CN219574552U - Side-entering type backlight module with stable structure - Google Patents

Abstract

The utility model discloses a side-in type backlight module with stable structure, which comprises a back plate, a side-in type light source, an optical film plate component and a fixed frame, wherein the side-in type light source is arranged on the inner side surface of the back plate, the optical film plate component is arranged in a cavity on the inner side of the back plate, the fixed frame is fixed on the back plate, and the optical film plate component is pressed and fixed in the back plate; the optical film plate assembly comprises a light guide plate, and the light guide plate is fixed in the backboard through a first fixing clamping block; the first fixing clamping block comprises a lower mounting portion and a side clamping portion, a lower mounting groove is formed in the bottom of the inner side of the back plate, the lower mounting portion is matched with the lower mounting groove, the lower mounting portion is mounted in the lower mounting groove, the light guide plate is used for fixedly pressing the lower mounting portion in the lower mounting groove, and the side clamping portion is clamped between the side wall of the back plate and the light guide plate. The utility model is used for improving the stability and the use reliability of the side-entry backlight module structure.

Description

Side-entering type backlight module with stable structure

Technical Field

The utility model relates to the technical field of backlight modules, in particular to a side-in type backlight module with stable structure.

Background

A display is a commonly used electronic device, such as a television, a computer, an automobile, etc., equipped with the display. Most of the existing displays adopt liquid crystal displays, but the liquid crystal display cannot emit light autonomously, and a backlight source is required to be arranged to realize the display function of the liquid crystal display. The conventional backlight source includes a direct type backlight module and a side-entry type backlight module, wherein the side-entry type backlight module has the advantages of light and thin structure, and thus the side-entry type backlight module is widely used. The side-entering type backlight module comprises a back plate, a side-entering type light source, a light guide plate, an optical diaphragm and other structures, wherein the light guide plate is heavy in weight, and needs to be fixed by a limiting block and the like when being installed in the back plate. For example, the patent document 202121289826.6 discloses a backlight module capable of preventing silica gel from being tripped and a limiting block in a vehicle-mounted display device, which are inserted and fixed on a back plate, and the limiting block is unstable in the back plate, so that the stability of the light guide plate in the back plate is affected, and the reliability of the side-in type backlight module is affected.

Disclosure of Invention

The utility model provides a side-entry backlight module with a stable structure, which aims at solving the technical problems that a limiting block of the side-entry backlight module in the prior art is unstable in fixation in a back plate and influences the stability of fixation of a light guide plate in the back plate so as to influence the reliability of the side-entry backlight module.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the side-in type backlight module comprises a back plate, a side-in type light source, an optical film plate component and a fixing frame, wherein the side-in type light source is arranged on the inner side surface of the back plate, the optical film plate component is arranged in a cavity on the inner side of the back plate, the fixing frame is fixed on the back plate, and the optical film plate component is pressed and fixed in the back plate; the optical film plate assembly comprises a light guide plate, and the light guide plate is fixed in the backboard through a first fixing clamping block; the first fixing clamping block comprises a lower mounting portion and a side clamping portion, a lower mounting groove is formed in the bottom of the inner side of the back plate, the lower mounting portion is matched with the lower mounting groove, the lower mounting portion is mounted in the lower mounting groove, the light guide plate is used for fixedly pressing the lower mounting portion in the lower mounting groove, and the side clamping portion is clamped between the side wall of the back plate and the light guide plate.

Further, the lower mounting portion is adhered in the lower mounting groove.

Further, a side mounting groove is formed in the inner side wall of the backboard, the side mounting groove is matched with the side clamping part, and the side clamping part is mounted in the side mounting groove.

Further, the outside of the light guide plate is provided with a limiting plug block, the side wall of the inner side of the back plate is provided with a limiting slot, the limiting plug block is matched with the limiting slot, and the limiting plug block is inserted into the limiting slot.

Furthermore, a positioning groove is formed in the back plate, a positioning block is arranged on the outer side of the fixing frame, the positioning groove is matched with the positioning block, and the positioning block is fixedly bonded in the positioning groove.

Further, a fixed slot is formed in the inner side wall of the backboard, a fixed insert block is arranged on the outer side of the fixed frame, the fixed slot is matched with the fixed insert block, and the fixed insert block is inserted into the fixed slot.

Further, a fixed clamping groove is formed in the outer side wall of the backboard, a second fixed clamping block is arranged on the outer side of the fixed frame, the fixed clamping groove is matched with the second fixed clamping block, and the second fixed clamping block is arranged in the fixed clamping groove; the fixing clamping groove is internally provided with a fixing lug, the second fixing clamping block is provided with a fixing jack, the fixing lug is matched with the fixing jack, and the fixing lug is inserted into the fixing jack.

Further, the optical film plate assembly further comprises a reflecting film, and the reflecting film is fixedly adhered to the position, close to the side-entering type light source, of the light guide plate through a serrated double-sided adhesive.

Further, the optical film plate component further comprises a light diffusion film, a lower brightness enhancement film and an upper brightness enhancement film, wherein the light diffusion film, the lower brightness enhancement film and the upper brightness enhancement film are sequentially stacked on the light guide plate, positioning openings are formed in the light diffusion film, the lower brightness enhancement film and the upper brightness enhancement film, positioning columns are arranged on the light guide plate, the positioning openings are matched with the positioning columns, and the positioning columns are inserted into the positioning openings.

Further, the light guide plate, the light diffusion film, the lower brightness enhancement film and the lower brightness enhancement film are all adhered and fixed together through fixing double-sided adhesives.

The beneficial effects achieved by the utility model mainly comprise the following points: the side income formula backlight unit sets up first fixed fixture block and fixes the light guide plate, first fixed fixture block includes lower installation department and side chucking portion, and backplate inboard bottom is provided with down the mounting groove, install down the mounting portion in the mounting groove down, the light guide plate is further pressed down the mounting portion and is solid in lower mounting groove when the backplate is installed, can guarantee the stability of first fixed fixture block installation in the backplate from this, avoids first fixed fixture block to drop from the backplate. The side clamping part is clamped between the side wall of the back plate and the light guide plate, and the light guide plate is clamped in the cavity on the inner side of the back plate, so that the stability of the light guide plate fixed in the back plate and the reliability of the side-in type backlight module can be ensured.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of a side-entry backlight module according to an embodiment of the utility model;

FIG. 2 is a schematic view of a back plate with an angle according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

FIG. 4 is an enlarged schematic view of the portion B in FIG. 2;

FIG. 5 is a schematic structural view of a fixing clip block clamped outside a corner of a light guide plate according to an embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of a fixing clip block clamped outside a side edge of a light guide plate according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a back plate according to another embodiment of the present utility model;

FIG. 8 is an enlarged schematic view of the portion E in FIG. 7;

FIG. 9 is an enlarged schematic view of the portion F in FIG. 7;

fig. 10 is a schematic structural diagram of a light guide plate according to an embodiment of the utility model;

FIG. 11 is an enlarged schematic view of the portion C in FIG. 10;

FIG. 12 is an enlarged schematic view of the portion D in FIG. 10;

FIG. 13 is a schematic structural view of a fixing frame according to an embodiment of the present utility model;

fig. 14 is an enlarged schematic view of the portion G in fig. 13;

fig. 15 is an enlarged schematic view of the H portion in fig. 13;

FIG. 16 is a schematic view showing a structure of a reflective film according to an embodiment of the present utility model;

FIG. 17 is an enlarged schematic view of the portion I of FIG. 16;

FIG. 18 is a schematic view showing the structures of a light diffusing film, a lower brightness enhancement film and an upper brightness enhancement film according to an embodiment of the present utility model;

FIG. 19 is an enlarged schematic view of the J portion of FIG. 18;

fig. 20 is a schematic structural view of a fixing double sided tape according to an embodiment of the present utility model.

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present patent.

Detailed Description

For the purposes of explanation, numerous practical details are set forth in the following description, taken in conjunction with the accompanying drawings, to facilitate understanding of those of skill in the art. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. In addition, for ease of understanding, some well known and conventional structures and components are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indications such as up, down, left, right, front, and rear … … in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture such as that shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly. The use of terms such as "comprising," "including," "having," and variations thereof herein, are intended to encompass the elements listed thereafter and equivalents thereof as well as additional elements. Unless otherwise indicated, terms such as "mounted," "connected," "supported," and "coupled" and variations thereof are used in the broadest sense and encompass both direct and indirect combinations, connections, supports, and couplings. Furthermore, the terms "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

The description herein as relating to "first," "second," etc. is for descriptive purposes only and is not intended to specifically refer to order or sequence nor to limit the utility model, but is merely intended to distinguish between components or operations that are described in the same technical term and is not to be interpreted as indicating or implying a relative importance or implying any particular order of number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Example 1

Referring to fig. 1 to 6 and 10 to 12, a side-entry backlight module with stable structure can improve the stability of the light guide plate installed in the back plate. The side-in type backlight module comprises a back plate 1, side-in type light bars 2, an optical film plate component 3 and a fixing frame 4, wherein the back plate 1 is of a cavity structure with one side open, the side-in type light bars 2 are fixedly adhered to the inner side surface of the back plate 1 through heat conduction double-sided adhesives, the optical film plate component 3 is installed in the cavity of the inner side of the back plate 1, the fixing frame 4 is fixedly arranged on the back plate 1, and the optical film plate component 3 is fixedly pressed in the back plate 1, so that the whole side-in type backlight module can be formed. The optical film plate assembly 3 comprises a light guide plate 31, wherein the light guide plate 31 is fixed in the back plate 1 through a first fixed clamping block 5 and is supported in front of the side-entering type light bar 2 through a supporting column 37. The first fixing clamping block 5 comprises a lower mounting portion 51 and a side clamping portion 52, a lower mounting groove 11 is formed in the bottom of the inner side of the back plate 1, the lower mounting portion 51 is matched with the lower mounting groove 11, namely, the size and the appearance of the lower mounting portion 51 are consistent with those of the lower mounting groove 11, so that the lower mounting portion 51 is mounted in the lower mounting groove 11, the lower mounting portion 51 is further pressed and fixed in the lower mounting groove 11 when the light guide plate 31 is mounted in the back plate 1, and therefore the mounting stability of the first fixing clamping block 5 in the back plate 1 can be guaranteed, and the first fixing clamping block 5 is prevented from falling from the back plate 1. The side clamping part 52 is clamped between the side wall of the back plate 1 and the light guide plate 31, and clamps the light guide plate 31 in the cavity inside the back plate 1, so that the stability of the light guide plate fixed in the back plate and the reliability of the side-in type backlight module can be ensured. The first fixing clamping block 5 is arranged outside two corners of the light guide plate 31 far away from one side of the side-in type light bar 2 and outside two sides of the light guide plate, which are adjacent to the side-in type light bar 2, the first fixing clamping block 5 of the light guide plate 31 far away from the corner of one side of the side-in type light bar 2 adopts an L-shaped structure, and the first fixing clamping block 5 of the light guide plate 31 outside two sides of the side-in type light bar 2 adopts a straight structure. The first fixing clip 5 is preferably a silicone block, and the lower mounting portion 51 and the side clamping portion 52 of the first fixing clip 5 are integrally formed.

Referring to fig. 1 to 6, in order to further improve the stability of the first fixing clip 5 mounted in the back plate 1, the lower mounting portion 51 is adhered in the lower mounting groove 11, and may be adhered by a double sided adhesive tape. In addition, the side wall of the inner side of the back plate 1 is provided with a side mounting groove 12, the side mounting groove 12 is matched with the side clamping part 52, that is, the size and the shape of the side mounting groove 12 are consistent with those of the side clamping part 52, so that the side clamping part 52 is just mounted in the side mounting groove 12, and the first fixing clamping block 5 is further stably fixed in the back plate 1.

Referring to fig. 2, 3, 10 and 11, in order to further improve the stability of the installation of the light guide plate 31 in the back plate 1, a limiting insert block 311 is disposed on the outer side of the light guide plate 31, a limiting slot 13 is disposed on the inner side wall of the back plate 1, and the limiting insert block 311 is matched with the limiting slot 13, that is, the size, the shape and the position of the limiting insert block 311 are consistent with those of the limiting slot 13, so that the limiting insert block 311 can be just inserted in the limiting slot 13 when the light guide plate 31 is installed in the back plate 1, and the stability of the installation of the light guide plate 31 in the back plate 1 is further improved. The limiting insert 311 and the limiting slot 13 in this embodiment are disposed on a side of the back plate 1 opposite to the side-in light bar 2.

Referring to fig. 1 to 6, 10 and 11, in the production and assembly of the side-entry backlight module of this embodiment, the side-entry light bar 2 is fixed on the inner side surface of the back plate 1 by heat-conducting double-sided adhesive, the optical film plate assembly 3 is installed in the inner cavity of the back plate 1, the fixing frame 4 is fixedly installed on the back plate 1, and the optical film plate assembly 3 is pressed and fixed in the back plate 1. The light guide plate 31 of the optical film plate assembly 3 is fixed in the back plate 1 through the first fixing clamping block 5 when being installed on the back plate 1, the lower installation part 51 of the first fixing clamping block 5 is fixedly adhered in the lower installation groove 11 in the back plate 1, the side clamping part 52 of the first fixing clamping block 5 is installed in the side installation groove 12 in the back plate 1, and the side clamping part 52 clamps the light guide plate 31 in the inner side wall of the back plate 1.

Example two

Referring to fig. 1 to 15, the side-entry backlight module of the present embodiment is the same as the first embodiment in its entirety, and the fixing structure of the fixing frame 4 on the back plate 1 is improved based on the first embodiment, and the same as the first embodiment in this embodiment is referred to as the first embodiment, and the improvement will be further described.

Referring to fig. 7-9 and 13-15, the back plate 1 is provided with a positioning slot 14, the outer side of the fixing frame 4 is provided with a positioning block 41, the positioning slot 14 is matched with the positioning block 41, that is, the position, the size and the shape of the positioning slot 14 are consistent with those of the positioning block 41, so that when the fixing frame 4 is installed on the back plate 1, the positioning block 41 is just positioned and installed in the positioning slot 14, and the positioning block 41 is fixedly adhered in the positioning slot 14 through double-sided adhesive, so that the installation of the fixing frame 4 on the back plate 1 is positioned and fixed.

Referring to fig. 7-9 and 13-15, the inner side wall of the back plate 1 is provided with a fixing slot 15, the outer side of the fixing frame 4 is provided with a fixing insert 42, the fixing slot 15 is matched with the fixing insert 42, that is, the position, size and shape of the fixing slot 15 are consistent with those of the fixing insert 42, so that when the fixing frame 4 is installed on the back plate 1, the fixing insert 42 is just inserted into the fixing slot 15, the fixing frame 4 is further fixed on the inner side of the back plate 1, and external scraping of the fixing frame 4 is avoided.

Referring to fig. 7-9 and 13-15, a fixing slot 16 is provided on the outer sidewall of the back plate 1, a second fixing block 43 is provided on the outer side of the fixing frame 4, and the fixing slot 16 is matched with the second fixing block 43, that is, the position, size and shape of the fixing slot 16 are consistent with those of the second fixing block 43, so that when the fixing frame 4 is mounted on the back plate 1, the second fixing block 43 can be just mounted in the fixing slot 16. In addition, the fixing slot 16 is provided with a fixing protrusion 17, the second fixing block 43 is provided with a fixing jack 44, and the fixing protrusion 17 is matched with the fixing jack 44, that is, the position, size and shape of the fixing protrusion 17 are consistent with those of the fixing jack 44, so that the second fixing block 43 is just inserted into the fixing jack 44 when being installed in the fixing slot 16, and the fixing frame 4 is further fixed on the back plate 1.

Referring to fig. 1, 7-9 and 13-15, in the present embodiment, the positioning groove 14 and the positioning block 41 are disposed on one side of the side-entry light bar 2 of the backlight module and two sides adjacent to the side-entry light bar 2, the fixing slot 15 and the fixing insert 42 are also disposed on one side of the side-entry light bar 2 of the backlight module and two sides adjacent to the side-entry light bar 2, and the fixing slot 16 and the second fixing block 43 and the fixing protrusion 17 and the fixing insertion hole 44 are disposed on one side opposite to the side-entry light bar 2 of the backlight module. In addition, a circle of shading adhesive 81 is further arranged on the inner side of the fixed frame 4, and the side, opposite to the side-in type light bar 2, of the fixed frame 4 is further adhered and fixed on the back plate 1 through a fixed double-sided adhesive 82.

Example III

Referring to fig. 1 to 20, the side-entry backlight module of the present embodiment is the same as the first embodiment in its entirety, and the optical film assembly 3 and its mounting structure on the back plate 1 are improved based on the second embodiment, and the same as the second embodiment in this embodiment is referred to as the second embodiment, and the improvement will be further described below.

Referring to fig. 1, 16 and 17, the optical film plate assembly 3 further includes a reflective film 32, and the reflective film 32 is adhesively fixed to the light guide plate 31 near the side-entering light bar 2 by using a serrated double-sided tape 6. The toothed double-sided adhesive tape 6 adopts high-reflectivity white adhesive tape, so that the reflecting film 32 and the light guide plate 31 can be bonded together through the toothed double-sided adhesive tape 6, and the brightness of the position between adjacent LED lamps above the side-entrance type light bar 2 can be improved, so that the visual effect of the side-entrance type backlight module is optimized.

Referring to fig. 1 and 18-20, the optical film plate assembly 3 further includes a light diffusing film 33, a lower brightness enhancement film 34, and an upper brightness enhancement film 35, where the light diffusing film 33, the lower brightness enhancement film 34, and the upper brightness enhancement film 35 are sequentially stacked on the light guide plate 31, and the upper brightness enhancement film 35 is a DBEF film. The light-diffusing film 33, the lower brightness enhancement film 34 and the upper brightness enhancement film 35 are provided with positioning openings 36, the light guide plate 31 is provided with positioning columns 312, the positioning openings 36 are matched with the positioning columns 312, namely, the positions, the sizes and the shapes of the positioning openings 36 are consistent with those of the positioning columns 312, so that the positioning columns 312 are just inserted into the positioning openings 36, and the light-diffusing film 33, the lower brightness enhancement film 34 and the upper brightness enhancement film 35 are positioned and installed on the light guide plate 31. The light guide plate 31 and the light dispersion film 33, the light dispersion film 33 and the lower brightness enhancement film 34, and the lower brightness enhancement film 34 and the upper brightness enhancement film 35 are adhered and fixed together by the double sided adhesive tape 7. Whereby the light diffusion film 33, the lower and upper light enhancement films 34 and 35 can be fixed together with the light guide plate 31.

Referring to fig. 1, the fixing frame 4 is further provided with a foam rubber 91 and a protective film 92, the upper light enhancement film 35 can be protected by the protective film 92 before the side-entry backlight module is mounted on the liquid crystal display, and the protective film 92 is torn off when the side-entry backlight module is mounted on the liquid crystal display.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A side-entering type backlight module with stable structure is characterized in that: the light source module comprises a back plate (1), a side-in light source (2), an optical film plate component (3) and a fixing frame (4), wherein the side-in light source (2) is arranged on the inner side surface of the back plate (1), the optical film plate component (3) is arranged in an inner cavity of the back plate (1), the fixing frame (4) is fixed on the back plate (1), and the optical film plate component (3) is pressed and fixed in the back plate (1); the optical film plate assembly (3) comprises a light guide plate (31), and the light guide plate (31) is fixed in the backboard (1) through a first fixing clamping block (5); the first fixing clamping block (5) comprises a lower mounting portion (51) and a side clamping portion (52), a lower mounting groove (11) is formed in the bottom of the inner side of the back plate (1), the lower mounting portion (51) is matched with the lower mounting groove (11), the lower mounting portion (51) is mounted in the lower mounting groove (11), the lower mounting portion (51) is pressed and fixed in the lower mounting groove (11) by the light guide plate (31), and the side clamping portion (52) is clamped between the side wall of the back plate (1) and the light guide plate (31).

2. The structurally stable side entry backlight module according to claim 1, wherein: the lower mounting part (51) is adhered in the lower mounting groove (11).

3. The structurally stable side entry backlight module according to claim 2, wherein: the side mounting groove (12) is formed in the inner side wall of the back plate (1), the side mounting groove (12) is matched with the side clamping part (52), and the side clamping part (52) is arranged in the side mounting groove (12).

4. The structurally stable side entry backlight module according to claim 1, wherein: the light guide plate (31) outside is provided with spacing inserted block (311), be provided with spacing slot (13) on backplate (1) inboard lateral wall, spacing inserted block (311) and spacing slot (13) looks adaptation, spacing inserted block (311) are pegged graft in spacing slot (13).

5. The structurally stable side entry backlight module according to any one of claims 1 to 4, wherein: the backboard (1) is provided with a positioning groove (14), the outer side of the fixing frame (4) is provided with a positioning block (41), the positioning groove (14) is matched with the positioning block (41), and the positioning block (41) is fixedly adhered in the positioning groove (14).

6. The structurally stable side entry backlight module according to claim 5, wherein: the novel backboard is characterized in that a fixed slot (15) is formed in the inner side wall of the backboard (1), a fixed insert block (42) is arranged on the outer side of the fixed frame (4), the fixed slot (15) is matched with the fixed insert block (42), and the fixed insert block (42) is inserted into the fixed slot (15).

7. The structurally stable side entry backlight module according to claim 6, wherein: a fixed clamping groove (16) is formed in the outer side wall of the back plate (1), a second fixed clamping block (43) is arranged on the outer side of the fixed frame (4), the fixed clamping groove (16) is matched with the second fixed clamping block (43), and the second fixed clamping block (43) is arranged in the fixed clamping groove (16); the fixing clamp comprises a fixing clamp body and is characterized in that a fixing lug (17) is arranged in a fixing clamp groove (16), a fixing insertion hole (44) is formed in a second fixing clamp block (43), the fixing lug (17) is matched with the fixing insertion hole (44), and the fixing lug (17) is inserted into the fixing insertion hole (44).

8. The structurally stable side entry backlight module according to claim 7, wherein: the optical film plate assembly (3) further comprises a reflecting film (32), and the reflecting film (32) is fixedly adhered to the position, close to the side-entering type light source (2), of the light guide plate (31) through the serrated double faced adhesive tape (6).

9. The structurally stable side entry backlight module according to claim 8, wherein: the optical film plate assembly (3) further comprises a light scattering film (33), a lower intensifying film (34) and an upper intensifying film (35), the light scattering film (33), the lower intensifying film (34) and the upper intensifying film (35) are sequentially overlapped on the light guide plate (31), positioning openings (36) are formed in the light scattering film (33), the lower intensifying film (34) and the upper intensifying film (35), positioning columns (312) are arranged on the light guide plate (31), the positioning openings (36) are matched with the positioning columns (312), and the positioning columns (312) are spliced in the positioning openings (36).

10. The structurally stable side entry backlight module according to claim 9, wherein: the light guide plate (31) and the light dispersion film (33), the light dispersion film (33) and the lower intensifying film (34) and the upper intensifying film (35) are adhered and fixed together through the fixing double faced adhesive tape (7).