FR2778009A1 - DISPLAY DEVICE WITH FLAT PANELS, PARTICULARLY LIQUID CRYSTALS, AND MANUFACTURING METHOD THEREOF - Google Patents

Abstract

I, e display device comprises a first frame and a second frame enclosing between them a display with flat panels. The device comprises a support (32) between respectively the first and the second side panel of the first frame (30) and of the second frame (22) enclosing the display (24) and the second frame is fixed to the side wall of the outer case by a fixing member coupled to the support (32) capable of being engaged in a groove (30A). production of liquid crystal display devices of reduced thickness.

Description

DISPLAY DEVICE WITH FLAT PANELS

IN PARTICULAR WITH LIQUID CRYSTALS,

AND MANUFACTURING METHOD THEREOF

  The present invention relates to a display device, in particular a liquid crystal display (LCD) comprising a liquid crystal display module and more particularly a liquid crystal display device which is suitable for side mounting when the device liquid crystal display is arranged on a

laptop or similar.

  Generally, a conventional liquid crystal display device comprises a liquid crystal module (LCD), a control circuit for driving the liquid crystal LCD, and a housing. The LCD module comprises a liquid crystal panel comprising liquid crystal cells arranged in a matrix network between two glass substrates and a rear lighting unit for irradiating or radiating light on the liquid crystal panel. The liquid crystal module is fitted with optical sheets to direct a light upwards

  which is directed from the rear lighting unit to the liquid crystal panel.

  Such a system of liquid crystal panel, rear lighting units and optical sheets, can be assembled into a one-piece structure and be protected against any external impact so as to prevent loss of light. In this regard and in this case, there is provided a housing or frame for a liquid crystal display. The housing is formed so as to surround the rear lighting unit and the optical sheets which comprise the edge of the liquid crystal panel. Such a liquid crystal display device is mounted in a portable information processing apparatus, such as a portable computer (for example a notebook computer, that is to say of very small format), for be used as a display device. In order to obtain a portable information processing device having a thin structure, a lateral receiving system has been used, for example in which a liquid crystal display device comprises receiving means, such as threaded holes on the edge lateral perpendicular to the display surface. The liquid crystal display device is attached to the side surface of the information processor

  portable, preferably on one of the side surfaces.

  As shown in FIG. 1, the side-mounting liquid crystal display box comprises, for example, a frame 14 made of plastic, and an upper box or frame 2 which is made of metallic material, to engage on the frame 14. The frame 14 supports a reflective or reflective sheet 12, a light and a guide at the rear 10, optical sheets 8, a liquid crystal panel 6 and a polarization sheet 4. Fastening elements such that R \ D141JI -1 (, 47 -, [1 <1 <'April 22, 1999 - 1/21 of the inserts 16 having a female thread or thread are inserted on each side surface of the frame 14 using an appropriate method such than a high frequency welding technique. The upper housing 2 is installed so as to surround the lateral surfaces of the optical sheets 8, the lighting and the rear guide 10 and the frame 14 comprising the edge and the lateral surfaces of the panel. 6 liquid crystal displays.

  2A engagement holes are formed on each side wall of the upper housing 2.

  so as to correspond to the inserts 16 of the frame 14. In addition, as shown in FIG. 2A, the upper box 2 covers the frame 14, the upper part of which constitutes the reflective sheet or reflector 12, and serves to fix the guide and the lighting

  at the rear 10, the optical sheets 8 and the liquid crystal panel which are available

  one after the other. In this case, the upper case 2 surrounds the nailed edge

  liquid crystal panel 6 to protect it from external shocks.

  The upper polarization plate 4 is positioned on the surface of the panel il

  liquid crystals and in the center of this surface.

  As shown in Figure 2A, the liquid crystal display device

  having the structure mentioned above is mounted on the cover 1 of a computer

  Notepad holder or the like by means of a screw 18, for example, which passes through the through hole 2A of the upper case 2 from the side surface of the cover 1

  surrounding the display device and which is screwed into the insert 16.

  In the side-mounting liquid crystal display device using the insert 16, the frame 14 may have a large width because the insert 16 has a non-negligible length. For example, the insert 16 may have a length of at least 2.5 mm so as to be fixed to the lateral surface of the frame 14, as shown in FIG. 2A using the technique of high frequency welding. The frame 14 surrounding the insert 16 may also have a thickness of at least 1.1 mm. As a result, the side edge of a housing for the side mount liquid crystal display device has a width greater than 3.2 mm. The result is that the liquid crystal display device according to the side-mounting system has a large width. Also in the side mount LCD display box using the insert 16, the side wall of the frame 14 may be damaged during an additional insertion process. If the frame 14 has a broken or cracked side wall, it is difficult to repair it and must be

  scrap. This results in higher manufacturing costs for the

  liquid crystal display device, including for the liquid crystal module.

  An object of the present invention is in particular to provide a liquid crystal display box and side mounting which is easy to produce, which has a reduced thickness and which reduces the manufacturing costs of the display to

liquid crystals.

  R: \ 16400 \ 16476 DOC - April 22, 1999 - 2/21 Another object of the present invention consists in proposing a liquid crystal display box which makes it possible to produce a display device for

thinner liquid crystal.

  To this end, according to the invention, a display device with flat panels comprises; - an outer casing having a side wall; - a first frame which supports the display with flat panels, the first frame having a first side panel; a second frame having a configuration suitable for pressing the first frame with the display with flat panels disposed between them, the second frame

  having a second side panel, the second side panel defined-

  sant an opening; and - a support between, respectively, the first and second side panels of the first and second frames, the support comprising a projecting part 1 5 having a configuration suitable for being engaged in the opening of the

  second side panel of the second frame, the frame being fixed to the side wall

  rale of the outer casing with a fixing member coupled to the support through

the outer case.

  In one embodiment, the second side panel of the second frame has at least one projecting portion projecting adjacent to the opening of the second side panel, and the support defines at least one housing having a size suitable for receiving the portion projecting, the housing and the projecting part being arranged in the support to come into contact respectively with the

  protruding part and opening of the second frame.

  Advantageously, the second side panel of the second frame has two projecting parts projecting on opposite sides of the opening and the support defines two housings having dimensions suitable for receiving corresponding projections. It is also possible to provide that the second side panel of the second frame comprises at least one housing formed adjacent to the opening in the second side panel, and in that the support defines at least one projection having a dimension suitable for fitting in the housing, the projection and the projecting part being arranged in the support to engage respectively in the housing and

the opening of the second frame.

  Preferably, the second side panel of the second frame comprises two housings formed on opposite sides of the opening and the support defines two projecting parts having dimensions suitable for fitting into the corresponding housings. I471 <[(<X - 22 aril 1999. 3121 We can also provide that the frame has a groove defined to receive the support, the groove being formed opposite the opening of the side wall

of the second frame.

  Advantageously, the second side panel of the second frame has at least one projection projecting adjacent to the opening in the second side panel, and the support defines at least one housing having dimensions suitable for receiving the projection, the housing and the projecting part being arranged in the support to come into contact respectively with the projection and the

housing, from the second frame.

  In another embodiment, the first side panel of the first frame has a cavity having a configuration suitable for sliding reception of the support, the cavity of the first side panel defining an opening, and in this

  that, the projecting part of the support is aligned with the opening of the cavity.

  Preferably, the projecting part of the support has an interior surface

  tapped to receive the fixing member.

  It is also possible to provide that at least one hook protrudes into the cavity from the first side panel of the first frame to block the support in the cavity. Preferably, the second frame projects a lever into the opening of the second side panel, the lever pressing the projecting part of the support.

  to hold the support in the cavity.

  The invention further provides a portable display device comprising a flat panel display which displays images; - a control unit connected to the flat panel display to control the images; an outer housing which surrounds at least a portion of the flat panel display, the outer housing having at least one side wall; a frame which supports the display with flat panels, the frame having at least one side panel; - An upper housing having a configuration suitable for pressing the frame with the display with flat panels disposed between them, the upper housing having at least one side panel and the side panel defining an opening; and - a support disposed between the side panels of the frame and the upper case, the support comprising a projecting part having a configuration suitable for being mounted in the opening of the side panel of the upper case, the frame being fixed to the side wall of the outer casing by a fixing member

  coupled support via the external box.

  R: \ 16400 \ 16476 DOC - 22 April 1999.4 / 21 Preferably, the side panel of the upper housing has at least one projection projecting adjacent to the opening of the side panel, and the support defines at least one housing having a dimension capable of receiving the projection, the housing and the projecting part being arranged in the support to come into contact respectively with the projection and the opening of the upper housing. In one embodiment, the side panel of the upper housing has two projections protruding on opposite sides of the opening and in that the support defines two housings having dimensions suitable for receiving corresponding projections. It is also possible to provide that the side panel of the upper housing comprises at least one housing formed adjacent to the opening in the side panel, and in that the support defines at least one projection having a dimension suitable for fitting in the housing, the projection and the projecting part being arranged in the support for

  come into contact with the housing and the opening, respectively, of the upper housing.

  In yet another embodiment, the side panel of the upper housing has two housings formed on opposite sides of the opening and the support defines two protruding parts having dimensions suitable for adjusting

in the corresponding accommodation.

  Preferably, the frame has a groove or housing defined to receive the support, the groove being formed opposite the opening of the side wall.

of the upper case.

  Advantageously, the side panel of the upper housing has at least one projecting part projecting adjacent to the opening in the side panel and the support defines at least one housing having dimensions suitable for receiving the projection, the housing and the part projecting being arranged in the support to come into contact respectively with the projection and the opening of the

upper case.

  In one embodiment, the side panel of the frame comprises a cavity or housing having a configuration suitable for slidingly receiving the support, the cavity of the side panel defining an opening, and the projecting part.

  of the support is aligned with the opening of the cavity.

  Advantageously, the projecting part of the support has an internal surface.

  tapped thread having a configuration suitable for receiving the fixing member.

  In another embodiment, at least one hook projects into the cavity from the side panel of the frame so as to lock the support in the cavity. R% I li-, l.h47, 1)) (-22 April 1999-S / 21 Preferably, a lever protrudes from the upper housing in the opening of the side panel, the lever pressing the projecting part of the support to maintain

the latter in the cavity.

  The invention also relates to a display device with flat panels.

  comprising: - an external casing having at least one side wall: - frame means for supporting a display with flat panels, the frame means having at least one side panel; - upper housing means for pressing the frame means with the flat panel display disposed between them, the upper housing means having at least one side panel and the side panel defining an opening; and - support means for fixing the upper case means and the frame means to the external case, the support means being arranged between the side panels of the frame means and the upper case means, the support means comprising a part projecting having a configuration suitable for being mounted in the opening of the side panel of the upper case, in which the frame means are fixed to the side wall of the outer case by fixing means coupled to the support means by means of the box

outside.

  Finally, the invention relates to a method of manufacturing a display device with flat panels having a display with flat panels, comprising the steps consisting in: - forming an outer casing having a side wall; - To form a first frame which supports the display with flat panels. the first frame having a first side panel; - To form a second frame having a configuration suitable for pressing the first frame with the display with flat panels arranged between them, the second frame having a second side panel, the second side panel defining an opening; and - forming a support between the first and second side panels of the first and second frames respectively, the support comprising a projecting part having a configuration suitable for being mounted in the opening of the second side panel of the second frame, process in which the frame is fixed to the side wall of the outer case with a fixing member coupled to the support by

  through the outer case.

  In an embodiment of the method, the second side panel of the second frame has at least one projection projecting adjacent to it R \ 16400 \ 16476.DOC -Apr 22, 1999.6 / 2 l the opening in the second side panel , and the support defines at least one housing having dimensions suitable for receiving the projection, the housing and the projecting part being arranged in the support to come into contact respectively

  with the projection and the opening, of the second frame.

  In another embodiment, the second side panel of the second frame has two projections projecting on opposite faces of the opening, and in that the support defines two housings having dimensions

  suitable for receiving corresponding projections.

  Advantageously, the first side panel of the first frame comprising a cavity having a configuration suitable for slidingly receiving the support, the cavity of the first side panel defining an opening, the projecting part of the

  support is aligned with the opening of the cavity.

  Preferably, the projecting part of the support has a tapped interior surface having a configuration in which is capable of being screwed

the fixing member.

  According to a last embodiment of the present invention, a portable display device comprises: - a display with flat panels which displays images; - a control unit connected to the flat panel display to control the images; - an outer casing which surrounds at least part of the flat panel display, the outer casing having at least one side wall; - a frame which supports the display with flat panels, the frame having at least one side panel; - An upper box which has a configuration suitable for pressing the frame with the display with flat panels arranged between them, the upper box having at least one side panel and the side panel defining an opening; and - a support disposed between the side panels of the frame and the upper case, the support comprising a projecting part which has a configuration suitable for being mounted in the opening of the side panel of the upper case, the frame being fixed to the side wall of the outer casing by a

  fixing coupled to the support by the external box.

  Other purposes, advantages and characteristics will appear on reading the

  description of various embodiments of the invention, given without limitation and

  opposite the attached drawing in which:

  - Figure I is an exploded perspective view showing a display device

  liquid crystal display according to the state of the art R 11,481x) 1471, L) ('- 22 April 1999. 7/21 Figure 2A is a fragmentary sectional view of the liquid crystal display device according to line II 'in Figure 1; Figure 2B is a sectional view of the insert shown in Figure 2A;

  FIG. 3 is an exploded perspective view showing an attachment device

  liquid crystal display according to a first embodiment of the invention:

  Figure 4 is a fragmentary cross-sectional view of the alloying device

  liquid crystal chage along line II-II 'in Figure 3 Figure 5A is a detailed fragmentary illustration of an embodiment of an engagement hole for the device shown in 25 shown in the figure

3;

  - Figure 5B is a detailed illustration of an embodiment of a support for the device shown in Figure 3; - Figure 5C is an alternative embodiment of Figure 5A - Figure 5D is an alternative embodiment of the support shown in Figure 5B; - Figure 6 is an exploded perspective view showing the structure of a liquid crystal display device according to a second embodiment of the present invention; - Figure 7 is a detailed illustration of the support shown in Figure 6 - Figure 8A is a detailed illustration of the receiving member shown in 1i Figure 6; - Figure 8B is a detailed plan view of the receiving member shown in Figure 6; - Figure 9 is a detailed illustration of part A of the upper housing shown in Figure 6; and - Figure 10 is a fragmentary sectional view of the liquid crystal display device I along line III-III 'in Figure 6 o the liquid crystal display device is mounted on a housing such as the cover a computer

  notepad, that is to say very small.

  A flat panel display device has an outer panel having at least one side wall, a frame which supports a liquid crystal display panel and has at least one side panel, an upper housing having a proper configuration for contacting with the frame, the panel a1

  liquid crystals being placed between them and a support disposed between the late-

  of the frame and the upper case. The upper housing has at least neither side panel and the side panel defines an opening. The support comprises a projecting part having a configuration suitable for being mounted in the opening of the side panel of the upper housing. The frame is attached to the side panel of the L R: \ I6400 \ 16476 DOC. 22 apr1 1999 - 8/21 outer casing by a fixing member coupled to the support via the

outer casing.

  According to another aspect of the present invention, the side panel of the upper housing has at least one projecting portion projecting adjacent the opening in the side panel. The support defines at least one housing having dimensions suitable for receiving the projecting part. In this regard, the housing and the projecting part are arranged in the support to receive respectively the part

  protruding and opening the upper case.

  According to another aspect of the present invention, the side panel of the upper housing has two projecting portions projecting on opposite sides of the opening. The support defines two housings having dimensions specific to

  receive corresponding projecting parts.

  According to another aspect of the present invention, the side panel of the upper housing has at least one housing formed adjacent to the opening of the side panel. The support defines at least one projection having dimensions suitable for mounting in the housing. The projection and the protruding part are arranged in the support to be mounted respectively in the housing and in the opening, of the

upper case.

  -! According to another aspect of the present invention, the projecting part of the support has a threaded inner surface having a configuration suitable for receiving the fixing member by screwing. In addition, the frame has a groove defined to receive the support, the groove being formed opposite the opening of the

  side wall of the upper case.

  According to another aspect of the present invention, the side panel of the frame comprises a cavity having a configuration suitable for slidingly receiving the support. The side panel cavity defines an opening in which the protruding part of the support is aligned with the opening of the cavity. Preferably, the part

  projecting from the support has a threaded inner surface having a configuration

  ration in which the fixing member is capable of being screwed. In addition, the upper housing has a lever which projects into the opening of the side panel, the lever pressing against the projecting part of the support to hold the support in the cavity. At least one hook protrudes into the cavity from

  from the side panel of the frame to firmly fix the support in the cavity.

  Referring to Figure 3, a liquid crystal display housing 100 according to a first embodiment of the present invention includes a frame 30 for supporting the liquid crystal display device, a housing or upper frame 22 for receiving the frame 30 and which preferably surrounds the liquid crystal display device, and a support 32 located between the frame 30 and the upper case 22 R (111, | l, .l (] I * () (- 22 BC, I "99 - 9/21 for mounting the liquid crystal display device on an external device such as a notebook computer. The liquid crystal display box 100, according to the

  present invention uses a lateral receiver system.

  We will describe in the following the structure for mounting the support 32 on the upper housing 22. In the upper housing 22, as shown L lai

  figure SA. a first engagement hole 22A is defined and protrusions 22B and 22C.

  intended to come to engage in a corresponding hole, are preferably formed on both sides of the first engagement hole 22A. The projections 22B and 22C are of

  preferably placed symmetrically with respect to the first engagement hole 22A.

  As shown in Figure 5B, a female thread or threaded hole 32A is also

  ment formed in the support 32 and preferably has a semi-projecting shape

  conical. On the two sides of the female thread or internal thread on the support 32, second and third holes 32B, 32C are defined in which the projections 22B and 22C are intended to engage respectively. The female thread or tap 32A on the support 32 is used to mount the liquid crystal display device on the external device such as a notebook computer. The projections 22B and 22C respectively engage in the second and third holes 32B and 32C, for example by a spot welding process or by other suitable processes known to those skilled in the art. The female thread or internal thread 32A is engaged in the first hole 22A on the upper housing before a screw is

  inserted in this internal thread 32A. In addition, the support 32 engaged on the upper housing

  Laughter 22 has a configuration suitable for being inserted in a defined groove 30A

  negates on frame 30 to allow upper case 22 and frame 30 to be

mounted on the outdoor unit.

  Referring to FIG. 4, the liquid crystal display case 100 according to the present invention is assembled by inserting the support 32, which is coupled to the upper case 32, in the groove 30A of the frame 30. In the assembled structure, there is sequentially, that is to say successively on the frame 30: a reflective sheet or reflector 28A, a rear lighting plate 28, a lighting lamp

  rear (not shown), and sheets 26 of diffusion and prism. On the leaves.

  are sequentially arranged a lower polarization sheet 23, the panel

  24 with liquid crystal and a top polarization sheet 21. The upper case

  laughter 22 surrounds the edges of the liquid crystal panel, so as to protect cc

external shock panel.

  The support 32 engaged or mounted on the upper housing 22, is formed to have a predetermined length and thickness. In the support 32, a female thread or tapping 32A is provided which has a projecting shape, as shown in FIG. 5B, and which is applied against the upper housing 22 by R: \ 16400 \ 16476 DOC -22 April 1999 10/21 He through a screw. The support 32 is preferably made of a metallic material to prevent the occurrence of cracks and damage as a result of impact and external vibrations, or the like. As a variant, the support 32 can be made of any suitable rigid material known to those skilled in the art. The size of the support 32 is made minimal in order to ensure a thickness and a

  minimum size. The liquid crystal display device according to the present invention

  tion therefore has a reduced length and thickness. For example, if a support 32 having a thickness of 1.4 mm according to the present invention is installed on both sides of the liquid crystal display device in place of the insert 16 shown in FIG. 2B, the size of the housing of the liquid crystal display device may be reduced, as regards its length along the X axis of the liquid crystal display device, by 2.4 mm. Also, the thickness of the liquid crystal display device is reduced by about 0.4 mm because the thickness

  (or the height) of the frame 30, including the width of the support 32, is approximately 6 mm.

  Alternative embodiments of the present invention are shown in Figures 5C and 5D. In FIG. 5C, instead of the projections in contact 22B and 22C, two adjusted housings 22D and 22E are provided. Similarly, in Figure 5D. instead of the engagement holes 32B and 32C, two engagement projections are provided

  32D and 32E which correspond to the two adjusted housings 22D and 22E.

  As shown in Figure 4, the assembled liquid crystal display housing 100 is coupled to cover I using screws. When the screws are tightened, the upper housing 22 is pressed firmly between the cover 1 and the support 32. The

  the liquid crystal display unit 100 described above has thus been reduced in thickness.

  by inserting the support 32 and engaging it, this support being rigidly fixed to the upper housing 22 in the groove 30A of the frame 30. A damaged support 32 can be replaced during the manufacturing process without having to discard all of it. of the frame. As a result, the manufacturing cost of the device can be reduced

liquid crystal display.

  Referring to Figure 6, a liquid crystal display device 200 is shown according to a second embodiment of the present invention. The liquid crystal display device 200 has supports 134 for fixing the liquid crystal display device 200 to an external housing. A frame 132 supports a reflective or reflective sheet 130, a rear light and a guide 128, optical sheets 126, a liquid crystal panel 124 and an upper polarization plate 122. The upper housing 120 is installed in such a way that it surrounds the edges and the lateral surfaces of the liquid crystal panel 124 and the lateral surfaces of the optical sheets 126, as well as the rear lighting and the guide 128, the reflective or reflective sheet 130 and the frame 132. The supports 134 R 1f < 4.l 'h, 47, 1 [X))'. 22 Aprll 1999 - I i / 21 are mounted on the side walls of the frame 132 and are fixed by means of a screw (not shown), which is for example inserted into the side wall of the frame 132 via the wall side of a cover (not shown) of external equipment (for example a notebook computer). A hinge arm can be inserted between the cover of the external equipment and the liquid crystal display device 200 in order to allow this device 200 to pivot relative to the base.

  outdoor equipment. A support and receiver member comprising a tarati-

  dage or female thread is inserted between the liquid crystal display device 200

  and the articulation arm to fill the space between the individual computer

  notes and the liquid crystal display device 200 or else to correct a

misalignment of the thread.

  As shown in FIG. 7, each support 134 comprises a Cil stator in the form of "+" 134A, blades 134B extending outwards from each side of the stator 134A, and a female thread or thread 134C formed in a protrudes and defines in the center of stator 134A. The blades 134B are formed so that they are all set back by their thickness, relative to the stator 134A. Guide grooves 134D are preferably defined on the underside of the blades 134B. The threads defined on the inner face of the internal thread I 34 (C 'preferably extend towards the rear face of the stator 134A to allow the screw

to cross stator 134A.

  To mount such a support 134 in the frame 132. of the receiving members 13,.

  that is to say intended to receive an insert, as shown in FIGS. 8A and 813.

  are defined on the side walls of the frame 132. Each receiving member 138 for housing or groove has first and second side support walls 138A and 138B positioned in a certain space projecting from the side wall of the frame 132A. The first and second support side walls 138A and 138B are positioned parallel to the frame side wall 132A to form first and second engagement intervals 138C and 138D. Part of the stator 134A and the blades 138B of the support 138 are inserted respectively into the first and second engagement intervals 138C and 138D. The left edge of the first support side wall 138A is preferably connected to the frame side wall 132A via a first connecting bar 138E, and the right edge of the second support side wall 138B is preferably connected to the side wall of frame 132A via a second connecting bar 138F. The lower edges of the first and second side support walls 138A and 1381; are connected to the side wall of frame 132A via third and fourth connecting bars 138G and 138HI. The center of each link bar R \ 16400 \ 16476 DOC - April 22, 1999 - 12/21 138G and 138H is fitted with 138I hanging jaws. The 138I hanging jaws are

  engaged in the guide grooves 134D of the support 134.

  The receiving member 138 further comprises a stepped face 138J projecting away from the side wall of the frame 132A. In this embodiment, the left edge of the projecting face 138J is opposite the right edge of the first support side wall 138A, while the right edge of the projecting face 138J is opposite the left edge of the second lateral support wall 138B. A female thread or 138K thread is preferably located in the center of the projecting face 138J. A screw 142 which passes through the upper housing 120 and the support 134, is screwed into the internal thread 138K. Hooks 138L are formed on the left and right faces of the support end of the projecting face 138J. The hooks 138L fix the edges of the stators 134A on the projecting face 138J. The lower ends of the side surfaces of the first and second opposite support side walls 138A and 138B are connected to each other by means of a fifth connecting bar 138M; and through the fifth link bar, the third link bar 138G is connected to the fourth link bar 138H. As shown in Figure 9, the side wall of the upper housing 120 is

  provided with an engagement groove 120A which is adapted and produced so as to receive

  see the first and second side support walls 138A and 138B. The first and second side support walls 138A and 138B engaged in the engagement groove 120A protrude through the opening of the engagement groove 120A. The side wall of the upper housing 120 is also provided with a tab forming a contact lever 120B extending downward from the center of the upper end of the contact groove 120A. A semi-circular through passage 120C is defined on the underside of the contact tab 120B. The threaded projection 134C of the support 134 is inserted into the through hole 120C. Of

  contact tabs 120B are pressed against the support 134.

  Figure 10 is a fragmentary sectional view of the display device to

  liquid crystal taken along line 111-11 'of Figure 6 when the display device

  The liquid crystal display is mounted on external equipment such as a notebook computer. On the upper part of the frame 132, are arranged sequentially, that is to say successively, the reflective sheet or reflector 130, the rear lighting and the guide 128, the optical sheets 126, the liquid crystal panel 124 and the upper polarization plate 122. The edges of the upper surface of the liquid crystal panel 124 and the frame 132 as well as the lateral surface of the frame 132 are surrounded by the upper housing 120. The support 134 is positioned between the wall

  side of the upper housing 120 and the side surface of the frame 132. The projecting projection

  11E.47, IX) (.- 22 Apr 1999. 13121 dée 134C of the support 134 is inserted and fixed in the engagement interval 138C which is defined on the side wall 132A of the frame 132. The screw 142 passes through and s' presses on a cover 140 and passes through a hinge arm 144 of the external equipment (for example a notebook computer); it then passes through the upper housing 120 vi; the passage 120C and is screwed through the support 134 ( thread 134C) in Iza side wall 132A of the frame 132, so as to fix the display device (at

  liquid crystal on the side surface of the cover 140 of the notebook computer.

  Alternatively, the articulated arm 144 may not be used, in which case the screw 142 comes into contact with the cover 140 via the support 134. The device

  liquid crystal display panel is thus rigidly fixed to the cover 140.

  The support 134 is preferably made of a metallic material or any other suitable material, so as to prevent its damage under the effect of shocks and external vibrations, etc. and / or the appearance of a crack during the screwing of the screw 142. The support 134 made of a metallic material has a LC

  reduced thickness compared to the conventional insert. It follows that the arrangement

  liquid crystal display and the liquid crystal display housing have a narrower width. For example, when support 134 is formed

  with a thickness of about 1.3 mm and is installed on the side wall of the frame 132.

  the width of the frame is reduced by about 2.3 mm compared to the case where an insert having a length of 2.5 mm is used. In addition, as the thickness of the side wall of the frame 132 is reduced, it is also possible to reduce the width of this frame 132. The support intended to be mounted on the external equipment of the liquid crystal display device according to the present The invention is applicable to a large gamnic of display products comprising a reflective liquid crystal display device and a projection liquid crystal display device. Iic with no rear lighting unit. Other flat billboards, such as

  PDP panels can be used in the present invention.

  As described above, according to the present invention, a receiving hole is formed in a state where a support is engaged in the side wall of the frame. dlC

  so as to rigidly fix the liquid crystal display device on the equipment

  externally using the side mount system. The width of the liquid crystal display module can also be reduced because the support has a reduced thickness. In addition, the liquid crystal display device as well as the notebook computer which would use such a display device may have

reduced thickness.

  Of course, the present invention is not limited to the embodiments described and represented, but it embraces the various easily accessible variants.

to the skilled person.

  R \ 16400 \ 16476 DOC 22 April 1999. 14/21

Claims (28)

  1.- Display device with flat panels having a display with flat panels, comprising: - an external housing (1) having a side wall; - a first frame (30) which supports the flat panel display (24), the first frame having a first side panel; - a second frame (22) having a configuration suitable for pressing the first frame (30) with the flat panel display (24) disposed between them, the second frame having a second side panel, the second side panel defining an opening; and   - a support (32) between, respectively the first and second side panels -   of the first and second frames, the support having a projecting part (22B, 22C) having a configuration suitable for being mounted in the opening of the second side panel of the second frame, the frame being fixed to the side wall of the outer casing with a fixing member (142) coupled to the support (32) by the outer casing.   2.- flat panel display device according to claim 1, characterized in that the second side panel of the second frame (22) has at least one projecting part (22B, 22C) projecting adjacent to the opening (22A)   of the second side panel, and in that the support (32) defines at least one housing   ment (32B, 32C) having a size suitable for receiving the projecting part (22D, 22C), the housing and the projecting part being arranged in the support (32) to come into   contact respectively with the projecting part and the opening of the second frame (22).   3.- flat panel display device according to claim 2, characterized in that the second side panel of the second frame (22) has two projecting parts (22B, 22C) projecting on opposite sides of the opening ( 22A) and in that the support (32) defines two housings (32B, 32C) having dimensions   suitable for receiving corresponding projections.   4.- Display device with flat panels according to any one of the claims.   cations I to 3, characterized in that the second side panel of the second frame (22) has at least one housing (22D, 22E) formed adjacent to the opening (22A) in the second side panel, and in that the support (32) defines at least one projection (32A) having a dimension suitable for fitting into the housing, the projection R '14411 -t 11471, 1) (' 22 aril 1999- 15/21 and the projecting part (32D , 32E) being arranged in the support (32) to engage   respectively in the housing and the opening (22A) of the second frame (22).   5.- Display device with flat panels according to any one of the claims.   cations I to 4, characterized in that the second side panel of the second frame (22) has two housings (22D, 22E) formed on opposite sides with the opening (22A) and in that the support (32) defines two protruding parts (321), 32E) having dimensions suitable for fitting in the housings correspondents (22D, 22E).   6.- Display device with flat panels according to any one of the claims   cations I to 5, characterized in that the frame (30) has a groove (30A) defined to receive the support (32), the groove being formed opposite the opening of the   side wall of the second frame (22).   7.- Display device with flat panels according to any one of the claims.   cations I to 6, characterized in that the second side panel of the second frame (22) has at least one projection projecting adjacent to the opening in the second side panel, and in that the support (32) defines at less a housing (22A) having dimensions suitable for receiving the projection, the housing and the projecting part being arranged in the support (32) to come into contact   respectively with the projection and the housing, of the second frame (22).   8.- Display device with flat panels according to any one of the claims.   cations 1 to 7, the first side panel of the first frame having a cavity (30A) having a configuration suitable for slidingly receiving the support (32), the cavity of the first side panel defining an opening, and in that, the   projecting part of the support (32) is aligned with the opening of the cavity.   9.- Display device with flat panels according to any one of the claims   cations 1 to 8, characterized in that the protruding part cn of the support (32) comprises a   internal threaded surface (32A) suitable for receiving the fixing member (142).   10.- Display device with flat panels according to any one of the revcl-   dications I to 9, characterized in that at least one hook (138L) projects into the cavity from the first side panel of the first frame to block the support (134) in the cavity.   R: \ 16400 \ 16476 DOC-.22 Apr 1999- 16/21   11 - Display device with flat panels according to any one of the res-   dications 1 to 10, characterized in that the second frame projects a lever (120B) projecting into the opening (120A) of the second side panel, the lever pressing   the projecting part of the support (134) to hold the support in the cavity.   12.- Portable display device comprising: - a flat panel display (124) which displays images; - a control unit connected to the flat panel display to control the images; - an outer casing which surrounds at least part of the flat panel display, the outer casing having at least one side wall; - a frame (132) which supports the display (124) with flat panels, the frame having at least one side panel; - an upper box (120) having a configuration suitable for pressing the frame (132) with the flat panel display (124) disposed between them, the box   upper with at least one side panel and the side panel defined-   sant an opening; and - a support (134) disposed between the side panels of the frame and the upper case, the support (134) comprising a projecting part having a configuration suitable for being mounted in the opening of the side panel of the upper case, the frame ( 132) being fixed to the side wall of the outer housing by a fixing member (142) coupled to the support (134) by   through the outer case.   13.- Display device according to claim 12, characterized in that the side panel of the upper housing (120) comprises at least one projection projecting adjacent the opening of the side panel, and in that the support ( 134) defines at least one housing having a dimension capable of receiving the projection, the housing and the projecting part being arranged in the support (134) for   come into contact respectively with the projection and the opening of the upper housing.   14.- Display device according to claim 12 or 13, characterized in that the side panel of the upper housing (120) has two projections protruding on the opposite sides of the opening and in that the support (134) defines of them   housings with dimensions suitable for receiving corresponding projections.   15.- Display device according to any one of claims 12 to 14,   characterized in that the side panel of the upper housing comprises at least one RI, 1 I 1, 17. 1) (- 22 avil 1 J99 - 17/21 housing formed adjacent to the opening in the side panel, and in that the support (134) defines at least one projection having a dimension suitable for fitting into the housing, the projection and the projecting part being arranged in the support (134) to come into contact respectively with the housing and the opening, of the upper case (120).   16.- Display device according to any one of claims 12 to 15.   characterized in that the side panel of the upper housing (120) has two housings formed on the opposite sides of the opening and in that the support (134) defines two projecting parts having dimensions suitable for fitting in the corresponding accommodation.   17.- Display device according to any one of claims 12 to 16.   characterized in that the frame (132) has a groove or housing (138) defined to receive the support (134), the groove being formed opposite the opening of lu   side wall of the upper housing (120).   18.- Display device according to any one of claims 12 there 17.   characterized in that the side panel of the upper housing (120) has at least one projecting portion projecting adjacent the opening in the side panel and in that the support (134) defines at least one housing having dimensions suitable for receiving the projection, the housing and the projection being arranged in the support (134) to come into contact respectively with lu   projection and opening of the upper housing (120).   19.- Display device according to any one of claims 12 to I S.   the side panel of the frame (132) comprising a cavity or housing (138) present   both a configuration capable of slidingly receiving the support (134). the cavity of the side panel defining an opening, and in that the projecting part   of the support (134) is aligned with the opening of the cavity.   20.- Display device according to any one of claims 12 to 1i.   characterized in that the projecting part of the support (134) has an internal surface -   tapped thread (134C) having a configuration suitable for receiving the fixing (142).   R.:\16400\16476.DOC - April 22, 1999 -18/21   21. A display device according to any one of claims 12 to 20,   characterized in that at least one hook (138L) projects into the cavity from the   side panel of the frame so as to lock the support (134) in the cavity.   22.- Display device according to any one of claims 12 to 21,   characterized in that a lever (120B) projects from the upper housing (120) into the opening (120A) in the side panel, the lever pressing against the projecting part of the   support (134) to hold the latter in the cavity.   23.- Display device with flat panels, comprising: - an external housing (14) having at least one side wall - frame means (132) for supporting a display with flat panels (124), the frame means having at least one side panel; - upper housing means (120) for pressing the frame means (132) with the flat panel display disposed between them, the upper housing means having at least one side panel and the side panel defining an opening; and - support means (134) for fixing the upper case means (120) and the frame means (132) to the external case, the support means being arranged between the side panels of the frame means and the case means upper, the support means (134) comprising a projecting part having a configuration suitable for being mounted in the opening of the side panel of the upper housing, in which the frame means (132) are fixed to the side wall of the outer housing (144) by fixing means (142)   coupled to the support means (134) through the outer housing.   24.- A method of manufacturing a flat panel display device having a flat panel display, comprising the steps of - forming an outer housing having a side wall - forming a first frame which supports the panel display flat, the first frame having a first side panel; - To form a second frame having a configuration suitable for pressing the first frame with the display with flat panels arranged between them, the second frame having a second side panel, the second side panel i5> defining an opening; and - to form a support between the first and second side panels of the first and second frames respectively, the support comprising a projecting part having a configuration suitable for being mounted in the opening of the R Il9'I Ih1,7. 1X) (- April 2, 1999- 19/21 second side panel of the second frame, process in which the frame is fixed to the side wall of the outer casing with a fixing member coupled to the   support through the external housing.   25.- Method according to claim 24, characterized in that the second side panel of the second frame has at least one projection projecting adjacent to the opening in the second side panel, and in that the support defines at least one housing having dimensions suitable for receiving the projection, the housing and the projecting part being arranged in the support to come   respectively in contact with the projection and the opening of the second frame.   26.- Method according to claim 24 or 25, characterized in that the second side panel of the second frame has two projections projecting on opposite faces of the opening, and in that the support defines two housings having   dimensions suitable for receiving corresponding projections.   27.- Method according to any one of claims 24 to 26, the first   side panel of the first frame having a cavity having a configuration   suitable for slidingly receiving the support, the cavity of the first side panel-   spoke defining an opening, characterized in that the projecting part of the support is   aligned with the opening of the cavity.   28.- Method according to any one of claims 24 to 27, characterized ci   that the projecting part of the support has a tapped interior surface having a configuration in which the fixing member is capable of being screwed. R \ 16400 \ 16476.DOC. 22 arI 1999). 20/21