CN109782468A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN109782468A CN109782468A CN201811629158.XA CN201811629158A CN109782468A CN 109782468 A CN109782468 A CN 109782468A CN 201811629158 A CN201811629158 A CN 201811629158A CN 109782468 A CN109782468 A CN 109782468A
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- China
- Prior art keywords
- display panel
- touch control
- light source
- array substrate
- membrane substrates
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Classifications
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
The present invention discloses a kind of display panel and display device, wherein, the display panel includes the color membrane substrates being cascading, array substrate and visible light source, the display panel further include: touch control detection light source, deviate from the side of the color membrane substrates, the first surface of the light direction of the touch control detection light source towards the display panel set on institute's array substrate；And touch control sensor, it is set between the color membrane substrates and the array substrate, the touch control sensor is to sense the touch control detection light being reflected back from the first surface of the display panel.Technical solution of the present invention can effectively improve the touch accuracy of display panel.
Description
Technical field
The present invention relates to display device technology field, in particular to a kind of display panel and display device.
Background technique
In example technique, touch-control display panel generally includes the sensor being set between color membrane substrates and array substrate,
The sensor corresponds to the pixel setting of preset quantity, to detect the visual intensity being reflected back from front side of touch-control display panel,
Then sensing signal is transferred to controller, controller executes corresponding control instruction.However, in the detection process of sensor
In, it may also be sensed device through the normal display light of other pixels and detected, interference, shadow then are formed to the detection of sensor
Ring the touch accuracy of touch-control display panel.
Summary of the invention
The main object of the present invention is to propose a kind of display panel, it is intended to solve touch-control display panel in example technique
The lower technical problem of touch accuracy.
To achieve the above object, display panel proposed by the present invention, including color membrane substrates, the array base being cascading
Plate and visible light source, which is characterized in that the display panel further include:
Touch control detection light source deviates from the side of the color membrane substrates set on institute's array substrate, the touch control detection light source
First surface of the light direction towards the display panel；And
Touch control sensor is set between the color membrane substrates and the array substrate, and the touch control sensor is to sense
The touch control detection light being reflected back from the first surface of the display panel.
Optionally, the touch control detection light source is infrared light supply, and the touch control sensor is infrared OPTICAL SENSORS.
Optionally, the infrared OPTICAL SENSORS is made of microcrystal silicon or polysilicon
Optionally, the touch control detection light source is the bar shaped fluorescent tube extended along the short side direction of the display panel, described
Visible light source is the bar shaped fluorescent tube extended along the longitudinal direction of the display panel.
Optionally, the touch control sensor is equipped with multiple, and the pixel that each touch control sensor corresponds to preset quantity is set
It sets, the preset quantity is 4~16.
Optionally, optical filtering color blocking structure is equipped in the color membrane substrates, the optical filtering color blocking structure is set to the touch-control sense
It surveys between device and the first surface, to filter off the visible light for being reflected towards the touch control sensor from the first surface.
Optionally, the optical filtering color blocking structure includes the feux rouges sub-pixel, green light sub-pixel and blue photons being stacked
At least the two in pixel.
Optionally, the array substrate is processed using four masking process.
The present invention also proposes a kind of display panel, including be cascading color membrane substrates, array substrate and visible
Light source, which is characterized in that the display panel further include:
Infrared light supply deviates from the side of the color membrane substrates, the light direction of the infrared light supply set on institute's array substrate
Towards the first surface of the display panel；And
Infrared OPTICAL SENSORS, be set between the color membrane substrates and the array substrate, the infrared OPTICAL SENSORS to
Sense the infrared light being reflected back from the first surface of the display panel；
Be equipped with optical filtering color blocking structure in the color membrane substrates, the optical filtering color blocking structure be set to the infrared OPTICAL SENSORS with
Between the first surface, to filter off the visible light for being reflected towards the infrared OPTICAL SENSORS from the first surface.
The present invention also proposes a kind of display device, including display panel, which includes the coloured silk being cascading
Ilm substrate, array substrate and visible light source, which is characterized in that the display panel further include:
Touch control detection light source deviates from the side of the color membrane substrates set on institute's array substrate, the touch control detection light source
First surface of the light direction towards the display panel；And
Touch control sensor is set between the color membrane substrates and the array substrate, and the touch control sensor is to sense
The touch control detection light being reflected back from the first surface of the display panel.
Technical solution of the present invention is by utilizing touch-control in introducing touch control detection light source and touch control sensor in display panel
Sensor senses the touch control detection light being reflected back from the first surface of the display panel, the touch-control function of Lai Shixian display panel
Can, compared to the scheme of sensor detection visible light in example technique, the technical program is by touch control detection light source and visible light
Source is independently opened, and bad interference of the visible light to touch control detection result is avoided, to improve the touch accuracy of display panel；And
And in the present embodiment, touch control detection light source combination visible light source is arranged, is conducive to the installation space using former visible light source,
Avoid increasing the thickness of display device.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is that the invention shows the diagrammatic cross-sections of one embodiment of panel；
Fig. 2 is the structural schematic diagram of backlight in Fig. 1；
Fig. 3 is the structural schematic diagram of touch control sensor and optical filtering color blocking structure in Fig. 1.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Color membrane substrates | 11 | Pixel |
| 2 | Array substrate | 3 | Backlight |
| 31 | Visible light source | 32 | Touch control detection light source |
| 4 | Touch control sensor | 5 | Optical filtering color blocking structure |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of display panel and the display device with the display panel.
With the higher and higher development trend of display device complete machine integrated level, the device collection that the complete machines such as touch-control must be used
At more more and more intense to the demand on display panel.As the manufacturer of production display panel, integrated function on a display panel
More, the added value of shipment is higher, can more bring the profit margin of great number.
In example technique, by the way that sensor is arranged between the array substrate and color membrane substrates of display panel, the sense
The pixel setting that device corresponds to preset quantity is surveyed, to detect the visual intensity being reflected back from front side of touch-control display panel, then
Sensing signal is transferred to controller, controller executes corresponding control instruction, in this way, the touch-control function to realize display panel
Energy.However, in the detection process of sensor, it may also be sensed device through the normal display light of other pixels and detected, after
And the detection of sensor is formed and is interfered, influence the touch accuracy of touch-control display panel.
Therefore, for this problem, referring to Figures 1 and 2, the display panel that technical solution of the present invention proposes includes from top to bottom
Color membrane substrates 1, array substrate 2 and the visible light source 31 being cascading, display panel further include:
Touch control detection light source 32 deviates from the side of the color membrane substrates 1, the touch control detection light set on institute's array substrate 2
First surface (display panel user oriented surface) of the light direction in source 32 towards display panel；And
Touch control sensor 4 is set between color membrane substrates 1 and array substrate 2, and touch control sensor 4 is to sense from display surface
The touch control detection light that the first surface of plate is reflected back.
In the present embodiment, which is liquid crystal display panel, it will be understood that liquid crystal display panel is that this field is extensive
The display panel used has many advantages, such as that cheap, imaging effect is good, certainly, in other embodiments, the display panel
It can be LED display panel etc., the design is without being limited thereto.
It is appreciated that visible light source 31 issues white light, touch control detection light source 32 can be the energy such as infrared light supply, ultraviolet source
The light source of black light is issued, as long as it can not interfere with the normal aobvious of visible light while detecting for touch control sensor 4
Show, and touch control sensor 4 be also can only to correspond to the type of light for detecting the touch control detection light source 32 and being issued, in this way, can
Even if the visible light that light-exposed source 31 is issued reaches at touch control sensor 4, the detection of touch control sensor 4 will not be formed dry
It disturbs, influences the touch accuracy of touch-control display panel.Specifically, when user does not carry out touch control operation to display panel, touch-control inspection
The light of the sending of light source 32 is surveyed as the light that visible light source 31 issues, the front surface for being directed through display panel projects forward, and
When user manipulates the front surface of finger touching display panel, the light that touch control detection light source 32 issues reaches display panel
Front surface after, under the keeping out of user's finger, towards back reflection, and detected by touch control sensor 4, touch control sensor 4 will
The light intensity signal detected feeds back to controller, and controller is translated into corresponding control instruction.It should be noted that visible
Although light also can keep out reflection by the finger of user, since it can't be detected by touch control sensor 4, so will not
Influence the touch accuracy of display panel.
In addition, array substrate 2 is processed using four masking process in the present embodiment；It is appreciated that in example technique,
Array substrate 2 be all made of five masking process processing, five masking process specifically include that deposition film, cleaning gluing, exposure technology,
Developing process, wet process or dry etching, stripping photoresist, and scheme of the scheme of the present embodiment based on five masking process, are exposing
In light technology and developing process, AS and Data layers of exposure is merged, reduces single exposure, and using double wet double in etching process
Deep dry etch process (increases a wet etching), in this way, effectively reducing the processing cost of array substrate 2.
In the present embodiment, touch control detection light source 32 with respect to visible light source 31 be set to array substrate 2 it is ipsilateral, with collectively as
The backlight 3 of display panel；It is appreciated that so set, advantageously reducing introducing touch-control based on usual light source setting position
Detect the influence arranged after light source 32 to other structures in display panel.
Technical solution of the present invention is by utilizing in introducing touch control detection light source 32 and touch control sensor 4 in display panel
Touch control sensor 4 senses the touch control detection light being reflected back from the first surface of display panel, the touch-control function of Lai Shixian display panel
Can, compared in example technique sensor detection visible light scheme, the technical program by touch control detection light source 32 with it is visible
Light source 31 is independently opened, and bad interference of the visible light to touch control detection result is avoided, to improve the touch-control essence of display panel
Degree；Moreover, touch control detection light source 32 is arranged in conjunction with visible light source 31 in the present embodiment, be conducive to utilize former visible light source 31
Installation space, avoid increase display device thickness.
In the present embodiment, touch control detection light source 32 is infrared light supply, and touch control sensor 4 is infrared OPTICAL SENSORS；It can manage
Solution, infrared light supply is widely used invisible light source 31 in display field, has many advantages, such as to be easy to get, is cheap,
And infrared OPTICAL SENSORS is then the selection of corresponding infrared light supply.Such as, but not limited to, infrared light supply can for near-infrared light source, in
Any one in infrared light supply and far infrared light source, when infrared light supply is near-infrared light source, the near-infrared that is issued
The wavelength of light is 850nm.
It is made it is easily understood that the sensor in example technique is all made of amorphous silicon material, also exactly therefore, only
It can be to detect visible light；And in the present embodiment, the infrared OPTICAL SENSORS is by microcrystal silicon or polysilicon system, in this way, to realize
It only to the detection of infrared light, avoids interference of the visible light to testing result.It should be noted that the design is without being limited thereto, in
In other embodiments, which can be also specifically made of other materials.
In order to better cover the touch area of display panel, in the present embodiment, touch control sensor 4 is equipped with multiple, distribution
At each position of display panel, it is understood, however, that each touch control sensor 4, which can correspond to, occupies partial pixel 11,
And 11 script of pixel is used as display transparent, if the pixel 11 that then touch control sensor 4 occupies is excessive, can drop to a certain extent
The aperture opening ratio of low display panel influences the imaging effect of display panel, and therefore, in the present embodiment, each touch control sensor 4 is corresponding
4~16 pixels 11 are arranged, on the one hand, the pixel 11 for avoiding it from occupying is excessive, influences display panel imaging effect, another party
Face will also make touch area cover entire display panel as far as possible, promote user experience；Specifically, each touch control detection device 4 is corresponding
8 pixels 11 are arranged, it should be noted that the design is without being limited thereto, and in other embodiments, each touch control detection device 4 may be used also
The pixel setting of corresponding other quantity.
Referring to Fig. 2, in order to preferably simplify the structure of display panel, reduce the manufacturing cost of display panel, the present embodiment
In, it is seen that light source 31 and touch control detection light source 32 are set on same light source mounting plate, and touch control detection light source 32 is along display panel
Short side direction extend bar shaped fluorescent tube, it is seen that light source 31 be along display panel longitudinal direction extend bar shaped fluorescent tube；It can be with
Understand, be arranged such, on the one hand, can preferably avoid interfering with each other between visible light and detection light, on the other hand, and consider
The bigger factor of light intensity needed for the visible light of display function is provided.Such as, but not limited to, light source mounting plate is arranged in rectangle,
Touch control detection light source 32 includes the two bar shaped fluorescent tubes extended respectively along light source mounting plate short side direction, it is seen that light source 31 includes two points
The bar shaped fluorescent tube not extended along the longitudinal direction of light source mounting plate；Certainly, due in this programme to the light of touch control detection light source 32
Strong demand is not too much high, therefore, in order to reduce the power consumption of touch control detection light source 32, then reduces the use cost of display device,
, can also be by the size design of touch control detection light source 32 smaller in other embodiments, such as it is designed as point light source.It needs to illustrate
That the design is without being limited thereto, be equipped at the back side in other embodiments, in array substrate 2 first light source mounting plate and
Around several second light source mounting plates of first light source mounting plate setting, the planar dimension of first light source mounting plate is greater than the second light
Source mounting plate, it is seen that light source 31 is set on first light source mounting plate, and touch control detection light source 32 is divided on second light source plate.No
Generality is lost, in this embodiment, first light source mounting plate and second light source mounting plate are in rectangle setting, certainly, in other
In embodiment, first light source mounting plate and second light source mounting plate can also be specifically arranged in other forms.
It should be noted that touch control sensor 4 is not limited to be set in array substrate 2 or on color membrane substrates 1, it is set to array
Technology difficulty is advantageously reduced on substrate 2, and is set on color membrane substrates 1 closer to first surface, and touch-control inspection is advantageously reduced
Survey the sacrifice of light；In the present embodiment, touch control sensor 4 is set in array substrate 2.
In addition, referring to Fig. 3, in order to preferably prevent interference of the visible light to touch control sensor 4, in the present embodiment, color film
Optical filtering color blocking structure 5 is equipped in substrate 1, optical filtering color blocking structure 5 is set between touch control sensor 4 and first surface, to filter off certainly
First surface is reflected towards the visible light of touch control sensor 4；It is appreciated that passing through optical filtering color from the visible light that first surface is reflected back
It after hindering structure 5, is effectively filtered, and can not be reached at touch control sensor 4, and touch control detection light is not then by optical filtering color blocking structure
It influences, it is normal to reach at touch control sensor 4, in this way, preferably improving the touch accuracy of display panel.Without loss of generality, the filter
Photochromic resistance structure 5 is made of the stacked combination of feux rouges sub-pixel, green light sub-pixel and blue light sub-pixel, such as, but not limited to,
Optical filtering color blocking structure 5 is the feux rouges sub-pixel being cascading, green light sub-pixel and blue light sub-pixel or optical filtering color blocking
Structure 5 is the feux rouges sub-pixel and green light sub-pixel being stacked；Certainly, in other embodiments, the optical filtering color blocking structure 5
Other forms can be specifically used, the design is without being limited thereto.
The present invention also proposes a kind of display device, which includes display panel, the specific structure of the display panel
At least have referring to above-described embodiment since this display device uses whole technical solutions of above-mentioned all embodiments
All beneficial effects brought by the technical solution of above-described embodiment, this is no longer going to repeat them.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of display panel, which is characterized in that including color membrane substrates, array substrate and the visible light being cascading
Source, which is characterized in that the display panel further include:
Touch control detection light source, the side of the color membrane substrates is deviated from set on institute's array substrate, and the touch control detection light source goes out light
First surface of the direction towards the display panel；And
Touch control sensor is set between the color membrane substrates and the array substrate, and the touch control sensor is to sense from institute
State the touch control detection light that the first surface of display panel is reflected back.
2. display panel as described in claim 1, which is characterized in that the touch control detection light source is infrared light supply, the touching
Control sensor is infrared OPTICAL SENSORS.
3. display panel as claimed in claim 2, which is characterized in that the infrared OPTICAL SENSORS is by microcrystal silicon or polysilicon
It is made.
4. display panel as described in claim 1, which is characterized in that the touch control detection light source is along the display panel
The bar shaped fluorescent tube that short side direction extends, the visible light source are the bar shaped fluorescent tube extended along the longitudinal direction of the display panel.
5. display panel as described in claim 1, which is characterized in that the touch control sensor is equipped with multiple, each touching
Control sensor corresponds to the pixel setting of preset quantity, and the preset quantity is 4~16.
6. display panel as described in claim 1, which is characterized in that be equipped with optical filtering color blocking structure, institute in the color membrane substrates
It states optical filtering color blocking structure to be set between the touch control sensor and the first surface, be reflected towards with filtering off from the first surface
The visible light of the touch control sensor.
7. the display panel as described in right wants 6, which is characterized in that the optical filtering color blocking structure includes feux rouges being stacked
At least the two in pixel, green light sub-pixel and blue light sub-pixel.
8. display panel as claimed in any one of claims 1 to 7, which is characterized in that the array substrate uses four exposure masks
Technique processing.
9. a kind of display panel, which is characterized in that including color membrane substrates, array substrate and the visible light being cascading
Source, which is characterized in that the display panel further include:
Infrared light supply deviates from the side of the color membrane substrates, the light direction direction of the infrared light supply set on institute's array substrate
The first surface of the display panel；And
Infrared OPTICAL SENSORS is set between the color membrane substrates and the array substrate, and the infrared OPTICAL SENSORS is to sense
The infrared light being reflected back from the first surface of the display panel；
Be equipped with optical filtering color blocking structure in the color membrane substrates, the optical filtering color blocking structure be set to the infrared OPTICAL SENSORS with it is described
Between first surface, to filter off the visible light for being reflected towards the infrared OPTICAL SENSORS from the first surface.
10. a kind of display device, which is characterized in that including the display panel as described in claim 1 to 8 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629158.XA CN109782468A (en) | 2018-12-28 | 2018-12-28 | Display panel and display device |
| PCT/CN2019/126006 WO2020135158A1 (en) | 2018-12-28 | 2019-12-17 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629158.XA CN109782468A (en) | 2018-12-28 | 2018-12-28 | Display panel and display device |
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| CN109782468A true CN109782468A (en) | 2019-05-21 |
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|---|---|---|---|
| CN201811629158.XA Pending CN109782468A (en) | 2018-12-28 | 2018-12-28 | Display panel and display device |
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| CN (1) | CN109782468A (en) |
| WO (1) | WO2020135158A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135158A1 (en) * | 2018-12-28 | 2020-07-02 | 惠科股份有限公司 | Display panel and display device |
| CN110941117A (en) * | 2019-11-28 | 2020-03-31 | 武汉华星光电技术有限公司 | Display panel and electronic device |
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| Publication number | Publication date |
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| WO2020135158A1 (en) | 2020-07-02 |
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