CN100443969C - Touch control faceplate, and fabricating method - Google Patents
Touch control faceplate, and fabricating method Download PDFInfo
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- CN100443969C CN100443969C CNB2006100938239A CN200610093823A CN100443969C CN 100443969 C CN100443969 C CN 100443969C CN B2006100938239 A CNB2006100938239 A CN B2006100938239A CN 200610093823 A CN200610093823 A CN 200610093823A CN 100443969 C CN100443969 C CN 100443969C
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Abstract
A touch-control face plate is prepared for forming each pixel by two adjacent scan lines and two adjacent data lines being vertically crossed with said scan lines; connecting grid of pixel film transistor to a scan line and drain electrode to a data line as well as drain electrode to a pixel electrode; containing the first, the second, the third and the fourth light filtering layers separately in the first, the second, the third and the fourth pixels for displaying out the first, the second, the third and the fourth wavelength light; and containing a photosensitive element in the fourth pixel.
Description
[technical field]
The present invention is about a kind of embedded type touch control panel, especially about a kind of embedded type touch control panel with preferable luminous sensitivity.
[background technology]
Known contact panel is to add a sensing film on a display panels, not only increases cost, also makes the penetration of this display panels reduce about 20%.That compares is following, and an embedded type touch control panel is a sensitometric characteristic of utilizing the thin film transistor (TFT) with amorphous silicon passage, with the display element integration and making of photo-sensitive cell and display panels, therefore has lower cost and preferred optical characteristic.Fig. 1 is the circuit diagram of embedded type touch control panel, embedded type touch control panel 10 includes a top glass substrate (not shown) and a lower glass substrate (not shown), the lower glass substrate surface comprises the sweep trace 16 of many horizontal arrangement and the data line 18 of many arranged perpendicular, and two adjacent sweep traces 16 and two adjacent data lines 18 are around constituting a pixel.Each pixel all comprises a pixel thin film transistor 20, has a grid and is electrically connected with one scan line 16, and one source pole is electrically connected with a data line 18, and a drain electrode is electrically connected with a pixel electrode (not shown).Fig. 2 is each dot structure synoptic diagram, as shown in Figure 2, top glass substrate 12 comprises a red filter layer 24, one a green filter layer 26 and a blue color filter layer 28 respectively corresponding to the pixel electrode 22 of each pixel, to be used for showing red light, green light and blue light.In addition, have a black matrix" 30 between filter layer 24,26,28 and be used for covering pixel thin film transistor (not shown), to avoid light leak.
Because human eye is lower for the susceptibility of blue light, therefore comprises the photo-sensitive cell that a photosensitive film transistor and reads thin film transistor (TFT) and be formed in the blue pixel.As shown in Figure 1, photosensitive film transistor 32 has a grid and one source pole and is electrically connected with the common line 34 of a horizontal arrangement simultaneously, and one drains and reads thin film transistor (TFT) 36 and be electrically connected.Read thin film transistor (TFT) 36 and have a grid and be electrically connected with one scan line 16, one source pole is electrically connected with the read line 38 of an arranged perpendicular, and a drain electrode is electrically connected with photosensitive film transistor 32.Wherein, the grid of pixel thin film transistor 20 and the grid that reads thin film transistor (TFT) 36 are electrically connected with two adjacent sweep traces 16 around this blue pixel respectively.When ambient light irradiation photosensitive film transistor 32, can produce a photocurrent, otherwise, when photosensitive film transistor 32 is covered by a touch-control object, promptly can't produce a photocurrent.Reading thin film transistor (TFT) 36 periodically reads this photocurrent and utilizes read line 38 to be sent to a processor (not shown), this processor can be judged the position of this touch-control object contact embedded type touch control panel 10 by the variation of this photocurrent, to reach touch controllable function.
According to known embedded type touch control panel 10, because this photo-sensitive cell is arranged in the blue pixel, after ambient light must penetrate blue color filter layer 28 earlier, could shine photosensitive film transistor 32, cause component environment light to be absorbed by blue color filter layer 28, therefore the sensitivity of this photo-sensitive cell be affected.
[summary of the invention]
The object of the invention is to provide a kind of embedded type touch control panel, and its photo-sensitive cell is arranged in the pixel of display white, but so ambient light direct irradiation photosensitive film transistor, to solve the relatively poor problem of known embedded type touch control panel luminous sensitivity.
The invention provides a kind of embedded type touch control panel, it comprises one first pixel, one second pixel, one the 3rd pixel, and one the 4th pixel, each pixel comprises two adjacent sweep traces respectively, two adjacent data lines and this two adjacent sweep trace intersect vertically, an and pixel thin film transistor, this pixel thin film transistor has a grid and is electrically connected wherein one scan line, one source pole is electrically connected a wherein data line, an and drain electrode electrical connection one pixel electrode, and this first pixel, this second pixel, and the 3rd pixel comprise one first filter layer respectively, one second filter layer, and one the 3rd filter layer, to show the first wavelength light, the second wavelength light, and three-wavelength light, the 4th pixel comprises the 4th filter layer, show the 4th wavelength light or do not comprise filter layer, the white light of display backlight emission, the 4th pixel comprises a photo-sensitive cell in addition.
[description of drawings]
For above-mentioned and other purposes of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of accompanying drawing:
Fig. 1 is the circuit diagram of known embedded type touch control panel.
Fig. 2 is known embedded type touch control panel pixels structural representation.
Fig. 3 is the circuit diagram of embedded type touch control panel of the present invention.
Fig. 4 and Fig. 5 are respectively first embodiment of embedded type touch control panel of the present invention and the synoptic diagram of second embodiment.
Fig. 6 shows that red light, green light, blue light and the white light of different illumination shine the voltage difference that a photosensitive film transistor causes.
[main element symbol description]
10: embedded type touch control panel 12: top glass substrate
14: lower glass substrate 16: sweep trace
18: data line 20: pixel thin film transistor
22: pixel electrode 24: red filter layer
26: green filter layer 28: blue color filter layer
30: black matrix" 32: photosensitive film transistor
34: common line 36: read thin film transistor (TFT)
38: read line 100: the embedded type touch control panel
102: sweep trace 104: data line
106: pixel thin film transistor 108: photosensitive film transistor
110: read thin film transistor (TFT) 112: common line
114: read line 116: color pixel
118: green pixel 120: blue pixel
122: white pixel
[embodiment]
Known display panels is to utilize red, blue and green three kinds of pixels to come the display color image, in order to improve resolution and brightness, recently the display panels of development comprises redness, blueness, green and white four kinds of pixels such as (or yellow or purples), wherein white pixel does not have filter layer, but directly shows the white light of backlight emission.Embedded type touch control panel of the present invention with the photo-sensitive cell integration and making in the white pixel of above-mentioned liquid crystal panel, to improve the luminous sensitivity of this photo-sensitive cell.
Fig. 3 is the circuit diagram of embedded type touch control panel of the present invention, the sweep trace 102 of many horizontal arrangement and the data line 104 of many arranged perpendicular are formed on the lower glass substrate (not shown), and two adjacent sweep traces 102 and two adjacent data lines 104 are around constituting a pixel.Each pixel can be divided into redness 116, green 118, blueness 120 and white 122 pixels according to shown color, wherein redness 116, green 118, blue 120 pixels have a red filter layer, a green filter layer and a blue color filter layer respectively and are formed on the top glass substrate (not shown), and white pixel does not then have filter layer.As shown in Figure 3, redness 116, green 118, blueness 120 and white 122 pixels all comprise a pixel thin film transistor 106 as a display element, it has a grid and is electrically connected with one scan line 102, one source pole is electrically connected with a data line 104, and a drain electrode is electrically connected with a pixel electrode (not shown).White pixel comprises a photosensitive film transistor 108 and especially and reads thin film transistor (TFT) 110 with as a photo-sensitive cell.Photosensitive film transistor 108 has a grid and one source pole and is electrically connected with the common line 112 of a horizontal arrangement simultaneously, and one drains and reads thin film transistor (TFT) 110 and be electrically connected.Read thin film transistor (TFT) 110 and have a grid and be electrically connected with one scan line 102, one source pole is electrically connected with the read line 114 of an arranged perpendicular, and a drain electrode is electrically connected with photosensitive film transistor 108.In white pixel, the grid of pixel thin film transistor 106 and the grid that reads thin film transistor (TFT) 110 are electrically connected with two adjacent sweep traces 102 around this pixel respectively.
Fig. 4 and Fig. 5 are respectively first embodiment of embedded type touch control panel of the present invention and the synoptic diagram of second embodiment.Embedded type touch control panel 100 according to the first embodiment of the present invention, redness 116, green 118, blueness 120 and white 122 pixels are distributed in embedded type touch control panel 100 regularly, one photo-sensitive cell comprises photosensitive film transistor (not shown) and reads thin film transistor (TFT) 110 and is formed in the white pixel 122, and one along the read line 114 of vertical direction configuration with read thin film transistor (TFT) 110 and be electrically connected.Similarly, embedded type touch control panel according to a second embodiment of the present invention, redness 116, green 118, blueness 120 and white 122 pixels are distributed in embedded type touch control panel 100 regularly, one photo-sensitive cell comprises photosensitive film transistor (not shown) and reads thin film transistor (TFT) 110 and is formed in the white pixel 122, and one along the read line 114 of horizontal direction configuration with read thin film transistor (TFT) 110 and be electrically connected.
Fig. 6 shows that red light, green light, blue light and the white light of different illumination shine the voltage difference that a photosensitive film transistor causes, because this voltage difference is the pressure drop that photocurrent produces after through a fixed resistance, therefore voltage difference is bigger, and the photocurrent that expression produces is stronger.General environment light can be learnt by Fig. 6 that in the scope of 1-1000 illumination in this scope, white light and green light can produce big voltage difference.If photosensitive film transistor 108 is arranged at green pixel 118, may cause the show image generation color of contact panel to change.On the contrary, if photosensitive film transistor 108 is arranged at white pixel 122,, therefore there is not influence when the display color image because white pixel 122 can not lighted usually fully.
Embedded type touch control panel of the present invention is that photo-sensitive cell is formed in the white pixel, therefore ambient light need not penetrate filter layer and can direct irradiation sensitization approach unconcerned transistor, and it is produced than the high light electric current, thereby solve the problem that known embedded type touch control panel has relatively poor luminous sensitivity.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking the accompanying Claim book person of defining.
Claims (23)
1, a kind of embedded type touch control panel, comprise one first pixel, one second pixel, one the 3rd pixel, and one the 4th pixel, each pixel comprises two adjacent sweep traces respectively, two adjacent data lines and this two adjacent sweep trace intersect vertically, an and pixel thin film transistor, this pixel thin film transistor has a grid and is electrically connected wherein one scan line, one source pole is electrically connected a wherein data line, an and drain electrode electrical connection one pixel electrode, and this first pixel comprises one first filter layer to be used for showing one first wavelength light, this second pixel comprises one second filter layer to be used for showing one second wavelength light, the 3rd pixel comprises one the 3rd filter layer to be used for showing a three-wavelength light, the 4th pixel comprises the 4th filter layer, show one the 4th wavelength light or do not comprise filter layer, the white light of display backlight emission, wherein the 4th pixel comprises a photo-sensitive cell in addition.
2, embedded type touch control panel according to claim 1, wherein this first filter layer is a red filter layer, and this first wavelength light is a red light, this second filter layer is a green filter layer, and this second wavelength light is a green light, and the 3rd filter layer is a blue color filter layer, and this three-wavelength light is a blue light, the 4th filter layer is a yellow or purple filter layer, and the 4th wavelength light is a sodium yellow or purple light.
3, this embedded type touch control panel according to claim 1, also comprise a top glass substrate and a lower glass substrate, wherein this first, second and the 3rd filter layer be formed at this top glass substrate, and this pixel thin film transistor, this sweep trace, this data line, this pixel electrode and this photo-sensitive cell are formed at this lower glass substrate.
4, this embedded type touch control panel according to claim 1, wherein this photo-sensitive cell comprises a photosensitive film transistor and and reads thin film transistor (TFT).
5, this embedded type touch control panel according to claim 4, wherein this photosensitive film transistor has a grid and one source pole is electrically connected a common line simultaneously, and a drain electrode is electrically connected this and reads thin film transistor (TFT).
6, this embedded type touch control panel according to claim 4, wherein this reads thin film transistor (TFT) and has a grid and be electrically connected wherein another sweep trace, and one source pole is electrically connected a read line, and a drain electrode is electrically connected this photosensitive film transistor.
7, this embedded type touch control panel according to claim 6, wherein this read line is parallel with this data line and vertical with this sweep trace.
8, this embedded type touch control panel according to claim 6, wherein this read line is parallel with this sweep trace and vertical with this data line.
9, this embedded type touch control panel according to claim 6, wherein this photosensitive film transistor is used for sensing one ambient light and produce a photocurrent.
10, this embedded type touch control panel according to claim 9, wherein this reads thin unconcerned transistor and is used for reading this photocurrent, and utilizes this read line that this photocurrent is sent to a signal processor.
11, this embedded type touch control panel according to claim 1, wherein this pixel thin film transistor is used for the data voltage that this data line transmits is write this pixel electrode, with show image.
12, a kind of embedded type touch control panel, comprise one first pixel, one second pixel, one the 3rd pixel, and one the 4th pixel, each pixel comprises two adjacent sweep traces respectively, two adjacent data lines and this two adjacent sweep trace intersect vertically, an and pixel thin film transistor, this pixel thin film transistor has a grid and is electrically connected wherein one scan line, one source pole is electrically connected a wherein data line, an and drain electrode electrical connection one pixel electrode, and this first pixel comprises one first filter layer to be used for showing one first wavelength light, this second pixel comprises one second filter layer to be used for showing one second wavelength light, the 3rd pixel comprises one the 3rd filter layer to be used for showing a three-wavelength light, the 4th pixel is that a transparent organic layer does not have the light of filter layer in order to display backlight, and wherein the 4th pixel comprises a photo-sensitive cell in addition.
13, embedded type touch control panel according to claim 12, wherein this first filter layer is a red filter layer, and this first wavelength light is a red light, this second filter layer is a green filter layer, and this second wavelength light is a green light, the 3rd filter layer is a blue color filter layer, and this three-wavelength light is a blue light, and this transparent organic layer is in order to the light of display backlight.
14, this embedded type touch control panel according to claim 12, also comprise a top glass substrate and a lower glass substrate, wherein this first, second and the 3rd filter layer be formed at this top glass substrate, and this pixel thin film transistor, this sweep trace, this data line, this pixel electrode and this photo-sensitive cell are formed at this lower glass substrate.
15, this embedded type touch control panel according to claim 12, wherein this photo-sensitive cell comprises a photosensitive film transistor and and reads thin film transistor (TFT).
16, this embedded type touch control panel according to claim 15, wherein this photosensitive film transistor has a grid and one source pole is electrically connected a common line simultaneously, and a drain electrode is electrically connected this and reads thin film transistor (TFT).
17, this embedded type touch control panel according to claim 15, wherein this reads thin film transistor (TFT) and has a grid and be electrically connected wherein another sweep trace, and one source pole is electrically connected a read line, and a drain electrode is electrically connected this photosensitive film transistor.
18, this embedded type touch control panel according to claim 17, wherein this read line is parallel with this data line and vertical with this sweep trace.
19, this embedded type touch control panel according to claim 17, wherein this read line is parallel with this sweep trace and vertical with this data line.
20, this embedded type touch control panel according to claim 17, wherein this photosensitive film transistor is used for sensing one ambient light and produce a photocurrent.
21, this embedded type touch control panel according to claim 20, wherein this reads thin unconcerned transistor and is used for reading this photocurrent, and utilizes this read line that this photocurrent is sent to a signal processor.
22, this embedded type touch control panel according to claim 12, wherein this pixel thin film transistor is used for the data voltage that this data line transmits is write this pixel electrode, with show image.
23, this embedded type touch control panel according to claim 12, wherein the light of this backlight is white light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100938239A CN100443969C (en) | 2006-06-20 | 2006-06-20 | Touch control faceplate, and fabricating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100938239A CN100443969C (en) | 2006-06-20 | 2006-06-20 | Touch control faceplate, and fabricating method |
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| Publication Number | Publication Date |
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| CN101093293A CN101093293A (en) | 2007-12-26 |
| CN100443969C true CN100443969C (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100938239A Active CN100443969C (en) | 2006-06-20 | 2006-06-20 | Touch control faceplate, and fabricating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101869921B (en) * | 2009-04-24 | 2011-12-28 | 元太科技工业股份有限公司 | Wire-drawing device |
| CN101598864B (en) * | 2009-06-25 | 2013-01-02 | 友达光电股份有限公司 | Touch control panel |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5198474B2 (en) * | 2008-01-31 | 2013-05-15 | シャープ株式会社 | Display device, active matrix substrate |
| US8044943B2 (en) * | 2008-06-03 | 2011-10-25 | Himax Technologies Limited | Touch panel |
| CN101900899B (en) * | 2009-05-25 | 2012-03-07 | 瀚宇彩晶股份有限公司 | Optical touch panel structure |
| CN101699333B (en) * | 2009-06-30 | 2011-12-28 | 深超光电（深圳）有限公司 | Touch display panel |
| CN102314247B (en) * | 2010-06-29 | 2013-12-11 | 瀚宇彩晶股份有限公司 | Touch panel |
| CN102314248A (en) * | 2010-06-29 | 2012-01-11 | 瀚宇彩晶股份有限公司 | Contact panel and pel array thereof |
| CN102830531B (en) * | 2012-07-27 | 2015-03-11 | 京东方科技集团股份有限公司 | TFT (Thin Film Transistor) array substrate, manufacturing method and liquid crystal display device |
| TWI688890B (en) * | 2019-02-12 | 2020-03-21 | 友達光電股份有限公司 | Display panel and driving method for the same |
| CN109856860B (en) * | 2019-03-29 | 2022-04-19 | 深圳创维－Rgb电子有限公司 | Liquid crystal display module and display device |
| CN113109954B (en) * | 2021-04-02 | 2022-03-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN1689025A (en) * | 2002-10-17 | 2005-10-26 | 三星电子株式会社 | Liquid crystal display device built-in finger printing device and method of manufacturing the same |
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Cited By (2)
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| CN101869921B (en) * | 2009-04-24 | 2011-12-28 | 元太科技工业股份有限公司 | Wire-drawing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101093293A (en) | 2007-12-26 |
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Effective date of registration: 20180119 Address after: Hsinchu, China Taiwan Hsinchu Science Park Industrial force line six 8 Patentee after: Taiwan Semiconductor Manufacturing Co., Ltd. Address before: China Taiwan Taoyuan County Patentee before: Hanyu Colour Crystal Co., Ltd. |