Display module and display deviceTechnical field
The present invention relates to field of display technology, more particularly, to a kind of display module and display device.
Background technique
With the continuous development of display technology, comprehensive screen display device is because having biggish screen accounting and frame of ultra-narrow etc.Advantage and the favor for being increasingly subject to consumer.But these display equipment are on the one hand, in order to realize the functions such as shooting, fingerprint recognition,It would generally be in devices such as its front setting camera, fingerprint recognition keys；On the other hand, in order to meet the display need of different fieldIt asks, the special-shaped display screen, such as electronic watch etc. using non-rectangle shape is needed, so as to cause touch control electrode in special-shaped display areaLoad of the load value compared with other display area touch control electrodes be much smaller so that display equipment is in heavily loaded picture, abnormity is aobviousShow that partially bright phenomenon is presented in region, has seriously affected the homogeneity that display equipment is shown.
Therefore, how to reduce the display difference of special-shaped display area and other display areas be those skilled in the art urgentlyThe technical issues of solution.
Summary of the invention
In view of this, the present invention provides a kind of display module and display devices.
The present invention provides a kind of display modules, comprising: display panel, driving chip and multiple compensating electrodes；DisplayPanel includes viewing area, and viewing area includes multiple conventional touch control electrodes and multiple special-shaped touch control electrodes；Wherein, multiple conventional touch-controlsThe area of electrode is all the same, and the area of special-shaped touch control electrode is less than the area of conventional touch control electrode；
Each routine touch control electrode is electrically connected by first touch-control line and driving chip, and each abnormity touch control electrode is logicalCross second touch-control line and driving chip electrical connection；At least there is second touch-control line and compensating electrode is electrically connected.
The present invention also provides a kind of display devices, including display module provided by the invention.
Compared with prior art, display module and display device provided by the invention at least realize following beneficial effectFruit:
Second touch-control line and compensating electrode electrical connection carry out load compensation, contracting to special-shaped touch control electrode by compensating electrodeLoad difference between small abnormity touch control electrode and conventional touch control electrode improves the homogeneity that display panel picture is shown, effectivelyEnsure the display quality of display equipment.Since special-shaped touch control electrode is electrically connected by the second touch-control line and driving chip, thusCompensating electrode and special-shaped touch control electrode can provide electric signal by driving chip, it is not necessary that the signal wire of compensating electrode is in addition arrangedRoad advantageously reduces the complexity of manufacture craft, improves the production efficiency of display equipment.In addition, the quantity and ruler of compensating electrodeVery little to be arranged according to actual needs, operation is more flexible and convenient, can adapt to the production needs that different model shows equipment, usesRange is wider.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and itsAdvantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and evenWith its explanation together principle for explaining the present invention.
Fig. 1 is a kind of planar structure schematic diagram of display module provided in an embodiment of the present invention；
Fig. 2 is the planar structure schematic diagram of another display module provided in an embodiment of the present invention；
Fig. 3 is the planar structure schematic diagram of another display module provided in an embodiment of the present invention；
Fig. 4 is a kind of partial enlargement structural representation of display module shown in Fig. 3；
Fig. 5 is in Fig. 4 along the schematic diagram of the section structure in the direction a-a；
Fig. 6 is another partial enlargement structural representation of display module shown in Fig. 3；
Fig. 7 is in Fig. 6 along the schematic diagram of the section structure in the direction b-b；
Fig. 8 is another partial enlargement structural representation of display module shown in Fig. 3；
Fig. 9 is in Fig. 8 along the schematic diagram of the section structure in the direction c-c；
Figure 10 is another partial enlargement structural representation of display module shown in Fig. 3；
Figure 11 is in Figure 10 along the schematic diagram of the section structure in the direction d-d；
Figure 12 is the planar structure schematic diagram of another display module provided in an embodiment of the present invention；
Figure 13 is a kind of side structure schematic view of display module provided in an embodiment of the present invention；
Figure 14 is a kind of the schematic diagram of the section structure of Figure 13；
Figure 15 is the planar structure schematic diagram of another display module provided in an embodiment of the present invention；
Figure 16 is a kind of the schematic diagram of the section structure of display module shown in Figure 15；
Figure 17 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition havingBody explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originallyThe range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present inventionAnd its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitableIn the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, withoutIt is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang YiIt is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
It please refers to shown in Fig. 1 and Fig. 2, the present invention provides a kind of display modules, comprising: display panel 10, driving chip20 and multiple compensating electrodes 30；Display panel 10 includes viewing area AA, and viewing area AA includes 40 He of multiple conventional touch control electrodesMultiple abnormity touch control electrodes 50；Wherein, the area of multiple conventional touch control electrodes 40 is all the same, and the area of special-shaped touch control electrode 50 is smallIn the area of conventional touch control electrode 40；
Each routine touch control electrode 40 is electrically connected by first touch-control line 41 and driving chip 20, each abnormity touch-controlElectrode 50 is electrically connected by second touch-control line 51 and driving chip 20；At least there is second touch-control line 51 and compensation electricityPole 30 is electrically connected.
It should be noted that the technical solution in order to more intuitively illustrate the present embodiment, is not drawn into it in Fig. 1 and Fig. 2His structure.
Specifically, the capacitor for the touch control electrode that finger is touched changes when carrying out touch control operation to display panel 10,The electric signal for the touch-control line being electrically connected with the touch control electrode also changes therewith, and driving chip 20 can be by handling touch-control lineElectric signal obtain touch control operation occur more specific location information.Wherein, described touch control electrode is either conventional touch-control electricityPole 40, is also possible to special-shaped touch control electrode 50, namely conventional touch control electrode 40 and the abnormity function of touch control electrode 50 it is identical.
In order to place the devices such as camera, need to reserve certain device installation space, such as Fig. 1 on display panel 10In, the wherein side setting notch 11 of display panel 10 is used as device installation space；Alternatively, please referring to shown in Fig. 2, in display surfaceThe viewing area AA of plate 10 is directly arranged borehole 12 and is used as device installation space, and the shape of the borehole 12 can be round, ellipseDeng.Certainly, the set-up mode of device installation space can also be other, and the shape of device installation space can be according to realityIt needs to design, the present invention and is not specifically limited this, subsequent to repeat no more.In addition, in actual use, for aestheticsEtc. reasons, usually can also the top corner portion to display panel 10 carry out polishing or cutting process into arc-shaped, form such as Fig. 1 and figureApex angle area P in 2.
Any one presence of notch 11, borehole 12, apex angle area P can all make some conventional touch control electrodes in the AA of viewing area40 fall part by " cutting ", become special-shaped touch control electrode 50, and the area of special-shaped touch control electrode 50 is less than conventional touch control electrode at this time40 area.When the electric signal of the first touch-control line 41 and the second touch-control line 51 is identical or essentially identical, special-shaped touch control electrode 50There are biggish load differences with conventional touch control electrode 40, and then cause display panel 10 when showing picture, special-shaped touch-control electricityPartially bright phenomenon is presented in display area where the more conventional touch control electrode in 50 place display area of pole.
In the present embodiment, special-shaped touch control electrode 50 is electrically connected by the second touch-control line 51 and driving chip 20, the second touch-controlThe electrical connection of line 51 and compensating electrode 30, so as to carry out load capacitance value by 30 pairs of compensating electrode special-shaped touch control electrodes 50Compensation, the load difference between special-shaped touch control electrode 50 and conventional touch control electrode 40 is reduced, due to compensating electrode 30 and abnormityTouch control electrode 50 is electrically connected with the second touch-control line 51, so as to provide electric signal simultaneously by driving chip 20.
In the case where display module film layer structure determines, the size of actually required compensation load capacitance value can pass through controlThe quantity and size of compensating electrode 30 processed are realized.Certainly, the mode that compensating electrode 30 carries out load capacitance value compensation can have moreKind, the present embodiment is compared and is not specifically limited.
Display module provided in this embodiment, at least has the following technical effect that:
Second touch-control line and compensating electrode electrical connection carry out load compensation, contracting to special-shaped touch control electrode by compensating electrodeLoad difference between small abnormity touch control electrode and conventional touch control electrode improves the homogeneity that display panel picture is shown, effectivelyEnsure the display quality of display equipment.Since special-shaped touch control electrode is electrically connected by the second touch-control line and driving chip, thusCompensating electrode and special-shaped touch control electrode can provide electric signal by driving chip, it is not necessary that the signal wire of compensating electrode is in addition arrangedRoad advantageously reduces the complexity of manufacture craft, improves the production efficiency of display equipment.In addition, the quantity and ruler of compensating electrodeVery little to be arranged according to actual needs, operation is more flexible and convenient, can adapt to the production needs that different model shows equipment, usesRange is wider.
In some alternative embodiments, it please refers to shown in Fig. 3, display module further includes flexible circuit board 60, drives corePiece 20 is set in flexible circuit board 60；Second touch-control line 51 includes first connecting portion 511 and second connecting portion 512, wherein theOne interconnecting piece 511 is set on display panel 10, and is electrically connected with special-shaped touch control electrode 50；Second connecting portion 512 is set to softProperty wiring board 60 on, and one end of second connecting portion 512 and driving chip 20 are electrically connected, the other end of second connecting portion 512 andFirst connecting portion 511 is electrically connected.
In the present embodiment, flexible circuit board 60 (Flexible Printed Circuit, abbreviation FPC) is soft with what is insulatedProperty substrate (mainly polyimides or polyester film) made of printed circuit board, have that Distribution density is high, light-weight, thicknessThin, high reliability.After flexible circuit board 60 is electrically connected to the binding area of display panel 10, driving chip 20 can pass throughThe second connecting portion 512 being arranged in flexible circuit board 60 and the first connecting portion 511 being arranged on display panel 10 will be electricSignal is transmitted to special-shaped touch control electrode 50.Similarly, the first touch-control line 41 actually also includes two interconnecting pieces, and one of them is evenSocket part 411 is located on display panel 10, another interconnecting piece 412 is located in flexible circuit board 60, so that driving chip 20 can be withBy the two interconnecting pieces by electric signal transmission to conventional touch control electrode 40.
Since driving chip 20 is arranged in flexible circuit board 60, so that driving chip 20 will not occupy display panel 10Frame space is advantageously implemented the narrow frame of display equipment.
Optionally, please continue to refer to shown in Fig. 3, compensating electrode 30 is set in flexible circuit board 60, and compensating electrode 30It is electrically connected with second connecting portion 512.In the present embodiment, compensating electrode 30 can be co-located on flexible circuitry with driving chip 20On plate 60, so that compensating electrode 30 will not occupy the frame space of display panel 10, it is more advantageous to and realizes the narrow of display equipmentFrame.
In the following, specific set-up mode of the present invention at this to compensating electrode in flexible circuit board is illustratively saidIt is bright.
In some alternative embodiments, it please refers to shown in Fig. 4 and Fig. 5, compensating electrode 30 and the same material of second connecting portion 512Material is arranged with film layer.
Flexible circuit board 60 mainly includes flexible parent metal 61 and the copper product that 61 single or double of flexible parent metal is arranged inLayer, the surface of the copper material bed of material is realized by setting insulating cover 62 to be dielectrically separated from extraneous, and driving chip 20 can be setIt sets on the surface of insulating cover 62, insulating cover 62 can be epoxy resin.In the present embodiment, compensating electrode 30 and secondInterconnecting piece 512 can be adopted with material with film layer setting namely compensating electrode 30 and second connecting portion 512 in flexible circuit board 60It is patterned to be formed together with copper product, only insulating cover 62 need to be set far from the side of flexible parent metal 61 in the copper material bed of material at this time, effectively reduce the technology difficulty and production cost of compensating electrode 30.
Optionally, it please refers to shown in Fig. 6 and Fig. 7, although compensating electrode 30 is also with second connecting portion 512 the same as the same film layer of materialSetting, but the two is at intervals, and can be electrically connected between the two by connecting line 31, thus compensating electrode 30 and theTwo interconnecting pieces 512 still can provide electric signal by driving chip 20, and connecting line 31 can also be same with material with compensating electrode 30Also only insulating cover 62 need to be arranged far from the side of flexible parent metal 61 in the copper material bed of material at this time, on the one hand in film layer settingThe technology difficulty and production cost that can be effectively reduced compensating electrode 30, are on the other hand also beneficial to neatly select compensating electrode30 position in flexible circuit board 60 adapts to the various cabling requirements of flexible circuit board 60.
Optionally, it please refers to shown in Fig. 8 and Fig. 9, compensating electrode 30 and second connecting portion 512 can also be separately positioned on softProperty the opposite two sides of substrate 61, and second connecting portion 512 can be electrically connected by via hole 70 and compensating electrode 30, be needed at this time pointInsulating cover 62 is not set in the copper product layer surface where compensating electrode 30 and second connecting portion 512, although in certain journeyThe thicknesses of layers of flexible circuit board 60 is increased on degree, but not will receive the routes such as second connecting portion 512 due to compensating electrode 30The influence of arrangement, thus the area in design compensation electrode 30 and the more flexible side at the position in flexible circuit board 60Just.
Optionally, incorporated by reference to shown in reference Fig. 3, Figure 10 and Figure 11, compensating electrode 30 and second connecting portion 512 are respectively setIn the opposite two sides of flexible parent metal 61, but second connecting portion 512 is divided for second connecting portion first 5121 and second connecting portion second 5122,One end of second connecting portion first 5121 to be electrically connected with the first connecting portion 511 on display panel 10, the other end passes through via hole70 and compensating electrode 30 be electrically connected, one end of second connecting portion second 5122 and the electrical connection of driving chip 20, the other end is also by mistakeHole 70 and compensating electrode 30 are electrically connected, and are also required at this time respectively in the copper product where compensating electrode 30 and second connecting portion 512Insulating cover 62 is arranged in layer surface.Since compensating electrode 30 not will receive the influence of the trace arrangements such as second connecting portion 512, andSecond connecting portion 512 is divided for second connecting portion first 5121 and second connecting portion second 5122, so as to neatly design compensation electricityThe arrangement mode of pole 30 and second connecting portion 512.
It should be noted that present aspect exemplarily only lists above four kinds of compensating electrodes 30 in flexible circuit board 60Specific set-up mode；It, can be in conjunction with these four tools also, in a fairly large number of situation of the compensating electrode of required setting 30In body mode two kinds it is even two or more compensating electrode 30 is configured, but compensating electrode of the present invention 30 is in flexible circuit board 60On specific set-up mode be not limited thereto.
In some alternative embodiments, it please refers to shown in Figure 12, on the direction perpendicular to display panel 10, compensation electricityThe shape of pole 30 is rectangle, triangle, circle or trapezoidal.In the present embodiment, due to the feelings determined in display module film layer structureUnder condition, the size of actually required compensation load capacitance value is related with the size of compensating electrode 30, but in the size of compensating electrode 30Also in the case where determining, the shape of compensating electrode 30 can be rectangle, triangle, circle on the direction perpendicular to display panel 10Shape is trapezoidal, and certainly, in the case where not considering technology difficulty, the shape of compensating electrode 30 can also be other, the present embodimentTo this and it is not specifically limited.
In some alternative embodiments, it please refers to shown in Figure 13 and Figure 14, display module further includes metal backing 80, goldBelong to backboard 80 and display panel 10 is oppositely arranged；On the direction perpendicular to metal backing 80, compensating electrode 30 and metal backing80 overlap mutually.
In the prior art, display equipment usually provides light source by backlight module.In the present embodiment, backlight module 8 be can wrapInclude metal backing 80, optical diaphragm 81 and LED light bar (not shown), LED light bar and optical diaphragm 81 be located at metal backing 80 withIn the space that display panel 10 is formed, which can be a piece of, or the multi-disc with different optical functions,The present embodiment is to this and is not specifically limited.Metal backing 80 can be the metal frame with excellent impact resistance energy, so as toTo be protected to components such as LED light bar, optical diaphragm 81, display panels 10.
In order to improve the Electro Magnetic Compatibility and antistatic property of display panel 10, metal backing 80 can be connectGround, since on the direction perpendicular to metal backing 80, compensating electrode 30 and metal backing 80 overlap mutually, thus metal backing 80Two pole plates that can be used as load capacitance with compensating electrode 30 realize the compensation of load capacitance value.
In some alternative embodiments, incorporated by reference to shown in reference Fig. 3 and Figure 14, the area Sn of compensating electrode 30 meet withLower formula:
Wherein, d1For the distance between compensating electrode 30 and metal backing 80, Cn is the capacitor of conventional touch control electrode 40,Cpn is the capacitor for the special-shaped touch control electrode 50 being electrically connected with compensating electrode 30 by the second touch-control line of same 51, and k is electrostaticConstant, ε are dielectric constant.
In the present embodiment, overload electricity is being carried out positioned at the conventional touch control electrode 40 of viewing area AA and special-shaped touch control electrode 50Capacitance compensation before capacitance be it is known, so as to by above-mentioned formula realization 30 area Sn of compensating electrode calculating.ThanSuch as: the capacitor Cn=459.5pF of each routine touch control electrode 40 in the AA of viewing area, the capacitor of one of abnormity touch control electrode 50Cpn=355.8pF；On the direction perpendicular to metal backing 80, the distance between compensating electrode 30 and metal backing 80 d1=0.05mm takes π=3.14, k=8.988*109, when ε=1.00053, touched with the abnormity touch control electrode 50 by same secondThe area Sn for the compensating electrode 30 that control line 51 is electrically connected is calculated using above-mentioned formula:
Sn=4*3.14*8.988*109*0.05*(459.5-355.8)*10-12/ 1.00053=0.585mm2。
And when the area of flexible circuit board 60 is 1370.5mm2When, the area of compensating electrode 30 accounts for 60 face of flexible circuit boardLong-pending ratio is 0.585/1370.5=0.042685%.As it can be seen that compensating electrode 30 take up space in flexible circuit board 60 compared withIt is small, to will not influence the original trace arrangements of flexible circuit board 60.
In some alternative embodiments, it please refers to shown in Figure 15, display panel 10 further includes non-display area BB, compensation electricityPole 30 is located at non-display area BB.Wherein, the viewing area AA of display panel 10 is used for the display of picture, and display panel 10 is non-aobviousShow that area BB is then used to be arranged the first touch-control line 41 and the second touching being electrically connected with conventional touch control electrode 40 and special-shaped touch control electrode 50Line 51 is controlled, certain non-display area BB can be also used for arrangement, such as gate driving circuit of All other routes etc..
In the present embodiment, in the case where not influencing trace arrangements, compensating electrode 30 can be located at non-display area BB, thusThe space that can make full use of non-display area BB improves the effective rate of utilization of display panel 10.It should be noted that compensation electricityWhen pole 30 is located at non-display area BB, driving chip 20 can also be located at non-display area BB, or can also be located at display panel 10On external component, such as flexible circuit board etc., the present embodiment is to this and is not specifically limited.
Optionally, incorporated by reference to shown in reference Figure 15 and Figure 16, viewing area AA further include be set to it is more on underlay substrate 13A thin film transistor (TFT) T, thin film transistor (TFT) T include grid G, source S and drain D, and source S and drain D are set with material with film layerIt sets；The same material of at least one of multiple compensating electrodes 30 and grid G, source S, the second touch-control line 51, special-shaped touch control electrode 50It is arranged with film layer.
In the present embodiment, by taking compensating electrode 30 and special-shaped touch control electrode 50 are arranged with material with film layer as an example, compensating electrode30 and second touch-control line 51 be electrically connected, the second touch-control line 51 and special-shaped touch control electrode 50 are electrically connected, and are different by compensating electrode 30The compensation of the progress load capacitance value of shape touch control electrode 50；And the first touch-control line 41 and conventional touch control electrode 40 are electrically connected, without intoThe compensation of row load capacitance value, therefore the first touch-control line 41 and compensating electrode 30 are not connected to.At this point, compensating electrode 30 can be used forLoad capacitance can be formed to special-shaped touch-control between the data line 90 of driving signal by providing to each pixel (not shown) of viewing area AAThe load capacitance value of electrode 50 compensates.
Since compensating electrode 30 can be with the grid G in display panel 10, source S, the second touch-control line 51, special-shaped touch-control electricityAt least one of pole 50 is arranged with material with film layer, so that compensating electrode 30 can pattern shape together with the structure of same film layerAt effectively increasing the production efficiency of display panel 10.
It should be noted that specific film layer set-up mode of the compensating electrode 30 in non-display area BB is not limited thereto,Compensating electrode 30 can also form load capacitance with other film layers in display panel 10；Alternatively, can also be in display panel 10For upper increase film layer to form load capacitance with compensating electrode 30, the present embodiment is to this and is not specifically limited.
The present invention also provides a kind of display devices, including display module provided by the invention.
It please refers to shown in Figure 17, the display device 200 of the present embodiment includes the aobvious of any of the above-described embodiment offer of the present inventionShow mould group 100.Figure 17 only takes the mobile phone as an example, and is illustrated to display device 200, it is to be understood that the embodiment of the present invention mentionsThe display module 100 of confession can also be other display devices having a display function such as computer, TV, wrist-watch, car-mounted display, thisInvention is to this and is not specifically limited.Display device provided in an embodiment of the present invention has display provided in an embodiment of the present inventionThe beneficial effect of mould group can specifically refer to the various embodiments described above illustrating for display module, and the present embodiment is herein notIt repeats again.
Through the foregoing embodiment it is found that display module provided by the invention and display device, at least realizing following hasBeneficial effect:
Second touch-control line and compensating electrode electrical connection carry out load compensation, contracting to special-shaped touch control electrode by compensating electrodeLoad difference between small abnormity touch control electrode and conventional touch control electrode improves the homogeneity that display panel picture is shown, effectivelyEnsure the display quality of display equipment.Since special-shaped touch control electrode is electrically connected by the second touch-control line and driving chip, thusCompensating electrode and special-shaped touch control electrode can provide electric signal by driving chip, it is not necessary that the signal wire of compensating electrode is in addition arrangedRoad advantageously reduces the complexity of manufacture craft, improves the production efficiency of display equipment.In addition, the quantity and ruler of compensating electrodeVery little to be arranged according to actual needs, operation is more flexible and convenient, can adapt to the production needs that different model shows equipment, usesRange is wider.
Although some specific embodiments of the invention are described in detail by example, the skill of this fieldArt personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this fieldArt personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hairBright range is defined by the following claims.