JP5370240B2 - Display module - Google Patents

Description

  The present invention relates to a display module in which a protective plate is installed on a display surface.

  Conventionally, a method of attaching a protective plate to a front side of a liquid crystal panel via a photocurable transparent adhesive in an electronic device including a liquid crystal panel has been proposed. At this time, the rear surface of the protective plate (the surface of the pair of main surfaces of the protective plate on the side where the liquid crystal panel is disposed) usually has a black light-shielding frame that overlaps with the non-display area of the liquid crystal panel at the peripheral edge. Since it is installed by a method such as printing ink, light for curing the photocurable adhesive is irradiated from the side of the liquid crystal panel.

JP 2009-192794 A

  By the way, a touch panel is arranged on the front side of the liquid crystal panel, and a protective plate is pasted on the further front side of the touch panel (the side opposite to the side on which the liquid crystal panel is arranged with respect to the touch panel) via a photocurable transparent adhesive. Weared electronic devices have also been proposed. When manufacturing an electronic device equipped with this touch panel, after placing a protective plate on the front side of the touch panel via a photo-curable adhesive, light is irradiated from the back side of the touch panel to cure the photo-curable adhesive, Next, the touch panel to which the protective plate is attached is arranged on the front side of the liquid crystal panel. In this case, there is a method of irradiating light from the rear side of the touch panel as a simple method for curing the photo-curing adhesive in the region overlapping the light shielding frame, but a wiring board is bonded to one edge of the touch panel. Therefore, the photocurable adhesive in the region shielded from light by the wiring board remains uncured. And even after irradiating light to the photocurable adhesive, if the uncured photocurable adhesive remains in contact with the printing light-shielding frame, the printing color may change and the display device may become defective. was there.

  It is an object of the present invention to prevent a photocurable adhesive for attaching a protective plate to the front surface of a touch panel from remaining uncured at least in a portion in contact with a printing light-shielding frame in a display module having a touch panel. An object of the present invention is to provide a display module in which the risk of the display quality being deteriorated by changing the color of the printing frame formed on the protective plate by curing the photocurable adhesive is reduced.

  The display module according to claim 1 is attached to the front side of the display panel, the touch panel disposed on the front side of the display panel, and the front side of the touch panel via a photocurable transparent adhesive, and faces the touch panel. A display module comprising a protective plate having a light shielding frame formed on the rear surface, and at least a part of the wiring board having non-translucency is bonded to the touch panel, and between the protective plate and the touch panel, Barrier means for preventing at least a region of the light shielding frame that overlaps with the non-translucent portion of the wiring board from coming into contact with the photocurable transparent adhesive is provided. .

  According to a second aspect of the present invention, in the display module according to the first aspect of the invention, the barrier unit is configured such that the light shielding frame is disposed between a region overlapping the display region and a region overlapping the wiring board in the light shielding frame. It includes the first barrier means formed by increasing the printing thickness.

  The invention according to claim 3 is the display module according to claim 2, wherein the first barrier means is in contact with the touch panel in a region of the light shielding frame that does not overlap the wiring board. It is what.

  According to a fourth aspect of the present invention, in the display module according to the second or third aspect, the first barrier means is formed such that a predetermined portion surrounds a region of the light shielding frame that overlaps the wiring board. It is characterized by that.

  According to a fifth aspect of the present invention, in the display module according to any one of the first to fourth aspects, the barrier means includes a region of the light shielding frame that overlaps the wiring substrate and a region that does not overlap the wiring substrate. Second barrier means provided so as to be in contact with the light shielding frame along a boundary line is included.

  According to a sixth aspect of the present invention, in the display module according to the fifth aspect, the second barrier means is a boundary line between a region of the light shielding frame that overlaps the wiring substrate and a region that does not overlap the wiring substrate. A region along the line is provided from the light shielding frame to the wiring board so as to be in contact with the light shielding frame and the wiring board.

  According to a seventh aspect of the present invention, in the display module according to any one of the first to sixth aspects, the barrier means has a printing thickness of the light shielding frame in a region of the light shielding frame that does not overlap the wiring board. Including a third barrier means formed by thinning.

  According to an eighth aspect of the present invention, in the display module according to any one of the first to seventh aspects, the barrier means is formed by digging a groove in the protective plate in a region overlapping the display region. 4 barrier means is included.

  The invention according to claim 9 is a display panel, a touch panel disposed on the front side of the display panel, and a rear surface that is attached to the front side of the touch panel via a photocurable transparent adhesive and faces the touch panel. A display module comprising a protective plate on which a light shielding frame is formed, wherein a flexible wiring substrate in which a base film in a region overlapping the light shielding frame is transparent is bonded to the touch panel. is there.

  The invention described in claim 10 is a display panel, a touch panel disposed on the front side of the display panel, and a rear surface that is attached to the front side of the touch panel via a photocurable transparent adhesive and faces the touch panel. A display module comprising a protective plate on which a light shielding frame is formed, wherein a flexible wiring board provided with a through hole avoiding a wiring portion is disposed on the touch panel so that the through hole and the light shielding frame overlap each other. It is characterized by being joined.

  According to an eleventh aspect of the present invention, in the display module according to any one of the first to tenth aspects, the display panel is a liquid crystal display panel or an organic EL display panel.

  According to the present invention, it is possible to reduce the possibility that the color of the printing frame formed on the protective plate is changed and the display quality is lowered.

(A) is the top view which showed the mobile telephone as 1st Embodiment of this invention, (b) is the elevation view. It is the II-II sectional view taken on the line of Fig.1 (a) which expands and shows the principal part structure of the said 1st Embodiment. It is an expanded sectional view corresponding to Drawing 2 showing a 2nd embodiment of the present invention. It is an expanded sectional view corresponding to Drawing 2 showing a 3rd embodiment of the present invention. It is an expanded sectional view corresponding to Drawing 2 showing a 4th embodiment of the present invention. It is an expanded sectional view corresponding to Drawing 2 showing the important section composition in a 5th embodiment of the present invention.

  As shown in FIG. 1 (b), the mobile phone as the first embodiment of the first invention is generally provided with a touch panel 2 on the front side of the liquid crystal display panel 1, and further on the front side of the touch panel (with respect to the touch panel 2). A protective plate 3 is superposed on a side opposite to the side where the liquid crystal display panel 1 is disposed via a photocurable adhesive layer 6.

  The liquid crystal display panel 1 is a normal TN type liquid crystal display panel (not shown), but a twisted nematic liquid crystal layer is sandwiched between a pair of transparent substrates, and a polarizing plate is attached to each outer surface of the pair of transparent substrates. Has been configured.

  On the front side of the liquid crystal display panel 1, a touch panel 2 is superimposed and installed via a transparent adhesive layer 4. The touch panel 2 is a resistance film type touch panel. As shown in FIG. 2, a pair of transparent substrates 22 and 22 each having a transparent resistance film 21 deposited on each surface are opposed to the resistance film deposition side surface. It is configured to be joined at a predetermined interval.

  A flexible wiring board 5, at least a part of which has non-translucency, is provided at one edge of the front surface of the touch panel 2 (the surface facing the protective plate 3 among the pair of main surfaces of the touch panel 2). Conductive connection is made. The flexible wiring board 5 is an ordinary FPC (Flexible Printed Circuit) whose base film is made of a polyimide resin film, and various signal voltages such as a touch input signal from the touch panel 2 as an information input tool are driven and controlled outside the figure. This is a wiring board for inputting / outputting to / from the unit. In this specification, when light such as UV light is irradiated through a predetermined member, the photo-curing adhesive 6 ′ disposed on the side opposite to the side irradiated with the light. When the member transmits light to such an extent that is cured, the member is said to have translucency.

  A transparent protective plate 3 is installed on the front side of the touch panel 2 via a photo-curing transparent adhesive layer 6. The rear surface of the transparent protective plate 3 facing the touch panel 2 is a non-display area that is a region excluding the display area Dd on the front surface of the liquid crystal panel 1 (the surface facing the touch panel 2 of the pair of main surfaces of the liquid crystal panel 1). A light shielding frame 7 that overlaps the region is applied and formed by printing.

  The light shielding frame 7 in the present embodiment is formed by coating by a screen printing method using black resin ink. As the black resin ink, an ink for screen printing in which carbon black is mixed in an acrylic binder resin is used.

  Thus, a wall portion 71 that is locally thick is provided at a predetermined position of the light shielding frame 7. This wall portion 71 is a partition wall (first barrier means) that prevents at least a region of the light shielding frame 7 that overlaps at least the non-translucent portion of the flexible wiring board 5 from coming into contact with the photocurable transparent adhesive 6 ′. Between the protective plate 3 and the touch panel 2 and projecting in an L shape along the end face of the joint end portion 51 of the flexible wiring board 5.

  The light-shielding frame 7 having the L-shaped wall portion 71 described above can be obtained by making the roughness of the portion corresponding to the wall portion 71 of the screen printing plate moderately rougher than other portions, or the entire light-shielding frame 7. It is possible to form easily by printing with a plate that prints at a uniform thickness and then overprinting with only the wall portion 71 changed to a plate that prints.

  In order to install the transparent protective plate 3 on the front side of the touch panel 2, first, a predetermined amount of the light curable adhesive 6 ′ is dropped on the central portion of the front surface of the touch panel 2.

  Next, the transparent protective plate 3 is placed with the light-shielding frame 7 facing the front surface of the touch panel 2 while aligning the positions, and then the entire outer surface of the transparent protective plate 3 is pressed evenly. The photocurable adhesive 6 'sandwiched between them is spread out. In this pressurizing step, the pressurizing stroke is accurately controlled using a press machine or the like, so that the photocurable adhesive 6 ′ does not protrude from the touch panel 2 between the touch panel 2 and the transparent protective plate 3 and there is no gap. The touch panel 2 and the transparent protective plate 3 can be joined through a photocurable transparent adhesive layer 6 having a predetermined thickness.

  Next, as shown in FIG. 2, ultraviolet rays UV are irradiated from the rear side of the touch panel 2. At this time, the ultraviolet light UV is blocked to some extent by the joint end 51 of the flexible wiring board 5, so that the photocurable transparent resin remains uncured. However, between the protective plate 3 and the touch panel 2, the light curable adhesive 6 ′ enters the projection area Dp that is an area that overlaps at least the non-translucent portion of the wiring board in the light shielding frame. Is blocked by a wall portion 71 protruding from the light shielding frame 7. Therefore, there is no possibility that the uncured photocurable adhesive 6 'remains in contact with the light shielding frame 7 after the light is irradiated to the photocurable adhesive 6', and all the photocurable adhesives are sufficiently cured. Then, the transparent protective plate 3 is securely bonded to the touch panel 2. As a result, the occurrence of a problem that the light-shielding frame 7 changes color due to the uncured photo-curing adhesive coming into contact with the light-shielding frame 7 is prevented.

  In the present embodiment, the front end surface of the wall portion 71 of the light shielding frame 7 is brought into contact with the front surface of the touch panel 2, but the front end surface of the wall portion 71 and the front surface of the touch panel 2 may be separated to some extent. Good. In this case, since the pressurization stroke is accurately controlled in the pressurizing step of the transparent protective plate 3, there is a possibility that the photocurable adhesive 6 ′ may enter the projection region Dp even if it exceeds the wall 71. Absent. Here, the distance between the transparent protective plate 3 and the touch panel 2 was controlled by accurately controlling the pressurization stroke, but this was achieved by interposing a spacer (not shown) between the transparent protective plate 3 and the touch panel 2. The distance may be controlled.

  In addition, the intrusion prevention wall of the photocurable adhesive 6 ′ is not limited to the above-described light shielding frame wall portion 71, and light of the same material as that of the light curing transparent adhesive layer 6, for example, is different from the light shielding frame 7. You may protrude in the front surface of the opposing touch panel 2 with a curable adhesive or the like. In this case, in a state where the intrusion prevention wall by the photo-curing adhesive 6 ′ is semi-cured, the photo-curing adhesive 6 ′ for adhering the transparent protective plate is dropped and pressed and spread, and finally It is also possible to completely cure both photo-curing adhesives 6 'at once.

  The touch panel 2 to which the transparent protective plate 3 is attached as described above is bonded to the display surface of the liquid crystal display panel 1 via the transparent adhesive layer 4. As the transparent adhesive layer 4, a general-purpose transparent adhesive other than the photo-curing type is preferably used.

As described above, in the display module according to the first embodiment, a region that overlaps at least the non-translucent portion of the flexible wiring board 5 in the light shielding frame 7 between the transparent protective plate 3 and the touch panel 2. Is provided with a wall portion 71 in which the light shielding frame 7 is locally thickened to prevent contact with the light curable transparent adhesive 6 ', and the wall portion 71 is the wiring board of the light shielding frame. Including a first barrier means formed by increasing a printing thickness of the light shielding frame between a region overlapping the display region and the region overlapping the display region, and the wall portion 71 includes the wiring in the light shielding frame. The first barrier means is in contact with the touch panel in a region that does not overlap the substrate, and the first barrier means is formed such that a predetermined portion surrounds a region of the light shielding frame that overlaps the wiring substrate.
Therefore, in the first embodiment, the light curable transparent adhesive 6 ′ is prevented from entering the projection region Dp by the light shielding frame wall portion 71, and the light curable adhesive 6 ′ is overlapped with the flexible wiring board 5. Therefore, it is possible to sufficiently irradiate all of the photocurable adhesive 6 'with ultraviolet rays, and as a result, the photocurable adhesive 6' is irradiated with light and then uncured photocurable adhesive. There is no possibility that 6 'remains in contact with the light shielding frame 7, and discoloration of the light shielding frame 7 is reliably prevented.

  Next, second to fourth embodiments of the first invention will be described with reference to FIGS. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In 2nd Embodiment shown in FIG. 3, the reinforcement sheet 8 is affixed on the conduction | electrical_connection edge part 51 of the flexible wiring board 5 which is a non-light-transmissive member, and this reinforcement sheet 8 is made of photocurable transparent adhesive 6 '. It also serves as a second barrier means for preventing entry into the projection area Dp, which is an area overlapping the light shielding frame 7 and the joint end portion 51 of the flexible wiring board 5.

  A flexible cushioning material such as high-density urethane foam is suitable as the material of the reinforcing sheet 8, and such a reinforcing sheet material is adhered to the entire conductive joining end portion 51 of the flexible wiring board 5, or What is necessary is just to arrange | position in hook shape along an edge. Other configurations are the same as those in the first embodiment.

As described above, in the display module according to the second embodiment, a region that overlaps at least the non-translucent portion of the flexible wiring board 5 in the light shielding frame 7 is light between the transparent protective plate 3 and the touch panel 2. A reinforcing sheet 8 that prevents contact with the curable transparent adhesive 6 ′ is provided, and the reinforcing sheet 8 includes a region that overlaps the flexible wiring substrate 5 and a region that does not overlap the flexible wiring substrate 5 in the light shielding frame 7. The reinforcing sheet 8 is provided along a boundary line between a region that overlaps the flexible wiring board 5 and a region that does not overlap the flexible wiring board 5. The region is provided from the light shielding frame 7 to the flexible wiring board 5 so as to be in contact with the light shielding frame 7 and the flexible wiring board 5.
Accordingly, also in the second embodiment, as in the first embodiment, the entry of the light curable transparent adhesive 6 ′ into the projection region Dp is blocked by the reinforcing sheet 8 and overlaps the flexible wiring board 5. Since there is no photocurable adhesive 6 ', all of the photocurable adhesive 6' can be sufficiently irradiated with ultraviolet rays. As a result, after the light is applied to the photocurable adhesive 6 ' There is no possibility that the uncured photocurable adhesive 6 ′ remains in contact with the light shielding frame 7, and the discoloration of the light shielding frame 7 is reliably prevented.

  In the third embodiment shown in FIG. 4, the light shielding frame 7 is provided along the boundary between the projection region Dp of the flexible wiring board joint end 51 and other regions as a third barrier means of the present invention. An L-shaped groove 72 is recessed. The L-shaped groove 72 is recessed in the shape of a rectangle having a cross section of width w × depth d on the inner side of the projection area of the joint end 51, that is, on the display area Dd side. Here, each dimension of the width w and the depth d of the groove 72 can reliably block the light without leaking as the light shielding frame 7, and the light-curing adhesive 6 ′ enters the projection area 51 at the projection area. Is set as large as possible within a range that can be prevented.

  In the manufacturing process of the third embodiment, when the transparent protective plate 3 is pressed to spread the photocurable adhesive 6 ′ between the touch panel 2 and toward the projection region Dp of the flexible wiring board joint end 51. The photocurable adhesive 6 ′ first enters the groove 72, and after the groove 72 is filled with the photocurable adhesive 6 ′, the photocurable adhesive 6 ′ enters the projection region Dp. start. However, as described above, the dropping amount of the photocurable adhesive 6 ′ and the pressurizing stroke with respect to the transparent protective plate 3 do not cause the dropped photocurable adhesive 6 ′ to protrude from the projection area Dp of the entire touch panel 2. Since it is set so as to be spread evenly at a predetermined thickness, when the groove 72 is filled with the photocurable adhesive 6 ', the spread of the photocurable adhesive 6' in this direction is stopped. To do. That is, it becomes a buffer region of the photo-curing adhesive 6 ′ in which the groove 72 is pushed and expanded.

As described above, in the display module according to the third embodiment, a region that overlaps at least the non-translucent portion of the flexible wiring board 5 in the light shielding frame 7 is light between the transparent protective plate 3 and the touch panel 2. A groove 72 that prevents contact with the curable transparent adhesive 6 ′ is provided, and the groove 72 reduces the printing thickness of the light shielding frame in a region that does not overlap the wiring board of the light shielding frame. It is formed by.
As a result, the entry of the light curable adhesive 6 ′ into the projection region Dp is hindered, and the light curable adhesive 6 ′ does not exist in the portion overlapping the flexible wiring board 5. ′ Can be sufficiently irradiated with ultraviolet rays, and there is no possibility that the uncured photocurable adhesive 6 ′ remains in contact with the light shielding frame 7 after irradiating light to the photocurable adhesive 6 ′. Discoloration of the light shielding frame 7 is reliably prevented.

  In the fourth embodiment shown in FIG. 5, in place of the buffer groove 72 provided in the light shielding frame 7 in the third embodiment, the narrow groove 31 is provided in the transparent protective plate 3 as the fourth barrier means of the present invention. Is. In this case, since the narrow groove 31 is provided not at the non-display area to which the light shielding frame 7 is attached but at the edge of the display area Dd, the narrow groove 31 of the third embodiment is used so as not to adversely affect the display quality. A plurality of narrow grooves 31 that are smaller in width w and depth d than the groove 72 are arranged in parallel. Here, in order to make it easy to fill the photocurable adhesive 6 ′ without gaps, the bottom surface of the narrow groove 31 is a curved surface, or the photorefractive adhesive 6 ′ has a refractive index similar to that of the transparent protective plate 3. By selecting, the deterioration of display quality can be substantially eliminated.

  In the display module according to the fourth embodiment, a region where at least a portion of the light-shielding frame 7 that overlaps with the non-translucent portion of the light-shielding frame 7 overlaps between the transparent protective plate 3 and the touch panel 2 is a photocurable transparent adhesive. A narrow groove 31 that prevents contact with 6 'is provided, and the narrow groove 31 is formed by digging the narrow groove 31 in the protective plate 3 in a region of the light shielding frame 7 that overlaps the display region. As in the third embodiment, the plurality of narrow grooves 31 serve as a buffer that suppresses the spread of the photocurable adhesive 6 ′, and the amount of dripping of the photocurable adhesive 6 ′ and the pressurizing stroke of the transparent protective plate 3 can be controlled. By appropriately setting, entry of the light curable adhesive 6 ′ into the non-translucent member projection region Dp is effectively prevented, and the light curable adhesive 6 ′ is irradiated with light and then uncured photocured. The mold adhesive 6 'remains in contact with the light shielding frame 7. It becomes a possibility is not, discoloration of the light shielding frame 7 is reliably prevented.

  Next, 5th Embodiment in this application is described based on FIG. In the description of the present embodiment, the same components as those of the above-described embodiment and the like are denoted by the same reference numerals, and the description thereof is omitted.

  In the fifth embodiment, no barrier means is provided to prevent the light-curable transparent adhesive 6 'from advancing into a region where light is not irradiated in each of the above-described embodiments, and light is not irradiated. This eliminates an area where the adhesive 6 'may remain uncured.

  In other words, in the present embodiment, as the flexible wiring board 9 that is conductively joined to the touch panel 2, the translucent flexible wiring board 9 in which the base film in the region overlapping the light shielding frame 7 is made of a transparent resin film is used. As a result, at least in the portion of the translucent flexible wiring substrate 9 excluding the portion where the wiring is formed, the ultraviolet ray UV irradiated from the back surface of the touch panel 2 is bonded to the end portion 51 of the light shielding frame 7 and the flexible wiring substrate 5. Therefore, even if the photo-curing adhesive 6 ′ expanded to the projection area Dp has advanced, it will not remain uncured. As a result, there is no possibility that the uncured photocurable adhesive 6 ′ remains in contact with the light-shielding frame 7 after irradiating the uncured photocurable adhesive 6 ′ with light, and therefore there is no risk of contact with the light shielding frame 7. The shading frame 7 does not change color.

  In addition, in order to make at least a part of the flexible wiring board 9 translucent, in addition to the measure of making the base film transparent, avoid the wiring arrangement portion of the base film and overlap the light shielding frame 7 of the base film. By providing a plurality of through-holes for transmitting light, it is possible to impart sufficient translucency to cure the photocurable adhesive 6 '.

The invention of the present application is not limited to the above-described embodiments. For example, in any of the above-described embodiments, in addition to the dripping amount of the photocurable adhesive 6 ′ and the pressure stroke of the transparent protective plate 3, a transparent protection is provided for a spacer (not shown) set to have a desired size. By interposing between the plate 3 and the touch panel 2, it is possible to effectively prevent the light curable adhesive 6 ′ from entering the non-translucent member projection region Dp. In each of the above-described embodiments, the display module in which the transparent protective plate 3 is bonded to the touch panel 2 via the photocurable adhesive 6 ′ has been described as an example. However, the transparent protective plate 3 is a photocurable adhesive 6. It goes without saying that the present invention can also be applied to a display module that is joined to the liquid crystal display panel 1 via a 'and does not include the touch panel 2.
Further, the first to fourth barrier means may be used in combination with each other.
Further, for example, the present invention is not limited to a display module in which a transparent protective plate is installed on a liquid crystal display panel via a touch panel, but is also applied to a display module in which a transparent protective plate is installed on an organic EL display panel via a handwriting input panel. Of course, it can be widely applied.

DESCRIPTION OF SYMBOLS 1 Liquid crystal display panel 2 Touch panel 3 Transparent protective plate 31 Narrow groove 4 Transparent adhesive layer 5 Flexible wiring board 51 Joining edge part 6 Photocurable transparent adhesive layer 6 'Photocurable transparent adhesive 7 Light-shielding frame 71 Wall part 72 Groove 8 Reinforcement Sheet 9 Translucent flexible wiring board Dd Display area Dp Projection area

Claims (11)

A display panel;
A touch panel disposed on the front side of the display panel;
A display module comprising a protective plate attached to the front side of the touch panel via a photo-curing transparent adhesive and having a light shielding frame formed on the rear surface facing the touch panel,
A wiring board having at least a part of non-translucency is bonded to the touch panel,
Barrier means is provided between the protective plate and the touch panel to prevent a region of the light shielding frame that overlaps at least a non-translucent portion of the wiring board from coming into contact with the photocurable transparent adhesive. A display module characterized by   2. The display module according to claim 1, wherein the barrier means is formed by increasing a printing thickness of the light shielding frame between a region overlapping the display region and a region of the light shielding frame overlapping the wiring substrate. A display module comprising a first barrier means.   3. The display module according to claim 2, wherein the first barrier means is in contact with the touch panel in a region of the light shielding frame that does not overlap the wiring board.   4. The display module according to claim 2, wherein the first barrier means is formed so that a predetermined portion surrounds a region of the light shielding frame that overlaps the wiring board. module.   5. The display module according to claim 1, wherein the barrier unit includes the light shielding frame along a boundary line between a region of the light shielding frame that overlaps the wiring substrate and a region that does not overlap the wiring substrate. 6. A display module comprising second barrier means provided to come into contact with the display module.   6. The display module according to claim 5, wherein the second barrier means includes a region along a boundary line between a region overlapping the wiring substrate and a region not overlapping the wiring substrate in the light shielding frame. And a display module provided so as to be in contact with the wiring board from the light shielding frame to the wiring board.   7. The display module according to claim 1, wherein the barrier means is formed by reducing a printing thickness of the light shielding frame in a region of the light shielding frame that does not overlap the wiring substrate. A display module comprising third barrier means.   8. The display module according to claim 1, wherein the barrier means includes fourth barrier means formed by digging a groove in the protective plate in a region overlapping the display region. Display module. A display panel;
A touch panel disposed on the front side of the display panel;
A display module comprising a protective plate attached to the front side of the touch panel via a photo-curing transparent adhesive and having a light shielding frame formed on the rear surface facing the touch panel,
A display module, wherein a flexible wiring substrate in which a base film in a region overlapping with the light shielding frame is transparent is bonded to the touch panel. A display panel;
A touch panel disposed on the front side of the display panel;
A display module comprising a protective plate attached to the front side of the touch panel via a photo-curing transparent adhesive and having a light shielding frame formed on the rear surface facing the touch panel,
A display module, wherein a flexible wiring board in which a through hole is provided so as to avoid a wiring portion is joined to the touch panel so that the through hole and the light shielding frame overlap each other.   11. The display module according to claim 1, wherein the display panel is a liquid crystal display panel or an organic EL display panel.

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