JP2010060815A - Liquid crystal display panel integrated with protective plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display panel integrated with protective plate, wherein a liquid crystal display element is reinforced, by bonding the liquid crystal display element and an observation surface protection plate with full strength. <P>SOLUTION: A protruding portion 2a, on which a driver element 16 is to be mounted, is formed on an observation-side substrate 2, and an observation-side polarizing plate 12 is formed into a shape smaller than the observation-side substrate 2; and an observation surface protection plate 18 formed into a shape, covering the whole of the observation-side substrate 2, including the protruding portion 2a, is disposed on the observation side of a liquid crystal display element 1, which is stuck on the outer surface of the observation-side substrate 2, with the peripheral edge of the observation-side polarizing plate 12 being located farther inside than the peripheral edge of the observation-side substrate 2; a resin layer 19 made to correspond to a region having a wider area than the observation-side polarizing plate 12, is provided between the liquid crystal display element 1 and the observation surface protection plate 18; and the observation surface protection plate 18 is bonded to an outer surface of the observation-side polarizing plate 12 of the liquid crystal display element 1 by the resin layer 19 and the outer surface of a portion exposed around the observation-side polarizing plate 12 of the observation-side substrate 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a protective plate integrated liquid crystal display panel.

  As a liquid crystal display panel, there is a protective plate integrated liquid crystal display panel in which a liquid crystal display element and an observation surface protection plate for protecting the observation side surface of the liquid crystal display element are bonded and integrated with a resin layer.

  As a liquid crystal display element constituting this liquid crystal display panel integrated with a protective plate, an overhanging portion that protrudes outward from the opposite substrate is formed on the observation substrate of the pair of substrates facing each other with the liquid crystal layer interposed therebetween. A device in which the driver element is mounted on the overhang is known.

A protective plate-integrated liquid crystal display panel including a liquid crystal display element in which a driver-mounting extension portion is formed on the observation side substrate is conventionally used as a polarizing plate on the observation side of the liquid crystal display element. An observation is formed in the same outer shape, and this polarizing plate is attached to the entire outer surface of the observation side substrate, and the observation side of the liquid crystal display element is formed to cover the entire observation side substrate including the overhanging portion. A surface protection plate is arranged, and the observation-side polarizing plate of the liquid crystal display element and the observation surface protection plate are bonded to each other by a resin layer provided over the entire area in the gap therebetween (Patent Document) 1).
JP 2007-114737 A

  However, the conventional protective plate-integrated liquid crystal display panel in which the observation-side polarizing plate of the liquid crystal display element is attached to the entire outer surface of the observation-side substrate and the observation-side polarizing plate and the observation surface protective plate are bonded together by a resin layer is the liquid crystal display Adhesive strength between the display element and the observation surface protection plate is not sufficient.

  In addition to protecting the observation surface of the liquid crystal display element, the observation surface protection plate also functions as a reinforcing plate of the liquid crystal display element. The conventional protection plate integrated liquid crystal display panel includes the liquid crystal display element. Since the adhesive strength between the liquid crystal display element and the observation surface protection plate is not sufficient, the reinforcing effect of the liquid crystal display element, particularly the reinforcing effect of the overhang formed on the observation side substrate of the liquid crystal display element cannot be exhibited sufficiently.

  An object of the present invention is to provide a protective plate integrated liquid crystal display panel in which a liquid crystal display element and an observation surface protection plate are bonded with sufficient strength and the liquid crystal display element is effectively reinforced.

The protection plate integrated liquid crystal display panel according to claim 1 of the present invention includes:
At least observation of a pair of substrates on the opposite side and an observation side disposed opposite to each other with a predetermined gap, a liquid crystal layer sealed in a gap between the substrates, and an inner surface facing each other of the pair of substrates A pair of first and second electrodes provided on the inner surface of the side substrate for forming a plurality of pixels for controlling light transmission by changing the alignment state of liquid crystal molecules of the liquid crystal layer by applying a voltage; And a pair of polarizing plates disposed on the outer surface of the substrate, and a pair of polarizing plates on the opposite side of the observation side. In addition, a driver element for applying a voltage between the electrodes of the plurality of pixels is mounted, and the observation-side polarizing plate is formed in a shape smaller than the observation-side substrate, and the observation-side polarizing plate is , The periphery of the observation side substrate from the periphery A liquid crystal display device which is located inside comprising affixed to the outer surface of the viewing-side substrate,
An observation surface protection plate formed on the observation side substrate of the liquid crystal display element so as to cover the entire portion including the protruding portion, and disposed on the observation side of the liquid crystal display element;
Between the liquid crystal display element and the observation surface protection plate, a resin layer provided corresponding to a region having a larger area than the observation side polarizing plate,
With
The observation surface protective plate is bonded to the outer surface of the observation side polarizing plate of the liquid crystal display element and the outer surface of the exposed portion of the observation side substrate around the observation side polarizing plate by the resin layer. And

  According to a second aspect of the present invention, in the protection plate integrated liquid crystal display panel according to the first aspect, the observation-side polarizing plate of the liquid crystal display element is an outer surface of a region excluding the projecting portion of the observation-side substrate. And the resin layer for adhering the liquid crystal display element and the observation surface protection plate is larger than the observation side polarizing plate and corresponds to a region having an area including the entire area of the overhanging portion. It is provided.

  According to the protection plate integrated liquid crystal display panel of the present invention, the liquid crystal display element and the observation surface protection plate can be bonded with sufficient strength to effectively reinforce the liquid crystal display element.

(First embodiment)
1 to 5 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view of a protective plate integrated liquid crystal display panel, and FIG. 2 is a sectional view of the protective plate integrated liquid crystal display panel. .

  As shown in FIGS. 1 and 2, the protection plate integrated liquid crystal display panel includes a liquid crystal display element 1 for displaying an image, an observation surface protection plate 18 disposed on the observation side of the liquid crystal display element 1, and the liquid crystal. A transparent resin layer 19 is provided between the display element 1 and the observation surface protection plate 18 and adheres the liquid crystal display element 1 and the observation surface protection plate 18.

  3 is a plan view of the liquid crystal display element 1 viewed from the side opposite to the observation side, and FIG. 4 is an enlarged cross-sectional view of a part of the liquid crystal display element 1. The liquid crystal display element 1 has a predetermined gap. A transparent substrate 2, 3 made of a pair of glass on the opposite side of the observation side provided opposite to each other, a liquid crystal layer 4 sealed in a gap between these substrates 2, 3, and the pair of substrates 2, 3 Are provided on at least the inner surface of the observation-side substrate 2, and a plurality of pixels for controlling light transmission by changing the alignment state of the liquid crystal molecules of the liquid crystal layer 4 by applying a voltage. It consists of first and second transparent electrodes 5 and 7 and a pair of polarizing plates 12 and 13 on the observation side and opposite sides arranged on the outer surfaces of the pair of substrates 2 and 3, respectively.

  In this embodiment, the liquid crystal display element 1 is provided with first and second electrodes 5 and 7 for forming a plurality of pixels on the inner surfaces of the observation side substrate 2 and the opposite side substrate 3, respectively. A plurality of pixel electrodes (first electrodes) 5 formed in a matrix in the row and column directions are provided on the inner surface of the observation-side substrate 2, and the plurality of pixels are provided on the inner surface of the opposite substrate 3. A counter electrode (second electrode) 7 formed to face the entire array region of the electrodes 5 is provided.

  The liquid crystal display element 1 is an active matrix liquid crystal display element using TFTs (thin film transistors) as active elements. The liquid crystal display element 1 is disposed on the inner surface of the observation-side substrate 2 so as to correspond to the plurality of pixel electrodes 5, respectively. A plurality of TFTs 6 connected to the pixel electrodes 5 to be operated, a plurality of scanning lines (not shown) for supplying gate signals to the plurality of TFTs 6 in each row, and a plurality of data signals to be supplied to the plurality of TFTs 6 in each column, respectively. Signal lines (not shown).

  In FIG. 4, the plurality of TFTs 6 are simplified, but each of these TFTs 6 includes a gate electrode formed on the inner surface of the observation side substrate 2 and an inner surface of the observation side substrate 2 covering the gate electrode. A transparent gate insulating film formed on substantially the whole, an i-type semiconductor film formed on the gate insulating film so as to face the gate electrode, and one side and the other side of the i-type semiconductor film And a drain electrode and a source electrode, respectively, formed via an n-type semiconductor film.

  The plurality of scanning lines are formed on the inner surface of the observation-side substrate 2 so as to be connected to the gate electrodes of the plurality of TFTs 6 in each row, and the plurality of signal lines are formed on the gate insulating film. The plurality of pixel electrodes 5 are formed on the gate insulating film and connected to the source electrodes of the corresponding TFTs 6. The pixel electrodes 5 are connected to the drain electrodes of the TFTs 6 in each column.

  On the other hand, on the inner surface of the opposite substrate 3, three colors of red, green, and blue are provided so as to correspond to a plurality of pixels each having a region where the plurality of pixel electrodes 5 and the counter electrode 7 face each other. Filters 8R, 8G, and 8B are provided, and the counter electrode 7 is formed on the color filters 8R, 8G, and 8B.

  The pair of substrates 2 and 3 are joined together via a frame-shaped sealing material 11 surrounding a screen area in which the plurality of pixels are arranged in a matrix, and the gap between the substrates 2 and 3 is A liquid crystal layer 4 is sealed in a region surrounded by the sealing material 11.

  Further, alignment films 9 and 10 are formed on the inner surfaces of the pair of substrates 2 and 3 so as to cover the electrodes 5 and 7, respectively, and the liquid crystal molecules of the liquid crystal layer 4 are formed by the alignment films 9 and 10. It is oriented in the defined initial orientation state.

  The liquid crystal display element 1 is a TN type or STN type liquid crystal display element in which liquid crystal molecules are twisted between a pair of substrates 2 and 3, and the liquid crystal molecules are aligned substantially perpendicular to the surfaces of the substrates 2 and 3. Vertical alignment type liquid crystal display element, non-twisted horizontal alignment type liquid crystal display element in which liquid crystal molecules are aligned in parallel with the substrates 2 and 3 with the molecular long axis aligned in one direction, and liquid crystal molecules are bend aligned Any of the bend alignment type liquid crystal display elements to be used may be used, and a ferroelectric or antiferroelectric liquid crystal display element may be used.

  Further, in the liquid crystal display element 1 of this embodiment, a plurality of pixel electrodes 5 are provided on the inner surface of the observation side substrate 2 and a counter electrode 7 is provided on the inner surface of the opposite side substrate 3. Includes a plurality of first electrodes for forming a plurality of pixels arranged in a matrix on the inner surface of the observation side substrate 2 of the pair of substrates 2 and 3, and the liquid crystal layer 4 side of the first electrodes. A second electrode having a plurality of elongated electrode portions formed to be insulated from the first electrode and a plurality of the first electrodes are arranged corresponding to the first electrodes, and connected to the corresponding first electrodes. A plurality of TFTs, a plurality of scanning lines for supplying gate signals to the plurality of TFTs in each row, and a plurality of signal lines for supplying data signals to the plurality of TFTs in each column, respectively. A lateral electric field (on the substrate surface) between the second electrode and the second electrode And causing Cormorants direction of the electric field) may be of a lateral electric field control type for varying the orientation of the liquid crystal molecules.

  Further, the observation side substrate 2 of the liquid crystal display element 1 is formed with an overhang portion 2a extending outward from the opposite side substrate 3, and the electrodes 5 of the plurality of pixels are formed on the overhang portion 2a. , 7 is mounted with a driver element 16 made of an LSI for applying a voltage.

  In the liquid crystal display element 1 of this embodiment, the protruding portion 2a is formed on one side of the observation side substrate 2, and one driver element that performs scanning driving and data signal writing driving on the protruding portion 2a. 16, and a plurality of output terminals (not shown) of the driver element 16 are connected to the plurality of scanning lines, a plurality of signal lines, and the counter electrode 7 on the inner surface of the observation-side substrate 2, respectively. A plurality of output-side wirings 14 are provided, and a plurality of input-side wirings 15 are provided for connecting a plurality of input terminals (not shown) of the driver element 16 to an external circuit (not shown).

  Note that the connection wiring for the counter electrode 7 among the plurality of output-side wirings 14 is connected to the counter electrode 7 via a conductor (not shown) at the substrate bonding portion by the frame-shaped sealing material 11. .

  The plurality of input-side wirings 15 are led out to an end edge of the overhanging portion 2a, and are connected to the end of the overhanging portion 2a via a wiring film 17 bonded and connected with an anisotropic conductive adhesive. To an external circuit (not shown).

  Further, the observation-side polarizing plate 12 of the liquid crystal display element 1 is formed in a shape larger than the screen area and smaller than the observation-side substrate 2, and the periphery of the observation-side polarizing plate 12 is defined as the observation-side substrate. 2 is located on the inner side of the peripheral edge of 2 and is attached to the outer surface of the observation side substrate 2.

  In this embodiment, the observation-side polarizing plate 12 is smaller than a region facing the opposite-side substrate 3 excluding the protruding portion 2a of the observation-side substrate 2 and has a screen area (frame) of the liquid crystal display element 1. Is formed in a rectangular plate shape that is larger than a region surrounded by the inner side of the sealing material 11, and the projection of the observation side substrate 2 is formed on the outer surface of the region excluding the projection portion 2 a of the observation side substrate 2. A peripheral portion of a side other than the side corresponding to the portion 2 a and the protruding portion 2 a of the observation side substrate 2 is exposed and pasted around the observation side polarizing plate 12.

  Further, the polarizing plate 13 on the opposite side of the liquid crystal display element 1 is formed in a rectangular plate shape having the same size as the opposite substrate 3 or smaller than the opposite substrate 3 and larger than the screen area. And is affixed to the outer surface of the opposite substrate 3.

  The observation surface protection plate 18 is made of tempered glass, and covers the entire observation side substrate 2 of the liquid crystal display element 1 including the extension portion 2a, for example, the extension portion 2a of the observation side substrate 2. Of the portion that is exposed to the outer surface of the observation side polarizing plate 12 and the periphery of the observation side polarizing plate 12 of the observation side substrate 2 on the observation side of the liquid crystal display element 1. It is arranged to face the outer surface.

  The resin layer 19 is made of a resin having a strong adhesive force to glass, for example, an epoxy resin, an acrylic resin, or a mixed resin of at least one epoxy type and at least one acrylic type, and the like. Between the liquid crystal display element 1 and the observation surface protection plate 18, the liquid crystal display element 1 is provided so as to correspond to a region having a larger area than the observation-side polarizing plate 12 of the liquid crystal display element 1.

  In this embodiment, the resin layer 19 is provided so as to correspond to a region that is larger than the observation-side polarizing plate 12 and has an area including the entire area of the protruding portion 2 a formed on the observation-side polarizing plate 12. ing.

  The observation surface protective plate 18 is formed on the outer surface of the observation side polarizing plate 12 of the liquid crystal display element 1 and the outer surface of the portion exposed to the periphery of the observation side polarizing plate 12 of the observation side substrate 2 by the resin layer 19. It is glued.

  The resin layer 19 is formed by dropping the resin on one of the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18, for example, on the observation side surface of the liquid crystal display element 1, by a dispenser. The resin is supplied to the entire area between the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18 by supplying by means of transfer or the like and pressing the observation surface protection plate 18 on top of it. Formed.

  FIG. 5 shows an example of supplying the resin onto the liquid crystal display element 1. In this example, an amount of resin that is spread over the entire area between the liquid crystal display element 1 and the facing surface of the observation surface protection plate 18. 19 a is supplied separately on the central part of the observation-side polarizing plate 12 of the liquid crystal display element 1 and on the central part of the projecting part 2 a of the observation-side substrate 2.

  The resin 19a may be distributed and supplied to a plurality of positions on the observation side polarizing plate 12 and the central portion of the overhanging portion 2a of the observation side substrate 2, or the observation side You may supply collectively to the position biased to the said protrusion part 2a side rather than the center part on the polarizing plate 12. FIG.

  The observation surface protection plate 18 cures the resin layer 19 while maintaining the pressurized state, thereby observing the outer surface of the observation side polarizing plate 12 of the liquid crystal display element 1 and the observation side substrate 2. It is adhered to the outer surface of the portion exposed around the side polarizing plate 12.

  In this protection plate integrated liquid crystal display panel, an overhanging portion 2 a for mounting the driver element 16 is formed on the observation side substrate 2, and the observation side polarizing plate 12 is smaller than the observation side substrate 2. The observation-side polarizing plate 12 is formed on the observation side of the liquid crystal display element 1 that is attached to the outer surface of the observation-side substrate 2 with the periphery positioned inside the periphery of the observation-side substrate 2. An observation surface protection plate 18 formed in a shape that covers the entire observation-side substrate 2 of the display element 1 including the overhanging portion 2a is disposed, and the observation surface protection plate 18 is connected to the liquid crystal display element 1 and the observation device. An outer surface of the observation-side polarizing plate 12 of the liquid crystal display element 1 and the observation-side substrate are provided by a resin layer 19 provided corresponding to a region having a larger area than the observation-side polarizing plate 12 between the surface protection plate 18 and the surface-protecting plate 18. 2 exposed around the observation side polarizing plate 12 Since the liquid crystal display element 1 and the observation surface protection plate 18 are bonded with sufficient strength, the liquid crystal display element 1 is attached to the observation-side substrate 2. It can reinforce effectively including the part 2a.

  That is, in this protection plate integrated liquid crystal display panel, the observation side substrate 2 and the observation surface protection plate 18 of the liquid crystal display element 1 are made of glass, respectively. Since the resin layer 19 is made of a resin 19a having a strong adhesive force to glass, the observation surface protection plate 18 is the observation side substrate 2 of the observation side surfaces of the liquid crystal display element 1. Is adhered to the exposed portion with an adhesive force stronger than the adhesive force to the region where the observation-side polarizing plate 12 is attached.

  The observation-side polarizing plate 12 of the liquid crystal display element 1 is attached to the outer surface of the observation-side substrate 2 with its periphery positioned inside the periphery of the observation-side substrate 2, and the observation-surface protective plate 18 is bonded to the exposed portion of the observation side substrate 2 around the observation side polarizing plate 12 with a strong adhesive force, so that the liquid crystal display element 1 and the observation surface protection plate 18 are connected to the observation side. The liquid crystal display element 1 can be effectively reinforced including the overhanging portion 2a of the observation side substrate 2 by bonding with sufficient strength over the entire periphery including the overhanging portion 2a of the substrate 2.

  Moreover, in the protection plate integrated liquid crystal display panel of this embodiment, the observation-side polarizing plate 12 of the liquid crystal display element 1 is attached to the outer surface of the observation-side substrate 2 excluding the protruding portion 2a, and the resin layer 19 is larger than the observation-side polarizing plate 12 and is provided so as to correspond to a region having an area including the entire region of the overhanging portion 2a. Therefore, the entire overhanging portion 2a is disposed on the observation surface protection plate. 18 can be reinforced.

(Second Embodiment)
6 to 8 show a second embodiment of the present invention. FIG. 6 is an exploded perspective view of the protection plate integrated liquid crystal display panel. FIG. 7 is a plan view of the protection plate integrated liquid crystal display panel. 8 is a cross-sectional view of the protective plate integrated liquid crystal display panel. In this embodiment, parts corresponding to those of the first embodiment are denoted by the same reference numerals, and description of the same parts is omitted.

  In the protection plate integrated liquid crystal display panel of this embodiment, between the liquid crystal display element 1 and the observation surface protection plate 18, substantially the entire periphery including the protruding portion 2 a of the observation side substrate 2 of the liquid crystal display element 1. In correspondence with the circumference, spacers 20 for defining the layer thickness and the outer shape of the resin layer 19 for bonding the liquid crystal display element 1 and the observation surface protection plate 18 are arranged.

  The spacer 20 is made of a resin tape formed with a width smaller than the width of the frame-shaped portion around the screen area of the liquid crystal display element 1 (the width of the substrate bonding portion by the frame-shaped sealing material 11). The liquid crystal display element 1 is arranged so as to correspond to each of the four edge portions, and one of the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18, for example, the observation side substrate 2 of the liquid crystal display element 1. It is affixed on the outer surface by a double-sided adhesive tape (not shown) formed in the same width as the resin tape.

  Further, each spacer 20 corresponding to each of the four edge portions of the liquid crystal display element 1 is provided with a gap between the end portions of the two spacers 20 adjacent to each other at the four corner portions of the observation side substrate 2. And attached to the outer surface of the observation side substrate 2.

  Further, in this embodiment, the observation-side polarizing plate 12 of the liquid crystal display element 1 is smaller than the region surrounded by the spacers 20 in the region excluding the protruding portion 2a of the observation-side substrate 2, and It is formed in a rectangular plate shape larger than the screen area of the liquid crystal display element 1, and the overhanging portion 2 a of the observation side substrate 2 and the observation are formed on the outer surface of the region excluding the overhanging portion 2 a of the observation side substrate 2. A portion of the side substrate 2 other than the projecting portion 2a, which is inside the spacers 20, is attached to the periphery of the observation-side polarizing plate 12 so as to be exposed.

  The resin layer 19 is made of a resin having a strong adhesion to glass on one of the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18, for example, on the observation side surface of the liquid crystal display element 1. A region surrounded by the spacers 20 between the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18 by supplying and pressurizing the observation surface protection plate 18 thereon. The observation surface protective plate 18 is formed by spreading the resin layer 19 in a state where the pressurized state is maintained, whereby the observation side polarizing plate 12 of the liquid crystal display element 1 is formed. And the outer surface of the portion exposed around the observation-side polarizing plate 12 of the observation-side substrate 2.

  In the protection plate integrated liquid crystal display panel of this embodiment, between the liquid crystal display element 1 and the observation surface protection plate 18, substantially the entire periphery including the protruding portion 2 a of the observation side substrate 2 of the liquid crystal display element 1. Since the spacer 20 for defining the layer thickness and the outer shape of the resin layer 19 is arranged corresponding to the circumference, the resin layer 19 is formed over the entire region surrounded by the spacer 20, The liquid crystal display element 1 and the observation surface protection plate 18 are further bonded with sufficient strength, and the liquid crystal display element 1 is reinforced more effectively including the protruding portion 2a formed on the observation side substrate 2. be able to.

  Further, in this embodiment, each spacer 20 corresponding to each of the four edge portions of the liquid crystal display element 1 is used as an end portion between two spacers 20 and 20 adjacent to each other at the four corner portions of the observation side substrate 2. Since a gap is provided between them, the resin supplied on one of the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18 is surrounded by the spacer 20 by pressurization. When spreading over the entire region, surplus resin can be discharged to the outside from the gap between the end portions of the two adjacent spacers 20, 20. Therefore, it is necessary to strictly control the supply amount of the resin Therefore, the production of the protective plate integrated liquid crystal display panel can be facilitated.

(Other embodiments)
In the first and second embodiments, the resin layer 19 for adhering the liquid crystal display element 1 and the observation surface protection plate 18 is either one of the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18. The resin layer 19 is formed on one of the opposing surfaces of the liquid crystal display element 1 and the observation surface protection plate 18 by supplying a resin onto the substrate and pressing and spreading the resin under pressure. In addition, it may be printed in a shape corresponding to a region having a larger area than the polarizing plate on the observation side of the liquid crystal display element 1 by screen printing, and thus the resin layer 19 can be formed more easily. Can do.

1 is an exploded perspective view of a protective plate-integrated liquid crystal display panel according to a first embodiment of the present invention. 1 is a cross-sectional view of a protection plate integrated liquid crystal display panel according to a first embodiment. The top view seen from the opposite side to the observation side of the liquid crystal display element in the said protective plate integrated liquid crystal display panel. FIG. 3 is an enlarged cross-sectional view of a part of the liquid crystal display element 1. The figure which shows the example of supply of resin on the liquid crystal display element in a 1st Example. FIG. 6 is an exploded perspective view of a protective plate integrated liquid crystal display panel according to a second embodiment of the present invention. The top view of the protective plate integrated liquid crystal display panel of a 2nd Example. Sectional drawing of the protection plate integrated liquid crystal display panel of a 2nd Example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Liquid crystal display element, 2 ... Observation side board | substrate, 2a ... Overhang | projection part, 3 ... Opposite side board | substrate, 4 ... Liquid crystal layer, 5 ... Pixel electrode, 6 ... TFT, 7 ... Counter electrode, 8R, 8G, 8B ... Color Filter: 11 ... Sealing material, 12 ... Observation side polarizing plate, 13 ... Opposite side polarizing plate, 16 ... Driver element, 18 ... Observation surface protection plate, 19 ... Resin layer, 20 ... Spacer.

Claims (2)

At least observation of a pair of substrates on the opposite side and an observation side disposed opposite to each other with a predetermined gap, a liquid crystal layer sealed in a gap between the substrates, and an inner surface facing each other of the pair of substrates A pair of first and second electrodes provided on the inner surface of the side substrate for forming a plurality of pixels for controlling light transmission by changing the alignment state of liquid crystal molecules of the liquid crystal layer by applying a voltage; And a pair of polarizing plates disposed on the outer surface of the substrate, and a pair of polarizing plates on the opposite side of the observation side. In addition, a driver element for applying a voltage between the electrodes of the plurality of pixels is mounted, and the observation-side polarizing plate is formed in a shape smaller than the observation-side substrate, and the observation-side polarizing plate is , The periphery of the observation side substrate from the periphery A liquid crystal display device which is located inside comprising affixed to the outer surface of the viewing-side substrate,
An observation surface protection plate formed on the observation side substrate of the liquid crystal display element so as to cover the entire portion including the protruding portion, and disposed on the observation side of the liquid crystal display element;
Between the liquid crystal display element and the observation surface protection plate, a resin layer provided corresponding to a region having a larger area than the observation side polarizing plate,
With
The observation surface protective plate is bonded to the outer surface of the observation side polarizing plate of the liquid crystal display element and the outer surface of the exposed portion of the observation side substrate around the observation side polarizing plate by the resin layer. Protective plate integrated liquid crystal display panel.   The observation-side polarizing plate of the liquid crystal display element is attached to the outer surface of the region excluding the overhanging portion of the observation-side substrate, and the resin layer is larger than the observation-side polarizing plate and has an area including the entire area of the overhanging portion. 2. The protection plate integrated liquid crystal display panel according to claim 1, wherein the liquid crystal display panel is provided so as to correspond to the region.

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