CN100451751C - Light sensing display apparatus and display panel thereof - Google Patents
Light sensing display apparatus and display panel thereof Download PDFInfo
- Publication number
- CN100451751C CN100451751C CNB2006100946907A CN200610094690A CN100451751C CN 100451751 C CN100451751 C CN 100451751C CN B2006100946907 A CNB2006100946907 A CN B2006100946907A CN 200610094690 A CN200610094690 A CN 200610094690A CN 100451751 C CN100451751 C CN 100451751C
- Authority
- CN
- China
- Prior art keywords
- sub
- pixel
- display panel
- light sensing
- viewing area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A kind of optical sensing device includes a display panel and a optical sensing controller. The display panel includes a display area, a non-display area, and several sub-pixels and at least one void sub-pixel. The non-display area circles the display area. The sub-pixels are set in the display area to display the image. Besides, the void sub-pixel is also set in the display area and possesses an optical sensing subassembly. The optical sensing controller and optical subassembly are coupled.
Description
(1) technical field
The invention relates to a kind of display device and display panel thereof, and particularly relevant for a kind of light sensing display apparatus and display panel thereof with the brightness of empty sub-pixel sensing surrounding environment.
(2) background technology
External environment has suitable influence for the display effect of display device.For example under bright external light source, picture is comparatively bright.But under dark environment, but waviness phenomena can occur, and the too bright eye fatigue that causes easily of picture.The unsteady phenomenon of the black of dark color image is very obvious, and image contrast then reduces significantly.And picture is dark, and color representation is beautiful inadequately again.Therefore, general display device can a plug-in optical sensing subassembly, in order to detect the brightness of surrounding environment, to adjust the bright of picture, improves user's vision comfort level.
In existing U.S. Pat 5831693, its exposure has a plurality of optical sensing subassemblies to be located in four end points of the non-display area (VA) of display panel respectively, and the operational amplification circuit that need provide by display system is with the photocurrent amplification of optical sensing subassembly output.Therefore, the situation that can cause complex system and cost to increase.Again, the perforate of optical sensing subassembly in the VA district will take excess area, and influences the visual appearance of display device.
In addition, in TaiWan, China patent TW575849, it discloses a kind of adjustable Thin Film Transistor-LCD.Be used as an optical sensing subassembly by the thin film transistor (TFT) at least one peripheral region that is arranged at infrabasal plate, to detect the brightness of an environment light source.Quite be similar to the design that U.S. Pat 5831693 is proposed, can face above-mentioned all problems equally.
That is to say, U.S. Pat 5831693 and TaiWan, China patent TW575849 comprise take that the margo frontalis area is excessive, the excessive visual appearance that easily makes of cabling space waste and complicated, open region is influenced and arrange because of dot type and to cause the problem that light angle can't be comprehensive to exist.
In addition, in existing Japanese Patent No. 11-125841, its in each sub-pixel, two thin film transistor (TFT)s of layout (ThinFilmTransistor, TFT); One is display frame usefulness, and another transmits the light data current for being used to after sensitization.Wherein, optical sensing subassembly is to be positioned in the sub-pixel, makes that viewing area sub-pixel cabling is intricate, and the indivedual sensing component of layout in the single sub-pixel, and aperture opening ratio is reduced.Moreover, its on the TFT basal plate making process the more long-pending optoelectronic semiconductor in Shen make usefulness with opto-electronic conversion, can cause process complexity to improve, cost is promoted.It is arranged at optical sensing subassembly in the sub-pixel in order to display frame of viewing area, utilizes the backguy layout that control signal wire is pulled out for use again.This kind design easily causes the problem that sub-pixel inner opening rate reduces, the inner cabling design in viewing area interlocks complexity in order to display frame to exist.
(3) summary of the invention
In view of this, purpose of the present invention is providing a kind of light sensing display apparatus and display panel thereof exactly, makes full use of the empty sub-pixel position that is positioned at the viewing area and carries out the sensing component design.Can avoid the excessive aesthetic problem that causes of aperture area to be improved and the sensitization angle comparatively comprehensive, effective promotion feeling optical efficiency.
According to one first purpose of the present invention, a kind of light sensing display apparatus is proposed, comprise that a display panel reaches
One light sensing controller.Display panel comprises a viewing area, a non-display area, a plurality of sub-pixel and at least one empty sub-pixel.Non-display area system is provided with around the viewing area.This a little pixel is to be arranged in the viewing area, in order to display frame.Again, this empty sub-pixel also is to be arranged at one of at least side of viewing area, and has an optical sensing subassembly.Light sensing controller and optical sensing subassembly couple.
According to one second purpose of the present invention, a kind of display panel is proposed, can be in order to sensing irradiation intensity, and electrically connect with the light sensing controller, display panel comprises a viewing area, a non-display area, a plurality of sub-pixel and at least one empty sub-pixel.Non-display area system is provided with around the viewing area.This a little pixel is arranged in the viewing area, in order to display frame.This empty sub-pixel is arranged at one of at least side of viewing area, and has an optical sensing subassembly, in order to sensing irradiation intensity, and exports light sensing signal light sensing controller so far.
For the present invention's above-mentioned purpose, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
(4) description of drawings
Fig. 1 illustrates the synoptic diagram according to the light sensing display apparatus of a preferred embodiment of the present invention.
Fig. 2 illustrates the connection diagram of empty sub-pixel in the display panel of Fig. 1.
Fig. 3 illustrates the graph of a relation of irradiation intensity and photocurrent (leading) value.
Signal
(5) embodiment
Please be simultaneously with reference to shown in Fig. 1,2, Fig. 1 illustrates the synoptic diagram according to the light sensing display apparatus of a preferred embodiment of the present invention, and Fig. 2 illustrates the connection diagram of empty sub-pixel in the display panel of Fig. 1.As shown in Figure 1, 2, light sensing display apparatus 300 comprises a display panel 310 and a light sensing controller 320.Display panel 310 comprises a viewing area AA, a non-display area VA, a plurality of sub-pixel pi and at least one empty sub-pixel (dummysub-pixel) du, and a plurality of empty sub-pixel du are for example arranged.Non-display area VA system is provided with around viewing area AA.Sub-pixel pi system is arranged in the AA of viewing area, in order to display frame.In each empty sub-pixel du an optical sensing subassembly is arranged, it is in order to sensing irradiation intensity, and output light sensing signal S1.On the non-display area VA then configuration data driver SD and scanner driver GD with control sub-pixel pi display frame.
In the present embodiment, the empty sub-pixel du of tool optical sensing subassembly 500 can continuous or discontinuous three sides that are disposed at viewing area AA.In addition, the empty sub-pixel du of tool optical sensing subassembly 500 also can continuous or discontinuous adjacent two sides or relative two sides that are disposed at viewing area AA.In addition, the empty sub-pixel du of tool optical sensing subassembly 500 also can continuous or discontinuous one of the viewing area AA side that is disposed at.
Because, the spectrum of solar radiation, mainly be to be the center with the visible light, the infrared light of its distribution range from the ultraviolet light of 0.3 micron (μ m) to several microns is main, if be converted into the energy of photon, then about 0.4 electron-volt (eV) between the 4eV, when the energy of photon less than semi-conductive energy gap (energybandgap), then photon is not absorbed by semiconductor, and this moment, semiconductor was transparent for photon.When the energy of photon greater than semi-conductive energy gap, the energy that then is equivalent to semiconductor energy gap will be absorbed by semiconductor, it is right to produce electronics-electric hole, remaining energy then consumes with the form of heat.Therefore make the energy gap of the material of optical sensing subassembly 500, it is right to produce electronics-electric hole effectively.
In general, desirable optical sensing subassembly 500 materials must possess following properties is arranged:
Energy gap at 1.1eV between the 1.7eV.
2. direct gap semiconductor.
3. the material non-toxic of Zu Chenging.
4. can utilize the technology of thin film deposition, but and large tracts of land manufacturing.
5. good photoelectric transformation efficiency is arranged.
And the energy gap of knowing silicon the sixth of the twelve Earthly Branches is 1.12eV, and is to contain the element that flow control two is enriched on the earth, therefore is accepted in the use of light sensing material.Again, silicon atom can be distinguished into monocrystalline silicon, polysilicon and amorphous silicon according to different crystallization modes.Higher and the stable performance of the photoelectric transformation efficiency of monocrystalline silicon and polysilicon, but amorphous silicon is stronger about 500 times than silicon to the absorbability of light, so for amorphous silicon, only the very thin one deck of needs just can be the absorption of the Energy Efficient of photon; But the large tracts of land low temperature depositing so can be saved the wide variety of materials cost on substrates such as the more cheap glass of price, pottery or metal.
It is right to produce electronics electricity hole after the a-Si material is subjected to rayed, and this is subjected to compound (Recombination) effect of light a large amount of mobile carriers to be provided and to promote its photoconduction (Photo-Conductivity).Please refer to Fig. 3, it illustrates the graph of a relation of irradiation intensity and photocurrent (leading) value.Then be directly proportional with exposure intensity by the photoconductive size after the rayed, also stronger photoconduction of irradiation is bigger.Therefore, the present invention as main photosensory assembly, still is not limited to this with a-SiTFT, also can use substrates such as polysilicon, monocrystalline silicon to design.
In the present invention's notion, if when using a-Si as the channel layer of optical sensing subassembly 500, though it is subjected to light characteristic quite sharp, but because the carrier mobility of a-Si thin film transistor (TFT) is very low by (about 0.5 ~ 1cm2/V-s), as providing enough big electric current to use, then assembly W/L value (layout area) must be increased and can reach to system end.
Lift an example explanation, if the resolution of display panel 310 is 176 * RGB * 220 (as 1.9 o'clock panels), but and the length breadth ratio of optical sensing subassembly 500 sizes of each empty sub-pixel layout, be W/L=300/5, therefore, (176*3+2) * 2+220*2=1500 empty sub-pixel is arranged, amount to the length breadth ratio that whole sensing component maximum can design and be (1500*300)/5=450000/5.
If optical sensing subassembly 500 area layout are become big; Then to existing patent US5,831,693 reach TaiWan, China patent TW575849, owing to be with dot type distribution one by one, add that being necessary for optical sensor does perforate, could allow optical sensing subassembly 500 accept the irradiation of ambient light.Therefore if under the same terms, have patent US5 now, 831,693 optical sensor layout area increases, and then will certainly make the shell perforated area become big, and the visual appearance problem will be appeared in one's mind.Therefore, the present invention not only can avoid the excessive attractive in appearance bad problem that is caused of aperture area and be improved.Owing to utilize the strip layout, comparatively comprehensive for the sensitization angle, effectively the promotion feeling optical efficiency is different from existing patent US5, and 831,693 reach the some sensing design of TaiWan, China patent TW575849.In addition, because placement position is pulled to the outermost zone of viewing area, the situation that therefore can reduce margo frontalis area and cabling complexity takes place.
The present invention is for Jap.P. patent No. 11-125841, then be to utilize the empty sub-pixel of viewing area to carry out the control signal wire layout, the problem of not having backguy cross-over connection and complexity exists, and is also less in order to the influence of the sub-pixel display data of display frame for inside, viewing area.
The driving of optical sensing subassembly 500, in the embodiment of Fig. 1, system one is driven by light sensing controller 320, also can individually be driven by a light sensing controller 320.Or several optical sensing subassemblies 500 are driven by a light sensing controller 320.And when practical application, light sensing controller 320 might be integrated with data driver SD or scanner driver GD.Also or light sensing controller 320 be an integrating controller with data driver SD and scanner driver GD.Its above-mentioned situation is all in the present invention's category.
Light sensing display apparatus that the above embodiment of the present invention disclosed and display panel thereof make full use of the empty sub-pixel position that is positioned at the viewing area and carry out the sensing component design.Can avoid the excessive aesthetic problem that causes of aperture area.And owing to utilize the strip layout, comparatively comprehensive for the sensitization angle, effective promotion feeling optical efficiency.In addition, because placement position is pulled to the outermost zone of viewing area, the situation that therefore can reduce margo frontalis area and cabling complexity takes place.And the influence of inner sub-pixel display data is also less in the viewing area.Under existing processing procedure, integrate photosensory assembly in display device, improve portable electronic devices (as mobile phone or personal digital assistant) surcharge.Moreover in the application of different driving device, the different sensitization layout patterns of arranging in pairs or groups reach and reduce the generation of transmission signals loss situation.
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention.Have common knowledge in the technical field under any this case, without departing from the spirit and scope of the invention, when doing various changes and retouching.Therefore protection domain attached claim person of defining after looking of the present invention is as the criterion.
Claims (14)
1. light sensing display apparatus comprises:
One display panel comprises:
One viewing area;
One non-display area is to be provided with around this viewing area;
A plurality of sub-pixels are arranged in this viewing area, in order to display frame; And
At least one empty sub-pixel is arranged at one of at least side of this viewing area, and has an optical sensing subassembly; And
One light sensing controller couples with this optical sensing subassembly.
2. device as claimed in claim 1 is characterized in that: this display panel more comprise a plurality of should the void sub-pixel, those optical sensing subassemblies interlink with series connection, and electrically connect with this light sensing controller.
3. device as claimed in claim 1 is characterized in that: this display panel more comprise a plurality of should the void sub-pixel, those optical sensing subassemblies electrically connect with this light sensing controller respectively.
4. device as claimed in claim 1 is characterized in that: this display panel more comprise a plurality of should the void sub-pixel, those optical sensing subassemblies electrically connect with this light sensing controller respectively in the mode of subregion.
5. device as claimed in claim 1 is characterized in that: this display panel more comprise a plurality of should the void sub-pixel, those empty sub-pixels are continuous or discontinuous one of at least side of this viewing area that is arranged at.
6. device as claimed in claim 1 is characterized in that: this optical sensing subassembly is a thin film transistor (TFT), and the channel layer of this thin film transistor (TFT) is that one of them constitutes at least by monocrystalline silicon, polysilicon or amorphous silicon.
7. device as claimed in claim 1, it is characterized in that: this display panel more comprises a thin film transistor base plate, a colored filter substrate and a liquid crystal layer, this liquid crystal layer is to be arranged between this thin film transistor base plate and this colored filter substrate, and those sub-pixels and this void sub-pixel system are arranged on this thin film transistor base plate.
8. display panel can be in order to sensing irradiation intensity, and electrically connect with a light sensing controller, and this display panel comprises:
One viewing area;
One non-display area is to be provided with around this viewing area;
A plurality of sub-pixels are arranged in this viewing area, in order to display frame; And
At least one empty sub-pixel is arranged at one of at least side of this viewing area, and has an optical sensing subassembly, in order to sensing irradiation intensity, and exports a light sensing signal to this light sensing controller.
9. display panel as claimed in claim 8 is characterized in that: more comprise a plurality of should the void sub-pixel, those optical sensing subassemblies are to interlink with series connection, and electrically connect with this light sensing controller.
10. display panel as claimed in claim 8 is characterized in that: more comprise a plurality of should the void sub-pixel, those optical sensing subassemblies are to electrically connect with this light sensing controller respectively.
11. display panel as claimed in claim 8 is characterized in that: more comprise a plurality of should the void sub-pixel, those optical sensing subassemblies are to electrically connect with this light sensing controller respectively with partitioned mode.
12. display panel as claimed in claim 8 is characterized in that: more comprise a plurality of should the void sub-pixel, those empty sub-pixels are continuous or discontinuous one of at least side of this viewing area that is arranged at.
13. display panel as claimed in claim 8 is characterized in that: in this optical sensing subassembly be a thin film transistor (TFT), one of them constitutes the passage series of strata of this thin film transistor (TFT) at least by monocrystalline silicon, polysilicon or amorphous silicon.
14. display panel as claimed in claim 8, it is characterized in that: more comprise a thin film transistor base plate, a colored filter substrate and a liquid crystal layer, this liquid crystal layer is to be arranged between this thin film transistor base plate and this colored filter substrate, and those sub-pixels and this void sub-pixel are to be arranged on this thin film transistor base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100946907A CN100451751C (en) | 2006-06-26 | 2006-06-26 | Light sensing display apparatus and display panel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100946907A CN100451751C (en) | 2006-06-26 | 2006-06-26 | Light sensing display apparatus and display panel thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101097303A CN101097303A (en) | 2008-01-02 |
| CN100451751C true CN100451751C (en) | 2009-01-14 |
Family
ID=39011270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100946907A Expired - Fee Related CN100451751C (en) | 2006-06-26 | 2006-06-26 | Light sensing display apparatus and display panel thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100451751C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728401B (en) * | 2008-10-10 | 2012-12-19 | 华映视讯（吴江）有限公司 | Photosensory assembly and portable electronic device |
| CN102314032B (en) * | 2011-08-16 | 2014-07-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN105097785A (en) * | 2014-05-09 | 2015-11-25 | 群创光电股份有限公司 | Display panel device with multiple electrostatic discharge rings |
| CN107357101A (en) * | 2017-05-12 | 2017-11-17 | 惠科股份有限公司 | A kind of display panel, the manufacturing method thereof of display panel and display device |
| CN108845466B (en) * | 2018-06-28 | 2021-08-31 | 珠海市魅族科技有限公司 | Display screen and display device |
| CN110993638B (en) * | 2018-10-03 | 2023-08-18 | 群创光电股份有限公司 | Display device |
| CN111445869B (en) * | 2020-04-30 | 2022-04-15 | 京东方科技集团股份有限公司 | Brightness control device, control method thereof and display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6809718B2 (en) * | 2002-01-18 | 2004-10-26 | Chi Mei Optoelectronics Corporation | TFT-LCD capable of adjusting its light source |
| CN1637533A (en) * | 2003-10-23 | 2005-07-13 | 三星电子株式会社 | Light sensing element, array substrate having the same and liquid crystal display apparatus having the same |
| US20050199876A1 (en) * | 2004-02-06 | 2005-09-15 | Sanyo Electric Co., Ltd. | Display device having photosensor and method of fabricating the same |
-
2006
- 2006-06-26 CN CNB2006100946907A patent/CN100451751C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6809718B2 (en) * | 2002-01-18 | 2004-10-26 | Chi Mei Optoelectronics Corporation | TFT-LCD capable of adjusting its light source |
| CN1637533A (en) * | 2003-10-23 | 2005-07-13 | 三星电子株式会社 | Light sensing element, array substrate having the same and liquid crystal display apparatus having the same |
| US20050199876A1 (en) * | 2004-02-06 | 2005-09-15 | Sanyo Electric Co., Ltd. | Display device having photosensor and method of fabricating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101097303A (en) | 2008-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100451751C (en) | Light sensing display apparatus and display panel thereof | |
| CN101458121B (en) | Light sensing apparatus and display device thereof | |
| CN108710237B (en) | Display panel and display device | |
| CN101447145B (en) | Display device and electronic apparatus | |
| TWI419103B (en) | Liquid crystal display apparatus, light-sensing element and apparatus for controlling luminance of a light source | |
| US20100079711A1 (en) | Liquid crystal display device equipped with a photovoltaic conversion function | |
| CN106935144A (en) | display module and terminal device | |
| US7843028B2 (en) | Electro-optical device, semiconductor device, display device, and electronic apparatus having the same | |
| CN101135795B (en) | Display apparatus, manufacturing method and control method thereof and optoelectronic device | |
| CN106200183B (en) | Thin-film transistor array base-plate and production method and liquid crystal display panel | |
| CN101315475A (en) | Liquid crystal display, electronic device, and method for controlling brightness of illumination unit of liquid crystal display | |
| CN104536179A (en) | Flat panel display | |
| US20090128529A1 (en) | Display Device and Electronic Device | |
| JP5740132B2 (en) | Display device and semiconductor device | |
| US7999259B2 (en) | Display device having a photodiode whose p region has an edge width different than that of the n region | |
| WO2020220513A1 (en) | Display panel and display device | |
| CN109859720B (en) | Display panel, driving method and manufacturing method thereof, and display device | |
| CN102856400A (en) | Photoelectric conversion module, device and array device | |
| US20070273778A1 (en) | Photo sensing display apparatus and display panel thereof | |
| CN108922427A (en) | Display screen component and electronic equipment | |
| CN101593785A (en) | Optics sensing element, its manufacture method and optical touch-control device | |
| EP4300584A1 (en) | Display panel, display module, and electronic device | |
| CN103323970A (en) | Display panel, preparation method of display panel and display device | |
| CN109031823A (en) | Display screen, electronic equipment and its control method | |
| CN208488621U (en) | Display screen and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |