CN201425676Y - Liquid crystal grating module, two dimension/three dimension switchable display - Google Patents
Liquid crystal grating module, two dimension/three dimension switchable display Download PDFInfo
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- CN201425676Y CN201425676Y CN2009201323832U CN200920132383U CN201425676Y CN 201425676 Y CN201425676 Y CN 201425676Y CN 2009201323832 U CN2009201323832 U CN 2009201323832U CN 200920132383 U CN200920132383 U CN 200920132383U CN 201425676 Y CN201425676 Y CN 201425676Y
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Abstract
The utility model is suitable for the display field and provides an LC grating module, and a two dimension/three dimension switchable display. The LC grating module comprises two base plates; at leasttwo sets of electrode stripes arranged in a staggered manner are distributed on one of the base plates; all the even columns of electrode stripes in one set of electrode stripes are connected to a first electrode lead, and all the odd columns of electrode stripes are connected to a second electrode lead; and the other set of electrode stripes is connected to a third electrode lead. When in 3D display, pulse voltage is exerted through the first electrode lead and the third electrode lead as well as the second electrode lead and the third electrode lead alternately. The LC grating module is switched between two display states, parallax barriers under the two display states are staggered with each other, and the left/right eye can fell that all the images seen in one period are the pixels ofthe images of left/right eye, so that full resolution is realized in 3D display. Besides, the entire display has the advantages of simple structure, low cost and relatively thin thickness.
Description
Technical field
The utility model belongs to field of display, relates in particular to a kind of liquid crystal grating module, two-dimensional/three-dimensional switchable display.
Background technology
Three-dimensional (3D) Presentation Function of display becomes a key factor that attracts the consumer just gradually now, and on numerous products, be applied, as mobile communication terminal, televisor, computing machine, vehicle-carrying display screen etc., 3D uses will more go deep into our life along with the maturation of technology.
Present 3D scheme all is to carry out selectivity by bar shaped grating pair pixel to block, utilize optical principle to cause the vision difference of human eye, final people can see a secondary 3D rendering in a certain angular field of view of display screen, Fig. 1 is basic binocular parallax schematic diagram, and Fig. 2 shows and adopts the parallax baffle method to realize the principle that 3D shows.The technical scheme that has realizes the switching that 2D/3D shows by additional controllable liquid crystal grating in display, but during the formation of this 3D view, right and left eyes is only seen the pixel of half respectively, causes monitor resolution to reduce by half.Also having a kind ofly provides high quality graphic and sequential to show the automatic stereoscopic display device of the 3D rendering with full resolution by reducing crosstalking between left-eye image and the eye image, but also there is following problems: outside the display unit that backlight and display panel is formed, added polarizer, polarization switch, birefringent plate, viewing zone separator and realized that full resolution 3D shows, additional device is many, cost is higher, complex structure, and the device gross thickness is thicker.
The utility model content
The purpose of this utility model is to provide a kind of liquid crystal grating module, two-dimensional/three-dimensional switchable display, show so that the 3D display can be realized the 3D of full resolution, and cost is low, thin thickness, simple in structure.
The utility model is to realize like this, a kind of liquid crystal grating module, comprise two substrates, at least be distributed with the two arrays of electrodes striped of arrangement interlaced with each other on one of them substrate, all even column electrode stripeds in one group of electrode striped are connected to first contact conductor, all odd column electrode stripeds are connected to second contact conductor, another group electrode striped all is connected to the third electrode lead-in wire, when carrying out the 3D demonstration, alternately go between and apply pulse voltage by described first contact conductor and third electrode lead-in wire and described second contact conductor and third electrode.
Further, the live width difference of described two arrays of electrodes striped.
Further, have the clearance for insulation of width between the adjacent electrode striped less than 10um.
The utility model also provides a kind of liquid crystal grating module, comprise two substrates, be distributed with many strip electrodes striped on one of them substrate, wherein all odd column electrode stripeds are connected to first contact conductor, all even column electrode stripeds are connected to second contact conductor, when carrying out the 3D demonstration, alternately apply pulse voltage by described first contact conductor and described second contact conductor.
Further, have the clearance for insulation of width between the adjacent electrode striped less than 10um.
The utility model also provides a kind of two-dimensional/three-dimensional switchable display, comprises that an image shows module, and described display also comprises aforesaid liquid crystal grating module.
Further, described image shows that module is the flat pannel display module, and described flat pannel display module is that liquid crystal display module, Organic Light Emitting Diode show module or Plasma Display module.
In the utility model, at least be distributed with the two arrays of electrodes striped of live width difference and arrangement interlaced with each other at the liquid crystal grating module, perhaps be distributed with many electrode stripeds that live width is identical, apply pulse voltage by electrode striped alternately to wherein corresponding columns, liquid crystal grating can switch between two kinds of show states, and disparity barrier staggers each other under two kinds of show states, because vision residual effect, left eye feels that the picture of seeing in the one-period all is the pixel of left-eye image, right eye feels that the picture of seeing in the one-period all is the pixel of eye image, realized that like this resolution does not reduce under the 3D show state, again because the improvements of technical solutions of the utility model are the arranging of electrode striped of transparent electrode layer on the liquid crystal grating, structure is very simple, no longer need to add extra polarizer, polarization switch, birefringent plate, devices such as viewing zone separator, thereby reduced cost, also made the integral thickness attenuation.
Description of drawings
Fig. 1 is basic binocular parallax schematic diagram;
Fig. 2 adopts the parallax baffle method to realize the schematic diagram that 3D shows;
Fig. 3 is the structural drawing of the two-dimensional/three-dimensional switchable display that provides of the utility model embodiment;
Fig. 4 is the design shape synoptic diagram of the electrode striped in the transparent electrode layer 16 shown in Figure 3;
Fig. 5 is the contact conductor in the transparent electrode layer 16 shown in Figure 3 and the design diagram that is connected of electrode striped;
Contact conductor design diagram in Fig. 6 transparent electrode layer 19 shown in Figure 3;
Fig. 7 and Fig. 8 are respectively the display patterns of the liquid crystal grating when applying pulse voltage between Fig. 5, contact conductor shown in Figure 6;
Fig. 9 is that the viewing area of the left eye (L) that provides of the utility model embodiment and right eye (R) exchanges synoptic diagram;
Figure 10 A and Figure 10 B are respectively the influence synoptic diagram of the bigger and less aperture opening ratio that provides of the utility model embodiment to visual range;
RL that Figure 11 the utility model embodiment provides and RL picture synthesis mode synoptic diagram;
Figure 12 is the images of left and right eyes picture effect figure that the 3D that provides of the utility model embodiment shows;
Figure 13 is the another kind of implementation synoptic diagram of electrode striped in the transparent electrode layer 16 that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Among the utility model embodiment, at least be distributed with the two arrays of electrodes striped of live width difference and arrangement interlaced with each other at the liquid crystal grating module, apply pulse voltage by electrode striped alternately to wherein corresponding columns, liquid crystal grating can switch between two kinds of show states, and disparity barrier staggers each other under two kinds of show states.
Fig. 3 shows the structure of the two-dimensional/three-dimensional switchable display that the utility model embodiment provides, and for convenience of description, only shows the part relevant with the utility model.
This two-dimensional/three-dimensional switchable displays comprises that image shows module, transmission-type liquid crystal grating module two parts, with reference to Fig. 3, image demonstration module is made up of module 1 backlight and display panels 2, display panels 2 comprises first polaroid 4, first glass substrate 5, be formed at the transparent electrode layer 6 and first both alignment layers 8 on first glass substrate 5 successively, second glass substrate 13, be formed at the colored filter 12 on second glass substrate 13 successively, the transparent electrode layer 11 and second both alignment layers 10, second polaroid 14, the bond frame adhesive 7 of first glass substrate 5 and second glass substrate 13 is filled in first glass substrate 5, liquid crystal 9 between the frame adhesive 7 and second glass substrate 13.Transmission-type liquid crystal grating module comprises the 3rd glass substrate 15, be formed at transparent electrode layer 16 and the 3rd both alignment layers 17 on the 3rd glass substrate 15 successively, the 4th glass substrate 20, be formed at transparent electrode layer 19 and the 4th both alignment layers 18 on the 4th glass substrate 20 successively, the 3rd polaroid 23, the bond frame adhesive 22 of the 3rd glass substrate 15 and the 4th glass substrate 20 is filled in the liquid crystal layer 21 between the 3rd glass substrate 15, the 4th glass substrate 20 and the frame adhesive 22.
Fig. 4 shows among Fig. 3 the design shape of electrode striped in the transparent electrode layer 16, different and the arrangement interlaced with each other of two arrays of electrodes striped live width, electrode striped a is identical with the c width among Fig. 4, b is identical with the d width and greater than the width of a and c, it is the following tiny insulation slit of 10um that preferable width is arranged between a, b, c, the d.Being connected of contact conductor in the transparent electrode layer 16 and electrode striped designs as shown in Figure 5, comprise 3 electrical leads 161,162 and 163 altogether, first contact conductor 161 has connected all even column electrode striped d, second contact conductor 163 has connected all odd column electrode striped b, and third electrode lead-in wire 162 has connected all electrode striped a and c.The contact conductor design of transparent electrode layer 19 only comprises a contact conductor as shown in Figure 6.
After with substrate 20 and substrate 15 applyings, the electrode shape of transparent electrode layer 16 and transparent electrode layer 19 intersection as shown in Figure 4.
When not applying voltage between transparent electrode layer 16 and the transparent electrode layer 19, liquid crystal grating 3 is a pellucidity, and display shows the 2D picture.
When applying high low pulse voltage between the contact conductor of contact conductor 162,163 and transparent electrode layer 19, the liquid crystal grating display pattern as shown in Figure 7.Because the slit between electrode striped a and b, b and the c is very little, display graphics is approximate can regard the strip disparity barrier as.When applying high low pulse voltage between contact conductor 161,162 and the transparent electrode layer 19, the liquid crystal grating display pattern as shown in Figure 8, display graphics is approximate can regard the strip disparity barrier as, and position and the strip disparity barrier shown in Figure 7 width that staggers is the live width sum of an electrode striped a and electrode striped b.At this moment, the viewing area of left eye (L) and right eye (R) exchanges, as shown in Figure 9.
By foregoing description as can be known, the difference of two arrays of electrodes striped live width can design according to concrete application scenarios, then aperture opening ratio is also bigger when live width differs big, 3D brightness is bigger, but range of observation is less, sees Figure 10 A, and this moment is because aperture opening ratio is bigger, when the observer be offset less apart from the time can see adjacent pixels, the right and left eyes image will interfere with each other like this.Hour then aperture opening ratio is also less when live width differs, 3D brightness is less, but range of observation is bigger, see Figure 10 B, this moment is because aperture opening ratio is less, when the observer is offset certain distance, see through the same pixel that slit is still seen, in bigger range of observation, can both see stereoeffect preferably.Do not consider the influence of BM (Black Mask, black ink layer), the upper limit of aperture opening ratio is 50%, when aperture opening ratio is designed to 25%, the live width of electrode striped a, c is identical with b, d, and is designed to less than 25% the time when aperture opening ratio, and the live width of electrode striped a, c will be bigger than b, d.
Embodiment of the invention 3D display driver process is as described below:
1, the stereo-picture that will be made up of original left-and right-eye images is to being treated to composograph 1 and composograph 2 by RL and two kinds of synthesis modes of LR, as shown in figure 11.
2, in turn between the contact conductor of contact conductor 162,163 and transparent electrode layer 19, between contact conductor 161,162 and transparent electrode layer 19, apply high low pulse voltage, according to above-mentioned principle, in the preceding half period of former demonstration one width of cloth picture, liquid crystal grating 3 shows picture shown in Figure 7, display shows composograph 1, left eye is seen whole L2 pixels, and right eye is seen whole R1 pixels, referring to Figure 12.
3, in the half period of back, liquid crystal grating 3 shows picture shown in Figure 8, and display shows composograph 2, and left eye is seen whole L1 pixels, and right eye is seen whole R2 pixels, referring to Figure 12.
During concrete enforcement, another kind of embodiment shown in Figure 13 can also be arranged, the design shape of electrode striped in the transparent electrode layer 16 in Fig. 3, all odd column electrode stripeds in many strip electrodes striped are connected to first contact conductor, and all even column electrode stripeds are connected to second contact conductor.When carrying out the 2D demonstration, when not applying voltage between transparent electrode layer 16 and the transparent electrode layer 19, liquid crystal grating 3 is a pellucidity.And when carrying out the 3D demonstration, alternately apply pulse voltage by described first contact conductor and described second contact conductor, making the position that forms two Alternation Display on liquid crystal grating stagger is a disparity barrier that the electrode strip streakline is wide.This embodiment can make the 3D demonstration have full resolution equally, and concrete principle repeats no more with above described, but because the aperture opening ratio of liquid crystal grating reaches 50%, and transmittance is also the highest, but range of observation is with minimum.
Be to be understood that, below only show that with regard to image module is that the situation of liquid crystal display module is described, during concrete enforcement, this image shows that module can also show module (OrganicLight-Emitting Diode for Organic Light Emitting Diode, OLED), (Plasma Display Panel, PDP) etc. flat pannel display module or other non-tablet show module to the Plasma Display module.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1, a kind of liquid crystal grating module, comprise two substrates, it is characterized in that, at least the two arrays of electrodes striped of arrangement interlaced with each other distributes on one of them substrate, all even column electrode stripeds in one group of electrode striped are connected to first contact conductor, all odd column electrode stripeds are connected to second contact conductor, another group electrode striped all is connected to the third electrode lead-in wire, when carrying out the 3D demonstration, alternately go between and apply pulse voltage by described first contact conductor and third electrode lead-in wire and described second contact conductor and third electrode.
2, liquid crystal grating module as claimed in claim 1 is characterized in that, the live width difference of described two arrays of electrodes striped.
3, liquid crystal grating module as claimed in claim 1 is characterized in that, has the clearance for insulation of width less than 10um between the adjacent electrode striped.
4, a kind of liquid crystal grating module, comprise two substrates, it is characterized in that, be distributed with many strip electrodes striped on one of them substrate, wherein all odd column electrode stripeds are connected to first contact conductor, all even column electrode stripeds are connected to second contact conductor, when carrying out the 3D demonstration, alternately apply pulse voltage by described first contact conductor and described second contact conductor.
5, liquid crystal grating module as claimed in claim 3 is characterized in that, has the clearance for insulation of width less than 10um between the adjacent electrode striped.
6, a kind of two-dimensional/three-dimensional switchable display comprises that an image shows module, is characterized in that described display also comprises as claim 1,2 or 3 described liquid crystal grating modules.
7, two-dimensional/three-dimensional switchable display as claimed in claim 6 is characterized in that, described image shows that module is the flat pannel display module.
8, two-dimensional/three-dimensional switchable display as claimed in claim 7 is characterized in that, described flat pannel display module is that liquid crystal display module, Organic Light Emitting Diode show module or Plasma Display module.
9, a kind of two-dimensional/three-dimensional switchable display comprises that an image shows module, is characterized in that described display also comprises as claim 4 or 5 described liquid crystal grating modules.
10, two-dimensional/three-dimensional switchable display as claimed in claim 9 is characterized in that, described image shows that module is the flat pannel display module; Described flat pannel display module is that liquid crystal display module, Organic Light Emitting Diode show module or Plasma Display module.
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| CN2009201323832U CN201425676Y (en) | 2009-06-05 | 2009-06-05 | Liquid crystal grating module, two dimension/three dimension switchable display |
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| CN2009201323832U CN201425676Y (en) | 2009-06-05 | 2009-06-05 | Liquid crystal grating module, two dimension/three dimension switchable display |
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| CN101957523A (en) * | 2010-05-26 | 2011-01-26 | 天马微电子股份有限公司 | Liquid crystal grating module and planar/three-dimensional switchable liquid crystal display device |
| CN102162958A (en) * | 2011-04-07 | 2011-08-24 | 昆山龙腾光电有限公司 | Stereoscopic display system |
| CN102208176A (en) * | 2011-05-18 | 2011-10-05 | 中兴通讯股份有限公司 | Three dimensional raster control device and system thereof |
| CN102223564A (en) * | 2011-07-13 | 2011-10-19 | 黑龙江省四维影像数码科技有限公司 | 2D/3D switchable and field-depth adjustable display module |
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| CN103852926A (en) * | 2014-03-28 | 2014-06-11 | 信利半导体有限公司 | Liquid crystal grating and manufacturing method thereof as well as display device |
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- 2009-06-05 CN CN2009201323832U patent/CN201425676Y/en not_active Expired - Lifetime
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| CN102436105B (en) * | 2011-10-20 | 2014-09-17 | 友达光电股份有限公司 | Liquid crystal display device and display driving method thereof |
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| CN109581779A (en) * | 2017-09-28 | 2019-04-05 | 京东方科技集团股份有限公司 | Liquid crystal grating and its driving method, display device |
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Granted publication date: 20100317 |