CN101126881A - LCD panel and pixels - Google Patents

Abstract

A liquid crystal display panel and a pixel are provided, the liquid crystal display panel includes an opposite substrate, an active element array substrate and a liquid crystal layer. The opposite substrate is provided with a common electrode, the active element array substrate is provided with a plurality of scanning lines, a plurality of data lines and a plurality of pixels, each pixel is controlled by the corresponding scanning line and the corresponding data line, and each pixel comprises an active element, a first pixel electrode, a dielectric layer and a second pixel electrode. The first pixel electrode is provided with a first slit and is electrically connected with the active element. The dielectric layer covers the first pixel electrode. The second pixel electrode is provided with a second slit and is arranged between the dielectric layer and the opposite substrate, the second pixel electrode is electrically connected with the first pixel electrode, the first slit and the second slit are substantially aligned with each other, and the width of the first slit is smaller than that of the second slit. The invention can achieve the effect of wide-viewing-angle display and improve the display quality.

Description

LCD panel and pixels

technical field

The invention relates to a display device, and in particular to a liquid crystal display panel.

Background technique

In recent years, the performance requirements for thin film transistor liquid crystal display (TFT-LCD) are towards high contrast ratio, no gray scale inversion, and little color shift. color shift), high brightness (high luminance), high color richness, high color saturation, fast response and wide viewing angle.

At present, the technologies that can meet the requirements of wide viewing angle include twisted nematic liquid crystal (TN) plus wide viewing film (wide viewing film), in-plane switching (IPS) LCD panel, fringe field switching (fringe field switching (FFS) liquid crystal display panel and multi-domain vertical alignment (multi-domain vertically aligned, MVA) liquid crystal display panel, etc.

For a multi-domain vertical alignment liquid crystal display panel, for example, a plurality of strip-shaped slits (slits) are formed on the pixel electrodes, and a plurality of strip-shaped protrusions (protrusions) are arranged on the opposite color filter array substrate. ), through the combination of the slit and the protrusion, the liquid crystal molecules in the liquid crystal layer are tilted in multiple directions, so as to achieve the effect of wide viewing angle display.

FIG. 1 is a partial cross-sectional view of a multi-domain vertical alignment liquid crystal display panel in the prior art. Please refer to FIG. 1 , the conventional multi-domain vertical alignment liquid crystal display panel 100 includes an active element array substrate 110 , an opposite substrate 120 and a liquid crystal layer 130 . The active element array substrate 110 has a plurality of pixels 140 arranged in an array on the substrate, and each pixel 140 has an active element 150 and a pixel electrode 160 electrically connected to the active element 150 . In addition, the opposite substrate 120 includes multiple sets of colored light films R, G, B and a common electrode 170 . The liquid crystal layer 130 is disposed between the active element array substrate 110 and the opposite substrate 120 .

As shown in FIG. 1 , in order to increase the viewing angle of the multi-domain vertical alignment liquid crystal display panel 100 , several strip-shaped slits 162 are usually formed in the pixel electrodes 160 , and a plurality of protrusions are arranged on the corresponding counter substrate 120 Object 172. In this way, through the electric field distribution between the strip-shaped slits 162 and the strip-shaped protrusions 172, the liquid crystal molecules in the liquid crystal layer 130 can be tilted in multiple directions, thereby increasing the viewing angle range of the multi-domain vertical alignment liquid crystal display panel 100. Effect.

In addition, regarding the response speed of the multi-domain vertical alignment liquid crystal display panel, Fujitsu Corporation described it in the information published by the Society For Information Display (SID, Society For Information Display) in 2001. The paper proposed that the multi-domain vertical alignment liquid crystal display panel Information about simulated brightness. The following will describe the pixels and simulated luminance of the multi-domain vertical alignment liquid crystal display panel proposed by Fujitsu.

FIG. 2A is a top view of some pixels of a multi-domain vertical alignment liquid crystal display panel in the prior art. As shown in FIG. 2A , the protrusions 172 are disposed above the corresponding pixel electrodes 160 , and FIG. 2B is the result of optical simulation of the bright state of FIG. 2A . As can be seen from FIG. 2B , there are obvious dark areas near the protrusions 172 located in the center and both sides of FIG. 2B , so that the overall brightness of the multi-domain vertical alignment liquid crystal display panel cannot be further improved.

In addition, the fabrication of the bumps 172 requires an additional photomask process, which increases the production cost and material cost. In addition, the liquid crystal molecules located around the protrusions 172 are easily affected by the protrusions 172 to fall and arrange, so that the multi-domain vertical alignment type liquid crystal display panel is prone to light leakage in the dark state, resulting in a decrease in contrast.

Contents of the invention

In view of this, the present invention proposes a liquid crystal display panel, which has a wide viewing angle display function and can improve contrast.

To specifically describe the content of the present invention, the present invention proposes a liquid crystal display panel, which includes an opposite substrate, an active element array substrate, and a liquid crystal layer. The opposite substrate has a common electrode, and the common electrode does not need to have an alignment pattern. The active element array substrate has a plurality of scanning lines, a plurality of data lines and a plurality of pixels, wherein each pixel is controlled by a corresponding scanning line and data line, and each pixel includes an active element, a first pixel electrode, an interlayer electrical layer and the second pixel electrode. The active elements are electrically connected with corresponding scan lines and data lines. The first pixel electrode has a first slit and is electrically connected with the active element. The dielectric layer covers the first pixel electrode. The second pixel electrode is disposed between the dielectric layer and the opposite substrate. The second pixel electrode has a second slit and is electrically connected to the first pixel electrode, wherein the first slit and the second slit are substantially opposite to each other. and the width of the first slit is smaller than the width of the second slit. The liquid crystal layer is disposed between the active element array substrate and the opposite substrate.

In an embodiment of the present invention, the dielectric layer of each pixel has an opening, and the second pixel electrode of each pixel is electrically connected to the first pixel electrode through the opening.

In an embodiment of the present invention, the second slits of each second pixel electrode include a main slit and a plurality of fine slits extending outward from the edge of the main slit. In addition, the extension directions of the micro slits of the second pixel electrodes are parallel to each other.

In an embodiment of the present invention, the second slits of each second pixel electrode include a main slit and a plurality of micro slits extending outward from the edge of the main slit. In addition, the extension directions of the micro slits of the second pixel electrodes are parallel to each other.

In an embodiment of the present invention, the extending direction of the first slit and the second slit of each pixel has an included angle with the extending direction of the scan line. In other embodiments, the extending direction of the first slits of each pixel is substantially parallel to the extending direction of the scan lines, and the extending direction of the second slits is substantially parallel to the extending direction of the data lines.

The present invention further provides a liquid crystal display panel, the liquid crystal display panel includes an opposite substrate, an active element array substrate and a liquid crystal layer. The opposite substrate has a common electrode, and the common electrode does not have an alignment pattern. The active element array substrate has a plurality of scanning lines, a plurality of data lines and a plurality of pixels, wherein each pixel is controlled by a corresponding scanning line and data line, and each pixel includes an active element, a first pixel electrode, a dielectric layer and the second pixel electrode. The active elements are electrically connected with corresponding scan lines and data lines. The first pixel electrode is electrically connected with the active element. The dielectric layer covers the first pixel electrode. The second pixel electrode is disposed between the dielectric layer and the opposite substrate, and the second pixel electrode is located on the dielectric layer within the range of the first pixel electrode, wherein the second pixel electrode has multiple groups of parallel slits. The liquid crystal layer is disposed between the active element array substrate and the opposite substrate.

In an embodiment of the present invention, when each pixel is driven, an oblique electric field is generated around the slit of the second pixel electrode.

In an embodiment of the present invention, the extending direction of the slit and the extending direction of the scanning lines have an included angle.

In an embodiment of the present invention, the dielectric layer of each pixel has an opening, and the second pixel electrode of each pixel is electrically connected to the first pixel electrode through the opening.

In an embodiment of the present invention, each pixel further includes a common wiring disposed under the first pixel electrode.

In an embodiment of the present invention, the first pixel electrode includes a transmissive electrode or a reflective electrode, and the second pixel electrode includes a transmissive electrode or a reflective electrode.

In an embodiment of the present invention, the materials of the first pixel electrode, the second pixel electrode and the common electrode include indium zinc oxide, indium tin oxide or other transparent conductive materials, wherein the first pixel electrode, the second pixel electrode and the The thickness of the common electrode is between 40 nm and 150 nm.

In an embodiment of the present invention, the materials of the first pixel electrode and the second pixel electrode include aluminum (Al), molybdenum (Mo), titanium (Ti) or metal materials.

In an embodiment of the invention, the material of the dielectric layer of each pixel includes silicon nitride.

In an embodiment of the invention, the thickness of the dielectric layer of each pixel is between 100 nm and 1000 nm.

In an embodiment of the present invention, the liquid crystal material in the liquid crystal layer includes nematic liquid crystal.

In an embodiment of the invention, the crystal-cavity spacing of the liquid crystal layer is between 250 nm and 400 nm.

The present invention proposes a pixel, which is arranged on a substrate and is suitable for being electrically connected to a scanning line and a data line on the substrate, and the pixel includes an active element, a first pixel electrode, a dielectric layer and a second pixel electrode. The active element is arranged on the substrate and is electrically connected with the scan line and the data line. The first pixel electrode has a first slit and is electrically connected with the active element. The dielectric layer covers the first pixel electrode, so that the first pixel electrode is located between the dielectric layer and the substrate. The second pixel electrode is disposed on the dielectric layer and is electrically connected to the first pixel electrode. The second pixel electrode has a second slit, wherein the first slit and the second slit are substantially aligned with each other, and the first slit is substantially aligned with each other. The width of the slit is smaller than the width of the second slit.

The present invention proposes another pixel, which is disposed on a substrate and is suitable for being electrically connected to a scan line and a data line on the substrate, and the pixel includes an active element, a first pixel electrode, a dielectric layer and a second pixel electrode. The active element is arranged on the substrate and is electrically connected with the scan line and the data line. The first pixel electrode is electrically connected with the active element. The dielectric layer covers the first pixel electrode, so that the first pixel electrode is located between the dielectric layer and the substrate. The second pixel electrode is disposed on the dielectric layer within the range of the first pixel electrode. The second pixel electrode has multiple sets of parallel slits and is electrically connected to the first pixel electrode.

Based on the above, the present invention can adjust the tilting direction of the liquid crystal molecules around each pixel electrode through the ingenious arrangement of the pixel electrodes in each pixel, and then match the magnitude of the input data voltage, so there is no need for the configuration of protrusions in the prior art , which can achieve the effect of wide viewing angle display. In addition, the number of domains of liquid crystal molecules above each pixel and the adjustment degree of color shift can be controlled through the number and shape of the second pixel electrode in each pixel, thereby improving display quality.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

FIG. 1 is a partial cross-sectional view of a multi-domain vertical alignment liquid crystal display panel in the prior art.

FIG. 2A is a top view of some pixels of a multi-domain vertical alignment liquid crystal display panel in the prior art.

FIG. 2B is a schematic diagram of an optical simulation of FIG. 2A in a bright state.

FIG. 3 is a partial schematic diagram of a liquid crystal display panel of the present invention.

FIG. 4 is a partial top view of the liquid crystal display panel of FIG. 3 .

FIG. 5 is an electric field distribution diagram along the section line A-A' of FIG. 4 when the pixel is driven.

FIG. 6A is a partial top view of a liquid crystal display panel of the present invention.

Fig. 6B is the result of optical simulation of the bright state of Fig. 6A.

FIG. 7A is a partial schematic diagram of a liquid crystal display panel of the present invention.

FIG. 7B is a cross-sectional view of the liquid crystal display panel corresponding to the section line B-B' in FIG. 7A.

FIG. 8 is a partial schematic diagram of another liquid crystal display panel of the present invention.

Wherein, the reference signs are explained as follows:

100, 200, 300: LCD panel

120, 210: opposite substrate

110, 220: active element array substrate

130, 230: liquid crystal layer

160: pixel electrode

170, 240: common electrode

162: Slit

172: Protrusions

140, 250, 350: Pixels

150, 252: active components

242: scan line

244: data line

254: Shared wiring

260, 360: the first pixel electrode

262, 362: the first slit

262D: Width of the first slit

270: dielectric layer

280, 380: the second pixel electrode

282, 382: the second slit

282m: main slit

282f: micro slit

282D: The width of the second slit

E: oblique electric field

H: open

M: metal layer

R, G, B: Color light film

θ ₁ , θ ₂ : Angle

Detailed ways

FIG. 3 is a partial schematic diagram of a liquid crystal display panel of the present invention. Referring to FIG. 3 , the liquid crystal display panel 200 includes an opposite substrate 210 , an active element array substrate 220 and a liquid crystal layer 230 . The opposite substrate 210 has a common electrode 240 , and the common electrode 240 does not need to have an alignment pattern, and the liquid crystal layer 230 is disposed between the active element array substrate 220 and the opposite substrate 210 . In addition, the active element array substrate 220 has a plurality of scan lines 242 (shown in FIG. 3 ), a plurality of data lines 244 and a plurality of pixels 250, and each pixel 250 is controlled by a corresponding scan line 242 and a data line 244. In this embodiment, only a few pixels 250 in the liquid crystal display panel 200 are shown for illustration.

FIG. 4 is a partial top view of the liquid crystal display panel in FIG. 3 , and only one pixel 250 is shown in FIG. 4 as an example for illustration. Please refer to FIG. 3 and FIG. 4 at the same time, the pixel 250 includes an active element 252 , a first pixel electrode 260 , a dielectric layer 270 and a second pixel electrode 280 . The active elements 252 are electrically connected to the corresponding scan lines 242 and data lines 244 . The first pixel electrode 260 has a first slit 262 and is electrically connected to the active element 252 . The dielectric layer 270 covers the first pixel electrode 260 . The second pixel electrode 280 has a second slit 282 and is disposed between the dielectric layer 270 and the opposite substrate 210 . The second pixel electrode 280 is electrically connected to the first pixel electrode 260 . In this embodiment, the second pixel electrode 280 is electrically connected to the first pixel electrode 260 through the opening H of the dielectric layer 270 , for example. In addition, as shown in FIG. 4 , the pixel 250 also includes a common wiring 254 disposed below the first pixel electrode 260, and the common wiring 254 and the first pixel electrode 260 form a storage capacitor, which is well known to those skilled in the art. , so it will not be repeated here.

Please continue to refer to FIG. 4 , the first slit 262 and the second slit 282 are substantially aligned with each other, and the width 262D of the first slit 262 is smaller than the width 282D of the second slit 282 . Certainly, the line width (line width) and the alignment (alignment) degree of the first slit 262 and the second slit 282 will usually be slightly changed due to the influence of process variation, but this part is slightly changed due to process variation. , should still fall within the scope of the present invention. As shown in FIG. 4 , the second slit 282 of the second pixel electrode 280 includes a main slit 282m and a plurality of micro slits 282f extending outward from the edge of the main slit 282m, and the micro slits of the second pixel electrode 280 The extending directions of the slits 282f are parallel to each other.

It is worth noting that, unlike the prior art which uses protrusions 172 (shown in FIG. 1 ) to make the liquid crystal layer exhibit several different tilting directions, the present invention utilizes the first slit 262 of the first pixel electrode 260 and the The disposition relation between the second slits 282 of the second pixel electrode 280 achieves the effect of displaying with a wide viewing angle. In detail, FIG. 5 is an electric field distribution diagram along the section line A-A' of FIG. 4 when the pixel is driven. Referring to FIG. 5, when the pixel 250 is driven, an oblique electric field E will be generated around the first slit 262 and the second slit 282, so that the upper corresponding liquid crystal layer 230 is divided into several alignment domains, and the The liquid crystal molecules fall along the direction of the oblique electric field E, so that the liquid crystal display panel 200 exhibits the effect of wide viewing angle. Therefore, the present invention does not need to additionally use a wide viewing angle film or make protrusions, which can reduce production costs and material costs.

To specifically illustrate the display effect of the liquid crystal display panel of the present invention, FIG. 6A is a partial top view of a liquid crystal display panel of the present invention, and FIG. 6B is the optical simulation result of the bright state of FIG. 6A. Please refer to FIG. 6A first, the first slit 262 of the first pixel electrode 260 and the second slit 282 of the second pixel electrode 280 are substantially aligned with each other, and the width 262D of the first slit 262 is smaller than the second slit 282 The width is 282D. Next, please refer to FIG. 6B , the bright-state optical simulation brightness of the liquid crystal display panel of the present invention is significantly improved compared with the bright-state optical simulation brightness of the prior art (shown in FIG. 2B ).

In order to further improve the display quality of the liquid crystal display, the designer can adjust the quantity, position, shape and arrangement position of the first slit 262 and the second slit 282 according to the color shift adjustment requirement. For example, in FIG. 4 , the angle between the extending direction of the first slit 262 and the second slit 282 and the extending direction of the scanning line 242 is θ ₁ , at this time, the corresponding liquid crystal layer 230 above the pixel 250 is at an angle θ ₁ It is poured along the first slit 262 and the second slit 282, and generally divides a plurality of alignment domains with an angle θ ₁ with the scanning line 242. Of course, the extending direction of the first slit 262 can also be substantially parallel to the extending direction of the scanning line 242, and the extending direction of the second slit 282 is substantially parallel to the extending direction of the data line 244, as shown in FIG. 7A, here When , several alignment regions of the liquid crystal layer 230 above the pixels 250 are substantially parallel to the extending directions of the scan lines 242 and the data lines 244 . In this embodiment, the liquid crystal material in the liquid crystal layer 230 is an example of nematic liquid crystal, and the crystal-cavity distance of the liquid crystal layer 230 is, for example, between 250 nm and 400 nm. Certainly, the liquid crystal material may also be other types of liquid crystals.

In fact, FIG. 7B is a cross-sectional view of the liquid crystal display panel corresponding to the section line B-B' in FIG. 7A. Please refer to FIG. 7B , the second pixel electrode 280 of the present invention is electrically connected to the first pixel electrode 260 through the opening H of the dielectric layer 270, for example, in the metal active element 252 (shown in FIG. 7A ). After layer M is formed, for example as a drain metal layer, a first pixel electrode 260 is formed on the metal layer M of a part of the active element 252 (shown in FIG. 7A ), so that the first pixel electrode 260 is electrically connected to the active element 252 . Next, a dielectric layer 270 having an opening H is formed. Next, the second pixel electrode 280 is formed. In this way, when the pixel 250 is driven, the first pixel electrode 260 and the second pixel electrode 280 will have the same potential, and an oblique electric field E can be formed around the first slit 262 and the second slit 282 (shown in FIG. 5) Make the corresponding liquid crystal layer 230 present several different alignment domains, so as to increase the viewing angle range of the liquid crystal display panel.

It should be noted that the strength of the oblique electric field E will be the key to accelerating the response speed of the liquid crystal display panel. In the present invention, the designer can adjust the width of the first slit 262, the width of the second slit 282, the thickness of the dielectric layer 270, and the dielectric coefficient of the dielectric layer 270 according to the characteristics of the liquid crystal material, thereby controlling The intensity of the oblique electric field E is used to increase the response speed of the liquid crystal display panel. In detail, when the oblique electric field E is strong, the liquid crystal molecules near the first slit 262 and the second slit 282 can fall relatively quickly, and the liquid crystal molecules above the second pixel electrode 280 will be affected by the surrounding liquid crystal molecules. The promotion of the liquid crystal molecules quickly forms a multi-domain arrangement. Therefore, this design is of great benefit to improving the response speed of the liquid crystal display panel.

Please continue to refer to FIG. 7B , the first pixel electrode 260 may be a transmissive electrode or a reflective electrode, and the second pixel electrode 280 may also be a transmissive electrode or a reflective electrode. Generally speaking, when the liquid crystal display panel 200 is a transmissive liquid crystal display panel 200, the material of the first pixel electrode 260 and the second pixel electrode 280 can be indium tin oxide (Indium Tin Oxide, ITO), indium zinc oxide (Indium Zinc Oxide, IZO) and other transparent conductive materials, and the thicknesses of the first pixel electrode 260, the second pixel electrode 280 and the common electrode 240 are, for example, between 40 nanometers and 150 nanometers. Certainly, if the liquid crystal display panel 200 is a reflective liquid crystal display, the material of the first pixel electrode 260 and the second pixel electrode 280 may be aluminum, molybdenum, titanium or other metal materials. In addition, in this embodiment, the material of the dielectric layer 270 is, for example, silicon nitride, and the thickness of the dielectric layer 270 is, for example, between 100 nanometers and 1000 nanometers.

FIG. 8 is a partial schematic diagram of another liquid crystal display panel of the present invention, and only the pixel 350 is shown in FIG. 8 as an example for illustration. Referring to FIG. 8 , the liquid crystal display panel 300 is similar to the liquid crystal display panel 200 of the first embodiment, but the difference lies in the shapes and stacking methods of the first pixel electrodes 360 and the second pixel electrodes 380 in the pixels 350 . The pixel 350 in this embodiment includes an active element 252 , a first pixel electrode 360 , a dielectric layer (not shown) and a second pixel electrode 380 . The second pixel electrode 380 is located on a dielectric layer (not shown) within the range of the first pixel electrode 360 , wherein the second pixel electrode 380 has a plurality of sets of parallel slits 382 . In addition, in this embodiment, the second pixel electrode 380 is electrically connected to the first pixel electrode 360 through the opening H of the dielectric layer (not shown), for example.

As shown in FIG. 8 , the angle between the extending direction of the slit of the second pixel electrode 380 and the extending direction of the scanning line 242 is θ ₂ . When each pixel 250 is driven, the slit 382 located on the second pixel electrode 380 roughly divides the corresponding liquid crystal layer into a plurality of alignment areas having an angle of _θ2 with the scan line 242 to achieve a wide viewing angle display effect. Of course, the designer can adjust the size of θ ₂ according to the design requirements, and details will not be repeated here.

Based on the above, the present invention proposes a wide viewing angle technology different from the prior art multi-domain vertical alignment liquid crystal display, which can improve brightness and contrast and has a faster response speed. And while improving the viewing angle, no additional wide viewing angle film or configuration of protrusions is required, thereby reducing costs.

Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make certain changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of the appended claims.

Claims (25)

1. display panels comprises:

Active elements array substrates has multi-strip scanning line, many data lines and a plurality of pixel, and wherein each pixel is controlled by the described sweep trace and the data line of correspondence, and each pixel comprises:

Active component is with corresponding described sweep trace and data line electric connection;

First pixel electrode has first slit, and this first pixel electrode and this active component electrically connect;

Dielectric layer covers this first pixel electrode;

Second pixel electrode, be disposed between this dielectric layer and this subtend substrate, and electrically connect with this first pixel electrode, this second pixel electrode has second slit, wherein this first slit and this second slit are aligned with each other in fact, and the width of this first slit is less than the width of this second slit;

The subtend substrate has common electrode; And

Liquid crystal layer is disposed between this active elements array substrates and this subtend substrate.

2. display panels as claimed in claim 1, wherein respectively the dielectric layer of this pixel has opening, and respectively second pixel electrode of this pixel electrically connects by this opening and this first pixel electrode.

3. display panels as claimed in claim 1, wherein respectively second slit of this second pixel electrode comprises main slit and a plurality of from this outward extending little slit in main slit edge.

4. display panels as claimed in claim 3, wherein respectively the bearing of trend of described a plurality of little slits of this second pixel electrode is parallel each other.

5. display panels as claimed in claim 1, wherein respectively this pixel also comprises: shared distribution is disposed at this first pixel electrode below.

6. display panels as claimed in claim 1 when wherein respectively this pixel is driven, produces oblique electric field around this first slit and this second slit.

7. display panels as claimed in claim 1, wherein respectively the bearing of trend of first slit of this pixel and second slit and the bearing of trend of this sweep trace have angle.

8. display panels as claimed in claim 1, wherein respectively the bearing of trend of this first slit of this pixel is parallel to the bearing of trend of this sweep trace in fact, and the bearing of trend of this second slit is parallel to the bearing of trend of this data line in fact.

9. display panels as claimed in claim 1, wherein said a plurality of first pixel electrodes comprise penetration electrode or reflective electrode, and described a plurality of second pixel electrode comprises penetration electrode or reflective electrode.

10. display panels as claimed in claim 1, the material of wherein said a plurality of first pixel electrodes, described a plurality of second pixel electrodes and this common electrode comprises indium-zinc oxide, indium tin oxide or other transparent conductive materials.

11. display panels as claimed in claim 10, the thickness of wherein said a plurality of first pixel electrodes, described a plurality of second pixel electrodes and this common electrode is between 40 nanometer to 150 nanometers.

12. display panels as claimed in claim 1, the material of wherein said a plurality of first pixel electrodes and described a plurality of second pixel electrodes comprises aluminium, molybdenum, titanium or metal material.

13. display panels as claimed in claim 1, wherein respectively the material of the dielectric layer of this pixel comprises silicon nitride.

14. display panels as claimed in claim 1, wherein respectively the thickness of the dielectric layer of this pixel between 100 nanometer to 1000 nanometers.

15. display panels as claimed in claim 1, wherein the liquid crystal material in this liquid crystal layer comprises nematic crystal.

16. display panels as claimed in claim 1, wherein the bug hole spacing of this liquid crystal layer is between 250 nanometer to 400 nanometers.

17. a display panels comprises:

Active elements array substrates has multi-strip scanning line, many data lines and a plurality of pixel, and wherein each pixel is controlled by the described sweep trace and the data line of correspondence, and each pixel comprises:

Active component is with corresponding described sweep trace and data line electric connection;

First pixel electrode electrically connects with this active component;

Dielectric layer covers this first pixel electrode;

Second pixel electrode is disposed between this dielectric layer and this subtend substrate, and this second pixel electrode is positioned on the dielectric layer of this first pixel electrode scope the slits that group was parallel to each other more than wherein this second pixel electrode had;

The subtend substrate has common electrode; And

Liquid crystal layer is disposed between this active elements array substrates and this subtend substrate.

18. display panels as claimed in claim 17, wherein respectively the dielectric layer of this pixel has opening, and this second pixel electrode electrically connects by this opening and this first pixel electrode.

19. display panels as claimed in claim 17, wherein respectively this pixel also comprises: shared distribution is disposed at this first pixel electrode below.

20. display panels as claimed in claim 17 when wherein respectively this pixel is driven, produces oblique electric field around described a plurality of slits of this second pixel electrode.

21. display panels as claimed in claim 17, the bearing of trend of wherein said a plurality of slits and the bearing of trend of this sweep trace have angle.

22. display panels as claimed in claim 17, wherein said a plurality of first pixel electrodes comprise penetration electrode or reflective electrode, and described a plurality of second pixel electrode comprises penetration electrode or reflective electrode.

23. display panels as claimed in claim 17, the material of wherein said a plurality of first pixel electrodes, described a plurality of second pixel electrodes and this common electrode comprises indium-zinc oxide, indium tin oxide or other transparent conductive materials.

24. a pixel is disposed on the substrate, this pixel be suitable for this substrate on sweep trace and data line electrically connect, and this pixel comprises:

Active component is disposed on this substrate, and electrically connects with this sweep trace and this data line;

First pixel electrode has first slit, and this first pixel electrode and this active component electrically connect;

Dielectric layer covers this first pixel electrode, so that this first pixel electrode is between this dielectric layer and this substrate; And

Second pixel electrode, be disposed on this dielectric layer, and electrically connect with this first pixel electrode, this second pixel electrode has second slit, wherein this first slit and this second slit are aligned with each other in fact, and the width of this first slit is less than the width of this second slit.

25. a pixel is disposed on the substrate, this pixel be suitable for this substrate on sweep trace and data line electrically connect, and this pixel comprises:

Active component is disposed on this substrate, and electrically connects with this sweep trace and this data line;

First pixel electrode electrically connects with this active component;

Dielectric layer covers this first pixel electrode, so that this first pixel electrode is between this dielectric layer and this substrate; And

Second pixel electrode is disposed on this dielectric layer in this first pixel electrode scope, and this second pixel electrode has the slit that many groups are parallel to each other, and electrically connects with this first pixel electrode.

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