JP2003177383A - Liquid crystal display unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display unit which can prevent liquid applied onto the display surface of a liquid crystal display panel from entering the liquid crystal display unit to reach even a wiring part formed at the circumferential part of a glass substrate. <P>SOLUTION: The liquid crystal display panel having a 1st substrate, a 2nd substrate, and a liquid crystal layer sandwiched between the 1st and 2nd substrates is provided and an upper case which has an opening part for exposing a display area of the liquid crystal display panel and comprises a frame body covering the circumference of the liquid crystal display panel is provided, and the liquid crystal display panel uses one main surface of the 1st substrate as the display surface of the liquid crystal display panel. The liquid crystal display unit has a polarizing plate provided on the display surface of the 1st substrate; and the polarizing plate extends from the flank of the 1st substrate to the outside so that its front end part is positioned in an area other than the display area of the upper case. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device used in a personal computer, a workstation, etc., and more particularly to a technique effectively applied to narrowing a frame.

[0002]

2. Description of the Related Art Liquid crystal display devices are widely used as display devices for personal computers, monitors, televisions and the like. This liquid crystal display device includes a pair of substrates, a liquid crystal layer sandwiched between the pair of substrates (a layer made of a liquid crystal composition sealed between the pair of substrates), and at least one of the pair of substrates. A liquid crystal display panel having an electrode group formed on a main surface facing the liquid crystal layer. In the display operation of this liquid crystal display device, the electric field applied in the liquid crystal layer is controlled by the electrode group according to the information to be displayed, and the light transmittance of the liquid crystal layer is modulated. In the main surface of the substrate of the liquid crystal display panel, a region where the light transmittance of the liquid crystal layer is modulated (a region where the display operation is performed) is called an "effective display region". The liquid crystal display device is roughly classified into an active matrix type and a passive matrix type according to the behavior of liquid crystal molecules in the liquid crystal layer in the display operation and the electrode structure in the liquid crystal display panel adapted to the behavior. To be done. The former liquid crystal display device has a feature that an active element is formed in each pixel forming the above-mentioned effective display area.
Products using FT (also called thin film transistor) as an active element have become widespread. The liquid crystal display panel using this thin film transistor is also called a TFT panel. As a liquid crystal display panel belonging to the passive matrix type, for example, an STN (Super Twisted Nematic) type is widely used.

Generally, the liquid crystal display device is used by being incorporated in a personal computer, a monitor, a television or the like. Therefore, the liquid crystal display device is supplied as a "liquid crystal display module" to the assembly process of a personal computer, a monitor, or a television. These liquid crystal display modules are configured by a liquid crystal display panel around which a drive circuit unit is arranged, a backlight that illuminates the liquid crystal display panel, and an upper case that covers the liquid crystal display panel and the backlight. . For example, in a TFT type liquid crystal display module, a filter substrate on which a color filter is formed, a pixel electrode, and a thin film transistor (TF).
The TFT substrate on which T) is formed is superposed so that the surfaces on which the alignment films are formed face each other by the sealing material formed on the peripheral portions of both substrates, and liquid crystal is injected between both substrates.
A liquid crystal display panel is formed by sealing. Note that such a technique is described in, for example, Japanese Patent Laid-Open No. 5-257142.

[0004]

As the above-mentioned liquid crystal display panel, there is known a liquid crystal display panel of a type in which a semiconductor chip is directly mounted on a peripheral portion of a glass substrate of a TFT substrate. On the other hand, the liquid crystal display panel is covered by a frame-shaped upper case having a display window, and the display window region of the upper case constitutes the display region of the liquid crystal display module.
The area around the display window of the upper case is usually called a frame area. 2. Description of the Related Art In recent years, in notebook personal computers and the like, the display screen has been remarkably increased in size without changing the external dimensions. Along with this, in the liquid crystal display module, the external dimensions are unchanged, and the display area is enlarged. However, in the liquid crystal display module, the external dimensions are unchanged and the display area is increased. It is necessary to make the frame area thus formed narrower (so-called narrower frame). However, if the frame area of the upper case becomes smaller due to the narrowing of the frame as described above, when liquid such as water is inadvertently splashed on the display surface of the liquid crystal display panel, this liquid becomes It is assumed that the liquid will pass through the liquid crystal display panel and enter the inside of the liquid crystal display module. Then, a liquid such as water penetrates into the inside of the liquid crystal display module through the space between the upper case and the liquid crystal display panel, and the wiring portion of the semiconductor chip (IC) formed around the glass substrate of the TFT substrate. However, there is a problem that electrolytic corrosion occurs in the wiring part when reaching the point.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a liquid crystal display device in which the liquid applied to the display surface of the liquid crystal display panel is a liquid crystal display. It is an object of the present invention to provide a technique capable of preventing an invasion into the inside of a device and reaching a wiring portion formed in a peripheral portion of a glass substrate. The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[0006]

Among the inventions disclosed in the present application, a brief description will be given to the outline of typical ones.
It is as follows. That is, the present invention provides a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate, and the liquid crystal display panel. And an upper case having a frame body that covers the periphery of the liquid crystal display panel, the liquid crystal having one main surface of the first substrate as a display surface of the liquid crystal display panel. A display device, comprising a polarizing plate provided on the display surface of the first substrate, wherein at least one side of the polarizing plate has a tip portion located in a region other than the display region of the upper case. , Extending from the side surface of the first substrate to the outside.

In a preferred embodiment of the present invention, the second substrate has a semiconductor chip mounted on a peripheral portion of at least one side of the main surface on the display surface side, and the polarizing plate comprises:
The side of the second substrate opposite to the side on which the semiconductor chip is mounted extends from the side surface of the first substrate to the outside so that the tip portion is located in a region other than the display region of the upper case. It is characterized by doing. In a preferred embodiment of the present invention, the semiconductor chip is mounted on the periphery of two adjacent sides of the main surface of the second substrate on the display surface side, and the polarizing plate is provided on the second substrate. The first side is arranged such that the side opposite to the side on which the semiconductor chip is provided is located in a region other than the display region of the upper case.
Is characterized in that it extends from the side surface of the substrate to the outside.

In a preferred embodiment of the present invention, there is provided a circuit board on which a semiconductor chip is mounted, which is mounted on a peripheral portion of at least one side of the second board, and the polarizing plate is provided on the second board. The side opposite to the side on which the circuit board is mounted extends from the side surface of the first board to the outside so that the tip portion is located in a region other than the display region of the upper case. And In a preferred embodiment of the present invention, the circuit board is mounted on a peripheral portion of two adjacent sides of the second board, and the polarizing plate is mounted on the circuit board of the second board. It is characterized in that a side facing the side extends from the side surface of the first substrate to the outside so that the tip portion is located in a region other than the display region of the upper case.

According to the present invention, the side of the polarizing plate on the display surface side of the liquid crystal display panel facing the side of the second substrate on which the semiconductor chip is mounted (or the side on which the circuit board is mounted) is Since the tip portion is arranged to extend from the side surface of the second substrate to the outside so that the tip portion is located in the area other than the display area of the upper case, for example, the liquid applied to the display surface of the liquid crystal display panel is Even if the liquid crystal display device enters the inside of the liquid crystal display device, it can be prevented from reaching the wiring portion formed in the peripheral portion of the glass substrate.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings for explaining the embodiments, the same reference numerals are given to those having the same function, and the repeated description thereof will be omitted. First Embodiment <Basic Configuration of TFT Type Liquid Crystal Display Module to which the Present Invention is Applied> FIG. 1 is an exploded perspective view showing a schematic configuration of a TFT type liquid crystal display module to which the present invention is applied. The liquid crystal display module shown in FIG. 1 is an active matrix type liquid crystal in which its driving element (semiconductor chip) is mounted on one of a pair of substrates that constitute a liquid crystal display panel by a flip chip attachment (FCA) type mounting method. It is a display module. The main components are as follows. The liquid crystal display module shown in FIG. 1 includes a frame-shaped upper case 4 made of a metal plate, a liquid crystal display panel 5, and a backlight.

The liquid crystal display panel 5 is shown as an assembled liquid crystal display panel 5 with a drive circuit board, and includes a TFT substrate on which pixel electrodes, thin film transistors and the like are formed, and a filter substrate on which counter electrodes, color filters and the like are formed. Are overlapped with each other with a predetermined gap, and both substrates are bonded together by a seal material provided in the shape of a frame in the vicinity of the peripheral portion between the both substrates, and both substrates are inserted from a liquid crystal sealing port provided in a part of the seal material. Liquid crystal is enclosed and sealed inside the sealing material between them, and polarizing plates are attached to the outside of both substrates. T
A plurality of drain drivers and gate drivers each composed of a semiconductor chip (IC) are mounted on the glass substrate of the FT substrate. The drain driver is supplied with drive power, display data and control signals via the flexible printed wiring board 1, and the gate driver is supplied with drive power and control signals via the flexible printed wiring board 2. . These flexible printed wiring boards (1, 2) are connected to an interface circuit board (including an integrated circuit element such as a timing converter) 3 provided on the lower surface of the mold 14.

In the liquid crystal display module shown in FIG. 1, the flexible printed wiring board 1 is used for a drain driving IC,
The flexible printed wiring boards 2 are used for gate drive ICs, respectively. An upper case (also referred to as a shield case, a frame, or a metal frame) 4 made of a metal plate is provided on the upper side of the assembled liquid crystal display panel 5.
However, the display window is arranged so as to expose the main surface corresponding to the effective display area of the liquid crystal display panel 5. Therefore, the upper case 4 has a frame-shaped planar structure. Further, a housing (not shown) provided with a display window of a personal computer or the like is covered on the upper side thereof. In the example of the personal computer, the user looks into the liquid crystal display panel 5 shown in FIG. 1 from the upper surface side and recognizes the image displayed in the effective display area.

In FIG. 1, below the assembled liquid crystal display panel 5, an optical sheet group (upper diffusion sheet 6, two prism sheets 7, and The lower diffusion sheet 8) is arranged. As shown in FIG. 1, the optical sheet group is laminated by arranging an upper diffusion sheet 6 and a lower diffusion sheet 8 above and below two prism sheets 7. The optical sheet group is molded at one end with a protrusion (also called the lower case).
It is fixed to the side wall formed on the periphery of 14. Mold 1
In FIG. 4, the light guide 9 is housed on the lower surface of the lower diffusion sheet 8 so that the upper surface thereof faces, and the reflection sheet 10 is arranged below the light guide 9. The mold 14 is often integrally formed of white synthetic resin or the like,
Cold cathode fluorescent lamp 16, lamp cable (18, 19)
Is fixed to the rubber bush 11 by this. A connector 12 for connecting to an inverter circuit is provided at one end of each of the lamp cables (18, 19), and the mold 1
Electric power is supplied to the cold cathode fluorescent lamp 16 from an inverter circuit (not shown) provided on the lower surface of 4. Cold cathode fluorescent lamp 16
When a cold cathode tube is used as the lamp, the lamp cable 18 connected to the high-voltage side electrode is made shorter than the lamp cable 19 connected to the low-voltage side electrode, so that fluctuations and loss of electric power of the mold 14 can be suppressed. Layout is designed. A groove for guiding a cable is provided on the side wall of the mold 14, and the lamp cable 19 connected to the low-voltage side electrode of the cold cathode fluorescent lamp 16 is housed in this groove.

As described above, the backlight of the liquid crystal display module shown in FIG. 1 includes a cold cathode fluorescent lamp 16, a wedge-shaped (sideways trapezoidal) light guide 9, a diffusion sheet (6, 8), a prism sheet 7, The reflection sheet 10 and the order shown in FIG.
It has a side wall and is fitted in a frame-shaped mold 14. Liquid crystal display panel 5 assembled
The liquid crystal display module is completed by sandwiching and fixing the above with the upper case 4 and the backlight. That is, FIG.
The liquid crystal display module shown in (1) is configured by housing a liquid crystal display panel 5 on which a plurality of drain drivers and gate drivers are mounted between an upper case 4 having a display window and a backlight. The area of the display window of the upper case 4 constitutes the display area of the liquid crystal display module (LCM), and the area other than this display area, that is, the area around the display window of the upper case 4 is called a normal frame. .

<Characteristics of the TFT type liquid crystal display module according to the first embodiment of the present invention> FIG. 2 shows the above-mentioned upper case 4 and liquid crystal display panel 5 in the TFT type liquid crystal display module according to the embodiment of the present invention. FIG. 5 is a plan view showing a state in which the backlight and the backlight are assembled. FIG. 3 is a cross-sectional view showing a cross-sectional structure taken along the line AA ′ shown in FIG.
FIG. 3 is a sectional view showing a sectional structure taken along a line BB ′ shown in FIG. 2. As shown in FIGS. 3 and 4, an upper polarizing plate 112 is provided on the glass substrate 102 which is a filter substrate constituting the liquid crystal display panel 5, and a lower polarizing plate is provided on the glass substrate 101 which is a TFT substrate. Although 111 is provided, in this embodiment, the area of the upper polarizing plate 112 is made larger than the area of the display surface of the glass substrate 102. In FIG. 4, 30 is a light-shielding tape and 31 is a spacer. As a result, in the present embodiment, as shown in FIG. 5, in the upper polarizing plate 112, the side opposite to the side of the glass substrate 101 on which the semiconductor chip (IC) is mounted extends from the side surface of the glass substrate 102 to the outside. It is made to extend. Note that FIG. 5 shows the upper polarizing plate 112 and the glass substrate 10 of the filter substrate in the liquid crystal display panel 5 of the present embodiment.
2. Glass substrate 101 of TFT substrate and lower polarizing plate 11
It is a figure for demonstrating the magnitude | size of 1.

FIGS. 6 and 7 are sectional views showing the sectional structure of a conventional liquid crystal display module, and FIG. 6 shows A shown in FIG.
7 is a cross-sectional view showing a cross-sectional structure at the same position as the cutting line -A ', FIG.
FIG. 3 is a cross-sectional view showing a cross-sectional structure at the same location as the BB ′ cutting line shown in FIG. 2. In the conventional liquid crystal display module shown in FIGS. 6 and 7, the same components as those of the liquid crystal display module of the present embodiment are designated by the same reference numerals as those in FIGS. 3 and 4, and detailed description thereof will be omitted. . In the liquid crystal display panel 5 of the conventional liquid crystal display module, the upper polarizing plate 112 and the lower polarizing plate 111 have substantially the same area, that is, the upper polarizing plate 112 is
It has the same size as the lower polarizing plate 111 shown in FIG. Therefore, in the conventional liquid crystal display panel 5, if a liquid such as water is inadvertently applied to the display surface of the liquid crystal display panel 5, the liquid will pass between the upper case 4 and the liquid crystal display panel 5. The semiconductor chip (I) formed on the periphery of the glass substrate 101 by penetrating inside the liquid crystal display module.
There is a problem that the wiring portion reaches the wiring portion of C) and electrolytic corrosion occurs in the wiring portion. Then, this problem becomes more remarkable as the frame area of the upper case 4 becomes smaller due to the narrower frame.

However, in this embodiment, the upper polarizing plate 112 is the semiconductor chip (IC) of the glass substrate 101.
The side opposite to the side where the
It is arranged to extend from the side surface of the glass substrate 102 to the outside so as to be located on the lower side (area other than the display area). That is, in the present embodiment, in the frame region of the upper case 4, between the upper case 4 and the liquid crystal display panel 5,
An upper polarizing plate 112 is arranged, and the upper polarizing plate 112 covers the wiring portion of the semiconductor chip (IC) formed in the peripheral portion of the glass substrate 101. for that reason,
In the present embodiment, even if liquid such as water is inadvertently poured onto the display surface of the liquid crystal display panel 5, the liquid such as water will pass between the upper case 4 and the liquid crystal display panel 5. It is difficult for the liquid crystal display module to enter the inside of the liquid crystal display module.
Even if it penetrates into the inside of the liquid crystal display module through the space between and, it does not reach the wiring portion of the semiconductor chip (IC) formed in the peripheral portion of the glass substrate 101.
It is possible to prevent electrolytic corrosion from occurring in the wiring portion.

[Second Embodiment] <Characteristics of a TFT type liquid crystal display module according to a second embodiment of the present invention> In this embodiment, a semiconductor chip (IC) constituting a drain driver and a gate driver is a liquid crystal display. Tape carrier (TCP) around the panel 5
This is an embodiment in which the present invention is applied to a liquid crystal display module mounted by a method. FIG. 8 shows a glass substrate (101, 101) that constitutes the liquid crystal display panel 5 in the present embodiment.
102), an upper deflecting plate 112, and a lower deflecting plate 111. FIG. FIG. 9 is a sectional view showing a schematic configuration of the liquid crystal display module of the present embodiment,
FIG. 9 is a schematic sectional view showing a sectional structure of a portion corresponding to the same portion as FIG. In addition, in the liquid crystal display module of the present embodiment shown in FIG. 9, the same components as the liquid crystal display module of the above-described embodiments are given the same reference numerals as those in FIGS. 3 and 4, and detailed description thereof will be omitted. To do.

As shown in FIG. 8, drive circuit boards (PCB1, PCB2) are mounted around the liquid crystal display panel 5. The drive circuit boards (PCB1 and PCB2) are provided along the sides of the liquid crystal display panel 5, and the drive circuit boards (PCB1 and PCB2) are connected to the flat cable 3 respectively.
2 electrically connected. Drive circuit board (PCB
1, PCB2) are mounted with electronic components such as a semiconductor chip (IC) and a capacitor mounted by a tape carrier (TCP) method. As shown in FIGS. 8 and 9, in the present embodiment, the semiconductor chip (IC) is mounted (or mounted) on the base film (BF), and the other end of the base film (BF) has an interface circuit. It is connected to the substrate 3, and one end thereof is connected to the wiring portion in the peripheral portion of the glass substrate 101 of the TFT substrate.

Also in this embodiment, the upper polarizing plate 112.
Is from the side surface of the glass substrate 102 so that the side of the glass substrate 101 opposite to the side on which the semiconductor chip (IC) is mounted is positioned below the upper case 4 (a region other than the display region). It is designed to extend to the outside. That is, in the frame area of the upper case 4, the upper polarizing plate 112 is arranged between the upper case 4 and the liquid crystal display panel 5, and the semiconductor chip formed on the peripheral portion of the glass substrate 101 by the upper polarizing plate 112. The wiring part of the (IC) is covered. Therefore, also in this embodiment,
The liquid such as water is inadvertently poured onto the display surface of the liquid crystal display panel 5 so that the liquid such as water is absorbed into the upper case 4
It becomes difficult for the liquid to pass through between the liquid crystal display panel 5 and the liquid crystal display panel 5 and enter the inside of the liquid crystal display module.
A base film (BF) formed on the peripheral portion of the glass substrate 101 even if it penetrates into the inside of the liquid crystal display module through the space between the upper case 4 and the liquid crystal display panel 5.
Since it does not reach the wiring part connected to the terminal part, it is possible to prevent electrolytic corrosion from occurring in the wiring part.

It should be noted that extending the upper polarizing plate from the side surface of the glass substrate to the outer side is disclosed in, for example, Japanese Patent Laid-Open No. 10-549.
No. 92 publication. However, in the liquid crystal display panel described in the above-mentioned publication (Japanese Patent Laid-Open No. 10-54992), the thickness of the resin that protects the connection between the electrode at the end of the panel and the flexible printed circuit board becomes large, and the liquid crystal display panel The upper polarizing plate is extended from the side surface of the glass substrate to the outer side in order to form a space filled with the resin for the purpose of preventing a convex portion thicker than the thickness from being formed. On the other hand, according to the present invention, even if the liquid applied to the display surface of the liquid crystal display panel 5 enters the inside of the liquid crystal display module, it does not reach the wiring portion formed in the peripheral portion of the glass substrate 101. The purpose is to prevent this, and the present invention and the liquid crystal display panel described in the above-mentioned publication (JP-A-10-54992) have different technical ideas.

If (1) it is not necessary to fill the resin, or (2) when the resin is applied thinly, a convex portion thicker than the thickness of the liquid crystal display panel cannot be formed, so that the space for filling the resin is set. It is apparent that it is not necessary to extend the upper polarizing plate from the side surface of the glass substrate to the outer side in order to form it. Therefore, the aforementioned publication (JP-A-10-54992).
No.) does not disclose that the upper polarizing plate extends from the side surface of the glass substrate to the outer side in the cases (1) and (2). Moreover, the aforementioned publication (JP-A-10-5)
No. 4992), it is necessary to prevent the liquid applied to the display surface of the liquid crystal display panel 5 from reaching the wiring portion formed in the peripheral portion of the glass substrate 101 even if the liquid enters the inside of the liquid crystal display module. Is not disclosed. In addition,
In the above-described embodiment, an embodiment in which the present invention is applied to a TFT type liquid crystal display module has been mainly described, but the present invention is not limited to this, and the present invention is an STN type liquid crystal display module. Needless to say, it is also applicable to. Although the invention made by the present inventor has been specifically described based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Of course,

[0023]

The effects obtained by the typical ones of the inventions disclosed in the present application will be briefly described as follows. According to the liquid crystal display device of the present invention, even if the liquid applied to the display surface of the liquid crystal display panel enters the inside of the liquid crystal display device, it prevents the liquid from reaching the wiring portion formed in the peripheral portion of the glass substrate. It becomes possible to do.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a schematic configuration of a TFT type liquid crystal display module to which the present invention is applied.

FIG. 2 is a plan view showing a state in which an upper case, a liquid crystal display panel, and a backlight are assembled in the TFT type liquid crystal display module according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a cross-sectional structure taken along the line AA ′ shown in FIG.

4 is a cross-sectional view showing a cross-sectional structure taken along the line BB ′ shown in FIG.

FIG. 5 is a diagram for explaining sizes of an upper polarizing plate, a glass substrate of a filter substrate, a glass substrate of a TFT substrate, and a lower polarizing plate in the liquid crystal display panel according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a cross-sectional structure of the conventional TFT type liquid crystal display module, taken along the line AA ′ shown in FIG.

7 is a cross-sectional view showing a cross-sectional structure of the conventional TFT type liquid crystal display module, taken along the same line as the BB ′ cutting line shown in FIG. 2.

FIG. 8 is a diagram for explaining sizes of an upper polarizing plate, a glass substrate of a filter substrate, a glass substrate of a TFT substrate, and a lower polarizing plate in the liquid crystal display panel according to the second embodiment of the present invention.

FIG. 9 is a schematic cross-sectional view showing a cross-sectional structure of a portion corresponding to the same portion as FIG. 4 in the TFT type liquid crystal display module according to the second embodiment of the present invention.

[Explanation of symbols]

1, 2 ... Flexible printed wiring board, 3 ... Interface circuit board, 4 ... Upper case, 5 ... Liquid crystal display panel, 6, 8 ... Diffusion sheet, 7 ... Prism sheet, 9 ... Light guide body, 10 ... Reflection sheet, 11 ... rubber bush, 12 ...
Connector, 14 ... Mold, 16 ... Cold cathode fluorescent lamp, 1
8, 19 ... Lamp cable, 30 ... Shading tape, 31
... Spacer, 32 ... Flat cable, 101, 102
... Glass substrate, 111, 112 ... Polarizing plate, BF ... Base film, PCB1, PCB2 ... Driving circuit board.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2H089 HA40 JA10 QA07 QA16 TA01                       TA07 TA15 TA18 TA20                 2H091 FA08X FA08Z FA23Z FA42Z                       GA01 GA11 LA06 LA30                 2H092 GA32 GA40 GA51 GA60 NA17                       NA25 PA06 PA11 PA13                 5C094 AA38 AA48 BA03 BA43 CA19                       CA24 DA09 DA12 DB02 ED03                       ED14 FA01 GB01                 5G435 AA13 AA14 BB12 BB15 CC09                       EE05 EE13 EE25 EE36 EE37                       EE41 FF05 KK02

Claims (5)

[Claims] 1. A first substrate, a second substrate, and the first substrate.
A liquid crystal display panel having a liquid crystal layer sandwiched between the substrate and the second substrate, and a frame having an opening exposing a display region of the liquid crystal display panel and covering the periphery of the liquid crystal display panel. A liquid crystal display device comprising an upper case formed of a body, wherein one main surface of the first substrate is a display surface of the liquid crystal display panel, and a polarizing plate provided on the display surface of the first substrate. The first polarizing plate has at least one side so that a tip portion thereof is located in a region other than the display region of the upper case.
A liquid crystal display device, wherein the liquid crystal display device extends from the side surface of the substrate to the outside. 2. The second substrate has a semiconductor chip mounted on a peripheral portion of at least one side of the main surface on the display surface side, and the polarizing plate is the semiconductor chip of the second substrate. The side opposite to the side to be mounted extends from the side surface of the first substrate to the outside so that the tip portion is located in a region other than the display region of the upper case. 1. The liquid crystal display device according to 1. 3. The semiconductor chip is mounted on the periphery of two adjacent sides of the main surface of the second substrate on the display surface side, and the polarizing plate is the semiconductor chip of the second substrate. The side opposite to the two sides provided extends from the side surface of the first substrate to the outside so that the tip portion is located in a region other than the display region of the upper case. 2. The liquid crystal display device according to item 2. 4. A circuit board mounted on a peripheral portion of at least one side of the second board and having a semiconductor chip mounted thereon, wherein the polarizing plate is mounted with the circuit board of the second board. The side opposite to the side extends from the side surface of the first substrate to the outside so that the tip portion is located in a region other than the display region of the upper case.
The liquid crystal display device according to item 1. 5. The circuit board is mounted on a peripheral portion of two adjacent sides of the second board, and the polarizing plate faces two sides of the second board on which the circuit board is mounted. The liquid crystal display device according to claim 4, wherein the side extends from the side surface of the first substrate to the outside so that the tip portion is located in a region other than the display region of the upper case. .