JPS6032676Y2 - musical score display device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a musical score display device that displays musical scores in dots.

Conventionally, some musical score display devices display a musical score in a dot matrix based on key performance data and musical score data from an external recording device.

Figure 1 shows an example of this musical score display device, with a keyboard 1
The musical score is displayed in a dot matrix by playing the keys or using a card 2 on which musical score data is recorded in advance.

That is, when a key is pressed on the keyboard 1, the key press detection circuit 3
outputs key information indicating the pitch corresponding to the key and note length data indicating the note length to the display control circuit 4.
outputs dot information indicating notes, rests, change signals, etc. to the display 5 based on the input key information and note length data.

Similarly, when the card 2 is set in the reading circuit 6, the reading circuit 6 reads musical score data from the magnetic tape 2a attached below the card 2, outputs this musical score data to the display control circuit 4, and controls the display. Based on the input musical score data, the circuit 4 outputs dot information indicating notes, rests, change marks, etc. to the display 5 in the same manner as described above.

The display 5 controls appropriate liquid crystal cells based on this dot information, and displays musical notes, rests, change symbols, etc. in a dot matrix.

Note that a staff 5a is printed on the display 5 in advance.

FIG. 2 shows an example of musical notes, rests, and change symbols displayed in a dot matrix as described above.

As is clear from FIG. 2, each liquid crystal cell has a square shape.

Incidentally, in a dot matrix display, the larger the number of dots, the clearer the display, but on the other hand, there is a problem in that the larger the number of electrodes, the more complex their control becomes.

This invention was made in view of the above-mentioned circumstances, and the purpose is to provide a musical score display device that can reduce the number of dots, simplify musical score display control, and at the same time maintain the same clarity and ease of viewing musical scores. .

In order to achieve the above object, this invention arranges two types of display elements with different shapes alternately in rows or columns, or arranges three types of display elements with different shapes in rows and columns, and The musical score is displayed in a dot matrix using the arranged display elements.

In other words, the number of display elements (dots) is reduced by combining with a display element having a larger display area within a range that does not impair the clarity of the musical score.

This invention will be described in detail below with reference to the accompanying drawings.

FIG. 3a shows an embodiment of the musical score display device according to the invention, and this display device 10 displays notes and rests in a matrix form on a liquid crystal display.

Note that the staff 11 is printed on the display device 10 in advance.

Further, FIG. 3 is an enlarged view of the diacritic note displayed on the display device 10 and its vicinity.

As is clear from FIG. 3, in the display device 10, square liquid crystal cells 12 and rectangular liquid crystal cells 13 having an area approximately twice that of the liquid crystal cells 12 are arranged alternately in columns.

FIG. 4 shows musical notes, rests, and change symbols displayed by this display device 10, and is designed to be compared with the conventional dot-macho display (see FIG. 2).

Comparing the conventional dot matrix display and the dot matrix display according to this invention, it can be seen that this invention requires fewer liquid crystal cells and can provide the same clarity.

This allows a control device (not shown) to control the liquid crystal cell to
can be simplified.

Further, FIG. 5 shows another embodiment of the musical score display device according to this invention, and this display device 20 has three types of liquid crystal cells each having a different shape arranged in rows and columns.

That is, the display device 20 includes a square liquid crystal cell 21,
A rectangular liquid crystal cell 22 having an area approximately twice that of the liquid crystal cell 21 and a square liquid crystal cell 23 having an area approximately twice that of the liquid crystal cell 22 are arranged in a matrix.

Note that, as is clear from the figure, liquid crystal cells of the same shape are arranged so as not to be adjacent to each other.

The display device 20 also includes the same musical notes, rests, and
A change symbol is displayed.

The display device 20 having such a configuration is similar to the display device 1 described above.
Even fewer liquid crystal cells are required than 0, yet the same clarity can be obtained.

Note that the shape and combination of the liquid crystal cells are not limited to the above embodiments, and may be, for example, circles and oblongs arranged alternately in each column as shown in FIG.

Furthermore, the display element is not limited to a liquid crystal cell, but may also be a discharge cell, a light emitting diode, an electroluminescence display, a CRT, etc., which serve as dots in a discharge type panel display.

As explained above, according to this invention, it is possible to reduce the number of display elements that form dots while maintaining clarity and legibility equivalent to conventional dot matrix displays, which has the advantage of facilitating display control. be.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an outline of a musical score display device, Fig. 2 is a dot matrix display of notes, rests, and change marks by a conventional musical score display device, and Fig. 3a is a diagram of a musical score display device according to this invention. A plan view showing one embodiment, FIG.
A partially enlarged view of Figure a, Figures 4 and 5 are notes, rests, and change symbols displayed in a dot matrix by the musical score display device according to this invention, and Figure 6 is a partial enlarged view of the musical score display device according to this invention. This is another example of musical notes displayed in a dot matrix. 1...Keyboard, 2...Card, 2a...
...Magnetic tape, 3...Key press detection circuit, 4
...Display control circuit, 5...Display device, 6
...Reading circuit, 10.20...Display device, 11...Staff, 12.13, 21゜22
．． 23...Liquid crystal cell.

Claims (4)

[Scope of utility model registration request] (1) A musical score display device in which display elements of at least two different shapes are arranged in rows and columns, and the display elements display a musical score in a dot matrix. (2) The musical score display device according to claim (1), wherein the display element has two shapes: a square and a rectangle. (3) The shape of the display element is a square and two shapes of this square.
The musical score display device according to claim (1), which is registered as a utility model, has three shapes: a rectangle having an area twice that of the rectangle, and a square having an area twice that of the rectangle. (4) The musical score display device according to claim (1), wherein the display element is a liquid crystal cell.