CN103926721A - Liquid crystal display panel and liquid crystal display panel - Google Patents
Liquid crystal display panel and liquid crystal display panel Download PDFInfo
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Abstract
An embodiment of the invention discloses a liquid crystal display panel which comprises a color film substrate and a TFT (thin film transistor) array substrate. The color film substrate comprises a red color resistor, a green color resistor and a blue color resistor, the TFT array substrate comprises a first pixel, a second pixel and a third pixel which correspond to the red color resistor, the green color resistor and the blue color resistor respectively, the first pixel comprises a first carved slit and at least two first strip-shaped electrodes, the second pixel comprises a second carved slit and at least two second strip-shaped electrodes, the third pixel comprises a third carved slit and at least two third strip-shaped electrodes, the first strip-shaped electrodes, the second strip-shaped electrodes and the third strip-shaped electrodes are all positioned in a first electrode layer, a ratio between width of each third strip-shaped electrode and that of the third carved slit is larger than that between width of each second strip-shaped electrode and that of the second carved slit, or a ratio between width of each third strip-shaped electrode and that of the third carved slit is larger than that between width of each first strip-shaped electrode and that of the first carved slit. Color offset of the liquid crystal display panel can be reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display panel and a liquid crystal display device.
Background
Currently, flat panel displays, such as Liquid Crystal Displays (LCDs), are dominant in the current flat panel Display market due to their features of small size, light weight, thin thickness, low power consumption, no radiation, etc.
However, in practical use, it is found that the liquid crystal display panel has a color shift problem, which causes a reduction in display quality of the liquid crystal display panel, and affects display effects.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a liquid crystal display panel and a liquid crystal display device.
An embodiment of the present invention provides a liquid crystal display panel, including: the TFT array substrate comprises a first pixel, a second pixel and a third pixel which respectively correspond to the red color resistor, the green color resistor and the blue color resistor, wherein the first pixel comprises a first notch and at least two first strip-shaped electrodes; the second pixel comprises a second notch and at least two second strip-shaped electrodes; a third pixel including a third slit and at least two third strip electrodes; the first strip-shaped electrode, the second strip-shaped electrode and the third strip-shaped electrode are all located on a first electrode layer, and the ratio of the width of the third strip-shaped electrode to the width of the third notch seam is larger than the ratio of the width of the second strip-shaped electrode to the width of the second notch seam, or the ratio of the width of the third strip-shaped electrode to the width of the third notch seam is larger than the ratio of the width of the first strip-shaped electrode to the width of the first notch seam.
Correspondingly, the embodiment of the invention also provides a liquid crystal display device which comprises the liquid crystal display panel.
The embodiment of the invention has one of the following advantages:
in the technical scheme provided by the invention, by setting the ratio of the width of the third strip-shaped electrode to the width of the third notch larger than the ratio of the width of the second strip-shaped electrode to the width of the second notch, the absolute value of the difference between the driving voltage corresponding to the third pixel (namely, the B pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the first pixel (namely, the R pixel) when obtaining the maximum light transmittance can be reduced; or setting the ratio of the width of the third strip-shaped electrode to the width of the third slit to be greater than the ratio of the width of the first strip-shaped electrode to the width of the first slit, so as to reduce the absolute value of the difference between the driving voltage corresponding to the third pixel (i.e. the B pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the second pixel (i.e. the G pixel) when obtaining the maximum light transmittance; that is, the liquid crystal display panel provided by the embodiment of the invention can simultaneously achieve the maximum light transmittance of the R pixel, the G pixel and the B pixel under the same driving voltage, thereby reducing or eliminating color cast, improving display quality, not increasing the complexity of a driving circuit of the liquid crystal display panel, simplifying the process and improving the production yield.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of driving voltage-transmittance curves of three RGB pixel units;
FIG. 2 is a schematic diagram of a curve c of the driving voltage-transmittance curve of the RGB three pixel units in FIG. 1 after translating to c' to the left;
fig. 3 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a liquid crystal display panel according to a first embodiment of the invention, in which the first, second and third stripe electrodes are in a single-chip structure;
fig. 5 is a schematic structural diagram of a liquid crystal display panel according to a second embodiment of the invention, in which the first stripe electrodes, the second stripe electrodes, and the third stripe electrodes are in a dual-layer structure;
fig. 6 is a schematic structural diagram of a liquid crystal display panel according to a third embodiment of the invention, in which the first stripe electrodes, the second stripe electrodes and the third stripe electrodes have a multi-stage structure;
fig. 7 is a schematic view of another structure of a liquid crystal display panel according to a third embodiment of the invention, in which the first stripe electrodes, the second stripe electrodes and the third stripe electrodes have a multi-stage structure;
fig. 8 is a top view of the first pixel, the second pixel and the third pixel in the lcd panel according to the embodiment of the invention;
fig. 9-11 are top views of three structures of the first pixel, the second pixel and the third pixel in a liquid crystal display panel according to a fourth embodiment of the invention;
fig. 12-14 are top views of three structures of the first pixel, the second pixel and the third pixel in a liquid crystal display panel according to a fifth embodiment of the invention;
fig. 15-17 are top views of three structures of the first pixel, the second pixel and the third pixel in a liquid crystal display panel according to a sixth embodiment of the invention;
fig. 18-20 are top views of three structures of the first pixel, the second pixel and the third pixel in the lcd panel according to the seventh embodiment of the present invention;
fig. 21-23 are top views of three structures of the first pixel, the second pixel and the third pixel in the lcd panel according to the eighth embodiment of the present invention;
FIGS. 24 to 25 are top views of two structures of a TFT array substrate in a liquid crystal display panel according to a first to an eighth embodiment of the present invention;
FIG. 26 is a schematic view of a liquid crystal display panel according to a ninth embodiment of the present invention;
FIG. 27 is a partial top view of the first electrode layer and the second electrode layer of the LCD panel structure of FIG. 26;
fig. 28 is a schematic structural diagram of a liquid crystal display panel according to a tenth embodiment of the invention.
Detailed Description
The inventors have found that, as shown in fig. 1, a VT (i.e. driving voltage-light transmittance) curve a of a first pixel (i.e. R pixel, corresponding to the red color resistance on the color filter substrate) substantially coincides with a VT (i.e. driving voltage-light transmittance) curve B of a second pixel (i.e. G pixel, corresponding to the green color resistance on the color filter substrate) (especially, under the same driving voltage, the curves a and B almost reach the peak at the same time, i.e. in other words, the peak of the curve a and the peak of the curve B are located on a straight line parallel to the y direction, and the peak of the curve a and the peak of the curve B almost coincide), whereas a VT (i.e. driving voltage-light transmittance) curve c of a third pixel (i.e. B pixel, corresponding to the blue color resistance on the color filter substrate) is located on the right side of the peak of the curve a and the peak of the curve B, therefore, when the liquid crystal display panel displays, under the same driving voltage, the maximum light transmittance of the three RGB pixels cannot be obtained at the same time, and the liquid crystal display panel generates color shift.
The inventor further researches and discovers that the color shift problem can be improved by providing different driving voltages for the three RGB pixels and further realizing that the three RGB pixels simultaneously obtain the maximum light transmittance, but the method greatly increases the complexity of a driving circuit of the liquid crystal display panel, so that the process is complex and the yield is reduced.
An embodiment of the present invention provides a liquid crystal display panel, including: the TFT array substrate comprises a first pixel, a second pixel and a third pixel which respectively correspond to the red color resistor, the green color resistor and the blue color resistor, wherein the first pixel comprises a first notch and at least two first strip-shaped electrodes; the second pixel comprises a second notch and at least two second strip-shaped electrodes; and the third pixel comprises a third notch and at least two third strip electrodes, the first strip electrode, the second strip electrode and the third strip electrode are all positioned on a first electrode layer, and the ratio of the width of the third strip electrode to the width of the third notch is greater than the ratio of the width of the second strip electrode to the width of the second notch, or the ratio of the width of the third strip electrode to the width of the third notch is greater than the ratio of the width of the first strip electrode to the width of the first notch.
The inventor further studies and finds that, as shown in fig. 2, when the ratio of the width of the third stripe electrode to the width of the third slit is increased, the VT (i.e., the driving voltage-light transmittance) curve of the third pixel (i.e., corresponding to the blue color resistance on the color filter substrate) can be shifted to the left to obtain a curve c ', so that the curve a, the curve b, and the curve c' are approximately coincident, and particularly, the peaks of the curve a, the curve b, and the curve c 'are substantially located on a straight line parallel to the y direction, that is, the curve a, the curve b, and the curve c' substantially reach the peaks at the same time under the same driving voltage (i.e., the maximum light transmittance is obtained by the three RGB pixels at the same time under the same driving voltage).
In the liquid crystal display panel provided in the embodiment of the invention, the absolute value of the difference between the driving voltage corresponding to the third pixel (i.e., the B pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the second pixel (i.e., the G pixel) when obtaining the maximum light transmittance can be reduced by making the ratio of the width of the third strip-shaped electrode to the width of the third slit larger than the ratio of the width of the second strip-shaped electrode to the width of the second slit, or the absolute value of the difference between the driving voltage corresponding to the third pixel (i.e., the B pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the first pixel (i.e., the R pixel) when obtaining the maximum light transmittance can be reduced by making the ratio of the width of the third strip-shaped electrode to the width of the third slit larger than the ratio of the width of the first strip-shaped electrode to the width of the first slit, so that the R pixel, the third slit, the second slit, and the third slit are arranged in, The G pixel and the B pixel simultaneously reach the maximum light transmittance, so that the color shift of the liquid crystal display panel can be reduced or eliminated, that is, the liquid crystal display panel provided by the embodiment of the invention increases the ratio of the width of the third strip electrode to the width of the third slit, so that the R pixel, the G pixel and the B pixel simultaneously reach the maximum light transmittance under the same driving voltage, thereby reducing or eliminating the color shift of the liquid crystal display panel, improving the display quality, not increasing the complexity of a liquid crystal display panel driving circuit, simplifying the process, and improving the production yield.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. The invention is therefore not limited to the specific implementations disclosed below.
As shown in fig. 3 and 4, an embodiment of the present invention provides a liquid crystal display panel, including: the color film substrate 1 and the TFT array substrate 2 are oppositely disposed, wherein the color film substrate 1 includes: red color resists 11, green color resists 12, and blue color resists 13, and the TFT array substrate 2 includes: the first pixel 21, the second pixel 22 and the third pixel 23, and the first pixel 21, the second pixel 22 and the third pixel 23 correspond to the red color filter 11, the green color filter 12 and the blue color filter 13, respectively.
The first pixel 21 includes at least two first stripe electrodes 211; the second pixel 22 includes at least two second stripe electrodes 221; the third pixel 23 includes at least two third strip electrodes 231. In the first embodiment of the present invention, the first stripe electrodes 211, the second stripe electrodes 221, and the third stripe electrodes 231 in the first pixels 21, the second pixels 22, and the third pixels 23 are all in a single-chip structure.
It should be noted that, in the liquid crystal display panel provided in the first embodiment of the present invention, the first bar-shaped electrode 211, the second bar-shaped electrode 221, and the third bar-shaped electrode 231 in the first pixel 21, the second pixel 22, and the third pixel 23 are in a single-chip structure, however, in other embodiments, the first bar-shaped electrode, the second bar-shaped electrode, and the third bar-shaped electrode may also be in a double-chip structure or a multi-chip structure, which is not limited in this respect.
In the second embodiment of the present invention, the same portions as those in the first embodiment of the present invention are not repeated, and are different from the first embodiment of the present invention in that: as shown in fig. 5, the first stripe electrodes 211, the second stripe electrodes 221, and the third stripe electrodes 231 in the first pixels 21, the second pixels 22, and the third pixels 23 are all of a double-chip structure.
In the third embodiment of the present invention, the same portions as those in the first embodiment of the present invention are not repeated, and are different from the first embodiment of the present invention in that: as shown in fig. 6 and 7, the first stripe electrodes 211, the second stripe electrodes 221, and the third stripe electrodes 231 in the first pixels 21, the second pixels 22, and the third pixels 23 are all of a multi-stage structure.
As shown in fig. 3 and 4, in the liquid crystal display panel according to the first embodiment of the invention, the first strip-shaped electrodes 211, the second strip-shaped electrodes 221, and the third strip-shaped electrodes 231 are all located on the first electrode layer 201, and a ratio w3/d3 of a width w3 of the third strip-shaped electrodes 231 to a width d3 of the third slits 232 is greater than a ratio w2/d2 of a width w2 of the second strip-shaped electrodes 221 to a width d2 of the second slits 222, or a ratio w3/d3 of a width w3 of the third strip-shaped electrodes 231 to a width d3 of the third slits 232 is greater than a ratio w1/d1 of a width w1 of the first strip-shaped electrodes 211 to a width d1 of the first slits 212.
As shown in fig. 8, in the fourth embodiment of the present invention, the same portions as those in the first embodiment of the present invention are not repeated, and are different from the first embodiment of the present invention in that: the first pixel 21 includes three first stripe electrodes 211, the second pixel 22 includes three second stripe electrodes 221, the third pixel 23 includes three third stripe electrodes 231, and the first stripe electrodes 211, the second stripe electrodes 221, and the third stripe electrodes 231 in the first pixel 21, the second pixel 22, and the third pixel 23 are all in a single-chip structure.
It should be noted that, in other embodiments of the present invention, the first pixel 21 may further include four first strip electrodes 211 or other numbers of first strip electrodes 211, and similarly, the second pixel 22 may also include four second strip electrodes 221 or other numbers of second strip electrodes 221, and the third pixel 23 may also include four third strip electrodes 231 or other numbers of third strip electrodes 231. Of course, the liquid crystal display panel provided by the embodiment of the invention is also applicable when the first stripe electrodes 211, the second stripe electrodes 221, and the third stripe electrodes 231 in the first pixels 21, the second pixels 22, and the third pixels 23 are all of a dual-stage structure and a multi-stage structure.
Specifically, in the fourth embodiment of the present invention, the ratio w3/d3 between the width w3 of the third stripe electrode 231 and the width d3 of the third slit 232 is greater than the ratio w2/d2 between the width w2 of the second stripe electrode 221 and the width d2 of the second slit 222, so as to reduce the absolute value of the difference between the driving voltage corresponding to the third pixel 23 (i.e. the B pixel) obtaining the maximum light transmittance and the driving voltage corresponding to the second pixel 22 (i.e. the G pixel) obtaining the maximum light transmittance, and further, the light transmittance of the third pixel 23 (i.e. the B pixel) reaches substantially the maximum value under the driving voltage corresponding to the second pixel 22 (i.e. the G pixel), and finally, the light transmittance of the R pixel, the G pixel and the B pixel reaches the maximum value at the same driving voltage, to reduce or eliminate color shift.
In another modification of the present embodiment, as shown in fig. 9, the width d2 of the second slit 222 is the same as the width d3 of the third slit 232, and the width w2 of the second stripe electrode 221 is smaller than the width w3 of the third stripe electrode 231, so that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222; in yet another variation of the present embodiment, as shown in fig. 10, the width w2 of the second stripe electrode 221 is the same as the width w3 of the third stripe electrode 231, and the width d2 of the second notch 222 is greater than the width d3 of the third notch 232, so that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third notch 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second notch 222; in a further modification of the embodiment, as shown in fig. 11, the width w2 of the second stripe electrode 221 is smaller than the width w3 of the third stripe electrode 231, and the width d2 of the second notch 222 is larger than the width d3 of the third notch 232, so that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third notch 232 is larger than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second notch 222, which is not limited in the present invention, as long as the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third notch 232 is larger than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d 2.
In the fifth embodiment of the present invention, as shown in fig. 12, a ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than a ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212, so as to reduce an absolute value of a difference between a driving voltage corresponding to the third pixel 23 (i.e., the B pixel) when obtaining the maximum light transmittance and a driving voltage corresponding to the first pixel 21 (i.e., the R pixel) when obtaining the maximum light transmittance, and further, the liquid crystal display panel provided in the embodiment of the present invention simultaneously achieves the maximum light transmittance of the R pixel, the G pixel, and the B pixel under the same driving voltage, so as to reduce color shift.
In another modification of the present embodiment, as shown in fig. 12, by setting the width d1 of the first slit 212 to be the same as the width d3 of the third slit 232, and setting the width w1 of the first strip-shaped electrode 211 to be smaller than the width w3 of the third strip-shaped electrode 231, the ratio w3/d3 of the width w3 of the third strip-shaped electrode 231 to the width d3 of the third slit 232 is greater than the ratio w1/d1 of the width w1 of the first strip-shaped electrode 211 to the width d1 of the first slit 212; in yet another variation of the embodiment, as shown in fig. 13, the width w1 of the first stripe-shaped electrode 211 is set to be the same as the width w3 of the third stripe-shaped electrode 231, and the width d1 of the first notch 212 is set to be greater than the width d3 of the third notch 232, so that the ratio w3/d3 of the width w3 of the third stripe-shaped electrode 231 to the width d3 of the third notch 232 is greater than the ratio w1/d1 of the width w1 of the first stripe-shaped electrode 211 to the width d1 of the first notch 212; in a further variation of the present embodiment, as shown in fig. 14, the width w1 of the first stripe-shaped electrode 211 is smaller than the width w3 of the third stripe-shaped electrode 231, and the width d1 of the first notch 212 is larger than the width d3 of the third notch 232, so that the ratio w3/d3 of the width w3 of the third stripe-shaped electrode 231 to the width d3 of the third notch 232 is larger than the ratio w1/d1 of the width w1 of the first stripe-shaped electrode 211 to the width d1 of the first notch 212. The embodiment of the invention does not limit this, as long as the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third notch 232 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first notch 212.
In the sixth embodiment of the present invention, as shown in fig. 15, the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is also greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212, so as to reduce the absolute value of the difference between the driving voltage corresponding to the third pixel 23 (i.e., the B pixel) when the maximum light transmittance and the driving voltage corresponding to the first pixel 21 (i.e., the R pixel) when the maximum light transmittance is obtained, and reduce the absolute value of the difference between the driving voltage corresponding to the third pixel 23 (i.e., the B pixel) when the maximum light transmittance and the second pixel 22 (i.e., the G pixel) when the maximum light transmittance is obtained, further, the liquid crystal display panel provided by the embodiment of the invention can simultaneously achieve the maximum light transmittance of the R pixel, the G pixel and the B pixel under the same driving voltage, so as to reduce or eliminate color cast.
It should be noted that, in a modification of the present embodiment, the widths w3 of the first strip-shaped electrode 211, the second strip-shaped electrode 221 and the third strip-shaped electrode 231 are the same, and the width d3 of the third notch 232 is smaller than the width d1 of the first notch 212 and smaller than the width d2 of the second notch 222, so that the ratio w3/d3 of the width w3 of the third strip-shaped electrode 231 to the width d3 of the third notch 232 is greater than the ratio w2/d2 of the width w2 of the second strip-shaped electrode 221 to the width d2 of the second notch 222, and the ratio w3/d3 of the width w3 of the third strip-shaped electrode 231 to the width d3 of the third notch 232 is greater than the ratio w1/d1 of the width w1 of the first strip-shaped electrode 211 to the width d1 of the first strip-shaped electrode 231; in another variation of the present embodiment, as shown in fig. 16, the widths d3 of the first slit 212, the second slit 222 and the third slit 232 are the same, the width w3 of the third stripe electrode 231 is greater than the width w1 of the first stripe electrode 211 and greater than the width w2 of the second stripe electrode 221, so that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first stripe electrode 211; in yet another variation of this embodiment, as shown in fig. 17, the third slit 232 width d3 is smaller than the first slit 212 width d1 and the second slit 222 width d2, and the third stripe electrode 231 width w3 is larger than the first stripe electrode 211 width w1 and the second stripe electrode 221 width w2, so that the ratio w3/d3 of the third stripe electrode 231 width w3 to the third slit 232 width d3 is larger than the ratio w2/d2 of the second stripe electrode 221 width w2 to the second slit 222 width d2, and the ratio w3/d3 of the third stripe electrode 231 width w3 to the third slit 232 width d3 is larger than the ratio w1/d1 of the first stripe electrode 211 width 1 to the first slit 212 width d 1. The present invention is not limited to this, and as the case may be, the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212.
In the seventh embodiment of the present invention, as shown in fig. 18, the ratio w2/d2 of the width w2 of the second stripe-shaped electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe-shaped electrode 211 to the width d1 of the first slit 212, so that the absolute value of the difference between the driving voltage corresponding to the second pixel 22 (i.e. the G pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the first pixel 21 (i.e. the R pixel) when obtaining the maximum light transmittance is obtained, and further, the liquid crystal display panel provided in the embodiment of the present invention achieves the maximum light transmittance of the R pixel and the G pixel at the same time under the same driving voltage, so as to reduce or eliminate the color shift.
It should be noted that, in a modification of the present embodiment, the second stripe-shaped electrode 221 and the first stripe-shaped electrode 211 have the same width w1, and the second slit 222 has a width d2 smaller than the first slit 212 has a width d1, so that the ratio w2/d2 of the width w2 of the second stripe-shaped electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe-shaped electrode 211 to the width d1 of the first slit 212; in yet another variation of the present embodiment, as shown in fig. 19, the width d2 of the second slit 222 is set to be the same as the width d1 of the first slit 212, and the width w2 of the second stripe electrode 221 is set to be greater than the width w1 of the first stripe electrode 211, so that the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212; in yet another variation of this embodiment, as shown in fig. 20, the width w2 of the second stripe-shaped electrode 221 is greater than the width w1 of the first stripe-shaped electrode 211, and the width d2 of the second slit 222 is smaller than the width d1 of the first slit 212, so that the ratio w2/d2 of the width w2 of the second stripe-shaped electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe-shaped electrode 211 to the width d1 of the first slit 212, which is not limited in this respect, as long as the ratio w2/d2 of the width w2 of the second stripe-shaped electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe-shaped electrode 211 to the width d 1.
In the eighth embodiment of the present invention, as shown in fig. 21, the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212, so as to reduce the absolute value of the difference between the driving voltage corresponding to the maximum light transmittance obtained by the third pixel 23 (i.e., the B pixel) and the driving voltage corresponding to the maximum light transmittance obtained by the second pixel 22 (i.e., the G pixel), and the absolute value of the difference between the driving voltage corresponding to the maximum light transmittance obtained by the first pixel 21 (i.e., the R pixel) when the second pixel 22 (i.e., the G pixel) obtains the maximum light transmittance, further, the liquid crystal display panel provided by the embodiment of the invention can simultaneously achieve the maximum light transmittance of the R pixel, the G pixel and the B pixel under the same driving voltage, so as to reduce or eliminate color cast.
It should be noted that, in a modification of the present embodiment, by setting the widths w3 of the first strip-shaped electrode 211, the second strip-shaped electrode 221 and the third strip-shaped electrode 231 to be the same, the width d1 of the first notch 212 is greater than the width d2 of the second notch 222, and the width d2 of the second notch 222 is greater than the width d3 of the third notch 232, a ratio w3/d3 of the width w3 of the third stripe-shaped electrode 231 to the width d3 of the third notch 232 is greater than a ratio w2/d2 of the width w2 of the second strip-shaped electrode 221 to the width d2 of the second notch 222, and a ratio w2/d2 of the width w2 of the second strip-shaped electrode 221 to the width d2 of the second notch 222 is greater than a ratio w1/d1 of the width w1 of the first strip-shaped electrode 211 to the width d1 of the first notch 212; in yet another variation of the present embodiment, as shown in fig. 22, the widths d3 of the first slit 212, the second slit 222 and the third slit 232 are set to be the same, the width w1 of the first stripe electrode 211 is smaller than the width w2 of the second stripe electrode 221, and the width w2 of the second stripe electrode 221 is smaller than the width w3 of the third stripe electrode 231, so that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w 2/2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d 1; in a further modification of the embodiment, as shown in fig. 23, the width w1 of the first stripe electrode 211 is smaller than the width w2 of the second stripe electrode 221, the width w2 of the second stripe electrode 221 is smaller than the width w3 of the third stripe electrode 231, the width d1 of the first slit 212 is larger than the width d2 of the second slit 222, the width d2 of the second slit 222 is larger than the width d3 of the third slit 232, so that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is larger than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 is larger than the ratio w 1/1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212. The present invention is not limited thereto, as long as it is ensured that the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, and the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212.
Preferably, in any of the above embodiments of the present invention, the widths w3 of the first stripe electrodes 211, the second stripe electrodes 221, and the third stripe electrodes 231 range from 2.0um to 4.0um, inclusive, and the widths d3 of the first slits 212, the second slits 222, and the third slits 232 range from 2.0um to 4.5um, inclusive.
More preferably, in an embodiment of the present invention, the width w1 of the first stripe-shaped electrode 211 is 2.4 μm, and the width d1 of the first slit 212 is 4.1 μm; the width w2 of the second stripe electrodes 221 is 2.5 μm, and the width d2 of the second slits 222 is 4.0 μm; the width w3 of the third stripe electrode 231 is 3.0 μm, and the width d3 of the third slit 232 is 3.2 μm, so that the driving voltage corresponding to the first pixel 21 (i.e., the R pixel) obtaining the maximum light transmittance, the driving voltage corresponding to the second pixel 22 (i.e., the G pixel) obtaining the maximum light transmittance, and the driving voltage corresponding to the third pixel 23 (i.e., the B pixel) obtaining the maximum light transmittance are close to the same value, and further, the liquid crystal display panel simultaneously achieves the maximum light transmittance of the R pixel, the G pixel, and the B pixel under the same driving voltage, so as to reduce or eliminate color cast.
In any of the above embodiments of the present invention, the light transmission areas of the first pixel 21, the second pixel 22, and the third pixel 23 are preferably equal.
Further, in any of the above embodiments, as shown in fig. 24, the TFT array substrate further includes a plurality of gate lines (G1-G4) and a plurality of data lines (D1-D3) intersecting each other, and the first, second, and third strip electrodes 211, 221, and 231 are parallel to each other, wherein the first, second, and third strip electrodes 211, 221, and 231 are parallel to the data lines, or, as shown in fig. 25, the first, second, and third strip electrodes 211, 221, and 231 are intersected with the gate lines (G1-G4) and the data lines (D1-D3), that is, the extension lines of the first, second, and third strip electrodes 211, 221, and 231 are intersected with the gate lines (D1-D3) and the data lines (D1-D3), it should be noted that in fig. 24 and 25, the number of the data lines and the gate lines are only by way of example and not limited, the invention is not limited thereto.
In addition, in the ninth embodiment of the present invention, the same portions as those in the first embodiment of the present invention are not repeated, and are different from the first embodiment of the present invention in that: as shown in fig. 26 and 27, the TFT array substrate further includes a second electrode layer 202, the second electrode layer 202 and the first electrode layer 201 are located in the same layer, and further, the second electrode layer 202 includes a fourth slit 2021 and a fourth strip electrode 2022.
As shown in fig. 3, the TFT array substrate further includes a second electrode layer 202 and a substrate 203, and the second electrode layer 202 is located between the first electrode layer 201 and the substrate 203. The second electrode layer 202 is a sheet electrode and fills the first pixel 21, the second pixel 22, and the third pixel 23; in the tenth embodiment of the present invention, as shown in fig. 28, the same portions as those of the liquid crystal display panel in fig. 3 are not repeated, and the liquid crystal display panel in fig. 3 is different in that: the second electrode layer 202 includes a fourth slit (not labeled) and a fourth stripe electrode 2022.
In the first to tenth embodiments, the first electrode layer 201 may be a pixel electrode layer or a common electrode layer, which is not limited in the embodiments of the present invention. For example, the first electrode layer 201 is a pixel electrode layer, and the second electrode layer 202 is a common electrode layer; alternatively, the second electrode layer 202 is a common electrode layer, and the second electrode layer 202 is a pixel electrode layer.
Accordingly, an embodiment of the present invention further provides a liquid crystal display device (not shown) including the liquid crystal display panel described above, wherein the liquid crystal display panel adopts any one of the first to tenth embodiments described above.
In summary, in the liquid crystal display panel provided by the embodiment of the invention, the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222, or the ratio w3/d3 of the width w3 of the third stripe electrode 231 to the width d3 of the third slit 232 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1 of the first slit 212, or the ratio w2/d2 of the width w2 of the second stripe electrode 221 to the width d2 of the second slit 222 is greater than the ratio w1/d1 of the width w1 of the first stripe electrode 211 to the width d1, so as to reduce the absolute light transmittance difference between the driving voltage corresponding to the maximum light transmittance of the third pixel 23 (i.e.e. the B pixel) and the absolute light transmittance of the first pixel 21 (i.e. the absolute light transmittance of the first pixel 21), or the absolute value of the difference between the driving voltage corresponding to the third pixel 23 (i.e., the B pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the second pixel 22 (i.e., the G pixel) when obtaining the maximum light transmittance is reduced, or the absolute value of the difference between the driving voltage corresponding to the second pixel 22 (i.e., the G pixel) when obtaining the maximum light transmittance and the driving voltage corresponding to the first pixel 21 (i.e., the R pixel) when obtaining the maximum light transmittance is reduced, so that the R pixel, the G pixel, and the B pixel simultaneously reach the maximum light transmittance under the same driving voltage, and the color shift is reduced or eliminated, thereby improving the display quality, and the complexity of the driving circuit of the liquid crystal display panel is not increased, simplifying the process, and improving the production yield.
In the description, each part is described in a progressive manner, each part is emphasized to be different from other parts, and the same and similar parts among the parts are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A liquid crystal display panel, comprising:
the color film substrate comprises a red color resistor, a green color resistor and a blue color resistor, the TFT array substrate comprises a first pixel, a second pixel and a third pixel which respectively correspond to the red color resistor, the green color resistor and the blue color resistor, wherein,
the first pixel comprises a first notch and at least two first strip-shaped electrodes;
the second pixel comprises a second notch and at least two second strip-shaped electrodes;
a third pixel including a third slit and at least two third strip electrodes;
the first strip-shaped electrode, the second strip-shaped electrode and the third strip-shaped electrode are all located on a first electrode layer, and the ratio of the width of the third strip-shaped electrode to the width of the third notch seam is larger than the ratio of the width of the second strip-shaped electrode to the width of the second notch seam, or the ratio of the width of the third strip-shaped electrode to the width of the third notch seam is larger than the ratio of the width of the first strip-shaped electrode to the width of the first notch seam.
2. The liquid crystal display panel according to claim 1, wherein the TFT array substrate further comprises a second electrode layer and a substrate, the second electrode layer being located between the first electrode layer and the substrate.
3. The liquid crystal display panel according to claim 1, further comprising a second electrode layer, the second electrode layer being in the same layer as the first electrode layer.
4. The liquid crystal display panel according to claim 2, wherein the second electrode layer is a sheet electrode and fills the first pixel, the second pixel, and the third pixel.
5. The liquid crystal display panel according to claim 2 or 3, wherein the second electrode layer comprises a fourth slit and a fourth strip electrode.
6. The liquid crystal display panel according to claim 2,
the first electrode layer is a pixel electrode layer, and the second electrode layer is a common electrode layer; or,
the first electrode layer is a common electrode layer, and the second electrode layer is a pixel electrode layer.
7. The liquid crystal display panel according to claim 1,
the width ranges of the first strip-shaped electrode, the second strip-shaped electrode and the third strip-shaped electrode are all 2.0-4.0 um, and the width ranges of the first notch, the second notch and the third notch are all 2.0-4.5 um.
8. The liquid crystal display panel according to claim 1,
the width of the second strip-shaped electrode is greater than that of the first strip-shaped electrode and less than that of the third strip-shaped electrode, or,
the second notch width is larger than the third notch width and smaller than the first notch width.
9. The liquid crystal display panel of claim 1, wherein the TFT array substrate further comprises a plurality of gate lines and a plurality of data lines intersecting each other, the first, second, and third stripe electrodes being parallel to each other,
the first strip-shaped electrode, the second strip-shaped electrode and the third strip-shaped electrode are all parallel to the data line, or,
the first strip-shaped electrode, the second strip-shaped electrode and the third strip-shaped electrode are all intersected with the gate line and the data line.
10. The liquid crystal display panel according to claim 1, wherein light transmission areas of the first pixel, the second pixel, and the third pixel are equal.
11. A liquid crystal display device comprising the liquid crystal display panel according to any one of claims 1 to 10.
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Application publication date: 20140716 |