JPH0722700Y2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a display device, and more particularly to a display device in which a pattern such as a display character is identified from a specific viewing angle.

[Prior Art] Display by conventional printing or the like is generally not limited to the viewing angle direction, and can be identified from any direction. However, depending on the use of the display means, it may be easier to use the display with directionality. And, as a variable display orientation of the display device, Japanese Patent Application No. 63-165635 previously filed by the applicant of the present invention discloses that the direction of the display portion of the mode switching operation portion is rotated so that the photographing direction is changed. It changes according to.

[Problems to be Solved by the Invention] As described above, it is not always desirable that a pattern such as a character to be displayed can be identified from all visual angles including the direction of the line of sight. In terms of usability of the device, it may be more convenient in some cases to allow a pattern such as a character to be displayed to be identified only from the viewing angle in a specific direction.
For example, if the display of the "card insertion part" can be identified only from the direction in which the insertion part of the memory card, which is a recording medium, such as the electronic still camera shown in the embodiment described later, can also serve as a guide for the insertion position. It is convenient to use as a display.

Further, in the above-mentioned Japanese Patent Application No. 63-165635, since the display unit changes the direction of the displayed characters by rotating the display unit without giving directivity such as the viewing angle, The display is identified regardless of the direction of the line of sight.

In order to solve the above-mentioned problems, the present invention makes it possible to easily recognize the operation position and the like by providing directivity in the direction of the viewing angle of the display device, and the cost is low. To provide the equipment.

[Means and Actions for Solving the Problems] The display device of the present invention comprises a first display element forming a base having a first hue, saturation, lightness or reflectance, and a display element on the first display element. A plurality of second hues which are spaced apart from each other and arranged so as to be extended in the longitudinal direction thereof and at least one of which is different from the first hue, saturation, brightness, luminance or reflectance. A display device configured to include a second display element having a substantially stripe shape having saturation, brightness, luminance, or reflectance, wherein the second display element has a pattern such as characters to be displayed. Correspondingly, it is characterized in that its widthwise dimension is modulated with respect to its longitudinal position.

[Embodiment] Hereinafter, the present invention will be described with reference to an illustrated embodiment.

FIG. 1 shows a character pattern display means, which is a display device according to a first embodiment of the present invention. This display means 1 is a printed sticker composed of a first display element 1a and a second display element 1b including a striped portion in the longitudinal direction S. The first display element 1a is a non-modulation portion and forms a background portion of the pattern, that is, a background stripe. The stripe has the first hue, saturation, brightness, brightness, or reflectance, and is black in this embodiment as shown in the drawing.

The second display element 1b has a shape corresponding to a pattern such as a character to be displayed, which is different in shape from the second hue / saturation / brightness / luminance or reflectance different from the first one. It is a modulated, roughly stripe-shaped, white part. Then, the above-mentioned modulation is such that the dimension of the self in the width direction T is modulated with respect to the position of the self in the longitudinal direction S corresponding to the pattern of the character to be displayed as shown in the modulation section M of FIG. . Although the above display pattern is formed by the set of the modulation portions M, the pattern is divided by the image dividing portion I.

The display means 1 in FIG. 1 has "ESTILO" as a character pattern, but from the viewing angle in the direction perpendicular to the paper surface (corresponding to the V direction of the display means 1'in FIG. 2) or in the left and right directions. Since the stripe portion and the image division portion I are clearly recognized, it is difficult to identify as a character. However, from the viewing angle obliquely downward with respect to the paper surface (corresponding to the R direction of the display means 1'in FIG. 2), the first display element 1a which is the background to the second display element 1b which is the modulation section M are It appears to stand out and the letters "ESTILO" are identified.

The reason why the pattern of the display means of the present embodiment is identified only from a specific direction of the viewing angle including the direction of the line of sight and is difficult to be identified from other directions will be described with reference to FIG.

FIG. 3 shows a change in reflectance distribution on the line AA of the display element of the display means 1 of FIG. 1 (white level reference). The first display element 1a and the second display are shown. With respect to the image dividing line I of the element 1b, the curve e shows the change in the reflectance distribution with respect to the viewing angle from the V direction, and the curve e'shows the change in the reflectance distribution with respect to the viewing angle. The curve e does not change in peak value with respect to the display element 1a and the image dividing portion I. That is, the MTF (modulation transfer function) value with respect to the intensity of light is high, and the stripe and the image dividing portion I are also clearly recognized. Therefore, the pattern of the image with respect to the viewing angle in the V direction viewed from above is divided, and it is difficult to identify it as a character. On the other hand, compared to the curve e ', the contrast does not change as compared with the curve e, but the interval between the high-luminance portion and the low-luminance portion is blocked, the MTF value decreases due to the visual characteristics of the observer, and the recognition degree as a stripe decreases. It looks like a gray color, and the MTF value of the image dividing portion I also decreases, so that it cannot be recognized as a dividing portion. On the other hand, since the spatial frequency distribution of the pattern on the image dividing portion I includes the lower frequency side than the stripe, it becomes recognizable to the observer.
The image with respect to the directional viewing angle has a raised pattern, and the characters can be identified.

FIG. 2 shows an example in which a sticker 1'which is a display means having display elements equivalent to the display means of the above-described first embodiment is attached to the main body 2 of an electronic still camera which is an electronic device. As shown in the figure, the photographing lens unit 4, the flash window 3, the insertion port 5 of the recording memory card, and the pattern recognition direction R are attached so that the direction R is on the insertion port 5 side. A sticker 1 ′ and a sticker 1 ′ are arranged on the main body 2. The character pattern of the sticker 1'is "card entrance" or "card ↓".

As described above, even when the sticker 1'is viewed from above in the V direction, it is difficult to identify the character pattern of the above display. However, when viewed from the direction of the card insertion slot 5 position, the above character pattern is identified. Therefore, the insertion position of the memory card can be surely selected and confirmed.

Next, an example in which a sticker having a display element equivalent to the display means of the first embodiment is attached to the mode switching knob of the electronic still camera will be described with reference to FIG. As shown in the figure, the body 11 of the electronic still camera is provided with a taking lens unit 13, a flash window 12, a shooting operation button 14, a playback operation button 15, and a shooting / playback mode switching rotary knob 16. There is. The rotary knob 16 is located on the upper surface of the main body 11 corresponding to the positions where the operation buttons 14 and 15 are arranged. A character pattern of "CAMERA" is printed on the sticker 16a attached on the knob 16 and a character pattern of "PLAY" is printed on the sticker 16b based on the above-described first and second display element formats. Then, when the rotary knob 16 is at the rotation position where the shooting mode is selected, the sticker
When the pattern recognizable direction R of 16a is in the direction in which the button 14 is located and when the rotary knob 16 is in the rotation position in which the reproduction mode is selected, the pattern identifiable direction R of the sticker 16b is in the position of the button 15. Attach them so that they face each other.

In the electronic still camera having the above-described structure, when operating the operation buttons 14 and 15, the user must touch the sticker 16a or 16b from the side where the buttons are located (direction R).
Since the shooting and playback operations can be performed while checking the mode by looking at the character patterns “CAMERA” and “PLAY” of, it is possible to realize a very convenient electronic still camera.

FIG. 5 is a perspective view of an electronic camera which is an electronic device using a display device according to a second embodiment of the present invention. In the display device of this embodiment, the concave and convex portions for slip prevention, which are integrally formed with the main body that is the exterior body, also form the above-mentioned first and second display elements.

A camera body 21 having a photographing lens section 24 and a strobe window 23.
Is a display device that is formed on the main body 21 and also serves as a non-slip
Has 22. The display device 22 includes another 22a corresponding to the valley which is the first display element, and the convex stripe 22b which is the second display element formed based on the pattern of characters or the like to be displayed. It is formed. The cross-sectional shape of the display device 22 is set as shown in FIG.

In the case of this embodiment as well, it is difficult to identify a pattern such as a character especially when viewed from the upper viewing angle, but the pattern can be identified when viewed from the tilt direction R. Therefore, according to the present embodiment, it is possible to provide a display function having directivity for identification without attaching a sticker. In this embodiment, the convex stripe is used as the display element, but conversely, the concave stripe may be used as the display element.

Although the display means uses linear stripes in the above embodiments, it is also possible to form curved display stripes in parallel to form the first and second display elements. Further, the surface of the display means, which is flat in the above embodiment, may be formed by a curved surface. Furthermore, among the striped elements,
The wide portion may be used as the first display element and the narrow portion may be used as the second display element.

[Advantages of the Invention] As described above, the display device of the present invention can limit the identifiable direction (viewing angle) of the display pattern to a predetermined direction, and relates to the position of the operation unit of the device and the operation. By arranging the display pattern in association with the identifiable direction, it is possible to provide a display device having remarkable effects such as more reliable selection of the operation unit and realization of a user-friendly device at a lower cost.

[Brief description of drawings]

FIG. 1 is a plan view of a display means which is a display device showing a first embodiment of the present invention, FIG. 2 is a perspective view of an electronic still camera to which the display means of FIG. 1 is applied, and FIG. 1, a reflectance distribution change diagram of the display element of the display means of FIG. 1, FIG. 4 is a perspective view of another electronic still camera to which the display means of FIG. 1 is applied, and FIG. FIG. 6 is a perspective view of an electronic camera to which the display device according to the second embodiment of the present invention is applied, and FIG. 6 is a sectional view taken along line BB in FIG. 1a, 22a …… first display element 1b, 22b …… second display element S …… longitudinal direction T …… width direction 21 …… main body (exterior body)

Claims (2)

[Scope of utility model registration request] 1. A first display element forming a base having a first hue, saturation, lightness or reflectance, and a plurality of first display elements arranged on the first display element so as to be spaced apart from each other in the longitudinal direction thereof. A general stripe which is arranged so as to be extended and has a second hue / saturation / brightness / luminance or reflectance at least one of which is different from the first hue / saturation / brightness / luminance or reflectance. A second display element in the shape of a circle, the second display element having a widthwise dimension corresponding to a pattern such as a character to be displayed. A display device characterized by being modulated with respect to a directional position. 2. An exterior body of an electronic device is applied as the first display element, and a convex or concave stripe formed on the exterior body of the electronic device is applied as the second display element. The display device according to claim 1, wherein the display device comprises: