CN103412676B - A kind of touch screen and display device - Google Patents
A kind of touch screen and display device Download PDFInfo
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- CN103412676B CN103412676B CN201310322908.XA CN201310322908A CN103412676B CN 103412676 B CN103412676 B CN 103412676B CN 201310322908 A CN201310322908 A CN 201310322908A CN 103412676 B CN103412676 B CN 103412676B
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- touch
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of touch screen and display device, using at least one gate line in array base palte as touch-control scan line, array base palte has the touch-control read line staggered with touch-control scan line, includes photosensitive unit and touch switch unit in touch-control scan line and touch-control read line limited area；Wherein, photosensitive unit is all connected with touch-control scan line with touch switch unit, and photosensitive unit is connected with touch-control read line by touch switch unit；When touch-control scan line loads scanning signal, photosensitive unit is made to be in opening by illumination, this photosensitive unit is to touch switch unit output control signal, control signal controls touch switch unit to export touch sense signals to touch-control read line, realize optical touch control function, with respect to capacitance type in-cell touch panel, the problem of signal interference and signal delay will not be produced in large scale.
Description
Technical field
The present invention relates to touch screen technology field, more particularly, to a kind of touch screen and display device.
Background technology
Developing rapidly with Display Technique, touch screen（Touch Screen Panel）Gradually throughout the life of people
In work.At present, classify according to principle, touch screen generally comprises：Resistive touch screen, capacitive touch screen, optical touch screen
Deng.According to composition textural classification, touch screen generally comprises：Plug-in touch screen (the Out-cell on a display panel of touch screen
Touch panel), the touch screen (On-cell touch panel) in face, touch screen are embedded in face to touch screen on a display panel
Touch screen (In-cell touch panel) in plate.Wherein, the structure that touch screen embeds in the panel both can thinning touch
The overall thickness of screen, can substantially reduce the cost of manufacture of touch screen, producer favors by Ge great panel again.
At present, mainly by way of resistance-type, condenser type or optical profile type, realize touch screen and be embedded in setting of panel itself
Meter.Wherein, resistance-type belongs to low side sensing technology, and the product General Life produced is shorter；Condenser type development comparatively fast also enjoys
Welcome, but capacitive touch screen is primarily adapted for use in the display device of small-medium size, such as 10 cun or less than 10 cun of product, right
In the display device of large-size, capacitive touch screen can produce the problem of signal interference and signal delay.
Content of the invention
Embodiments provide a kind of touch screen and display device, the signal in order to solve large scale touch screen disturbs
Problem with signal delay.
A kind of touch screen provided in an embodiment of the present invention, including the array base palte with a plurality of gate line；
At least one gate line in described array base palte is as touch-control scan line；
Described array base palte has the touch-control read line staggered with described touch-control scan line；
Include photosensitive unit and touch switch in described touch-control scan line and described touch-control read line limited area
Unit, wherein,
Described photosensitive unit is all connected with described touch-control scan line with described touch switch unit, and described photosensitive unit passes through
Described touch switch unit is connected with described touch-control read line；When described touch-control scan line loads scanning signal, by illumination
Described photosensitive unit is made to be in opening, described photosensitive unit is to described touch switch unit output control signal, described control
Signal processed controls described touch switch unit to export touch sense signals to described touch-control read line.
A kind of display device provided in an embodiment of the present invention, including touch screen provided in an embodiment of the present invention.
The beneficial effect of the embodiment of the present invention includes：
A kind of touch screen provided in an embodiment of the present invention and display device, by least one signal in array base palte
As touch-control scan line, array base palte has the touch-control read line staggered with touch-control scan line to line, in touch-control scan line and
Photosensitive unit and touch switch unit is included in touch-control read line limited area；Wherein, photosensitive unit and touch switch list
Unit is all connected with touch-control scan line, and photosensitive unit is connected with touch-control read line by touch switch unit；Add in touch-control scan line
When carrying scanning signal, photosensitive unit is made to be in opening by illumination, this photosensitive unit is to touch switch unit output control
Signal, control signal controls touch switch unit to export touch sense signals it is achieved that optical touch control work(to touch-control read line
Can, with respect to capacitance type in-cell touch panel, the problem of signal interference and signal delay will not be produced in large scale.
Brief description
Fig. 1 is one of structural representation of array base palte in touch screen provided in an embodiment of the present invention；
The profile of the touch screen that Fig. 2 provides for inventive embodiments；
Fig. 3 is the working timing figure of touch screen provided in an embodiment of the present invention；
Fig. 4 is two of the structural representation of array base palte in touch screen provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of touch screen provided in an embodiment of the present invention and display device is carried out
Explain.
A kind of touch screen provided in an embodiment of the present invention, as shown in figure 1, include thering is a plurality of gate line Gate n (n
=1,2,3......) array base palte；
At least one gate line Gate n (n=1,2,3......) in array base palte is as touch-control scan line Scan
m(m=1,2,3......)；
Array base palte have the touch-control read line Read out n staggered with touch-control scan line Scan m (n=1,2,
3......)；
Include photosensitive unit 102 in touch-control scan line Scan m and touch-control read line Read out n limited area
With touch switch unit 103；Wherein,
Photosensitive unit 102 is all connected with touch-control scan line Scan m with touch switch unit 103, and photosensitive unit 102 passes through
Touch switch unit 103 is connected with touch-control read line Read out n；When touch-control scan line Scan m loads scanning signal, lead to
Crossing illumination makes photosensitive unit 102 be in opening, and this photosensitive unit 102, should to touch switch unit 103 output control signal
Control signal controls touch switch unit 103 to export touch sense signals to touch-control read line Read out n.
It should be noted that above-mentioned touch screen provided in an embodiment of the present invention, having illumination to refer to touch screen has touch, unglazed
According to referring to touch screen no touch.
Further, in above-mentioned touch screen provided in an embodiment of the present invention, as shown in figure 1, also setting on array base palte
There are multiple pixel cells 101 arranged in arrays, in the specific implementation, touch-control read line Read out n may be located at adjacent column
Pixel cell 101 between.
Further, in above-mentioned touch screen provided in an embodiment of the present invention, as shown in Fig. 2 also including：With array base palte
The opposite substrate being oppositely arranged, opposite substrate has black matrix 104 towards the side of array base palte；
The figure of black matrix 104 is at least provided with open area in region corresponding with photosensitive unit 102, such exterior light
Line just can be irradiated to photosensitive unit 102 from this open area, realizes touch controllable function.
In the specific implementation, above-mentioned touch screen provided in an embodiment of the present invention, can apply to colored filter and is arranged on
The opposite substrate relative with array base palte is the structure of color membrane substrates；It is of course also possible to be applied to colored filter to be arranged on battle array
Structure in row substrate, here does not limit.
Specifically, in above-mentioned touch screen provided in an embodiment of the present invention, in the specific implementation, as shown in figure 1, photosensitive list
Unit 102 can comprise a light sensing transistor TFT1；The source electrode of this light sensing transistor TFT1 is connected with touch-control scan line Scan m, sense
The grid of optotransistors TFT1 is all connected with touch switch unit 103 with drain electrode, specifically, can be by light sensing transistor TFT1's
Grid is connected with touch switch unit 103 it is also possible to be connected to the grid of light sensing transistor TFT1 and drain electrode respectively with drain electrode
It is connected with touch switch unit 103 after together, here does not limit again.
Specifically, the operation principle of this light sensing transistor TFT1 is：There being light irradiation light sensing transistor TFT1, and photosensitive crystalline substance
When there is potential difference between the source and drain of body pipe TFT1, in the active layer of this light sensing transistor TFT1, carrier number can rapidly increase
Plus, produce larger photoelectric current between the source electrode of light sensing transistor TFT1 and drain electrode, that is, now photosensitive unit is in opening；
When having light irradiation light sensing transistor TFT1, but there is not potential difference between the source electrode of light sensing transistor TFT1 and drain electrode, photosensitive
Obvious electric current is not had to produce between transistor TFT1 source electrode and drain electrode；When there is no light irradiation light sensing transistor TFT1, this sense
In the active layer of optotransistors TFT1, carrier number is less, and light sensing transistor TFT1 is closed, light sensing transistor
With the presence or absence of potential difference all without generation electric current between the source electrode of TFT1 and drain electrode.And, when touch-control scan line Scan m loads
During scanning signal, between the source electrode of light sensing transistor TFT1 and drain electrode, just can there is potential difference.
To sum up, only when touch-control scan line Scan m loads scanning signal, and when having light irradiation this light sensing transistor TFT1,
Light sensing transistor TFT1 just has control signal output.Certainly photosensitive unit can also be other structures, and here does not limit.
Specifically, in touch screen provided in an embodiment of the present invention, light sensing transistor can be infrared light sensing transistor, when
Can also be so the other light sensing transistor realizing technical solution of the present invention, here does not limit.
It is preferred that in touch screen provided in an embodiment of the present invention, as shown in figure 1, it is used for connecting photosensitive unit 102 and touches
The touch switch unit 103 of control read line Read out n specifically can comprise a thin film transistor (TFT) TFT2, wherein, this thin film
The grid of transistor TFT2 is connected with photosensitive unit 102, the drain electrode of thin film transistor (TFT) TFT2 and touch-control read line Read out n
It is connected, the source electrode of thin film transistor (TFT) TFT2 is connected with touch-control scan line Scan m.Certainly touch switch unit can also be other
Structure, here does not limit.
It should be noted that the source electrode of transistor in the embodiment of the present invention and drain electrode are not specifically distinguished, source-drain electrode it
Between can exchange.
And, in touch screen provided in an embodiment of the present invention, as shown in figure 1, when touch switch unit 103 is that thin film is brilliant
During body pipe TFT2, when photosensitive unit 102 is light sensing transistor TFT1；The source electrode of light sensing transistor TFT1 and touch-control scan line Scan
M is connected, and the grid of light sensing transistor TFT1 is all connected with the grid of thin film transistor (TFT) TFT2 with drain electrode.When photosensitive unit 102 is defeated
The control signal going out the grid to the thin film transistor (TFT) TFT2 as touch switch unit 103 is more than or equal to thin film transistor (TFT)
During the threshold voltage of the grid of TFT2, thin film transistor (TFT) TFT2 is in opening, if the source electrode of now this thin film transistor (TFT) TFT2
There is potential difference and drain electrode between, then produce electric current between the source electrode of this thin film transistor (TFT) TFT2 and drain electrode, read to touch-control
Line Read out n exports touch sense signals.
To sum up, photosensitive unit is only when touch-control scan line loads scanning signal（When i.e. touch-control scan line is in high potential）
Be possible to output control signal, touch switch unit is only opened more than or equal to touch-control in the control signal of photosensitive unit output
Just opening can be in, remaining time is all in closed mode during the threshold voltage closing unit unlatching.Only sweep in touch-control
When retouching line loading scanning signal, touch switch unit is only possible to be in opening.
Therefore, the source electrode of the thin film transistor (TFT) as touch switch unit is directly connected with touch-control scan line, and independent
Setting high potential signal line inputs high potential signal always to the source electrode of thin film transistor (TFT) and compares, and so that thin film transistor (TFT) is only had at it
When being likely to be at opening, its source electrode just can be transfused to high potential signal, so can save the power consumption of touch screen.And, it is many
Well known, still with the presence of leakage current when thin film transistor (TFT) is closed, the source electrode of its size and thin film transistor (TFT) and drain electrode
Between potential difference be directly proportional, be separately provided high potential signal line and be connected with the thin film transistor (TFT) as touch switch unit, meeting
Make the source electrode of this thin film transistor (TFT) be constantly in high potential, lead to thin film transistor (TFT) to produce larger leakage current and flow to touch-control reading
Line, thus reduce the sensitivity of touch screen.And in touch screen provided in an embodiment of the present invention, using as touch switch unit
The source electrode of thin film transistor (TFT) is directly connected with touch-control scan line, make thin film transistor (TFT) only when it is likely to be in opening its
Source electrode just can be in high potential.Therefore, using direct for the source electrode of the thin film transistor (TFT) as touch switch unit and touch-control scan line
It is connected, and is separately provided high potential signal line and makes compared with the source electrode of thin film transistor (TFT) is constantly in high potential, touch can be improved
The sensitivity of screen, and then improve the signal to noise ratio of touch screen.
Meanwhile, the source electrode of the thin film transistor (TFT) as touch switch unit is directly connected and can also save with touch-control scan line
Remove to be separately provided the high potential signal line being connected with its source electrode, thus ensureing the aperture opening ratio of touch screen.
In the specific implementation, all parts as the thin film transistor (TFT) of touch switch unit can be existing with array base palte
In some thin film transistor (TFT)s controlling pixel cell to switch, all parts are prepared with layer, are so increased without new preparation technology,
Only need the composition changing each film layer corresponding to can achieve, save production cost, improve production efficiency.Certainly concrete
During enforcement, touch switch can also be other structures, is not described in detail here.
With reference to sequential chart as shown in Figure 3, light sensing transistor TFT1 is specially with photosensitive unit as shown in Figure 1,
Concrete work as a example touch switch unit is specially the structure of thin film transistor (TFT) TFT2, to touch screen provided in an embodiment of the present invention
Briefly introduced as principle.
In figure 3,201,202,203 are respectively gate line Gate n-1, the input signal of Gate n, Gate n+1
Oscillogram, as touch-control scan line, 204 is touch-control read line Read out n during light irradiation light sensing transistor TFT1 to Gate n
Signal output waveform figure, 205 is the output signal ripple of touch-control read line Read out n during unglazed irradiation light sensing transistor TFT1
Shape figure.
In the first period T1, gate line Gate n-1201 is in high potential Vgh, gate line Gate n202 is
Touch-control scan line is in electronegative potential Vgl, gate line Gate n+1203 is also at electronegative potential Vgl, light sensing transistor TFT1's
Source electrode and drain electrode between and thin film transistor (TFT) TFT2 source electrode and drain electrode between there is not potential difference, have or not light irradiation photosensitive
Transistor TFT1, light sensing transistor TFT1 do not have control signal to export thin film transistor (TFT) TFT2, therefore touch-control read line
Read out n does not have touch sense signals to export.
In the second period T2, gate line Gate n-1201 and Gate n+1203 is in electronegative potential Vgl, signal
Line Gate n202 is that touch-control scan line is in high potential Vgh, between the source electrode of light sensing transistor TFT1 and drain electrode and thin film is brilliant
There is potential difference between the source electrode of body pipe TFT2 and drain electrode.If now light irradiation light sensing transistor TFT1, the source of light sensing transistor
Photoelectric current is produced, that is, photosensitive unit is in opening, and touch-control scan line is inputted its source by light sensing transistor TFT1 between drain electrode
The signal of pole exports the grid of thin film transistor (TFT) TFT2 as control signal；It is more than or equal to thin film transistor (TFT) in control signal
During the grid voltage of TFT2, thin film transistor (TFT) TFT2 is in opening, and touch-control scan line is inputted it by thin film transistor (TFT) TFT2
The signal of source electrode exports touch-control read line Read out n as touch sense signals；As unglazed irradiation light sensing transistor TFT1
When, light sensing transistor TFT1 is closed, and light sensing transistor TFT1 does not have control signal to export thin film transistor (TFT) TFT2,
Therefore touch-control read line Read out n does not have touch sense signals to export.
In the 3rd period T3, gate line Gate n-1201 is in electronegative potential Vgl, gate line Gate n202 is
Touch-control scan line is also at electronegative potential Vgl, gate line Gate n+1203 is in high potential Vgh, light sensing transistor TFT1's
Source electrode and drain electrode between and thin film transistor (TFT) TFT2 source electrode and drain electrode between there is not potential difference, have or not light irradiation photosensitive
Transistor TFT1, light sensing transistor TFT1 do not have control signal to export, and therefore touch-control read line Read out n does not have touch-control
Sensing signal exports.
Usually, the touch accuracy of touch screen is generally in grade, and the display precision of array base palte is generally in micron order,
As can be seen that the touch-control scan line needed for touch screen and touch-control read line show required drives line than array base palte（Data is believed
Number line and gate line）Will much less, therefore, in touch screen provided in an embodiment of the present invention, in setting touch read line
During with touch-control scan line, typically the spacing between each touch-control scan line can be set to identical, between each touch-control read line
Spacing is set to identical.
Most preferably, the spacing between each touch-control scan line and the spacing between each touch-control read line can be set to phase
With to unify the touch accuracy of touch screen.
Further, in the touch-control read line realizing in array base palte being located between the pixel cell of adjacent column, permissible
Each touch-control read line is arranged and mutually insulated with layer with the data signal line in array base palte, that is, is preparing each data signal line
While prepare touch-control read line with its mutually insulated, so, do not need when preparing array base palte to increase extra system
Standby operation, it is only necessary to can form data signal line and the figure of touch-control read line by patterning processes, can save system
Standby cost, improving product added value.It is of course possible to prepare touch-control read line data holding wire respectively, here does not limit.
It is preferred that in order to the aperture opening ratio ensureing large-sized touch screen to greatest extent, the embodiment of the present invention provides
The array base palte of touch screen in dot structure can adopt double-gate structure in the specific implementation, as shown in figure 4, wherein Data
N (n=1,2,3......) represents the data signal line of array base palte, and Gate n (n=1,2,3......) represents array base palte
Gate line, photosensitive unit and touch switch unit not shown in Fig. 4, in double-gate structure, array base palte is provided with
Multiple pixel cells arranged in arrays, have two gate line between the pixel cell of the adjacent lines on array base palte,
Such as Gate1 and Gate2, Gate3 and Gate4, Gate5 and Gate6, and two often adjacent row pixel cells are string, share
One data signal line Data1, Data2, Data3 being located between this two row pixel cell.On array base palte by double grid
Structure, by the gate line of the quantity that doubles, decreases the quantity of data signal line and source drive IC, thus reducing
Display holistic cost.
Further, double-gate structure as shown in Figure 4 passes through to change gate line and the TFT of adjacent rows pixel cell
The position of switch, can save the position of data signal line between adjacent pixel unit row.So, as shown in Figure 4 so that it may with
Gap location setting each touch-control read line Read out n, i.e. each touch-control read line Read out between adjacent pixel unit row
N is particularly located at the gap location between adjacent pixel cell row, so can reduce the occupancy of pixel cell further it is ensured that
Touch screen has larger aperture opening ratio.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, carries including the embodiment of the present invention
For above-mentioned touch screen, this display device can be：Mobile phone, panel computer, television set, display, notebook computer, digital phase
Any product with display function such as frame, navigator or part.The enforcement of this display device may refer to above-mentioned touch screen
Embodiment, repeats no more in place of repetition.
A kind of touch screen provided in an embodiment of the present invention and display device, by least one signal in array base palte
As touch-control scan line, array base palte has the touch-control read line staggered with touch-control scan line to line, in touch-control scan line and
Photosensitive unit and touch switch unit is included in touch-control read line limited area；Wherein, photosensitive unit and touch switch list
Unit is all connected with touch-control scan line, and photosensitive unit is connected with touch-control read line by touch switch unit；Add in touch-control scan line
When carrying scanning signal, photosensitive unit is made to be in opening by illumination, this photosensitive unit is to touch switch unit output control
Signal, control signal controls touch switch unit to export touch sense signals it is achieved that optical touch control work(to touch-control read line
Can, with respect to capacitance type in-cell touch panel, the problem of signal interference and signal delay will not be produced in large scale.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (7)
1. a kind of touch screen, including the array base palte with a plurality of gate line it is characterised in that；
At least one gate line in described array base palte is as touch-control scan line；
Described array base palte has the touch-control read line staggered with described touch-control scan line；
Include photosensitive unit and touch switch unit in described touch-control scan line and described touch-control read line limited area；
Wherein,
Described photosensitive unit is all connected with described touch-control scan line with described touch switch unit, and described photosensitive unit passes through described
Touch switch unit is connected with described touch-control read line；When described touch-control scan line loads scanning signal, institute is made by illumination
State photosensitive unit and be in opening, described photosensitive unit is to described touch switch unit output control signal, described control letter
Number control described touch switch unit to described touch-control read line export touch sense signals；
Described touch switch unit comprises a thin film transistor (TFT), and described photosensitive unit comprises a light sensing transistor；Wherein, described sense
The source electrode of optotransistors is connected with described touch-control scan line, the grid of described light sensing transistor and drain electrode all with described film crystal
The grid of pipe is connected and is not connected with described touch-control scan line, the source electrode of described thin film transistor (TFT) and described touch-control scan line phase
Even, the drain electrode of described thin film transistor (TFT) is connected with described touch-control read line.
2. touch screen as claimed in claim 1 is it is characterised in that described light sensing transistor is infrared light sensing transistor.
3. touch screen as claimed in claim 1 is it is characterised in that number in each described touch-control read line and described array base palte
Arrange and mutually insulated with layer according to holding wire.
4. touch screen as claimed in claim 1 is it is characterised in that be provided with arranged in arrays many on described array base palte
Individual pixel cell, has two gate line between the pixel cell of described array base palte adjacent lines, and with adjacent two
Row pixel cell is one group of pixel cell row, and every group of pixel cell row share a data being located between this two row pixel cell
Holding wire.
5. touch screen as claimed in claim 4 is it is characterised in that each described touch-control read line is particularly located at the pixel of adjacent column
Gap location between cell columns.
6. the touch screen as described in any one of claim 1-5 is it is characterised in that also include：Relative with described array base palte set
The opposite substrate put, described opposite substrate has black matrix towards the side of described array base palte；
The figure of described black matrix is at least provided with open area in region corresponding with described photosensitive unit.
7. a kind of display device is it is characterised in that include the touch screen as described in any one of claim 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322908.XA CN103412676B (en) | 2013-07-29 | 2013-07-29 | A kind of touch screen and display device |
| PCT/CN2013/085695 WO2015014029A1 (en) | 2013-07-29 | 2013-10-22 | Touch screen and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322908.XA CN103412676B (en) | 2013-07-29 | 2013-07-29 | A kind of touch screen and display device |
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| Publication Number | Publication Date |
|---|---|
| CN103412676A CN103412676A (en) | 2013-11-27 |
| CN103412676B true CN103412676B (en) | 2017-03-01 |
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| CN201310322908.XA Expired - Fee Related CN103412676B (en) | 2013-07-29 | 2013-07-29 | A kind of touch screen and display device |
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| Country | Link |
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| CN (1) | CN103412676B (en) |
| WO (1) | WO2015014029A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679355B (en) * | 2015-03-19 | 2017-10-10 | 合肥鑫晟光电科技有限公司 | A kind of optical touch screen and display device |
| CN105679251B (en) | 2016-04-11 | 2018-11-30 | 京东方科技集团股份有限公司 | Touch-control display module and its driving method, touch-control display panel and device |
| CN106354345B (en) * | 2016-11-11 | 2020-01-10 | 京东方科技集团股份有限公司 | Touch unit, touch module, embedded touch screen and display device |
| CN109147693B (en) * | 2018-09-03 | 2020-08-04 | 武汉华星光电半导体显示技术有限公司 | LED display device with infrared identification |
| CN110264947B (en) * | 2019-06-18 | 2021-01-22 | 京东方科技集团股份有限公司 | Pixel circuit, driving method and display device |
| CN111521546B (en) * | 2020-06-15 | 2023-07-25 | 京东方科技集团股份有限公司 | Cell sensor array and cell detection chip |
| CN112835225A (en) * | 2021-03-17 | 2021-05-25 | 维沃移动通信有限公司 | Touch display device and electronic equipment |
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| US6069674A (en) * | 1995-05-19 | 2000-05-30 | Sharp Kabushiki Kaisha | Liquid crystal display apparatus |
| CN101266346A (en) * | 2007-03-13 | 2008-09-17 | 瀚宇彩晶股份有限公司 | Light sensitive element and LCD device applying same |
| CN101556388A (en) * | 2008-04-11 | 2009-10-14 | 瀚宇彩晶股份有限公司 | Touch-control type panel in which signals can be inputted |
| CN102073402A (en) * | 2009-11-20 | 2011-05-25 | 群康科技(深圳)有限公司 | Touch display device |
| CN102543017A (en) * | 2010-12-10 | 2012-07-04 | 乐金显示有限公司 | Liquid crystal display device |
| CN202939579U (en) * | 2012-11-30 | 2013-05-15 | 北京京东方光电科技有限公司 | Half-transparent and half-reflecting type embedded touch screen and display device |
| CN203366282U (en) * | 2013-07-29 | 2013-12-25 | 合肥京东方光电科技有限公司 | Touch screen and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103412676A (en) | 2013-11-27 |
| WO2015014029A1 (en) | 2015-02-05 |
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