JP2000315057A - Manufacture of flat display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate handling of the flat display device, and to prevent it from being damaged. SOLUTION: A holder l is provided with a pair of almost rectangular holding members 2, 3, and is used for holding a display device between the holding members 2, 3. In the holding face 2a of the holding member 2 located on the screen side of the display device, an opening part 5 is formed in the area corresponding to the display area of the display device to be held. When the holding members 2, 3 are closed, an insertion port for inserting a backlight module is formed. When the backlight module is inserted, the light from a light source is made uniformly incident on the display area of the display panel. The light from the display panel is made to exit from an opening part 5 formed in the holding member 2. Thus, the display state can be inspected by keeping the device held by the holder 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a transmissive flat display device used as a display means of, for example, a desktop word processor, a car navigation system, and a television integrated with a video tape recorder.

[0002]

2. Description of the Related Art FIG. 16 is a perspective view showing a conventional holder 61. As shown in FIG. FIG. 17 is a perspective view showing the back surface of the display device 71 held by the holder 61. Holder 61
Is configured to include a pair of holding members 62 and 63, and the display device 71 is sandwiched between the pair of holding members 62 and 63. One side surface 62b, 63 of a pair of holding members 62, 63
b are connected by a hinge portion 64. One of the pair of locking members 67, 68, which are locked to each other, is provided on the surfaces 62a, 63a of the holding members 62, 63 on the side of holding the display device 71 (hereinafter referred to as "holding surfaces").
And the other locking member 68 are provided. Also, one side surface 62b, 6 provided with the hinge portion 64 is provided.
On the other side surface 62c, 63c opposite to 3b, one locking member 6 of a pair of locking members 69, 70 locked to each other.
9 and the other locking member 70 are provided. Openings 65 and 66 are formed in the holding members 62 and 63 in regions corresponding to the display region of the display device 71 to be sandwiched.

The display device 71 is realized by, for example, a liquid crystal display device, and includes a liquid crystal display panel 72 having a display area 72a and an IC (Integrated Circuit) chip 73 for driving the liquid crystal display panel 72 as shown in FIG. It includes a mounted tape carrier package (hereinafter, referred to as “TCP”) 74 and a rigid circuit board 75. A terminal for inputting a signal for display is drawn out from a peripheral portion of the liquid crystal display panel 72, and a connection terminal of the TCP 74 is connected to the terminal. The TCP 74 is disposed between the liquid crystal display panel 72 and the hard circuit board 75 disposed on the periphery of the liquid crystal display panel 72 on the display surface side, and is electrically connected to the liquid crystal panel 72 as described above. With
The hard circuit board 75 is also electrically connected. From the rigid circuit board 75, a signal cable 76 realized by a flexible wiring board is drawn out.
, A signal for the display is supplied from an external circuit.

As shown in FIG. 16, such a display device 71 is arranged on the holding surface 62a of one holding member 62 with the holding members 62 and 63 of the holding member 61 opened, and the other holding member 63 Close. By locking the locking members 67, 68 and the locking members 69, 70, the display device 7
1 is held by the holder 61. At this time, the holding member 6
Since the openings 65 and 66 are formed in the panels 2 and 63, the display area of the display device 71, that is, the display area 72a of the liquid crystal display panel 72 is exposed.

A holder 61 having such a configuration is proposed in Japanese Patent Application No. 5-328885 filed by the present applicant.
It is suitably used in the manufacturing process and the transportation process of the display device 71. For example, in an inspection step of inspecting the display characteristics of the display device 71, which is one of the manufacturing steps, it is used as follows.

The display device 71 held by the holder 61 is
It is arranged on the light source of the inspection device prepared for the inspection. At this time, the other holding member 63 of the holding tool 61 is arranged facing the light source side. The light from the light source enters the display area 72a from the opening 66 of the other holding member 63, and the light transmitted through the liquid crystal display panel 72 exits from the opening 65 of the one holding member 62. A test signal is given via the signal cable 76 to check the display state. by this,
Even with a display device having relatively low mechanical strength, handling becomes easy and work efficiency is improved. Further, damage to the display device is reduced. Therefore, manufacturing costs are reduced.

[0007]

In recent years, for example, a desk-top type word processor, an in-vehicle navigation system, a television integrated with a video tape recorder and the like using a display device have been required to be reduced in size and thickness. Accordingly, a display device mounted on such an electronic device is also required to be reduced in size and thickness. From this, a display device in which the ratio of the display region to the total area of the display surface side of the display device is large, that is, a display device in which the area of the peripheral portion of the display region 72a in which the TCP 74 and the hard circuit board 75 are provided is relatively small Is required.

In the display device having a relatively small peripheral area, a flexible wiring board is used to connect the display panel to the rigid circuit board, and the flexible circuit board is bent to connect the rigid circuit board to the display surface of the display panel. It can be easily realized by arranging it on the opposite side. Further, miniaturization and thinning of the display device can be easily realized by using an edge-light type backlight module in place of the direct-view type backlight module in the above-described transmissive display device. In the direct-view type backlight module, the light source is arranged in an area corresponding to almost the entire display area.However, in the edge-light type backlight module, light from the light source is almost completely covered by a light guide plate or the like. Since the light is guided to the entire surface, the above-described downsizing and thinning can be realized.

In a transmissive display device in which a rigid circuit board is disposed on the side opposite to the display surface using the above-described flexible wiring substrate, light from the backlight module irradiates the entire display area. The backlight module is arranged between the display panel and the rigid circuit board.

In the display device thus made smaller and thinner, the display device before the backlight module is incorporated is held by the holder 61, and the display state inspection as described above is performed. In this case, the light from the light source of the inspection apparatus is blocked by the hard circuit board disposed on the side opposite to the display surface, and the entire display area is not uniformly irradiated with the light.

Therefore, in this case, the display device is connected to the holder 6.
1 and must be inspected. If the mechanical strength is relatively low, the display device may be damaged.
In addition, it must be handled so as not to be damaged, and the working efficiency is reduced. Furthermore, they cause an increase in manufacturing costs.

An object of the present invention is to provide a method of manufacturing a flat display device which can be easily handled and can be prevented from being damaged.

[0013]

According to the present invention, there is provided a method of manufacturing a flat display device, comprising: a display panel having a predetermined display area; a drive circuit board having a drive circuit for applying a display signal to the display panel; Manufacture of a flat panel display device in which a circuit board is disposed on a side opposite to a display surface of a display panel and a flexible substrate for electrically connecting the drive circuit board and the display panel is held by a holder and handled in a manufacturing process In the method, the holding tool includes a pair of holding members that are arranged on the display surface side of the display panel and the opposite side to the display surface side and sandwich the flat display device, and of the pair of holding members, The holding member located on the display surface side of the display panel, a region corresponding to the display area is a light-transmitting region, and one of the pair of holding members,
When one of the pair of holding members is arranged to face each other, one of the pair of locking members is locked, and the other holding member has the other locking member. When the stop member is locked, by the pair of holding members,
An insertion opening for inserting a light source is formed on the side opposite to the display surface of the display panel, and the display state is inspected while the light source is inserted from the insertion opening and held by the holder. And

Further, the surface resistance of at least the holding surface of the pair of holding members for holding the flat panel display device is selected in the range of 10 ⁶ Ω to 10 ⁹ Ω.

According to the present invention, the flat display device is sandwiched between a pair of holding members of the holder and handled in, for example, a manufacturing process and a transporting process. One of the pair of holding members has one of the pair of locking members locked together, and the other holding member has the other locking member. By holding the flat display device between the pair of holding members and locking the pair of locking members, the flat display device is arranged and held at a predetermined position of the holder without displacement. Of the pair of holding members, the holding member located on the display surface side of the display panel is a light-transmitting region corresponding to the display area of the display panel, and when the pair of locking members is locked, An insertion opening for inserting a light source is formed on the opposite side of the display panel from the display surface by the pair of holding members. When the flat display device is held by such a holder and the display state is inspected in an inspection step, which is one of the manufacturing steps, a light source is inserted from the insertion port and light is emitted. Light from the light source is applied to the display area of the display panel, and light transmitted through the display panel is emitted from the light-transmitting area of the holding member on the display surface side.

Therefore, even if the flat display device is made smaller and thinner by arranging the hard circuit board on the side opposite to the display surface of the display panel using the flexible wiring board, the light from the light source can be reduced. Is applied to the entire display area. For this reason, the display state can be inspected while being held by the holder, and the handling of the flat display device is facilitated, and the damage of the flat display device is reduced.

Preferably, the surface resistance of at least a holding surface of the pair of holding members for holding the flat panel display device is:
An antistatic function is added in the range of 10 ^{6 to} 10 ⁹ Ω. This is realized, for example, by adding an antistatic agent to the material forming the holding member and adjusting the surface resistance of the holding member to fall within the above range. Thus, the flat display device can be protected from destruction due to static electricity.

Preferably, the holding member having no light-transmitting region among the pair of holding members has a guide member for inserting a light source at a predetermined position corresponding to the display region. Since the guide member is easily inserted at the optimum position, the display state can be inspected efficiently.

Preferably, the driving circuit board of the flat display device has a connector portion to which a signal cable is connected, and the holding member having no light-transmitting region has an opening through which the connector portion is exposed; And a guide member for guiding the signal cable to the connector portion. Therefore, when inspecting the display state, the signal cable for inputting the inspection signal can be connected while the flat display device is held by the holder, and can be easily connected by the guide member. .

Preferably, one of the pair of holding members is fitted with one of a pair of fitting members fitted together when the pair of locking members is locked. The other holding member has a mating member. Therefore, the pair of fitting members perform a guiding function and a positioning function when the flat display device is held between the pair of holding members, and the flat display device is easily and reliably held between the pair of holding members. Can be.

Preferably, the locking member of the holding member is formed on a side of a holding surface for holding the flat panel display. After arranging the flat panel display between the pair of holding members, a pressure is applied to the pair of holding members in a direction in which the holding members come close to each other in accordance with a pressure instruction mark formed on an outer surface opposite to the holding surface. , The locking member is locked. Since the position where pressure is applied is clarified by the pressing instruction mark, the application of pressure to the easily breakable portion of the flat panel display device is reduced.

Preferably, since the holding member has a light absorbing property, unnecessary light of the light from the light source is absorbed by the holding member when a display state is inspected by inserting a light source. . For this reason, the light irregularly reflected by the holding member does not enter the display area of the display panel, and the display state can be inspected accurately, and the reliability of the inspection result is improved.

[0023]

FIG. 1 is a perspective view showing a state in which holding members 2 and 3 of a holder 1 according to an embodiment of the present invention are opened. FIG. 2 is a perspective view showing a state where the holding members 2 and 3 of the holder 1 are closed. FIG. 3 is an enlarged perspective view showing the pair of locking members 7 and 8 respectively. As shown in FIG. 1, the holder 1 includes a pair of substantially rectangular holding members 2 and 3.
And a display device described later is sandwiched between the holding members 2 and 3 for use. One side surfaces 2b, 3b of the holding members 2, 3 are connected to each other by a hinge portion 4. In the present embodiment, they are connected by two hinge portions 4.

One surface (hereinafter, referred to as a “holding surface”) 2a, 3a of the holding members 2, 3 on the side of holding the display device is a plurality (four in this embodiment) of a pair of locking members 7, 8, And a plurality (two in this embodiment) of a pair of fitting members 11 and 12. The holding surface 2a has one locking member 7 and one fitting member 11, and the holding surface 3a has the other locking member 8 and the other fitting member 12. The locking members 7 and 8 are
3 at four corners. Fitting member 11,
Numerals 12 are respectively provided at the corners on the side where the hinge 4 is not attached.

The holding surfaces 2a and 3a of the holding members 2 and 3 have projections 13 and 14 for fixing the held display device so as not to be displaced. The holding surface 2a has a convex portion 13, and the holding surface 3a has a convex portion 14. A plurality (four in the present embodiment) of the projections 13 and 14 are provided, and the locking members 7 and 8 are provided.
In the same manner as described above, they are provided at four corners of the holding members 2 and 3, respectively.

The holding member 2 located on the display surface side of the display device
An opening 5 is formed in an area corresponding to the display area of the display device to be held in the holding surface 2a. An opening 6 is formed in a region corresponding to the connector portion of the display device in the holding member 3 located on the surface opposite to the display surface of the display device.

As shown in FIG. 2, when the holding members 2 and 3 are closed, the one side surfaces 2b and 2b of the holding members 2 and 3 are closed.
The other side surface 2c, 3c opposite to 3b forms an insertion opening 17 for inserting a backlight module. Therefore, the other side surfaces 2c, 3c of the holding members 2, 3
Are formed with notches 17a and 17b, respectively. The backlight module includes a holding surface 3 of the holding member 3.
The guide member 16 is easily inserted into a predetermined position corresponding to the display area of the display device. The guide member 16 of this embodiment is formed so that its height increases from the other side surface 3c to the one side surface 3b.

A plurality of (four in the present embodiment) pressure instruction marks 18 are respectively provided on the other surfaces (hereinafter referred to as "outer surfaces") 2f and 3f opposite to the holding surfaces 2a and 3a on the display device side. Is attached. The pressurizing instruction mark 18 includes a mark 18a indicating that pressure is applied, and an arrow 18b indicating a position where pressure is applied, and is provided near the locking members 7, 8. This mark 18 is attached to the holding members 2 and 3
Is pressed in the direction in which the locking members 7 and
8 is locked.

Also, the side surfaces 2b, 3b,
Opposite side surfaces 2d, 3d, which are different from 2c, 3c,
2e and 3e have a pair of locking members 9 and 10, respectively. In this embodiment, one locking member 9, 10 is provided on one side 2d, 3d side, and one locking member 9, 10 is provided on the other side 2e, 3e side. One side locking member 9 is formed on the side surfaces 2d and 2e on the holding member 2 side, and the other side locking member 10 is formed on the side surfaces 3d and 3e on the holding member 3 side. When the holding members 2 and 3 are closed, the locking members 7 and 8 are locked and the locking members 9 and 10 are also locked.

FIG. 4 is a cross-sectional view for explaining the engagement state of the locking members 7, 8, 9, and 10. As shown in FIG. 4A, the locking members 7 are parallel to each other. And two protrusions 7a, 7b formed in a direction protruding from the surface of the holding member 2, and the interval between the protrusions 7a, 7b is formed so as to become wider toward the tip end. I have.
Further, the locking members 8 are arranged in parallel with each other, and are formed with two protruding portions 8 formed in a direction protruding from the surface of the holding member 3.
a, 8b, and the interval between the protruding portions 8a, 8b is formed so as to become narrower toward the tip end, opposite to the locking member 7. In addition, the locking members 9 and 10 are
3 has projecting portions 9a and 10a respectively formed in a direction projecting from the surface of the projection 3.

When the position indicated by the pressure indicating mark 18 is pressed in the direction of arrow 19a, that is, in the direction in which the holding members 2 and 3 approach each other, as shown in FIG. , 8b are fitted with the protruding portions 7a, 7b, and the protruding portions 7a, 7
The locking members 7, 8 are locked by b, 8a, 8b.
Further, the protruding portions 9a and 10a are engaged with each other. Thus, the holding members 2 and 3 are closed. On the other hand, when the holding members 2 and 3 are opened, the force in the direction of the holding member 2 in which the locking member 9 is formed is applied to the locking member 9 in the direction of the holding member 3 in which the locking member 10 is formed. Apply each force. Thereby, the holding members 2 and 3 move in the direction of arrow 19b, that is, the holding members 2 and 3 move away from each other.

FIG. 5 is an exploded perspective view showing the structure of the display device 21 held by the holder 1. As shown in FIG. FIG. 6 is a perspective view showing the surface of the display device 21. FIG. 7 shows the display device 2
1 is a perspective view showing the back surface of FIG. 1. FIG. 8 is an enlarged side view showing the rigid circuit board 29 of the display device 21. The display device 21 includes a display panel 22, flexible wiring boards 23 and 24 on which an IC chip 25 is mounted, a frame 26, and a rigid circuit board 29.

The display panel 22 is realized by, for example, a transmissive display panel such as a liquid crystal display panel, and a terminal for inputting a signal for display is drawn out from a peripheral portion thereof. In this embodiment, two adjacent display panels 22 are arranged.
The terminals are led out to the two side surfaces 22b and 22c, and the terminals of the flexible wiring boards 23 and 24 are connected to the terminals. The display panel 22 has a predetermined display area 22 a, which corresponds to the display area of the display device 21.

On the opposite side of the display panel 22 from the display surface,
A rectangular frame 26 holding the display panel 22 is arranged. An opening 26 a is formed in the frame 26 in a region corresponding to the display region 22 a of the display panel 22. The four corners of the frame 26 are provided with insertion holes 27 through which the projections 14 are inserted when held by the holder 1. The frame 26 has a cutout 31 for inserting a backlight module between the display panel 22 and the rigid circuit board 29. The notch 31 is formed on a side surface 26b of the display panel 22 that is different from the side surface on which the flexible wiring boards 23 and 24 are arranged.

On the opposite side of the frame 26 from the display panel 22, a hard circuit board 29 is disposed at a position corresponding to the flexible wiring boards 23 and 24 on which the IC chip 25 is mounted.

The flexible wiring boards 23, 24 and the rigid circuit board 29 are connected to the positioning holes 23a, 23 formed in the boards 23, 24, 29 and the frame 26.
b, 24a, 28, 29a, 29b are positioned and connected. The one side surface 22b of the display panel 22 has the insertion holes 23a, 28, 29a,
23b, and the other side surface 22c is similarly connected in order from the display surface side in the order of the insertion holes 29b, 24a. As described above, by using the flexible wiring boards 23 and 24, the rigid circuit board 29 can be arranged on the side opposite to the display surface of the display panel 22, and the size of the display device 21 can be reduced. The rigid circuit board 29 is provided with a connector section 30 on the opposite side of the rigid circuit board 29 from the frame 26, to which a signal for display from an external circuit is applied.

FIG. 9 is a perspective view showing a state where the display device 21 is arranged with the holding members 2 and 3 of the holder 1 opened. FIG. 10 is an enlarged cross-sectional view illustrating a state where the protrusion 14 is inserted into the insertion hole 27. FIG. 11 shows the display device 21.
In a state where the holding members 2 and 3 of the holder 1 are closed by disposing
FIG. 3 is a perspective view showing a back surface of the holder 1. When holding the display device 21 as described above on the holder 1, first, the holder 1
When the holding members 2 and 3 are opened, the display surface of the display device 21 is on the holding member 2 side, and the side opposite to the display surface is on the holding member 3 side. Deploy. At this time, the projection 14 of the holding member 3 is inserted into the insertion hole 27 of the frame 26 of the display device 21.

As shown in FIG. 10, the projection 14 comprises a truncated cone-shaped projection 14a and a columnar projection 14b whose diameter is smaller than the smallest diameter of the projection 14a. The projection 14b is provided on the projection 14a. The insertion hole 27 includes a circular insertion hole 27a and a circular insertion hole 27b whose diameter is smaller than the diameter of the insertion hole 27. The insertion hole 27a is formed on the insertion hole 27b. When the display device 21 is arranged on the holding member 3,
First, the insertion hole 27a is guided along the protrusion 14b. At this time, by forming the diameter of the insertion hole 27a to be larger than the diameter of the protrusion 14b, the display device 21 can be smoothly guided. Next, the convex portion 14b is inserted into the insertion hole 27b, and the convex portion 14a is inserted into the insertion hole 27a. By making the diameters of both approximately the same, the display device 21 rattles in the horizontal direction with respect to the display surface. Can be fixed without the need. As described above, the step portion between the convex portions 27a and 27b, the insertion holes 27a and the insertion holes 27b
The position of the display device 21 is determined by the contact of the step portion with the step portion.

Subsequently, when the holding members 2 and 3 are closed as described above, the pair of fitting members 11 and 12 are fitted, and the locking members 7 and 8 and the locking members 9 and 10 are locked. . At this time, the projection 13 provided on the holding member 2 comes into contact with a portion where the insertion hole 27 is formed. Therefore, the display device 21 can be fixed without rattling in the vertical direction with respect to the display surface.

As shown in FIG. 11, the rigid circuit board 29 of the display device 21 is opened from the opening 6 of the holding member 3.
Is exposed. A guide member for guiding the signal cable to the connector portion 30 is provided on the outer surface 3f of the holding member 3 opposite to the holding surface 3a in order to easily connect the signal cable to the connector portion 30 exposed from the opening 6. 20 are formed.

When the holding members 2 and 3 are closed,
Insertion holes 15a, 1 provided in holding members 2, 3, respectively
5b coincide with each other, and an insertion hole 15 communicating from the holding member 2 to the holding member 3 is formed. The insertion hole 15 is used when inspecting a display state, and is used, for example, for aligning viewing angles when inspecting a plurality of display devices. As a result, variations in the inspection results can be reduced.

FIG. 12 is a cross-sectional view taken along the line II of FIG. 11. The display device 21 is held by the holder 1 as described above. Each state in the inspection process, which is one process, is shown. FIG. 12A shows a state before the backlight module 32 is inserted, and FIG. 12B shows a state where the backlight module 32 is inserted.

As shown in FIG. 12A, the holder 1 holding the display device 21 has an insertion port 17 into which the backlight module 32 is inserted. From this insertion opening 17, for example, an edge light type backlight module 32 is inserted. The backlight module 32
The light source 33, the reflection plate 34, and the light guide plate 35 are included. The light source 33 is provided at one end of the light guide plate 35, and the light from the light source 33 is reflected by the reflection plate 34 and enters the light guide plate 35. The light guide plate 35 uniformly irradiates the light from the light source 33 to almost the same area as the display area of the display panel 22. The thickness of the light guide plate 35 is reduced from one side where the light source 33 is provided to the other side opposite to the one side, and the thickness of the insertion port 1 is reduced from the other side.
7 is inserted. The light guide plate 35 is guided by the guide member 16 formed on the holding member 3 and inserted into the display panel 22 on the side opposite to the display surface. Thus, when the backlight module 32 is inserted, the light from the light source 33 uniformly enters the display area of the display panel 22.
Light from the display panel 22 is emitted from the opening 5 formed in the holding member 2.

Since the distance between the holding member 2 and the holding member 3 is reduced from the insertion port 17 side to the opposite side from the insertion port 17 by the guide member 16, the light guide plate 35 of the backlight module 32 is , Is mounted on the opposite side of the display panel 22 from the display surface, and is mounted without rattling.

FIG. 13 is a perspective view showing a method of connecting the signal cable 36. FIG. 14 is an enlarged cross-sectional view showing the vicinity where the signal cable 36 is connected to the connector unit 30. The signal cable 36 is for providing a display signal for inspection to the display device 21 from an external circuit when inspecting the above-described display state, and is realized by, for example, a flexible wiring board. Note that a polyester plate of, for example, about 0.3 mm is attached to the tip portion 37 for reinforcement. By inserting such a signal cable 36 into the connector section 30 along the guide member 20,
The terminal portion of the connector section 30 is connected to the terminal portion of the distal end portion 37 of the signal cable 36, and an inspection signal from an external circuit is supplied via the signal cable 36.

The guide member 20 is formed so that its height gradually decreases toward the connector portion 30 so that the distal end portion 37 of the signal cable 36 can be easily inserted into the connector portion 30. In the vicinity of the connector section 30, the height is further reduced. In this embodiment, four such guide members 20 are provided at intervals, but the guide members 20 are connected to the signal cable 36 as described above.
Any shape may be used as long as the tip portion 37 has a shape that allows easy insertion into the connector portion 30.

As described above, according to the present embodiment, the rigid circuit board 29 is arranged on the side opposite to the display surface of the display panel 22, and the edge-light type backlight module 32
Even if the display device 21 is downsized and thinned by mounting the, the inspection of the display state can be performed while being held by the holder 1. Therefore, handling of the display device 21 becomes easy, and the possibility that the display device 21 is damaged is reduced. For this reason, work efficiency is improved and manufacturing costs are reduced.

The holding members 2 and 3 of the holder 1 are formed by, for example, an injection molding method. As a material to be used, for example, polypropylene is used. At this time, an antistatic function can be added to the holding members 2 and 3 by adding an antistatic agent to the material. Can be protected from destruction. As the antistatic agent, for example, a carbon-based antistatic agent can be used. The surface resistance of at least the holding surfaces 2a, 3a of the formed holding members 2, 3 is 10
^It is preferable to be in the range of ⁶ Ω or more and 10 ⁹ Ω or less. By adding the antistatic agent in such a range, a good antistatic function can be added. If the surface resistance is 10 ⁹ Ω or less, a sufficient antistatic effect can be obtained. When the surface resistance is smaller than 10 ⁶ Ω, the surface resistance becomes conductive, and the IC chip 25, the flexible wiring board 23 and the rigid circuit board 2 become conductive.
Short-circuit occurs with interior parts such as 9.

Further, by adding light absorbing properties to the holder 1, the backlight module 3 can be used at the time of inspection.
Irregular reflection of the light from 2 is eliminated, the inspection can be performed accurately, and the reliability of the inspection result is improved. Such addition of light absorbency can be realized by making the holder 1 dark, and is easily realized, for example, by adding a carbon-based antistatic agent to add an antistatic function as described above. be able to.

The locking members 7, 8 and the locking members 9, 10
The positions and numbers of the fitting members 11 and 12 are not limited to those in the present embodiment, and may be formed at any positions as long as vibration and impact on the held display device 21 can be sufficiently prevented. Any number may be used. Further, the one locking member 7 may be formed on the other holding member 3 and the other locking member 8 may be formed on the one holding member 2, respectively. The same applies to the locking members 9, 10 and the fitting members 11, 12. .

FIG. 15 is a perspective view showing an example in which a direct-view type backlight module 41 is mounted on the holder 1 of this embodiment. The direct-view backlight module 41 includes a light source 42 and a reflector 43. The light source 42 is, for example, 1
The fluorescent lamps are bent and arranged in a region having substantially the same area as the display region, and the light from the light source 42 is reflected by the reflector 43 and irradiated in one direction. Such a direct-view type backlight module 41 can be inserted from the insertion opening 17 of the holder 1 of the present embodiment. This can be implemented in the case of a display device that does not require relatively thinning. During the inspection of the display state, the light from the light source 42 reflected by the reflection plate 43 enters the display area 22a of the display panel 22.

[0052]

As described above, according to the present invention, even if the flat display device held by the holder is a small and thin display device, the light source inserted into the holder can be used. Is applied to the entire display area of the display panel, the display state of the flat display device can be inspected while being held by the holder, and the flat display device can be easily handled.
Moreover, the possibility of breakage is reduced. Therefore, the working efficiency is improved and the manufacturing cost is reduced.

Further, the flat display device held by adding the antistatic function can be protected from destruction by static electricity.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which holding members 2, 3 of a holder 1 according to one embodiment of the present invention are opened.

FIG. 2 is a perspective view showing a state in which holding members 2 and 3 of the holder 1 are closed.

FIG. 3 is an enlarged perspective view showing a pair of locking members 7 and 8;

FIG. 4 is a cross-sectional view for explaining a locking state of the locking members 7, 8 and locking members 9, 10.

FIG. 5 is an exploded perspective view showing a configuration of a display device 21 held by the holder 1.

FIG. 6 is a perspective view showing the surface of the display device 21.

FIG. 7 is a perspective view showing a back surface of the display device 21.

FIG. 8 is an enlarged side view showing a rigid circuit board 29 portion of the display device 21.

FIG. 9 is a perspective view showing a state in which the display device 21 is arranged with the holding members 2 and 3 of the holder 1 opened.

FIG. 10 is an enlarged cross-sectional view showing a state where the protrusion 14 is inserted into the insertion hole 27.

FIG. 11 is a perspective view showing the back surface of the holder 1 in a state where the display device 21 is arranged and the holding members 2 and 3 of the holder 1 are closed.

FIG. 12 is a cross-sectional view showing the holder 1 when inspecting the display state of the held display device 21.

FIG. 13 is a perspective view showing a connection method of the signal cable 36.

FIG. 14 is an enlarged cross-sectional view showing the vicinity where the signal cable 36 is connected to the connector section 30.

15 is a perspective view showing an example in which a direct-view type backlight module 41 is mounted on the holder 1. FIG.

FIG. 16 is a perspective view showing a conventional holder 61.

FIG. 17 is a perspective view showing a back surface of the display device 71 held by the holder 61.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holder 2, 3 Holding member 5, 6 Opening 7, 8, 9, 10 Locking member 11, 12 Fitting member 13, 14 Convex part 16, 20 Guide member 17 Insertion opening 17a, 17b, 31 Notch Reference Signs 18 Pressing indication mark 21 Display device 22 Display panel 23, 24 Flexible wiring board 25 IC chip 26 Frame 29 Rigid circuit board 30 Connector part 32, 41 Back light module 33, 42 Light source 34, 43 Reflector 35 Light guide plate 36 Signal cable

Claims (2)

[Claims] 1. A display panel having a predetermined display area, a drive circuit board on which a drive circuit for applying a display signal to the display panel is mounted, and the drive circuit board disposed on a side opposite to a display surface of the display panel. A flexible substrate that electrically connects the drive circuit board and the display panel to the display panel, and handling the flat display device in a manufacturing process by sandwiching the holder with the holder. The display device has a pair of holding members arranged on the opposite side to the display surface side to sandwich the flat panel display device. Of the pair of holding members, the holding member located on the display surface side of the display panel is the display member. A region corresponding to the region is a light-transmitting region, and one of the pair of holding members is a pair of locking portions that are locked to each other when the pair of holding members are arranged to face each other. One of the members has a locking member,
The other holding member has the other locking member, and when the pair of locking members is locked, the pair of holding members form an insertion port for inserting a light source on the side opposite to the display surface of the display panel. A method for manufacturing a flat display device, comprising: inserting a light source through the insertion opening; and inspecting a display state while the light source is held by the holder. 2. A surface resistance of at least a holding surface of the pair of holding members for holding at least the flat panel display device is 10 ⁶ Ω or more.
Claim, characterized in chosen that the scope of the following 0 ⁹ Omega 1
The manufacturing method of the flat panel display according to the above.