CN204988604U - Display substrates and display device , pressure detection system - Google Patents
Display substrates and display device , pressure detection system Download PDFInfo
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- CN204988604U CN204988604U CN201520748969.7U CN201520748969U CN204988604U CN 204988604 U CN204988604 U CN 204988604U CN 201520748969 U CN201520748969 U CN 201520748969U CN 204988604 U CN204988604 U CN 204988604U
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Abstract
An embodiment of the utility model provides a display substrates and display device, pressure detection system relates to and shows technical field, can be integrated in display substrates with ambient pressure testing capabilities to improve people's convenience of carrying of article while being out. Wherein, display substrates includes the substrate base plate, and is located ambient pressure's pressure sensing structure is tested to being used for on the substrate base plate, and the pressure sensing structure is including relative first pressure -sensitive electrode and the pressure -sensitive electrode of second that sets up to and be located the insulating pillar that a plurality of intervals between first pressure -sensitive electrode and the pressure -sensitive electrode of second set up, first pressure -sensitive electrode contacts with the substrate base plate.
Description
Technical field
The utility model relates to display technique field, particularly relates to a kind of display base plate and display device, pressure detecting system.
Background technology
Along with improving constantly of living standard, people more and more pay close attention to the healthy of self, and the life that may impact health or environmental factor.The passenger of such as high-altitude flight, pilot and outdoor mountain-climbing, exploration user; Or, for the personnel worked in submarine, and diving user, need to be grasped air pressure or the hydraulic pressure of periphery, to judge whether to conform to the fitness of self.But in prior art, generally adopt independently device to test air pressure or hydraulic pressure.Because this increasing the quantity of belongings when people go out, reduce the convenience that article carry.
Utility model content
Embodiment of the present utility model provides a kind of display base plate and display device, pressure detecting system, can be integrated in display base plate by environmental pressure test function, to improve the convenience that when people go out, article carry.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
The one side of the utility model embodiment, a kind of display base plate is provided, comprise underlay substrate, also comprise the pressure sensing structure for test environment pressure be positioned on described underlay substrate, described pressure sensing structure comprises the first pressure sensitive electrodes and the second pressure sensitive electrodes that are oppositely arranged, and the multiple spaced insulation column between described first pressure sensitive electrodes and described second pressure sensitive electrodes; Described first pressure sensitive electrodes contacts with described underlay substrate.
Preferably, the black matrix be positioned on described underlay substrate is also comprised; Described pressure sensing structure is between described black matrix and described underlay substrate.
Preferably, also comprise colored film layer, described colored film layer is made up of the first color pattern, the second color pattern and the 3rd color pattern; Described display base plate comprises viewing area and is positioned at the non-display area of described viewing area periphery; Described pressure sensing structure is positioned at described non-display area.
Preferably, also comprise common electrode layer, between described common electrode layer and described second pressure sensitive electrodes, comprise at least one material formed in described first color pattern, described second color pattern and described 3rd color pattern.
Preferably, also comprise black matrix, described insulation column and described black matrix are with the same material of layer.
Preferably, described second pressure sensitive electrodes and described common electrode layer are with the same material of layer; Described insulation column is formed by stacking successively by least one material formed in described first color pattern, described second color pattern, described 3rd color pattern and described black matrix.
Preferably, described underlay substrate is provided with thin film transistor (TFT) array, described thin film transistor (TFT) is bottom-gate-type transistor, and the grid of described first pressure sensitive electrodes and described thin film transistor (TFT) is with the same material of layer; The gate insulator of described insulation column and the described grid of covering is with the same material of layer.
Preferably, described underlay substrate is provided with thin film transistor (TFT) array, described thin film transistor (TFT) is top gate-type transistors, is provided with metal light shield layer between described thin film transistor (TFT) and described underlay substrate, and covers the cushion of described metal light shield layer; Described first pressure sensitive electrodes and described metal light shield layer are with the same material of layer; Described insulation column and described cushion are with the same material of layer.
Preferably, comprise electrode dielectric layer, described electrode dielectric layer is arranged at the side of described second pressure sensitive electrodes away from described underlay substrate, and described second pressure sensitive electrodes contacts with described electrode dielectric layer, and described electrode dielectric layer is provided with OLED light-emitting component away from the side of described underlay substrate.
Preferably, also comprise colored film layer, and be positioned at the common electrode layer of described colored film layer away from described underlay substrate side; Insulation course is provided with between described second pressure sensitive electrodes and described common electrode layer.
Preferably, the material forming described first pressure sensitive electrodes or the second pressure sensitive electrodes comprises at least one in Graphene, carbon nano-tube, Nano Silver and tin indium oxide, indium zinc oxide.
The another aspect of the utility model embodiment, provides a kind of display device to comprise any one display base plate as above.
The another aspect of the utility model embodiment, provides one to comprise display device as above, pressure signal collector, data processor; Described pressure signal collector is connected with the first pressure sensitive electrodes in the pressure sensing structure of described display device, the second pressure sensitive electrodes and described data processor, for gathering the capacitance between described first pressure sensitive electrodes and described second pressure sensitive electrodes, and export collection result to described data processor; Described data processor also connects described display device, converts force value to, and export described display device to for the capacitance collected by described pressure signal collector, makes described display device show described force value.
Preferably, storer, comparer is also comprised; Described comparer is connected with described data processor, described storer and described display device, for receiving the force value that described data processor exports, and the pressure threshold stored in described force value and described storer is compared, when the force value that described data processor exports is greater than described pressure threshold, send cue to described display device, make described display device according to described cue display reminding message.
The utility model embodiment provides a kind of display base plate and display device, pressure detecting system.Wherein, described display base plate comprises underlay substrate, and for the pressure sensing structure of test environment pressure, described pressure sensing structure comprises the first pressure sensitive electrodes and the second pressure sensitive electrodes that are oppositely arranged, and the multiple spaced insulation column between described first pressure sensitive electrodes and described second pressure sensitive electrodes; Described first pressure sensitive electrodes contacts with described underlay substrate.
So, an electric capacity can be formed between the first pressure sensitive electrodes and the second pressure sensitive electrodes.When air pressure or hydraulic pressure act on underlay substrate, above-mentioned underlay substrate generation micro-deformation can be made.In the case, the first pressure sensitive electrodes contacted with underlay substrate can deform under the effect of above-mentioned micro-deformation, thus the spacing between the first pressure sensitive electrodes and the second pressure sensitive electrodes is changed, cause the capacitance between the first pressure sensitive electrodes and the second pressure sensitive electrodes to change.Namely corresponding pressure value can be drawn by gathering above-mentioned capacitance and converting.
In addition, because above-mentioned pressure sensing structure is integrated in display base plate, and the application of display base plate in some portable display apparatus fields widely.Therefore, when this display base plate is applied to above-mentioned display device, can be shown being detected the pressure value obtained by pressure sensing structure by display device, or above-mentioned pressure value and the pressure threshold set be compared, the display reminding information when exceeding above-mentioned threshold value.Thus can be convenient on the basis that user carries, air pressure to external world or hydraulic pressure detect.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the pressure sensing structure that Fig. 1 provides for the utility model embodiment;
Fig. 2 is integrated in a kind of structural representation of color membrane substrates for the pressure sensing structure described in Fig. 1;
The viewing area of the display base plate that Fig. 3 provides for the utility model embodiment and the partition structure schematic diagram of non-display area;
Fig. 4 is integrated in the another kind of structural representation of color membrane substrates for the pressure sensing structure described in Fig. 1;
Fig. 5 is integrated in another structural representation of color membrane substrates for the pressure sensing structure described in Fig. 1;
Fig. 6 a for the pressure sensing structure described in Fig. 1 be integrated in array base palte time, a kind of setting position schematic diagram of pressure sensing structure;
Fig. 6 b for the pressure sensing structure described in Fig. 1 be integrated in array base palte time, the another kind of setting position schematic diagram of pressure sensing structure;
Fig. 7 is integrated in a kind of structural representation of array base palte for the pressure sensing structure described in Fig. 1;
Fig. 8 is integrated in the another kind of structural representation of array base palte for the pressure sensing structure described in Fig. 1;
Fig. 9 is integrated in the another kind of structural representation of OLED display panel for the pressure sensing structure described in Fig. 1;
The structural representation of a kind of pressure detecting system that Figure 10 provides for the utility model embodiment;
The process flow diagram of a kind of pressure detection method that Figure 11 provides for the utility model embodiment.
Reference numeral:
01-color membrane substrates; 02-underlay substrate; 03-liquid crystal; 10-underlay substrate; 101-viewing area; 102-non-display area; The black matrix of 11-; 12-colored film layer; 13-common electrode layer; 14-insulation course; 20-induction electrode structure; 201-first pressure sensitive electrodes; 202-second pressure sensitive electrodes; 203-insulation column; 210-pixel electrode; 211-grid; 212-gate insulator; 213-semiconductor active layer; 214-source-drain electrode; 215-metal light shield layer; 216-cushion; 30-electrode dielectric layer; 31-OLED light-emitting component; 310-first electrode layer; 311-electron injecting layer; 312-electron transfer layer; 313-organic luminous layer; 314-hole transmission layer; 315-hole injection layer; 316-the second electrode lay; 40-display device; 50-pressure signal collector; 60-data processor; 70-comparer; 80-storer.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of display base plate, comprise: underlay substrate 10 (illustrating at Fig. 2 or Fig. 4), and as shown in Figure 1, be positioned at the pressure sensing structure 20 for test environment pressure on above-mentioned underlay substrate 10, this pressure sensing structure can comprise the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202 be oppositely arranged, and the multiple spaced insulation column 203 between the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202.Further, the first pressure sensitive electrodes 201 contacts with underlay substrate 10.
It should be noted that, first, above-mentioned underlay substrate 10 is transparency carrier, concrete can be made up of glass or resin, for making various thin layer on the substrate.Such as, when above-mentioned display base plate is applied to liquid crystal indicator, this display base plate can be color membrane substrates, thus can prepare the pattern of black matrix, colored film layer on above-mentioned underlay substrate 10; Or above-mentioned display base plate can be array base palte, thus once prepares thin film transistor (TFT) array on above-mentioned underlay substrate 10.In addition, when above-mentioned display base plate is applied to OLED (OrganicLightEmittingDiode, Organic Light Emitting Diode) display device, above-mentioned underlay substrate 10 can be encapsulation cover plate, thus encapsulates OLED array.Or when display base plate is for making flexible display panels, above-mentioned underlay substrate 10 can also be made up of flexible and transparent resin material.
The second, in order to easily distinguish it, the pressure sensitive electrodes contacted with underlay substrate 10 is called the first pressure sensitive electrodes 201, what another and the first pressure sensitive electrodes 201 were oppositely arranged is called the second pressure sensitive electrodes 202.First pressure sensitive electrodes 201 relative to the second pressure sensitive electrodes 202 for, be not as shown in Figure 1, always near the bright dipping display side of display device, when pressure sensing structure 20 is arranged at dissimilar display base plate, the relative position between the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202 is different.Such as, as shown in Figure 2, when display base plate is color membrane substrates, underlay substrate 10 due to color membrane substrates is positioned at the bright dipping display side of display device, therefore the first pressure sensitive electrodes 201 contacted with underlay substrate 10, for the second pressure sensitive electrodes 202, near the bright dipping display side of display device.Again such as, as shown in Figure 7 when display base plate is array base palte, underlay substrate 10 due to array base palte is positioned at the side of display device away from bright dipping display side, therefore the first pressure sensitive electrodes 201 contacted with underlay substrate 10 is for the second pressure sensitive electrodes 202, and the bright dipping away from display device shows side.
Three, the material of above-mentioned formation first pressure sensitive electrodes 201 or the second pressure sensitive electrodes 202 can comprise some transparent conductive materials, such as, at least one in Graphene, carbon nano-tube, Nano Silver and tin indium oxide, indium zinc oxide.Because the voltage-dependent characteristic of Graphene or carbon nano-tube is higher, at least one in Graphene or carbon nano-tube therefore preferably can be adopted.In addition, the material forming above-mentioned insulation column 203 can select the resin material of insulation, such as at the Other substrate materials that display field is conventional, or according to the difference of display base plate, the resin material adopted during this display base plate of preparation can also be adopted in preparation process.
Four, the pattern of the first pressure sensitive electrodes 201 and insulation column 203 can be formed on underlay substrate 10 successively by patterning processes.But need to form certain spacing by insulation column 203 due to the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202 support.Therefore preparing in pressure sensing structure 20 process, needing the second pressure sensitive electrodes 202 thin slice (film) structure prepared to be attached at insulation column 203.Thus make can form electric capacity between the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202.
When five, acting on the first pressure sensitive electrodes 201 of display base plate due to environmental pressure, the whole surface of the first pressure sensitive electrodes 201 all can be subject to the effect of above-mentioned environmental pressure.And when the finger touch display base plate of user, user's applied pressure only acts on the local surfaces with the first pressure sensitive electrodes 201.Therefore can for the difference of the first pressure sensitive electrodes 201 lifting surface area, corresponding algorithm is set, pressure when can distinguish environmental pressure and user's touch-control to make display base plate, thus avoid the pressure produced during user's touch-control on the impact of environmental pressure test result.
Six, the patterning processes described in the utility model embodiment can refer to comprise photoetching process, or, comprise photoetching process and etch step, other techniques for the formation of predetermined pattern such as printing, ink-jet can also be comprised simultaneously; Photoetching process, refers to that utilize photoresist, mask plate, the exposure machine etc. that comprise the technological processs such as film forming, exposure, development form the technique of figure.Can according to the structure choice formed in the utility model corresponding patterning processes.
Wherein, a patterning processes in the utility model embodiment, be to form different exposure areas by a mask exposure technique, then the removal such as multiple etching, ashing technique carried out to different exposure areas and finally obtain expecting that pattern is the explanation that example is carried out.
The display base plate that the utility model embodiment provides comprises underlay substrate, and for the pressure sensing structure of test environment pressure, pressure sensing structure comprises the first pressure sensitive electrodes and the second pressure sensitive electrodes that are oppositely arranged, and the multiple spaced insulation column between the first pressure sensitive electrodes and the second pressure sensitive electrodes; First pressure sensitive electrodes contacts with underlay substrate.
So, an electric capacity can be formed between the first pressure sensitive electrodes and the second pressure sensitive electrodes.When air pressure or hydraulic pressure act on underlay substrate, above-mentioned underlay substrate generation micro-deformation can be made.In the case, the first pressure sensitive electrodes contacted with underlay substrate can deform under the effect of above-mentioned micro-deformation, thus the spacing between the first pressure sensitive electrodes and the second pressure sensitive electrodes is changed, cause the capacitance between the first pressure sensitive electrodes and the second pressure sensitive electrodes to change.Namely corresponding pressure value can be drawn by gathering above-mentioned capacitance and converting.
In addition, because above-mentioned pressure sensing structure is integrated in display base plate, and the application of display base plate in some portable display apparatus fields widely.Therefore, when this display base plate is applied to above-mentioned display device, can be shown being detected the pressure value obtained by pressure sensing structure by display device, or above-mentioned pressure value and the pressure threshold set be compared, the display reminding information when exceeding above-mentioned threshold value.Thus can be convenient on the basis that user carries, air pressure to external world or hydraulic pressure detect.
Below by way of specific embodiment, detailed illustrating is carried out to the display base plate being provided with above-mentioned pressure sensing structure 20.
Embodiment one
In the present embodiment, for above-mentioned display base plate for color membrane substrates 01 is described.
In the case, as shown in Figure 2, display base plate comprises the black matrix 11 be positioned on underlay substrate 10, and pressure sensing structure 20 is between black matrix 11 and underlay substrate 10.Wherein, above-mentioned color membrane substrates 01 also comprises black matrix 11 and colored film layer 12.This colored film layer 12 is made up of the first color pattern, the second color pattern and the 3rd color pattern.Above-mentioned first color, the second color and the 3rd color can be respectively and form trichromatic redness, green and blue, or can also be cyan, magenta, yellow.The utility model does not limit this.But following examples are all with the first color for red (R), and the second color is green (G), and the 3rd color is the explanation that blue (B) carries out for example.
In addition, when above-mentioned display base plate (color membrane substrates 01) is applied to TN (TwistNematic, twisted-nematic) type display device time, as shown in Figure 2, this display base plate also comprises colored film layer 12 and is positioned at the common electrode layer 13 of this colored film layer 12 away from underlay substrate 10 side.In the case, display base plate as shown in Figure 3, can comprise viewing area 101 (i.e. AA district, English: AtiveArea, Chinese: territory, effective display area) and be positioned at the non-display area 102 of viewing area 101 periphery.Due to as shown in Figure 2, at non-display area 102 place of display base plate, without the need to arranging colored film layer 12 and black matrix between common electrode layer 13 and the second pressure sensitive electrodes 202, therefore in order to prevent the second pressure sensitive electrodes 202 pairs of common electrode layer 13 from causing signal disturbing, insulation course 14 can be set between the second pressure sensitive electrodes 202 and common electrode layer 13.
It should be noted that, above-mentioned TN type display device is the liquid crystal display adopting vertical electric field principle, forms by being oppositely disposed between public electrode 13 on color membrane substrates 01 and the pixel electrode (not shown) on array base palte 02 liquid crystal 03 that vertical electric field drives nematic mode.Vertical electric field liquid crystal display has the advantage of large aperture ratio.
In addition, in order to improve the transmitance of display base plate, pressure sensing structure 20 can also be arranged at non-display area 102.Because non-display area 102 is arranged at the surrounding of viewing area 101.Therefore when pressure sensing structure 20 is arranged at non-display area 102, can at least side of viewing area 101, such as left side or right side arrange above-mentioned pressure sensing structure 20.The utility model does not limit this.
The utility model is not restricted this.Following examples are by when display base plate is color membrane substrates 01, and pressure sensing structure 20 being arranged at non-display area 102 is that the structure of example to display base plate is described in detail.Wherein, when display base plate is color membrane substrates 01, this color membrane substrates 01 above-mentioned comprises black matrix 11, colored film layer 12 and common electrode layer 13.This colored film layer 12 is made up of the first color pattern (R), the second color pattern (G) and the 3rd color pattern (B).
Embodiment two
In the present embodiment, above-mentioned display base plate is color membrane substrates 01, and pressure sensing structure 20 is arranged at non-display area 102.
Concrete, as shown in Figure 4, between common electrode layer 13 and the second pressure sensitive electrodes 202, comprise at least one material in formation first color pattern (R), the second color pattern (G) and the 3rd color pattern (B).In addition, insulation column 203 can with black matrix 11 with the same material of layer.
So, in the preparation process of above-mentioned color membrane substrates 01, the preparation of induction electrode structure 20 can just be completed.Concrete, first, on the surface of underlay substrate 10, the position of corresponding non-display area 102 forms the first pressure sensitive electrodes 201 by patterning processes, then on underlay substrate 10 and the first pressure sensitive electrodes 201, all applies thin film layer, and the material of this thin layer is identical with the material forming black matrix 11; Then by mask exposure, etching technics while the surface of underlay substrate 10 forms black matrix 11 pattern, form the pattern of insulation column 203 on the surface of the first pressure sensitive electrodes 201, thus make insulation column 203 and black matrix 11 with the same material of layer.Secondly above-mentioned same layer, can refer to that insulation column 203 and black matrix 11 are positioned at same level, or can also refer to that insulation column 203 and black matrix 11 are formed by a patterning processes simultaneously.Next, laminar second pressure sensitive electrodes 202 made is attached at the surface of insulation column 203, thus completes the preparation of induction electrode structure 20.Concrete, such as by mechanical arm, laminar second pressure sensitive electrodes 202 made can be positioned over the surface of insulation column 203, then by heat pressing process, the second pressure sensitive electrodes 202 be fixed on the surface of insulation column 203.
Certainly, the thin layer with insulation function be made up of other insulating material can also be comprised between common electrode layer 13 and the second pressure sensitive electrodes 202.
On this basis, while forming the first color pattern (R), the second color pattern (G) and the 3rd color pattern (B) successively by patterning processes, the stacked structure be formed by stacking successively by least one material formed in the first color pattern (R), the second color pattern (G) and the 3rd color pattern (B) can be formed on the surface of the second pressure sensitive electrodes 202.Then one deck common electrode layer 13 is prepared on the surface being formed with said structure.So, for TN type display device common electrode layer 13 is prepared on color membrane substrates 01, without the need to increasing separately the step preparing insulation course, to avoid the second pressure sensitive electrodes 202 on the impact of common electrode layer 13.Because the material forming colored film layer 12 is the resin material with insulating property.Therefore, can in the process preparing colored film layer 12, form the stacked structure that is formed by stacking successively by the material forming the first color pattern (R), the second color pattern (G) and the 3rd color pattern (B) as the insulation course between the second pressure sensitive electrodes 202 and common electrode layer 13.
Embodiment three
In the present embodiment, above-mentioned display base plate is color membrane substrates 01, and pressure sensing structure 20 is arranged at non-display area 102.Be with embodiment two difference, the material forming insulation column 203 is different, and can by common electrode layer 13 and the second pressure sensitive electrodes 202 multiplexing.
Concrete, as shown in Figure 5, the second pressure sensitive electrodes 202 and common electrode layer 13 are with the same material of layer.This insulation column 203 is formed by stacking successively by least one material formed in black matrix 11, first color pattern (R), the second color pattern (G) and the 3rd color pattern (B).
So, in the preparation process of above-mentioned color membrane substrates 01, the preparation of induction electrode structure 20 can be completed equally.Concrete, first, on the surface of underlay substrate 10, the position of corresponding non-display area 102 forms the first pressure sensitive electrodes 201 by patterning processes, then on underlay substrate 10, black matrix 11 is formed successively by patterning processes, first color pattern (R), second color pattern (G) and the 3rd color pattern (B), meanwhile, can be formed successively on the first pressure sensitive electrodes 201 by forming black matrix 11, first color pattern (R), the insulation column 203 of at least one material stacks in the second color pattern (G) and the 3rd color pattern (B).Next, forming the substrate surface of said structure, the laminar transparency conducting layer made is attached thereon, thus form common electrode layer 13 in position, corresponding viewing area 101, form the second pressure sensitive electrodes 202 in the position of corresponding non-display area 102, make the second pressure sensitive electrodes 202 with common electrode layer 13 with the same material of layer.Achieve the multiplexing of common electrode layer 13 and the second pressure sensitive electrodes 202, wherein in order to make the common electrode layer 13 formed can be better with black matrix 11 and colored film layer 12 degree of laminating, the higher carbon nano-tube material of pliability can be selected to form above-mentioned transparency conducting layer.
For the scheme that embodiment two provides, in the present embodiment, when the second pressure sensitive electrodes 202 is connected with common electrode layer 13, first pressure sensitive electrodes 202 and common electrode layer 13 can be same layer thin layer, therefore this thin layer both can use as the first pressure sensitive electrodes 202, also can use as common electrode layer 13, make common electrode layer 13 and the second pressure sensitive electrodes 202 can be multiplexing, so without the need to special process or step, common electrode layer 13 and the second pressure sensitive electrodes 202 are disconnected in preparation process.Thus can manufacture craft be simplified.
In sum, above-described embodiment is all be the explanation that color membrane substrates 01 carries out for example with display base plate.Certainly this display base plate can also be the array base palte 02 being applied to field of liquid crystal display, or can also be the array base palte 02 being applied to OLED display field.
Wherein, when above-mentioned display base plate is array base palte 02, as shown in Fig. 6 a or Fig. 6 b, array base palte comprises many grid line GATE and the data line DATA of transverse and longitudinal intersection, and grid line and data line intersection define the pixel cell Pixel of multiple arrangement in matrix form.Be provided with a thin film transistor (TFT) TFT in each pixel cell, thus define tft array on the underlay substrate 10 of array base palte 02.And the drain electrode of each TFT is connected with pixel electrode 210.
In the case, as shown in Figure 6 a, pressure sensing structure 20 can be arranged at region corresponding to above-mentioned pixel cell Pixel.Or the region as shown in Figure 6 b pressure sensing structure 20 is arranged at beyond respective pixel unit Pixel.Based on this, pressure sensing structure 20 can be all set in each pixel cell Pixel, also optionally pressure sensing structure 20 can be set in several pixel cell Pixel.In addition, can also as shown in Figure 3, pressure sensing structure 20 be arranged in non-display area 101.The utility model is not restricted this.
Because TFT can be divided into bottom gate type TFT and top gate type TFT.Dissimilar by according to TFT of following examples, is described scheme pressure sensing structure 20 being integrated in array base palte 20.
Embodiment four
In the present embodiment, display base plate is array base palte 02, and the TFT on array base palte 02 is bottom gate type TFT.Concrete, as shown in Figure 7, grid 211 contacts with underlay substrate 10, gate insulator 212 cover gate 211.Therefore grid 211 is for gate insulator 212, closer to underlay substrate 10, thus constitutes bottom gate type TFT.
In the case, the first pressure sensitive electrodes 201 in pressure sensing structure 20 can with the grid 211 of thin film transistor (TFT) TFT with the same material of layer, and insulation column 203 can with the gate insulator 212 of cover gate 211 with the same material of layer.So, in the process making TFT, the first pressure sensitive electrodes 201 of pressure sensing structure 20 and the preparation of insulation column 203 can just be completed.
Concrete, first can deposit one deck gate metal layer on underlay substrate 10, then be formed the pattern of grid 211 and the first pressure sensitive electrodes 201 by patterning processes simultaneously.Then, apply one deck gate insulator at the substrate surface being formed with above-mentioned pattern, next form multiple spaced insulation column 203 by patterning processes in the position of corresponding first pressure sensitive electrodes 201.Then, the thin slice prepared (film) shape second pressure sensitive electrodes 202 is attached at the surface of insulation column 203, thus completes the preparation of pressure sensing structure 20.Next formed the source-drain electrode 214 etc. of semiconductor active layer 213 and TFT successively on the surface of gate insulator 212 by follow-up patterning processes.
Embodiment five
In the present embodiment, display base plate is array base palte 02, and the TFT on array base palte 02 is top gate type TFT.Concrete, as shown in Figure 8, therefore grid 211 is for gate insulator 212, further from underlay substrate 10, thus constitutes top gate type TFT.And the channel region in order to prevent light to be irradiated to TFT, can on the surface of underlay substrate 10, the position of corresponding TFT channel region arranges metal light shield layer 215.Thus light can be avoided to shine directly into the channel region of TFT, cause the leakage current of TFT to increase.In addition, because metal light shield layer 215 adopts metal material to prepare, the cushion 216 at surface coverage one deck of metal light shield layer 215 with insulating property is therefore also needed.
In the case, the first pressure sensitive electrodes 201 in pressure sensing structure 20 can with metal light shield layer 205 with the same material of layer, and insulation column 203 and cushion 216 are with the same material of layer.So, in the process making TFT, the preparation of pressure sensing structure 20 can just be completed.Its concrete manufacturing process can reference example four.Repeat no more herein.
In addition, the TFT structure in the present embodiment adopts bigrid, namely has two grids 211.So can increase the length of TFT zone raceway groove, and the leakage current of the length of this raceway groove and TFT is inversely proportional to, therefore said structure can reduce the leakage current of TFT further.
In sum, embodiment four and embodiment five take display base plate as the explanation that array base palte 02 carries out for example.In addition, when display base plate comprises OLED light-emitting component.The concrete set-up mode of pressure sensing structure 20 as described in the following Examples.
Embodiment six
As shown in Figure 9, this display base plate comprises electrode dielectric layer 30, and this electrode dielectric layer 30 is arranged at the side of the second pressure sensitive electrodes 202 away from underlay substrate 10, and this second pressure sensitive electrodes contacts with electrode dielectric layer 30.And the first pressure sensitive electrodes 201 contacts with underlay substrate 10.In addition, this electrode dielectric layer 30 is provided with OLED light-emitting component 31 away from the side of underlay substrate 10.Wherein this OLED light-emitting component 31 can comprise the first electrode layer 310, electron injecting layer 311, electron transfer layer 312, organic luminous layer 313, hole transmission layer 314, hole injection layer 315 and the second electrode lay 316 that are positioned at electrode dielectric layer 30 surface successively.It should be noted that, the first electrode layer 310 can be negative electrode, and the second electrode lay 316 can be anode.Because OLED light-emitting component 31 can be divided into top emission type and bottom emitting type.For top-emitting OLED light-emitting component 31, above-mentioned first electrode layer 310 is transparency electrode, and the second electrode lay 316 can be opaque.For bottom emitting type OLED light-emitting component 31, the first electrode layer 310 is opaque electrode, and the second electrode lay 316 can be transparency electrode.The utility model does not limit this.
On this basis, pressure sensing structure 20 can between underlay substrate 10 and electrode dielectric layer 30, and the first pressure sensitive electrodes 201 contacts with underlay substrate 10, and the second pressure sensitive electrodes 202 contacts with electrode dielectric layer 30.Thus pressure sensing structure 20 can be integrated in OLED display panel.
The utility model embodiment provides a kind of display device, also comprises any one display base plate as above.There is the structure identical with the display base plate that previous embodiment provides and beneficial effect.Because previous embodiment is described in detail the structure of display base plate and beneficial effect, repeat no more herein.
It should be noted that, in the utility model embodiment, display device specifically can comprise liquid crystal indicator, and such as this display device can be any product or parts with Presentation Function such as liquid crystal display, LCD TV, digital album (digital photo frame), mobile phone or panel computer.
The utility model embodiment provides a kind of pressure detecting system, as shown in Figure 10, comprises display device 40 as above, pressure signal collector 50, data processor 60.
Concrete, pressure signal collector 50 is connected with the first pressure sensitive electrodes 201, second pressure sensitive electrodes 202 in the pressure sensing structure 20 of display device 40 and data processor 60, for gathering the capacitance between the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202, and export collection result to data processor 60.
This data processor also connects display device 40, converts force value to, and export display device 40 to for the capacitance collected by above-mentioned pressure signal collector 50, makes this display device 40 show described force value.
So, by pressure detecting system, air pressure to external world or hydraulic pressure can detect, and testing result is shown, thus facilitate user at any time air pressure to external world or hydraulic pressure have gained some understanding, thus can judge whether extraneous environment conforms to fitness.
On this basis, above-mentioned pressure detecting system also comprises storer 70 and comparer 80.
Wherein, comparer 70 is connected with data processor 60, storer 80 and display device 40, for receiving the force value that data processor 60 exports, and the pressure threshold stored in this force value and storer 80 is compared, when the force value that data processor 60 exports is greater than this pressure threshold, send cue to display device 40, make display device 40 according to described cue display reminding message.In the case, without the need to artificially whether adapting to force value and own bodies situation judge, but judged detecting the force value that obtains with pressure threshold by pressure detecting system, when exceeding threshold value by display device display reminding message, thus reach the effect warning user.So, avoid user voluntarily error in judgement cause causing bad impact to healthy.
It should be noted that, above-mentioned pressure threshold can user medical space test after, the ambient pressure value limit that is that obtain and that self can bear.When force value exceedes the above-mentioned limit, bad impact may be caused on the health of user.Or above-mentioned pressure threshold can also set according to the demand of user self.Such as, for some fishing fan, can set above-mentioned threshold value according to fish layering and activity in water, thus when display device 40 display reminding signal, can so that user catches fish.Certainly above-mentioned is only illustrating pressure threshold setting, and the utility model does not limit this.
The utility model embodiment provides a kind of method utilizing above-mentioned display device detected pressures, and as shown in figure 11, this detection method comprises:
Capacitance in S101, collection display device between the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202.Concrete, capacitance between the first pressure sensitive electrodes 201 and the second pressure sensitive electrodes 202 can be gathered by pressure signal collector 50, and export collection result to data processor 60.
S102, convert this capacitance to force value.Concrete, such as convert the capacitance that pressure signal collector 50 collects to force value by data processor 60, and export display device 40 to.
S103, this force value to be shown in display device 40.Concrete, such as by display device 40, this force value is shown.
So, by above-mentioned pressure detection method, air pressure to external world or hydraulic pressure can detect, and testing result is shown, thus facilitate user at any time air pressure to external world or hydraulic pressure have gained some understanding, thus can judge whether extraneous environment conforms to fitness
On this basis, said method also comprises:
This force value and pressure threshold are compared, when force value is greater than pressure threshold, display device 40 carries out display reminding message according to described cue.Concrete, such as comparer 70 receives the force value that data processor 60 exports, and the pressure threshold stored in described force value and storer 80 is compared, when the force value that data processor 60 exports is greater than pressure threshold, send cue to display device 41.Then, this display device 40 shows according to described cue.
In the case, without the need to artificially whether adapting to force value and own bodies situation judge, but judged detecting the force value that obtains with pressure threshold by pressure detecting system, when exceeding threshold value by display device display reminding signal, thus reach the effect warning user.So, both facilitated user, turn avoid user voluntarily error in judgement cause causing bad impact to healthy.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (14)
1. a display base plate, comprises underlay substrate, it is characterized in that,
Also comprise the pressure sensing structure for test environment pressure be positioned on described underlay substrate, described pressure sensing structure comprises the first pressure sensitive electrodes and the second pressure sensitive electrodes that are oppositely arranged, and the multiple spaced insulation column between described first pressure sensitive electrodes and described second pressure sensitive electrodes;
Described first pressure sensitive electrodes contacts with described underlay substrate.
2. display base plate according to claim 1, is characterized in that, also comprises the black matrix be positioned on described underlay substrate;
Described pressure sensing structure is between described black matrix and described underlay substrate.
3. display base plate according to claim 1, is characterized in that, also comprises colored film layer, and described colored film layer is made up of the first color pattern, the second color pattern and the 3rd color pattern; Described display base plate comprises viewing area and is positioned at the non-display area of described viewing area periphery; Described pressure sensing structure is positioned at described non-display area.
4. display base plate according to claim 3, it is characterized in that, also comprise common electrode layer, between described common electrode layer and described second pressure sensitive electrodes, comprise at least one material formed in described first color pattern, described second color pattern and described 3rd color pattern.
5. display base plate according to claim 4, is characterized in that, also comprises black matrix, and described insulation column and described black matrix are with the same material of layer.
6. display base plate according to claim 3, is characterized in that, also comprises common electrode layer, and is positioned at the black matrix on described underlay substrate;
Described second pressure sensitive electrodes and described common electrode layer are with the same material of layer;
Described insulation column is formed by stacking successively by least one material formed in described first color pattern, described second color pattern, described 3rd color pattern and described black matrix.
7. display base plate according to claim 1, is characterized in that,
Described underlay substrate is provided with thin film transistor (TFT) array, and described thin film transistor (TFT) is bottom-gate-type transistor, and the grid of described first pressure sensitive electrodes and described thin film transistor (TFT) is with the same material of layer; The gate insulator of described insulation column and the described grid of covering is with the same material of layer.
8. display base plate according to claim 1, it is characterized in that, described underlay substrate is provided with thin film transistor (TFT) array, described thin film transistor (TFT) is top gate-type transistors, be provided with metal light shield layer between described thin film transistor (TFT) and described underlay substrate, and cover the cushion of described metal light shield layer;
Described first pressure sensitive electrodes and described metal light shield layer are with the same material of layer;
Described insulation column and described cushion are with the same material of layer.
9. display base plate according to claim 1, it is characterized in that, comprise electrode dielectric layer, described electrode dielectric layer is arranged at the side of described second pressure sensitive electrodes away from described underlay substrate, and described second pressure sensitive electrodes contacts with described electrode dielectric layer, described electrode dielectric layer is provided with OLED light-emitting component away from the side of described underlay substrate.
10. display base plate according to claim 2, is characterized in that, also comprises colored film layer, and is positioned at the common electrode layer of described colored film layer away from described underlay substrate side;
Insulation course is provided with between described second pressure sensitive electrodes and described common electrode layer.
11. display base plates according to any one of claim 1-10, is characterized in that, the material forming described first pressure sensitive electrodes or the second pressure sensitive electrodes comprises at least one in Graphene, carbon nano-tube, Nano Silver and tin indium oxide, indium zinc oxide.
12. 1 kinds of display device, is characterized in that, comprise the display base plate as described in any one of claim 1-11.
13. 1 kinds of pressure detecting systems, is characterized in that, comprise display device as claimed in claim 12, pressure signal collector, data processor;
Described pressure signal collector is connected with the first pressure sensitive electrodes in the pressure sensing structure of described display device, the second pressure sensitive electrodes and described data processor, for gathering the capacitance between described first pressure sensitive electrodes and described second pressure sensitive electrodes, and export collection result to described data processor;
Described data processor also connects described display device, converts force value to, and export described display device to for the capacitance collected by described pressure signal collector, makes described display device show described force value.
14. pressure detecting systems according to claim 13, is characterized in that, also comprise storer, comparer;
Described comparer is connected with described data processor, described storer and described display device, for receiving the force value that described data processor exports, and the pressure threshold stored in described force value and described storer is compared, when the force value that described data processor exports is greater than described pressure threshold, send cue to described display device, make described display device according to described cue display reminding message.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520748969.7U CN204988604U (en) | 2015-09-24 | 2015-09-24 | Display substrates and display device , pressure detection system |
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| CN201520748969.7U CN204988604U (en) | 2015-09-24 | 2015-09-24 | Display substrates and display device , pressure detection system |
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| CN204988604U true CN204988604U (en) | 2016-01-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136378A (en) * | 2015-09-24 | 2015-12-09 | 京东方科技集团股份有限公司 | Display base plate, display device, pressure detection system and detection method thereof |
| CN109690272A (en) * | 2016-09-16 | 2019-04-26 | 日写株式会社 | Pressure sensor |
| CN109791080A (en) * | 2016-10-13 | 2019-05-21 | 日写株式会社 | Pressure sensor |
| WO2022193439A1 (en) * | 2021-03-19 | 2022-09-22 | 深圳市华星光电半导体显示技术有限公司 | Array substrate and manufacturing method, and display panel |
-
2015
- 2015-09-24 CN CN201520748969.7U patent/CN204988604U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136378A (en) * | 2015-09-24 | 2015-12-09 | 京东方科技集团股份有限公司 | Display base plate, display device, pressure detection system and detection method thereof |
| WO2017049872A1 (en) * | 2015-09-24 | 2017-03-30 | 京东方科技集团股份有限公司 | Display substrate, display apparatus, pressure detection system and detection method thereof |
| CN105136378B (en) * | 2015-09-24 | 2018-04-20 | 京东方科技集团股份有限公司 | A kind of display base plate and display device |
| US10234351B2 (en) | 2015-09-24 | 2019-03-19 | Boe Technology Group Co., Ltd. | Display substrate and display device, pressure detection system and detection method thereof |
| CN109690272A (en) * | 2016-09-16 | 2019-04-26 | 日写株式会社 | Pressure sensor |
| CN109690272B (en) * | 2016-09-16 | 2020-10-30 | 日写株式会社 | Pressure sensor |
| CN109791080A (en) * | 2016-10-13 | 2019-05-21 | 日写株式会社 | Pressure sensor |
| WO2022193439A1 (en) * | 2021-03-19 | 2022-09-22 | 深圳市华星光电半导体显示技术有限公司 | Array substrate and manufacturing method, and display panel |
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