WO1996003688A1

WO1996003688A1 - Structure of input portion in pen computer

Info

Publication number: WO1996003688A1
Application number: PCT/JP1995/001440
Authority: WO
Inventors: Yoshifumi Miyamoto
Original assignee: Sun Pionnier Co., Ltd.
Priority date: 1994-07-27
Filing date: 1995-07-20
Publication date: 1996-02-08

Abstract

A computer capable of recognizing handwritten characters, which comprises a display screen covered with a transparent, soft and smooth plate of predetermined thickness, through which handwritten characters can be entered with an input pen. In this way, the degree of recognition can be improved by simple means without changing the structure of existing pen computers.

Description

Description Structure of input unit in pen computer

This invention relates to so-called Penkon Pugh evening improvement of forming with an input pen input on the display screen, more particularly, _c background on the structure of the input portion or the display screen and an input pen in Penco Npyu evening with handwriting recognition Technology

The pen computer has a built-in CPU, RAM, and ROM, and consists of a main unit with a display screen on its surface and an input pen for inputting information on this display screen. It has become thinner and smaller due to the progress of the technology, and has been spreading rapidly in recent years.

However, the recognition of handwritten characters input with the input pen at present is not always good, and the operation requires skill. Disclosure of the invention

The inventor of the present invention divided the current pen computer structure in order to improve the degree of recognition, and obtained the finding that it was attributable to slippage of the input pen to one third. is there.

The present invention has been made in view of the above circumstances, and has a new input unit structure capable of improving the degree of recognition with simple means without changing the current structure of a desktop computer, that is, a display screen unit and an input pen. The purpose is to provide a structure.

The structure of the display screen section in the pen computer of the present invention employs the following configuration in order to achieve the above object. That is, in a pen computer that has a handwritten character recognition function and allows a handwriting input on the display screen using an input pen, a transparent soft plate with a smooth surface and a predetermined thickness is placed on the display screen. With this configuration, handwriting input is performed with the input pen via the transparent soft plate. An appropriate pen pressure is given to the input pen by the elasticity of the transparent soft plate, and the input is performed without slip.

Also, since the surface of the transparent soft plate is smooth, there is no jump in the input.

Next, the structure of the input pen in the pen computer according to the present invention employs the following configuration to achieve the above object.

That is, in a pressure-sensitive pen computer that has a handwritten character recognition function and a handwriting input is performed on the display screen with an input pen, the input pen is formed with at least a soft tip tip at the tip. Features. A handwriting input is performed with a predetermined pen pressure on the display screen with an input pen. Due to the elasticity of the pen tip, a moderate resistance to the rigid display screen is given, and input without slips is made on the display screen, and there is no jump in input.

On the display screen, the handwriting is pressure-sensitive detected in the evening bullet layer, and the characters and figures are displayed through the predetermined character and figure recognition processing. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an overall perspective view showing an embodiment of the structure of an input unit in a pen computer according to the present invention.

Figure 2 is an enlarged sectional view of the display screen.

FIG. 3 is an overall perspective view showing another embodiment of the structure of the input unit in the pen computer of the present invention.

Fig. 4 (a) is an overall side view of the input pen.

Fig. 4 (b) is an enlarged sectional view of the tip. FIG. 5 is an overall perspective view showing still another embodiment of the structure of the input unit in the pen computer of the present invention.

Figure 6 shows the configuration of the tip of the input pen. BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the structure of the input unit in the pen computer of the present invention will be described with reference to the drawings.

(First Embodiment)

1 and 2 show a display screen portion in a pen computer according to an embodiment of the present invention, and show an example of application to a notebook type combination display. That is, FIG. 1 shows the entire configuration, and FIG. 2 shows the configuration of the main part.

The overall configuration of a pen computer C to which the present invention is applied will be described with reference to FIG.

The pen computer C is composed of a main body 1 having a display screen, an input pen 2 for inputting to the display screen of the main body 1, and a transparent soft plate 3 arranged on the display screen of the main body 1. Become.

The display unit of the main unit 1, the input pen 2, and the transparent soft plate 3 constitute an input unit.

The main body 1 has a built-in processing and storage device for CPU, RAM, and ROM, and a display screen 10 of a liquid crystal display is arranged on the surface thereof. Display screen 10 is connected to CPU via the LCD drive. R OM has a built-in program that performs handwritten character recognition processing. It follows handwriting input in conjunction with the CPU and performs processing to output specified characters.

The input pen 2 employs an electromagnetic induction method, and a magnetic pen point tip 12 is attached to the tip. The nib tip 12 is hard and smooth. This input key 2 is pressed against the display screen 10 and desired characters are input to the display screen 10. The structure of the input unit will be described with reference to FIG.

The display screen 10 includes a liquid crystal display section 14 and a tablet section 15.

The liquid crystal display section 14 is composed of a liquid crystal plate and a polarizing plate sandwiching the liquid crystal plate from above and below. The liquid crystal plate is formed by sealing liquid crystal between glass substrates provided with transparent electrodes, and applying a voltage to the electrodes. The light transmittance is changed according to the degree of application, and the light is intercepted and transmitted by a combination of the horizontal directional plate and the vertical directional plate using a polarizing plate (analyzing plate). A reflection plate or a backlight is provided on the back surface of the liquid crystal display unit 14. The tablet part 15 on which the side lights can be placed instead of the backlight is a vitreous insulated substrate in which wires of magnetic material constituting coordinate lines are embedded vertically and horizontally at regular intervals. Mainly. The tablet section 15 sees through the display of the lower liquid crystal display section 14. The substrate is made of glass epoxy resin or acryl resin having transparency. Therefore, the tablet portion 15 is hard and has a smooth surface.

The transparent soft plate 3 is formed of a synthetic resin body that has a flat plate shape with a predetermined thickness and maintains appropriate elasticity. A thickness of about 0.5 to 1.0 mm is usually sufficient, but the thickness is not limited. Such materials include vinyl chloride resin, vinyl chloride acetate resin, acetyl cellulose and other suitable materials. Further, synthetic rubber (for example, butadiene styrene copolymer, nitrile rubber, and petroleum rubber) can be used.

That is, a plasticizer is added to the vinyl chloride resin to obtain a desired elasticity. Further, by giving an additive to the vinyl chloride resin, an appropriate cloud (mat) can be given.

The transparent soft plate 3 is attached to the display screen 10 with an adhesive or simply placed without using an adhesive. In addition, in the sticking mode, a mode in which they are integrally joined, or a mode in which they can be separated by using an easily separated adhesive can be used. The input and display of handwritten characters is performed as follows with the input unit consisting of the above configuration.

The transparent soft plate 3 is placed on the display screen 10, and an input field for character input is displayed at a predetermined position on the display screen 10.

Using the input pen 2, desired characters are written in the input 櫊 from above the transparent soft plate 3.

The transparent soft plate 3 gives an appropriate resistance to the input pen 2 to obtain a writing pressure feeling. The tablet unit 15 senses the movement of the input pen 2 by the induced potential generated on the wire, sends the voltage change signal to a predetermined arithmetic processing unit, performs handwritten character recognition processing, and displays this signal on the liquid crystal display unit 1. Display in 4.

The use of the transparent soft plate 3 gives the input pen 2 an appropriate pen pressure feeling and prevents the input pen 2 from slipping. This can significantly improve the degree of recognition _c. That is, according to the experiments performed by the present inventors, the degree of recognition was 74% when the transparent soft plate 3 was not used. On the other hand, by using the transparent soft plate 3, the recognition degree was increased to 92%.

In addition, by using the transparent soft plate 3, the user feels easy to write and is easy to use. Further, the surface of the evening tablet portion 15 is protected, so that the expensive display portion can be used for a long time. The transparent soft plate 3 is inexpensive and easy to replace. By using the transparent soft plate 3 provided with cloudiness, reflection can be prevented and it becomes easy to see.

In the present embodiment, the display screen 10 has a mode in which the tablet section 15 is provided on the liquid crystal display section 14. However, the tablet section 15 is provided as a lower layer, and the liquid crystal display section 14 is provided thereon. There is no essential difference even in the mode of arrangement. Also in this case, the surface of the liquid crystal display section 14 is made of a glass material to protect the polarizing plate, and the glass surface forms a hard smooth surface.

According to the structure of the display screen unit in the pen computer according to the present embodiment, The use of a light and soft board gives the pen an appropriate feel of pressure and prevents the pen from slipping. As a result, the degree of recognition can be significantly improved.

Also, by using this transparent soft plate, the user feels easier to write and becomes more user-friendly. Further, the surface of the display screen portion is protected, and the expensive display portion can be used for a long time. Moreover, the transparent soft plate is inexpensive and easy to replace.

By using a transparent soft plate with a cloud, it is possible to prevent reflection and make it easier to see.

(Second embodiment)

3 and 4 show an input pen in a pen computer according to another embodiment of the present invention, and also shows an example of application to a notebook computer. That is, FIG. 3 shows the entire configuration, and FIG. 4 shows the configuration of that part. The pen computer C includes a main body 1 having a display screen, and an input pen 2 for inputting to the display screen of the main body 1.

The display screen of the main unit 1 and the input pen 2 constitute an input unit.

The main body 1 has the same configuration as the previous embodiment, and has a display 10. The display unit 10 includes a liquid crystal display unit 14 and a tablet unit 15 as in the previous embodiment.

The tablet portion 15 is a so-called pressure-sensitive position detection plate that senses a position with pressure. Mainly an insulating substrate. The tablet section 15 sees through the display of the lower liquid crystal display section 14. The substrate is made of a transparent glass epoxy resin or acryl resin. As shown in FIG. 4, the input pen 2 mainly includes a main body 17 as a grip portion, and a pen tip 18 is provided at the tip of the main body 17.

The main body 17 has a hollow shape, is made of a hard material and has a small volume. A cylindrical (usually cylindrical) gripper 19 to which the nib tip 18 is attached can be attached.

The pen point tip 18 is made of a soft material having elasticity, and is fitted and fixed to the gripper 19. The fixing of the pen tip 18 is not limited to this mode, and other appropriate mounting modes (for example, the pen tip 18 is directly fixed to the main body) can be adopted.

The degree of elasticity and flexibility of the nib tip 18 is determined by the contact property with the tablet portion 14 on the surface of the display screen 10. In other words, when the elasticity is low, the main function is to prevent slipping with the evening tablet portion 15, and when the elasticity is high, a feeling of writing is obtained.

The material of the pen point tip 18 is adopted from a rubber body, a soft synthetic resin or a filter. The rubber body may be natural rubber or synthetic rubber. As a synthetic rubber, a butadiene styrene copolymer, nitrile rubber, butyl rubber and the like are used. Further, as a synthetic resin body having appropriate elasticity, vinyl chloride resin, vinyl acetate resin, acetyl cellulose, and other appropriate materials are used. That is, for the vinyl chloride resin, a plasticizer is added to obtain the desired elasticity.

The input and display of handwritten characters is performed as follows with the input unit consisting of the above-mentioned configuration.

An input field for character input is displayed at a predetermined position on the display screen 10.

Use the input pen 2 to write desired characters in this input box.

The input pen 2 is given an appropriate resistance by the elasticity of the pen point tip 18 at the tip thereof, and obtains a feeling of writing pressure.

The tablet unit 15 senses the movement of the input pen 2 on the coordinate line and sends the sensed signal (voltage change) to a predetermined processing unit (CPU) to perform handwritten character recognition processing. Display on the display unit 14. According to the input pen 2 of the present embodiment, an appropriate pen pressure feeling is given to the input pen 2, and the input pen 2 is prevented from slipping. As a result, a remarkable improvement in the degree of recognition can be achieved as compared with a conventional pen tip made of metal or hard synthetic resin. In other words, the recognition level has been improved from 70% in the past to 90% with this input pen. ADVANTAGE OF THE INVENTION According to the input pen in the pen computer of this invention, an appropriate pen pressure feeling is given to an input pen and slipping of the input pen is prevented. This can significantly improve recognition.

In addition, by increasing the elasticity of the pen tip of the input pen, a brush feeling can be added.

(Third embodiment)

5 and 6 show an input pen in a pen computer according to another embodiment of the present invention.

In this embodiment, application of magnetic sensing or light sensing to a pen computer will be described.

FIGS. 5 and 6 show only the essential parts, and the same reference numerals are given to members equivalent to those in the previous embodiment.

In the figure, reference numeral 10 denotes a display screen, which comprises a liquid crystal display section 14 and a transparent magnetically sensitive tablet section 15. The tablet portion 15 has a hard surface.

The input pen 2 employs an electromagnetic induction method, and a magnetic pen tip 21 is attached to the tip thereof. The pen tip 21 has a main body 22 formed of a metal body and a magnetically permeable rubber body 23 fitted on the tip thereof. Instead of the rubber body 23, a soft synthetic resin may be used.

The input operation with the input pen 2 is in accordance with the second embodiment. In the present embodiment, the display screen 10 has a mode in which the tablet section 15 is arranged on the liquid crystal display section 14. However, the evening tablet section 15 is a lower layer, and the liquid crystal display section 14 is disposed thereon. There is no essential difference even in the mode of arrangement. Also in this case, the liquid crystal display The surface of 14 is made of a glass material to protect the polarizing plate, and this glass surface forms a hard and smooth surface.

Claims

The scope of the claims

1. In a pen computer that has a handwritten character recognition function and allows handwriting input on the display screen with an input pen,

A transparent soft plate having a smooth surface and a predetermined thickness is placed on the display screen.

A structure of a display unit in a pen computer.

2. The display screen of the computer according to claim 1, wherein the display screen has a structure in which a hard tablet layer is disposed on the display layer, and a tip of a tip of the input pen is formed of a hard body. Construction.

3. In a pressure-sensitive pen computer that has a handwritten character recognition function and allows handwriting to be input on the display screen with an input pen,

An input pen in a pen computer, wherein at least the tip of the input pen is softly formed.

4. The input pen according to claim 3, wherein the pen tip is a rubber body.

5. The input pen according to claim 3, wherein the display screen has a structure in which a pressure-sensitive tablet layer is disposed on the display layer.

6. In a pen computer that has a handwritten character recognition function and that allows handwriting input on the display screen with an input pen,

An input pen in a pen computer, wherein at least the tip of the input pen is softly formed. Claims of amendment

[1 February 11, 995 (1.1.1 2.95) Accepted by the International Bureau: Claims 2-6 at the time of filing were withdrawn; Claims 1 at the time of filing were amended Was. (1 page)]

1. (After the capture)

Equipped with a hand-written character recognition function, a hard tablet layer with a magnetic material wire rope embedded on the liquid crystal display layer is formed on the display screen, and the electromagnetic induction method is used on the display screen. Handwriting is input using an input pen made of a hard body with a magnetic tip.

A transparent soft plate having a smooth surface and a predetermined thickness is placed on the tablet layer of the display screen.

The structure of the display screen unit in the pen computer, characterized in that:

2. (Delete)

3. (Delete)

4. (Delete)

5. (Delete)

1 5 6. (Deleted)

11

Amended paper (Article 19 of the Convention)