CN101859037A - Liquid crystal display (LCD) device - Google Patents
Liquid crystal display (LCD) device Download PDFInfo
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- CN101859037A CN101859037A CN200910106549A CN200910106549A CN101859037A CN 101859037 A CN101859037 A CN 101859037A CN 200910106549 A CN200910106549 A CN 200910106549A CN 200910106549 A CN200910106549 A CN 200910106549A CN 101859037 A CN101859037 A CN 101859037A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims abstract description 62
- 239000000758 substrate Substances 0.000 claims abstract description 60
- 238000004040 coloring Methods 0.000 claims description 19
- 239000003086 colorant Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010409 thin film Substances 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The embodiment of the invention provides a liquid crystal display (LCD) device. The LCD device comprises a backlight module, a first substrate, a second substrate, a plurality of pixel units and a control module, wherein the backlight module is provided with a light source; the first substrate is positioned above the backlight module; the second substrate is separated from the first substrate and faces the first substrate; the plurality of pixel units are arranged between the first substrate and the second substrate; each pixel unit comprises liquid crystals positioned between the first substrate and the second substrate and also comprises an electrochromic optical filter positioned between the second substrate and the backlight module; the control module is used for receiving a video signal of an image pixel, acquiring color information corresponding to the video signal of the image pixel and driving the electrochromic optical filter to display color corresponding to the video signal of the image pixel according to control voltage corresponding to the color information. By implementing the LCD device, the display resolution of an LCD and the display effect of images can be improved.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of liquid crystal indicator.
Background technology
At present, (Liquid Crystal Display, LCD) device is a kind of panel display apparatus that uses liquid crystal to come display image in liquid crystal display.Compare with other display device, the LCD device is relatively thin and light, and has lower driving voltage and power consumption, thereby is widely used.
Existing liquid crystal indicator diagrammatic cross-section is asked for an interview shown in Figure 1.Backlight module 11 has comprised light source 111 members such as grade, the light of light source 111 emissions can be upwards through transparent glass substrate 12, transparent glass substrate 12 is provided with thin film transistor (TFT) (Thin Film Transistor, TFT) 13, control via thin film transistor (TFT), liquid crystal layer 14 can be regulated the brightness rank brightness of passing its light, light passes colored filter (the Color Filter on liquid crystal layer 14 another transparent glass substrates 15 of back arrival, CF) 16, in addition, also be provided with holding capacitor 17 and black matrix 18.A pixel of existing liquid crystal indicator is by three pixel cells (Sub-pixel), the structure of every pixel cell is identical with structure shown in Figure 1, the colored filter of three pixel cells is respectively red (Red, R), green (Green, G) and blue (Blue, B), the white light of the rank brightness that do not shine together sees through this colored filter promptly can produce different brightness redness, green and blueness (B), and the color dot that three kinds of blend of colors can obtain a colour afterwards projects on the panel of LCD.
Pixel cell in the pixel of existing LCD can only show a kind of constant color (red, green or blue), therefore three vision signals of RGB of a pixel in the image are carried in respectively in above-mentioned three pixel cells and show, thereby the area of space of an image pixel is extended to three pixel cell zones.
Summary of the invention
The embodiment of the invention provides a kind of Liquid crystal disply device and its preparation method, can improve the resolution of the demonstration of LCD, improves the display effect of image.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of liquid crystal indicator, comprising:
Backlight module, described backlight module has light source;
First substrate is positioned at the top of described backlight module;
Second substrate is separated by and in the face of described first substrate;
Between described first substrate and second substrate a plurality of pixel cells are set, each pixel cell comprises the liquid crystal between described first substrate and second substrate, it is characterized in that,
Described pixel cell also comprises and is arranged between described second substrate and the electrochromism optical filter between the described backlight module;
Described liquid crystal indicator also comprises control module, be used to the pairing colouring information of vision signal that receives the vision signal of image pixel and obtain described image pixel, the pairing color of vision signal that shows described image pixel according to the described electrochromism optical filter of the pairing control driven of this colouring information.
Implement the embodiment of the invention, by in liquid crystal indicator, adopting the electrochromism optical filter, this electrochromism optical filter is between described second substrate and between the described backlight module, control module receives the vision signal of image pixel and discerns the pairing colouring information of vision signal of described image pixel, the pairing color of vision signal that shows described image pixel according to the described electrochromism optical filter of the pairing control driven of described colouring information, the vision signal of a pixel can be finished demonstration by a pixel cell in the image, make that a pixel space is corresponding with a pixel cell space of LCD in the image, thereby improve resolution and display effect that image shows.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing liquid crystal indicator;
Fig. 2 is the structural representation of liquid crystal indicator first embodiment of the present invention;
Fig. 3 is the structural representation of liquid crystal indicator second embodiment of the present invention;
Fig. 4 is the structural representation of liquid crystal indicator the 3rd embodiment of the present invention;
Fig. 5 is the structural representation of control module in the embodiment of the invention liquid crystal indicator;
Fig. 6 be in the embodiment of the invention control module to the control timing figure of electrochromism optical filter.
Embodiment
The embodiment of the invention provides a kind of Liquid crystal disply device and its preparation method, can improve the resolution of the demonstration of LCD, improves the display effect of image.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
The structural representation of Fig. 2 liquid crystal indicator first embodiment of the present invention, the described liquid crystal indicator of the embodiment of the invention comprise backlight module 21, first substrate 22, second substrate 23 and control module (not shown) wherein:
Between described first substrate 22 and described second substrate 23 a plurality of pixel cells are set, this pixel cell comprises liquid crystal 24 and electrochromism optical filter 25, wherein:
Described liquid crystal 24 is between described first substrate 22 and described second substrate 23;
Described electrochromism optical filter 25 is between described second substrate 23 and between the described backlight module 21;
Described control module, be used to the pairing colouring information of vision signal that receives the vision signal of image pixel and obtain image pixel, according to the pairing color of vision signal of the pairing control driven of this color electrochromism optical filter 25 display image pixels; Herein, the vision signal of image pixel comprises three vision signals of red, green, blue of image pixel.
Liquid crystal described in this example 24 loads thereon voltage according to described control module, produces corresponding molecule rotation, thereby influences the direction that light that backlight module 21 sends is advanced, and produces different GTG brightness;
In the present embodiment, electrochromism optical filter 25 can be arranged on second substrate 23 and liquid crystal 24 between, electrochromism optical filter 25 can produce corresponding color according to the voltage that control module loads thereon, and isolates the light wave of the wavelength coverage corresponding with described color.For example red corresponding voltage V1, then at electrochromism optical filter 25 during at on-load voltage V1, electrochromism optical filter 25 will present redness, become a slice Red lightscreening plate.
In addition, liquid crystal indicator shown in Figure 2 can also comprise thin film transistor (TFT) 26, holding capacitor 27 and black matrix 28, wherein:
Thin film transistor (TFT) 26, this thin film transistor (TFT) 26 are positioned at first substrate 22 and regard on second substrate, 23 sides, in order to produce voltage, control turning to of liquid crystal;
Need to prove that when specifically implementing, electrochromism optical filter 25 can be arranged on second substrate 23 and regard on first substrate, 22 sides, and the top of liquid crystal 24, and adjacent with black matrix 28.
Fig. 3 is the structural representation of liquid crystal indicator second embodiment of the present invention, basic identical and similar among each Elementary Function and structure and liquid crystal indicator of the present invention first embodiment in this routine described liquid crystal indicator, institute's difference is, the optical filter of electrochromism described in this example 25 ' regard between second substrate, 23 sides and the liquid crystal 24 at first substrate 22.
In this embodiment, electrochromism optical filter 25 ' elder generation produces corresponding color according to the voltage that control module loads thereon, and isolate the light wave of the wavelength coverage corresponding with described color, the color of control by its light, liquid crystal 24 by control module control by electrochromism optical filter 25 ' after have the brightness of certain color light.For example red corresponding voltage V1, then when electrochromism optical filter 25 ' at control module on-load voltage V1, electrochromism optical filter 25 ' will present redness, become a slice Red lightscreening plate, the white light of backlight module 21 emission earlier by electrochromism optical filter 25 ', electrochromism optical filter 25 ' can separate red light wave in this white light light, this red light wave are again by liquid crystal 24, and liquid crystal 24 is controlled the GTG brightness of its light.
Fig. 4 is the structural representation of liquid crystal indicator the 3rd embodiment of the present invention, basic identical and similar among each Elementary Function and structure and liquid crystal indicator of the present invention first embodiment in this routine described liquid crystal indicator, institute's difference is that electrochromism optical filter 25 among this embodiment is " between first substrate 22 and backlight module 21.
In this embodiment, the brightness that has certain color light behind the electrochromism optical filter 25 " earlier the voltage that loads thereon according to control module produces corresponding color; and isolate the light wave of the wavelength coverage corresponding with described color; control is by the color of its light, and liquid crystal 24 controls are by electrochromism optical filter 25 ".For example red corresponding voltage V1, then at electrochromism optical filter 25 " when on-load voltage V1; electrochromism optical filter 25 " will present redness, become a slice Red lightscreening plate, the white light of backlight module 21 emissions is earlier by electrochromism optical filter 25 "; " can separate red light wave in this white light light, this red light wave is again by liquid crystal 24, and liquid crystal 24 is controlled the GTG brightness of its light for electrochromism optical filter 25.
Fig. 5 is the structural representation of control module in the embodiment of the invention liquid crystal indicator, this control module is used to the pairing colouring information of vision signal that receives the vision signal of image pixel and obtain image pixel, according to the pairing color of vision signal of the pairing control driven of colouring information electrochromism optical filter 25 display image pixels.
Herein, with 3CCD (3Charge Coupled Device, three-chip type Charge Coupled Device (CCD) imageing sensor) vision signal of the image pixel of colour TV camera collection is that example describes, after the 3CCD video camera passes through a kind of special prism with light, be divided into red, green, blue three-color, accept each color and be converted to electric signal with a slice CCD respectively, like this, the vision signal of pixel comprises red (R), green (G) of image pixel, blue (B) trichromatic vision signal frequently in the image of 3CCD colour TV camera collection.The order that control module drives electrochromism optical filter 25 show this image pixel in the color of three vision signal correspondences of RGB, control module comprises and receives submodule, obtains submodule, first controlling sub, second controlling sub, wherein:
Receive submodule, be used to receive the vision signal of image pixel;
According to the above description, receive three vision signals of RGB that submodule receives image pixel.
Obtain submodule, be used to obtain the pairing colouring information of vision signal that receives the image pixel that submodule receives;
Herein, because three vision signals of RGB are transmitted respectively, obtain submodule and then will obtain the pairing colouring information of vision signal that the reception submodule receives, it is red for example obtaining out the pairing colouring information of this vision signal.
First controlling sub is used for according to obtaining colouring information that submodule obtains to electrochromism optical filter 25 output control voltages, and this control voltage is used to drive that described electrochromism optical filter 25 produces and the pairing color of vision signal of image pixel.
Herein, it is red for example obtaining the pairing color of vision signal that submodule gets access to image pixel, first controlling sub is to electrochromism optical filter 25 output control voltages, this control voltage is used to drive electrochromism optical filter 25 and produces redness, and electrochromism this moment optical filter 25 becomes a slice Red lightscreening plate.The relation of the pairing color of vision signal of this control voltage and image pixel can be stored in advance.
First controlling sub also comprises timing submodule and judgement submodule, wherein:
The timing submodule is used to detect this first control voltage duration;
Stop submodule, reach Preset Time, then stop to electrochromism optical filter 25 output control voltages when timing module detects this control voltage duration.
Timing submodule and stop submodule and be used for when each vision signal of 25 pairs of image pixels of electrochromism optical filter shows makes the start time and concluding time of corresponding video signals of demonstration time of each vision signal of image pixel and CCD output synchronous.Time that should be default can be corresponding with the duration of the corresponding video signals of CCD output, specifically can decide according to the video format that adopts.
Second controlling sub is used for inciding the GTG brightness of the light of electrochromism optical filter 25 by liquid crystal 24 controls according to receiving the vision signal that submodule receives.
Herein, during concrete enforcement, second controlling sub is according to the numerical value that receives the vision signal that submodule receives, control voltages by thin film transistor (TFT) 26 to liquid crystal 24 outputs, change the distortion angle of liquid crystal, thereby the GTG brightness of the light of electrochromism optical filter 25 is incided in control, and this light works with the color one that electrochromism optical filter 25 presents can produce red, the green or blue color of different brightness.
Fig. 6 shows in the embodiment of the invention control module to the control timing figure of electrochromism optical filter 25, this illustrated in a video field data duration, pixel cell is to the display timing generator of red (R), green (G), blue (B) three vision signals, and transverse axis is a time T among the figure; The longitudinal axis is the control voltage V of electrochromism optical filter 25, and V1, V2, V3 are to be respectively the control voltage of electrochromism optical filter 25 corresponding to red (R), green (G), blue (B) three vision signals; T2, T4, T6 are respectively the duration of red (R) in the video field data duration, green (G), blue (B) three field video data signals, typically, the time interval of the single frames that drives with 60HZ is 16.7ms, when a video field being divided into three son fields of red, green, blue, the time interval of each height field is 5.56ms, thereby the time interval of son field is enough lacked the transition that human eye can not be perceived its field intensity; T7 is a video field data duration, the promptly above-mentioned single frames time interval; T1, T3, T5 are respectively the time of control module to electrochromism optical filter 25 Loading Control voltage V1, V2 and V3, and T1, T3, T5 summation are much smaller than T7.As seen from the figure, control module is in the red field data duration, to be carried in corresponding to the control voltage of redness on the electrochromism optical filter 25, drive and produce redness, make its optical filter that becomes a slice redness, the control voltage duration is T1, and general T1 can be provided with it much smaller than T2, the concrete time can be adjusted, and causes that the persistence of vision of human eye gets final product; Control module can also in T1, finish the loading of this pixel red field video data and according to this red field video data to liquid crystal 24 Loading Control voltages, the brightness that control liquid crystal 24 changes by its light, this light with certain brightness combines with electrochromism optical filter 25, can produce the red light with certain brightness.Need to prove, above-mentioned process be in the LCD pixel cell show according to corresponding Red Square vision signal and show red process, in the Red Square data duration, control module can also be controlled in the LCD other pixel cells and show corresponding red according to corresponding Red Square vision signal, its control procedure is identical with aforementioned control procedure, no longer describe in detail, in the red field data duration, just can drive the danger signal in the pixel cell display image pixel of LCD thus.So analogize, take similar operation in green field data duration and blue field data duration, then can in a video field data duration, drive three kinds of colors of RGB of pixel in the pixel cell order display image of LCD, and the demonstration time of these three kinds of colors is all much smaller than display cycle of piece image, the vision that all can cause human eye keeps effect, human eye can be felt as the mixed colored point of R, G, B three looks stack formation, therefore can observe the view picture coloured image.Under the pixel cell of the liquid crystal indicator of the embodiment of the invention situation identical with the pixel cell of existing liquid crystal indicator, can the basis on improve 3 times resolution, improve the display effect of image; Under the resolution of the liquid crystal indicator of the embodiment of the invention situation identical, can save three minutes two display unit with existing liquid crystal indicator resolution.
In sum, the embodiment of the invention provides a kind of liquid crystal indicator, by adopting the electrochromism optical filter, the electrochromism optical filter can produce corresponding color according to the voltage that loads thereon, and isolate the light wave of the wavelength coverage corresponding with described color, control module receives the vision signal of image pixel and obtains the pairing colouring information of vision signal of described image pixel, the pairing color of vision signal that shows described image pixel according to the described electrochromism optical filter of the pairing control driven of this described colouring information, make a pixel cell can finish image pixel in R, G, the demonstration of three vision signals of B, therefore can on the basis of existing liquid crystal indicator, improve 3 times resolution, improve the display effect of image.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (8)
1. liquid crystal indicator comprises:
Backlight module, described backlight module has light source;
First substrate is positioned at the top of described backlight module;
Second substrate is separated by and in the face of described first substrate;
Between described first substrate and second substrate a plurality of pixel cells are set, each pixel cell comprises the liquid crystal between described first substrate and second substrate, it is characterized in that,
Described pixel cell also comprises and is arranged between described second substrate and the electrochromism optical filter between the described backlight module;
Described liquid crystal indicator also comprises control module, be used to the pairing colouring information of vision signal that receives the vision signal of image pixel and obtain described image pixel, the pairing color of vision signal that shows described image pixel according to the described electrochromism optical filter of the pairing control driven of this colouring information.
2. liquid crystal indicator as claimed in claim 1 is characterized in that, described electrochromism optical filter is between described second substrate and described liquid crystal.
3. liquid crystal indicator as claimed in claim 1 is characterized in that, described electrochromism optical filter is between described first substrate and described liquid crystal.
4. liquid crystal indicator as claimed in claim 1 is characterized in that, described electrochromism optical filter is between described first substrate and described backlight module.
5. liquid crystal indicator as claimed in claim 1 is characterized in that, described control module comprises:
Receive submodule, be used to receive the vision signal of image pixel;
Obtain submodule, be used to obtain the pairing colouring information of vision signal of the image pixel that described reception submodule receives;
First controlling sub, be used for obtaining colouring information that submodule obtains to described electrochromism optical filter output control voltage according to described, described control voltage is used to drive described electrochromism optical filter and produces the pairing color of vision signal with described image pixel.
6. liquid crystal indicator as claimed in claim 5 is characterized in that, described control module also comprises:
Second controlling sub is used for the vision signal of the image pixel that receives according to described reception submodule, incides the GTG brightness of the light of described electrochromism optical filter by described liquid crystal control.
7. liquid crystal indicator as claimed in claim 6 is characterized in that, described first controlling sub comprises:
The timing submodule is used to detect the described control voltage duration;
Stop submodule, reach Preset Time, then stop to export described control voltage to described electrochromism optical filter when described timing module detects the described control voltage duration.
8. as each described liquid crystal indicator of claim 1 to 7, it is characterized in that,
The vision signal of described image pixel comprises three vision signals of red, green, blue of image pixel;
Described control module receives three vision signals of red, green, blue of image pixel and obtains the pairing separately colouring information of three vision signals of red, green, blue of described image pixel, respectively according to three kinds of colors of red, green, blue of the described electrochromism optical filter order of the pairing control driven of this colouring information display image pixel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910106549A CN101859037A (en) | 2009-04-10 | 2009-04-10 | Liquid crystal display (LCD) device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106549A CN101859037A (en) | 2009-04-10 | 2009-04-10 | Liquid crystal display (LCD) device |
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| CN101859037A true CN101859037A (en) | 2010-10-13 |
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| CN200910106549A Pending CN101859037A (en) | 2009-04-10 | 2009-04-10 | Liquid crystal display (LCD) device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102434823A (en) * | 2011-10-17 | 2012-05-02 | 康佳集团股份有限公司 | Liquid crystal display and curve reflective LED (Light Emitting Diode) backlight module thereof |
| WO2013023613A1 (en) * | 2011-08-18 | 2013-02-21 | 京东方科技集团股份有限公司 | Transflective and electrochromic liquid crystal display device |
| CN103869569A (en) * | 2012-12-18 | 2014-06-18 | 株式会社日本显示器 | Display device |
| CN105572987A (en) * | 2015-12-22 | 2016-05-11 | 深圳市华星光电技术有限公司 | Liquid crystal display unit and method for driving liquid crystal display unit to display images |
| TWI730411B (en) * | 2019-09-09 | 2021-06-11 | 大陸商業成科技（成都）有限公司 | Electrochromic display device and driving method thereof |
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2009
- 2009-04-10 CN CN200910106549A patent/CN101859037A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023613A1 (en) * | 2011-08-18 | 2013-02-21 | 京东方科技集团股份有限公司 | Transflective and electrochromic liquid crystal display device |
| US8976437B2 (en) | 2011-08-18 | 2015-03-10 | Boe Technology Group Co., Ltd. | Transflective electrochromic liquid crystal display device |
| CN102434823A (en) * | 2011-10-17 | 2012-05-02 | 康佳集团股份有限公司 | Liquid crystal display and curve reflective LED (Light Emitting Diode) backlight module thereof |
| CN102434823B (en) * | 2011-10-17 | 2015-10-28 | 康佳集团股份有限公司 | A kind of liquid crystal display and curved face reflecting type LED backlight module thereof |
| CN103869569A (en) * | 2012-12-18 | 2014-06-18 | 株式会社日本显示器 | Display device |
| CN105572987A (en) * | 2015-12-22 | 2016-05-11 | 深圳市华星光电技术有限公司 | Liquid crystal display unit and method for driving liquid crystal display unit to display images |
| WO2017107254A1 (en) * | 2015-12-22 | 2017-06-29 | 深圳市华星光电技术有限公司 | Liquid crystal display and method for driving liquid crystal display to display images |
| US10403227B2 (en) * | 2015-12-22 | 2019-09-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Integrated Liquid crystal display device and electrochromic device and driving method for displaying images |
| TWI730411B (en) * | 2019-09-09 | 2021-06-11 | 大陸商業成科技（成都）有限公司 | Electrochromic display device and driving method thereof |
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Application publication date: 20101013 |