JP2007163856A - Light emitting display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid a case wherein a light emission image seems distorted to a viewer owing to light emission display in a state wherein a light emission surface slants up or down. <P>SOLUTION: It is judged that a housing 50 is shaken (step S1) when the absolute value ¾ω¾ of an angular velocity is larger than a threshold value (k), it is judged whether the housing 50 faces up or down (step S3) based upon normal acceleration of rotary motion of the housing 50, a tangential speed calculated, based on the tangential acceleration of the rotary motion, and the angular velocity, and cosθ indicating the degree of inclination of the housing 50 in a direction that the light emission surface faces is calculated (step S4). A display size set to be smaller as the tilt angle θ of the housing 50 is larger, is specified according to the degree cosθ of inclination, data for light emission display for performing the light emission display is selected, based upon the display size, and the light emission display is performed, based on the data (steps S6 to S8). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a light-emitting display device in which each of a plurality of light-emitting means emits light at a predetermined timing and a light-emitting image is displayed using the afterimage effect.

Conventionally, for example, a plurality of light emitting means such as LEDs are arranged in a vertical row on a rod-shaped housing, and each light emitting device is caused to emit light at a predetermined timing while holding one end of the housing and performing a flag swing operation. 2. Description of the Related Art A light emitting display device that displays characters, graphics, and the like using an afterimage effect is known.
Then, for example, by detecting the direction and speed of the flag swing operation with an angular velocity detector and adjusting the light emission timing according to the detected direction, the image to be displayed such as characters and graphics depending on the direction of the flag swing operation is displayed horizontally reversed. Or the image is displayed vertically or horizontally depending on the speed of the flag swing operation (see Patent Document 1), and the swing speed of the housing is detected using an acceleration sensor. There are also proposed ones that adjust the light emission timing according to the above (see Patent Document 2).
JP 2001-242813 A JP 2004-264440 A

By the way, when displaying a character, a figure, etc. by this light emitting display device, the user performs a flag swinging operation with the surface on which the light emitting means is disposed facing the viewer and maintaining this surface substantially vertical. In such a case, the viewer can visually recognize all the light emitting means equally, so that the displayed light emission image can be appropriately visually recognized.
However, when the user shakes the housing while tilting it with respect to the viewer, and the light emitting surface on which the light emitting means is disposed swings obliquely downward, or the light emitting surface faces obliquely upward When it is shaken, the viewer cannot see all the light emitting means equally, so either one of the top and bottom of the light emission image appears dense and the other appears rough. May appear distorted, and the viewer may not be able to accurately see the image displayed on the light emitting display device.

  In addition, when the user grips the grip portion of the housing and shakes the light emitting means on the side where the light emitting means is disposed, the light emitting means is disposed even when the light emitting image is normally displayed. If the screen is shaken with the side facing down, the image to be displayed will be displayed upside down. For example, when the light emission display is performed in the vicinity of the foot, the housing is turned downward. In the case of performing light emission display in a state, there is a problem that the light emission image cannot be accurately recognized by the viewer.

  Therefore, the present invention has been made paying attention to the above-mentioned conventional unsolved problems, and images that are lit and displayed, such as characters and figures, regardless of the inclination of the light emitting surface when performing a flag swing operation. A light-emitting display device that can be accurately viewed by a viewer and can accurately display a predetermined image to the viewer even when the casing is turned upside down. It is intended to provide.

  In order to solve the above-described problems, a light-emitting display device of the present invention includes a device main body in which a plurality of light-emitting means are arranged in the vertical direction, and the device main body moves when the device main body is swung left and right. A light-emitting display device that emits light in response to the image and displays an image using the afterimage effect, and detects a tangential acceleration detection unit that detects a tangential acceleration of a rotational movement of the device body Speed calculating means for calculating the tangential speed of the rotational motion from the acceleration detected by the tangential acceleration detecting means, and normal direction acceleration detecting means for detecting the normal acceleration of the rotational motion; , Based on the detection results of the angular velocity detection means for detecting the angular velocity of the rotation direction of the apparatus main body, the velocity calculation means, the normal direction acceleration detection means, and the angular velocity detection means, An inclination degree calculating means for calculating the degree of inclination with respect to the direction in which the light surface is directed, a display form setting means for setting a display form of an image to be emitted and displayed according to the inclination degree calculated by the inclination degree calculating means, and And a light emission control means for driving and controlling the light emission means so that an image to be light emission displayed is displayed in a light emission manner in a display form set by the display form setting means.

  According to the above configuration, on the basis of the tangential speed of the rotation movement of the apparatus main body, the angle in the normal direction of the rotation movement and the angular speed of the rotation movement, the apparatus in the direction in which the light emitting surface faces The inclination degree of the main body is calculated, and how much the apparatus main body is inclined before or after the direction in which the light emitting surface faces is calculated. Then, a display form of an image to be emitted and displayed is set according to the degree of inclination, and the emission display is performed according to this. Depending on the orientation of the light-emitting surface, the viewer may see the luminescent image distorted, so setting the display form in consideration of this distortion will cause the viewer to see the luminescent image without distortion. An image to be displayed can be accurately viewed by a viewer regardless of the direction of the light emitting surface.

Further, in the above-described light emitting display device, the display form setting means changes a display size of the image to be light-emitting displayed according to the degree of inclination.
According to the above configuration, since the degree of distortion of the luminescent image recognized by the viewer varies depending on the degree of inclination, the display size is set according to the degree of distortion of the luminescent image that occurs according to the degree of inclination, and the influence of distortion is determined. By displaying an image that should be emitted and displayed at a display size that is not affected, the viewer can see a light-emitting image without distortion. Therefore, the viewer can display a light-emitting image without distortion. .

Further, in the above-described light emitting display device, the display form setting means is characterized in that the arrangement of the image to be displayed by light emission is changed according to the degree of inclination.
According to the above configuration, the arrangement is changed together with the display size of the image to be emitted and displayed in accordance with the degree of inclination. Here, when the device main body is shaken, the degree of closing of the light emission image is different within the light emission display possible region defined by the movement locus of the light emission means. Therefore, the display size should be changed and the light emission display after the change should be performed. Depending on the display size of the image, by changing the arrangement for displaying the changed image in the light emission display possible area, the image to be displayed in the first half of the device main body is displayed. In other words, it is possible to avoid a biased light emission display such that nothing is displayed in the second half, and to allow the viewer to visually recognize a light emission image without any sense of incongruity.

Further, in the above-described light emitting display device, the display form setting means changes the shape of the image to be emitted according to the degree of inclination.
According to the above configuration, the shape of the image to be emitted is changed according to the degree of inclination. Here, depending on the degree of inclination, since the luminescent image seen by the viewer looks distorted, by performing luminescent display in a state corrected in advance considering the shape of the portion where this distortion occurs, As a result, it is possible to make the viewer recognize a luminescent image without distortion.

Further, in the above-described light emitting display device, the display form setting means changes at least one of an upper shape and a lower shape of the image to be emitted according to the degree of inclination.
According to the above configuration, when the direction of the light emitting surface is changed, distortion occurs in the upward or downward direction of the light emission image. Therefore, considering this distortion, at least one of these depending on the degree of inclination. By changing the shape, it is possible for a viewer to easily display a luminescent image without distortion.

  Further, the above-described light emitting display device includes a plurality of light emission display data for displaying the image to be emitted in a display form set by the display form setting means, and the light emission control means includes the plurality of light emission display means. The light emission means is driven and controlled based on the light emission display data corresponding to the display form set by the display form setting means among the light emission display data.

  According to the above configuration, a plurality of light emission display data for displaying an image to be emitted in a display form set by the display form setting means is provided in advance, and the display form is set by the display form setting means. Sometimes, the light emission display data corresponding to the set display form is selected and the light emission display is performed based on the selected data, so that the image to be emitted can be easily light-emitted and displayed in the designated display form.

Further, in the above-described light emitting display device, the light emission control means includes the inclination degree calculated by the inclination degree calculating means within a visible inclination range in which a preset viewer can visually recognize the light emission image. The light-emitting display is performed only when it is performed.
According to the above configuration, the light emitting display is performed only when it is included in the viewable region range indicating the degree of inclination that allows the viewer to visually recognize the light emitting image. Therefore, when it is predicted that the viewer cannot visually recognize the luminescent image, the luminescent display is not performed, and therefore it is possible to avoid performing unnecessary luminescent display in a state where the viewer cannot visually recognize the luminescent image.

  Further, in the above-described light emitting display device, based on the detection results of the speed calculation means, the normal direction acceleration detection means, and the angular velocity detection means, it is determined whether the preset display reference of the apparatus main body is up or down. And a display mode set by the display mode setting unit, the light emission control unit having an orientation corresponding to a determination result by the vertical determination unit. The light emitting means is driven and controlled so as to emit light.

  According to the above configuration, based on the tangential speed of the rotational movement of the apparatus main body, the angle in the normal direction of the rotational movement, and the angular speed of the rotational movement, the display standard set in advance of the apparatus main body, that is, the light emitting display. It is determined whether the position serving as a reference for determining the vertical direction when performing the operation is in the vertical direction, not only the display form according to the inclination degree of the apparatus body, but also the display reference of the apparatus body Depending on the direction of the display, light emission is displayed. Here, when the luminescent display is performed in the same manner regardless of the vertical orientation of the display standard of the device main body, the luminescent image may appear upside down to the viewer depending on the vertical orientation of the display standard of the device main body. However, since the light emission display is performed in consideration of the vertical orientation of the display standard of the device main body, the viewer can visually recognize the light emission image without being upside down regardless of the vertical orientation of the display standard of the device main body. can do.

  In addition, the apparatus main body is provided with a plurality of light emitting means arranged in the vertical direction, and when the apparatus main body is swung left and right, the light emitting means emits light according to the movement of the apparatus main body, and the afterimage effect is used. A light-emitting display device configured to display an image, wherein the tangential acceleration detection means for detecting a tangential acceleration of the rotational movement of the apparatus body, and the acceleration detected by the tangential acceleration detection means. Speed calculating means for calculating the tangential speed of the dynamic motion, normal direction acceleration detecting means for detecting the acceleration in the normal direction of the rotational motion, and angular speed detection for detecting the angular speed of the device body in the rotational direction And whether the preset display reference of the apparatus main body is up or down based on the detection results of the means, the speed calculation means, the normal direction acceleration detection means, and the angular velocity detection means And a light emission control means for drivingly controlling the light emission means so that an image to be emitted and displayed is emitted and displayed in a direction corresponding to a determination result of the up / down determination means. .

  According to the above configuration, based on the tangential speed of the rotational movement of the apparatus main body, the angle in the normal direction of the rotational movement, and the angular speed of the rotational movement, the display standard set in advance of the apparatus main body, that is, the light emitting display. It is determined whether the position serving as a reference for determining the vertical direction when performing the display is upward or downward, and light emission display is performed according to the vertical direction of the display reference of the apparatus main body. Here, when the light emission display is performed by the same method regardless of the vertical direction of the display standard of the apparatus main body, the light emission image looks upside down for the viewer depending on the vertical direction of the display standard of the apparatus main body. However, since the light emission display is performed in consideration of the vertical orientation of the display standard of the device main body, the viewer can view the luminous image without being upside down regardless of the vertical orientation of the ideographic standard of the device main body. It can be visually recognized.

Further, in the above-described light emitting display device, the tangential acceleration detection means and the normal acceleration detection means are provided on an end of the apparatus main body opposite to an end of the apparatus main body on the fulcrum side. It is characterized by being arranged in.
According to the above configuration, the tangential direction acceleration detection means and the normal direction acceleration detection means are arranged at the end of the apparatus main body opposite to the end on the fulcrum side of the rotational movement. Since it is arranged at a point where the acceleration in the tangential direction and the normal direction due to the dynamic motion becomes the largest, it is possible to obtain a highly accurate acceleration with little influence of noise or the like.

Further, the above-described light emitting display device is characterized by being applied to a versatile lighter.
According to the above configuration, the image can be accurately viewed by the viewer without being distorted even if the versatile writer is tilted to the viewer side or the opposite side due to the manner of swinging the bar writer. .

Embodiments of the present invention will be described below.
FIG. 1 is a block diagram showing an embodiment of the present invention.
In the figure, reference numeral 1 denotes a housing, which has a substantially cylindrical elongated bar shape. The length of the housing 1 is about 20 cm to 60 cm, and a grip portion 2 for gripping with a hand is formed at one end portion in the longitudinal direction. The housing 1 and the grip portion 2 constitute a housing of the light emitting display device. A body 50 is configured, and the casing 50 is used by shaking the grip portion 2 with a hand and with the housing 1 facing upward or downward. A plurality of light emitting diodes LED are arranged in a line along the longitudinal direction of the light emitting portion 3 from the other longitudinal end of the housing 1 to the grip portion 2.

Here, the light emitting diodes LED are arranged in one row, but may be arranged in two or more rows.
Near the end of the light emitting unit 3 on the opposite side to the grip unit 2, the acceleration is in the direction perpendicular to the longitudinal direction of the housing 1, and the tangent of the rotational movement of the housing 50 when the flag is operated. An acceleration sensor 11X for detecting the acceleration in the direction and an acceleration sensor 11Y for detecting the acceleration in the longitudinal direction of the casing 50, that is, the normal direction of the rotational movement are provided. Further, the grip portion 2 has an angular velocity about an axis whose axis is a direction perpendicular to the light emitting surface 3a on which the light emitting diodes LED are arranged, that is, an axis whose axis is a rotation center when the housing 50 is shaken. An angular velocity sensor 12 such as a gyro sensor for detecting the angular velocity is provided.

  Note that the tangential acceleration sensor 11X and the normal acceleration sensor 11Y have a rotational motion of the housing 50 in which the tangential and normal accelerations of the housing 50 appear the greatest in terms of noise resistance. It is preferable to provide the position farthest from the fulcrum, that is, in the vicinity of the end of the housing 50 opposite to the grip 3. Moreover, the acceleration sensor 11Y in the normal direction has a positive value for the acceleration in the direction in which the centrifugal force acts. The arrangement position of the angular velocity sensor 12 is not limited to the grip portion 2, and the angular velocity sensor 12 is arranged at any position as long as the angular velocity in the direction around the rotation center of the rotation movement of the housing 50 can be detected. Also good.

FIG. 2 is a block diagram showing a functional configuration of a control device 60 that is disposed inside the housing 50 and controls the light emission of the light emitting diode LED.
As shown in FIG. 2, the control device 60 is based on the tangential acceleration detected by the acceleration sensor 11X, the normal acceleration detected by the acceleration sensor 11Y, and the angular velocity detected by the angular velocity sensor 12. An arithmetic processing unit 20 including a microcomputer that outputs a light emission control signal for causing an image such as a predetermined character or figure to be emitted and displayed, and a predetermined value based on the light emission control signal from the arithmetic processing unit 20 And a drive circuit 30 that generates a drive signal for driving a predetermined light-emitting diode LED at the timing shown in FIG.

  The arithmetic processing unit 20 integrates a detection signal of the acceleration sensor 11X with time to calculate a speed, a normal direction acceleration sensor 11Y detection signal, an angular velocity sensor 12 detection signal, and a speed calculation process. Based on the speed value calculated by the unit 21, the attitude of detecting the start of the rotational movement of the housing 50 accompanying the start of the user's flag swing operation and detecting the degree of inclination of the housing 50 during the flag swing operation A display processing unit 22, a memory 23 in which data for light emission display such as characters and figures to be displayed in light emission are stored, and a display size at the time of light emission display based on the inclination detected by the posture detection processing unit 22; A signal processing unit 24 that outputs a light emission control signal for driving each light emitting diode LED based on the display size and the light emission display data stored in the memory 23 is provided.

  For example, as shown in FIG. 3, the speed calculation processing unit 21 includes a low-pass filter 21a that performs low-pass filter processing on the detection signal of the tangential acceleration sensor 11X, and an A / D that converts the output of the low-pass filter 21a into a digital signal. A converter 21b and an integration processing unit 21c that time-integrates the output of the A / D converter 21b are provided, and the output of the integration processing 21c is output to the attitude detection processing unit 21 as a velocity value.

The drive circuit 30 has a drive circuit corresponding to each light emitting diode LED, and generates a drive signal for causing each light emitting diode LED to emit light by D / A converting the light emission control signal from the signal processing unit 23. This is output to the corresponding light emitting diode LED.
The grip unit 2 is provided with a power switch (not shown). By turning this power switch on, power supply from a battery (not shown) stored in the grip unit 2 to each unit is started and can be operated. It is comprised so that it may become.

FIG. 4 is a flowchart illustrating an example of a processing procedure of processing executed by the arithmetic processing unit 20.
First, the arithmetic processing unit 20 reads the detection signal of the angular velocity sensor 12, and determines whether or not the absolute value | ω | of the angular velocity is larger than a preset threshold value k (step S1). Here, since the output signal of the angular velocity sensor 12 is obtained as an analog value, as shown in FIG. 5, a dead zone for determining whether or not the casing 50 is shaken is provided, and a threshold value k corresponding to this dead zone is provided. When it exceeds, it is determined that the housing 50 is shaken.

If the case 50 is not shaken, the process is terminated as it is. If the case 50 is shaken, the process proceeds to step S 2, and the speed value is read from the speed calculation processing circuit 15. That is, the velocity value obtained by time-integrating the detection signal of the acceleration sensor 11X at the time when the absolute value | ω | of the angular velocity detected by the angular velocity sensor 12 exceeds the threshold value k is read.
Next, the process proceeds to step S3, where it is determined whether the casing 50 is facing up or down, that is, whether the light emitting unit 3 is facing up or down with respect to the grip unit 2.

  Specifically, as shown in FIG. 6, this determination is performed by setting a stationary acceleration corresponding to the output signal Vref of the acceleration sensor 11 </ b> Y in the normal direction, which is a preset voltage signal when the casing 50 is stationary. Based on Aref, a threshold value α corresponding to a dead zone of an acceleration sensor 11Y described later, and an angular velocity ω obtained from the angular velocity sensor 12 and a centrifugal force calculated from the product of the velocity value v detected by the velocity calculation processing circuit 15 In addition, it is determined whether or not the acceleration value Ay obtained from the acceleration sensor 11Y in the normal direction satisfies the following expression (1). When the acceleration value Ay obtained from the acceleration sensor 11Y satisfies the expression (1), the housing 50 determines that the light emitting unit 3 faces downward, and when the acceleration value Ay does not satisfy the expression (1), the upward direction is determined. Judge that it is suitable.

Ay <Aref−α−ω · v (1)
That is, in the equation (1), it is determined whether the gravitational acceleration component is a positive value or a negative value in the normal direction acceleration. When the gravitational acceleration component is a negative value, the light emitting unit 3 Judging that it is facing the direction.
Since the output signal of the acceleration sensor 11Y in the normal direction is obtained as an analog value, a certain dead band width is provided, and it is determined that acceleration occurs when the output signal exceeds a threshold value α corresponding to the dead band width. ing.

Next, the process proceeds to step S4, and the inclination degree of the housing 50 is calculated. Here, as shown in FIG. 7, the inclination degree is represented by cos θ, where the vertical direction is the reference and the inclination angle from the vertical direction is θ.
The inclination degree cos θ is calculated by the following procedure.
The modulus of the casing 50 detected by the normal direction acceleration sensor 11Y, where v is the tangential velocity when the absolute value | ω | of the angular velocity detected by the angular velocity sensor 12 exceeds the threshold value k. The linear acceleration Ay can be expressed by the following equation (2).

Ay = g · cos θ−k · v (2)
In addition, g in (2) Formula is a gravitational acceleration.
Therefore, from the equation (2), cos θ can be calculated from the following equation (3).
cos θ = (Ay + k · v) / g (3)
Next, the process proceeds to step S5, and it is determined whether or not the absolute value of the inclination degree cos θ calculated in step S4 is larger than a preset threshold value Sth. This threshold value Sth can be considered that the viewer cannot visually recognize the luminescent image even if the case 50 is held at a relatively horizontal inclination and the luminescent display is performed in this state. Set to a value.

  When the absolute value of the inclination degree cos θ is larger than the threshold value Sth, the housing 50 determines that the viewer can visually recognize the light emitting surface 3a on which the light emitting diode LED is arranged. The process proceeds to S6. On the other hand, when the degree of inclination cos θ is equal to or less than the threshold value Sth, the housing 50 is maintained in a substantially horizontal state, and the light emitting surface 3a faces upward or downward and is in a position facing the user. However, it is determined that the light emitting surface 3a cannot be accurately recognized, and it is impossible to visually recognize the light emitting image, and the processing is ended as it is.

In step S6, a display size corresponding to the inclination degree cos θ is determined.
As shown in FIG. 8, this display size is set when the absolute value of the inclination degree cos θ is larger than the threshold Sth, and is set so that the display size becomes larger as the absolute value of the inclination degree cos θ is larger. cos θ = 1, that is, 100% when the front end side of the light emitting unit 3 serving as a display reference when performing a light emission image in the housing 50 is held vertically facing up or down. In the area where the absolute value of the inclination degree cos θ is equal to or smaller than the threshold value Sth, the output of the acceleration sensor 11X is a value in the dead zone area, and the inclination degree cos θ is not correctly calculated, or light emission display is performed in this area. Even if it is a region where the viewer cannot accurately see the luminescent image, it is set as a non-display zone in which no luminescent display is performed.

Then, light emission display data corresponding to the display size corresponding to the inclination degree cos θ is specified from the memory 23.
Here, the memory 23 stores a plurality of light emission display data having different display sizes for displaying the same image.
That is, as shown in FIG. 9, for example, when a square is lit and displayed, when a flag swinging operation is performed with the casing 50 kept vertical, a viewer who visually observes the luminescent image is shown in FIG. As shown to a), it can visually recognize that a luminescent image is square. However, when the flag swing operation is performed in a state in which the housing 50 is tilted forward to the viewer side, as shown in FIG. 9B, the upper image of the luminescent image looks dense to the viewer, Since the lower image looks rough, the luminescent image looks distorted, and it is difficult to see whether the luminescent image is a square, and it may not be recognized as a square.

  On the contrary, when the flag swing operation is performed with the housing 50 tilted later, the upper image of the luminescent image looks rough and the lower image looks dense to the viewer. The image appears distorted, and again, it may not appear square. In this way, when a dense part and a rough part appear and the luminescent image looks distorted, in the case of a figure or pattern, or a character with a similar shape such as `` a '' and `` nu '', etc., There is a possibility of recognizing the shape by mistake.

In order to avoid this, as shown in FIG. 9C, even if the casing 50 is tilted, a rough portion and a dense portion are not generated in the display image or in a region where the influence is small. If the display is reduced so that the entire image to be displayed is displayed, the viewer can see a light-emitting image equivalent to the image that is light-displayed regardless of the tilted state of the housing 50.
Therefore, even if the memory 23 is data for light emission display corresponding to the inclination degree of the housing 50 and the light emission display is performed with the inclination degree, the viewer can accurately recognize the light emission image. A plurality of light emission display data for performing light emission display in a possible size are set and stored according to the degree of inclination.

  Specifically, when a light emission display is performed in an area that can be displayed in a state where the inclination degree cos θ is about “1” and the housing 50 is held substantially vertically, The light emission display data in the vertical direction, which can be recognized by the viewer as a light emission image with an appropriate arrangement, from the viewpoint of the size, interval, etc. When the angle θ is relatively small and the upper and lower parts of the luminescent image appear dense or rough to the viewer, and the luminescent image appears to be slightly distorted, for example, a portion that appears to be dense or rough. Light emitting display data for displaying an entire image to be displayed by light emission using light emitting diodes other than the light emitting diode corresponding to the above, that is, for displaying an image reduced in comparison with the vertical direction. The emission image is distorted The data for light emission display when the inclination is small, and the inclination angle, which can be recognized by the viewer as a light emission image of an appropriate arrangement from the viewpoint of the size, interval, etc. When the θ is relatively large and the light emission image is relatively large and distorted, the display size, such as data for light emission display when the inclination is large, is displayed to display an image that is further reduced than when the inclination is small. Although different, a plurality of light emission display data for displaying the same image is set.

  Further, for each of these light emission display data, the light emission display data for the upper display for making the viewer visually recognize as an appropriate light emission image when performing the light emission display with the light emitting unit 3 facing upward, Light emission display data for lower display that can be viewed by a viewer as an appropriate light emission image when light emission display is performed with the light emitting unit 3 facing downward is set.

  Note that the light emission display data having different display sizes is specified according to the inclination degree cos θ, for example, by setting the display size in a plurality of stages and setting the light emission display data having a display size corresponding to each display stage. The light emission display data at the stage corresponding to the display size may be selected. Further, for example, as described in Japanese Patent Application Laid-Open No. 2004-333542, light emission display data for displaying at a display size corresponding to the degree of inclination cos θ is based on light emission display data having a reference display size. , Interpolating this to generate light emission display data for enlarged display, or to generate light emission display data for reduced display by taking the average value of adjacent light emission data, etc. Using known enlargement and reduction methods, light emission display data for display with a display size corresponding to the radius r of the rotational motion may be generated each time, and the light emission display may be performed using this.

  For example, as shown in FIG. 10, the light emission display data displays the number “1” as a light emission image. If the number of light emitting diodes LED is eight, for example, eight rows as shown in FIG. It is composed of matrix data of × 12 columns, and data “0” or “1” is stored in each element of the matrix. When each light-emitting diode LED shown in FIG. 1 is LED1, LED2,..., LED8 in order from the light-emitting diode at the tip of the light-emitting unit 3, the first line of light-emitting display data represents the light-emitting data of the light-emitting diode LED1. The second row represents the light emission data of the light emitting diode LED2. Similarly, each row corresponds to each light emitting diode, and the bottom row corresponds to the light emitting diode LED8. In this case, since the numeral “1” is displayed as light emission as shown in FIG. 10, when the light emitting diodes are light-displayed by switching the column data as shown in FIG. The light emission data is set so that “1” can be displayed.

As shown in FIG. 10B, the data for light emission display when the light emitting unit 3 is shaken downward is the same, and is set, for example, as shown in FIG. 11B.
When the light emission display data having the display size corresponding to the inclination degree cos θ is specified in this way, the process proceeds to step S7, and the light emission display processing based on the specified light emission display data is performed. For example, for each column data for one column, the column data is output to the driving circuit 30 at a predetermined timing, and the driving circuit 30 drives the light emitting diode specified by the column data to emit light. If “1” is set, the corresponding light emitting diode is caused to emit light, and if “0” is set as the emission data, the corresponding light emitting die auto is not caused to emit light. Accordingly, the portion where “1” is set in the light emission display data of FIG. 11 emits light, and as a result, the number “1” is displayed.

  The light emission display process may be performed by a known procedure. For example, as described in Japanese Patent Application Laid-Open No. 2004-333542, the elapsed time from the start of swinging is measured, and column data is obtained every predetermined elapsed time. May be sequentially read and displayed. Further, the rotation angle is calculated by integrating the angular velocity per unit time based on the angular velocity ω detected by the angular velocity sensor 12, and the column data is sequentially read and displayed every time the rotation angle becomes a preset angle. May be. In this way, by updating the column data according to the rotation angle, it is possible to appropriately perform light emission display regardless of the swing speed when performing the flag swing operation.

  Further, based on the sign of the detection signal of the angular velocity sensor 12, it is determined whether the casing 50 is swung from the right to the left or from the left to the right. By changing the reading direction of the column data, it is possible to always display an appropriate light emission image without changing the direction of the flag swinging operation of the housing 50 so that the left and right are reversed.

  Further, based on the detection signal of the acceleration sensor 11X that detects the acceleration in the tangential direction of the rotational movement of the casing 50, for example, as described in JP-A-2004-264440, the acceleration sensor 11X The detected acceleration may be integrated to calculate the speed in the tangential direction, and the light emission display timing may be determined based on the speed in the tangential direction. Therefore, any method of determining the light emission timing, updating the light emission data, etc. can be applied as long as it is a light emitting display device that performs light emission display accordingly.

Then, if the light emission display processing is performed for the column data for one column, the process proceeds to step S8, where it is determined whether or not the absolute value | ω | of the angular velocity from the angular velocity sensor 12 is equal to or less than the threshold value k. If it is not less than or equal to the value k, it is determined that the casing 50 is shaken, and the process returns to step S7 to perform the light emission display process for the next column of column data.
Then, when the absolute value of the angular velocity | ω | becomes equal to or less than the threshold value k, it is determined that the casing 50 has stopped, that is, the flag swinging operation has ended, and the processing ends.

Next, the operation of the above embodiment will be described.
When a power switch (not shown) is turned on, each unit is in an operable state, and the arithmetic processing unit 20 starts the arithmetic processing shown in FIG.
When the casing 50 is not shaken, or when the casing 50 is not shaken in the direction orthogonal to the longitudinal direction and is not shaken in the direction around the detection axis of the angular velocity sensor 12, the absolute value of the angular velocity. | Ω | is equal to or less than the threshold value k. For this reason, in the arithmetic processing unit 20, the process ends in step S1, and no light emission display is performed.

  From this state, when the user starts the flag swing operation of the housing 50 and the housing 50 is swung in the direction around the detection axis of the angular velocity sensor 12, the absolute value | ω | of the angular velocity exceeds the threshold value k. At this point, the process proceeds from step S1 to step S2, the speed value is read from the speed calculation processing unit 21, and the speed value, the angular speed ω obtained from the angular speed sensor 12, and the output Ay of the acceleration sensor 11Y are the above (1). It is determined whether or not the expression is satisfied (step S3).

  At this time, as shown in FIG. 10A, when the user performs the flag swinging operation with the grip 2 and the light emitting unit 3 facing upward, the acceleration in the normal direction is the gravitational acceleration. Since the component appears as a positive value, the expression (1) is not satisfied. For this reason, it is determined that the light-emitting unit 3 is shaken upward. Then, the angular velocity ω calculated from the product of the acceleration Ay obtained from the acceleration sensor 11Y at this time and the velocity value v when the angular velocity ω exceeds the threshold value k and the threshold value k becomes the threshold value k. The inclination degree cos θ is calculated from the centrifugal force when exceeding and the gravitational acceleration g according to the above equation (3).

At this time, for example, as shown in FIG. 7, when the flag 50 is operated in a state where the casing 50 is tilted forward from the vertical to the viewer side, the inclination degree cos θ corresponding to the inclination angle θ is calculated. Will be.
At this time, assuming that the tilt angle θ is relatively small, the viewer can visually recognize the light-emitting image when the light emission display is performed in this state. Therefore, the absolute value | cos θ | In order to exceed the value Sth, the process proceeds from step S5 to step S6, and the display size corresponding to the inclination degree cos θ is specified from the characteristic diagram of FIG. In this case, since the tilt angle θ is relatively small and the tilt degree cos θ is relatively large, the display size is specified to be a relatively large size, display is performed with the specified display size, and the light emitting unit 3 is placed upward. The light emission display data that enables the light emission display in the above state is specified.

Based on the data for light emission display, the light emitting diode LED is driven by the drive circuit 30 according to the column data at a predetermined timing, and the light emission data designated according to the column data emits light (step S7).
Therefore, for example, when the casing 50 is shaken, the leftmost column data is sequentially read from the upper display light emission display data shown in FIG. 11A, and each light emitting diode LED emits light accordingly. Therefore, for example, as shown in FIG. 11A, the number “1” is displayed by light emission due to the afterimage effect. At this time, since the housing 50 is held in a relatively vertical state, a viewer who has visually recognized the light-emitting image displayed by light emission can visually recognize it as “1”, and the light-emitting image looks distorted. There is nothing.

When the user is swinging the housing 50 in a state of being further tilted forward to the viewer side, the gravitational acceleration component of the normal direction acceleration is further reduced, and thus the absolute value of the inclination degree cos θ. Is a smaller value.
For this reason, as the inclination degree cos θ is smaller, the display size specified in FIG. 8 is smaller, and light emission display data for displaying an image having a relatively small display size is selected.

Therefore, when the light emission display is performed using the data for light emission display corresponding to the inclination degree cos θ at this time, as shown in FIG. The display size is small compared to the case of shaking (FIG. 12A).
Here, as described above, when the flag swing operation is performed in a state where the housing 50 is tilted forward, the upper and lower portions of the light emission image appear to be dense or rough to the viewer. The image may appear distorted. However, as described above, the light emission display is performed with a display size smaller than the display size in the case of being shaken in the vertical state, and as shown in FIG. In this case, the light-emitting image equivalent to the light-emitting display image can be made visible to the viewer without causing distortion, although the display image is somewhat small. .

  At this time, as described above, the data for light emission display can be viewed as an appropriate display image even when the light emission display is performed in an inclined state such as the display size and the display interval. Since it is set to be possible, even if the display size is changed, the display of the luminescent image ends in the first half of the start time of the flag swing operation and is displayed in a biased manner There is nothing.

In addition, for example, the user further tilts the housing 50 and maintains the state close to horizontal, and performs a flag swinging operation in a state where the user cannot tilt the light emission image when viewed from the viewer. When the absolute value of the degree of inclination cosθ is equal to or less than the threshold value Sth, the process is terminated as it is from step S5 and no light emission display is performed.
Accordingly, it is possible to avoid performing light emission display in a state where the viewer cannot visually observe the light emission image, to avoid performing unnecessary light emission display, and to avoid unnecessary power consumption.

  Further, from this state, when the user performs a flag swinging operation with the front end portion 3 of the housing 50 facing downward as shown in FIG. Since the gravitational acceleration component is a negative value and satisfies the equation (1), it is determined that the light emitting unit 3 is facing downward in the process of step S3. Then, the display size corresponding to the inclination degree θ at this time is specified, and the light emission display data corresponding to this is specified. In this case, the flag swing operation is performed with the light emitting unit 3 facing downward. Therefore, the light emission display data for the lower display is specified.

Therefore, by performing the light emission display process using the light emission display data for the lower display according to the degree of inclination cos θ, as shown in FIG. 10B, the number “ 1 ″ will be displayed, and even when the light emitting unit 3 is changed up and down, the display image is not displayed upside down and can be displayed accurately.
In addition, when performing the flag swing operation with the light emitting unit 3 facing downward, the light emission display data is changed according to the degree of inclination of the casing 50 forward or backward. Regardless, it is possible for the viewer to visually recognize an appropriate light emission image.

In addition, even in the state where the light emitting unit 3 is faced down as described above, it is possible for the viewer to accurately view the light emission image. For example, when performing the flag swing operation above and below the flag It is also possible to display different images depending on the swing operation.
Further, since the inclination degree cos θ of the casing 50 is detected every time the start of the flag swing operation of the casing 50 is detected, even if the inclination degree changes with every swing of the flag swing action. Accordingly, it is possible to appropriately perform light emission display.

  Further, as described above, the start of the flag swing operation is determined based on the angular velocity detected by the angular velocity sensor 12. Here, when the start of the flag swing operation is determined by using the acceleration sensor, for example, when the train starts in the state of being in the train, the acceleration sensor detects this. Even if it is not performed, it may be determined that the flag swing operation has been performed and malfunction may occur. However, since the determination of the start of the flag swing operation is performed using the angular velocity sensor 12 as described above, it is possible to avoid erroneous operation and accurately determine the start of the flag swing operation.

  Further, as described above, the tangential acceleration sensor 11X for detecting the tangential acceleration of the rotational movement of the housing 50 and the normal acceleration sensor 11Y for detecting the normal acceleration are rotated. Since it is provided at the end of the light emitting unit 3 that is farthest from the fulcrum of movement, it is possible to obtain an acceleration detection value that is less affected by noise, and by calculating the inclination degree θ based on this, it is possible to obtain a higher accuracy. The inclination degree θ can be acquired.

In the above embodiment, a case has been described in which the viewer can accurately view the luminescent image by changing the display size according to the degree of inclination. However, the present invention is not limited to this. is not.
As described above, when the light emission display is performed in a state where the casing 50 is inclined, the light emission image appears to be distorted because the upper or lower portion of the light emission image looks dense or rough to the viewer. .

  Therefore, as shown in FIG. 13B, the data for light emission display in the case where the light emission display is performed with the housing 50 being substantially vertical as shown in FIG. 13A is corrected according to the degree of inclination. . As shown in FIG. 14, when a flag swing operation is performed on the viewer with the casing 50 tilted later, the viewer has a rough image above the luminescent image and a dense image below. For example, when displaying the number “8”, as shown in FIG. 13B, the number of light emitting diodes that simultaneously emit light in the upper portion that appears to be rough is increased. By reducing the number of light emitting diodes that emit light at the same time for the lower part that appears to be dense, the part that appeared to be dense and the part that appeared to be coarse were corrected for the viewer. Therefore, the viewer visually recognizes the light emission image having the same shape as the light emission display image.

Therefore, the viewer can visually recognize a light-emitting image having the same shape as the light-emitting display image regardless of the inclination degree of the housing 50.
Here, as shown in FIG. 14, the case has been described where the shape of the image to be lit is corrected when the flag swing operation is performed with the housing 50 tilted later. The same applies to a state where the vehicle is tilted forward. Therefore, for example, as light emission display data, a plurality of light emission display data obtained by correcting the shape of the image to be light emission displayed according to the degree of inclination when the housing 50 is inclined forward, and the degree of inclination when the case 50 is inclined later. In accordance with the above, a plurality of light emission display data in which the shape of the image to be light emission display is corrected is generated in advance and stored in the memory 23. From the plurality of light emission display data, before and after The light emission display data obtained by correcting the shape of the image to be light emission displayed according to the inclination degree may be selected according to the inclination of the image.

  In addition, as described above, the method of changing the display size according to the degree of inclination and the method of changing the shape of the image to be lit and displayed according to the degree of inclination are combined, and the display size and the luminescent display are displayed according to the degree of inclination. The shape of the image itself may be changed together. By doing so, the viewer can accurately recognize the luminescent image while maintaining an appropriate size of the luminescent image.

In addition, here, as shown in FIG. 14, the case where the casing 50 is swung rearward and shaken upward has been described, but the inclination degree is similarly applied to the case where the case 50 is swung forward and shaken downward. The light emission display data in which the image shape is corrected according to the above may be created and stored in the memory 23.
In the above embodiment, the case where the present invention is applied to the rod-shaped housing 50 has been described. However, the shape of the housing is not limited to the rod shape, and any shape can be applied. The present invention can be applied to any light emitting display device that performs light emission display by a user performing a flag swing operation.

  In the above embodiment, the case of displaying a single numeral has been described. However, the present invention is applicable even when a plurality of letters and numbers are displayed or when a plurality of words are displayed alternately. Further, the present invention can also be applied to a light emitting display device that reads an image to be lit and displayed by a scanner or the like and displays the read image by luminescence. In this case, based on the read image, light emission display data for displaying the read image with a display size corresponding to the degree of inclination may be generated, and the light emission display process may be performed based on the data.

  Further, in the above embodiment, when the absolute value of the inclination degree cos θ is equal to or less than the preset threshold value Sth, the light emission display is not performed. However, for example, a separate switch unit is provided, “Processing that no light emission display is performed when the inclination degree cos θ is equal to or less than the threshold value Sth” is configured to be selectable by the switch means, and the flag swing operation is performed when the inclination degree cos θ is equal to or less than the threshold value, that is, near the horizontal. It may be configured such that light-emitting display is possible even during By configuring in this way, for example, when it is desired that the viewer who is located above or below the viewer of the housing 50 sees the light emission image, the case 50 is moved in a substantially horizontal state. It is also possible to perform light emission display. In this case, since the viewer is predicted to be located above or below, it is not necessary to correct the distortion of the luminescent image. Therefore, the light emission display may be performed using the light emission display data when the flag swing operation is performed in a state where the casing 50 is maintained substantially vertical, instead of the light emission display data considering the distortion of the light emission image. .

  Here, in the above embodiment, the housing 50 corresponds to the apparatus main body, the light emitting diode LED corresponds to the light emitting means, the acceleration sensor 11X corresponds to the tangential acceleration detection means, and the speed calculation processing unit 21 calculates the speed. The acceleration sensor 11Y corresponds to the normal direction acceleration detection means, the angular velocity sensor 12 corresponds to the angular velocity detection means, the processing in step S4 in FIG. 4 corresponds to the inclination degree calculation means, and the processing in step S6. Corresponds to the display form setting means, and the processing of step S7 corresponds to the light emission control means.

  Further, the processing in step S3 in FIG. 4 corresponds to the up / down determination means.

It is an external view which shows embodiment of this invention. It is a functional block diagram which shows the structure of this invention. It is an example of the speed calculation process part of FIG. It is a flowchart which shows an example of the process sequence of the arithmetic processing performed with the arithmetic processing apparatus of FIG. It is explanatory drawing for demonstrating the threshold value of the detected value detected with an angular velocity sensor. It is explanatory drawing for demonstrating the threshold value of the detected value detected with the acceleration sensor of a normal direction. It is explanatory drawing with which it uses for operation | movement description of this invention. It is a characteristic view which shows a response | compatibility with an inclination degree and display size. It is explanatory drawing with which it uses for operation | movement description of this invention. It is explanatory drawing with which it uses for operation | movement description of this invention. It is an example of the data for light emission display. It is explanatory drawing with which it uses for operation | movement description of this invention. It is explanatory drawing for demonstrating the correction method of the data for light emission display. It is explanatory drawing for demonstrating the correction method of the data for light emission display.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Housing, 2 Grip part, 3 Light emission part, 11X Tangential acceleration sensor, 11Y Normal direction acceleration sensor, 12 Angular velocity sensor, 20 Arithmetic processing device, 21 Speed calculation processing part, 22 Attitude detection processing part, 23 Memory, 24 signal processing unit, 30 drive circuit, 50 housing, 60 control device, LED light emitting diode

Claims (11)

A device main body having a plurality of light emitting means arranged in the vertical direction,
A light-emitting display device configured to cause the light-emitting means to emit light according to movement of the device main body when the device main body is swung left and right, and to perform image display using the afterimage effect;
Tangential acceleration detection means for detecting tangential acceleration of the rotational movement of the apparatus body;
Speed calculating means for calculating the tangential speed of the rotational movement from the acceleration detected by the tangential acceleration detecting means;
Normal direction acceleration detecting means for detecting acceleration in the normal direction of the rotational movement;
Angular velocity detection means for detecting the angular velocity in the rotation direction of the apparatus body;
Based on the detection results of the speed calculation means, the normal direction acceleration detection means, and the angular velocity detection means, an inclination degree calculation means for calculating an inclination degree of the device main body with respect to the direction in which the light emitting surface faces,
Display form setting means for setting a display form of an image to be emitted and displayed according to the inclination degree calculated by the inclination degree calculating means;
A light emission display device comprising: light emission control means for drivingly controlling the light emission means so that the image to be light emission displayed is displayed in a light emission form set by the display form setting means.   The light emitting display device according to claim 1, wherein the display form setting unit changes a display size of the image to be displayed by light emission according to the degree of inclination.   The light emitting display device according to claim 2, wherein the display form setting unit changes an arrangement of the images to be light-emitting displayed according to the degree of inclination.   4. The light emitting display device according to claim 1, wherein the display form setting unit changes a shape of the image to be emitted according to the inclination degree. 5.   The light emitting display device according to claim 4, wherein the display form setting unit changes at least one of an upper shape and a lower shape of the image to be emitted according to the degree of inclination. A plurality of light emission display data for displaying the image to be emitted in a display form set by the display form setting means;
The light emission control means drives and controls the light emission means based on light emission display data corresponding to a display form set by the display form setting means among the plurality of light emission display data. The light-emitting display device according to any one of claims 1 to 5.   The light emission control means displays the light emission display only when the inclination degree calculated by the inclination degree calculating means is included in a visible inclination range in which a preset viewer can visually recognize a light emission image. The light emitting display device according to claim 1, wherein the light emitting display device is performed. Based on the detection results of the speed calculation means, the normal direction acceleration detection means, and the angular velocity detection means, the apparatus includes a vertical judgment means for judging whether the preset display reference of the apparatus body is up or down,
The light emission control unit is configured to display the light emission so that the image to be displayed is light-emitting in a direction according to a determination result of the up / down determination unit and in a display form set by the display form setting unit. The light-emitting display device according to any one of claims 1 to 7, wherein the means is driven and controlled. A device main body having a plurality of light emitting means arranged in the vertical direction,
A light-emitting display device configured to cause the light-emitting means to emit light according to movement of the device main body when the device main body is swung left and right, and to perform image display using the afterimage effect;
Tangential acceleration detection means for detecting tangential acceleration of the rotational movement of the apparatus body;
Speed calculating means for calculating the speed in the tangential direction of the rotational motion from the acceleration detected by the tangential acceleration detecting means;
Normal direction acceleration detecting means for detecting acceleration in the normal direction of the rotational movement;
Angular velocity detection means for detecting the angular velocity in the rotation direction of the apparatus body;
Based on the detection results of the speed calculation means, the normal direction acceleration detection means, and the angular velocity detection means, an up / down judgment means for judging whether the preset display reference of the apparatus body is up or down;
A light emission display device comprising: a light emission control unit that drives and controls the light emission unit so that an image to be displayed for light emission is displayed in a light emission direction according to a determination result of the up / down determination unit.   The tangential acceleration detection means and the normal acceleration detection means are arranged at an end of the apparatus main body opposite to an end of the apparatus main body on the fulcrum side. The light-emitting display device according to any one of claims 1 to 9.   The light-emitting display device according to claim 1, wherein the light-emitting display device is applied to a versatile lighter.

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