JPH09203894A - Liquid crystal display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal display panel which substantially prevents the generation of air bubbles in the joint parts of optically anisotropic films and deflection plates of the liquid crystal display panel having these optically anisotropic films. SOLUTION: The rubbing directions of oriented films 2, 6 in a region bisecting one pixel are reversed from each other. The optically anisotropic films 8, 10 are respectively arranged on the rear surface side of a lower substrate 1 and the front surface side of an upper substrate 3. The deflection plates 9, 11 are respectively joined to the optically anisotropic films 8, 10. The optically anisotropic films 8, 10 are so formed that their respective delay phase axes are kept within 0±10 deg. with the rubbing directions of the oriented films 2, 6. The optically anisotropic films 8, 10 having retardation (Δand value) of 50 to 250nm are used. The deflection plates 9, 11 are so arranged that their absorption axes are paralleled with each other.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a liquid crystal display panel provided with an optically anisotropic film (retardation film).

[0002]

2. Description of the Related Art Liquid crystal display panels are advantageous in that they are thin and lightweight, can be driven at a low voltage, and consume little power, and are widely used in various electronic devices. In particular, in recent years, an active matrix type liquid crystal display panel in which an active element such as a TFT (Thin Film Transistor) is provided for each pixel is a CRT (cathode-ray tube) in view of display quality.
e) is as good as it gets,
It is also used for displays such as portable televisions and personal computers.

Generally, a liquid crystal display panel has a structure in which a liquid crystal is sandwiched between two transparent substrates. Of the two surfaces (opposite surfaces) of the transparent substrates, which face each other, a counter electrode and an alignment film are formed on one surface side, and an active matrix circuit, pixel electrodes and an alignment film are formed on the other surface side. A film or the like is formed. Further, a polarizing plate is attached to a surface of each transparent substrate opposite to the opposite surface. These two polarizing plates are arranged, for example, so that the absorption axes (directions perpendicular to the deflection direction) of the polarizing plates are orthogonal to each other, and according to this, light is transmitted when no electric field is applied, and In the state in which is applied, the mode is a light-shielding mode, that is, a normally white mode. On the contrary, 2
When the absorption axes of the deflecting plates are parallel, the normally black mode is set.

By the way, the liquid crystal display panel of the active matrix type generally has a drawback that the viewing angle characteristic is worse than that of the CRT, that is, the contrast changes depending on the viewing angle of the screen. To improve this,
There has been proposed a liquid crystal display panel having an alignment division structure in which one pixel is divided into two regions and the alignment directions of liquid crystal molecules in each region are different from each other.

FIG. 9 is a plan view showing a conventional liquid crystal display panel of this type, and FIG. 10 is a sectional view taken along line YY of FIG. The glass substrates 31 and 33 are arranged so as to face each other. A plurality of pixel electrodes 42 are arranged in a matrix on the lower substrate 31, and gate bus lines 43 and data bus lines 44 are formed between the pixel electrodes 42 so as to intersect each other at a right angle. . Further, a TFT 45 is arranged near the intersection of the gate bus line 43 and the data bus line 44. An alignment film 32 is formed on the substrate 31 so as to cover the pixel electrodes 42, the gate bus lines 43, the TFTs 45, and the like.

A color filter 34 is formed on the lower surface side of the upper substrate 33. The color filter 34 has any color of red (R), blue (B) or green (G) for each pixel. A counter electrode 35 is provided below the color filter 34.
An alignment film 36 is provided under 5. Alignment film 32,
36 is made of polyimide, for example, and is subjected to a so-called rubbing treatment in which the surface is rubbed with a roll to which cloth such as rayon is attached. The molecules of the liquid crystal have an alignment film 32,
It has the property of being oriented along the rubbing direction of 36. In a TN (Twisted Nematic) type liquid crystal display panel, two alignment films 32 and 36 are arranged such that their rubbing directions are substantially orthogonal to each other when viewed from above.

The substrates 31 and 33 are arranged with a spherical spacer (not shown) for keeping the space between them constant, and a liquid crystal 37 is sealed between the substrates 31 and 33.
Polarizing plates 39 and 41 are provided below the substrate 31 and above the substrate 33, respectively. FIG.
11A and 11B are diagrams schematically showing molecules of liquid crystal between the substrates 31 and 33. FIG. 11A shows a state in which no voltage is applied between the electrodes, and FIG. 11B shows A state where a voltage is applied is shown. However, in reality, the arrangement direction of the liquid crystal molecules 48 is twisted by 90 ° between the pixel electrode side and the counter electrode side, but in FIG. 11, the liquid crystal molecules 48 are twisted for easier understanding.
Is not twisted.

As shown in FIG. 11A, liquid crystal molecules 48
Is aligned according to the rubbing direction of the alignment films 32 and 36,
Tilt at an angle θ. The angle θ is called a pretilt angle and differs depending on the constituent material of the alignment film. In a TN type liquid crystal display panel in which polarizing plates are arranged orthogonally, two alignment films 3
The liquid crystal molecules 48 between 2 and 36 change the orientation direction in a spiral manner from one transparent substrate 31 toward the other transparent substrate 33. Then, the pixel electrode 42 and the counter electrode 35
When the voltage between and is gradually increased, the liquid crystal molecules 48 start to rise in the direction of the electric field at a certain voltage (threshold value), and when a sufficient voltage is applied, as shown in FIG. , The liquid crystal molecules 48 are almost perpendicular to the substrates 31 and 33. That is, the liquid crystal molecules 48 change from a state almost parallel to the substrates 31 and 33 to a state almost vertical to the substrates 31 and 33, and the transmittance of light passing through the liquid crystal display panel also changes accordingly. Therefore, the light transmittance can be controlled for each pixel, and a desired image can be displayed on the liquid crystal display panel.

FIG. 12 shows a TV (transmittance-voltage) characteristic in a normally black mode of such a liquid crystal display panel. In FIG. 12, a is the T-V characteristic when viewed from the front of the panel, and d is the T-V characteristic when the line of sight is tilted upward or downward by 40 °. Further, b is a TV characteristic when looking down from the upper 40 ° direction, and c is a TV characteristic when looking up from the lower 40 ° direction in a liquid crystal display panel having no alignment division structure. As shown in FIG. 12, the TV of d of the liquid crystal display panel having the alignment division structure is shown.
The characteristic is a characteristic obtained by averaging b and c. That is, the transmittance on the high voltage side is lower than that of c,
There is also no hump-like characteristic seen in b. That is, in the liquid crystal display panel having the alignment division structure, the amount of change in optical characteristics when the viewing angle is changed is smaller than that in a normal liquid crystal display panel, and thus the viewing angle characteristics are significantly improved.

Further, Japanese Patent Laid-Open No. 6-118406 proposes to superpose an optically anisotropic film on a liquid crystal display panel having an alignment division structure. FIG. 13 is a diagram schematically showing the configuration of this type of liquid crystal display panel. In FIG. 13, reference numeral 50 denotes a liquid crystal panel (corresponding to 31 to 33 in FIG. 10) including a pair of substrates on which electrodes and an alignment film are formed, and liquid crystal sealed between the substrates. In this way, the liquid crystal panel 50 and the one deflection plate 39
In the normally black mode liquid crystal display panel, by arranging two optically anisotropic films 46 and 47 arranged so that their slow axes (directions of high refractive index) are orthogonal to each other, It is possible to prevent the portion that should be displayed in black from becoming whitish and improve the contrast.

FIG. 14 is a diagram showing the TV characteristic of this liquid crystal display panel. In FIG. 14, a shows the TV characteristic when the liquid crystal display panel is viewed from the front, and c shows the TV characteristic when the line of sight is tilted upward or downward by 40 °. Further, b is T when the line of sight is tilted upward or downward by 40 ° in a liquid crystal display panel having no optically anisotropic film.
-V characteristic. It can be seen from FIG. 14 that the transmittance when the voltage is low can be lowered by disposing the optically anisotropic film. That is, in the normally black mode liquid crystal display panel, the black portion can be displayed in black.

[0012]

However, FIG.
In the liquid crystal display panel having the structure shown in Figure 3, when used for a long period of time in a high temperature environment, bubbles are easily generated in the optically anisotropic films themselves or in the joint between the optically anisotropic film and the deflection plate, and the durability is sufficient. There is a drawback that it is not. Therefore, the liquid crystal display panel is not sufficiently reliable as a display device used in a relatively high temperature environment such as an aircraft or an automobile.

Further, in this liquid crystal display panel, the retardation (Δnd value: refractive index anisotropy Δn and thickness d) of the elliptical deflecting plate (the deflecting plate to which the optically anisotropic film is joined).
Even if an attempt is made to extract and inspect the product), the Δnd value cannot be measured because the two optically anisotropic films are superposed. Therefore, there is a drawback that quality control is difficult.

The present invention was created in view of the problems of the above-mentioned conventional example, has good visual characteristics, and is less likely to cause bubbles at the joint between the optically anisotropic film and the deflecting plate. An object of the present invention is to provide a liquid crystal display panel having high reliability and capable of measuring the axis angle and Δnd value of an elliptical deflection plate.

[0015]

Means for Solving the Problems The above-mentioned problems are related to first and second transparent substrates arranged to face each other, and liquid crystal sealed between these first and second transparent substrates. A first electrode and a second electrode which are provided on the facing surfaces of the first and second transparent substrates and control the alignment state of liquid crystal molecules for each pixel, and the first and second electrodes, respectively. First and second alignment films which are covered with each other and in which the rising directions of liquid crystal molecules are opposite to each other in the first and second regions which divide one pixel into two, and the facing surface of the first transparent substrate. A first optically anisotropic film disposed on the opposite side to the first optically deflected film, a first deflecting plate bonded to the first optically anisotropic film, and a side opposite to the facing surface of the second transparent substrate. And the second optically anisotropic film disposed on the second optical anisotropic film. That a second deflection plate be solved by a liquid crystal display panel, wherein the.

The optically anisotropic film is formed by stretching a polymer in a uniaxial direction, and stress is generated inside the optically anisotropic film in the direction of returning to the original state, especially when the polymer is left at a high temperature. Therefore, as shown in FIG. 13, when the two optically anisotropic films are superposed and adhered to each other, the stress generated in the two optically anisotropic films is superposed, and the two optically anisotropic films or the optically anisotropic films are optically bonded to each other. Peeling occurs at the joint between the anisotropic film and the deflector, which causes bubbles. Therefore, in the present invention, the two optically anisotropic films are not superposed and joined, but arranged so as to sandwich a pair of transparent electrodes. As a result, it is possible to avoid overlapping of stress even when used at high temperature for a long period of time, and it is possible to suppress peeling of the bonded portion and generation of bubbles. Therefore, the reliability of the liquid crystal display panel is significantly improved. Further, since the elliptical deflector is composed of one deflector and one optically anisotropic film, it is possible to measure the axial angle and Δnd value of the elliptic deflector, and quality control by sampling inspection is easy. become.

In this case, the slow axis of the optically anisotropic film is 0 ± 0 with respect to the rubbing direction of the alignment film provided on the substrate.
It is preferably within 10 °. If the angle formed by the rubbing direction of the alignment film and the slow axis of the optically anisotropic film deviates from this range, the viewing angle characteristics will be significantly deteriorated. The Δnd value of the optically anisotropic film is preferably 50 to 250 nm. That is, it is extremely difficult to manufacture an optically anisotropic film having a Δnd value of less than 50 nm, and when the Δnd value of the optically anisotropic film exceeds 250 nm, the viewing angle characteristics are significantly deteriorated.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a plan view showing a liquid crystal display panel according to an embodiment of the present invention, and FIG.
It is sectional drawing by the XX line of FIG. Pixel electrodes (first electrodes) 2 are arranged in a matrix on a transparent substrate (glass substrate) 1, and a gate bus line 13 and a data bus are formed on the transparent substrate 1 between the pixel electrodes 2. Line 1
4 are formed so as to intersect at a right angle. TFTs 15 are formed near the intersections of the gate bus lines 13 and the data bus lines 14, respectively. The gate of the TFT 15 is connected to the gate bus line 13, the drain is connected to the data bus line 14, and the source is connected to the pixel electrode 2. Also, the glass substrate 1
An alignment film 2 is formed on the pixel electrode 12, the TFT 15, the gate bus line 13, and the data bus line 14 so as to cover them. A region surrounded by the gate bus line 13 and the drain bus line 14 is each pixel region.

A transparent substrate (glass substrate) 3 is arranged above the transparent substrate 1. A color filter 4 having any one color of red (R), green (G), and blue (B) is provided for each pixel on the lower side of the transparent substrate 3, and under the color filter 4. Is provided with a counter electrode (second electrode) 5. A second alignment film 6 is provided below the counter electrode 5.

Each pixel region is divided into two regions I and II as shown in FIG. 1, and the rising direction of the liquid crystal molecules in the region I (indicated by arrow A) rises in the liquid crystal molecules in the region II. The direction is opposite to the direction (indicated by arrow B). In order to reverse the rising directions of the liquid crystal molecules in the regions I and II as described above, for example, when the alignment films 2 and 6 are rubbed, the rubbing direction in the region I and the region II are different from each other.
This can be realized by making the rubbing directions in the directions opposite to each other. The alignment films 2 and 6 are arranged so that the rising directions of the liquid crystal molecules (rubbing directions) are orthogonal to each other. A liquid crystal 7 is sealed between the transparent substrates 1 and 3.

A first optically anisotropic film 8 is arranged below the transparent substrate 1, and a first deflector 9 is bonded under the first optically anisotropic film 8. Has been done. Similarly, the second optically anisotropic film 10 is disposed on the transparent substrate 3, and the second deflecting plate 11 is bonded on the second optically anisotropic film 10. There is. The optically anisotropic films 8 and 10 are formed, for example, by stretching a polymer such as polycarbonate in a uniaxial direction, and have a retardation Δnd value of 50 to 250 nm and a thickness of 60 to 80 μm.

FIG. 3 is a schematic view showing the structure of the liquid crystal display panel of this embodiment. In this figure, the liquid crystal panel 2
The dashed arrow in 0 indicates the rubbing direction of the lower alignment film 2, and the solid arrow indicates the rubbing direction of the upper alignment film 6. The solid lines in the optically anisotropic films 8 and 10 indicate the slow axis direction, and the solid lines in the deflecting plates 9 and 11 indicate the absorption axis direction. In the present embodiment, as shown in FIG. 3, the first optically anisotropic film 8 is used.
Of the slow axis and the rubbing direction of the first alignment film 2 are arranged substantially parallel (0 ± 10 °), and the absorption axis of the deflection plate 9 and the rubbing direction of the second alignment film 6 are substantially perpendicular to each other. Is located in. Similarly, the direction of the slow axis of the second optically anisotropic film 10 and the rubbing direction of the second alignment film 6 are arranged substantially parallel (0 ± 10 °), and the deflection plates 9 and 11 are arranged. Are arranged so that their absorption axes are parallel to each other.

In the liquid crystal display panel of this embodiment having the above-mentioned structure, light is blocked when no voltage is applied between the electrodes 5 and 12, and when a voltage is applied between the electrodes 5 and 12, the electrodes are present between the electrodes. The liquid crystal molecules that rise rise along the rubbing direction of the alignment film and transmit light. In this case, in the present embodiment, the two regions I and II are provided for each pixel, and the alignment division structure in which the alignment directions of the liquid crystal molecules in the respective regions I and II are different is excellent in viewing angle characteristics. . Further, in the present embodiment, since the color tone is corrected by the optically anisotropic film, the black portion can be displayed even more black, and good contrast can be obtained.

Further, in this embodiment, since only one optically anisotropic film is bonded to one deflector, even if it is used for a long period of time in a high temperature environment, the optical anisotropy is increased. It is possible to suppress the generation of bubbles due to the shrinkage force of the film. Therefore, the liquid crystal display panel of the present embodiment has improved reliability as compared with the conventional one. Further, in the liquid crystal display panel of the present embodiment, one optical anisotropic film is bonded to one deflector plate to form an elliptical deflector plate.
Elliptical deflector (joint of deflector and optically anisotropic film)
It is possible to measure the axis angle and the Δnd value of, and the quality control by sampling inspection is easy.

Hereinafter, the liquid crystal display panel according to the present invention will be actually manufactured, and the visibility of the liquid crystal display panel will be described below in comparison with Comparative Examples. (First Example) As an example, a TFT liquid crystal display panel having the structure shown in FIGS. 1 to 3 was manufactured. The size of this liquid crystal display panel is 10.4 inches (diagonal line length), the number of pixels is 640 × 480 dots, and the size of each pixel is 100 × 2.
It is 90 μm. The Δnd value of the optically anisotropic film is 160 nm.

As Comparative Example 1, a liquid crystal display panel having the structure shown in FIG. 4 was manufactured. The liquid crystal display panel of Comparative Example 1 has the same configuration as that of the example except that it does not have an optically anisotropic film. As Comparative Example 2, a liquid crystal display panel having the structure shown in FIG. 5 was manufactured. In the liquid crystal display panel of Comparative Example 2, the two optically anisotropic films 8 and 10 are laminated and provided only on one side of the liquid crystal panel 20, and the Δnd value of the optically anisotropic film is 300 nm
The configuration is the same as that of the embodiment except that

With respect to the liquid crystal display panels of these Examples and Comparative Examples 1 and 2, the viewing direction was changed and the contrast in each viewing direction was examined. 6 is a diagram showing an isocontrast curve (Viewing Cone) of the liquid crystal display panel of the embodiment, FIG. 7 is a diagram showing an isocontrast curve of the liquid crystal display panel of Comparative Example 1, and FIG. 8 is a diagram of the liquid crystal display panel of Comparative Example 2. It is a figure which shows an isocontrast curve. However, these FIG.
In FIG. 8, the dot in the center of the figure indicates the front of the liquid crystal display panel, and the concentric scale lines indicate the angle with respect to the normal line of the panel. 6 to 8, the right side of the liquid crystal display panel is 0.0 deg, the upper side is 90.0 deg, and the left side is 180 deg.
The azimuth angle is 0 deg and the downward direction is 270.0 deg. Further, in the figure, a thick line is an iso-contrast curve with a contrast ratio of 30.0, a thin line is an iso-contrast curve with a contrast ratio of 20.0, a broken line is an iso-contrast curve with a contrast ratio of 10.0, and a dashed-dotted line is a contrast ratio.
The iso-contrast curve of 5.0 is shown.

As is apparent from FIGS. 6 to 8,
The liquid crystal display panel of Comparative Example 1 (FIG. 7) had relatively good viewing angle characteristics in the horizontal direction, but had extremely poor viewing angle characteristics in the vertical direction. The liquid crystal display panel of Comparative Example 2 (FIG. 8) was improved in viewing angle characteristics as compared with Comparative Example 1, but was not satisfactory. On the other hand, the liquid crystal display panel of the example (FIG. 6) was excellent not only in the horizontal direction but also in the vertical direction viewing angle characteristics as compared with Comparative Examples 1 and 2.

Next, the liquid crystal display panels of Example and Comparative Example 2 were examined for durability at high temperature. as a result,
In the liquid crystal display panel of Comparative Example 2, when left standing at a temperature of 100 ° C. for 24 hours, bubbles were observed at the joint between the deflection plate and the optically anisotropic film. On the other hand, in the liquid crystal display panel of the example, 1000
No air bubbles were observed in the bonded portion of the optically anisotropic film or the deflector even after standing for a time.

(Second Example) Next, the relationship between retardation and contrast of the optically anisotropic film was examined.
That is, an optically anisotropic film having a Δnd value of 90 to 570 nm is used, and the slow axis of these optically anisotropic films and the rubbing direction of the alignment film are arranged parallel (see FIG. 3) or perpendicular to each other. A liquid crystal display panel was prepared. Then, the output value of the photomultiplier tube when the viewing angle is inclined by 40 ° to the front of the liquid crystal display panel or to the upper, lower, left, or right direction in a state where no voltage is applied to the liquid crystal display panel, By examining, the contrast was evaluated.

Similarly, the Δnd value is 70 to 140n.
A liquid crystal display panel having the structure shown in FIG. 3 is manufactured using the optically anisotropic film of m, and these liquid crystal display panels also have a viewing angle in front of the liquid crystal display panel or in the upper, lower, left, or right direction. The contrast when tilted at 40 ° was examined. The results are shown in Tables 1 and 2 below. However, in Tables 1 and 2, the comparative example is the liquid crystal display panel used as the comparative example 2 in the first embodiment. Further, the output values of the photomultiplier tube when the voltage was applied to the liquid crystal display panel were almost the same when the angles were the same.

[0032]

[Table 1]

[0033]

[Table 2]

As shown in Tables 1 and 2, the slow axis of the optically anisotropic film and the rubbing direction of the alignment film are parallel to each other, and the Δnd value of the optically anisotropic film is 200 nm.
In the following cases, the output value of the photomultiplier tube was small, and the black portion could be displayed in black. In particular, as shown in Table 2, the Δnd value of the optically anisotropic film is 70 to 140.
It can be seen that when the thickness is nm, the contrast is extremely good.

[0035]

As described above, according to the present invention,
Since a pair of optically anisotropic films are arranged so as to be sandwiched between a pair of transparent substrates, the optically anisotropic films are bonded to each other and the optically anisotropic film and the polarizing plate are bonded even when used at a high temperature for a long time. The peeling is less likely to occur at the joint portion, the foaming at the joint portion can be suppressed, and the durability is excellent. Further, it is possible to measure the axis angle and the Δnd value of the elliptical deflection plate, and there is an advantage that the quality control by the sampling inspection is easy.

Further, each optically anisotropic film is arranged such that the slow axis thereof is within an angle of 0 ± 10 ° with respect to the rubbing direction of the alignment films provided on the first and second transparent substrates. By setting the retardation Δnd to 50 to 250 nm, the viewing angle characteristics can be further improved.

[Brief description of drawings]

FIG. 1 is a plan view showing a liquid crystal display panel according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a schematic diagram showing a configuration of a liquid crystal display panel of the present embodiment.

FIG. 4 is a schematic diagram showing a configuration of a liquid crystal display panel of Comparative Example 1.

5 is a schematic diagram showing a configuration of a liquid crystal display panel of Comparative Example 2. FIG.

FIG. 6 is a diagram showing isocontrast curves of the liquid crystal display panel of the example.

7 is a diagram showing isocontrast curves of the liquid crystal display panel of Comparative Example 1. FIG.

8 is a diagram showing isocontrast curves of the liquid crystal display panel of Comparative Example 2. FIG.

FIG. 9 is a plan view showing a conventional liquid crystal display panel.

10 is a cross-sectional view taken along line YY of FIG.

FIG. 11 is a diagram schematically showing liquid crystal molecules between transparent substrates, in which (a) shows a state in which a voltage is not applied between electrodes,
(B) shows a state in which a voltage is applied between the electrodes.

FIG. 12 is a diagram showing a TV (transmittance-voltage) characteristic in a normally black mode of a conventional liquid crystal display panel.

FIG. 13 is a diagram schematically showing a configuration of a conventional liquid crystal display panel provided with an optically anisotropic film.

FIG. 14 is a diagram showing TV characteristics of a conventional liquid crystal display panel provided with an optically anisotropic film.

[Explanation of symbols]

 1, 3, 31, 33 Transparent substrate 2, 6, 32, 36 Alignment film 5, 35 Counter electrode 7, 37 Liquid crystal 8, 10 Optical anisotropic film 9, 11, 39, 41 Deflection plate 12, 42 Pixel electrode 48 Liquid crystal molecule

Claims (4)

[Claims] 1. A first and a second device arranged opposite to each other.
Transparent substrate, liquid crystal enclosed between the first and second transparent substrates, and liquid crystal molecule arrangement states for each pixel provided on the respective facing surfaces of the first and second transparent substrates. The first and second electrodes to be controlled and the first and second electrodes respectively covering the first and second electrodes are covered with liquid crystal molecules in opposite directions in the first and second regions dividing one pixel into two. And a first optically anisotropic film disposed on the side opposite to the facing surface of the first transparent substrate, and bonded to the first optically anisotropic film. A first polarizing plate, a second optically anisotropic film arranged on the opposite side of the second transparent substrate from the facing surface, and a second optical anisotropic film bonded to the second optically anisotropic film. A liquid crystal display panel comprising: two deflecting plates. 2. The angle between the rubbing direction of the first alignment film and the slow axis of the first optically anisotropic film is 0 ±.
It is set within 10 °, and the angle formed by the rubbing direction of the second alignment film and the slow axis of the second optically anisotropic film is set within 0 ± 10 °. The liquid crystal display panel according to claim 1. 3. The liquid crystal display panel according to claim 2, wherein the retardation (Δnd value) of the first and second optically anisotropic films is 50 to 250 nm. 4. The liquid crystal display panel according to claim 2, wherein the absorption axes of the first and second deflecting plates are arranged in parallel with each other.