CN101458577A - Capacitor touch screen pen - Google Patents

Abstract

The invention provides a capacitance type touch screen writing pen which belongs to the computer peripheral input field. The pen includes a pen head made by flexible conducting material and a penholder made by hard conducting material whole or partly. When writing, touch area of the pen head and the capacitance touch screen increases gradually, the capacitance touch screen determines coordinates information of the pen according with touching area size for capturing charge change caused by the pen, and further determines position of the pen. When the pen is moved, stroke is formed. After the pen is took up, touch area of the pen head and the penholder decreases gradually even to zero, the capacitance touch screen loses coordinates information of the pen because of no-capturing charge change caused by the pen. The pen is located again for forming new stroke, the process is repeated for completing word input. The pen provided by the invention solves problem that the pen is used for inputting word on the capacitance touch screen smoothly, has simple structure and is convenient for operation.

Description

Capacitor touch screen pen

Technical field

The invention belongs to computer peripheral input field, relate to a kind of writing pencil of on capacitance touch screen, writing and transmitting written handwriting by capacitance touch screen.

Background technology

Capacitance touch screen only responds the contact of conductive body at present.Capacitance touch screen can't respond the contact of sharp objects, because sharp objects and capacitance touch screen contact area are little, capacitance touch screen can't produce the change of the electric charge that can measure.General or general writing pencil nib is tiny, and is very little with the capacitance touch screen contact area, therefore also can't be implemented in handwriting input on the capacitance touch screen.

Finger has electric conductivity; and enough contacts area are arranged; its direct clicking operation or finish specific action and be easy on capacitance touch screen; but when on capacitance touch screen, carrying out handwriting input with finger; following two problems can occur: lose a little (1): when the user write, person's handwriting can produce serious disappearance.(2) excessive point: after lifting pen, produce serious unnecessary person's handwriting through regular meeting.When finger was moistening, " losing a little " or " point overflows " phenomenon can be more serious, can't realize input at all.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of writing pencil that can directly write for overcoming finger directly writing the identification difficulty that causes on the capacitance touch screen on capacitance touch screen, to be implemented in the handwriting input on the capacitance touch screen.

The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:

Capacitor touch screen pen comprises the nib that flexible conducting material is made, all or part of penholder of being made by rigid conductive material.Have pressure to do the time spent, written shape can change, and it is big that the contact area between nib and the contact becomes; After pressure disappeared, nib restored to the original state automatically.

According to embodiments of the invention, nib is the tapered shape of rounding.

According to embodiments of the invention, nib directly is connected with penholder.

According to embodiments of the invention, nib is connected with penholder by conductive material.

According to embodiments of the invention, penholder partly has electric conductivity with the part bar that holds a pen in one's hands that nib is connected.

The invention has the beneficial effects as follows, easily solve the handwriting input problem on the capacitance touch screen, be applied on the handheld device with capacitance touch screen, efficient and convenient especially.

Description of drawings

Fig. 1 is a surface structure synoptic diagram of the present invention;

Fig. 2 is that application the present invention draws synoptic diagram a little;

Fig. 3 is a synoptic diagram of using setting-out of the present invention;

Fig. 4 uses the synoptic diagram that the present invention writes;

Description of reference numerals:

1-penholder, 2-nib,

3-capacitance touch screen, 4-display screen,

The point that shows on 5-screen, the line that shows on 6-screen

Embodiment

Further specify technical scheme of the present invention below in conjunction with drawings and Examples.

As shown in Figure 1, capacitor touch screen pen comprises penholder 1, nib 2.Penholder 1 is all or part of to be made by rigid conductive material, as conducting metal.Nib 2 is made by flexible conducting material, as conductive rubber etc.Nib 2 is the inverted cone shape, and from coarse to fine, written 2 butt ends directly are connected with penholder 1, and the thin end of nib 2 guides the position of starting to write, and ensures that the writing position of pen is more accurate.Nib 2 also can be connected with penholder 1 by conductive material.Penholder 1 and nib 2 junction in one's hands with the contacting part and must have electric conductivity of penholder 1, when promptly holding capacitor touch screen pen, be electric connection between the hand and written 2.During nib 2 pressurizeds, shape changes, and the change of the contact area between the capacitance touch screen is big, and capacitance touch screen reaches capacity front foot accurately to obtain the coordinate of pen in contact area.Because uncertainty factors such as finger is direct hand capacity touch-screen, and finger is dry or moistening can not be reacted on the capacitance touch screen.Hand-written nib is compared finger and is had better physically stable characteristic.Therefore come picture point, setting-out by writing pencil, " point overflows " or " losing a little " phenomenon occur and will lack a lot.Guarantee the realization of handwriting input on capacitance touch screen.

On the capacitance touching control handwriting screen, draw a little synoptic diagram as Fig. 2 for this device.When 2 pairs of capacitance touch screen 3 no pressure of nib or when slightly being pressed on the capacitance touch screen 3, shown in Fig. 2 (A), this moment since just nib touch, contact area is little, the change that capacitance touch screen 3 is measured less than electric charge, a position that then can not obtain.When adding a large sum of pressure, deformation takes place in nib 2, constantly increase with the contact area of capacitance touch screen 3, when contact area acquires a certain degree, capacitance touch screen 3 can measure the change of contact position place electric charge, and acquiescence is the position of pen herein, and is that the coordinate figure of X, Y direction is presented on the display screen 4 with a positional information, promptly put 5, shown in Fig. 2 (B).

As the synoptic diagram of Fig. 3 for the setting-out on capacitive touch screen of this device.When nib 2 did not have or slightly is pressed on the capacitance touch screen 3, shown in Fig. 3 (A), because contact area is smaller, capacitance touch screen 3 can't measure the change of electric charge, therefore can not obtain the position of pen.When adding a large sum of pressure, deformation takes place in nib 2, constantly increase with the contact area of capacitance touch screen 3, when contact area acquires a certain degree, capacitance touch screen 3 can measure the change of this place's electric charge, gives tacit consent to the position that this place is pen, and is that the coordinate figure of X, Y direction is presented on the display screen 4 with a positional information, promptly put 5, shown in Fig. 3 (B).Keep this moment a pressure not subtract or the summary pressure boost, move horizontally pen, capacitance touch screen 3 can accurately obtain the positional information in the moving process and be presented on the display screen 4, start writing at last, capacitance touch screen 3 no longer measures the change of electric charge, promptly lose the positional information of writing pencil, form a line 6, shown in Fig. 3 (C).

The synoptic diagram that writes on capacitive touch screen for this device as Fig. 4.When utilizing this device to write, press pen, nib becomes big gradually with the capacitance touch screen contact area, when contact area meet or exceed capacitance touch screen can catch the pen cause thereon charge variation the time, capacitance touch screen can be determined the coordinate information of pen according to charge variation, and further determines the position of pen.Keep written contact area constant or slightly increase and when moving, just can form stroke.When starting writing, nib is reduced to zero gradually with the capacitance touch screen contact area, when capacitance touch screen is no longer caught the charge variation that causes less than pen thereon, has just lost the coordinate information of pen.Relocate by nib, exert pressure, move, process such as start writing forms new stroke, and said process just can be finished handwriting input repeatedly.

Claims (5)

1, a kind of capacitor touch screen pen is characterized in that, comprises the nib that flexible conducting material is made, all or part of penholder of being made by rigid conductive material.

2, capacitor touch screen pen according to claim 1 is characterized in that, nib is the turbination shape.

3, capacitor touch screen pen according to claim 1 is characterized in that, nib directly is connected with penholder.

4, capacitor touch screen pen according to claim 1 is characterized in that, nib is connected with penholder by conductive material.

5, capacitor touch screen pen according to claim 1 is characterized in that, penholder is with the part that is connected of nib and hold penholder and partly have electric conductivity.

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