JP4370207B2 - Liquid crystal display - Google Patents

Description

The present invention relates to a liquid crystal display comprising a display by entering the liquid crystal panel, and affixed to a panel member through an adhesive layer polarizing plate affixed to the display liquid crystal panel is provided so as to be embedded, the Relates to the device.

  Since two human eyes are located spatially apart in the head, they perceive images viewed from two different viewpoints. Then, the human brain recognizes the three-dimensional effect based on the parallax between these two images.

  Utilizing this principle, a liquid crystal display device has been developed that gives a parallax by visually recognizing an image viewed from different viewpoints on the left and right eyes of an observer and performs 3D display (stereoscopic 3D display).

  In such a liquid crystal display device, as a technique for supplying images of different viewpoints to the left and right eyes of an observer, for example, a left eye image and a right eye image encoded according to color, polarization state, or display time are displayed on a screen. Some display above and provide images corresponding to the left and right eyes by separating them with a spectacle-like filter system worn by an observer.

  In addition, by combining the display liquid crystal panel with a parallax barrier in which light transmission regions and light blocking regions are alternately formed in stripes, each of the right-eye image and the left-eye image displayed on the display liquid crystal panel is displayed. On the other hand, a specific viewing angle is given by a parallax barrier, and if it is from a specific observation area in the space, images corresponding to the left and right eyes are visually recognized, and the observer uses a visual aid such as a filter system. There is also a technology that makes it possible to recognize a 3D display without having to.

  A liquid crystal display device provided with such a parallax barrier is disclosed in Patent Document 1. In Patent Document 1, a configuration using a patterned retardation plate as a parallax barrier is disclosed.

  Patent Document 2 discloses a liquid crystal display device that can electrically switch between 3D display and 2D display (planar display) by configuring a switching liquid crystal layer or the like as a means for switching the parallax barrier function between valid and invalid, That is, a liquid crystal display device that performs 3D display when the function of the switching liquid crystal layer is enabled and performs 2D display when the function of the parallax barrier is disabled is disclosed.

  As described above, a technique for performing 3D display by combining a display liquid crystal panel and a parallax barrier is known.

  Patent Document 3 describes a liquid crystal display device capable of 2D display and 3D display as described above, that is, a 2D / 3D switching type liquid crystal display device, which is patterned with a display liquid crystal panel using TFTs or the like. And a switching liquid crystal panel including a parallax barrier is disclosed.

The above-mentioned 2D / 3D switching type display liquid crystal panel composed of two panels, a display liquid crystal panel and a switching liquid crystal panel, is obtained by bonding these panels with an adhesive such as an ultraviolet curable resin or a double-sided tape. It has become. However, in general, an adhesive made of a resin material is used for bonding the two because high-precision alignment is required between the active area of the display liquid crystal panel and the active area of the switching liquid crystal panel. . Specifically, for example, the display liquid crystal panel and the switching liquid crystal panel are bonded together via an adhesive made of an ultraviolet curable resin, and after alignment, both the panels are cured by irradiating ultraviolet rays from the outside to cure the adhesive. Bonding is performed.
Japanese Patent Laid-Open No. 10-229567 (released on August 25, 1998) Japanese Patent Laid-Open No. 10-123461 (published on May 15, 1998) Japanese Patent Laid-Open No. 3-119889 (published on May 22, 1991)

  Incidentally, as shown in FIG. 4, when the switching liquid crystal panel 120 ′ is bonded to the display liquid crystal panel 110 ′, the polarizing plate 115 ′ is attached to the adhesive surface on the back surface of the display liquid crystal panel 110 ′. A thin central portion (region a) corresponding to the polarizing plate 115 ′ and a thick outer peripheral portion (region b) corresponding to the outer side of the polarizing plate 115 ′ are formed in the adhesive layer 130 ′ between both panels. It will be. Specifically, for example, a display liquid crystal panel 110 ′ having a 250 μm-thick polarizing plate 115 ′ and a switching liquid crystal panel 120 ′ are pasted together with an adhesive, and the polarizing plate 115 ′ at that time is attached. When the adhesive thickness at the corresponding central portion is 50 μm, the adhesive thickness at the outer peripheral portion corresponding to the outside of the polarizing plate 115 ′ is 300 μm (250 μm + 50 μm).

  When these are irradiated with ultraviolet rays, the adhesive is cured and an adhesive layer 130 ′ is formed, but the thick outer periphery corresponding to the outer side of the polarizing plate 115 ′ rather than the thin central portion corresponding to the polarizing plate 115 ′. The part contracts more greatly. In the above specific example, assuming that the curing shrinkage rate of the adhesive is 6%, the thickness of the central portion of the thickness of 50 μm corresponding to the polarizing plate 115 ′ is 50 μm−50 μm × 6% = 47 μm, and contracts by 3 μm. On the other hand, the thickness of the outer peripheral portion having a thickness of 300 μm corresponding to the outer side of the polarizing plate 115 ′ is 300 μm−300 μm × 6% = 282 μm and contracts by 18 μm. That is, the outer peripheral portion corresponding to the outside of the polarizing plate 115 ′ contracts by 15 μm more than the central portion corresponding to the polarizing plate 115 ′. When the shrinkage between the central portion and the outer peripheral portion of the adhesive layer 130 ′ occurs in this manner, an internal stress is generated in the adhesive layer 130 ′, which acts on the display liquid crystal panel 110 ′, thereby causing the thickness of the liquid crystal cell. As a result, display unevenness occurs in the peripheral portion of the screen, and the display quality becomes extremely low. This is particularly remarkable in a transflective display type liquid crystal display device that is sensitive to changes in the thickness of the liquid crystal cell and easily causes display unevenness. In addition, the above-described display unevenness is particularly noticeable in a high-temperature and high-humidity atmosphere, and there is a problem in reliability as a liquid crystal display device.

  On the other hand, an adhesive with a low cure shrinkage rate may be used, but 6% is a general limit for acrylic adhesives and 4% is possible for epoxy adhesives, but it is a fundamental solution. Must not.

  The present invention has been made in view of such points, and the object of the present invention is that even if a panel member is attached to the back surface of a display liquid crystal panel provided with a polarizing plate via an adhesive layer, An object of the present invention is to provide a liquid crystal display device in which the occurrence of display unevenness is suppressed.

The present invention to achieve the above object, a display by entering the liquid crystal panel, and affixed to a panel member through an adhesive layer polarizing plate affixed to the display liquid crystal panel is provided so as to be embedded A liquid crystal display device comprising:
The adhesive layer, together with the storage modulus at the 23 ° C. is formed at 1.0 × 10 ³ ~1.0 × photocurable the cross-linkable resin is 10 6 ^Pa, corresponding to the polarizing plate It has a thin central portion and a thick outer peripheral portion corresponding to the outside of the polarizing plate .

According to said structure, since the storage elastic modulus in 23 degreeC of the contact bonding layer formed with cross-linking curable resin is 1.0 * 10 < ³ > -1.0 * 10 < ⁶ > Pa, it corresponds to a polarizing plate at the time of hardening temporarily. Even if the non-uniform shrinkage occurs between the center portion and the outer peripheral portion outside the center portion and internal stress is generated in the adhesive layer, it is absorbed by the elasticity of the adhesive layer. Therefore, the influence of the internal stress of the adhesive layer acting on the display liquid crystal panel on the thickness of the liquid crystal cell is small, and the occurrence of display unevenness in the peripheral portion of the screen is suppressed. That is, unlike the prior art, the internal stress of the adhesive layer does not act on the liquid crystal panel for display, thereby preventing the thickness of the liquid crystal cell from being affected and causing significant display unevenness at the periphery of the screen.

Here, if the storage elastic modulus at 23 ° C. of the adhesive layer is lower than 1.0 × 10 ³ , the adhesive performance may not be maintained. On the other hand, if the storage elastic modulus at 23 ° C. of the adhesive layer is higher than 1.0 × 10 ⁶ , the internal stress generated in the adhesive layer cannot be sufficiently absorbed. From the viewpoint of absorption of internal stress generated in the adhesive layer, the storage elastic modulus at 23 ° C. of the adhesive layer is preferably 1.0 × 10 ⁵ Pa or less.

  In the present invention, the panel member is not particularly limited, and examples thereof include a switching liquid crystal panel for switching between a two-dimensional display mode and a three-dimensional display mode.

  The present invention is particularly effective when the display liquid crystal panel is a transflective display type because it is sensitive to changes in the thickness of the liquid crystal cell and display irregularities are relatively likely to occur.

As described above, according to the present invention, the storage modulus at 23 ° C. of the formed by photocuring of the cross-linkable resin adhesive layer is ^{1.0 × 10 3 ~1.0 × 10 6} Pa Therefore, the influence of the internal stress of the adhesive layer acting on the display liquid crystal panel on the thickness of the liquid crystal cell is small, and the occurrence of display unevenness in the peripheral portion of the screen can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the following embodiment.

  FIG. 1 shows a schematic configuration of a display panel module 100 of a 2D / 3D display switching type liquid crystal display device according to the present embodiment.

  The display panel module 100 includes a display liquid crystal panel 110 and a switching liquid crystal panel 120 attached to the back surface of the liquid crystal panel 110 via an adhesive layer 130.

  The display liquid crystal panel 110 is of an active matrix drive type, is provided so as to be opposed to each other, and a front-side counter substrate 111 and a back-side active matrix substrate 112, the periphery of which is bonded with a sealing material, And a liquid crystal layer 113 provided so as to be sandwiched between them.

  The counter substrate 111 is provided with a common electrode on the inner liquid crystal layer 113 side. Moreover, the 1st polarizing plate 114 is stuck by the center part of the front side which is an outer side.

  The active matrix substrate 112 is provided with a gate line and a source line so as to form a lattice on the inner liquid crystal layer 113 side, and a pixel electrode via a thin film transistor (TFT) as a switching element at each intersection. Is provided. In addition, a second polarizing plate 115 is attached to a central portion on the back side that is the outside. Further, a wiring board 140 such as an FPC (Flexible Printed Circuits) is connected, and a predetermined signal is sent to the gate line and the source line through the wiring board 140.

  The liquid crystal layer 113 is constituted by, for example, a TN (Twisted Nematic) liquid crystal layer.

  In this display liquid crystal panel 110, one pixel is defined by one pixel electrode, and for each pixel, the alignment state of the liquid crystal molecules of the liquid crystal layer 113 is modulated by an applied voltage between the pixel electrode and the counter electrode, The light transmittance is adjusted according to the image to be displayed. That is, the display liquid crystal panel 110 constitutes a display image generation unit for generating a display screen corresponding to the image data.

  The display liquid crystal panel 110 may be a transparent electrode in which each pixel electrode is made of ITO (Indium Tin Oxide) or the like, or a part of each pixel electrode is a transparent electrode and the other part is aluminum or the like. The electrode may be a reflective electrode formed by the above, that is, a transflective display type.

  FIG. 2 shows the switching liquid crystal panel 120.

  The switching liquid crystal panel 120 is provided so as to be opposed to each other and sandwiched between the front-side driving-side substrate 121 and the rear-side opposing substrate 122 whose peripheral edges are bonded with a sealing material. Liquid crystal layer 123.

  Each of the driving side substrate 121 and the counter substrate 122 is provided with a transparent electrode on the inner side of the liquid crystal layer 123. In addition, a third polarizing plate is attached to the counter substrate 122 on the back side which is the outside so that the transmission axis coincides with the second polarizing plate 115 of the display liquid crystal panel 110. Further, a wiring board 150 such as FPC (Flexible Printed Circuits) is connected, and a predetermined signal is sent to the transparent electrode through this.

  In the liquid crystal layer 123, stripes are alternately formed by an isotropic region 124 formed of a refractive index isotropic transparent resin and an anisotropic region 125 formed of liquid crystal having a refractive index anisotropy. It is provided as follows.

  In this switching liquid crystal panel 120, the linearly polarized light transmitted through the third polarizing plate is transmitted as it is in the isotropic region 124 formed of the refractive index isotropic transparent resin in the liquid crystal layer 123. For the anisotropic region 125 formed of the liquid crystal having a rate anisotropy, the alignment state of the liquid crystal molecules is modulated by the voltage applied to the liquid crystal layer 123 to change the polarization state of the linearly polarized light. Specifically, in the anisotropic region 125, when the liquid crystal molecules of the liquid crystal layer 123 are in parallel alignment or TN alignment, the liquid crystal molecules are applied to the substrate when a voltage is applied, and in the vertical alignment, no voltage is applied. Since the liquid crystal layer 123 rises, the refractive index anisotropy of the liquid crystal layer 123 does not affect the linearly polarized light, and the linearly polarized light transmitted through the third polarizing plate is transmitted as it is, as in the isotropic region 124. On the other hand, the refractive index anisotropy of the liquid crystal layer 123 affects the linearly polarized light when no voltage is applied when the liquid crystal molecules of the liquid crystal layer 123 are in parallel alignment or TN alignment, and when the voltage is applied in the case of vertical alignment, The linearly polarized light transmitted through the third polarizing plate is changed in polarization state and transmitted.

  In the above configuration, in the display panel module 100, when the polarization state of the linearly polarized light is not changed in the anisotropic region 125 of the switching liquid crystal panel 120, as shown in FIG. In addition, the linearly polarized light transmitted through any of the anisotropic regions 125 is incident on the display liquid crystal panel 110, and at that time, the same light reaches the left and right eyes of the observer, whereby a two-dimensional image is obtained. Has been observed. On the other hand, when the polarization state of the linearly polarized light is changed in the anisotropic region 125 of the switching liquid crystal panel 120, the linearly polarized light transmitted through the anisotropic region 125 is the second polarizing plate as shown in FIG. Since only the linearly polarized light that is shielded because it cannot pass through 115 and passes through the isotropic region 124 is incident on the display liquid crystal panel 110, different light reaches the left and right eyes of the observer at that time, and The viewing angle and the like are set so that the right eye image displayed on the display liquid crystal panel 110 is observed on the right eye and the left eye image displayed on the display liquid crystal panel 110 is observed on the left eye, respectively. As a result, a three-dimensional image is observed. That is, the anisotropic region 125 of the switching liquid crystal panel 120 constitutes a parallax barrier, and switching between two-dimensional display and three-dimensional display can be performed by switching this ON / OFF.

The adhesive layer 130 between the display liquid crystal panel 110 and the switching liquid crystal panel 120 is provided so as to embed a second polarizing plate 115 attached to the central portion of the back surface of the display liquid crystal panel 110. The adhesive layer 130 is photo-curing such as UV-curing, and is formed of a transparent and optically isotropic cross-linking curable resin, which is used as a film at a rate of temperature increase of 3 ° C./min and a frequency of 2.5 Hz. When the viscoelastic properties are measured, the storage elastic modulus (dynamic elastic modulus) at 23 ° C. is 1.0 × 10 ^{3 to} 1.0 × 10 ⁶ Pa (preferably 1.0 × 10 ³ to 1. 0 × 10 ⁵ Pa). The adhesive layer 130 is coated with a photo-curing cross-linking resin adhesive on the back surface of the display liquid crystal panel 110 and / or the front surface of the switching liquid crystal panel 120 and then bonded to the back surface of the liquid crystal panel 110. It is formed by irradiating the light. Thus, since the adhesive is formed of a photo-curable cross-linking curable resin, the workability of the bonding operation between the display liquid crystal panel 110 and the switching liquid crystal panel 120 is extremely excellent. Here, specific examples of the cross-linking curable resin forming the adhesive layer 130 include an acrylic resin containing a urethane acrylate oligomer and an acrylate ester.

  Such a display panel module 100 is housed in a case together with other components such as a driver and a backlight to constitute a 2D / 3D display switching type liquid crystal display device.

According to the 2D / 3D display switching type liquid crystal display device having the above configuration, the storage elastic modulus at 23 ° C. of the adhesive layer 130 formed of the cross-linking curable resin is 1.0 × 10 ^{3 to} 1.0 × 10 ⁶ Pa. Therefore, even if the central portion corresponding to the second polarizing plate 115 and the outer peripheral portion on the outer side of the second polarizing plate 115 are shrunk at the time of curing to cause internal stress in the adhesive layer 130, the elasticity of the adhesive layer 130 Therefore, the influence of the internal stress of the adhesive layer 130 acting on the display liquid crystal panel 110 on the thickness of the liquid crystal cell is small, and the occurrence of display unevenness in the peripheral portion of the screen is suppressed. In particular, since such an effect is sensitive to changes in the thickness of the liquid crystal cell and easily causes display unevenness, the pixel electrode is formed of a transparent electrode and a reflective electrode, and the display liquid crystal panel 110 is a transflective display. It becomes prominent when it is a mold. Therefore, according to this, as in the prior art, the internal stress of the adhesive layer 130 acts on the liquid crystal panel 110 for display, and thereby the thickness of the liquid crystal cell is affected, resulting in significant display unevenness at the periphery of the screen. Absent.

  In the above embodiment, the switching liquid crystal panel 120 is pasted on the back surface of the display liquid crystal panel 110. However, the present invention is not limited to this, and other panel members are provided on the back surface of the display liquid crystal panel 110. May be pasted.

  In the above embodiment, the active matrix drive type TN type display liquid crystal panel 110 is used. However, the present invention is not limited to this, and any display method can be used as long as it has a function of generating a display screen. The STN method may be used, or the drive method may be a passive matrix drive.

  The test evaluation actually performed will be described below.

(Test evaluation sample)
<LCD panel for display>
Four general active matrix type transflective display type liquid crystal display panels each having a polarizing plate attached to the center of each side of the panel were prepared. The reason why the transflective display type is used is that it is sensitive to changes in the thickness of the liquid crystal cell and display unevenness is likely to occur.

<Switching LCD panel>
Four switching liquid crystal panels manufactured as follows were prepared.

  First, a solution of a negative resist for spacer (trade name: JNPC-77 manufactured by Nippon Synthetic Rubber Co., Ltd.) was applied on a glass substrate coated with ITO by rotating it at 2000 rpm for 1 minute with a spin coater.

  Next, the glass substrate was calcined at 120 ° C. for 10 minutes in a clean oven to remove the residual solvent in the spacer.

  Next, it exposed using the photomask so that the desired translucent resin pattern used as an isotropic area | region may be formed. At this time, ultraviolet rays were exposed under the condition of an exposure amount of 200 mJ, and development was performed with a 2% aqueous solution of NaOH at 30 ° C. for 1 minute.

  Next, an alignment film made of polyamic acid was formed and baked at 250 ° C. for 30 minutes in a clean oven.

  Next, an alignment treatment was performed so as to obtain a desired alignment direction by rubbing the baked alignment film, thereby preparing a lower substrate.

  The upper substrate 1 was produced in the same manner as the lower substrate.

  Next, a peripheral sealing material (trade name: XN-21S manufactured by Mitsui Chemicals, Inc.) was formed on the upper substrate using a screen plate in which a frame-like seal shape was patterned.

  Next, heating was performed at 100 ° C. for 30 minutes in a clean oven to remove the residual solvent in the sealing material.

  Next, after bonding the upper and lower substrates, baking was performed at 200 ° C. for 60 minutes.

  Next, a liquid crystal material was injected into the gap between the bonded upper and lower substrates to form a liquid crystal layer serving as a parallax barrier, and polarizing plates were bonded to both sides to manufacture a switching liquid crystal panel. A parallel (homogeneous) liquid crystal layer was formed using a liquid crystal material having positive dielectric anisotropy. This liquid crystal layer has a retardation of λ / 2 when no voltage is applied. Further, the transmission axis directions of the polarizing plates were set to be substantially parallel to each other. Further, the alignment direction of the liquid crystal layer was set to 45 ° with respect to the transmission axis direction of the polarizing plate.

<Bonding of both panels>
Four types of acrylic resins having storage elastic modulus at 23 ° C. after curing of 1.0 × 10 ⁵ Pa, 1.0 × 10 ⁶ Pa, 1.0 × 10 ⁷ Pa, and 1.0 × 10 ⁸ Pa, respectively. The display liquid crystal panel and the switching liquid crystal panel were bonded together using an ultraviolet curable resin adhesive. At this time, the polarizing plate on the back side of the display liquid crystal panel was embedded in the ultraviolet curable resin adhesive. The acrylic ultraviolet curable resin adhesive used is specifically an acrylic resin containing a urethane acrylate oligomer and an acrylate ester.

  Next, an adhesive layer was formed by irradiating an ultraviolet ray with a light quantity of 1000 mJ by an ultraviolet irradiator (metal halide lamp) to cure the ultraviolet curable resin adhesive, thereby producing a display panel module in which both panels were bonded. Samples 1 to 4 were prepared in order from the one having the lowest storage elastic modulus of the adhesive layer.

(Test evaluation method)
A driver, a backlight and the like were attached to each of the four display panel modules of Samples 1 to 4 to display images, and the display unevenness level was visually evaluated.

  In addition, after holding each of the four display panel modules of Samples 1 to 4 in a dry atmosphere at a temperature of 70 ° C. for 100 hours, 250 hours, and 500 hours, a driver, a backlight, and the like are attached to display an image, and display unevenness level Was visually evaluated.

  Furthermore, after holding each of the four types of display panel modules of Samples 1 to 4 in an atmosphere of 45 ° C. and 95% humidity for 100 hours, 250 hours and 500 hours, a driver, a backlight, etc. are attached to display an image. The display unevenness level was visually evaluated.

  Here, the display unevenness level was evaluated in five stages, with the state having no display unevenness being 0 level and the state having the most significant display unevenness being 4 levels. From the viewpoint of practicality, the 0 level and the 1 level are acceptable levels.

(Test evaluation results)
Tables 1 and 2 show the results of the test evaluation.

According to Tables 1 and 2, the storage elastic modulus of the adhesive layer is 1.0 × 10 ⁵ Pa and 1.0 × 10 ⁶ Pa, respectively, regardless of whether it is held in a high temperature or high humidity environment. In Samples 1 and 2, which are good image displays, sample 3 and 4 in which the storage elastic modulus of the adhesive layer is 1.0 × 10 ⁷ Pa and 1.0 × 10 ⁸ Pa, respectively, display unevenness It can be seen that is remarkable. These results show that in Samples 1 and 2, the storage elastic modulus of the adhesive layer is low, and therefore, during the curing, uneven shrinkage occurs in the central portion corresponding to the polarizing plate and the outer peripheral portion on the outer side, and internal stress is applied to the adhesive layer. Is absorbed by the elasticity of the adhesive layer, whereas in Samples 3 and 4, since the storage elastic modulus of the adhesive layer is high, the internal stress generated in the adhesive layer is not absorbed. This is thought to be due to the effect on cell thickness.

In addition, an adhesive layer of 1.0 × 10 ³ Pa or less was not examined because it was out of the measuring machine evaluation area, but such an adhesive layer is considered to hinder adhesive performance.

From the above results, it is preferable to form the adhesive layer with a cross-linking curable resin having a storage elastic modulus at 23 ° C. of 1.0 × 10 ^{3 to} 1.0 × 10 ⁶ Pa. Therefore, it is more preferably 1.0 × 10 ⁵ Pa or less.

The present invention relates to a liquid crystal display comprising a display by entering the liquid crystal panel, and affixed to a panel member through an adhesive layer polarizing plate affixed to the display liquid crystal panel is provided so as to be embedded, the Useful for equipment.

It is a side view of a display panel module. It is a front view of a switching liquid crystal panel. It is a figure for demonstrating switching of 2D display and 3D display. It is a figure for demonstrating the cause of the display nonuniformity of a liquid crystal display device.

100 display panel modules 110 and 110 ′ display liquid crystal panel 111 counter substrate 112 active matrix substrate 113 liquid crystal layer 114 first polarizing plates 115 and 115 ′ (second) polarizing plates 120 and 120 ′ switching liquid crystal panel 121 driving side substrate 122 opposite Substrate 123 Liquid crystal layer 124 Isotropic region 125 Anisotropic region 130, 130 ′ Adhesive layer 140, 150 Wiring substrate

Claims (4)

A display by entering the liquid crystal panel, a liquid crystal display device provided with a stuck panels member via an adhesive layer polarizing plate affixed to the display liquid crystal panel is provided so as to be embedded ,
The adhesive layer, together with the storage modulus at the 23 ° C. is formed at 1.0 × 10 ³ ~1.0 × photocurable the cross-linkable resin is 10 6 ^Pa, corresponding to the polarizing plate A liquid crystal display device comprising a thin central portion and a thick outer peripheral portion corresponding to the outside of the polarizing plate . The liquid crystal display device according to claim 1,
The adhesive layer is a liquid crystal display device whose storage elastic modulus at 23 ° C. is 1.0 × 10 ⁵ Pa or less. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the panel member is a switching liquid crystal panel for switching between a two-dimensional display mode and a three-dimensional display mode. The liquid crystal display device according to claim 1,
A liquid crystal display device, wherein the display liquid crystal panel is a transflective display type.

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