JP4235395B2 - Display device and control method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display technology that realizes an interesting new visual effect rich in fresh changes, that is, a display device and a control method thereof.
[0002]
[Prior art]
In recent years, various electronic devices have spread due to advances in semiconductor technology, and various light emitting means have been used to display various information such as operating states in electronic devices. A typical example of such a light emitting means is a light emitting diode (LED), and its excellent features are small size, low cost, low power consumption and heat generation, stable operation, and durability against environmental changes. Is excellent. Conventionally, in such an LED, information is displayed by selectively or alternatively controlling ON (lighting state) or OFF (light-off state).
[0003]
By the way, in the conventional technique for controlling an LED to be ON or OFF as described above, information represented by one LED is basically digital, and a unit of digital information, that is, one bit corresponds to ON or OFF. For this reason, the degree and numerical value such as the sound level are represented by a number of LEDs arranged in a line and how far they are lit or which is lit. A typical example is a spectrum analyzer of a car audio system, which lights up one row of LEDs according to the left and right audio signal levels and one row of each frequency band to a corresponding level.
[0004]
[Problems to be solved by the invention]
However, the display as described above is a digital display that only wears the objective accuracy of information, and is an ordinary display that only indicates the degree of the object. For this reason, there is no element that makes the user feel the attractiveness or novelty of the varied visual effects that are of particular interest while listening to music, and that does not give the user a particularly high level of satisfaction. Was potentially long-awaited. In addition, this means that even if car audio systems using these display technologies are displayed at stores, no particular novelty or attention is gained, and a better sales promotion effect is also awaited. It had been.
[0005]
The present invention has been proposed in order to solve the above-described problems of the prior art. The object of the present invention is to provide a display technology that realizes an interesting new visual effect that is rich in fresh changes, that is, a display device and its display device. It is to provide a control method. Another object of the present invention is to realize a new visual effect easily and inexpensively by changing a control procedure by a microcomputer or the like without particularly changing the hardware configuration.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a display device according to claim 1 comprises: In a matrix A plurality of arranged light emitting means, a level detecting means for detecting an input signal level, a storage means for previously storing the light emitting means corresponding to each signal level as a light emitting group, and the level detecting means Based on the detected signal level, in the display device that lights the light emitting means of the light emitting group, it is determined whether the light emitting means of the light emitting group corresponding to the signal level detected by the level detecting means is turned on. A lighting determination unit that performs lighting, and a random lighting unit that randomly lights a light emitting unit existing around the light emitting unit that is being lit determined by the lighting determination unit.
[0007]
A control method for a display device according to claim 2 is based on the viewpoint of the method according to claim 1 and includes a plurality of light emitting means. In a matrix A level detection process that includes a plurality of light emitting units arranged and detects an input signal level, a storage process that stores each of the light emitting units that emit light corresponding to each signal level in advance as a light emission group, and the level detection process In the control method of the display device for lighting the light emitting means of the light emitting group based on the signal level detected by the light emitting group, the light emitting means of the light emitting group corresponding to the signal level detected in the level detecting process is turned on. A lighting determination process for determining whether or not the light emitting means is turned on, and a random lighting process for randomly lighting the light emitting means existing around the light emitting means that is being lit as determined by the lighting determination process.
[0008]
In these aspects, light-emitting means such as LEDs arranged on the surface change into various patterns according to the signal level such as the sound level, so that a variety of interesting visual effects are realized. Further, the hardware configuration is not particularly changed from the conventional one, and a new visual effect can be realized easily and inexpensively by changing the control procedure by the microcomputer or the like. The content of the light emission pattern is arbitrary. For example, the light emission pattern is determined by combining factors such as which light emitting means, how bright, how long light is emitted.
[0017]
Also By lighting the surrounding light-emitting means adjacent to the light-emitting means such as LEDs that are lit at random, an analog natural and varied visual effect that light is swaying in the wind or water is realized. Is done.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention (hereinafter referred to as “this embodiment”) will be specifically described with reference to the drawings. Note that this embodiment is realized by controlling a computer with a program. However, in this case, various implementation modes of hardware and software can be changed. Therefore, in the following description, the present invention and the present embodiment will be described. A virtual circuit block that realizes each function is used.
[0029]
[1. Constitution〕
[1-1. (Overview)
In the present embodiment, a car audio system (hereinafter referred to as “the present system”) that emits light emitting diodes, that is, LEDs, which are light emitting means arranged side by side on a plane, mainly with a light emission pattern corresponding to an input audio signal level. Called). Here, FIG. 1 is a front view of the main unit of the present system, in which a pattern display portion P is provided together with each button B and character display portion C.
[0030]
As shown in the conceptual diagram of FIG. 2, the pattern display portion P uses a total of 35 LED groups arranged in 5 × 7. In each figure of this embodiment (FIGS. 2 and 7), the blacked-out portion represents an LED that is lit brightest, and its brightness is 3. The shaded portion represents the LED that is lit darkest, and its brightness is 1. Further, white squares indicate LEDs that are extinguished.
[0031]
On the light emitting surface side of these LEDs, as shown in the cross-sectional view of FIG. 3, a matte plastic cover is provided as a light diffusing means for diffusing light, that is, a light diffusing member S, which is shown in FIG. Pattern display portion P.
[0032]
[1-2. Circuit block diagram)
Next, this system is provided with each part shown in the circuit block diagram of FIG. That is, the main microcomputer 11 is a part that controls the entire system, and the CD mechanism 12 is a part that reproduces a CD according to the control by the main microcomputer 11. Thus, the sound reproduced from the CD is output from the CD audio OUT (output) L3.
[0033]
A PLL (Phase Locked Loop) IC 13 is controlled by the main microcomputer 11 and controls the tuner 14 to receive radio. The radio sound received in this way is output from the radio audio OUT (L4).
[0034]
The electronic volume 15 is controlled by the main microcomputer 11 and is a part for switching the input selector and controlling the volume and sound quality. The CD audio OUT (L3) and the radio audio OUT (L4) input to the electronic volume 15 are switched by the input selector and output as sound from the speaker SP via the power amplifier 16.
[0035]
The display microcomputer 17 is a part that performs key input and display output. That is, the key matrix 18 is a part that receives key input, and the result is transmitted to the main microcomputer 11 via the bus 116. The main microcomputer 11 controls the CD mechanism 12, the radio system, and the electronic volume 15 according to the key input transmitted from the display microcomputer 17 as described above, and returns the result to the display microcomputer 17 via the bus 116. To do.
[0036]
The display microcomputer 17 creates display data based on the response result from the main microcomputer 11 and controls the VFD driver 19 to perform various displays on the VFD (fluorescent display tube) 110.
[0037]
Here, E-VOL OUT (L5) output from behind the input selector of the electronic volume is input to the A / D port of the display microcomputer 17 as an audio level detection signal. The display microcomputer 17 determines the LED lighting pattern based on the digital value obtained by A / D converting the signal. That is, the display microcomputer 17 controls each port of the LED horizontal output 111 and the LED vertical output 112 with this digital value, and lights each LED in the LED matrix 113.
[0038]
Specifically, there is an individual LED at the intersection of the LED horizontal output 111 and the LED vertical output 112, and when the LED horizontal output and the LED vertical output are simultaneously HIGH, the LED at the intersection is lit.
[0039]
[1-3. (Display microcomputer configuration)
The display microcomputer 17 that performs the above processing fulfills the functions of the respective parts shown in FIG. 5 by being controlled by the program (not shown). That is, the level detection unit 1 is level detection means for detecting the input signal level and includes an A / D conversion function. The pattern storage unit 2 corresponds to each signal level, and is a storage unit that stores in advance the light emission pattern of each LED. The control unit 3 is a control unit that controls the light emission state of the LED group based on the signal level detected by the level detection unit 1 and the light emission pattern stored in the pattern storage unit 2. Further, the light emission pattern used in the present embodiment is changed every predetermined time, and a process of superimposing the light emission pattern generated this time on the previous light emission pattern is performed.
[0040]
The attenuation unit 4 is a dimming unit that gradually attenuates the luminance of the emitted LED, and includes a light emission time control unit 5 that changes the light emission time of the LED in unit time. The second control unit 6 is a second control unit that causes the LEDs adjacent to the light-emitting LED to emit light randomly at a predetermined luminance.
[0041]
[2. Action)
In the present embodiment configured as described above, each LED of the pattern display section P (FIG. 1) is turned on in synchronization with the sound level of the source being reproduced. Typically, it is conceivable to increase the number of lighted LEDs as the audio output increases, and to decrease the number of lighted light as the sound output decreases. Of course, the present invention is not limited to this, and conversely, the number of lighting may be decreased as the sound level is increased, and the number of lighting may be increased as the sound level is decreased. That is, various patterns can be displayed as long as the number of lighting and the lighting location corresponding to each audio level are set. Then, when the LED is turned on at this time, a display of fluctuation described later is added to perform an analog display.
[0042]
In addition, in order to implement | achieve the display pattern according to an audio | voice level, the pattern memory | storage part 2 (FIG. 5) respond | corresponds for every signal level, respectively, and memorize | stores the light emission pattern of each LED beforehand. The level detection unit 1 detects the input signal level, and the control unit 3 detects the LED group based on the signal level detected by the level detection unit 1 and the light emission pattern stored in the pattern storage unit 2. Controls the light emission state.
[0043]
The light emission pattern used in the present embodiment is changed every predetermined time, and the control unit 3 performs a process of superimposing the light emission pattern generated this time on the previous light emission pattern.
[0044]
[2-1. LED lighting control)
Such a display pattern is realized by controlling lighting of individual LEDs, but each LED is controlled by direct matrix driving by the display microcomputer 17. That is, in the matrix driving method, the LED horizontal output 111 is scanned, and the LED is turned on by controlling the corresponding port of the vertical output 112.
[0045]
In addition, each LED is turned on with different brightness, and further, the attenuation unit 4 gradually attenuates the luminance of the LED once emitted, but such brightness control thins out the lighting timing of the LED. To do. As a specific example, the brightness attenuation process by the attenuation unit 4 is performed by the light emission time control unit 5 by gradually changing the light emission time in the unit time of the LED.
[0046]
Here, an example of the control timing is shown in FIG. This figure shows only a part of the LED matrix for simplification. LED vertical output 0 (Note 1) turns on LED of vertical 0-horizontal 0 for LED horizontal output 0-3. The waveform in the case of performing is shown. Further, LED vertical output 1 (Note 2) shows a waveform in the case of lighting vertical 1-horizontal 1 and vertical 1-horizontal 2 LEDs. While the vertical output and the horizontal output are HIGH at the same time, the LED at the intersection is lit.
[0047]
Further, in the brightness control example (Note 3) shown below, the brightness is adjusted by thinning out the timing (length of time) when the LED is lit per unit time. In the example shown in the figure, the lighting becomes darker every time the lighting timing is changed from 3/3 → 2/3 → 1/3 → 0/3. In this example, since the time cycle is sufficiently short, stable continuous lighting with different brightness is observed due to the afterimage phenomenon in the visual recognition of the user's retina and the like, and the brightness 3 is the brightest here. A darkness of 0 is the darkest off state.
[0048]
[2-2. (Control method of fluctuation display)
Moreover, the 2nd control part 6 displays fluctuation by making each surrounding LED adjacent to LED currently light-emitting light-emit randomly with predetermined brightness | luminance. This lighting is performed with the darkest brightness by the brightness control. Random lighting is switched to another random lighting pattern at an early cycle. By performing this control, the LED appears to be shaking. A display example in this case is shown in FIG.
[0049]
In this example, (a) shows an originally lit LED, (b) shows a state where a fluctuation is added, (c) shows a state where a fluctuation of another pattern is further added after 8 ms, (d) to (f) ) Shows a state in which different fluctuation patterns are added after 8 mS.
[0050]
[2-3. (Create display pattern according to level)
Next, FIG. 8 shows a flowchart of processing for creating a display pattern according to the sound level as described above. This process is repeatedly invoked at 100 mS cycles using a timer and executed from step 1.
[0051]
Here, each time point of each LED, that is, the current lighting state is stored in the TBL (FIG. 9) as a predetermined storage area as display data. In the process of FIG. 8, first, the display data TBL currently displayed is displayed. If the value of (FIG. 9) is 1 to 3, -1 is set (step 1). By this process, the brightness of the previous display content is reduced by one level.
[0052]
Subsequently, A / D conversion processing is performed on the input audio level to detect the current audio level (step 2). In this process, the input value of the A / D port of the display microcomputer 17 is A / D converted, and the result value of A / D conversion increases as the input audio level increases. Display data corresponding to the obtained A / D value is obtained (step 3). Here, as shown in FIG. 10, the light emission pattern corresponding to the sound level is stored in advance in the pattern storage unit 2 in the form of display data 1 to 6 used for display, and is selected according to the sound level.
[0053]
For example, when the A / D value is 0, display data 1 is used, and a display table with a large display table number is used in proportion to the A / D value. The display data 1 to 6 may be created as a ROM table built in the display microcomputer 17 as an implementation. In the table of each display data shown in FIG. 10, the value 3 is a value that makes the LED light up most brightly, and 0 is a value that turns off the light as in the other cases.
[0054]
The display data thus obtained is substituted into the display data TBL (FIG. 9) (step 4 in FIG. 8). This substitution is performed by, for example, a logical operation that ORs each value so as to be superimposed on the current display data TBL. As a result, when the light emission pattern is changed every predetermined time, visual processing such as superimposing the light emission pattern generated this time on the previous light emission pattern is realized, and the change in the light emission pattern becomes smooth. The display data TBL may be prepared as a RAM table built in the display microcomputer 17 as a mounting. The series of processes shown in FIG.
[0055]
[2-4. (Addition of fluctuation)
Next, the flowcharts of FIGS. 11 and 12 are integrated by the connector 1 and show a processing procedure for adding a fluctuation display to the light emission pattern. This process is an 8 mS timer process, and is called repeatedly every 8 mS. In this processing procedure, based on the display data as shown in FIG. 13A obtained based on the result of A / D conversion by the procedure of FIG. A predetermined fluctuation value FH (represented as “F” in FIG. 13B) is added.
[0056]
In this procedure, first, the process of erasing the fluctuation value FH previously added to the display data TBL (FIG. 9) and (step 11) the following four parts, that is, steps 12 to 18, steps 19 to 25, and step 26. To 32 and steps 33 to 39, each of which is a process of adding a fluctuation value FH to “left”, “right”, “upper”, and “lower” of the lighting part.
[0057]
That is, first, a random value R is obtained (step 12), and the counter 1 is initialized to 0 (step 13). Here, the “random value R” is a bit string value expressed in hexadecimal notation. For each random value R obtained in each step 12, 19, 26, 33 described later, each subsequent step 14 21, 21, 35 of “R BITi = 1?”, The LED of which position is lit as a fluctuation display depending on the result of determining whether the i-th bit is “1” (standing) or not. Used to select
[0058]
That is, in the series of processing of steps 12 to 18, first, whether the random value R's BITi obtained in step 12 (i is a counter value, BITi means the value of the i-th bit, the same applies hereinafter) is 1 or not. (Step 14). If it is 0, the following steps 15 and 16 are skipped and the process proceeds to step 17. However, if it is 1, the row Yi of display data BL (FIG. 7) (i is a counter value, and Yi is the i-th number. (The same applies hereinafter) is checked from X0 to X6 to determine whether there is a lighting location (step 15). If there is a lighting location, the value of FH, which is a fluctuation value, is substituted on the left side of the lighting location of the found display display overnight BL (step 16). If there is no lighting location, step 16 is skipped. The
[0059]
In step 17, the counter i is incremented by 1, and it is determined whether or not the counter exceeds 4. The value of 4 is the maximum value in the row of the display data TBL, and if it is 4 or less, the process returns to step 14, but if it exceeds 4, the process proceeds to step 19.
[0060]
The subsequent processing is the same as the above processing, and in steps STEP 19 to STEP 25, processing for adding the fluctuation value FH “to the right side” of the lighting position of the display data BL is performed. Similarly, in steps 26 to 32, the process of adding the fluctuation value FH “upper” of the lighting position of the display data BL is performed, and in steps 33 to 39, the fluctuation value FH of “lighting” of the lighting position of the display data BL is added. The process is performed, and the series of processes is completed.
[0061]
[2-5. LED matrix lighting
FIG. 14 shows a flowchart of a processing procedure for turning on the LED matrix based on the display data created as described above. This process is a 1 mS timer process, and is called repeatedly every 1 mS. Further, it is assumed that an LED row storage memory Ycount and a brightness control memory Dcount are used for working data storage.
[0062]
In this process, first, the column outputs 0 to 6 that are currently lit are turned off (step 41), the LED row counter Ycount is incremented by 1 (step 42), and it is determined whether or not Ycount has exceeded 4 (step 42). 43). This value of 4 is the maximum value in the row of the display data TBL, and if it is within 4, skips steps 44 to 47 and proceeds to step 48. If it is determined in step 43 that Ycount exceeds 4, the LED row counter Ycount is initialized to 0 (step 44), and the brightness control counter Dcount is incremented by 1 (step 45).
[0063]
Then, it is determined whether or not Dcount exceeds 3 (step 46). The value 3 is the maximum value of brightness control, and when it exceeds 3, Dcount is reset to 0 (step 47).
[0064]
Thereafter, the LED row corresponding to the Ycount value is output (step 48). That is, when Ycount is 0, the LED horizontal 0 in FIG. 2 is output. Thereafter, the column value corresponding to the Ycount value of the display data TBL (FIG. 9) is obtained (step 49). That is, if Ycount is 0, the value of the Y0 column of the display data TBL (FIG. 9) is obtained. The fluctuation value FH of the value thus obtained is replaced with 1 (step 50). The value of 1 is a value that lights the LED darkest.
[0065]
Then, the value obtained by this replacement is compared with the value of Dcount, and a column corresponding to a place where a value larger than the Dcount value is entered is output (step 51). That is, the LED vertical 0 and LED vertical 1 output in FIG. 2 is performed. Thus, a series of processing ends. FIG. 2 shows an example in which the display data TBL of FIG. 13B to which fluctuation is added is displayed by such a processing procedure.
[0066]
[3. effect〕
As described above, in the present embodiment, the light emitting means such as LEDs arranged on the surface change into various patterns according to the signal level such as the sound level, so that a variety of interesting visual effects are realized. . Further, the hardware configuration is not particularly changed from the conventional one, and a new visual effect can be realized easily and inexpensively by changing the control procedure by the microcomputer or the like. Although the content of the light emission pattern is arbitrary, for example, it is determined by combining factors such as which light emitting means, how bright, how long light is emitted.
[0067]
In this embodiment, the emitted light does not suddenly disappear mechanically, but the brightness gradually attenuates, giving the user a natural and organic impression like natural light emission such as animal light emission. It has the advantage of providing interesting visual effects and a sense of security that are both fresh and varied. The attenuation may be up to zero brightness or a predetermined level of appropriate darkness.
[0068]
Further, in the present embodiment, when the light emitting means is gradually darkened, it is possible to realize light attenuation with a simple configuration by changing the light emission time per unit time without changing the drive power. In particular, if the time cycle is sufficiently short, depending on the type of light emitting means, the actual light emission gradually attenuates or the afterimage phenomenon on the user's visual perception, it looks smooth attenuation and is excellent in elegant visual effects, If the time cycle is relatively long, there is also an advantage of creating a fascinating and unique atmosphere that fades and fades while blinking.
[0069]
In the present embodiment, the surrounding light-emitting means adjacent to the light-emitting means such as the lit LED are lighted at random, so that the natural light is rich and varied in such a way that the light is fluctuated by wind or water. An interesting visual effect is realized.
[0070]
Further, in this embodiment, not only the light emission pattern changes every predetermined time, but also at the time of switching, it does not change suddenly digitally. Since the light-emitting pattern is converted so as to overlap, there is an advantage that it gives a natural and organic impression like the light emission of the natural world such as the light emission of animals, and gives the user an interesting visual effect and a sense of security that are varied and fresh.
[0071]
Further, in this embodiment, the light emission pattern changes in accordance with the audio signal level such as CD performance or FM radio viewing, so that the natural and fresh visual effects unique to the present invention and the auditory effects from the ears. The synergistic effect of this will bring a viewing experience that will raise your spirit and give you a deep satisfaction.
[0072]
Further, in this embodiment, by providing light diffusing means such as semi-transparent or smoke-processed plastic cover on the light emitting surface side of the light emitting means such as LED, that is, the side visible to the user, a large number of scattered light sources can be naturally generated. It looks like a united illuminant and gives a natural and organic impression like the luminescence of animals such as animals, giving the user an interesting visual effect and a sense of security that are varied and fresh.
[0073]
In this embodiment, while using LEDs (Light Emitting Diodes) that are inexpensive, consume less power, generate less heat, are stable in operation, are resistant to environmental changes, and have excellent durability, they are arranged in a plane and the brightness is adjusted. By controlling in stages or adding expressions such as fluctuations, it is possible to obtain an excellent visual effect due to a new analog display expression that has not existed before.
[0074]
[4. Other embodiments]
In addition, this invention is not limited to the said embodiment, Other embodiments which are illustrated next are included. For example, specific light emission modes including addition of light emission patterns and fluctuations can be changed as appropriate. In addition to synchronizing with the sound level, for example, a specific pattern can be displayed by key operation. It is. Various arrangements of LEDs, such as a honeycomb shape, a concentric circle shape, and a radial shape, are conceivable. The light emitting means is not limited to LEDs, and VFD (fluorescent display tube), organic EL (electroluminescence), and the like can be used.
[0075]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a display technology that realizes an interesting new visual effect rich in fresh changes, that is, a display device and a control method thereof.
[Brief description of the drawings]
FIG. 1 is a front view of a main unit in an embodiment of the present invention.
FIG. 2 is a conceptual diagram showing the arrangement of LEDs in an embodiment of the present invention.
FIG. 3 is a cross-sectional view showing the positional relationship between an LED and a light diffusing member in an embodiment of the present invention.
FIG. 4 is a circuit block diagram of a main unit in the embodiment of the present invention.
FIG. 5 is a functional block diagram showing each functional unit realized by the display microcomputer according to the embodiment of the present invention.
FIG. 6 is a timing chart showing control timing in the embodiment of the present invention.
FIG. 7 is a view showing a display example of LEDs in the embodiment of the present invention.
FIG. 8 is a flowchart showing a processing procedure for creating display data for pattern display according to the sound level in the embodiment of the present invention.
FIG. 9 is a conceptual diagram showing a storage area TBL that stores the lighting state of each LED as display data in the embodiment of the present invention.
FIG. 10 is a conceptual diagram showing display data corresponding to each light emission pattern corresponding to each sound level in the embodiment of the present invention.
FIG. 11 is a flowchart (first half) showing a processing procedure for adding a fluctuation display to a light emission pattern in the embodiment of the present invention.
FIG. 12 is a flowchart (second half) showing a processing procedure for adding a fluctuation display to the light emission pattern in the embodiment of the present invention.
FIG. 13 is a conceptual diagram showing display data contents before (a) and after (b) addition of fluctuation in the embodiment of the present invention.
FIG. 14 is a flowchart showing a processing procedure for turning on each LED based on created display data in the embodiment of the present invention.
[Explanation of symbols]
B ... button
C ... Character display
P ... Pattern display section
S: Light diffusing member
11 ... Main microcomputer
12 ... CD mechanism
13 ... PLL IC
14 ... Tuner
15 ... Electronic volume
16 ... Amplifier
17 ... Display microcomputer
18 ... Key matrix
19 ... VFD driver
110 ... VFD
111 ... LED horizontal output
112 ... LED vertical output
113 ... LED matrix
L3, L4, L5 ... Output line or its signal
116 ... Bus

Claims (2)

A plurality of light emitting means arranged in a matrix, a level detecting means for detecting an input signal level, a storage means corresponding to each signal level and storing in advance the light emitting means for emitting light as a light emission group; and the level In the display device for lighting the light emitting means of the light emitting group based on the signal level detected by the detecting means,
Lighting determination means for determining whether the light emitting means of the light emitting group corresponding to the signal level detected by the level detecting means is turned on;
Random lighting means for randomly lighting light emitting means existing around the light emitting means being lit determined by the lighting determining means. A plurality of light emitting means arranged in a matrix, and a level detecting process for detecting an input signal level; a storage process for previously storing the light emitting means corresponding to each signal level as a light emitting group; In the control method of the display device for lighting the light emitting means of the light emitting group based on the signal level detected by the level detection process,
A lighting determination process for determining whether the light emitting means of the light emitting group corresponding to the signal level detected in the level detection process is lit;
And a random lighting process for randomly lighting the light emitting means existing around the light emitting means being lit, which is determined by the lighting determination process.

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