CN109189255A - Touch-control display panel - Google Patents
Touch-control display panel Download PDFInfo
- Publication number
- CN109189255A CN109189255A CN201810764875.7A CN201810764875A CN109189255A CN 109189255 A CN109189255 A CN 109189255A CN 201810764875 A CN201810764875 A CN 201810764875A CN 109189255 A CN109189255 A CN 109189255A
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- China
- Prior art keywords
- touch
- control
- substrate
- display panel
- layer
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Classifications
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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
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
The present invention provides a kind of touch-control display panel.The touch-control display panel includes: the first substrate being oppositely arranged and the second substrate and the liquid crystal layer between the first substrate and the second substrate, the first substrate is array substrate, touch control electrode and touch-control sensing line are formed in the second substrate, in the touch-control stage, the touch-control sensing line carries out touch-control sensing to touch control electrode load touching signals, in the display stage, the touch-control sensing line carries out picture to touch control electrode load public voltage signal and shows, by the touch control electrode for forming self-tolerant structure in the second substrate, form the In-Cell touch-control structure for being suitable for VA type liquid crystal display panel, it is able to ascend the touch-control sensitivity and job stability of touch-control display panel.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of touch-control display panels.
Background technique
With the development of display technology, liquid crystal display (Liquid Crystal Display, LCD), organic light emission two
The flat display apparatus such as pole pipe display (Organic Light Emitting Diode, OLED) because have high image quality, power saving,
The advantages that fuselage is thin and has a wide range of application, and it is widely used in mobile phone, TV, personal digital assistant, digital camera, notes
The various consumer electrical products such as this computer, desktop computer, become the mainstream in display device.
Touch-control display panel (Touch panel) provides a kind of new man-machine interaction interface, more direct in use,
It is more humane.The display panel of touch panel and flat display apparatus is combined, touch-control display panel is formed, can make
Flat display apparatus has touch function, and input can be executed by finger, stylus etc., and operation is more intuitive, easy.
Touch-control display panel can be divided into resistance-type, condenser type, optical profile type, four kinds of acoustic wave according to induction technology difference, at present
The touch technology of mainstream is condenser type.Touch-control display panel can be divided according to structure difference are as follows: embedded type touch control display panel and
External hanging type touch-control display panel.Wherein, external hanging type touch-control display panel is separately to produce touch panel with liquid crystal display panel,
Then it is bonded together into the display panel with touch function, that there are costs of manufacture is higher for external hanging type touch-control display panel,
The disadvantages of light transmission rate is lower, mould group is thicker.Embedded type touch control display panel is that touch panel function is embedded into liquid crystal display panel
It is interior, so that the function that liquid crystal display panel is provided simultaneously with display and perceives touch-control input has compared to external hanging type touch-control display panel
The advantages that cost is relatively low, thinner thickness is favored by major panel producer.Further, embedded type touch control display panel according to
The different of position are divided into again in touch-control circuit insertion liquid crystal display panel: at liquid crystal cell mo(u)ld top half (On Cell), another kind is touch-control circuit
Touch-control circuit is at liquid crystal cell inner mold (In Cell).Compared with On Cell touch-control display panel, In Cell touch-control display panel energy
It enough realizes the more lightening of panel, is used for vast mobile phone production firm, be evolved into the main development side of the following touch technology
To.
According to the aligned difference of liquid crystal, the liquid crystal display panel on mainstream market can be divided into following a few types at present
Type: vertical orientation (Vertical Alignment, VA) type, twisted-nematic (Twisted Nematic, TN) or super twisted nematic
(Super Twisted Nematic, STN) type, plane conversion (In-Plane Switching, IPS) type and fringe field switching
(Fringe Field Switching, FFS) type.Existing In-Cell type touch-control display panel generally uses mutual capacitance type touch-control
Technology, when touch-control sensing, not only need to be arranged lateral driving line, but also need that longitudinal sense wire is arranged, and route cross-line is more, parasitic
Capacitor is big, and the aperture opening ratio of pixel is low, while lateral driving line also will increase the frame of display, influence the realization of narrow frame,
And the display panel that it is used is generally FFS type liquid crystal display panel, touch control electrode (Touch Sensor) is located at array substrate
On pixel electrode lower section, touch-control sensitivity is low, and is not applied for actually using wider VA type liquid crystal display panel.
Summary of the invention
The purpose of the present invention is to provide a kind of touch-control display panels, are suitable for VA type liquid crystal display panel, and touch-control spirit
Sensitivity is high, good operating stability.
To achieve the above object, the present invention provides a kind of touch-control display panels, comprising: the first substrate that is oppositely arranged with
The second substrate and the liquid crystal layer between the first substrate and the second substrate；
The first substrate include: the first underlay substrate, set on first underlay substrate close to the second substrate
The TFT layer of side, the passivation layer on the TFT layer and the pixel electrode on the passivation layer；
The second substrate include: the second underlay substrate, set on second underlay substrate close to the first substrate
The black matrix" of side, is set to the touch-control sensing at the spaced a plurality of touch-control sensing line on the black matrix"
It line, black matrix" and the insulating layer on the second underlay substrate and the array arrangement on the insulating layer and is spaced apart from each other
Multiple touch control electrodes, the insulating layer correspond to the multiple touch control electrode and are formed with multiple via holes, each touch control electrode passes through
One via hole is corresponding to be electrically connected a touch-control sensing line；
In the touch-control stage, the touch-control sensing line carries out touch-control sensing to touch control electrode load touching signals, aobvious
Show the stage, the touch-control sensing line carries out picture to touch control electrode load public voltage signal and shows.
The second substrate further includes the chromatic filter layer between second underlay substrate and the insulating layer, institute
Multiple color blocking blocks that chromatic filter layer includes array arrangement are stated, adjacent color blocking block is separated by the black matrix".
The first substrate further includes the chromatic filter layer between the TFT layer and the passivation layer, the colour
Filter layer includes multiple color blocking blocks of array arrangement, the corresponding region blocked between each adjacent color blocking block of the black matrix"
The second substrate further includes being located at the insulating layer far from the touch control electrode side and the touch-control sensing line
The separate touch control electrode side and the planarization layer for covering black matrix" and the second underlay substrate.
The TFT layer includes: grid on first underlay substrate, is set to the grid and the first underlay substrate
On gate insulating layer, the active layer on gate insulating layer, on the gate insulating layer respectively with it is described active
The source electrode of two end in contact of layer and drain electrode.
Column direction of a plurality of touch-control sensing line along touch control electrode arrangement extends.
The shape of the touch control electrode is rectangle or diamond shape.
The material of the touch control electrode and pixel electrode is tin indium oxide
One of material molybdenum, titanium, aluminium and copper of the touch-control sensing line or a variety of combinations.
The material of the insulating layer is the combination of one of silicon oxide or silicon nitride or both.
Beneficial effects of the present invention: the present invention provides a kind of touch-control display panel, comprising: the first substrate that is oppositely arranged with
The second substrate and the liquid crystal layer between the first substrate and the second substrate, the first substrate are array substrate, institute
It states and is formed with touch control electrode and touch-control sensing line in the second substrate, in the touch-control stage, the touch-control sensing line is electric to the touch-control
Pole loads touching signals and carries out touch-control sensing, and in the display stage, the touch-control sensing line loads common electrical to the touch control electrode
Pressure signal carries out picture and shows, by forming the touch control electrode of self-tolerant structure in the second substrate, is formed and is suitable for VA type liquid
The In-Cell touch-control structure of LCD panel is able to ascend the touch-control sensitivity and job stability of touch-control display panel.
Detailed description of the invention
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is the schematic diagram of the first embodiment of touch-control display panel of the invention；
Fig. 2 is the schematic diagram of the second embodiment of touch-control display panel of the invention；
Fig. 3 is the schematic diagram of the 3rd embodiment of touch-control display panel of the invention；
Fig. 4 is the distribution map of touch control electrode and touch-control sensing line in touch-control display panel of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
Shown in please referring to Fig.1 to Fig.3, the present invention provides a kind of touch-control display panel, comprising: the first substrate being oppositely arranged
10 and the second substrate 20 and the liquid crystal layer 30 between the first substrate 10 and the second substrate 20.
Specifically, the first substrate 10 is array substrate, comprising: the first underlay substrate 11 is set to first substrate
Substrate 11 is close to the TFT layer 12 of the side of the second substrate 20, the passivation layer 13 on the TFT layer 12 and is set to described
Pixel electrode 14 on passivation layer 13；
As shown in connection with fig. 4, the second substrate 20 is the counter substrate opposite with array substrate, comprising: the second substrate base
Plate 21, set on second underlay substrate 21 close to the side of the first substrate 10 black matrix" 22, be set to the black
Spaced a plurality of touch-control sensing line 23 on matrix 22 is set to the touch-control sensing line 23, black matrix" 22 and the second lining
Insulating layer 24 on substrate 21 and the array arrangement on the insulating layer 24 and the multiple touch control electrodes being spaced apart from each other
25, the corresponding the multiple touch control electrode 25 of the insulating layer 24 is formed with multiple via holes 26, each touch control electrode 25 passes through one
Via hole 26 is corresponding to be electrically connected a touch-control sensing line 23.
Specifically, the TFT layer 12 includes: grid 121 on first underlay substrate 11, is set to the grid
121 and first gate insulating layer 122 on underlay substrate 11, the active layer 123 on gate insulating layer 122, be set to it is described
On gate insulating layer 123 respectively with the source electrode 124 of two end in contact of the active layer 123 and drain electrode 125.The a plurality of touch-control
Column direction of the sense wire 23 along the touch control electrode 25 arrangement extends, and each column touch control electrode 25 is correspondingly provided with a plurality of be parallel to
The touch-control sensing line 23 of the column touch control electrode 25.
Further, in order to promote the electrology characteristic of TFT, the TFT layer 12 can also include be located at the source electrode 124 with
Ohmic contact layer 127 between active layer 123 and between drain electrode 125 and active layer 123.
Preferably, the shape of the touch control electrode 25 is rectangle or diamond shape.
Preferably, the material of the touch control electrode 25 and pixel electrode 14 is tin indium oxide, the touch-control sensing line 23
One of material molybdenum, titanium, aluminium and copper or a variety of combinations, the material of the insulating layer 24 be in silicon oxide or silicon nitride
The combination of one or both.
It should be noted that the touch-control display panel be VA type liquid crystal display panel, use timesharing drive mode into
Row work, the course of work includes two stages, respectively touch-control stage and display stage, in a frame image time, the touching
Control display panel is introduced into the touch-control stage, and in the touch-control stage, the touch-control sensing line 23 is loaded to the touch control electrode 25
Touching signals carry out touch-control sensing, and subsequently into the display stage, in the display stage, the touch-control sensing line 23 is to the touching
Control electrode 25 loads public voltage signal progress picture and shows.
It is noted that the present invention carries out touch-control using self-tolerant touch-control structure, the touch control electrode 25 only needs to set
Setting longitudinal touch-control sensing line 23 can be completed touch-control sensing, without lateral driving line, can reduce the side of liquid crystal display panel
Frame realizes that narrow frame is shown, while touch control electrode 25 and touch-control sensing line 23 are set to the second substrate 20, the second substrate 20
It is not array substrate, does not have TFT layer Wiring structure, the cross-line in touch-control sensing line 23 and face between other cablings can be reduced,
Parasitic capacitance is reduced, job stability is promoted.
When it is implemented, the second substrate 20 is color membrane substrates as shown in Figure 1, in the first embodiment of the present invention,
The second substrate 20 further includes the chromatic filter layer 40 between second underlay substrate 21 and the insulating layer 24, institute
Multiple color blocking blocks that chromatic filter layer 40 includes array arrangement are stated, adjacent color blocking block is separated by the black matrix" 22, excellent
Selection of land, the multiple color blocking block include red color resistance block, green color blocking block and blue color blocking block.
When it is implemented, as shown in Fig. 2, can also be integrated using array coloured silk film in the second embodiment of the present invention
Chromatic filter layer 40 ' is arranged on first substrate 10 namely described first (Color Filter on Array, COA) technology
Substrate 10 further includes the chromatic filter layer 40 ' between the TFT layer 12 and the passivation layer 13, the same colored filter
Multiple color blocking blocks of photosphere 40 including array arrangement, black matrix" 22 in the second substrate 20 is corresponding block it is adjacent each
Region between color blocking block.Preferably, the multiple color blocking block includes red color resistance block, green color blocking block and blue color blocking block.
When it is implemented, as shown in figure 3, in the third embodiment of the present invention, it can also be on the basis of second embodiment
On, planarization layer 50 is added in the second substrate 20, with being uneven in the flat the second substrate 20, guarantees touch control electrode
25 job stability, the planarization layer 50 are located at the insulating layer 24 far from 25 side of touch control electrode and the touch-control
Sense wire 23 is far from 25 side of touch control electrode and covers black matrix" 22 and the second underlay substrate 21.
In conclusion the present invention provides a kind of touch-control display panel, comprising: the first substrate and the second substrate being oppositely arranged
And the liquid crystal layer between the first substrate and the second substrate, the first substrate are array substrate, second base
Touch control electrode and touch-control sensing line are formed on plate, in the touch-control stage, the touch-control sensing line is loaded to the touch control electrode and touched
Control signal carry out touch-control sensing, display the stage, the touch-control sensing line to the touch control electrode load public voltage signal into
Row picture is shown, by forming the touch control electrode of self-tolerant structure in the second substrate, is formed and is suitable for VA type LCD display
The In-Cell touch-control structure of plate is able to ascend the touch-control sensitivity and job stability of touch-control display panel.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention
Protection scope.
Claims (10)
1. a kind of touch-control display panel characterized by comprising the first substrate (10) that is oppositely arranged and the second substrate (20) with
And it is set to the liquid crystal layer (30) between the first substrate (10) and the second substrate (20)；
The first substrate (10) includes: the first underlay substrate (11), is set to first underlay substrate (11) close to described the
The TFT layer (12) of the side of two substrates (20), be set to the TFT layer (12) on passivation layer (13) and be set to the passivation layer
(13) pixel electrode (14) on；
The second substrate (20) includes: the second underlay substrate (21), is set to second underlay substrate (21) close to described the
The black matrix" (22) of the side of one substrate (10), the spaced a plurality of touch-control sensing being set on the black matrix" (22)
Line (23), be set to the touch-control sensing line (23), black matrix" (22) and the second underlay substrate (21) on insulating layer (24) with
And array arrangement and the multiple touch control electrodes (25) being spaced apart from each other on the insulating layer (24) are set to, the insulating layer (24) is corresponding
The multiple touch control electrode (25) is formed with multiple via holes (26), each touch control electrode (25) passes through a via hole (26) corresponding electricity
Property connection one touch-control sensing line (23)；
In the touch-control stage, the touch-control sensing line (23) carries out touch-control sensing to the touch control electrode (25) load touching signals,
In the display stage, the touch-control sensing line (23) carries out picture to the touch control electrode (25) load public voltage signal and shows.
2. touch-control display panel as described in claim 1, which is characterized in that the second substrate (20) further includes positioned at described
Chromatic filter layer (40) chromatic filter layer (40) between second underlay substrate (21) and the insulating layer (24) includes battle array
Multiple color blocking blocks of arrangement are arranged, adjacent color blocking block is separated by the black matrix" (22).
3. touch-control display panel as described in claim 1, which is characterized in that the first substrate (10) further includes positioned at described
Chromatic filter layer (40 ') between TFT layer (12) and the passivation layer (13), the chromatic filter layer (40 ') include array row
Multiple color blocking blocks of cloth, the corresponding region blocked between each adjacent color blocking block of the black matrix" (22).
4. touch-control display panel as claimed in claim 3, which is characterized in that the second substrate (20) further includes positioned at described
Insulating layer (24) is far from the touch control electrode (25) side and the touch-control sensing line (23) far from the touch control electrode (25) one
Side and the planarization layer (50) for covering black matrix" (22) and the second underlay substrate (21).
5. touch-control display panel as described in claim 1, which is characterized in that the TFT layer (12) includes: set on described first
Grid (121) on underlay substrate (11), the gate insulating layer on the grid (121) and the first underlay substrate (11)
(122), be set to gate insulating layer (122) on active layer (123), be set to the gate insulating layer (123) on respectively with it is described
The source electrode (124) of two end in contact of active layer (123) and drain electrode (125).
6. touch-control display panel as described in claim 1, which is characterized in that a plurality of touch-control sensing line (23) is along described
The column direction of touch control electrode (25) arrangement extends.
7. touch-control display panel as described in claim 1, which is characterized in that the shape of the touch control electrode (25) be rectangle or
Diamond shape.
8. touch-control display panel as described in claim 1, which is characterized in that the touch control electrode (25) and pixel electrode (14)
Material be tin indium oxide.
9. touch-control display panel as described in claim 1, which is characterized in that the material molybdenum of the touch-control sensing line (23), titanium,
One of aluminium and copper or a variety of combinations.
10. touch-control display panel as described in claim 1, which is characterized in that the material of the insulating layer (24) is silica
Or the combination of one of silicon nitride or both.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764875.7A CN109189255A (en) | 2018-07-12 | 2018-07-12 | Touch-control display panel |
| PCT/CN2018/113290 WO2020010756A1 (en) | 2018-07-12 | 2018-11-01 | Touch control display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764875.7A CN109189255A (en) | 2018-07-12 | 2018-07-12 | Touch-control display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109189255A true CN109189255A (en) | 2019-01-11 |
Family
ID=64936076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810764875.7A Pending CN109189255A (en) | 2018-07-12 | 2018-07-12 | Touch-control display panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109189255A (en) |
| WO (1) | WO2020010756A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099254A (en) * | 2020-09-14 | 2020-12-18 | Oppo广东移动通信有限公司 | Total reflection display screen and electronic device |
| CN112930563A (en) * | 2019-08-08 | 2021-06-08 | 京东方科技集团股份有限公司 | Gate drive unit, circuit, display substrate, display panel and display device |
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Also Published As
| Publication number | Publication date |
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| WO2020010756A1 (en) | 2020-01-16 |
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Application publication date: 20190111 |