JP5076781B2 - Transmission type liquid crystal display device and electronic apparatus - Google Patents

Description

The present invention relates to a transmissive liquid crystal display device and an electronic apparatus including the transmissive liquid crystal display device.
In particular, the present invention relates to a transmissive liquid crystal display device capable of displaying predetermined characters, logos, and the like in a power-off state, and an electronic apparatus including the transmissive liquid crystal display device.

As a liquid crystal display panel, a transmissive type, a reflective type, and a transflective liquid crystal display device having both transmissive and reflective properties (see Patent Document 1 below) are known. Among these, the transflective liquid crystal display device has a light transmission region having a pixel electrode and a light reflection over region having both the pixel electrode and the reflection plate in one pixel region. In a dark place, the backlight is turned on and an image is displayed using the light transmission area, and in a bright place, the image is displayed using outside light in the light reflection excessive area without turning on the backlight. Is. Therefore, the transflective liquid crystal display panel has an advantage that power consumption can be significantly reduced because it is not necessary to always turn on the backlight. This transflective liquid crystal display device is widely used as a display unit of a small-sized electronic device such as a mobile phone.

On the other hand, in recent years, there has been a great demand for improvements in the design of electronic devices. For example, in mobile phones, not only displays an arbitrary image on a standby screen, but also a wide variety such as a manufacturer's logo and a specific pattern. An image is displayed. In addition, since electronic devices such as mobile phones have high definition and image display has increased, transflective liquid crystal display devices are often used as a transmissive type by turning on a backlight. It has become.
Japanese Patent Laid-Open No. 11-101992

When an image is displayed on the display unit of the liquid crystal display device, the liquid crystal display device needs to be driven and displayed while the power is on. However, in the conventional liquid crystal display device, nothing is displayed when the power is turned off, so that an image cannot be displayed when the power is turned off. Therefore, in order to display a standby screen or the like for a long time, it is necessary to continue driving a specific pixel for a long time, so that power consumption increases accordingly. In this way, when a standby screen or the like is displayed for a long time, a transflective liquid crystal display device may be driven as a reflective type without turning on the backlight. However, the longer the display time is, the more proportional it is. As a result, power consumption increases. Moreover, in a transmissive liquid crystal display device, even when a standby screen or the like is displayed, it cannot be visually recognized unless the backlight is turned on, so that power consumption becomes enormous. Such an increase in power consumption becomes a serious problem for small electronic devices such as mobile phones.

In recent years, proposals have been made to make it possible to display such an image even when the power is turned off and to improve the design of the entire device including the display unit. For this purpose, it is necessary to be able to display some image even when the power of the liquid crystal display device is turned off. However, conventionally, a transmissive liquid crystal display device that can display a substantially normal image when the power is turned on and can display some image when the power is turned off has not been known.

In view of the circumstances as described above, an object of the present invention is to provide a display with a wide range of expressive power that can display a predetermined pattern including a symbol for identification such as a company name even when the power is turned off. It is an object of the present invention to provide a transmissive liquid crystal display device having high characteristics and an electronic apparatus including the liquid crystal display device.

In order to achieve the above object, a transmissive liquid crystal display device according to the present invention is a transmissive liquid crystal display device in which a plurality of subpixels each having a light transmissive region are arranged in a matrix to form a display region, A light reflection layer is partially formed in the region, and the cell gap is set to be substantially equal between the region where the light reflection layer is provided and the light transmission region. A reflection display in which a predetermined pattern is formed in the display area is performed by the light reflection layer formed in the pixel area.

In the transmissive liquid crystal display device according to the present invention, when the transmissive liquid crystal display device is in a non-driven state, a light reflecting region is formed in the sub-pixel corresponding to the pattern to be displayed in the display region. The light reflection region can reflect outside light in a non-driven state. Therefore, even when the transmissive liquid crystal display device is in a non-driven state, the color of the color layer corresponding to the pattern such as the identification pattern when incident light from outside light is emitted in the portion where the light reflection region is formed Since it is emitted as emitted light having a pattern, it is possible to display a pattern. In addition, when the transmissive liquid crystal display device is in a driving state, the reflected light from the light reflection region is weak, so that a good image display can be performed using the light transmission region. Therefore, the transmissive liquid crystal display device of the present invention is a transmissive liquid crystal display device having a wide range of expressive power and high display characteristics.

In the transmissive liquid crystal display device of the present invention, it is preferable that the light transmission region and the light reflection region have the same cell gap.

That is, since the transmissive liquid crystal display device of the present invention is not a transflective liquid crystal display device, image display is not performed in the light reflection region during driving, and therefore the difference in retardation between the light reflection region and the light transmission region is taken into consideration. There is no need. Therefore, the transmissive liquid crystal display device of the present invention can reduce a part of the process for manufacturing the transflective liquid crystal display device, and has a simple structure and a low cost while having a light reflecting region in part. Thus, a transmissive liquid crystal display device that can be manufactured easily and easily is obtained.

In the transmissive liquid crystal display device of the present invention, it is preferable that the light transmissive region operates in a normally black mode, and the region provided with the light reflecting layer operates in a normally white mode.

In the normally black mode, in the non-driving state where no electric field is applied between the driving electrodes of the liquid crystal, the liquid crystal molecules are aligned in the direction regulated by the alignment film and do not transmit light. Become. However, in a driving state in which an electric field is applied between the driving electrodes of the liquid crystal, the liquid crystal molecules are moved by the electric field and thus transmit light. On the other hand, in the normally white mode, in the non-driving state where no electric field is applied between the liquid crystal driving electrodes, the liquid crystal molecules are aligned in the direction regulated by the alignment film and transmit light. Is displayed in white. However, in a driving state where an electric field is applied between the liquid crystal driving electrodes,
Since the liquid crystal molecules are moved by the electric field, the liquid crystal molecules do not transmit light and display black.

According to the transmissive liquid crystal display device of the invention, the light transmissive region operates in the normally black mode and the light reflective region operates in the normally white mode. Therefore, when the electric field is not applied to the liquid crystal, The transmission area is displayed in black, and the light reflection area is displayed in white. Therefore,
According to the transmission type liquid crystal display device of the present invention, even when the transmission type liquid crystal display device is in a non-driven state, the identification pattern is generated when incident light from outside light is emitted in the portion where the light reflection region is formed. Since it is emitted as emitted light having a color layer color corresponding to the pattern such as, it is possible to display the pattern particularly clearly. In addition, when the transmissive liquid crystal display device is in a driving state, the reflected light from the light reflection region is weak, so that a good image display can be performed using the light transmission region. Therefore, according to the transmissive liquid crystal display device of the invention, a transmissive liquid crystal display device having a wide range of expressive power and high display characteristics is obtained.

In the transmissive liquid crystal display device of the present invention, the light reflection region is formed in all the subpixels of the display region, and other than the subpixels corresponding to the pattern to be displayed in the display region. The light reflecting region is preferably operated in a normally black mode.

When the light reflection areas are formed in all the sub-pixels, it is possible to match the transmittance of the light reflection areas of the sub-pixels corresponding to the pattern desired to be displayed in the display area and the other pixels, so that the display image quality is particularly improved. . Note that the sub-pixels corresponding to the pattern to be displayed in the display area are in the normally white mode. Therefore, if the light reflection area of the other sub-pixels is set in the normally black mode, the sub-pixel is displayed in the display area. The pattern you want to keep will be clearly visible.

In the transmissive liquid crystal display device of the present invention, the transmissive liquid crystal display device in which the light transmissive region operates in a normally black mode is driven in a vertical alignment VA (vertically aligned) mode or a lateral electric field mode. It is preferable that

These liquid crystal display devices driven in the VA mode or the transverse electric field mode are not only transmissive liquid crystal display devices in a normally black mode, but also have a feature that the contrast is good with a wide viewing angle. Therefore, a transmissive liquid crystal display device having a wide viewing angle and good contrast while exhibiting the effects of the present invention is obtained. Note that a transmissive liquid crystal display device driven in a lateral electric field mode includes an IPS (In-Plane Switching) mode or an FFS (Fringe Field).
Switching) mode can be used.

In the transmissive liquid crystal display device of the present invention, when the transmissive liquid crystal display device is in a non-driven state, the color of the light reflecting region of the sub-pixel corresponding to the pattern to be displayed in the display region. The filter layer can be removed.

According to the transmissive liquid crystal display device of this aspect, the pattern to be displayed when the transmissive liquid crystal display device is in the non-driven state can be displayed even in black and white, and various color tone patterns can be displayed. .

Furthermore, in order to achieve the above object, an electronic apparatus according to the present invention includes any one of the transmissive liquid crystal display devices described above.

According to the electronic apparatus of the present invention, an electronic apparatus having a normally black mode transmissive liquid crystal display device having a wide range of expressiveness and good contrast can be obtained.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies a VA mode transmissive liquid crystal display device as a transmissive liquid crystal display device for embodying the technical idea of the present invention. It is not intended to be specific to a liquid crystal display device, and can be equally applied to other embodiments within the scope of the claims. In each drawing used for the description in this specification, each layer and each member are displayed in different scales so that each layer and each member can be recognized on the drawing. However, it is not necessarily displayed in proportion to the actual dimensions.

FIG. 1 is a diagram showing the overall configuration of a transmissive liquid crystal display device. FIG. 2 is a schematic cross-sectional view taken along the line II-II in FIG. FIG. 3 is a schematic cross-sectional view of one sub pixel at a position corresponding to a pattern to be displayed according to the first embodiment. FIG. 4 is a schematic cross-sectional view of one sub-pixel of a conventional transflective liquid crystal display device. FIG. 5 is a plan view showing a display state when the liquid crystal display device of the embodiment is not driven. 6A is a diagram showing a personal computer equipped with the liquid crystal display device of the present invention, and FIG. 6B is a diagram showing a mobile phone equipped with the liquid crystal display device of the present invention.

As an embodiment of the present invention, a thin film transistor (Thin Film Tran) is used as a switching element.
An active matrix VA mode transmissive liquid crystal display device using an element (hereinafter referred to as “TFT”) will be described as an example. As shown in FIG. 1, the transmissive liquid crystal display device 1 of the present embodiment is mainly configured by a liquid crystal panel 2 and a backlight 3. The liquid crystal panel 2 and the backlight 3 are arranged so as to overlap in plan view, and only the liquid crystal panel 2 is shown in FIG.

In this liquid crystal panel 2, a TFT array substrate (first substrate) 4 and a color filter substrate (second substrate) 5 are bonded together by a sealing material 7, and a liquid crystal layer 6 is formed in a region partitioned by the sealing material 7. Is enclosed. A part of the sealing material 7 is provided with an injection port 7a for injecting liquid crystal, and this injection port 7a is sealed with a sealing material 7b. A light shielding film (peripheral parting) 8 made of a light shielding material is provided in a region inside the sealing material 7. An area inside the peripheral parting 8 is a display area 9 for displaying an image, a moving image, or the like. The display area 9 is provided with a plurality of sub-pixels 10 in a matrix. A region between the plurality of sub-pixels 10 is an inter-pixel region 11.

The peripheral edge portion of the TFT array substrate 4 is an overhanging region protruding from the color filter substrate 5. A scanning line driving circuit 12 for generating a scanning signal is formed on the left side and the right side in the drawing in the overhang region. On the upper side of FIG. 1, a wiring 14 that connects the left and right scanning line driving circuits 12 is routed. A data line driving circuit 13 for generating a data signal and a connection terminal 15 for connecting to an external circuit or the like are formed on the lower side of the center of FIG. In a region between the scanning line driving circuit 12 and a connection terminal for connecting to an external circuit or the like, a wiring 16 for connecting the two is formed. In addition, an inter-substrate conductive material 17 for electrical connection between the TFT array substrate 4 and the color filter substrate 5 is provided at each corner of the color filter substrate 5.

As shown in FIG. 2, the TFT array substrate 4 includes a base material 4a formed of a material having high translucency such as glass and quartz, and a pixel electrode 48 formed on the liquid crystal side of the base material 4a. The switching element 47 for supplying an electric signal to the pixel electrode 48, the alignment film 46 formed so as to cover the pixel electrode 48 and the switching element 47, and the outside of the substrate 4a (on the side opposite to the liquid crystal layer 6) It is composed mainly of the attached polarizing plate 49. An interlayer film may be formed between the base material 4a and the pixel electrode 48.

The pixel electrode 48 is disposed in a region overlapping the subpixel 10 in plan view, for example, ITO.
It is made of a transparent conductive material such as (Indium Tin Oxide). Switching element 4
7 is arranged in the inter-pixel region 11 and is provided to correspond to the pixel electrode 48 on a one-to-one basis. As described above, the orientation of the liquid crystal layer 6 can be regulated independently for each sub-pixel 10. The switching element 47 is an element made of TFT, for example, and is connected to a scanning line and a data line (not shown). The alignment film 46 is provided at the interface with the liquid crystal layer 6 and regulates the alignment of liquid crystal molecules constituting the liquid crystal layer 6.

On the other hand, the color filter substrate 5 is mainly composed of a base material 5a, a color filter layer 50, a light shielding film 51, a common electrode 58, and an alignment film 56. The base material 5a of the color filter substrate 5 is a rectangular plate-like member formed of a highly light-transmitting material such as glass or quartz, for example, like the base material 4a of the TFT array substrate 4. The color filter layer 50 is a color layer provided on the liquid crystal layer 6 side of the substrate 5a so as to overlap the subpixel 10 in plan view. The color filter layer 50 includes, for example, three color layers, a red layer 50R, a green layer 50G, and a blue layer 50B.

One sub-pixel 10 is provided with a color filter layer 50 of one of the three colors, and the red layer 50R, the green layer 50G, and the blue layer 50B are arranged in adjacent columns. Three sub-pixels 10 having color filter layers 50 adjacent to each other and having different color layers form a set, and 1
A pixel (one pixel) is configured. The light shielding film 51 is a light shielding member made of a material capable of reflecting or absorbing light, and is provided around the color filter layer 50.

The common electrode 58 is an electrode formed of a transparent conductive material such as ITO, for example,
It is provided so as to cover the color filter layer 50 and the light shielding film 51. The alignment film 56 is provided at the interface with the liquid crystal layer 6, and regulates the alignment of liquid crystal molecules constituting the liquid crystal layer 6 with the alignment film 46.

The liquid crystal layer 6 is made of liquid crystal molecules such as a fluorine-based liquid crystal compound and a non-fluorine-based liquid crystal compound, and is in contact with both the alignment film 46 on the TFT array substrate 4 side and the alignment film 56 on the color filter substrate 5 side. So as to be sandwiched between both substrates. The alignment of the liquid crystal molecules is regulated by the alignment film 46 and the alignment film 56 so as to block light (normally black mode) when no voltage is applied. Here, a vertical alignment film is used for the alignment film 46 and the alignment film 56, and a liquid crystal compound having a negative dielectric anisotropy is used.

The transmissive liquid crystal display device 1 operates as a VA mode transmissive liquid crystal display device so that liquid crystal molecules are in a vertical state when an electric field is not applied between the pixel electrode 48 and the common electrode 58. Orient and do not transmit light. However, when an electric field is applied between the pixel electrode 48 and the common electrode 58, the liquid crystal molecules are tilted so that light is transmitted. Accordingly, the transmissive liquid crystal display device 1 operates as a normally black mode transmissive liquid crystal display device.

Here, a specific configuration for one sub-pixel at a position corresponding to a pattern to be displayed when the transmissive liquid crystal display device according to the embodiment of the present invention is not driven will be described with reference to FIG. In this embodiment, the light reflection layer 45 is partially formed on the surface of the pixel electrode 48 at a position corresponding to the pattern to be displayed, and only the pixel electrode 48 is formed in one sub-pixel 10. Region 10
a and the light reflection region 10b in which the light reflection layer 45 is formed.

The light reflecting layer 45 is a metal layer made of, for example, aluminum, and reflects light toward the color filter substrate 5 side. The light reflection layer 45 is formed on the liquid crystal layer 6 side of the pixel electrode 48 and is provided at an arbitrary ratio in a region in the sub-pixel 10 in a plan view. In FIG. It is provided in an area that occupies almost half of the area. This region is a light reflection region 10b. The region where the light reflection layer 45 is not provided is a light transmission region 10 a that transmits light from the backlight 3 to the liquid crystal layer 6 and the color filter substrate 5. The surface of the light reflecting layer 45 (the surface on the liquid crystal layer 6 side) is a reflecting surface, and an uneven pattern is formed on the reflecting surface. In addition, the thickness of each light reflection layer 45 is constant. Here, an example in which the light reflecting layer 45 is formed on the surface of the pixel electrode 48 is shown, but the light reflecting layer 45 is also shown.
May be formed under the pixel electrode 48.

This configuration is similar to that of a conventional transflective liquid crystal display panel. That is, in the conventional transflective liquid crystal display device, as shown in FIG. 4, the light reflecting layer 45 is formed on a part of all the sub-pixels 10, and the light transmitting region 10a, the light reflecting region 10b, and the retardation are formed. In order to be the same, the transparent layer 58a of the insulating film is formed on the color filter substrate 5 in the light reflection region 10b.
Is formed. The cell gap t1 of the light transmission region 10a is set to be approximately twice the cell gap t2 of the light reflection region 10b.

However, since the transmissive liquid crystal display device 1 of the present invention does not display as a reflective type, it is not necessary to consider the difference in retardation between the light reflection region 10b and the light transmission region 10a. Therefore, in the transmissive liquid crystal display device 1 of the present invention, such a transparent layer 58a of the insulating film is not formed, and the cell gap of the light transmission region 10a and the cell gap of the light reflection region 10b are the same. Yes. With such a configuration, it is possible to reduce the process for forming the transparent layer 58a of the insulating film, which is necessary particularly in the conventional transflective liquid crystal display device. And
In the transmissive liquid crystal display device 1 of the present invention, the light reflection region 10b is operated in a normally white mode. In order to operate only the light reflection region 10b in the normally white mode, it can be easily performed by changing the polarization directions of the polarizing plates 49 and 59 at positions corresponding to the light reflection region 10b.

Then, while the transmissive liquid crystal display device 1 is driven and an image is displayed, the image display is normally performed in the light transmission region 10a, but the light reflection region 10b does not transmit light.
Does not substantially affect the image display. However, when the transmissive liquid crystal display device 1 is in a non-driving state, the light transmission region 10a does not transmit light and thus displays black, but the light reflection region 10b transmits external light, so that the incident light from the outside A part of the light is transmitted and reflected by the light reflecting layer 45, and this reflected light is emitted to the outside. Therefore, a predetermined pattern can be displayed when the transmissive liquid crystal display device 1 is not driven by forming a normally white mode light reflecting region 10b corresponding to a pattern to be displayed in the display region. become able to.

An example of the state of the display area 9 when the power of the transmissive liquid crystal display device 1 configured as described above is turned off is shown in FIG. FIG. 5 shows a display state of the display region 9 in a state in which the power source of the transmissive liquid crystal display device 1 is turned off, that is, in a non-driving state in which no voltage is applied to the liquid crystal layer 6 between the TFT array substrate 4 and the color filter substrate 5. Indicates. As described above, when the user of the transmissive liquid crystal display device 1 observes the display area 9 when the power is off, the reflected light of the incident light from the outside in the light reflection area 10b can be visually recognized. An arbitrary identification pattern formed in advance with respect to the pattern can be observed. In this embodiment, as shown in FIG.
A symbol composed of ABCDE is displayed as the identification pattern 70.

That is, normally, when the transmissive liquid crystal display device 1 is not driven, there is no light transmitted from the backlight 3 through the sub-pixels in the display area, so that black display is performed and the light reflection layer 45 reflects in the light reflection area 10b. Only the light from the outside light is observed by the observer. At this time, if there is a normally white light reflection region 10b in a part of the sub-pixel 10 corresponding to the identification pattern 70, the reflected light from the light reflection region 10b is observed by the observer. The identification pattern 70 appears on the background pattern 60 and is observed.

Therefore, in the normally black transmissive liquid crystal display device 1, a normally white light reflecting region 10b is formed in a part of the sub-pixel 10 corresponding to the identification pattern to be displayed when the power is turned off. Thus, even when the transmissive liquid crystal display device 1 is in a non-driven state, the identification pattern 70 can be displayed.

Note that when the normally white light reflection region 10b is formed in the light reflection region 10b of the sub-pixel on which the color filter layer of a specific color is formed, reflected light of the specific color is generated. Therefore, by appropriately selecting the sub-pixel 10 in which the normally white light reflection region 10b is formed in one pixel, reflected light of a desired color can be generated.
Furthermore, when the color filter layer in the light reflection region 10b of the sub-pixel 10 where the normally white light reflection region 10b is formed is removed, achromatic reflected light can be generated, and the pattern is displayed in black and white. It is also possible to make it.

Further, when the power supply of the transmissive liquid crystal display device 1 is turned on, the light from the backlight 3 is the light of the subpixel in which the light reflection region 10b is not formed and the subpixel in which the light reflection region 10b is formed. Various displays such as a normal moving image and a still image can be performed by the light emitted through the transmission region 10a. At this time, the light emitted through the light reflection region 10b by the external light is very weak compared to the light emitted through the light transmission region 10a, and therefore the identification mark is hardly observed by the user. Absent.

Moreover, although the example which displayed the alphabet as the identification pattern 70 was shown in this embodiment, it is not limited to such characters, such as an alphabet. According to the present invention, not only characters but also various patterns including corporate logo marks, floral patterns, checkered patterns, etc. can be observed by the user with the transmissive liquid crystal display device 1 turned off. It becomes. As described above, in the transmissive liquid crystal display device 1 according to the present invention, the arbitrary identification pattern 70 can be displayed when the power is turned off, so that the power consumption can be greatly reduced.

In the above-described embodiment, an example in which the light reflection region 10b in which the light reflection layer 45 is formed only on the sub-pixel corresponding to the pattern to be displayed in the display region when the power is turned off has been described. It is also possible to form the light reflecting region 10b in which the light reflecting layer 45 is formed on the pixel. However, it is necessary to operate the light reflection area 10b other than the sub-pixel corresponding to the pattern to be displayed in the display area when the power is turned off in the normally black mode. When the light reflection regions 10b are formed in all the sub-pixels 10 in this way, the transmittance of the light reflection regions of the sub-pixels corresponding to the pattern to be displayed in the display region and the other pixels can be matched. Display image quality is improved. In addition, since the sub-pixel corresponding to the pattern to be displayed in the display area when the power is turned off is set to the normally white mode, the display of the light reflecting area of the other sub-pixel is set to the normally black mode. The pattern desired to be displayed in the area can be clearly seen.

Although the VA mode has been described as the above embodiment, the present invention is equally applicable to a normally black mode transmissive liquid crystal display device. As other transmission type liquid crystal display devices of such a normally black mode, for example, by appropriately combining polarizing plates in a transmission type liquid crystal display device of TN mode, or a lateral electric field mode such as IPS mode or FFS mode. Transmissive liquid crystal display device.

Heretofore, an example of a transmissive liquid crystal display device has been described as an embodiment of the present invention. Such a transmissive liquid crystal display device of the present invention can be used for electronic devices such as personal computers, mobile phones, and portable information terminals. Among these, an example in which the transmissive liquid crystal display device 71 is used in the personal computer 70 is shown in FIG.
An example used for 5 is shown in FIG. 6B. However, since the basic configuration of the personal computer 70 and the mobile phone 75 is well known to those skilled in the art, a detailed description thereof will be omitted.

It is a figure which shows the whole structure of the transmissive liquid crystal display device common to 1st and 2nd embodiment. It is a schematic cross section along the II-II line of FIG. FIG. 3 is a schematic cross-sectional view of one sub pixel at a position corresponding to a pattern to be displayed according to the first embodiment. It is a schematic cross section for one sub pixel of the position corresponding to the pattern which wants to be displayed concerning a 2nd embodiment. FIG. 2 is a plan view showing a display state when the transmissive liquid crystal display device of FIG. 1 is not driven. 6A is a diagram showing a personal computer equipped with the liquid crystal display device of the present invention, and FIG. 6B is a diagram showing a mobile phone equipped with the liquid crystal display device of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Transmission type liquid crystal display device 2 ... Liquid crystal panel 3 ... Backlight 4 ... TFT array substrate 5 ... Color filter substrate 6 ... Liquid crystal layer 9 ... Display area 10 ... Subpixel 10a ... Light transmission area 10b ... Light reflection area 45 ... Light Reflective layer 50 ... Color filter layer 50R ... Red layer 50G ... Green layer 50B ... Blue layer 60 ... Background pattern 70 ... Identification pattern

Claims (6)

A transmissive liquid crystal display device in which a plurality of sub-pixels having a light transmissive region are arranged in a matrix to form a display region,
A light reflection layer is partially formed in the region of the sub-pixel, and the cell gap is set to be substantially equal between the region where the light reflection layer is provided and the light transmission region,
In the non-driven state, the light reflecting layer formed in the plurality of sub-pixel regions performs a reflective display in which a predetermined pattern is formed in the display region. 2. The transmissive liquid crystal display device according to claim 1, wherein the light transmission region operates in a normally black mode, and the region provided with the light reflection layer operates in a normally white mode.   The light reflection area is formed in all the sub-pixels of the display area, and the light reflection areas other than the sub-pixel corresponding to the pattern to be displayed in the display area operate in a normally black mode. The transmissive liquid crystal display device according to claim 2.   The transmissive liquid crystal display device according to claim 2, wherein the transmissive liquid crystal display device in which the light transmissive region operates in a normally black mode is driven in a vertical alignment mode or a lateral electric field mode. .   2. The color filter layer in the light reflection region of the sub-pixel corresponding to a pattern desired to be displayed in the display region when the transmissive liquid crystal display device is in a non-driving state is removed. The transmissive liquid crystal display device according to any one of claims 1 to 4.   An electronic apparatus comprising the transmissive liquid crystal display device according to any one of claims 1 to 5.

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