CN101727224B - Touch type flat panel display and touch method - Google Patents
Touch type flat panel display and touch method Download PDFInfo
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- CN101727224B CN101727224B CN2008101715792A CN200810171579A CN101727224B CN 101727224 B CN101727224 B CN 101727224B CN 2008101715792 A CN2008101715792 A CN 2008101715792A CN 200810171579 A CN200810171579 A CN 200810171579A CN 101727224 B CN101727224 B CN 101727224B
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Abstract
The invention relates to a touch type flat panel display and a touch method. The flat panel display is provided with a first substrate and a second substrate, wherein a liquid layer is arranged between the two substrates, the surface of the second substrate is provided with a plurality of scanning elements which are electrically connected to a controller, the controller continuously senses the scanning elements and transmits waveform signals, when the flat panel display is touched, the waveform signals generate waveform difference due to resistance-capacitance delay (RC display), the controller senses and positions touch position and touch strength by the waveform difference generated by the waveform signals transmitted by the scanning elements so as to achieve the purpose that a user can directly touch the flat panel display without additionally arranging the touch panel.
Description
Technical field
The present invention relates to a kind of touch technology, but refer to a kind of touch control type planar display of touch point of direct sensing flat-panel screens especially.
Background technology
Because the high-tech electronic information industry is flourish, consumption electronic products have become the necessity in people's daily life, and many consumption electronic products stride forward towards compact trend, particularly in conjunction with showing and the touch-control liquid crystal display panel of importing two kinds of technology, it has the function of liquid crystal display and touch-control input simultaneously, and can promote the Practical Performance of all kinds of consumption electronic products significantly.
See also shown in Figure 1, be existing touch-control liquid crystal display panel synoptic diagram, as shown in the figure, touch-control liquid crystal display panel 1 mainly has liquid crystal panel 11 to be formed with contact panel 12, during its assembling, is covered with optical cement on liquid crystal panel 11 (or contact panel 12) surface, then contact panel 12 (or liquid crystal panel 11) is attached on the optical cement, then by formalities such as pressing and heating, treat optical cement curing after, just finish the assembling of touch-control liquid crystal display panel 1.
Touch-control liquid crystal display panel 1 in use, liquid crystal panel 11 has exclusive display driver circuit, contact panel 12 also needs exclusive position of touch analysis circuit, in addition, also need relevant driving circuit, position of touch and liquid crystal display position are integrated, so that when touching contact panel 12, the action of liquid crystal panel 11 instant playback correspondences.
Yet, the above-mentioned discovery, touch-control liquid crystal display panel 1 must two kinds of panels, and promptly contact panel 11 is made up with liquid crystal panel 12, therefore, the liquid crystal panel 12 that is positioned at bottom is when luminous demonstration, light can cause the luminescence efficiency of touch-control liquid crystal display panel 1 to descend, simultaneously earlier through contact panel 11, the thickness of touch-control liquid crystal display panel 1 also can't effectively reduce, and main cause is still it needs folded the establishing of two kinds of different panels to form at least.
Moreover, the contact panel 12 of different technologies kenel, as resistance-type or condenser type etc., its position of touch analysis circuit is also inequality, therefore, the only corresponding a kind of technology kenel contact panel 12 of touch-control liquid crystal display panel 1, and be not easy with liquid crystal panel 11 display driver circuit integrate, in addition, the contact panel 12 of each kenel is when using or make, its disappearance is respectively arranged, and for example the contact panel 12 of resistance-type is subject to environment temperature during its use, temperature drift, under on the low side or the environment that the temperature difference is big, have influence on the degree of accuracy that its position of touch is judged easily, simultaneously, the contact panel 12 of resistance-type is not easy to develop towards large scale; Capacitive for another example contact panel 12, electric field and humidity effect arround it is subjected to when using easily, the degree of accuracy that causes judging position of touch descends, simultaneously, capacitive contact panel 12 must be with the source of finger as contact, can't arbitrarily use general pointer, more can't import in hand-written mode.
Therefore, just capable field technique staff development goes out not need contact panel 12, just can directly carry out the liquid crystal panel 1 of touch-control, as the tw Taiwan patent gazette, LCD that notification number is I245252 number and touch control method thereof, it is to utilize ready-made liquid crystal panel structure, and it writes the time dead of image data (or signal) in sweep trace scanning, also be that the pairing transistor of sweep trace is when closing (off) state, measure the counter electrode (opposite electrode) of Thin Film Transistor-LCD and the liquid crystal capacitance effect between sweep trace (scan line) respectively, and judge according to the pairing liquid crystal capacitance effect of each sweep trace whether the liquid crystal screen of LCD has touched, if have touched, then a voltage signal is injected in each data line, afterwards, measure the liquid crystal capacitance effect between counter electrode and data line (data line) more respectively, again according to sweep trace, each liquid crystal capacitance effect-size or variation that signal wire is detected, decide the pressure spot (coordinate) on the screen, in view of the above, can reach the function of touch control screen.
Though described patent case does not change existing liquid crystal panel structure, but when judging whether liquid crystal panel has touch-control, except needs are detected the signal of sweep trace and signal wire simultaneously, it must additionally provide a voltage signal, change together with the capacity effect that detects by described voltage signal again and analyze, therefore, described patent case is when circuit design, therefore, driving circuit except liquid crystal panel, outside the circuit that touch-control is analyzed, also need the extra circuit that described voltage signal is provided that is provided with, then, will cause the power consumption raising when described liquid crystal panel during at touch-control continuously.
Moreover, described patent case must scan the time dead that writes image data (or signal) at sweep trace just can carry out the judgement of touch-control, the actuation time of sweep trace is extremely short, therefore under continuous action, if touching is slightly arranged, just cause erroneous judgement easily, the while is fashionable if sweep trace is write continuously in data, can't effectively judge the position of touch-control.
Tw Taiwan patent gazette for another example, touch-control liquid crystal display that notification number is I245253 number and touch control method thereof, a feature of the present invention is to utilize the structure of ready-made Thin Film Transistor-LCD, and the time dead (Idle Time) that writes image data (signal) in its sweep trace scanning inputs to an AC signal on the counter electrode (opposite electrode), (couple) data line (data line) and formed liquid crystal capacitance of sweep trace (scanline) to described counter electrode and thin film transistor (TFT) (hereinafter to be referred as the TFT) substrate so that described AC signal is coupled respectively, when the LCD panel pressurized, make the coupled signal of pressure spot corresponding data lines and sweep trace become big, afterwards, detect the big data line of coupled signal change and the relative position (coordinate) of sweep trace again, obtain the pressure spot position (coordinate) on the screen of Thin Film Transistor-LCD according to this, in view of the above, can reach the function of touch control screen.
Right this patent case is as notification number I245252 number, except must be by outside input exchange signal, outside the reference signal as the touch point sensing, it must scan the time dead that writes image data in sweep trace just can carry out the judgement of touch-control, and the actuation time of sweep trace is extremely short, therefore under continuous action, if touching is slightly arranged, just cause erroneous judgement easily, the while is fashionable if sweep trace is write continuously in data, can't effectively judge the position of touch-control.
Because above-mentioned demand, the inventor studies intensively, and long-pending individual is engaged in the many years of experience of described cause, designs a kind of brand-new touch control type planar display eventually.
Summary of the invention
Fundamental purpose of the present invention, provide a kind of can directly the detecting and touch control type planar display and the touch control method judged by carrying out position of touch and touch-control power on the flat-panel screens, under its existing structure with flat-panel screens, directly judge the wave form varies of waveform signal transmission, just but position of touch on the plane of orientation display and touch-control power can improve the wave form varies amount of waveform signal transmission simultaneously.
For reaching above-mentioned purpose, touch control type planar display of the present invention, has a flat-panel screens, it can be Thin Film Transistor-LCD (Thin Film Transistors Liquid Cyrstal Display, TFT LCD), active matrix liquid crystal display such as plasma display panel, Electronic Paper (E-Paper) or low temperature polycrystalline silicon liquid crystal panel (Active-Matrix liquid crystal displays, AM-LCDs) one of them; It includes one first substrate and one second substrate described flat-panel screens, be provided with one between described two substrates in order to regulation and control light penetration, reflection or change the liquid level of its polarization state, and described second substrate is provided with plural scanning element in the surface of adjacent described liquid level, and described these scanning elements are electrically connected to a controller.
When described these scan the element transmission waveform signal, controller continues described these of sensing and scans the waveform signal of element, owing to be formed with one first capacity effect and one first electricresistance effect between described first substrate, described second substrate and described liquid level, described these scan described first capacity effect of waveform signal foundation of element, described first electricresistance effect and keep given shape.
When first substrate of described flat-panel screens is subjected to the external force touch-control, described first substrate is in described position of touch place, one second capacity effect and one second electricresistance effect greater than described first capacity effect and described first electricresistance effect will be produced, described second capacity effect and described second electricresistance effect make described these scanning elements when the transmitted waveform signal, because of capacitance-resistance sluggishness (RC Delay) produces described wave form varies (waveform difference), as spectral change, waveform slope, crest size or rise to time to peak or the like, then described controller will produce the waveform signal of wave form varies, the waveform signal that does not produce wave form varies is done analysis, the described scanning element that is aided with position of touch, the scanning element of contiguous described position of touch is analyzed, and locatees described position of touch and push power by the wave form varies amount.
When making the first substrate touch-control, the variable quantity of described second capacity effect, described second electricresistance effect is able to effective raising, can be undertaken by following manner:
The flexibility (flexibility) that changes described first substrate makes it greater than described second substrate;
The thickness that changes described first substrate makes it less than described second substrate; And
The young's modulus (Young ' s modulus) that changes described first substrate makes it less than described second substrate;
Because the distance between described first substrate, described second substrate is for fixing, therefore, when the flexibility of described first substrate greater than the thickness of described second substrate, described first substrate less than described second substrate, the young's modulus of perhaps described first substrate is less than described second substrate, the deflection of described first substrate compared to described second substrate in position of touch can increase, cause the spacing of described first substrate and described second substrate little, make the variable quantity of described second capacity effect and described second electricresistance effect obviously increase.
Except aforesaid way, also can by after chat mode, improve the variable quantity of second capacity effect.
Before second capacity effect is described again, described first substrate and the thin portion of described second substrate structure at first are described, described first substrate, described second substrate is provided with a transparent electrode layer (IndiumTin Oxide on adjacent described liquid level surface respectively, ITO), and the distance piece (PhotoSpacer) with a plural number between described first substrate and described second substrate is connected, described these distance piece two ends are supported in respectively on the described transparent electrode layer of described first substrate and described second substrate surface, and described first substrate and described transparency electrode interlayer are provided with plural number look resistance layer (Color Resin) arranged side by side, be provided with a black matrix" (BlackMatrix) between described these look resistance layers and described first substrate, then, thickness by described these look resistance layers is less than the thickness of described these distance pieces, or increase the area that described these black matrix"s are positioned at described look resistance layer, all can make described second capacity effect present the increase of staged or discontinuous formula.
Moreover, described these black matrix"s of above-mentioned increase are positioned at the area of described look resistance layer, and make the thickness of the thickness of described these look resistance layers less than described these distance pieces, in existing flat-panel screens processing, all have fixing processing, only need adjust look resistance layer light shield layout (layout), not need to change any parameter in the processing fully, just can reach the effect that improves described second capacity effect.
Above-mentioned only is simply to put unitary declaration at described plane display device structure of the present invention, because it moves in principle is not this case demand, and be open and know related art techniques person and can understand morning, so give unnecessary details for the structure and the not addition of operating principle of described flat-panel screens, this purpose only illustrates described second capacity effect and described second electricresistance effect when how improving the plane is presented at touch-control, and non-limiting described flat-panel screens classification of the present invention, as long as described flat-panel screens has the two folded substrates of establishing, between described two substrates, be filled with predetermined substance, and the bottom substrate is provided with the scanning element with this display frame, the sensing that promptly can the present invention carries out position of touch and touch-control power, for example, as LCD, two transparency carriers are folded mutually to be established in order to have, and be filled with liquid crystal material therebetween, and form first capacity effect and first electricresistance effect as described in the present invention, perhaps, as Electronic Paper, identical LCD has two substrates, be filled to liquid substance in it and form first capacity effect and described second electricresistance effect as described in the present invention, or be Thin Film Transistor-LCD (Thin Film Transistors LiquidCyrstal Display, TFT LCD), plasma display panel, active matrix liquid crystal display such as Electronic Paper (E-Paper) or low temperature polycrystalline silicon liquid crystal panel (Active-Matrix liquid crystal displays, AM-LCDs) one of them person flat-panel screens of being correlated with.
In addition, be noted that, described these unit that described second substrate surface is provided with, except the single shaft setting, it is vertical or horizontal single direction setting, the sweep trace or the signal wire that are provided with of single shaft for example, also can the double-shaft way setting, be that described these scanning elements are set to crisscross sweep trace and signal wire, and be connected to described controller simultaneously, then when flat-panel screens during at touch-control, can be by the metric data adjustment of twin shaft sensing, the accuracy when improving the sensing position of touch and pushing power.
Beneficial effect of the present invention is: but can be directly by position of touch and touch-control power on the wave form varies amount plane of orientation display that carries out the detecting of position of touch and touch-control power on the flat-panel screens and judge, can improve the waveform signal transmission.
Description of drawings
Fig. 1 is existing touch-control liquid crystal display panel synoptic diagram;
Fig. 2 is the calcspar of preferred embodiment of the present invention;
Fig. 3 is the process flow diagram of preferred embodiment of the present invention;
Fig. 4 is the vertical view of preferred embodiment of the present invention;
The cut-open view that Fig. 5 locates for the present invention the 4th figure A-A ';
The cut-open view that Fig. 6 locates for the present invention the 4th figure B-B ';
Fig. 7 is the present invention's calcspar of a preferred embodiment again;
Fig. 8 is the circuit diagram of preferred embodiment of the present invention;
Fig. 9 is the waveform synoptic diagram of Fig. 8 of the present invention;
The synoptic diagram of Figure 10 during for the touch-control of preferred embodiment of the present invention;
Figure 11 is the calcspar of the another preferred embodiment of the present invention.
Description of reference numerals: 1-touch-control liquid crystal display panel; The 11-liquid crystal panel; The 12-contact panel; The 2-flat-panel screens; 21-first substrate; The 211-transparent electrode layer; 212-look resistance layer; The 213-black matrix"; 22-second substrate; The 221-transparent electrode layer; The 222-protective seam; The 23-liquid level; The 24-scanning element; The 241-scanning element; The 242-scanning element; The 25-distance piece; 26,261,262-driving element; The 27-waveform signal; The 271-wave form varies; 28,281,282,283,284,285-picture element electric capacity; The 3-controller; The 31-signal amplifier; 4,41,42-touch point.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Fig. 2～6, be calcspar, process flow diagram and the vertical view of preferred embodiment of the present invention, and Fig. 5,6 is respectively the cut-open view that Fig. 4 A-A ' and B-B ' locate.
As shown in the figure, touch control type planar display of the present invention includes a flat-panel screens 2 and a controller 3, flat-panel screens 2 described in the present embodiment can be Thin Film Transistor-LCD (Thin Film TransistorsLiquid Cyrstal Display, TFT LCD), active matrix liquid crystal display such as plasma display panel, Electronic Paper (E-Paper) or low temperature polycrystalline silicon liquid crystal panel (Active-Matrix liquid crystal displays, AM-LCDs) one of them.
Described flat-panel screens 2 has two relative one first substrate 21 and one second substrates 22, is provided with one between described two substrates in order to regulation and control light penetration, reflection or change the liquid level 23 of its polarization state, wherein:
Described first substrate 21 is provided with transparent electrode layer a 211 (Indium TinOxide on adjacent described liquid level 23 surfaces, ITO), described transparent electrode layer 211 and 21 of described first substrates are provided with plural number look resistance layer 212 (Color Resin) arranged side by side, described these look resistance layers and 21 of described first substrates are provided with a black matrix" 213 (Black Matrix), and the thickness of described these look resistance layers 212 is less than the thickness of described these distance pieces 25.
Described second substrate 22 is provided with plural spaced scanning element 24 on adjacent described liquid level 23 surfaces; its can be signal wire (Data line), twin shaft or the sweep trace that is crisscross arranged of sweep trace (Scan line), single shaft of single shaft and signal wire one of them; and described second substrate 22 is provided with a transparent electrode layer 221 that is covered in described these scanning elements 24 on identical surface, and described transparent electrode layer 221 surfaces are provided with a protective seam 222 in addition.
And 22 distance pieces 25 with plural number of described first substrate 21 and described second substrate (Photo Spacer) are connected, and described these distance piece 25 two ends are supported in respectively on the described transparent electrode layer 211 and protective seam 222 on described first substrate 21 and described second substrate 22 surfaces.
Described controller 3 electrically connects with described these scanning elements 24 of described second substrate 22, and scanning element 24, described these also are connected to a driving element 26, when producing a waveform signal, driving element 26 is input to described these when scanning element 24, described these scan element 24 makes described flat-panel screens 2 produce corresponding character and image according to described waveform signal, mention flat-panel screens 2 in the present invention, it moves in principle is not this case demand, and be open and know related art techniques person and can understand morning, so give unnecessary details for the structure and the not addition of operating principle of flat-panel screens 2, moreover, flat-panel screens 2 of the present invention, as long as described flat-panel screens 2 has the two folded substrates of establishing, between described two substrates, be filled with predetermined substance, and be formed with described first electrical effect and described first electricresistance effect, and the bottom substrate is provided with the scanning element with this display frame, the sensing that promptly can the present invention carries out position of touch and touch-control power, for example, as LCD, two transparency carriers are folded mutually to be established in order to have, and be filled with liquid crystal material therebetween, and form first capacity effect and described first electricresistance effect as described in the present invention, perhaps, as Electronic Paper, identical LCD has two substrates, be filled to liquid substance in it and form first capacity effect and described first electricresistance effect as described in the present invention, perhaps be Thin Film Transistor-LCD (Thin Film Transistors Liquid Cyrstal Display, TFT LCD), plasma display panel, active matrix liquid crystal display such as Electronic Paper (E-Paper) or low temperature polycrystalline silicon liquid crystal panel (Active-Matrixliquid crystal displays, AM-LCDs) one of them.
After described these of described flat-panel screens 2 scanned element 24 and receive described waveform signal, the position of touch on described flat-panel screens 2 surfaces is judged and defined to described controller 3, comprises the following steps:
(100) waveform of lasting sensing plural number scanning element 24 transmitted waveform signals;
(200) described flat-panel screens surface generation one position of touch;
(300) wave form varies of position, sensing described touch-control place; And
(400) analyze and define described contact position.
In above-mentioned steps, described these controllers 24 continue the waveform signal that the described driving element 26 of transmission is transmitted, in the process of described waveform transmission, because described first substrate 21,23 of described second substrate 22 and described liquid levels have one first capacity effect and one first electricresistance effect, make described waveform signal in the process of transmission, the spectral change that is maintained fixed, waveform, waveform slope, rise time or crest size etc., and be subjected to the external force touching when described first substrate 21 surfaces, when causing first substrate, 21 surfaces to produce distortion, described first substrate 21, the capacity effect that described second substrate 22 and described liquid level are 23 increases, become one second capacity effect, and described second capacity effect makes described these scanning elements 24 when the transmitted waveform signal, because of capacitance-resistance sluggishness (RC Delay) produces described wave form varies (waveform difference), then described controller 3 is according to described wave form varies, as spectral change, waveform shape changes, waveform slope, rise time or crest size etc. are located described position of touch and are pushed power.
See also shown in Figure 7, be the present invention's calcspar of a preferred embodiment again, as shown in the figure, aforesaid controller 3 is in order to improve the sensitivity of sensing, itself and described these scan 24 of elements, are connected with a signal amplifier 31 in order to amplify described wave form varies, are beneficial to when the described wave form varies of sensing, described wave form varies amount is promoted, improve and judge described position of touch and the accuracy of pushing power; Described signal amplifier 31 also can be arranged in the described controller 3; Moreover described controller 3 also can be arranged in the described driving element 26 and (not indicate among the figure), when making flat-panel screens 2 be applied to small size, can effectively dwindle the circuit volume.
Please consult Fig. 2 simultaneously, 8,9, shown in 10, calcspar for preferred embodiment of the present invention, the waveform synoptic diagram of circuit diagram and Fig. 7, as shown in the figure, flat-panel screens 2 can be considered a plurality of resistor capacitor circuit and constitutes, this is in order to the variation of aid illustration flat-panel screens 2 waveform when the touch-control, in the present embodiment, only do explanation with the size of 4X5, and the size of non-limiting flat-panel screens of the present invention 2 or size, simultaneously, explain for convenience, in the present embodiment, flat-panel screens 2 can be considered Thin Film Transistor-LCD (Thin Film TransistorsLiquid Cyrstal Display, TFT LCD).
Can know in the drawings and find out, described driving element 26 does not scan element 24 with described these and electrically connects, the drive pattern of flat-panel screens 2 is: driving element 26 provides a square wave to open described thin film transistor (TFT) that scans on the element 24, in order to be beneficial to explanation and to explain, present embodiment is done explanation with square-wave waveform, and the signal kenel of non-limiting driving element 26 outputs;
When described scanning element 241 (at this, scanning element 241 can be considered sweep trace) image element circuit when all opening, the picture element signal that is stored in impact damper passes through scanning element 242 (at this moment, scanning element 242 can be considered data line), the picture element electric capacity 28 that is charged to described scanning element 24 simultaneously (comprises storage capacitors and liquid electric capacity, in the present embodiment, liquid electric capacity can be considered liquid crystal capacitance), because (ColorFilter, CF) the common-battery position of side allows the square wave of input one by one be out of shape for impedance of lead own and colored mating plate.
Described these scan element 24 when lasting transmitted waveform signal 27, by controller 3 detecting waveform signals 27, at this moment, described first substrate 21, described second substrate 22 and 23 of described liquid levels have fixing described first capacity effect and described first electricresistance effect, and make described waveform signal 27 in the process of transmission, the spectral change that is maintained fixed, waveform, waveform slope, rise time or crest size etc. explain for the square wave of fixed in shape in the present embodiment.
When described flat-panel screens 2 is subjected to the external force touch-control, described first substrate 21 at a touch point 4 produces distortion, this distortion is not that naked eyes can directly be seen, for thickness flat-panel screens 2 as thin as a wafer, its deflection is to the utmost to be huge, make described first substrate 21 surfaces produce distortion, then described first substrate 21,23 distances of described second substrate 22 and described liquid level shorten, cause electric capacity, electricresistance effect increases, become described second capacity effect and described second electricresistance effect, and described second electric capacity is imitated, described second electricresistance effect makes described these scanning elements 24 when the transmitted waveform signal, produce described wave form varies because of capacitance-resistance is sluggish, then described controller 3 is according to described wave form varies, as spectral change, waveform shape changes, waveform slope, rise time or crest size etc. are detected and are located described position of touch and push power.
Moreover, different touch-control powers, an and close touch point 41,42, it causes the variation of described first substrate 21 also inequality, this more can know in Fig. 9 and find out, if flat-panel screens 2 is pushed one by one with same power in the right side by a left side, each press points is each picture element electric capacity 281,282,283,284,285 when pushing in regular turn from left to right, then can get the result of Fig. 9, can obviously find out in the drawings, the wave form varies amount of each picture element electric capacity 281～285 is obviously different, wave form varies amount difference, the position when utilizing these wave form varies amounts just can obtain same power size to push.By Figure 10, different touch-control powers, push scope or multi-point touch, the elastic deformation curve of first substrate 21 is all inequality, even same described scanning element 24, described second capacity effect, second electricresistance effect that are caused are also inequality, therefore, and the wave form varies that then described controller 3 needs only according to each scanning element 241, as spectral change, waveform shape change, waveform slope, rise time or crest size etc., and can carry out the position judgment and the power judgement of a plurality of touch points 4.
See also shown in Figure 11, calcspar for the another preferred embodiment of the present invention, the difference of this embodiment and earlier figures 2 is being, employed described these scanning elements 24 are the single shaft setting among Fig. 2, it is vertical or horizontal single direction setting, and in this embodiment, can be with described these scanning elements 241,242 with the double-shaft way setting, be described these scanning elements 241,242 connect described driving element 261 respectively, after 261, it is set to crisscross in flat-panel screens 2, and be connected to described controller 3 simultaneously, then when flat-panel screens 2 during at touch-control, can do compensating computation by the measurement of twin shaft sensing, the accuracy when improving the sensing position of touch and pushing the power size.
Moreover, described these scanning elements 241,242 are respectively sweep trace and signal wire, mean described scanning element 241 and be sweep trace, and when being connected to described driving element 261, described scanning element 242 is described driving element 262 for signal wire is connected to, otherwise described scanning element 242 is a sweep trace, and when being connected to described driving element 262, described scanning element 241 is described driving element 261 for signal wire is connected to.
In sum, touch control type planar display of the present invention, the invention with patent reaches the value to industry; The applicant mentions the application of patent of invention according to the regulation of Patent Law.
More than explanation is just illustrative for the purpose of the present invention, and nonrestrictive, those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (17)
1. touch control type planar display, include a flat-panel screens, described flat-panel screens has two relative one first substrate and one second substrates, be provided with a liquid level between described two substrates, described second substrate is provided with plural scanning element on the surface of adjacent described liquid level, described plural scanning element is characterized in that in order to the transmitted waveform signal:
Described plural scanning element is electrically connected to a controller, and described controller continues the described plural scanning element of detecting, and locate position of touch and push power by the wave form varies that waveform signal produces, wherein:
Described first substrate, have one first capacity effect and one first electricresistance effect between described second substrate and described liquid level, and described first substrate produces one second capacity effect and one second electricresistance effect at described position of touch, described second capacity effect, described second electricresistance effect is greater than described first capacity effect and described first electricresistance effect, and described second capacity effect, described second electricresistance effect makes described plural scanning element produce described wave form varies when the transmitted waveform signal, then described controller is detected and is located described position of touch and push power according to described wave form varies;
The described plural scanning element of described flat-panel screens is connected with the driving element of a generation waveform signal, and then described controller is arranged in the described driving element or with described driving element and electrically connects.
2. touch control type planar display according to claim 1 is characterized in that, described plural scanning element be sweep trace, signal wire or the sweep trace that is crisscross arranged and signal wire one of them.
3. touch control type planar display according to claim 1 is characterized in that, described wave form varies be spectral change, waveform slope, crest size or rise to time to peak one of them.
4. touch control type planar display according to claim 1 is characterized in that, described controller is connected with one in order to amplify the signal amplifier of described wave form varies.
5. touch control type planar display according to claim 1, it is characterized in that, the mode of described second electricresistance effect be the flexibility of described first substrate greater than the thickness of described second substrate, described first substrate less than the young's modulus of described second substrate or described first substrate less than one of them mode of described second substrate.
6. touch control type planar display according to claim 1, it is characterized in that, described first substrate, described second substrate is provided with a transparent electrode layer on adjacent described liquid level surface respectively, and be connected with a plural distance piece between described first substrate and described second substrate, described plural distance piece two ends are supported in respectively on the described transparent electrode layer of described first substrate and described second substrate surface, and described first substrate and described transparency electrode interlayer are provided with plural number look resistance layer arranged side by side, be provided with a black matrix" between described plural look resistance layer and described first substrate, and the thickness of described plural look resistance layer is less than the thickness of described plural distance piece.
7. touch control type planar display according to claim 1 is characterized in that, described flat-panel screens is an active matrix liquid crystal display.
8. touch control type planar display according to claim 7 is characterized in that, described active matrix liquid crystal display is Thin Film Transistor-LCD, plasma display panel, Electronic Paper or low temperature polycrystalline silicon liquid crystal panel.
9. the touch control method of a touch control type planar display in order to judge and to define the position of touch on a touch control type planar display surface, is characterized in that, comprises the following steps:
Continue the waveform of sensing plural number scanning element transmitted waveform signal;
Described flat-panel screens surface produces a position of touch;
The wave form varies of position, sensing described touch-control place; And
Analysis also defines described contact position, wherein:
Described flat-panel screens has two relative one first substrate and one second substrates, be provided with a liquid level between described two substrates, described second substrate is provided with the scanning element of a plural number in the surface of adjacent described liquid level, described plural scanning element is electrically connected to a controller;
Described first substrate, have one first capacity effect and one first electricresistance effect between described second substrate and described liquid level, and described first substrate produces one second capacity effect and one second electricresistance effect in described position of touch, described second capacity effect, described second electricresistance effect is greater than described first capacity effect and described first electricresistance effect, and described second capacity effect, described second electricresistance effect makes described plural scanning element produce described wave form varies when the transmitted waveform signal, then described controller is located described position of touch and is pushed power according to described wave form varies;
The described plural scanning element of described flat-panel screens is connected with the driving element of a generation waveform signal, and then described controller is arranged in the described driving element or with described driving element and electrically connects.
10. the touch control method of touch control type planar display according to claim 9, it is characterized in that, analyzing and defining in the step of described contact position, the described scanning element of described position of touch with and adjacent described plural scanning element carry out waveform comparison, define described contact position with described wave form varies.
11. the touch control method of touch control type planar display according to claim 9 is characterized in that, described wave form varies be spectral change, waveform slope, crest size or rise to time to peak one of them.
12. the touch control method of touch control type planar display according to claim 9 is characterized in that, described plural scanning element be sweep trace, signal wire or the sweep trace that is crisscross arranged and signal wire one of them.
13. the touch control method of touch control type planar display according to claim 9 is characterized in that, described controller is connected with one in order to amplify the signal amplifier of described wave form varies.
14. the touch control method of touch control type planar display according to claim 9, it is characterized in that, the mode of described second electricresistance effect be the flexibility of described first substrate greater than the thickness of described second substrate, described first substrate less than the young's modulus of described second substrate or described first substrate mode less than described second one of them person of substrate.
15. the touch control method of touch control type planar display according to claim 9, it is characterized in that, described first substrate, described second substrate is provided with a transparent electrode layer on adjacent described liquid level surface respectively, and be connected with a plural distance piece between described first substrate and described second substrate, described plural distance piece two ends are supported in respectively on the described transparent electrode layer of described first substrate and described second substrate surface, and described first substrate and described transparency electrode interlayer are provided with plural number look resistance layer arranged side by side, be provided with a black matrix" between described plural look resistance layer and described first substrate, and the thickness of described plural look resistance layer is less than the thickness of described plural distance piece.
16. the touch control method of touch control type planar display according to claim 9 is characterized in that, described flat-panel screens is an active matrix liquid crystal display.
17. the touch control method of touch control type planar display according to claim 16 is characterized in that, described active matrix liquid crystal display is Thin Film Transistor-LCD, plasma display panel, Electronic Paper or low temperature polycrystalline silicon liquid crystal panel.
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| CN2008101715792A CN101727224B (en) | 2008-10-29 | 2008-10-29 | Touch type flat panel display and touch method |
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| CN2008101715792A CN101727224B (en) | 2008-10-29 | 2008-10-29 | Touch type flat panel display and touch method |
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| CN101727224B true CN101727224B (en) | 2011-09-21 |
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| CN102446017B (en) * | 2010-10-09 | 2014-06-18 | 联建(中国)科技有限公司 | Touch display panel |
| TWI598672B (en) * | 2010-11-11 | 2017-09-11 | 希畢克斯幻像有限公司 | Driving method for electrophoretic displays |
| US10726760B2 (en) | 2013-10-07 | 2020-07-28 | E Ink California, Llc | Driving methods to produce a mixed color state for an electrophoretic display |
| TWI550332B (en) | 2013-10-07 | 2016-09-21 | 電子墨水加利福尼亞有限責任公司 | Driving methods for color display device |
| US10380931B2 (en) | 2013-10-07 | 2019-08-13 | E Ink California, Llc | Driving methods for color display device |
| CN106468966A (en) * | 2015-08-18 | 2017-03-01 | 深圳莱宝高科技股份有限公司 | A kind of touch control display apparatus and preparation method thereof |
| CN105224209A (en) * | 2015-09-25 | 2016-01-06 | 联想(北京)有限公司 | Electronic equipment and information processing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1471073A (en) * | 2002-07-23 | 2004-01-28 | 李友端 | Contact-controllable liquid crystal display device and its contact control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1471073A (en) * | 2002-07-23 | 2004-01-28 | 李友端 | Contact-controllable liquid crystal display device and its contact control method |
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