can be identified in both the pointer image and the background, so that the auxiliary image can be formed in both. Therefore, it is possible to form an auxiliary image so as to further improve the discriminability of the index image, and the index represented by the index image can be read more easily.

The display device according to claim 23 , wherein a display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. of varying at least one, and control means, by displaying the allowed by the index image moves an index image to the outside from the distal end of the longitudinal to the pointer image pointer image, an index display mode And wherein the changing.

  In this configuration, since the index image is moved and displayed outside the tip of the pointer image during overlay display, the index represented by the index image can be read without being obstructed by the pointer image, and the index image It is possible to continuously show the pointer images without being divided by.

The display device according to claim 24 , wherein a display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. And the control means changes the pointer form by displaying the pointer image in a shape that bypasses the index image.

  In this configuration, the pointer image is displayed in a shape that bypasses the index image when superimposed, so that the index represented by the index image can be read without being obstructed by the pointer image, and the pointer image is continuously displayed. It becomes possible to show to.

The display device according to claim 25 , wherein a display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. of varying at least one, and, the control means, when the overlay display, by displaying in lightness different from brightness of the whole guidance image of the index image overlapping with the pointer image And wherein the changing the index display mode.

  In this configuration, since the entire index image that overlaps the pointer image is displayed with a lightness different from the brightness of the pointer image when superimposed, the index represented by the index image can be read. In addition, since the index image represented by the index image can be read by displaying the entire index image overlapping the pointer image with a lightness different from the brightness of the pointer image, the index image represented by the index image can be read. Since it is not necessary to adopt a configuration for dividing the pointer image, the pointer image can be continuously displayed.

The display device according to claim 26 , wherein a display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer, and the pointer image and the index image are displayed in an overlapping manner. Control means for displaying an instrument image on the display panel so that the superimposed display is possible, and the control means has a pointer form of the pointer image so that the index represented by the index image can be read at the time of the superimposed display. And at least one of the index display mode of the index image, and the control means includes a pointer form and an index display mode so that the pointer image can be continuously displayed at a position where the pointer image and the index image overlap. of varying at least one, and, the control means, when the overlay display, by displaying hue different from the hue of the entire guidance image of the index image overlapping with the pointer image And wherein the changing the index display mode.

  In this configuration, the entire index image that overlaps the pointer image is displayed in a hue different from the hue of the pointer image at the time of overlay display, so that the index represented by the index image can be read. In addition, since the index image represented by the index image can be read by displaying the entire index image overlapping the pointer image with a hue different from the hue of the pointer image, the index image represented by the index image can be read. Since it is not necessary to adopt a configuration for dividing the pointer image, this makes it possible to continuously show the pointer image.

According to a twenty-seventh aspect of the present invention, the control unit displays the entire index image overlapping the pointer image with a hue different from the hue of the pointer image. In this structure, since the structure described in Claim 25 is combined, the above-mentioned effect can be improved more.

In the display device according to claim 28 , the control means may include a background peripheral portion of the entire surrounding in the background of both the pointer image and the index image, and the brightness of the background, the brightness of the pointer image, and the overall brightness. Both are displayed with different brightness. In this configuration, since the superimposed display is emphasized by the background peripheral portion, the index represented by the index image can be read more easily.

In the display device according to claim 29 , the control means may include any one of the background hue, the hue of the pointer image, and the overall hue in the background surrounding both the background of the pointer image and the index image. Both are displayed in different hues. In this configuration, since the superimposed display is emphasized by the background peripheral portion, the index represented by the index image can be read more easily.

The display device according to claim 30 is characterized in that the control means displays the background peripheral portion in a hue different from any of the hue of the background, the hue of the pointer image, and the entire hue. In this structure, since the structure described in Claim 28 is combined, the said effect can be heightened more.

  Hereinafter, a display device according to the present invention will be described with reference to the drawings.

(First embodiment)
A display device 1 shown in FIG. 1 is used, for example, as an in-vehicle display device, and includes a liquid crystal panel 2 that is a display panel, a light emitting diode 3, a CPU (Central Processing Unit) 4 that is a control means, and a drawing IC. (Integrated circuit) 5, ROM (read only memory) 41, and image memory 51 capable of rewriting stored data.

  The liquid crystal panel 2 in which a plurality of pixels 21 are formed in a matrix is an active matrix type liquid crystal panel of a type driven by a thin film transistor (TFT) (not shown). Each pixel 21 includes a red pixel, a green pixel, and a blue pixel, and controls the voltage applied to the red pixel, the green pixel, and the blue pixel in each pixel 21 by applying a voltage to the gate of the TFT. Thus, in each pixel 21, the light transmittance of each of the red pixel, the green pixel, and the blue pixel is controlled. The light emitting diode 3 that emits white light is a light source that is disposed behind the liquid crystal panel 2 to illuminate the liquid crystal panel 2 and is turned on by the CPU 4. The light emitting diode 3 transmits and illuminates each pixel 21 whose light transmittance of the red pixel, the green pixel, and the blue pixel is controlled, thereby causing the liquid crystal panel 2 to perform full color display.

  The CPU 4 captures a signal from the rotation sensor 61 or the like that detects the engine rotational speed of the automobile, which is a predetermined measurement amount, inputs the signal to the drawing IC 5, and displays an indicator for notifying the operating state of the equipment provided in the automobile or the automobile A signal from the indicator / warning sensor 62 and the like relating to the warning for warning the abnormality is taken and input to the drawing IC 5. The ROM 41 stores image data such as a rotation meter image 7 and a speed meter image 8 and an indicator / warning image 9 which are instrument images shown in FIG. In response to an instruction from the CPU 4, image data is transferred from the ROM 41 to the image memory 51, and the drawing IC 5 displays red in each pixel 21 based on the image data in the image memory 51 and the input predetermined measurement amount and indicator / warning information. The voltage applied to the pixel, the green pixel, and the blue pixel is controlled, and each display state of the plurality of pixels 21 is controlled.

  Thereby, as shown in FIG. 2, the rotation meter image 7, the speed meter image 8, the indicator / warning image 9, and the like are displayed on the liquid crystal panel 2. The tachometer image 7 is an image representing a tachometer indicating the engine speed of the vehicle, and a pointer image 71 representing a pointer that rotates in accordance with increase / decrease in the engine speed, a scale image 72 representing a scale, and a pointer And an index image 73 representing a number as an index. Further, when the pointer image 71 points to the index image 73, the pointer image 71 and the index image 73 are displayed in an overlapping manner.

  The speed meter image 8 is an image representing a speed meter that displays the speed of the vehicle, which is a predetermined measurement amount, and, like the rotation meter image 7, a pointer image representing a pointer that rotates according to increase / decrease of the speed of the vehicle. 81, a scale image 82 representing a scale, and an index image 83 representing a number which is an index pointed by a pointer. Further, when the pointer image 81 points to the index image 83, the pointer image 81 and the index image 83 are displayed in an overlapping manner. The indicator / warning image 9 is an image representing an indicator and a warning.

  Hereinafter, the superimposing display of the pointer images 71 and 81 and the index images 73 and 83, which is a feature of the present invention, will be described in the rotation meter image 7 with reference to FIGS.

  In FIG. 3, the pointer form of the pointer image 71 and the index image 73 are readable so that the index (the number “4” in FIG. 3) represented by the index image 73 can be read when the pointer image 71 and the index image 73 are superimposed and displayed. At least one of the index display modes is changed. Further, at least one of the pointer form and the index display mode is provided so that the pointer image 71 can be continuously displayed in the longitudinal direction (vertical direction in FIG. 3) at the position where the pointer image 71 and the index image 73 overlap. Change.

  Specifically, the index image 73 is displayed so as to be superimposed on the pointer image 71 during the overlay display, and the peripheral portion 71a around the overlapping portion 73a in the pointer image 71 is displayed with the brightness of the pointer image 71, By displaying the brightness of the index image 73 with a brightness different from both the brightness of the background 76 of the pointer image 71 and the index image 73, the pointer form is changed.

  More specifically, the index image 73 is displayed on the overlapping portion 73a where the pointer image 71 and the index image 73 overlap, and the pointer image 71 and the index image 73 are displayed around the peripheral portion 71a around the overlapping portion 73a. The brightness between the background 76 and the pointer image 71 is displayed. For example, when the pointer image 71 and the index image 73 are both displayed in white and the background 76 is black, the peripheral portion 71a is displayed in gray, which is the brightness at the approximate center between the black background 76 and the white pointer image 71. Let

  Thus, in order to display the white index image 73 with the gray peripheral portion 71a being the brightness of the center between the black background 76 and the white pointer image 71 as a background, the white index image 73 is used as the background. Compared to the case where the image 73 is displayed, the index image 73 overlapping the pointer image 71 can be easily recognized. Therefore, the index number “4” represented by the index image 73 can be read.

  Further, since the gray peripheral portion 71a, which is the brightness of the center between the black background 76 and the white pointer image 71, is displayed, the pointer image 71 can be displayed without being divided at the peripheral portion 71a. That is, for this reason, the peripheral portion 71 a can give a sense of connection to the pointer image 71, and the pointer image 71 can be continuously displayed at a position overlapping the index image 73. Accordingly, by displaying the peripheral portion 71a in black of the background 76, the pointer image 71 overlapping the index image 73 can be easily recognized as compared with the case where the peripheral portion 71a does not display the pointer image 71. As a result, the index image 73 overlapping the pointer image 71 and the pointer image 71 overlapping the index image 73 can be easily recognized.

  Therefore, it is easy to recognize which index image 73 is pointed by the pointer image 71, and the index number “4” represented by the index image 73 can be read at this overlapping position. Therefore, the index number “4” represented by the index image 73 that is easily recognized by the pointer image 71 can be read.

  Here, when the peripheral portion 71a is displayed with brightness close to the black background 76 (that is, with a color close to black), the white index image 73 overlapping the white pointer image 71 can be easily recognized. The feeling of connection of the white pointer image 71 is reduced at the peripheral portion 71 a of a color close to black, and it becomes difficult to recognize the pointer image 71 overlapping the index image 73. On the other hand, when the peripheral portion 71a is displayed with lightness close to that of the white pointer image 71 (that is, in a color close to white), it is difficult to recognize the white index image 73 overlapping the white pointer image 71. In addition, the connection feeling of the white pointer image 71 is improved at the peripheral portion 71 a of a color close to white, and the white pointer image 71 overlapping the index image 73 is easily recognized.

  Thus, making it easy to recognize the indicator image 73 that overlaps the pointer image 71 and making it easier to recognize the indicator image 71 that overlaps the indicator image 73 are contradictory. On the other hand, since the peripheral portion 71a is displayed in gray, which is the lightness at the approximate center between the black background 76 and the white pointer image 71, both can be more appropriately compatible.

  When the pointer image 71 does not point to the index image 73, the pointer image 71 and the index image 73 are not displayed in an overlapping manner, so that the peripheral portion 71a and the overlapping portion 73a are not formed as shown in FIG.

  Further, since the same applies to the speedometer image 8, the description of displaying the pointer image 81 and the index image 83 in an overlapping manner is omitted.

  As described above, the display device 1 according to the present embodiment is a liquid crystal display panel that can display the rotation meter image 7 that is an instrument image having the pointer image 71 that forms the pointer and the index image 73 that forms the index that the pointer points to. The CPU 2 includes a CPU 4 and a drawing IC 5 that are control means for displaying the rotation meter image 7 on the liquid crystal panel 2 so that the panel 2, the pointer image 71 and the index image 73 can be displayed in an overlapping manner. And the drawing IC 5 change at least one of the pointer form of the pointer image 71 and the index display mode of the index image 73 so that the index represented by the index image 73 can be read during the overlay display. Thereby, it is possible to read the index represented by the index image in the superimposed display.

  In the example of the present embodiment, the peripheral portion 71a is displayed with uniform brightness, but the present invention is not limited to this. In the longitudinal direction of the pointer image 71 (vertical direction in FIG. 3), the brightness of the peripheral portion 71a is from the brightness of the pointer image 71 to the brightness of the background 76 from both ends 71b and 71c of the peripheral portion 71a toward the center 73c of the overlapping portion 73a. Gradually changing gradation is displayed on the peripheral portion 71a. Specifically, in the gradation of the peripheral portion 71a, the lightness of the peripheral portion 71a is gradually changed from the lightness of the white pointer image 71 to the lightness of the black background 76 from the upper end 71b toward the center 73c according to the arrow G1. According to the arrow G2, the brightness of the peripheral portion 71a is gradually changed from the brightness of the white pointer image 71 to the brightness of the black background 76 from the lower end 71c toward the center 73c.

  As a result, the connection feeling of the pointer image 71 is improved on both ends 71b and 71c side of the peripheral portion 71a, and the pointer image 71 overlapping with the index image 73 can be easily recognized, and the pointer pointer 71 on the center 73c side of the overlapping portion 73a. The index image 73 overlapping the image 71 can be easily recognized. Therefore, the above-described effects can be obtained, and the design can be enhanced by the gradation effect of the peripheral portion 71a.

  Further, in the longitudinal direction of the pointer image 71 (vertical direction in FIG. 3), the peripheral portion from the brightness of the pointer image 71 to the brightness of the background 76 from one upper end 71b at both ends of the peripheral portion 71a to the other lower end 71c. It is also possible to display a gradation in which the brightness of 71a gradually changes on the peripheral portion 71. Specifically, in the gradation of the peripheral portion 71a, the lightness of the peripheral portion 71a is gradually changed from the lightness of the white pointer image 71 to the lightness of the black background 76 from the upper end 71b to the lower end 71c in accordance with the arrow G3. Therefore, the brightness is rapidly changed from white to black at the lower end 71c.

  Thereby, the connection feeling of the pointer image 71 is improved on the upper end 71b side, and the pointer image 71 overlapping the index image 73 can be easily recognized. Further, since the lower end 71c side of the peripheral portion 71a is close to the brightness of the background 76, it is possible to easily recognize the index image 73 that overlaps the pointer image 71 on the lower end 71c side. As a result, the above-described effects can be obtained, and design properties can be enhanced by the gradation effect of the peripheral portion 71a.

  It is also possible to display a shadow portion 73 b representing the shadow of the index image 73 indicated by the pointer image 71 adjacent to the index image 73. Thereby, it is possible to more easily recognize the pointer image that overlaps the index image when the pointer image indicates.

  It is also possible to set the brightness difference between the index image 73 indicated by the pointer image 71 and the background 76 to be higher than the brightness difference between the other index images 73 and the background 76. As a result, the pointer image 71 that overlaps the index image 73 as indicated by the pointer image 71 can be more easily recognized.

  In the above example, the pointer image 71, the index image 73, and the background 76 are displayed in black and white without hue and saturation, but the present invention is not limited to this. Since the liquid crystal panel 2 can perform full color display, the pointer image 71, the index image 73, the background 76, and the like can be displayed by combining brightness, hue, and saturation. In this case, the above-described effect can also be obtained by displaying the peripheral portion 71 a in a hue between the background 76 of both the pointer image 71 and the index image 73 and the pointer image 71.

  For example, in FIG. 3, when the pointer image 71 and the index image 73 are displayed in red and the background 76 is displayed in purple, the peripheral portion 71 a is displayed in magenta, which is the central hue between the background 76 and the pointer image 71. To do.

  As a result, the red index image 73 is displayed with the red pointer image 71 as the background in order to display the red index image 73 with the red purple peripheral portion 71a being the central hue between the purple background 76 and the red pointer image 71 as the background. Compared with the case where the index image 73 is displayed, the index image 73 overlapping the pointer image 71 can be easily recognized.

  Further, since the peripheral portion 71a of red purple, which is the central hue between the purple background 76 and the red pointer image 71, is displayed, the pointer image 71 can be displayed without being divided at the peripheral portion 71a. That is, for this reason, it is possible to give a sense of connection to the pointer image 71 at the peripheral portion 71a. Accordingly, by displaying the peripheral portion 71a in purple of the background 76, it is possible to easily recognize the pointer image 71 that overlaps the index image 73 as compared with the case where the pointer image 71 is not displayed on the peripheral portion 71a. As a result, the index image 73 overlapping the pointer image 71 and the pointer image 71 overlapping the index image 73 can be easily recognized.

(Second Embodiment)
In the second embodiment, in FIG. 5, when the pointer image 71 and the index image 73 are superimposed and displayed, the shadow image 74 that is an auxiliary image for reading the number “4” of the index represented by the index image 73 is displayed as the index image. The indicator display mode is changed by displaying it around. Specifically, when the pointer image 71 and the index image 73 are displayed in an overlapping manner, a shadow image 74 that enhances the discriminability of the index image 73 with respect to the pointer image 71 is displayed around the index image 73. The shadow image 74 is an image representing the shadow of the index image, and the shadow image 74 is displayed with the brightness of the center of the brightness of the background 76 of both the pointer image 71 and the index image 73 and the brightness of the pointer image 71.

  For example, when the pointer image 71 and the index image 73 are both displayed in white and the background 76 is black, the shadow image 74 is displayed in gray, which is the brightness at the approximate center between the black background 76 and the white pointer image 71. Let

  By displaying a shadow image 74 that enhances the identification of the index image 73 with respect to the pointer image 71 around the index image 73, the index image 73 can be identified when the pointer image 71 and the index image 73 are displayed in an overlapping manner. Can be. Therefore, the index number “4” represented by the index image 73 can be read.

  In contrast, in the comparative example in which the shadow image 74 is not displayed, as shown in FIG. 6, it is difficult to identify the index image 73 with respect to the pointer image 71, so the index number “4” represented by the index image 73 is read. hard.

  Further, in the embodiment according to the present invention shown in FIG. 5, in order to enhance the discriminability of the index image 73 with respect to the pointer image 71 by the shadow image 74 representing the shadow of the index image 73, in addition to the above-described effects, A feeling can be given. Because of this stereoscopic effect, the impression of the index image 73 can be enhanced, so that the identification of the index image 73 can be further enhanced. Therefore, the index number “4” represented by the index image 73 can be more easily read.

  In addition, since the shadow image 74 displayed with the lightness of approximately the center between the lightness of the pointer image 71 and the lightness of the background 76 can be identified in both the pointer image 71 and the background 76, the shadow image 74 is formed in both of them. It becomes possible. Therefore, it is possible to form the shadow image 74 so as to further improve the discriminability of the index image 73. As a result, the discriminability of the index image 73 can be further increased. Therefore, the index number “4” represented by the index image 73 can be more easily read.

  In addition, since the index number “4” represented by the index image 73 can be read by the auxiliary image 74, it is possible to adopt a configuration in which the pointer image is not divided by the index image 73. Specifically, during the overlay display, both the pointer image 71 and the index image 73 are displayed in white, which makes it possible to show the pointer image 71 continuously.

  Therefore, it is easy to recognize which index image 73 is pointed by the pointer image 71, and the index number “4” represented by the index image 73 can be read at this overlapping position. Therefore, the index number “4” represented by the index image 73 that is easily recognized by the pointer image 71 can be read.

  When the pointer image 71 does not indicate the index image 73, the shadow image 74 is not displayed because the pointer image 71 and the index image 73 are not displayed in an overlapping manner.

  Further, since the same applies to the speedometer image 8, a description of the case where the pointer image 81 and the index image 83 are displayed in an overlapping manner is omitted.

  In the example of the present embodiment, the shadow image 74 is displayed in a fine shape. For example, as shown in FIG. 7, a schematic shadow image 74 a having an oval shape is replaced with an index image 73 instead of the shadow image 74. It is possible to display around. In order to show the correspondence between the shadow image 74a and the shadow image 74, the shadow image 74 is shown by a one-dot difference line in FIG. The above-mentioned effect can be obtained also by the schematic shadow image 74a.

  In the example of the present embodiment, the shadow images 74 and 74a are displayed around the index image 73. However, as shown in FIG. 8, a contour image 75 that is an auxiliary image is replaced with the index image 73 instead of the shadow images 74 and 74a. It is possible to display around. The contour image 75 is an image representing a part of the contour of the index image 73, and the contour image 75 is used to enhance the identifiability of the index image 73 with respect to the pointer image 71. Can do. Thereby, the discriminability of an index image can be improved and the above-mentioned effect can be acquired. Further, instead of the contour image 75, as shown in FIG. 9, a contour image 75a representing the entire contour of the index image 73 may be used.

  In the example of the present embodiment, the auxiliary images 74, 74 a, 75, and 75 a are displayed with the brightness of the background 76 and the brightness of the center 76 with the brightness of the pointer image 71, but are displayed with the same brightness as the brightness of the background 76. It is possible. For example, as shown in FIG. 10, the shadow image 74 can be displayed with the same brightness as that of the background 76. In FIG. 10, since the shadow image 74 cannot be identified with respect to the background 76, the boundary line between the shadow image 74 and the background 76 is indicated by a one-point difference line for convenience. This also makes it possible to identify the index image 73 with respect to the pointer image 71. Therefore, the index number “4” represented by the index image 73 can be read.

  In the example of this embodiment, the number “4” of the index represented by the index image 73 can be read by the shadow images 74 and 74a and the contour images 75 and 75a, but instead of these, as shown in FIG. An auxiliary index image 741 that is an image can be displayed. The auxiliary index image 741 representing the index number “4” represented by the index image 73 is displayed at a position shifted from the pointer image 73 in the direction in which the pointer image 71 moves (left and right in FIG. 11). For example, when the pointer image 71 moves to the right side in FIG. 11, the auxiliary index image 741 is shifted to the right side, and when the pointer image 71 moves to the left side in FIG. 11, the auxiliary index image 741 is shifted to the left side. . On the contrary, when the pointer image 71 moves to the right side in FIG. 11, the auxiliary index image 741 is shifted to the left side, and when the pointer image 71 moves to the left side in FIG. 11, the auxiliary index image 741 to the right side. It is also possible to shift them.

  In this example, since the auxiliary index image 741 represents the index at a position shifted from the pointer image 71 in the direction in which the pointer image 71 moves, the index “4” represented by the index image 71 can be read. In addition, since the index “4” represented by the index image 73 can be read by the auxiliary index image 741, it is possible to adopt a configuration in which the pointer image 71 is not divided by the index image 73. Specifically, as shown in FIG. 11, it is possible to adopt a configuration in which the pointer image 71 is displayed so as to overlap the index image 73. As a result, the pointer image 71 can be continuously displayed.

  In the example of the present embodiment, the pointer image 71, the index image 73, the background 76, and the auxiliary images 74, 74a, and 75 are displayed in black and white without hue and saturation, but the present invention is not limited thereto. Since the liquid crystal panel 2 can be displayed in full color, the pointer image 71, the index image 73, the background 76, and the auxiliary images 74, 74a, and 75 can be displayed in combination with brightness, hue, and saturation. In this case, the above-described effects can also be obtained by displaying the auxiliary images 74, 74 a, and 75 with a hue approximately in the center between the hue of the pointer image 71 and the hue of the background 76.

  For example, in FIG. 5, when the pointer image 71 and the index image 73 are displayed in red and the background 76 is displayed in purple, the shaded image is red purple, which is the central hue between the hue of the background 76 and the hue of the pointer image 71. 74 is displayed.

  Thereby, since the shadow image 74 can be identified in both the pointer image 71 and the background 76, the shadow image 74 can be formed in both of them. Therefore, it is possible to form the shadow image 74 so as to further improve the distinguishability of the index image 73. As a result, the distinguishability of the index image 73 can be enhanced. Therefore, the index number “4” represented by the index image 73 can be read.

(Third embodiment)
In the third embodiment, in FIG. 12, when the pointer image 71 and the index image 73 are superimposed and displayed, the overlapping portion 73 a of the index image 73 and the pointer image 71 is replaced with the brightness of the pointer image 71 and the brightness of the index image 73. The index display mode is changed by displaying with brightness different from any of the above. For example, when the pointer image 71 and the index image 73 are both displayed in white and the background 76 is black, the overlapping portion 73a has a lightness approximately at the center between the black background 76 and the white pointer image 71 (index image 73). Is displayed in gray.

  Thereby, for example, the overlapping portion 73a is displayed in a different gray from the pointer image 71 and the index image 73 as compared with the case where the overlapping portion 73a is displayed in the same white color as the pointer image 71 and the index image 73. Therefore, the index number “4” is easy to read. In addition, since it is possible to give the connection feeling of the pointer image 71 by the overlapping portion 73a, the pointer image 71 can be continuously displayed.

  In the example of the present embodiment, the pointer image 71, the index image 73, the overlapping portion 73a, and the background 76 are displayed in black and white without hue and saturation, but can be displayed including these. .

(Fourth embodiment)
In the fourth embodiment, when the pointer image 71 and the index image 73 are superimposed and displayed in FIG. 13, the index image 73 is displayed outside the tip of the pointer image 71 in the longitudinal direction of the pointer image 71 indicated by the arrow M. By moving from 731 and displaying the index image 73, the index display mode is changed. On the other hand, when the pointer image 71 does not indicate the index image 73, that is, when the pointer image 71 and the index image 73 are not displayed in an overlapping manner, the index image 73 is displayed in the direction indicated by the arrow M as shown in FIG. The index image 73 is displayed by moving from 731. Therefore, when the pointer image 71 and the index image 73 are not overlapped and displayed, the index image 73 is displayed in FIG. 14, and when the pointer image 71 and the index image 73 are superimposed and displayed, the index image 73 in FIG. The index image 731 is displayed by moving from 73.

  In the present embodiment, the index image 73 is moved outside the tip of the pointer image 71 and displayed during the overlay display. Therefore, the index number “4” represented by the index image 73 without being obstructed by the pointer image 71 is displayed. Can be read, and the pointer image 71 can be continuously displayed without being divided by the index image 73.

(Fifth embodiment)
In the fifth embodiment, in FIG. 15, when the pointer image 71 and the index image 73 are superimposed and displayed, the pointer form is changed by displaying the pointer image 711 in a shape that bypasses the index image 73. The shape that bypasses the index image 73 is not limited to the bypass shape of the pointer image 711.

  In the present embodiment, the pointer image 711 is displayed in a shape that bypasses the index image 73 during overlay display, and therefore the index number “4” represented by the index image 711 is read without being blocked by the pointer image 73. The pointer image 711 can be displayed continuously.

(Sixth embodiment)
In the sixth embodiment, when the pointer image 71 and the index image 73 are superimposed and displayed in FIG. 16, the entire index image 73 overlapping the pointer image 71 is displayed with a lightness different from the lightness of the pointer image. The index display mode is changed. For example, when the pointer image 71 and the index image 73 are not overlapped and displayed, when the pointer image 71 and the index image 73 are both displayed in white and the background 76 is black, the index image 73 overlapping the pointer image 71 is displayed. The whole is displayed in a gray color different from the white color of the pointer image.

  In the present embodiment, the entire index image 73 that overlaps the pointer image 71 is displayed in a gray color different from the white color of the pointer image during overlay display, so that the index represented by the index image 73 can be read. In addition, since the index image 73 that overlaps the pointer image 71 is displayed in gray different from the white color of the pointer image 71, the index number “4” represented by the index image 73 can be read. It is not necessary to adopt a configuration in which the pointer image 71 is divided in order to make it possible to read the index represented by. For this reason, it becomes possible to show the pointer image 71 continuously.

  In addition, as shown in FIG. 17, in the background 76, the background peripheral portion 76 a around the entire index image 73 overlapping the pointer image 71 includes the black background 76, the white color of the pointer image 71, and the pointer image 71. It is also possible to display in a gray different from any of the entire gray of the index image 73 that overlaps. In this modification, since the superimposed display is emphasized by the background peripheral portion 76a, the index “4” represented by the index image 73 can be read more easily.

  It is also possible to form the background peripheral portion 76a as a gradation in which the brightness of the peripheral portion 71a gradually changes from the brightness of the index image 73 to the brightness of the background 76 from the index image 73 to the background 76. . Thereby, since the superimposed display is more emphasized, the index “4” represented by the index image 73 can be more easily read.

  In the example of the present embodiment, the pointer image 71, the index image 73, the overlapping portion 73a, and the background 76 are displayed in black and white without hue and saturation, but can be displayed including these. .

(Seventh embodiment)
In the seventh embodiment, in FIG. 18, when the pointer image 71 and the index image 73 are superimposed and displayed, the index image 73 is displayed on the overlapping portion 73 a of the pointer image 71 and the index image 73. The pointer form is changed by displaying the peripheral portion 71a around the portion 73a with the same brightness as that of the background 76 and the same hue as that of the background 76. For example, when the pointer image 71 and the index image 73 are not overlapped and displayed, when the pointer image 71 and the index image 73 are both displayed in white and the background 76 is black, the overlapping portion 73a is displayed in white and the peripheral portion is displayed. 71a is the same black color as the background 76.

  In the present embodiment, the index image 73 is displayed on the overlapping portion 73a, and the peripheral portion 71a around the overlapping portion 73a in the pointer image 71 is the same black color as the background 76. The numeral “4” of the index represented by 73 can be read.

  In the example of the present embodiment, the pointer image 71, the index image 73, the overlapping portion 73a, and the background 76 are displayed in black and white without hue and saturation, but can be displayed including these. .

  In the above-described embodiment, the pointer image 71 is rotated according to the increase / decrease in the engine speed, but the present invention is not limited thereto. As shown in FIG. 19, in the rotation meter image 70, the pointer image 710, the scale image 720, and the index are moved so that the pointer image 710 moves in the horizontal direction (left-right direction in FIG. 5) as the engine speed increases or decreases. It is also possible to display an image 730 or the like. Also in this modification, the above-described effects can be obtained by displaying the peripheral portion 710a as described above. It is also possible to display the instrument image so that the pointer image moves in the vertical direction (vertical direction in FIG. 19).

  As shown in FIG. 4, when the pointer image 71 and the index image 73 are not overlapped and displayed, at least the pointer form of the pointer image and the index display mode of the index image are readable so that the index represented by the index image can be read. The configuration in which one is changed, that is, the configuration of the present invention is not adopted.

  In the above-described embodiment, the present invention is applied to the rotation meter images 7 and 70 in which the pointer images 71, 710, and 711 move rapidly. However, when the pointer image moves rapidly, the pointer image and the index image are superimposed. Since the display duration is shortened, the feature of the present invention is exhibited only in this short duration. Therefore, the feature of the present invention is exhibited when the duration of this overlay display is relatively long. For example, when displaying zero speed in a speedometer image, or performing auto speed control on a highway or the like. The features of the present invention are effectively exhibited when displaying the speed of a constant speed in cruise control, or when displaying a clock image having at least a pointer and an index on a display panel such as a liquid crystal panel.

  The liquid crystal panel 2 can be a monochrome liquid crystal panel that does not perform full color display.

  Further, instead of the liquid crystal panel 2 which is a light receiving type (non-light emitting type) display panel, an EL (electroluminescence) display panel which is a light emitting type display panel may be used.

  Further, the present invention is not limited to the above-described examples, and combinations thereof and other various modifications are conceivable.

FIG. 1 is a circuit configuration diagram of a combination meter 1 which is a display device according to the present invention. FIG. 2 is a front view of the liquid crystal panel 2 shown in FIG. FIG. 3 is an enlarged front view of part III in FIG. 2 showing the display of the combination meter 1 which is a display device according to the first embodiment of the present invention. FIG. 4 is an enlarged front view when the rotation position of the pointer image 71 is different from that in FIG. 3. FIG. 5 is an enlarged front view of a portion V in FIG. 2 showing a display of the combination meter 1 which is a display device according to the second embodiment of the present invention. FIG. 6 is an enlarged front view showing a comparative example of FIG. FIG. 7 is an enlarged front view showing a first modification of FIG. FIG. 8 is an enlarged front view showing a second modification of FIG. FIG. 9 is an enlarged front view showing a third modification of FIG. FIG. 10 is an enlarged front view showing a fourth modification of FIG. FIG. 11 is an enlarged front view showing a fifth modification of FIG. FIG. 12 is an enlarged front view of a portion V in FIG. 2 showing a display of the combination meter 1 which is a display device according to the third embodiment of the present invention. FIG. 13 is an enlarged front view of a portion V in FIG. 2 showing a display of the combination meter 1 which is a display device according to the fourth embodiment of the present invention. FIG. 14 is an enlarged front view when the rotation position of the pointer image 71 is different from that in FIG. 14. FIG. 15 is an enlarged front view of a portion V in FIG. 2 showing a display of the combination meter 1 which is a display device according to the fifth embodiment of the present invention. FIG. 16 is an enlarged front view of a portion V in FIG. 2 showing a display of the combination meter 1 which is a display device according to the sixth embodiment of the present invention. FIG. 17 is an enlarged front view showing a modification of FIG. FIG. 18 is an enlarged front view of a portion V in FIG. 2 showing a display of the combination meter 1 which is a display device according to the seventh embodiment of the present invention. FIG. 19 is an enlarged front view showing a modification of the rotation meter image 7 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus, 2 Liquid crystal panel (display panel), 21 pixels, 3 Light emitting diode 4 CPU (control means), 41 ROM, 5 Drawing IC (control means), 51 Image memory 61 Rotation sensor, 62 Indicator / warning sensor 7, 70 rotation meter image (instrument image), 71, 710, 711 pointer image 71a, 710a peripheral portion, 71b upper end, 71c lower end, 72, 720 scale image 73, 730, 731 index image, 73a overlapped portion, 73b shaded portion, 73c Center 74, 74a, 740 Shadow image (auxiliary image), 741 Auxiliary index image (auxiliary image)
75, 75a Contour image (auxiliary image), 76 background, 76a background peripheral portion 8 Speedometer image (instrument image), 81 Pointer image, 82 Scale image, 83 Index image 9 Indicator / warning image

Claims (30)

A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display ,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In addition, the control unit displays the index image so as to overlap the pointer image at the time of the overlay display, and a peripheral portion around the overlapping portion in the pointer image is displayed on the pointer image. The display device , wherein the pointer form is changed by displaying the brightness, the brightness of the index image, and the brightness different from the background brightness of both the pointer image and the index image . A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap ,
In addition, the control unit displays the index image so as to overlap the pointer image at the time of the overlay display, and a peripheral portion around the overlapping portion in the pointer image is displayed on the pointer image. The display device , wherein the pointer form is changed by displaying the hue, the hue of the index image, and a hue different from the background hue of both the pointer image and the index image . The display device according to claim 1 , wherein the control unit displays the peripheral portion with a hue different from any of a hue of the pointer image, a hue of the index image, and a hue of the background. . The display device according to claim 1 , wherein the control unit displays the peripheral portion with a lightness between the lightness of the background and the lightness of the pointer image . The display device according to claim 2 , wherein the control unit displays the peripheral portion with a hue between the hue of the background and the hue of the pointer image . The display device according to claim 4 , wherein the control unit displays the peripheral portion with a hue between the hue of the background and the hue of the pointer image . 7. The display device according to claim 4 , wherein the control unit displays the peripheral portion with a lightness substantially in the center between the lightness of the background and the lightness of the pointer image . The display device according to claim 5 , wherein the control unit displays the peripheral portion with a hue approximately in the center between the hue of the background and the hue of the pointer image. The display device according to claim 8 , wherein the control unit displays the peripheral portion with a lightness substantially in the center between the lightness of the background and the lightness of the pointer image. In the longitudinal direction of the pointer image , the control means gradually changes the brightness of the peripheral portion from the brightness of the pointer image to the brightness of the background from both ends of the peripheral portion toward the center of the overlapping portion. The display device according to claim 1 , wherein gradation is displayed on the peripheral portion . The control means performs gradation in which the brightness of the peripheral portion gradually changes from the brightness of the pointer image to the brightness of the background from one end to the other end of the peripheral portion in the longitudinal direction of the pointer image. The display device according to claim 1 , wherein the display device is displayed on the peripheral portion . The brightness difference between the index image and the background pointing the pointer image, to any one of claims 1 to 11, characterized in that set higher than brightness difference between the background and the other index image The display device described. The control means, the shaded area representing the shading of the index image in which the pointer image is pointing, of the preceding claims, characterized in that display by adjacent to the index image in which the pointer image is pointing The display device according to any one of the above. A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In the superimposed display, the control means displays the overlapping portion of the index image and the pointer image with a brightness different from both the brightness of the pointer image before the overlap and the brightness of the index image. In the display device that changes the indicator display mode by
When the index image and the pointer image overlap each other, the display device displays not only the overlapping portion but the entire index image with the different brightness . A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In the superimposed display, the control means displays the overlapping portion of the index image and the pointer image in a hue different from both the hue of the pointer image before the overlap and the hue of the index image. In the display device that changes the indicator display mode by
When the index image and the pointer image overlap each other, the display device displays not only the overlapping portion but the entire index image in the different hue . The display device according to claim 14 , wherein the control unit displays the overlapping portion with a hue different from both a hue of the pointer image and a hue of the index image . A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
The display device, wherein the control means changes the indicator display mode by displaying an auxiliary image for reading the indicator represented by the indicator image around the indicator image . The display device according to claim 17 , wherein the auxiliary image is displayed at a position shifted from the pointer image in a moving direction of the pointer image to represent the index . The display device according to claim 17 , wherein the auxiliary image is a shadow image representing a shadow of the index image . The display device according to claim 17 , wherein the auxiliary image is a contour image representing at least a part of a contour of the index image . The said control means displays the said auxiliary | assistant image by the brightness of the approximate center of the brightness of the background of both the said pointer | guide image and the said index image, and the brightness of the said pointer | guide image. A display device according to claim 1. The display device according to any one of claims 17 to 21, wherein the control unit displays the auxiliary image with a hue approximately in the center between the hue of the background and the hue of the pointer image . A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In addition, the control means changes the indicator display mode by moving the indicator image to the outside of the pointer image in the longitudinal direction of the pointer image and displaying the indicator image. Display device. A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In addition, the control unit changes the pointer form by displaying the pointer image in a shape that bypasses the index image . A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In addition, the control means changes the index display mode by displaying the entire index image that overlaps the pointer image at a brightness different from the brightness of the pointer image during the overlay display. A display device. A display panel capable of displaying an instrument image having a pointer image forming a pointer and an index image forming an index indicated by the pointer;
Control means for displaying the instrument image on the display panel so that superimposed display for displaying the pointer image and the index image in an overlapping manner is possible,
The control unit changes at least one of a pointer form of the pointer image and an index display mode of the index image so that the index represented by the index image can be read during the overlay display,
The control means changes at least one of the pointer form and the indicator display mode so that the pointer image can be continuously viewed at a position where the pointer image and the index image overlap,
In addition, the control means changes the index display mode by displaying the entire index image that overlaps the pointer image in a hue different from the hue of the pointer image during the overlay display. A display device. 26. The display device according to claim 25 , wherein the control unit displays the entirety in a hue different from the hue of the pointer image . The control means includes a lightness different from any of the lightness of the background, the lightness of the pointer image, and the lightness of the whole in the background peripheral portion of the whole in the background of both the pointer image and the index image. The display device according to claim 25 , wherein the display device is displayed. In the background of both the pointer image and the index image , the control means includes a background peripheral portion around the whole, a hue different from any of the hue of the background, the hue of the pointer image, and the whole hue. in the display device according to claim 26 or 27, characterized in that to display. The display device according to claim 28 , wherein the control means displays the background peripheral portion in a hue different from any of the hue of the background, the hue of the pointer image, and the entire hue. .

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