CN103048836A - Thin film transistor (TFT) array substrate, liquid crystal display, driving method thereof and three-dimensional (3D) display system - Google Patents
Thin film transistor (TFT) array substrate, liquid crystal display, driving method thereof and three-dimensional (3D) display system Download PDFInfo
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- CN103048836A CN103048836A CN2012105307591A CN201210530759A CN103048836A CN 103048836 A CN103048836 A CN 103048836A CN 2012105307591 A CN2012105307591 A CN 2012105307591A CN 201210530759 A CN201210530759 A CN 201210530759A CN 103048836 A CN103048836 A CN 103048836A
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Abstract
The invention discloses a thin film transistor (TFT) array substrate, a liquid crystal display, a driving method thereof and a three-dimensional (3D) display system. An effective display pixel electrode and an active light blocking electrode are respectively arranged at an upper area and a lower area in each sub-pixel unit, and different grid electrode signal lines and data lines are used respectively for providing electric signals for the effective display pixel electrodes and the active light blocking electrodes. In a two-dimensional (2D) display mode, the areas where the active light blocking electrodes are located display images normally, and normal display cannot be influenced; in 3D display mode, the areas where the active light blocking electrodes are located form dark fields, and crosstalk light between adjacent pixels in the vertical direction can be reduced so as to improve a vertical visual angle of 3D display. In the 3D display mode, public electrode signals are exerted on the active light blocking electrodes, no voltage difference between the active light blocking electrodes and public electrodes is guaranteed when a TFT switch connected with the active light blocking electrodes leaks electricity, the phenomenon that brightening occur at the areas where the active light blocking electrodes are located is prevented, and the problem of crosstalk is avoided.
Description
Technical field
The present invention relates to 3D display technique field, relate in particular to a kind of tft array substrate, liquid crystal display, its driving method and 3D display system.
Background technology
People utilize two eyes to have the extraneous scenery of space multistory sense around observing in daily life, three-dimensional (3D) display technique utilizes the binocular stereo vision principle to make the people obtain the three dimensions sense exactly, its cardinal principle is to make beholder's left eye receive respectively different images from right eye, the position difference that is produced by the interpupillary distance between two of the beholders, make two sub-pictures that have " binocular parallax " consist of a pair of " stereopair ", and " stereo-picture to " make the beholder produce stereoscopic sensation after merging via the brain analysis.
At present, the 3D display technique has bore hole formula and spectacle two large classes.Wherein, spectacle is divided into shutter, polarization type and aberration formula etc.Show with shutter 3D and to compare, the picture flicker free of polarization type 3D, and with the supporting polaroid glasses cheaper of 3D display device and radiationless, more and more favored by the consumer.
When preparation polarization type 3D display device, as shown in Figure 1, need to attach in the bright dipping side of 3D display device one deck phase delay film (PR, Pattern Retarder), this phase delay film is consistent with corresponding pixel region, to guarantee to enter through the polarized light of phase delay the eyeglass of corresponding polaroid glasses.
Further, in order to improve polarization type 3D display device visual angle in vertical direction, as shown in Figure 2, generally can set up shield bars (BS) at the PR film and prevent crosstalking of right and left eyes light, but, arranging of BS can reduce the aperture opening ratio of 3D display device, and can produce Morie fringe when the 2D display mode, and impact normally shows.
Summary of the invention
The embodiment of the invention provides a kind of tft array substrate, liquid crystal display, its driving method and 3D display system, in order to be implemented in the situation that does not affect normal demonstration, improves the vertical direction visual angle that polarization type 3D shows.
A kind of thin film transistor (TFT) tft array substrate that the embodiment of the invention provides has a plurality of sub-pixs unit that is the matrix arrangement, comprising:
Up and down two zones in each described sub-pix unit have respectively effective display pixel electrode and the electrode that initiatively is in the light, described effective display pixel electrode and the described electrode mutually insulated that initiatively is in the light;
Between two row sub-pix unit of arbitrary neighborhood, have first grid signal wire and second grid signal wire; Described first grid signal wire is used for providing scanning gate signal to the effective display pixel electrode with these first grid signal wire adjacent lines, and described second grid signal wire is used for providing the gated sweep signal to the electrode that initiatively is in the light with these second grid signal wire adjacent lines;
Between two row sub-pix unit of arbitrary neighborhood, have the first data signal line and the second data signal line; Described the first data signal line is used for providing the GTG signal to the effective display pixel electrode with this first data signal line adjacent column, and described the second data signal line is used for providing the GTG signal to the electrode that initiatively is in the light with this second data signal line adjacent column.
A kind of liquid crystal display for the 3D demonstration that the embodiment of the invention provides, comprise: color membrane substrates, the thin film transistor (TFT) tft array substrate, liquid crystal layer between described color membrane substrates and described tft array substrate, and the phase delay film that is positioned at described color membrane substrates bright dipping side, the above-mentioned tft array substrate that described tft array substrate provides for the embodiment of the invention.
The driving method of a kind of embodiment of the invention that the embodiment of the invention provides provides the above-mentioned liquid crystal display that shows for 3D comprises:
When the 2D display mode, to same sub-pix unit in the first grid signal wire that connects of effective display pixel electrode apply identical scanning gate signal with the second grid sweep trace that is connected with the electrode that initiatively is in the light; To with same sub-pix unit in the first data signal line of connecting of effective display pixel electrode apply identical GTG signal with the second data scanning line that is connected with the electrode that initiatively is in the light;
When the 3D display mode, only the first grid signal wire that is connected with effective display pixel electrode is applied scanning gate signal, the first data signal line that is connected with effective display pixel electrode is applied the GTG signal; Every described second grid signal wire no signal input is to every described the second data signal line input common electrode signal.
A kind of 3D display system that the embodiment of the invention provides comprises: the above-mentioned liquid crystal display for the 3D demonstration that the embodiment of the invention provides, and polaroid glasses.
The beneficial effect of the embodiment of the invention comprises:
A kind of tft array substrate that the embodiment of the invention provides, liquid crystal display, its driving method and 3D display system, up and down two zones in each sub-pix unit are respectively arranged with effect display pixel electrode and the electrode that initiatively is in the light, between two row sub-pix unit of arbitrary neighborhood, have first grid signal wire and second grid signal wire, the first grid signal wire is used for providing scanning gate signal to the effective display pixel electrode with these first grid signal wire adjacent lines, and the second grid signal wire is used for providing the gated sweep signal to the electrode that initiatively is in the light with these second grid signal wire adjacent lines; Between two row sub-pix unit of arbitrary neighborhood, have the first data signal line and the second data signal line, the first data signal line is used for providing the GTG signal to the effective display pixel electrode with this first data signal line adjacent column, and the second data signal line is used for providing the GTG signal to the electrode that initiatively is in the light with this second data signal line adjacent column.When the 3D display mode, each electrode region of initiatively being in the light forms details in a play not acted out on stage, but told through dialogues, can reduce the Crosstalk between the neighbor on the vertical direction, the vertical angle of view that shows to improve 3D, and when the 2D display mode, each electrode region of initiatively being in the light normally shows image, can not affect normal demonstration.And, owing to adopt respectively different signal lines and data signal line to provide electric signal to the effective display pixel electrode in the same sub-pix unit and the electrode that initiatively is in the light, like this when the 3D display mode, just can utilize the second data-signal alignment that is connected with each electrode that initiatively the is in the light electrode that initiatively is in the light to apply common electrode signal, to guarantee when the electric leakage situation appears in the TFT switch that is connected with the electrode that initiatively is in the light, the no-voltage that initiatively is in the light between electrode and the public electrode is poor, prevent the phenomenon that occurs brightening in the electrode region of initiatively being in the light, thereby avoided cross-interference issue, improved the vertical angle of view that 3D shows.
Description of drawings
Fig. 1 and Fig. 2 are respectively the structural representation of existing polarization type 3D display device;
Fig. 3 a and Fig. 3 b are respectively tft array substrate that the embodiment of the invention provides at the structural representation of 2D display mode and 3D display mode;
Fig. 4 a and Fig. 4 b are respectively that the embodiment of the invention provides is used for liquid crystal display that 3D shows at the working timing figure of 2D display mode and 3D display mode.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of tft array substrate, liquid crystal display, its driving method and the 3D display system that the embodiment of the invention is provided is described in detail.
Each layer thickness and area size shape do not reflect the true ratio of tft array substrate in the accompanying drawing, and purpose is signal explanation content of the present invention just.
A kind of thin film transistor (TFT) tft array substrate that the embodiment of the invention provides shown in Fig. 3 a, has a plurality of sub-pixs unit that is the matrix arrangement, comprising:
Up and down two zones in each sub-pix unit have respectively effective display pixel electrode A and the electrode B that initiatively is in the light, effectively display pixel electrode A and the electrode B mutually insulated that initiatively is in the light;
Between two row sub-pix unit of arbitrary neighborhood, have first grid signal wire Gi and Gi+1 and second grid signal wire Gi_a and Gi+1_a; First grid signal wire Gi and Gi+1 are used for providing scanning gate signal to the effective display pixel electrode A with this first grid signal wire Gi and Gi+1 adjacent lines, and second grid signal wire Gi_a and Gi+1_a are used for providing the gated sweep signal to the electrode B that initiatively is in the light with this second grid signal wire Gi_a and Gi+1_a adjacent lines;
Between two row sub-pix unit of arbitrary neighborhood, have the first data signal line Di, Di+1, Di+2 and the second data signal line Di_a, Di+1_a, Di+2_a; The first data signal line Di, Di+1, Di+2 are used for providing the GTG signal to the effective display pixel electrode A with this first data signal line Di, Di+1, Di+2 adjacent column, and the second data signal line Di_a, Di+1_a, Di+2_a are used for providing the GTG signal to the electrode B that initiatively is in the light with this second data signal line Di_a, Di+1_a, Di+2_a adjacent column.
In the above-mentioned tft array substrate that the embodiment of the invention provides, up and down two zones in each sub-pix unit are respectively arranged with effect display pixel electrode and the electrode that initiatively is in the light, and adopt respectively different signal lines and data signal line to provide electric signal to the effective display pixel electrode in the same sub-pix unit and the electrode that initiatively is in the light.Like this, when the 2D display mode, each electrode region of initiatively being in the light normally shows image, can not affect normal demonstration, shown in Fig. 3 a; When the 3D display mode, shown in Fig. 3 b, just can utilize the data-signal alignment that is connected with each electrode that initiatively the is in the light electrode that initiatively is in the light to apply common electrode signal, to guarantee when the electric leakage situation appears in the TFT switch that is connected with the electrode that initiatively is in the light, the no-voltage that initiatively is in the light between electrode and the public electrode is poor, prevent the phenomenon that occurs brightening in the electrode region of initiatively being in the light, thereby avoided cross-interference issue.
In the specific implementation, the first data signal line and the second data signal line can be arranged with layer, like this, when the preparation tft array substrate, do not need to increase extra preparation section, only need to can form by a composition technique figure of the first data signal line and the second data signal line, can save preparation cost, the improving product added value.
In like manner, in the specific implementation, first grid signal wire and second grid signal wire can be arranged with layer, like this, when the preparation tft array substrate, do not need to increase extra preparation section, only need to can form by a composition technique figure of first grid signal wire and second grid signal wire, can save preparation cost, the improving product added value.
And, in the specific implementation, generally effective display pixel electrode and the electrode that initiatively is in the light are arranged with layer, like this, when the preparation tft array substrate, do not need to increase extra preparation section, only need to effective display pixel electrode can be formed and the figure of the electrode that initiatively is in the light by a composition technique, preparation cost can be saved, the improving product added value.
Particularly, when the design tft array substrate, in the open area of each sub-pix unit, the ratio of the electrode area occupied that initiatively is in the light generally between 5%-70%, in the specific implementation, can be set according to actual needs, does not do restriction at this.
Based on same inventive concept, the embodiment of the invention also provides a kind of liquid crystal display for the 3D demonstration, because the principle that this liquid crystal display is dealt with problems is similar to aforementioned a kind of tft array substrate, so the enforcement of this liquid crystal display can referring to the enforcement of tft array substrate, repeat part and repeat no more.
A kind of liquid crystal display for the 3D demonstration that the embodiment of the invention provides, specifically comprise: color membrane substrates, the thin film transistor (TFT) tft array substrate, liquid crystal layer between color membrane substrates and tft array substrate, and the phase delay film that is positioned at color membrane substrates bright dipping side, the above-mentioned tft array substrate that this tft array substrate provides for the embodiment of the invention, the principle of work of this liquid crystal display belongs to prior art, does not do detailed description at this.
Particularly, the above-mentioned liquid crystal display that the embodiment of the invention provides can be for such as senior super dimension field switch (ADS, Advanced Super Dimension Switch), plane conversion (IPS, In Plane Switching) or twisted-nematic (TN, Twisted Nematic) liquid crystal display of type is not done restriction at this.
The embodiment of the invention also provides a kind of driving method of the above-mentioned liquid crystal display that shows for 3D, specifically comprises:
When the 2D display mode, to same sub-pix unit in the first grid signal wire Gi that connects of effective display pixel electrode apply identical scanning gate signal with Gi+1 with the second grid sweep trace Gi_a that is connected with the electrode that initiatively is in the light and Gi+1_a; To with same sub-pix unit in effective display pixel electrode the first data signal line Di, Di+1, the Di+2 that connect and the second data scanning line Di_a, Di+1_a, the Di+2_a that is connected with the electrode that initiatively is in the light apply identical GTG signal, its working timing figure is shown in Fig. 4 a;
When the 3D display mode, only first grid signal wire Gi and the Gi+1 that is connected with effective display pixel electrode applied scanning gate signal, the first data signal line Di, Di+1, the Di+2 that is connected with effective display pixel electrode applied the GTG signal; Every described second grid signal wire Gi_a and the input of Gi+1_a no signal, to every described second data signal line Di_a, its working timing figure of Di+1_a, Di+2_a input common electrode signal shown in Fig. 4 b.Like this, when the electric leakage situation appears in the TFT switch that is connected with the electrode that initiatively is in the light, the no-voltage that initiatively is in the light between electrode and the public electrode is poor, prevent the phenomenon that occurs brightening in the electrode region of initiatively being in the light, when the 3D display mode, initiatively be in the light the electrode region always for details in a play not acted out on stage, but told through dialogues, thereby avoided cross-interference issue.
Based on same inventive concept, the embodiment of the invention also provides a kind of 3D display system, because the principle that this 3D display system is dealt with problems is similar to aforementioned a kind of liquid crystal display, so the enforcement of this 3D display system can referring to the enforcement of liquid crystal display, repeat part and repeat no more.
Particularly, a kind of 3D display system that the embodiment of the invention provides comprises: the above-mentioned liquid crystal display for the 3D demonstration that the embodiment of the invention provides, and polaroid glasses.
A kind of tft array substrate that the embodiment of the invention provides, liquid crystal display, its driving method and 3D display system, up and down two zones in each sub-pix unit are respectively arranged with effect display pixel electrode and the electrode that initiatively is in the light, between two row sub-pix unit of arbitrary neighborhood, have first grid signal wire and second grid signal wire, the first grid signal wire is used for providing scanning gate signal to the effective display pixel electrode with these first grid signal wire adjacent lines, and the second grid signal wire is used for providing the gated sweep signal to the electrode that initiatively is in the light with these second grid signal wire adjacent lines; Between two row sub-pix unit of arbitrary neighborhood, have the first data signal line and the second data signal line, the first data signal line is used for providing the GTG signal to the effective display pixel electrode with this first data signal line adjacent column, and the second data signal line is used for providing the GTG signal to the electrode that initiatively is in the light with this second data signal line adjacent column.When the 3D display mode, each electrode region of initiatively being in the light forms details in a play not acted out on stage, but told through dialogues, can reduce the Crosstalk between the neighbor on the vertical direction, the vertical angle of view that shows to improve 3D, and when the 2D display mode, each electrode region of initiatively being in the light normally shows image, can not affect normal demonstration.And, owing to adopt respectively different signal lines and data signal line to provide electric signal to the effective display pixel electrode in the same sub-pix unit and the electrode that initiatively is in the light, like this when the 3D display mode, just can utilize the second data-signal alignment that is connected with each electrode that initiatively the is in the light electrode that initiatively is in the light to apply common electrode signal, to guarantee when the electric leakage situation appears in the TFT switch that is connected with the electrode that initiatively is in the light, the no-voltage that initiatively is in the light between electrode and the public electrode is poor, prevent the phenomenon that occurs brightening in the electrode region of initiatively being in the light, thereby avoided cross-interference issue, improved the vertical angle of view that 3D shows.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. a thin film transistor (TFT) tft array substrate has a plurality of sub-pixs unit that is the matrix arrangement, it is characterized in that, comprising:
Up and down two zones in each described sub-pix unit have respectively effective display pixel electrode and the electrode that initiatively is in the light, described effective display pixel electrode and the described electrode mutually insulated that initiatively is in the light;
Between two row sub-pix unit of arbitrary neighborhood, have first grid signal wire and second grid signal wire; Described first grid signal wire is used for providing scanning gate signal to the effective display pixel electrode with these first grid signal wire adjacent lines, and described second grid signal wire is used for providing the gated sweep signal to the electrode that initiatively is in the light with these second grid signal wire adjacent lines;
Between two row sub-pix unit of arbitrary neighborhood, have the first data signal line and the second data signal line; Described the first data signal line is used for providing the GTG signal to the effective display pixel electrode with this first data signal line adjacent column, and described the second data signal line is used for providing the GTG signal to the electrode that initiatively is in the light with this second data signal line adjacent column.
2. tft array substrate as claimed in claim 1 is characterized in that, described the first data signal line and described the second data signal line arrange with layer.
3. tft array substrate as claimed in claim 1 is characterized in that, described first grid signal wire and described second grid signal wire arrange with layer.
4. tft array substrate as claimed in claim 1 is characterized in that, described effective display pixel electrode and the described electrode that initiatively is in the light arrange with layer.
5. such as each described tft array substrate of claim 1-4, it is characterized in that in the open area of each sub-pix unit, the ratio of the described electrode area occupied that initiatively is in the light is 5%-70%.
6. one kind is used for the liquid crystal display that 3D shows, comprise: color membrane substrates, the thin film transistor (TFT) tft array substrate, liquid crystal layer between described color membrane substrates and described tft array substrate, and the phase delay film that is positioned at described color membrane substrates bright dipping side, it is characterized in that described tft array substrate is such as each described tft array substrate of claim 1-5.
7. liquid crystal display as claimed in claim 6 is characterized in that, described liquid crystal display is twisted-nematic TN, plane conversion IPS or senior super dimension field switch ADS type liquid crystal display.
8. the driving method such as claim 6 or the 7 described liquid crystal displays that show for 3D is characterized in that, comprising:
When the 2D display mode, to same sub-pix unit in the first grid signal wire that connects of effective display pixel electrode apply identical scanning gate signal with the second grid sweep trace that is connected with the electrode that initiatively is in the light; To with same sub-pix unit in the first data signal line of connecting of effective display pixel electrode apply identical GTG signal with the second data scanning line that is connected with the electrode that initiatively is in the light;
When the 3D display mode, only the first grid signal wire that is connected with effective display pixel electrode is applied scanning gate signal, the first data signal line that is connected with effective display pixel electrode is applied the GTG signal; Every described second grid signal wire no signal input is to every described the second data signal line input common electrode signal.
9. a 3D display system is characterized in that, comprising: such as claim 6 or 7 described liquid crystal displays for the 3D demonstration, and polaroid glasses.
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