JPS59166994A - Electronic type entry display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a "kameko" system in which desired characters, figures, symbols, etc. can be arbitrarily written by hand, and the written contents can be displayed immediately, like on a notebook or a blackboard. The purpose of the present invention is to provide a writing/displaying device that is easy to use.

Such a device has not yet been put into practical use.

However, their uses are wide-ranging, such as small ones for memos and large ones to replace blackboards, and they are thought to be in high demand.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an electronic fill-in and display device as described above.

The present invention will be explained below based on the illustrated embodiments. This embodiment is used in place of a small notebook. 1
00 is an entry and display section, where an entry is made using a writing tool (not shown) consisting of a long, narrow, rigid forest with a tapered tip, and the entry is displayed as is. A sinch group 101 is attached along with this entry and display section 100. The R button of this swift J+'f is a reset switch, and the buttons indicated with numbers from 1 to 10 are page selection switches, and the page of the pressed number is entered and displayed on the display section 100.
appears in In this embodiment, 10 pages can be selected. This selection switch is one switch, and each time you press it, the
It may be configured so that the pages change one by one. Alternatively, the number of pages may be increased, and numbers from 10 buttons yLvQ to 9 may be written, and pages may be selected by a combination of the numbers. The OFF button is an erase switch for erasing what is written and displayed on the display section 100. This erase switch merely erases the display and does not erase the stored contents. The last E button is a lock switch, and is used when the information you have written is partially incorrect and you want to erase only that part (also known as the stored content). By pressing this E button and tracing the displayed area on the display section, it is erased. In other words, it corresponds to an eraser when used with a pencil, and a blackboard wipe when writing on a blackboard. These switches 11i.

The location of each button is arbitrary and may be separated from the entry and display section 100.

A block diagram of the electrical circuit of this embodiment is as shown in FIG.
08, a partial erase selection circuit 109.

The writing detection circuit 105 is as shown in FIG. 6 vertically
Four vertical lines 110 are arranged at equal intervals, and 80 horizontal lines 111 are arranged at equal intervals laterally. The vertical lines are connected to the input of the semiconductor switch 112 as a set of four trees. Both the vertical and horizontal lines are made of a transparent conductor, such as Nesacoat, and are formed into long, thin, straight lines, and an insulating transparent sheet is interposed between the vertical and horizontal lines to insulate them and at the same time to insulate them. By pressing a hole from above with a long and thin object at the intersection of the two lines, the intersection points of both lines come into contact with each other. Sixteen semiconductor switches 112 are prepared, and two of them are used as one set. The output of the semiconductor switch 112 is connected to eight data lines 113 which are connected to the interface element 104. On the other hand, the horizontal lines 111 are connected to the output of one decoder 114 as a set of 16 lines. Five decoders are available. The input to each decoder 114 is connected to eight address lines 115 which are connected to address selection circuit 107.

As described above, 80 horizontal lines 114 are provided, and the lowest line 1lla is connected to the input of the shift register 116. The output of this shift register 116 is connected to the signal line of the semiconductor switch 112, and the semiconductor switches are sequentially switched. As described above, since the semiconductor switches are arranged in pairs, one output line is connected to the signal lines of the two semiconductor switches, and two semiconductor switches are switched in sequence.

A signal is connected to the address line 115 via an interface element IQ4 so that signals are constantly applied from the CPU 102 to the horizontal line 111 in order from the top to the bottom line 111a via the decoder 114. There is. When a signal is applied to the lowermost horizontal line 111a, it is applied to the shift register 116 to operate the next semiconductor switch. By repeating this operation eight times, the entire display section appearing on the writing and display section 100 can be scanned. In this embodiment, the time required for this -times of scanning is 20f]1. It is about s. If you write on the surface of the display unit 100 with a stick-shaped writing instrument during this scanning,
Due to the pressure, the two lines come into contact through a hole provided in the insulating sheet at the intersection, and the data is transferred to the semiconductor switch 11.
2. CPU 102 via interface circuit 104
be taken in. The result of calculating the data and the data stored in the memory 103 is sent again to the display unit via the interface circuit 104, and at the same time, the same data is stored in the memory 103. The time it takes to write and scan the entire display section 100 is about 20 m5, so even if you write at a fairly high speed, it can be followed sufficiently. The information entered and written in the display section 100 in this way is stored in the memory 10.
3 can be stored.

Next is the display circuit 106, which is substantially the same as the writing detection circuit as shown in FIG. Similarly, it has a vertical line 120 and a horizontal line 121, the vertical line is connected to a semiconductor switch 122, and a data line 123 connects the CPU 1.02 through an interface circuit 104.
The same data as the data stored in the memory 103 is given from the memory 103. The horizontal line 121 is connected to the decoder 12 as described above.
4, respectively, and are connected to the CPU through address lines 125.
An address signal is given from i O2. The vertical and horizontal lines are scanned in the same manner.The decoder 124 scans the horizontal line 121 from the second stage to the lowest stage, and the shift register 126 scans the semiconductor switch 12.
2 and repeats horizontal line scanning to scan the entire writing and display area lOO. In the entry display section 100 of this embodiment, 5120 liquid crystal dots are arranged at positions corresponding to the intersections of each line. As shown in FIG. 5, each liquid crystal dot is connected to be driven by a transistor 127 which is turned on when a signal is received on both lines.

The operation of this embodiment having the structure described in is as follows. First, when one of the page selection buttons is pressed, the page selection circuit 108 reads out the corresponding memory in the memory 103. When a page is selected, if anything has been previously entered and stored, it will be displayed in the entry and display section 100. If the page does not store anything, nothing will appear on the entry and display section 100. In any case, scanning is being performed. When writing with a rod-shaped object from above the writing and display section 100, the point pressed by the tip of the rod at the intersection of both lines 110 and 111 of the writing detection circuit 105 is brought into contact with the hole in the insulating sheet. Contact or non-contact information of each intersection point is sent to the CPU 10.2 and calculated in the CPU with the data in the memory 103.
The results are stored in memory. At the same time, the information is sent to the vertical and horizontal lines of the display circuit, and the writing detection circuit 105
The transistor 127 connected to the vertical line 120 and the horizontal line 121 corresponding to the intersection brought into contact is turned on, and the liquid crystal connected to this transistor and arranged at the intersection is driven. Since the liquid crystal dots placed at all nine intersections contacted by the writing tool are driven, what is written is displayed as is.

As described in 1- below, according to this embodiment, the entry and display section 10
The information entered in 0 with the filling tool is displayed and simultaneously stored in the memory 103. When you select a page to use this embodiment, if the previously stored information is displayed and it is unrelated to what you are about to fill in, press the R button in the switch group 101 to display the page. The contents stored in the memory 103 are erased, and nothing is displayed on the entry/display section 100. You can then fill it out. If you want to partially erase, press the E button of the switch group 101 to activate the partial erase selection circuit 109, and when you touch the intersection of each line of the writing detection circuit 105 to the memory 103, a touch signal is generated. becomes an erase signal and erases the memory contents. As mentioned above, when you want to see what you have written and memorized, you only need to select the page for condolence.

As described above in detail, according to the present invention, it is possible to electrically write and display information. In this embodiment, an insulating sheet with holes is interposed between the vertical line and the horizontal line of the writing detection circuit 105, but the intersection points can be brought into contact when pressed with a long and thin object from above by other means. Any kind of thing is fine.

[Brief explanation of drawings]

FIG. 1 is a plan view of the embodiment of the present invention, FIG. 2 is a block diagram of the electric circuit of the embodiment of the present invention, FIG. 3 is a block diagram of the writing detection circuit of the embodiment described above, and FIG. FIG. 5 is a block diagram of the display circuit, and FIG. 5 is a circuit diagram for lighting a light emitting diode. 100: Entry and display section, 101: Switch group, 102
: CPU, 103: Memory, 104: Interface circuit, 105/Writing detection circuit, 110.120: Vertical line, 111.121: Horizontal line. Patent Applicant Sunpac Co., Ltd. Agent Patent Attorney Masayuki Konno Figure 1 Figure 5 Japanese Patent Publication No. 59-166994 (4) 2nd cause +06

Claims (1)

[Claims] A vertical line and a horizontal line made of transparent four-electrode thin wires are placed one above the other through a thin transparent insulating sheet, and a hole is provided at the intersection of the vertical and horizontal lines of the insulating sheet at the tip of the elongated line from above. When pressed, both lines come into contact through the hole, and an entry detection circuit sends the contact information to the memory, and when the entry detection circuit obtains information from the contact of both lines, it detects the contact point and To destroy the display circuit with light emitting elements that light up at the same location! 1-
1I electronic entry and display device