CN101211032B - LCD device and its display method - Google Patents
LCD device and its display method Download PDFInfo
- Publication number
- CN101211032B CN101211032B CN2006100646230A CN200610064623A CN101211032B CN 101211032 B CN101211032 B CN 101211032B CN 2006100646230 A CN2006100646230 A CN 2006100646230A CN 200610064623 A CN200610064623 A CN 200610064623A CN 101211032 B CN101211032 B CN 101211032B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- substrate
- crystal indicator
- control electrode
- voltage
- 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
The invention relates to a liquid crystal display device. The liquid crystal display device comprises a backlight module and a liquid crystal panel. The liquid crystal panel includes a first basal plate, a second basal plate arranged oppositely to the first basal plate, and a liquid crystal layer which is positioned between the first basal plate and the second basal plate. The first basal plate comprises a first glass base, and a common electrode layer, an insulation layer and a control electrode which are arranged in order on one side of the first glass base, which adjacent to the liquid crystal layer. The second basal plate includes a second glass base and a thin film transistor layer which is arranged on one side of the second glass base, which is adjacent to the liquid crystal layer, and the thin film transistor layer comprises a plurality of thin film transistors and a plurality of pixel electrodes. When a gray scale voltage is applied to the pixel electrodes while not applying the voltage to the control electrode, the liquid crystal display device works in a wide visual angle state; when the voltage is applied to the pixel electrodes and the control electrode, the wide visual angle state switches to a narrow visual angle state.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator, the particularly a kind of liquid crystal indicator that can control angular field of view.
Background technology
Advantages such as radiationless, frivolous and power saving that liquid crystal indicator has have been widely used in various information, communication and the consumer products.General liquid crystal indicator develops towards two aspects according to different needs: aspect individual's use, the visual angle is minimized, prevent that fileinfo from leaking; Aspect commercial affairs use and family's use, make the visual angle maximization as far as possible, so that sharing, more people use.At present, display is all made super wide viewing angle type, realizes narrow viewing angle characteristic with the peep-proof film again.
Seeing also Fig. 1, is a kind of dark attitude work synoptic diagram of prior art liquid crystal indicator.This liquid crystal indicator 100 comprises that a display panels 10 and is adjacent the backlight module 20 of setting.This display panels 10 comprises Polarizer 14 on one first glass substrate 11, parallel second glass substrate 12 that is oppositely arranged with this first glass substrate 11, the liquid crystal layer 13,, once Polarizer 15, a plurality of bar shaped positive electrode 121, a plurality of bar shaped negative electrode 122 and two-layer alignment film (figure does not show).This liquid crystal layer 13 is clipped between this first glass substrate 11 and this second glass substrate 12.This bar shaped positive electrode 121 and these bar shaped negative electrode 122 opposing parallel are arranged on this second glass substrate, 12 contiguous liquid crystal layer 13 1 sides.This time Polarizer 15 is arranged on this second glass substrate 12 away from liquid crystal layer 13 1 sides.Should go up Polarizer 14 and be arranged on this first glass substrate 11 away from liquid crystal layer 13 1 sides.This two-layer alignment film is separately positioned on this first glass substrate 11 and this second glass substrate 12 contiguous liquid crystal layer 13 1 sides.The polarization direction K of this time Polarizer 15 and this bar shaped positive electrode 121 and these bar shaped negative electrode 122 angles at 45.The alignment direction of these two alignment films is consistent with the polarization direction K of following Polarizer 15.
When this bar shaped positive electrode 121 was not powered pressure with this bar shaped negative electrode 122, the major axis of this liquid crystal molecule 18 was all arranged along the alignment direction of alignment film, and promptly this liquid crystal molecule 18 is also along the polarization direction K arrangement of Polarizer 15 down.And the polarization direction L that goes up Polarizer 14 is vertical mutually with the polarization direction K of following Polarizer 15.The light beam that is sent by module 20 backlight is through becoming the polarized light of K direction after the polaroid 15 down, this polarized light is through behind the liquid crystal layer 13, and the polarization direction still is K, and is vertical mutually with the polarization direction L of upper polarizer 14, therefore light beam can not pass through, and this display panels 10 shows dark attitude.
Seeing also Fig. 2, is the bright attitude work synoptic diagram of liquid crystal indicator 100 shown in Figure 1.When this bar shaped positive electrode 121 is applied in voltage with this bar shaped negative electrode 122, produce an electric field between these two electrodes 121,122, this electric field twists liquid crystal molecule 18 in the plane that is parallel to first glass substrate 11 and second glass substrate 12, thereby the polarized light of the K direction after the polaroid 15 under the process is changed through liquid crystal layer 13 rear polarizer directions, and wherein consistent with the polarization direction L of upper polarizer 14 light component passes through.Control the anglec of rotation of liquid crystal molecule 18 by regulation voltage,, and then can realize that picture shows with the percent of pass of modulated beam of light.In procedure for displaying, 18 of liquid crystal molecules planar twist, so the picture on all angles do not have than big difference, and then can enlarge the visual angle of this display panels 10.
When needs prevent to peep and when becoming narrow visual angle, need to attach a peep-proof film in that this display panels 10 is outside, this peep-proof film adopts miniature blinds technology, and is similar with window shutter, can only see screen content in the certain angle scope.This peep-proof film is limited in angular field of view in 60 degree in the horizontal direction.Watch screen if surpass the direction of 30 degree from left and right visual angle, can only see pitch-dark picture.
Can control angular field of view in rational zone though attach the peep-proof film, liquid crystal indicator 100 switches to the inconvenient operation at narrow visual angle by wide viewing angle, and if the peep-proof film attach out-of-flatness, the image quality that then influence is normal when using.
Summary of the invention
Problem for the liquid crystal indicator visual angle blocked operation inconvenience that solves prior art is necessary to provide a kind of visual angle to switch better simply liquid crystal indicator.
A kind of liquid crystal indicator, it comprises a backlight module and a display panels, this display panels comprise one first substrate, one and second substrate and that is oppositely arranged of this first substrate be clipped in liquid crystal layer between this first substrate and this second substrate; This first substrate comprises one first substrate of glass, and the common electrode layer, the insulation course and that are arranged on contiguous this liquid crystal layer one side of this first substrate of glass in regular turn are arranged on the control electrode on this insulation course; This second substrate comprises one second substrate of glass and is arranged on a tft layer of contiguous this liquid crystal layer one side of this second substrate of glass that this tft layer comprises a plurality of thin film transistor (TFT)s and a plurality of pixel electrode.These a plurality of pixel electrodes receive gray scale voltage.When applying gray scale voltage to this pixel electrode, and when not applying voltages to control electrode, this liquid crystal indicator works in the wide viewing angle state; When not only applying gray scale voltage to pixel electrode but also when applying voltages to this control electrode, this liquid crystal indicator switches to narrow visual angle state by the wide viewing angle state.
Compared to prior art, liquid crystal indicator of the present invention can by whether applies voltage to this control electrode to carry out the visual angle and switches, simple to operation.
Description of drawings
Fig. 1 is a kind of dark attitude work synoptic diagram of prior art liquid crystal indicator.
Fig. 2 is the bright attitude work synoptic diagram of liquid crystal indicator shown in Figure 1.
Fig. 3 is the side view of liquid crystal indicator one better embodiment of the present invention.
Fig. 4 is the floor map of the control electrode of liquid crystal indicator shown in Figure 3.
The waveform synoptic diagram of gray scale voltage and control voltage when Fig. 5 is the demonstration of the narrow visual angle of liquid crystal indicator shown in Figure 3.
Fig. 6 is the light path synoptic diagram of the control electrode of liquid crystal indicator shown in Figure 3 when being applied in voltage.
Embodiment
Seeing also Fig. 3, is the side view of liquid crystal indicator one better embodiment of the present invention.This liquid crystal indicator 200 comprises a liquid crystal display panel with wide visual angle 30 and a backlight module 40.These backlight module 40 contiguous these liquid crystal display panel with wide visual angle 30 are provided with.
This display panels 30 comprise one first substrate 310, one and second substrate 320 that is oppositely arranged of this first substrate 310 and be clipped in this first substrate 310 and this second substrate 320 between a liquid crystal layer 330.
This first substrate 310 comprises one first substrate of glass 312, be arranged on one first polaroid 311 of this first substrate of glass 312, be arranged on a colored filter 313, a common electrode layer 314, an insulation course 315, a control electrode 316 and one first both alignment layers 317 of these first substrate of glass, 312 contiguous these liquid crystal layer 330 1 sides in regular turn away from these liquid crystal layer 330 1 sides.
This second substrate 320 comprises one second substrate of glass 322, be arranged on one second polaroid 321 of this second substrate of glass 322, be arranged on a tft layer 323 and one second both alignment layers 324 of these second substrate of glass, 322 contiguous these liquid crystal layer 330 1 sides in regular turn away from these liquid crystal layer 330 1 sides.
This tft layer 323 comprises a plurality of thin film transistor (TFT)s (figure does not show) and a plurality of pixel electrode 3231.This first both alignment layers 317 is vertical mutually with the alignment direction of this second both alignment layers 324.This first polaroid 311 is vertical mutually with the polarization direction of this second polaroid.This display panels 30 is the liquid crystal display panel with wide visual angle that adopt the multi-zone vertical alignment nematic technology.The material of this control electrode 316 and this pixel electrode 3231 is tin indium oxide or indium zinc oxide.
Seeing also Fig. 4, is the floor map of the control electrode 316 of this liquid crystal indicator 200.This control electrode 316 is latticed, defines a plurality of spacer regions 3162 therebetween.5% to 95% of the area that these spacer region 3162 shared areas can be these a plurality of pixel electrodes 3231.
Seeing also Fig. 5, is the waveform synoptic diagram of this liquid crystal indicator 200 narrow visual angles gray scale voltage and control voltage when showing.Vcom is the voltage of this public electrode 314, and V0, V1......V62, V63 are gray scale voltages, i.e. the voltage of this pixel electrode 3231, and Vctrl is the control voltage of this control electrode 316.
This waveform synoptic diagram does not become the principle of work of this liquid crystal indicator 200 of example explanation with the voltage Vcom of this public electrode 314.This gray scale voltage has V0, V1......V62 and V63 totally 64 rank, and the absolute value of gray scale voltage diminishes gradually from V0 to V63, the V0 maximum, and the V63 minimum, this 64 rank gray scale voltage can form the electric field of 64 kinds of varying strengths in this liquid crystal layer 330.The liquid crystal molecule that this 64 rank gray scale voltage adopts the frame inversion mode to control this liquid crystal layer 330 rotates and makes each pixel can show 64 kinds of pictures.
When applying one on this control electrode 316 during with the anti-phase control voltage Vctrl of this gray scale voltage, pressure reduction of this control voltage Vctrl and this gray scale voltage forms a new electric field in this liquid crystal layer 330.When the pressure reduction of this control voltage Vctrl and this gray scale voltage V63 reaches the liquid crystal saturation voltage, the pressure reduction of this control voltage Vctrl and other rank gray scale voltage also reaches the liquid crystal saturation voltage, no matter promptly this gray scale voltage is which rank among V0, V1......V62 and the V63, the new electric field that the pressure reduction of this control voltage Vctrl and this gray scale voltage forms can make this liquid crystal molecule be in state of saturation.The rotation effect that is in the liquid crystal molecule of state of saturation disappears, thereby light can not be in the zone of state of saturation by liquid crystal molecule, and this zone is called dark state zone.
Seeing also Fig. 6, is the control electrode 316 of this liquid crystal indicator 200 light path synoptic diagram when being applied in voltage.When this control electrode 316 is applied in voltage, this spacer region 3162 is normal viewing areas, can pass through fully from the light a of these backlight module 40 vertical incidence, and the light b of oblique incidence has only the part outgoing owing to the partly shielding effect that is subjected to this dark state zone, and the incident ray c that oblique angle is bigger then can't outgoing owing to the shielding fully that is subjected to this dark state zone.
When this control electrode 316 did not apply voltage, this liquid crystal indicator 200 was operated in normal wide viewing angle state.Because this liquid crystal indicator 200 comprises a control electrode 316, when this control electrode 316 was applied voltage, the light of oblique incidence was subjected to partly shielding effect or shielding fully, thereby the visual angle of this LCD 200 is narrowed down and realized that narrow visual angle shows.That is, this liquid crystal indicator 200 can by whether applies voltage to this control electrode 316 to carry out the visual angle and switches, simple to operation.
It is described that liquid crystal indicator of the present invention is not limited to above-mentioned embodiment.For example, control electrode can also be the pectination of tool vertical bar shaped broach, and its broach direction can make the visual angle, the left and right sides of this liquid crystal indicator narrow down when being vertical, and its broach direction can make the last downwards angle of visibility of this liquid crystal indicator narrow down when being horizontal.Control electrode also can be the pectination of tool waveform or bending shape broach.The angular field of view of the size decision liquid crystal indicator of control electrode spacer region, the control electrode spacer region is more little, and then the angular field of view of liquid crystal indicator is narrow more, and the control electrode spacer region is big more, and the angular field of view of liquid crystal indicator is wide more.
Claims (9)
1. liquid crystal indicator, it comprises a backlight module and a display panels, this display panels comprise one first substrate, one and second substrate and that is oppositely arranged of this first substrate be clipped in liquid crystal layer between this first substrate and this second substrate; This first substrate comprises one first substrate of glass, is arranged on a common electrode layer and an insulation course of contiguous this liquid crystal layer one side of this first substrate of glass in regular turn; This second substrate comprises one second substrate of glass and is arranged on a tft layer of contiguous this liquid crystal layer one side of this second substrate of glass, this tft layer comprises a plurality of thin film transistor (TFT)s and a plurality of pixel electrode, these a plurality of pixel electrodes receive gray scale voltage, it is characterized in that: this first substrate comprises that further one is control electrode latticed or that pectination is arranged, this control electrode is arranged on this insulation course, when applying gray scale voltage to this pixel electrode, and when not applying voltages to control electrode, this liquid crystal indicator works in the wide viewing angle state; When not only applying gray scale voltage to pixel electrode but also when applying voltages to this control electrode, this liquid crystal indicator switches to narrow visual angle state by the wide viewing angle state.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this latticed control electrode defines a plurality of spacer regions.
3. liquid crystal indicator as claimed in claim 2 is characterized in that: the shared area of these a plurality of spacer regions be these a plurality of pixel electrodes area 5% to 95%.
4. liquid crystal indicator as claimed in claim 1 is characterized in that: the broach of this pectination control electrode is a vertical bar shaped.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: the broach of this pectination control electrode is a waveform.
6. liquid crystal indicator as claimed in claim 1 is characterized in that: the broach of this pectination control electrode is a bending shape.
7. liquid crystal indicator as claimed in claim 2 is characterized in that: be applied to the voltage on this control electrode and be applied to the difference of the gray scale voltage on this pixel electrode greater than the liquid crystal saturation voltage.
8. liquid crystal indicator as claimed in claim 7 is characterized in that: the voltage and this gray scale voltage that are applied on this control electrode are anti-phase.
9. liquid crystal indicator as claimed in claim 1 is characterized in that: when not applying voltages to control voltage, this liquid crystal indicator is operated in uses multiple domain vertically under the wide viewing angle state that the row technology realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100646230A CN101211032B (en) | 2006-12-29 | 2006-12-29 | LCD device and its display method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100646230A CN101211032B (en) | 2006-12-29 | 2006-12-29 | LCD device and its display method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101211032A CN101211032A (en) | 2008-07-02 |
| CN101211032B true CN101211032B (en) | 2011-06-15 |
Family
ID=39611170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100646230A Expired - Fee Related CN101211032B (en) | 2006-12-29 | 2006-12-29 | LCD device and its display method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101211032B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540549B (en) * | 2010-12-24 | 2015-04-08 | 群康科技(深圳)有限公司 | Manufacturing method of color filtering substrate and display device as well as liquid-crystal display device |
| JP5573704B2 (en) | 2011-01-27 | 2014-08-20 | 日本電気硝子株式会社 | Liquid crystal lens manufacturing method and liquid crystal lens |
| TWI437551B (en) * | 2011-10-24 | 2014-05-11 | Au Optronics Corp | Image privacy protecting method |
| JP2019514044A (en) * | 2016-03-15 | 2019-05-30 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Peeping prevention film, display device, terminal, and method of manufacturing the peeping prevention film and display device |
| CN105759528B (en) * | 2016-05-19 | 2019-01-18 | 京东方科技集团股份有限公司 | Display panel assembly, display device and its driving method |
| CN106444104B (en) * | 2016-10-10 | 2019-04-05 | 昆山龙腾光电有限公司 | The changeable liquid crystal display device in visual angle |
| CN107330347B (en) * | 2017-05-25 | 2020-06-16 | 努比亚技术有限公司 | Display method, terminal and computer readable storage medium |
| CN107255895B (en) * | 2017-07-03 | 2020-08-04 | 昆山龙腾光电股份有限公司 | Array substrate, liquid crystal display device and driving method |
| US11187928B2 (en) | 2017-07-04 | 2021-11-30 | Infovision Optoelectronics (Kunshan) Co., Ltd. | Method for driving liquid crystal display device capable of switching between wide viewing angle and narrow viewing angle |
| CN108196380A (en) * | 2017-12-29 | 2018-06-22 | 昆山龙腾光电有限公司 | The liquid crystal display device and driving method that visual angle can be switched |
| CN108983462A (en) * | 2018-08-27 | 2018-12-11 | 昆山龙腾光电有限公司 | The driving method of liquid crystal display device |
| CN109884828B (en) * | 2019-04-17 | 2022-01-11 | 京东方科技集团股份有限公司 | Display panel and mobile terminal |
| CN110349509A (en) * | 2019-06-21 | 2019-10-18 | 深圳市华星光电技术有限公司 | Changeable peep-proof display device |
| CN112289244A (en) * | 2019-07-11 | 2021-01-29 | 群创光电股份有限公司 | Electronic device |
| CN112394547A (en) * | 2019-08-16 | 2021-02-23 | 中强光电股份有限公司 | Visual angle control structure and display device |
| CN112327545B (en) * | 2020-11-18 | 2024-03-26 | 合肥鑫晟光电科技有限公司 | Display device |
-
2006
- 2006-12-29 CN CN2006100646230A patent/CN101211032B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101211032A (en) | 2008-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101211032B (en) | LCD device and its display method | |
| TWI640822B (en) | Liquid crystal display device with switchable viewing angle and method for switching viewing angle | |
| CN1949349B (en) | Liquid crystal display device and driving method thereof | |
| US9651818B2 (en) | Liquid crystal display panel comprising different spacing distances between pixel electrodes corresponding to specific color resist blocks | |
| WO2013146635A1 (en) | Liquid crystal drive method and liquid crystal display device | |
| US10928687B1 (en) | Display device and driving method thereof | |
| US20210142746A1 (en) | Liquid crystal display device | |
| US20200355951A1 (en) | Liquid crystal display device and display control method thereof | |
| JP2007171674A (en) | Transflective liquid crystal display device and mobile terminal device | |
| JP4794884B2 (en) | Horizontal electric field drive mode liquid crystal display device | |
| US20070152930A1 (en) | Method for driving LCD device | |
| CN110824739B (en) | Display panel, control method and display device | |
| WO2016090751A1 (en) | Liquid crystal display panel | |
| CN108983462A (en) | The driving method of liquid crystal display device | |
| JPWO2019103012A1 (en) | Display device | |
| TWI345653B (en) | Liquid crystal display device and display method of same | |
| CN210199449U (en) | Liquid crystal display panel | |
| CN107045234B (en) | Liquid crystal display panel and display control method | |
| EP3690538A1 (en) | Display panel, display device, and driving method thereof | |
| CN111679461A (en) | Display device with switchable field of view and display method thereof | |
| JP3775089B2 (en) | Liquid crystal device and electronic device | |
| WO2017130293A1 (en) | Liquid crystal display device | |
| KR20060083643A (en) | Liquid crystal display | |
| CN113917721A (en) | Display panel with switchable wide and narrow viewing angles, driving method and display device | |
| CN113066418A (en) | Source driving chip and display device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20161229 |