CN105425456B - Colored filter, touch device and display device - Google Patents
Colored filter, touch device and display device Download PDFInfo
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- CN105425456B CN105425456B CN201511028782.0A CN201511028782A CN105425456B CN 105425456 B CN105425456 B CN 105425456B CN 201511028782 A CN201511028782 A CN 201511028782A CN 105425456 B CN105425456 B CN 105425456B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to touch-control display field, a kind of colored filter, touch device and display device are disclosed.Wherein, which includes: lower basal plate；Semiconductor devices is formed in the lower basal plate；Color layer is formed on the semiconductor devices, and the color layer includes red filter part, green filter part and blue filter part；And flatness layer, it is formed on the color layer.The touch device and display device for the colored filter for having used above-mentioned color layer of the invention to be formed on the semiconductor devices of lower basal plate, can be improved the susceptibility of touch-control, promote the experience of user.
Description
Technical field
The present invention relates to touch-control display fields, and in particular, to a kind of colored filter, touch device and display device.
Background technique
Colored filter (Color filter, also known as color film) purposes includes by selecting color passband and LCD (Liquid
Crystal Display, liquid crystal display) peak power output to monochrome display (such as VF (Vacuum
Fluorescent, vacuum fluorescent display), EL (Electroluminescent, electricity glimmering active display), LED (shine two
Pole pipe display) etc.) carry out contrast enhancing；Broad band pass filter is used to improve optical scanner and red, yellow, amber light-emitting diodes
The contrast and performance of tube display；Middle three groove profile optical filter of density and polaroid polarizer are by reducing internal reflection and exporting in display
A biggish variable is generated between power and background to enhance the contrast of LCD.
Fig. 1 shows a kind of liquid crystal display of prior art.As shown in Figure 1, liquid crystal display (LCD) is non-active hair
The component of light, generally comprises colored filter 1, liquid crystal display panel 2, TFT element 3 and backlight module 4, and the display of color is necessary
It will be through the backlight module 4 (such as penetrating type LCD) of display interior or ambient incident light (such as reflection-type or semi penetration type of outside
LCD) light source is provided, then arrange in pairs or groups and drive the control of IC (Drive IC, driving chip) and liquid crystal display panel 2 to form grayscale to show
(Gray Scale), it is then colored through the RGB of colored filter 1 (wherein, R indicates that red, G indicates that green, B indicate blue)
Layer provides form and aspect (Chromacity), ultimately forms colored display picture (color is not shown in the figure).
Touch panel is to plate one layer of tin-antiomony oxide film (ATO Layer) and protective film (Hard in transparent glass surface
Coat Layer), it needs to make anti-disturbance of electronic signal processing (Shielded Layer) between liquid crystal screen (LCD Monitor).
Touch panel is the direct embodiment of touch technology, for incuding activation signal, and analyzes identification.
Touch panel technology brief introduction is touch panel structure provided to include: inductor (Sensor), controller (Controller) and
Software (Software) three parts.Inductor, that is, touch panel part is contacted based on inputted information with receiving；Controller
Function is to analyze, calculate contact point position, and converting analogue signals are digital signal, and so that information equipment is received should
Input signal；Communication of the software section between connection information processing equipment and controller is reached an agreement on, and information processing equipment can be connect
It receives and recognizes the signal that controller is inputted to carry out follow-up action.
Touch panel can usually divide into resistance-type, condenser type, optical profile type, four kinds of acoustic wave according to induction technology difference.Its
In, capacitance type touch-control panel is using capacitance variations caused by electrostatical binding between transparent electrode and human body, from produced
Induction electro-detection its coordinate.Principle of induction acts on four corners of screen induction zone with voltage and forms a stationary electric field,
When finger touches screen, electric field can be made to cause electric current, measured by controller, and according to the difference of four angle ratios of current distance,
Contact position can be calculated.However capacitance type touch-control panel must overcome finger or other touch mediums because being produced with electrostatic
Raw influence of noise, so more difficult on electric current and structure design.It can be calculated when by pressing according to current ratio
Position.
Fig. 2 shows a kind of capacitance type touch-control panels of prior art.As shown in Fig. 2, capacitance type touch-control panel is substantially
It is the characteristic for improved resistance formula not scratch resistance and comes, in structure outermost layer is a very thin silica cure process layer 5,
Hardness reaches 7H, and the second layer is ITO layer 6, establishes a uniform electric field in glass surface, in the way of induction human body weak current
Achieve the purpose that touch-control, third layer is glass substrate 7, the undermost effect of ITO layer 8 is shielding function, to maintain touch surface
Plate can work under good noiseless environment.
Signal-to-noise ratio (SNR) refers to that Touch Screen eliminates practical touch-control generation and the condenser type letter from infrequent noise
Number ability.Capacitance touch control screen controller can measure the little change in row, column coupled capacitor, the measurement side of controller
Method has very big influence for the external noise sensibility of controller.Large touch screen especially has challenge in this section
Property, one of them most significant noise generating source is exactly liquid crystal display (LCD) itself.As Touch Screen is increasing, and
And support more synchronous touch-controls and more complicated interaction content, all reach best performance in all projects and has become
It is more important.
The signal-to-noise ratio of capacitance type sensor: high s/n ratio (SNR) is the key point for developing strong capacitance type sensing mobile phone.
It points out that signal should at least be higher by 5 times than noise in the operating guidance of Cypress, this is indicated with engineering term, signal-to-noise ratio is extremely
It should be 5:1 less.
Fig. 3 shows the relation schematic diagram of sample number and quantization output.
As shown in figure 3, can be measured to figure SNR.When finger is not disposed in sensor, 8 subwave peak-to-peak noises can be generated.
When finger is placed in sensor, 118 signals can be generated.Signal-to-noise ratio is 118:8, and 15:1 is equal to after reduction of a fraction.
SNR should measure the optimum and worst situation of finger touching situation.The finger touching of optimum is that finger is big
The touch sensor center of area.Worst situation is then that the range of finger touching is smaller, and deviates the center of sensor.
In this example, when finger is placed on sensor, the counting of sensor can rise.Noise testing is between wave crest
110 countings, signal is counted as 1850, therefore signal-to-noise ratio is 17:1.
Fig. 4 is a kind of cross-sectional view of traditional touch panel.
As shown in figure 4, the touch device include the first glass substrate 10, the first metal layer 11, dielectric layer (silica) 12,
13 insulating layer 14 of second metal layer, the first both alignment layers 15, main prismatic layer 16, secondary prismatic layer 17, the second both alignment layers 18, liquid crystal layer
19, transparent conductive layer (conductive indium-tin oxide layer) 20, color layer 21, black matrix" 22 and the second substrate 23.Wherein, colored
Layer 21 is formed between the second substrate 23 and transparent conductive layer 20 and directly contacts with the second substrate 23.However, such contain
Having the touch panel structure provided structure sheaf due to color film of color film to contain some organic principles, (dielectric constant of these organic materials is logical
Often between 3-5) and touch sensing is made to will affect the susceptibility of touch-control in capacitive sensing.
Summary of the invention
The object of the present invention is to provide a kind of colored filter, touch device and display devices, to solve above-mentioned existing skill
The problems in art.
To achieve the goals above, the present invention provides a kind of colored filter, wherein the colored filter includes: lower part
Substrate；Semiconductor devices is formed in the lower basal plate；Color layer is formed on the semiconductor devices, the color layer
Including red filter part, green filter part and blue filter part；And flatness layer, it is formed on the color layer.
To achieve the goals above, the present invention also provides a kind of touch devices, and wherein the device includes touch control layer and upper
The colored filter stated.
To achieve the goals above, the present invention also provides a kind of display devices, and wherein the device includes above-mentioned touch-control
Device.
Through the above technical solutions, color layer is formed on the semiconductor devices of lower basal plate and is formed on color layer
For flatness layer to form colored filter of the present invention, the colored filter formed in this way is being applied to touch device and display
It is not in the case where color layer is located under cover board and contacts with cover board when in device.It has used as a result, of the present invention
The susceptibility of the touch-control of the touch device and display device of colored filter can be improved, and can also correspondingly promote user
Experience.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 shows a kind of liquid crystal display of prior art；
Fig. 2 shows a kind of capacitance type touch-control panels of prior art；
Fig. 3 shows the relation schematic diagram of sample number and quantization output；
Fig. 4 is a kind of cross-sectional view of traditional touch panel；
Fig. 5 is the cross-sectional view of the colored filter of one embodiment of the present invention；
Fig. 6 is the top view of the touch device of one embodiment of the present invention；
Fig. 7 is another top view of the touch device of one embodiment of the present invention；
Fig. 8 is the cross-sectional view for the touch device that a-a ' looks in direction along Fig. 7；
Fig. 9 is the cross-sectional view for the touch device that b-b ' looks in direction along Fig. 7；And
Figure 10 A-10C shows the respective signal-to-noise ratio of touch device of three types.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 5 is the cross-sectional view of the colored filter of one embodiment of the present invention.
As shown in figure 5, the colored filter 20 that one embodiment of the present invention provides includes: lower basal plate 21；Semiconductor
Device 22 is formed in the lower basal plate 21；Color layer 23 is formed on the semiconductor devices 22, the color layer 23
Including red filter part, green filter part and blue filter part；And flatness layer (Over coat layer, OC layer)
24, it is formed on the color layer 23.
Through the above technical solutions, color layer is formed on the semiconductor devices of lower basal plate and is formed on color layer
For flatness layer to form colored filter of the present invention, the colored filter formed in this way is being applied to touch device and display
It is not in the case where color layer is located under cover board and contacts with cover board when in device.It has used as a result, of the present invention
The susceptibility of the touch-control of the touch device and display device of colored filter can be improved, and can also correspondingly promote user
Experience.
According to an embodiment of the present invention, the semiconductor devices 22 includes thin film transistor (TFT) (TFT).
According to an embodiment of the present invention, the lower basal plate 21 can be glass substrate.
According to an embodiment of the present invention, the upper surface of the flatness layer 24 is a horizontal plane.
The present invention also provides a kind of touch devices, and wherein the device includes described in touch control layer 30 and above embodiment
Colored filter 20.
Fig. 6 is the top view of the touch device of one embodiment of the present invention；Fig. 7 is the touching of one embodiment of the present invention
Control another top view of device.
In Fig. 6, RX1, RX2 ... RX9, RX10 indicate induction electrode, and TX1, TX2 ... TX19, TX20 indicate to drive
Moving electrode；T-FPC indicates that touch-control circuit plate, D-IC indicate display integrated circuit (IC), and GOA (Gate on Array) is indicated
Grid on array.In Fig. 7, Tx indicates driving electrodes；Rx indicates that induction electrode, ITO indicate tin indium oxide.
Fig. 8 is the cross-sectional view for the touch device that a-a ' looks in direction along Fig. 7.
As shown in FIG. 7 and 8, the touch control layer 30 in the touch device of one embodiment of the present invention includes: driving electrodes
(Tx) 31, it is formed on the flatness layer 24, and the size of the driving electrodes 31 is less than the size of the flatness layer；Black square
Battle array (BM) 32, is formed on the flatness layer 24 and covers the driving electrodes 31；Induction electrode 33 is formed in the flatness layer
On 24 and there is the opening for exposing the black matrix" 32；Electrically conducting transparent bridge 34, formed in said opening and with the induction
There is interval S between electrode 33；Protective layer 35 is formed on the induction electrode 33 and the electrically conducting transparent bridge 34 and covers institute
State induction electrode 33 and the electrically conducting transparent bridge 34；Prismatic layer (PS) 36 is formed on the protective layer 35；Liquid crystal layer (does not show
Out), it is formed on the protective layer 35；And cover board (not shown), it is formed on the liquid crystal layer.
Wherein, black matrix" 32 is formed such that driving electrodes 31 are not contacted with induction electrode 33, as shown in the M in Fig. 8
(that is, black matrix" 32 to be isolated between driving electrodes 31 and induction electrode 33).Protective layer 35 connects with induction electrode 33
Touching, as shown in N in Fig. 8.Also, it is formed by protective layer 35 and is filled with electrically conducting transparent bridge 34 and the induced electricity in the opening
Existing interval S between pole 33.
According to an embodiment of the present invention, the cover board can be glass cover-plate.
According to an embodiment of the present invention, the electrically conducting transparent bridge 34 is indium tin oxide transparent conducting bridge (ITO
Bridge)。
According to an embodiment of the present invention, the material of the prismatic layer 36 can be resin.The material of black matrix" 32
It may be resin.Above-mentioned material is only exemplary, and is not intended to limit the present invention.
The present invention also provides a kind of display devices, wherein the device includes the dress of touch-control described in above embodiment
It sets.
Fig. 9 is the cross-sectional view for the touch device that b-b ' looks in direction along Fig. 7.
In fig. 9 it is shown that layer or component that part is not shown in fig. 8, are described below in conjunction with Fig. 9.Such as
Shown in Fig. 9, wherein the first metal layer 40, N+ amorphous silicon membrane 41, dielectric layer 42 and second metal layer 43 constitute semiconductor devices.
Semiconductor devices is formed in lower basal plate 21.Insulating layer 44, color layer are formed between semiconductor devices and color layer 23
23 include red filter part, green filter part and blue filter part.In Fig. 9, color layer 23 has deep trouth, and is wrapping
The surface for including the color layer 23 on deep trouth surface forms the first pixel electrode (ITO conductive layer) 39.Flatness layer 24, which is formed in, to be had
On the color layer 23 of first pixel electrode 39, and it is filled with the deep trouth of color layer 23.Driving electrodes 31, black matrix" 32, induction
Electrode 33, electrically conducting transparent bridge 34, protective layer 35, prismatic layer 36, liquid crystal layer 37, cover board 38, the second pixel electrode 45, the first orientation
Layer 46 and the second both alignment layers 47 constitute touch control layer.First both alignment layers 46 are formed in the surface of the protective layer 35 and prismatic layer 36,
Second pixel electrode 45 and the second both alignment layers 47 are formed between liquid crystal layer 37 and cover board 38, the second pixel electrode 45 and cover board 38
Contact, and the second both alignment layers 47 are contacted with liquid crystal layer 37.
Wherein, dielectric layer 42 can be silicon nitride (SiNx) dielectric layer.
In Fig. 9, the first prismatic layer 361 and the second prismatic layer 362 that prismatic layer 36 has height different.
Furthermore, it is possible to form protective layer 35 using lithography and using intermediate tone mask (half-tone mask)
And prismatic layer 36.Above-mentioned intermediate tone mask can control the transmitance of light, and light is controlled by this exposure mask light transmission rate
Afterwards, can minus photoresist to lower layer carry out photo-hardening, so light penetrates more more then minus photoresist photo-hardening degree
Height, film thickness is higher, it is possible thereby to form the prismatic layer 36 with different height.Also, can also using in the prior art other
Prepared by method and process, the present invention is defined not to this.
Figure 10 A-10C shows the respective signal-to-noise ratio of touch device (SNR) of three types.
Wherein, Figure 10 A shows a kind of signal-to-noise ratio of traditional touch device, and Figure 10 B shows a kind of based on array
The signal-to-noise ratio of the touch device of color film (Color Filter on Array, COA), and Figure 10 C shows a kind of present invention one kind
The touch device of embodiment is (namely based on BM& coloured silk Mo &PS's on array (BM&Color Filter&PS on Array, BOA)
Touch device) signal-to-noise ratio.
As shown in figures 10a-10c, the signal-to-noise ratio of traditional touch device is 3.8:1；The noise of touch device based on COA
Than for 10:1；And the signal-to-noise ratio of the touch device based on BOA is 50:1.It can thus be seen that from traditional touch device to base
In the touch device of BOA, signal-to-noise ratio increases to 50:1 from 3.8:1.It is, the signal-to-noise ratio of touch device of the present invention obtains
To being obviously improved, solves the problems, such as that touch-control is insensitive, correspondingly user experience is also promoted.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (9)
1. a kind of touch device, wherein the device includes touch control layer and colored filter,
The touch control layer includes:
Driving electrodes are formed on flatness layer, and the size of the driving electrodes is less than the size of the flatness layer；
Black matrix" forms on the flat laye and covers the driving electrodes；
Induction electrode forms on the flat laye and has the opening of the exposure black matrix"；
There is interval in said opening and between the induction electrode in electrically conducting transparent bridge, formation；
Protective layer is formed on the induction electrode and the electrically conducting transparent bridge and covers the induction electrode and described transparent leads
Electric bridge；
Prismatic layer is formed on the protective layer；
Liquid crystal layer is formed on the protective layer；And
Cover board is formed on the liquid crystal layer.
2. the apparatus according to claim 1, wherein the cover board is glass cover-plate.
3. device according to claim 1 or 2, wherein the electrically conducting transparent bridge is indium tin oxide transparent conducting bridge.
4. device according to claim 1 or 2, wherein the material of the prismatic layer is resin.
5. device according to claim 1 or 2, wherein the colored filter includes:
Lower basal plate；
Semiconductor devices is formed in the lower basal plate；
Color layer is formed on the semiconductor devices, and the color layer includes red filter part, green filter part and indigo plant
Color optical filtering part；And flatness layer, it is formed on the color layer.
6. device according to claim 5, wherein the semiconductor devices includes thin film transistor (TFT).
7. device according to claim 5, wherein the lower basal plate is glass substrate.
8. device according to claim 5, wherein the upper surface of the flatness layer is a horizontal plane.
9. a kind of display device, wherein the device includes touch device of any of claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511028782.0A CN105425456B (en) | 2015-12-31 | 2015-12-31 | Colored filter, touch device and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511028782.0A CN105425456B (en) | 2015-12-31 | 2015-12-31 | Colored filter, touch device and display device |
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| CN105425456A CN105425456A (en) | 2016-03-23 |
| CN105425456B true CN105425456B (en) | 2019-03-05 |
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| CN106055184B (en) * | 2016-05-25 | 2019-12-31 | 东旭（昆山）显示材料有限公司 | Touch device and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317097A (en) * | 2014-10-31 | 2015-01-28 | 京东方科技集团股份有限公司 | COA (color filter on array) substrate, production method thereof and display device |
| CN104538428A (en) * | 2014-12-29 | 2015-04-22 | 深圳市华星光电技术有限公司 | Structure and manufacturing method of COA type WOLED |
| CN104576700A (en) * | 2014-12-29 | 2015-04-29 | 深圳市华星光电技术有限公司 | COA-type WOLED (color filter on array type white organic light emitting diode) structure and manufacturing method |
| CN104656325A (en) * | 2015-03-18 | 2015-05-27 | 深圳市华星光电技术有限公司 | COA (Color filter On Array) type liquid crystal panel and manufacturing method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317097A (en) * | 2014-10-31 | 2015-01-28 | 京东方科技集团股份有限公司 | COA (color filter on array) substrate, production method thereof and display device |
| CN104538428A (en) * | 2014-12-29 | 2015-04-22 | 深圳市华星光电技术有限公司 | Structure and manufacturing method of COA type WOLED |
| CN104576700A (en) * | 2014-12-29 | 2015-04-29 | 深圳市华星光电技术有限公司 | COA-type WOLED (color filter on array type white organic light emitting diode) structure and manufacturing method |
| CN104656325A (en) * | 2015-03-18 | 2015-05-27 | 深圳市华星光电技术有限公司 | COA (Color filter On Array) type liquid crystal panel and manufacturing method thereof |
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