CN101581847B - Touch-control liquid crystal display panel and liquid crystal display - Google Patents
Touch-control liquid crystal display panel and liquid crystal display Download PDFInfo
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- CN101581847B CN101581847B CN2009101462276A CN200910146227A CN101581847B CN 101581847 B CN101581847 B CN 101581847B CN 2009101462276 A CN2009101462276 A CN 2009101462276A CN 200910146227 A CN200910146227 A CN 200910146227A CN 101581847 B CN101581847 B CN 101581847B
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Abstract
The invention discloses a touch-control liquid crystal display panel, mainly comprising a first substrate and a second substrate; the first substrate comprises a plurality of pixel regions; thin film transistors (TFT) are arranged in the pixel regions; and the second substrate comprises a transparent substrate which is provided with a touch-control marking layer used for marking the pixel positions. The invention also discloses a touch-control liquid crystal display comprising the touch-control liquid crystal display panel and a detector. The adoption of the panel and the display meets the thinning requirements of thin thickness and light weight.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of touch-control liquid crystal display panel and LCD.
Background technology
At present, the application of touch-screen is along with the development of information society is more and more general, and its conduct human-computer interaction technology the most easily has been pushed to various fields.That touch-screen has is sturdy and durable, reaction velocity fast, save the space, be easy to many advantages such as interchange, and this man-machine interaction mode has been given multimedia with brand-new looks, is extremely attractive brand-new multimedia interactive equipment.
Generally speaking, the touch-control liquid crystal display that often use the public arena is that a touch-screen (touch panel) additionally is set on the surface of display panels, touch-screen mainly utilizes technology such as resistance, electric capacity, infrared scan and surface acoustic wave to realize touch function, but so not only can increase the general thickness and the weight of display, can't reach the demand of slimming, and touch-screen self also has power consumption.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of touch-control liquid crystal display panel and LCD, and this panel and display thickness are thin, in light weight and do not have an excessive power drain.
For achieving the above object, the invention provides a kind of touch-control liquid crystal display panel, comprise first substrate and second substrate, described first substrate comprises a plurality of pixel regions, thin film transistor (TFT) is positioned at pixel region; Described second substrate comprises a transparency carrier, and this transparency carrier is provided with the touch-control marking layer with self similarity pattern; Judge locations of pixels by detected information with touch-control marking layer of self similarity pattern.
The present invention also provides a kind of touch-control liquid crystal display, comprises above-mentioned touch-control liquid crystal display panel and detecting device, and described detecting device is used for described touch-control marking layer is detected.
As seen from the above technical solutions, the present invention is on existing LCD (LCD) panel technology basis, the touch-control marking layer that will have the self similarity pattern is arranged on second substrate, be arranged on transparency carrier in the specific embodiment and to being applied to block between the transistorized black matrix" of the first substrate upper film (BM), perhaps directly on the transparency carrier of second substrate, replace being applied to block the transistorized black matrix" of the first substrate upper film with the touch-control marking layer, thus the embedding of the information of realization.By the scan detection of detecting device to the touch-control marking layer that has the self similarity pattern in the pixel, the result is fed back in the computer system, computer system is according to the information of detected touch-control marking layer, judge the physical location of pixel, and carry out the action of check point according to signal, finish touch function.The present invention has broken through the touch screen technology that existing surface at display panels is provided with power consumption, touch-control marking layer with self similarity pattern is arranged in the display panels, detect identification touch-control marking layer by detecting device, under systemic effect, realize touch controllable function.This display panels does not have excessive power drain, has realized the demand of slimming, is a great breakthrough for the touch-screen field.
Description of drawings
Fig. 1 is the cross-sectional view of first embodiment of the invention touch-control liquid crystal display panel.
Fig. 2 has the synoptic diagram of the touch-control marking layer of self similarity pattern for a certain sub-pixel.
Fig. 3 is the cross-sectional view of second embodiment of the invention touch-control liquid crystal display panel.
Fig. 4 a is the synoptic diagram that each sub-pixel of pixel all has the touch-control marking layer of self similarity pattern.
Fig. 4 b is the synoptic diagram that any two sub-pixels have the touch-control marking layer of self similarity pattern in the pixel.
Fig. 4 c is the synoptic diagram that any one sub-pixel has the touch-control marking layer of self similarity pattern in the pixel.
Fig. 5 is the synoptic diagram of touch-control liquid crystal display panel control mosaic screen.
Fig. 6 is the plan structure synoptic diagram of touch-control liquid crystal display panel of the present invention shown in Fig. 4 a.
Fig. 7 is the structural unit synoptic diagram of detecting device.
Embodiment
For make purpose of the present invention, technical scheme, and advantage clearer, below with reference to accompanying drawing and enumerate embodiment, the present invention is described in more detail.
Touch-control liquid crystal display comprises touch-control liquid crystal display panel and detecting device among the present invention.Touch-control liquid crystal display panel comprises first substrate and second substrate.The present invention is on existing LCD panel technology basis, the touch-control marking layer that will have the self similarity pattern is arranged on second substrate, be arranged on transparency carrier in the specific embodiment and to being applied to block the transistorized black matrix" (BlackMatrix of the first substrate upper film, BM) between, perhaps directly on the transparency carrier of second substrate, replace being applied to block the transistorized black matrix" of the first substrate upper film with the touch-control marking layer, thus the embedding of the information of realization.By detecting device the touch-control marking layer that has the self similarity pattern in the pixel is scanned detection, the result is fed back in the computer system, computer system is according to the information of detected touch-control marking layer, judge the physical location of pixel, and carry out the action of check point according to signal, finish touch function.The present invention is arranged on the touch-control marking layer with self similarity pattern in the display panels, detects identification touch-control marking layer by detecting device, realizes touch controllable function under the computer system effect.This display panels does not have extra power consumption, has realized the demand of slimming, is a great breakthrough for the touch-screen field.
The present invention utilizes synoptic diagram to describe in detail, when the embodiment of the invention is described in detail in detail, for convenience of explanation, the synoptic diagram of expression structure can be disobeyed general ratio and be done local the amplification, should be with this as limitation of the invention, in addition, in the making of reality, should comprise the three dimensions size of length, width and the degree of depth.
The self-similarity of above-mentioned self similarity pattern be the overall of complication system with partly between the similarity that fine structure or character had, whole essential characteristic can be embodied in the part of taking out from integral body in other words (local), i.e. unchangeability under geometry or the nonlinear transformation; Proterties on different amplification is similar, comprises that the broad sense that has similarity on the features such as geometry and form, process, information, function, character, energy, material (component), time, space is fractal.The self-similarity of a system is meant that the feature of certain structure or process all is similar from different space scales or time scale, perhaps the local character of certain system or structure or Local Structure and whole similar.In addition, also can there be self-similarity between integral body and the integral body or between part and the part.Self-similarity has the form of expression of more complicated generally speaking, rather than local amplification certain multiple overlaps with integral body later on simply fully.But, characterize the quantitative property such as the fractal dimension of self--similar systems or structure, can't the variation this point be called as flexible symmetry because of operation such as amplifying or dwindle.The present invention uses above-mentioned Self-similarity Theory, specific to pixel, has self-similarity between the pixel, also has self-similarity between the sub-pixel.Detecting device is by detecting this information with self-similarity, thereby determines the information of the pixel of detection position, thereby judges locations of pixels.
Fig. 1 is the cross-sectional view of first embodiment of the invention touch-control liquid crystal display panel, and it has disclosed the touch-control marking layer that making has the self similarity pattern between the transparency carrier of second substrate and BM.The touch-control marking layer 104 that transparency carrier 100 is provided with chromatic filter layer 105 and has the self similarity pattern, black matrix" 103 is arranged at the below of the touch-control marking layer 104 with self similarity pattern, the touch-control marking layer 104 that promptly has the self similarity pattern is between transparency carrier 100 and black matrix" 103, wherein black matrix" 103 effects have two: one, are used to block the thin film transistor (TFT) 102 on first substrate 101, prevent to influence the performance of TFT device because of light leak, the 2nd, be used to isolate chromatic filter layer, avoid colour mixture between the different filter layers.
Need to prove that the touch-control marking layer can be made in any position of panel viewing area, for example be made in the pixel region, but because the touch-control marking layer is opaque, so, if be made in the not corresponding position of black matrix" on, then can cause aperture opening ratio to reduce.Further, in order to guarantee the size of aperture opening ratio, the touch-control marking layer is made on the position corresponding with black matrix", here black matrix" is meant the black matrix" of the optional position on second substrate, wherein, present embodiment touch-control marking layer is made in and is used to block the corresponding position of BM of first substrate, 101 upper film transistors 102, the position that is the touch-control marking layer shown in Fig. 1 is one of them embodiment of the present invention, so the size of touch-control marking layer is less than or equal to being applied to block the size of the transistorized black matrix" of the first substrate upper film.
In an embodiment of the present invention, make touch-control marking layer 104 be embedded into process between black matrix" 103 and the transparency carrier 100 with self similarity pattern, be by any one modes such as printing, spraying, photoetching, the touch-control marking layer 104 that will have the self similarity pattern is produced on the transparency carrier 100, covers the touch-control marking layer 104 with self similarity pattern that is produced on the transparency carrier 100 with black matrix" 103 then.Wherein, the realization of above-mentioned photolithographicallpatterned, at first on transparency carrier 100, deposit the material that one deck is used to make the touch-control marking layer with self similarity pattern, then by MATLAB (MatrixLaboratory, the matrix experiment chamber) after computed in software obtains having the figure of self similarity pattern, with this graph copying to light shield, then with the figure transfer on the light shield to deposition materials, after exposure, development step, the touch-control marking layer 104 with self similarity pattern just is formed on the transparency carrier 100.The mode that forms touch-control marking layer 104 comprises printing, spraying and photoetching, but is not limited thereto, and has the color of the touch-control marking layer 104 of self similarity pattern, is preferably the material of white, but is not limited thereto, as long as different with the color of BM.In the time of above BM covers, just formed chequered with black and white striped, contrast be convenient to confirm, and information also is not easy to go wrong than higher like this.
Fig. 2 has the synoptic diagram of the touch-control marking layer of self similarity pattern for a certain sub-pixel.The touch-control marking layer is made up of a plurality of stripeds, the entrained self-similarity information of sub-pixel is unique, it is inequality promptly representing the fringe number and the striped width of the self-similarity of the sub-pixel with touch-control marking layer, so the location of pixels that the touch-control marking layer of the self similarity pattern that has on the sub-pixel is identified also is well-determined.
The touch-control marking layer with self similarity pattern of second embodiment of the invention is arranged on the position corresponding with black matrix" of transparency carrier, but, different with first embodiment is, this touch-control marking layer replaces the black matrix" of its corresponding position, promptly no longer form BM, thereby can save the use amount of BM material at surface of position with touch-control marking layer.As shown in Figure 3.The last lower glass substrate of liquid crystal cell, accompany the liquid crystal molecule (not shown) between first substrate 101 and second substrate, second substrate comprises a transparency carrier 100, the touch-control marking layer 304 that transparency carrier 100 is provided with chromatic filter layer 305 and has the self similarity pattern.Because the surface of touch-control marking layer 304 no longer forms BM, so, replace non-with touch-control marking layer 304 to being applied to block the black matrix" of first substrate, 101 upper film transistors 102 so present embodiment is preferably in order to prevent the light leak of first substrate, 101 upper film transistors 102.Wherein, on transparency carrier 100, make the process of touch-control marking layer 304 with self similarity pattern, still can adopt modes such as photoetching to realize, and has a color of the touch-control marking layer 304 of self similarity pattern, be preferably black, contrast is convenient to recognition and verification than higher like this, and information also is not easy to go wrong.Certainly other stripeds with obvious contrast colors also may be used in the touch-control marking layer 304.Touch-control marking layer 304 with self similarity pattern is preferably the material that adopts BM, is generally crome metal (Cr) or resin, just can produce the effect of BM, have the self similarity pattern touch-control marking layer 304 synoptic diagram as shown in Figure 2.Equally, Fig. 2 only is a synoptic diagram, and the quantity and the size of concrete striped obtain through accurate Calculation.
For clarity sake, other known configurations that have nothing to do with the present invention on first substrate 101 and second substrate among not shown Fig. 1 and Fig. 3, for example comprise many gate lines and data line on first substrate, many gate lines and data line square crossing are arranged and are defined pixel region, pixel electrode and thin film transistor (TFT) are formed in the pixel region, the grid of thin film transistor (TFT) connects gate line, and source electrode connects data line, and drain electrode connects pixel electrode; Correspondingly, on second substrate with the chromatic filter layer of pixel electrode correspondence position.Other do not repeat them here.
Arrangement mode with touch-control marking layer of self similarity pattern need be identical with the pixel arrangement mode of application liquid crystal display systems, and promptly the precision of touch-control marking layer is the precision of pixel.The touch-control marking layer only comprises a kind of absolute location information that identifies its accompanying pixel, and the absolute position of promptly accompanying pixel has uniqueness.
Each pixel comprises three sub-pixels of red, green, blue, so the present invention realizes the embedding of information three kinds of modes is arranged.
First kind of touch-control marking layer that mode all has the self similarity pattern for each sub-pixel, shown in Fig. 4 a (position of self similarity pattern on second substrate can as Fig. 1 or shown in Figure 3), this mode generally be used for combination and shows.By we are as can be seen among the figure, in three sub-pixels, the numbering of the touch-control marking layer sign mosaic screen with self similarity pattern of first sub-pixel, the physical address of the touch-control marking layer sign pixel X-axis in whole front panel with self similarity pattern of second sub-pixel, the physical address of the touch-control marking layer sign pixel Y-axis in whole front panel with self similarity pattern of the 3rd sub-pixel.Obviously, this is preferred embodiment, do the arrangement of random order in three sub-pixels that screen can also be numbered, these three kinds of the physical addresss of X-axis physical address and Y-axis are identified at pixel, but the touch-control marking layer sign order with self similarity pattern of three sub-pixels of a certain pixel is in case determine that then other pixels of whole front panel are all pressed this series arrangement.The display panel of this kind structure generally is used for the splicing form of a plurality of screens, promptly by a contact panel, controls the mosaic screen that a plurality of panels constitute.For example, by the mosaic screen form that 3 * 3 single screens are formed, by 9 Region control that correspondence position on the contact panel is divided, the pixel in each zone of contact panel all has the information of sign correspondence position Mosaic screen, and synoptic diagram as shown in Figure 5.Mosaic screen 510 is made of 9 single screens 501 among Fig. 5, is controlled by 9 zones 502 of dividing on the touch-control liquid crystal display panel 520 by computing machine respectively.Single screen 501 and zone 502 are one to one.Each pixel in this zone all comprises above-mentioned three kinds of signs, so positions of panels is by the absolute location information sign of the touch-control marking layer of the number information of mosaic screen and self similarity pattern, each information that has that the touch-control marking layer of self similarity pattern comprises is mutually different on the panel, therefore, each have the touch-control marking layer of self similarity pattern must can each pixel of mark or sub-pixel.Obviously, each has the touch-control marking layer difference of self similarity pattern, and then the information that comprises of each figure is also different.
Understand for convenience, have the touch-control marking layer shown in Fig. 4 a, the plan structure synoptic diagram of its touch-control liquid crystal display panel as shown in Figure 6.Fig. 6 is the situation that each sub-pixel all possesses self similarity pattern 601, is arranged on the transparency carrier 100, and chromatic filter layer 602 is corresponding to the pixel electrode of first substrate.As can be seen from the figure, each touch-control marking layer with self similarity pattern has nothing in common with each other in panel, so that each has the information that the touch-control marking layer of self similarity pattern comprises is also different, and can unique each pixel of mark definitely or sub-pixel.
The second way is the touch-control marking layer that any two sub-pixels have the self similarity pattern in the pixel, shown in Fig. 4 b.(position of touch-control marking layer on second substrate with self similarity pattern can be as Fig. 1 or shown in Figure 3).
Identify the X-axis of pixel in whole front panel and the physical address of Y-axis respectively in any two sub-pixels among the figure.The touch-control marking layer with self similarity pattern of the physical address of sign pixel X-axis or Y-axis is well-determined in whole front panel, that is to say by the X-axis of sign pixel and the physical address of Y-axis, just can determine this locations of pixels.
The third mode is the touch-control marking layer that any one sub-pixel has the self similarity pattern in the pixel, shown in Fig. 4 c.(position of touch-control marking layer on colored filter substrate with self similarity pattern can be as Fig. 1 or shown in Figure 3).
When only needing a touch-control marking layer with self similarity pattern just can identify whole pixel, need all pixels in the contrast whole front panel to come this sub-pixel is encoded, its pairing pixel absolute position in whole front panel of this sub-pixel pattern information sign is so that detecting device is discerned.
It should be noted that Fig. 4 b and 4c are not suitable for the situation of combination,, do not have to the mosaic screen numbering absolute location information sign that locations of pixels is comprised by the touch-control marking layer with self similarity pattern owing to have only a screen.
To have the touch-control marking layer embedding liquid crystal panel of self similarity pattern with above-mentioned any-mode after, need detect touch-control marking layer, could realize touch function with detecting device with self similarity pattern.Because the size of a pixel is at 100 microns to 200 microns the order of magnitude, so the detecting device that is used for the touch-control marking layer with self similarity pattern is detected is (when carrying out the identification of pixel physical address, accuracy of detection is more than or equal to a pixel), detected zone may be the scope of one or several pixels, physical location for definite pixel that will obtain, can pass through detecting device, the self similarity mode signal that recognizes pixel is differentiated, promptly set pixel priority or obtain the more pixel of signal, thereby finally determine this locations of pixels.Detecting device mainly comprises capturing unit 700, pattern recognition process unit 701 and data transmission unit 702, as shown in Figure 7.
Capturing unit 700 is used for display panels is carried out perception, and the touch-control marking layer signal with self similarity pattern that captures is sent to pattern recognition process unit 701; Pattern recognition process unit 701 receives the signal that capturing unit 700 transmits, and identification obtains the information that the touch-control marking layer of self similarity pattern is wherein comprised; Data transmission unit 702 sends to computer processing system with the information of above-mentioned identification, described computer processing system is connected with display panels, execution has the pairing action of information that the touch-control marking layer of self similarity pattern is comprised, and shows on screen.
Particularly, capturing unit 700 comprises laser diode, optical lens and detection probe.Capturing unit 700 adopts laser diode as light source, when the light that laser diode sends shines on the touch-control marking layer with self similarity pattern by optical lens, reflected light shines detection probe after focusing on through optical lens, it is the electric signal that produces touch-control marking layer on the photoelectric commutator with self similarity pattern, photoelectric commutator sends to pattern recognition process unit 701 with the electric signal of this figure, mode decoder decoding in pattern recognition process unit 701, decoded signal is sent to computer processing system by the information sending module in the data transmission unit 702, after computer processing system is received decoded signal, thereby determine locations of pixels.Detecting device and computer processing system can be realized by wireless or wire transmission mode.
In sum, the touch-control marking layer that will have the self similarity pattern is embedded in the display panels, specifically, the touch-control marking layer that will have the self similarity pattern is arranged on the transparency carrier of second substrate, preferably be located at the position of corresponding black matrix" on the transparency carrier, be arranged on transparency carrier in the specific embodiment and be used to block between the transistorized black matrix" of the first substrate upper film, perhaps directly on the transparency carrier of second substrate, be provided with touch-control marking layer with self similarity pattern, this touch-control marking layer replaces non-to being applied to block the black matrix" of the thin film transistor (TFT) on first substrate, the check point of detecting device can detect the information of each pixel, has realized the accurate contraposition of touch point thus.The present invention directly is provided with the touch-control marking layer with self similarity pattern in display panels, it is in light weight and occupation space is very little, and does not have power consumption, has realized the demand of slimming.
Though the present invention with preferred embodiment openly as above; but be not to be used for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (9)
1. a touch-control liquid crystal display panel comprises first substrate and second substrate, and described first substrate comprises a plurality of pixel regions, and thin film transistor (TFT) TFT is positioned at pixel region; Described second substrate comprises a transparency carrier, it is characterized in that, this transparency carrier is provided with the touch-control marking layer with self similarity pattern; Judge locations of pixels by detected information with touch-control marking layer of self similarity pattern.
2. panel as claimed in claim 1 is characterized in that, described touch-control marking layer is arranged on the position corresponding with black matrix" on the transparency carrier.
3. panel as claimed in claim 2 is characterized in that, described touch-control marking layer is arranged between described transparency carrier and the described black matrix".
4. panel as claimed in claim 3, it is characterized in that, described touch-control marking layer is arranged on described transparency carrier and to being applied to block between the transistorized black matrix" of the first substrate upper film, the size of described touch-control marking layer is less than or equal to described to being applied to block the size of the transistorized black matrix" of the first substrate upper film.
5. panel as claimed in claim 2 is characterized in that, described touch-control marking layer is arranged on the non-corresponding on the transistorized black matrix" of first substrate film position of transparency carrier, is used to replace the black matrix" of its corresponding position.
6. as each described panel of claim 1 to 5, it is characterized in that, each pixel comprises three sub-pixels, and each sub-pixel of described pixel all has the touch-control marking layer, is used for identifying the physical address of numbering, X-axis and the Y-axis of the mosaic screen that this pixel controls at panel; Perhaps, any two sub-pixels of described pixel have the touch-control marking layer, are used for identifying the physical address of this pixel in the X-axis and the Y-axis of panel; Perhaps, any one sub-pixel of described pixel has the touch-control marking layer, is used to identify the coding of this pixel.
7. panel as claimed in claim 6 is characterized in that, the precision of described touch-control marking layer is the precision of pixel.
8. a touch-control liquid crystal display is characterized in that, comprises having claim 1 to 7 each described touch-control liquid crystal display panel and detecting device;
Described detecting device is used for described touch-control marking layer is detected.
9. display as claimed in claim 8 is characterized in that described detecting device comprises capturing unit, pattern recognition process unit and data transmission unit;
Capturing unit is used for display panels is carried out perception, and the signal of the touch-control marking layer that captures is sent to the pattern recognition process unit;
The pattern recognition process unit receives the signal that capturing unit transmits, and identification obtains the information that the touch-control marking layer is comprised;
Data transmission unit sends to computer processing system with the information of above-mentioned identification, realizes touching Presentation Function after system handles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101462276A CN101581847B (en) | 2009-06-24 | 2009-06-24 | Touch-control liquid crystal display panel and liquid crystal display |
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| CN2009101462276A CN101581847B (en) | 2009-06-24 | 2009-06-24 | Touch-control liquid crystal display panel and liquid crystal display |
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| CN101581847B true CN101581847B (en) | 2011-09-07 |
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| CN102955288B (en) * | 2012-10-29 | 2016-01-06 | 京东方科技集团股份有限公司 | A kind of color membrane substrates, method for making and lcd touch display device |
| CN206421359U (en) * | 2016-12-20 | 2017-08-18 | 广州视源电子科技股份有限公司 | Colored filter and touch control display apparatus |
| CN111857633A (en) * | 2020-07-30 | 2020-10-30 | 京东方科技集团股份有限公司 | Display unit and spliced screen |
| CN112558816B (en) * | 2020-12-25 | 2024-03-12 | 昆山龙腾光电股份有限公司 | Touch substrate testing device and touch substrate testing method |
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Address after: 215301 No. 1, Longteng Road, Kunshan, Jiangsu Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301 No. 1, Longteng Road, Kunshan, Jiangsu Patentee before: Kunshan Longteng Optronics Co., Ltd. |