CN101923260A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN101923260A CN101923260A CN2009101464835A CN200910146483A CN101923260A CN 101923260 A CN101923260 A CN 101923260A CN 2009101464835 A CN2009101464835 A CN 2009101464835A CN 200910146483 A CN200910146483 A CN 200910146483A CN 101923260 A CN101923260 A CN 101923260A
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Abstract
The invention relates to a liquid crystal display, which comprises a panel, a plurality of gate lines, a plurality of data lines, at least one photodetector and a sensing controller. The panel has a display area; the data lines and the gate lines are intersected mutually to divide the display area of the panel into a plurality of pixels; the gate lines are used for transmitting grid signals to corresponding pixels; the data lines are used for transmitting data signals to corresponding pixels; the photodetectors are respectively arranged in the display area of the panel, respectively correspond to at least one gate line or at least one data line, and are used for sensing the light intensity on the panel so as to generate corresponding sensing signals; and the sensing controller is electrically connected to the photodetectors so as to receive the sensing signals generated by the photodetectors and process the sensing signals, wherein when the gate lines or data lines corresponding to the photodetectors stop transmitting grid signals or data signals, the photodetectors transmit the generated sensing signals to the sensing controller.
Description
Technical field
The present invention relates to a kind of LCD, relate in particular to a kind of its demonstration GTG of adjusting and make its display frame be fit to the LCD of user's visual range.
Background technology
Progress along with science and technology, LCD because of have high image quality, volume is little, in light weight and advantage such as applied range, and be widely used in the various consumption electronic products such as mobile phone, notebook computer, desktop display device and TV, and replaced traditional cathode-ray tube display gradually and become the main flow of display.
Thereby LCD generally is light or the display frame of launch environment light that utilizes module backlight to send, but, thereby light intensity how to detect light that the current backlight module sends or surround lighting makes LCD can mate this light intensity and demonstrates the picture that is fit to user's visual range, is the industry urgent problem.
In order to address the above problem, U.S. Pat 2006/0202947 has disclosed a kind of existing LCD.As shown in Figure 1, above-mentioned LCD comprises liquid crystal panel 300, gate drivers 400, data driver 500, signal controller 600, OPTICAL SENSORS 700, gray scale voltage generator 800 and module backlight 900.Liquid crystal panel 300 comprises a plurality of gate lines G 1, G2...Gn-1, Gn and a plurality of data line D1, D2, D3...Dm, thereby liquid crystal panel 300 is divided into a plurality of pixels.Module 900 backlight has light source 910 and is electrically coupled to signal controller 600.Data driver 500 is electrically coupled to gray scale voltage generator 800 and is passed to corresponding pixel with the GTG that gray scale voltage generator 800 is produced.
OPTICAL SENSORS 700 is electrically coupled to signal controller 600, thereby the light that it sends in order to sensing module 900 backlight and the light intensity of surround lighting produce the corresponding sensing signal, and with sensing signal transmission to signal controller 600 adjusting the GTG that gray scale voltage generator 800 is produced, thereby make the suitable user's of the shown picture of LCD visual range.
See also Fig. 2, liquid crystal panel 300 is divided into a viewing area DA and an outer peripheral areas PA in order to display frame, and outer peripheral areas PA is around viewing area DA.OPTICAL SENSORS 700 is arranged on the outer peripheral areas PA, and gate lines G 1 shown in Figure 1, G2...Gn-1, Gn and data line D1, D2, D3...Dm are the viewing area DA in the cross chart 2 and being connected with gate drivers 400 and data driver 500 shown in Figure 1 respectively.The sensing signal that produces for fear of OPTICAL SENSORS 700 sensings produces the signal coupling with being positioned at signal or the data-signal that viewing area DA gate lines G 1, G2...Gn-1, Gn or data line D1, D2, D3...Dm transmitted, and therefore above-mentioned prior art is that OPTICAL SENSORS 700 is arranged on the outer peripheral areas PA of liquid crystal panel 300.
But, because OPTICAL SENSORS 700 is arranged on the outer peripheral areas PA of liquid crystal panel 300, then the light intensity of the light that sent of its module backlight 900 of responding to and surround lighting is subjected to the influence of LCD frame easily, therefore OPTICAL SENSORS 700 light intensity on the DA of sensing viewing area accurately, the shown picture of LCD also is not suitable for user's visual range.
Summary of the invention
The object of the present invention is to provide a kind of the adjustment to show that GTG makes its display frame be fit to the LCD of user's visual range.
The object of the invention to solve the technical problems is to adopt following technical scheme to realize.
The present invention proposes a kind of LCD, and it comprises a panel, many gate lines, many data lines, at least one OPTICAL SENSORS and sensing controllers.Panel has a viewing area, and many gate lines are arranged on the panel in parallel to each other, and many data lines are arranged on the panel in parallel to each other.Many data lines intersect mutually with many gate lines and the viewing area of panel are divided into a plurality of pixels, and many gate lines are in order to transmitting signal to corresponding pixel, and many data lines in order to communicated data signal to corresponding pixel.At least one OPTICAL SENSORS is separately positioned in the viewing area of panel, and corresponds respectively at least one gate line or at least one data line.Thereby at least one OPTICAL SENSORS produces the corresponding sensing signal in order to the light intensity on the sensing panel.Thereby the sensing controller is electrically connected at least one OPTICAL SENSORS so that sensing signal transmission to the sensing controller that at least one OPTICAL SENSORS was produced is handled.Wherein, when the pairing gate line of at least one OPTICAL SENSORS or data line stop to transmit signal or data-signal, at least one OPTICAL SENSORS with sensing signal transmission that it produced to the sensing controller.
Preferably, at least one OPTICAL SENSORS is corresponding to many gate lines or many data lines.Perhaps, at least one OPTICAL SENSORS is corresponding to the part in the part in many gate lines or many data lines.
Preferably, LCD further comprises at least one sense line, its be electrically connected at respectively between at least one OPTICAL SENSORS and the sensing controller with sensing signal transmission that at least one OPTICAL SENSORS was produced to the sensing controller.Perhaps at least one OPTICAL SENSORS utilize its pairing gate line or data line respectively and with sensing signal transmission that at least one OPTICAL SENSORS produced to the sensing controller.
Preferably, LCD further comprises a gate drivers, and it electrically connects many gate lines so that signal bar gate line at the most to be provided; LCD can further comprise a data driver, and it electrically connects many data lines so that data-signal bar data line at the most to be provided.
Disclosed LCD is separately positioned on OPTICAL SENSORS on the viewing area of panel, and therefore, OPTICAL SENSORS can accurately sense the light intensity on the panel viewing area, and can not be subjected to the influence of LCD frame.LCD can be according to the sensing signal that OPTICAL SENSORS produced, thereby adjusts the demonstration GTG of LCD, makes the shown picture of LCD be fit to user's visual range.In addition, because OPTICAL SENSORS is when transmitting the sensing signal of its sensing generation, its pairing gate line or data line do not transmit signal or data-signal, therefore the signal that can need not transmit with gate line of the sensing signal of OPTICAL SENSORS transmission or the data line data-signal that need transmit produces the signal coupling, and sensing signal, signal and data-signal all can distortions.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a kind of synoptic diagram of existing LCD.
Fig. 2 is the synoptic diagram of the liquid crystal panel of LCD shown in Figure 1.
Fig. 3 is the synoptic diagram of a kind of LCD of disclosing of one embodiment of the invention.
300: liquid crystal panel 400: gate drivers
500: data driver 600: signal controller
700: OPTICAL SENSORS 800: the gray scale voltage generator
900: module 910 backlight: light source
G1, G2...Gn-1, Gn: gate line DA: viewing area
D1, D2, D3...Dm: data line PA: outer peripheral areas,
1000: LCD 1100: panel
1101: viewing area 1200: gate drivers
1300: data driver 1400: the sensing controller
G1, G2 ... Gn: gate line D1, D2 ... Dm: data line
S1, S2, S3: OPTICAL SENSORS
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of LCD, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Fig. 3 has illustrated a kind of LCD 1000 that one embodiment of the invention disclosed, it comprise panel 1100, gate lines G 1, G2 ... Gn, data line D1, D2 ... Dm, gate drivers 1200, data driver 1300, OPTICAL SENSORS S1, S2, S3 and sensing controller 1400.
Panel 1100 can be thin film transistor (TFT) (TFT) substrate of LCD 1000, and it has a viewing area 1101.Gate lines G 1, G2 ... Gn is arranged on the panel 1100 in parallel to each other and passes through viewing area 1101 and electrically connects with gate drivers 1200, and data line D1, D2 ... Dm is arranged on the panel 1100 in parallel to each other and passes through viewing area 1101 and electrically connects with data driver 1300.Data line D1, D2 ... Dm and gate lines G 1, G2 ... thereby the viewing area 1101 that Gn intersects mutually with panel 1100 is divided into a plurality of pixels.Each pixel comprises a thin film transistor (TFT) and a pixel electrode (figure does not show) respectively, thereby the grid of each thin film transistor (TFT) is electrically connected to the conducting state of corresponding gate line with the signal control TFT transmitted on the receiving grid polar curve, its source electrode is electrically connected to corresponding data line to receive the data-signal that transmits on the data line, and its drain is electrically connected to pixel electrode in the respective pixel when thin film transistor (TFT) is in conducting data-signal being passed on the pixel electrode by its source electrode and drain, thereby makes LCD 1000 display frames.This technology is well known to those skilled in the art, and does not repeat them here.
Gate drivers 1200 electrically connect gate lines G 1, G2 ... Gn with provide signal to gate lines G 1, G2 ... Gn; And data driver 1300 electrically connect data line D1, D2 ... Dm with provide data-signal to data line D1, D2 ... Dm.
OPTICAL SENSORS S1, S2, S3 are provided with respectively in the viewing area 1101 of panel 1100, and it corresponds respectively under at least one gate line.Specifically, OPTICAL SENSORS S1, S2, S3 can correspond respectively to gate lines G 1, G2 ... Gn, for example, if have 6 gate lines G 1, G2, G3, G4, G5, G6 on the panel 1100, then OPTICAL SENSORS S1 can be arranged under gate lines G 1, the G2, OPTICAL SENSORS S2 can be arranged under gate lines G 3, the G4, and OPTICAL SENSORS S3 can be arranged under gate lines G 5, the G6.Certainly, OPTICAL SENSORS S1, S2, S3 also can correspond respectively to gate lines G 1, G2 ... the part among the Gn, for example, if have 8 gate lines G 1, G2, G3, G4, G5, G6, G7, G8 on the panel 1100, OPTICAL SENSORS S1 can be arranged under gate lines G 1, the G2, OPTICAL SENSORS S2 can be arranged under gate lines G 4, the G5, and OPTICAL SENSORS S3 can be arranged under gate lines G 7, the G8.
Certainly, the quantity of the OPTICAL SENSORS that disclosed LCD 1000 is comprised is not limited to three, it also can be one, more than two or three, as long as OPTICAL SENSORS is separately positioned on the viewing area of panel 1100, its be used on the viewing area of sensing panel 1100 light intensity and generate the corresponding sensing signal.
Sensing controller 1400 electrically connects OPTICAL SENSORS S1, S2, S3 to receive the sensing signal that OPTICAL SENSORS S1, S2, S3 are generated.In the present embodiment, sensing controller 1400 is to electrically connect OPTICAL SENSORS S1, S2, S3 by corresponding sensing line (not indicating).
In the present invention, OPTICAL SENSORS S1, S2, S3 be its pairing gate lines G 1, G2 ... when Gn stops to transmit signal, with sensing signal transmission that it generated to sensing controller 1400.For example, if OPTICAL SENSORS S1 is corresponding to gate lines G 1, G2, OPTICAL SENSORS S2 is corresponding to gate lines G 3, G4, and OPTICAL SENSORS S3 is corresponding to gate lines G 5, G6, when gate lines G 1, G2 did not transmit signal, the sensing signal transmission that the OPTICAL SENSORS S1 that sensing controller 1400 is promptly controlled corresponding gate lines G 1, G2 generates its sensing was to sensing controller 1400.Because the pairing gate lines G 1 of OPTICAL SENSORS S1 this moment, G2 do not transmit signal, therefore the sensing signal that produced of OPTICAL SENSORS S1 not can and the signal that need transmit of gate lines G 1, G2 between produce the signal coupling, the sensing signal that OPTICAL SENSORS S1 produces can not produce distorted signals.In like manner, when gate lines G 3, G4 did not transmit signal, the sensing signal transmission that the OPTICAL SENSORS S2 that sensing controller 1400 is promptly controlled corresponding gate lines G 3, G4 generates its sensing was to sensing controller 1400.OPTICAL SENSORS S3 also in its pairing gate lines G 5, the sensing signal transmission that just its sensing generated when G6 stops to transmit signal to sensing controller 1400.Certainly, according to gate line to scan order different, the order that OPTICAL SENSORS S1, S2, S3 transmit signal is also just different relatively, these variations those skilled in the art in field for this reason can design easily according to aforementioned content and get, and do not repeat them here.
Disclosed LCD 1000 is separately positioned on OPTICAL SENSORS S1, S2, S3 on the viewing area of panel 1100, therefore, OPTICAL SENSORS S1, S2, S3 can accurately sense the light intensity on panel 1100 viewing areas, and can not be subjected to the influence of LCD 1000 frames.The sensing signal that LCD 1000 can be produced according to OPTICAL SENSORS S1, S2, S3, thus the demonstration GTG of LCD 1000 adjusted, make LCD 1000 shown pictures be fit to user's visual range.
Further, because OPTICAL SENSORS S1, S2, S3 are when transmitting the sensing signal of its sensing generation, its pairing gate line does not transmit signal, therefore the sensing signal of OPTICAL SENSORS S1, S2, S3 transmission can not produce the signal coupling with the signal that gate line need transmit, and sensing signal and signal all can distortions.
In addition, can not utilize the corresponding sensing line between disclosed LCD 1000 its OPTICAL SENSORS S1, S2, S3 and the sensing controller 1400 and electrically connect mutually.For example, OPTICAL SENSORS S1, S2, the S3 any electric connection in can corresponding with it respectively gate line, sensing controller 1400 then is electrically connected to gate drivers 1200.So, OPTICAL SENSORS S1, S2, S3 can be when its pairing gate line do not transmit signal, utilize sensing signal transmission that its corresponding gate line generates its sensing to sensing controller 1400, and then the circuit of LCD 1000 is fairly simple.
Certainly, those skilled in the art also are appreciated that, the present invention can be separately positioned on OPTICAL SENSORS S1, S2, S3 under at least one data line, its can correspond respectively to data line D1, D2 ... Dm, also can correspond respectively to data line D1, D2 ... the part of Dm.When OPTICAL SENSORS S1, S2, S3 did not have communicated data signal in its corresponding data line, just the sensing signal transmission that its sensing is generated was to sensing controller 1400.Can utilize the corresponding sensing line to transmit sensing signal between OPTICAL SENSORS S1, S2, S3 and the sensing controller 1400, also can utilize its corresponding data lines and data driver 1300 to transmit sensing signal.In addition, OPTICAL SENSORS S1, S2, S3 wherein one or more can be set to correspond respectively to one or many gate lines, other OPTICAL SENSORS S1, S2, S3 then are set to correspond respectively to one or many data lines.
In addition, though the OPTICAL SENSORS S1 in the foregoing description, S2, S3 all are arranged in the viewing area, can understand as those skilled in the art, these OPTICAL SENSORS S1, S2, S3 also can equally with prior art be arranged on by the frame.Though it is relatively poor to be arranged on the sensing effect of the other OPTICAL SENSORS of frame, but, still can obtain than prior art sensing result more accurately by the time that the signal between control each signal line (comprising gate line or data line) and OPTICAL SENSORS S1, S2, the S3 transmits.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (7)
1. LCD is characterized in that it comprises:
One panel, it has a viewing area;
Many gate lines, it is arranged on this panel in parallel to each other;
Many data lines, it is arranged on this panel in parallel to each other, many gate lines of these many data lines and this intersect mutually and the viewing area of this panel are divided into a plurality of pixels, these many gate lines are in order to the extremely corresponding pixel of transmission signal, and these many data lines are in order to the extremely corresponding pixel of communicated data signal;
At least one OPTICAL SENSORS, it is separately positioned in the viewing area of this panel, and corresponds respectively at least one gate line or at least one data line, thus this at least one OPTICAL SENSORS produces the corresponding sensing signal in order to the light intensity on this panel of sensing; And
One sensing controller, thus it is electrically connected to this at least one OPTICAL SENSORS and handles with sensing signal transmission to this sensing controller that should at least one OPTICAL SENSORS was produced;
Wherein, when the pairing gate line of this at least one OPTICAL SENSORS or data line stop to transmit signal or data-signal, this at least one OPTICAL SENSORS with sensing signal transmission that it produced to this sensing controller.
2. LCD according to claim 1 is characterized in that this at least one OPTICAL SENSORS is corresponding to these many gate lines or this many data lines.
3. LCD according to claim 1 is characterized in that this at least one OPTICAL SENSORS is corresponding to the part in the part in these many gate lines or this many data lines.
4. LCD according to claim 1, it is characterized in that it further comprises at least one sense line, it is electrically connected at respectively between this at least one OPTICAL SENSORS and this sensing controller with sensing signal transmission that will this at least one OPTICAL SENSORS was produced to this sensing controller.
5. LCD according to claim 1, it is characterized in that this at least one OPTICAL SENSORS is utilized its pairing gate line or data line respectively and sensing signal transmission that will this at least one OPTICAL SENSORS produced to this sensing controller.
6. LCD according to claim 1 is characterized in that it further comprises a gate drivers, and it electrically connects these many gate lines to provide this signal to these many gate lines.
7. LCD according to claim 1 is characterized in that it further comprises a data driver, and it electrically connects these many data lines to provide this data-signal to these many data lines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101464835A CN101923260A (en) | 2009-06-09 | 2009-06-09 | Liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101464835A CN101923260A (en) | 2009-06-09 | 2009-06-09 | Liquid crystal display |
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| CN101923260A true CN101923260A (en) | 2010-12-22 |
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| CN2009101464835A Pending CN101923260A (en) | 2009-06-09 | 2009-06-09 | Liquid crystal display |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110427A (en) * | 2010-12-30 | 2011-06-29 | 友达光电股份有限公司 | Liquid crystal display module |
| CN105023545A (en) * | 2014-04-18 | 2015-11-04 | 全方位数位影像开发股份有限公司 | Self-image correction device and method for liquid crystal display |
| TWI680397B (en) * | 2018-04-03 | 2019-12-21 | 薛英家 | Sensor board and display with sensor board |
-
2009
- 2009-06-09 CN CN2009101464835A patent/CN101923260A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110427A (en) * | 2010-12-30 | 2011-06-29 | 友达光电股份有限公司 | Liquid crystal display module |
| CN105023545A (en) * | 2014-04-18 | 2015-11-04 | 全方位数位影像开发股份有限公司 | Self-image correction device and method for liquid crystal display |
| TWI680397B (en) * | 2018-04-03 | 2019-12-21 | 薛英家 | Sensor board and display with sensor board |
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Application publication date: 20101222 |