JP2002174807A - Attaching structure of liquid crystal display and tape printing device provided with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attaching structure of a liquid crystal display by which a liquid crystal panel element can be attached to a display case with high precision and the periphery of the liquid crystal panel element can be compactly constructed, and to provide a tape printing device provided with the structure. SOLUTION: In the attaching structure of the liquid crystal display 20 for attaching the liquid crystal display 20 consisting of the liquid crystal panel element 41 and a circuit board 42 to a case main body 34 of the display cases 34 and 35, a panel holder 51 holding the liquid crystal panel element 41 in the positioning state and a board holder 52 positioned on the inner side in the plane direction of the panel holder 51 and holding the circuit board 42 are projectingly formed, integrally with each other in the case main body 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a liquid crystal display to a display case and a tape printing apparatus provided with the same.

[0002]

FIG. 6 shows a mounting structure of a liquid crystal display in a conventional tape printer. In this mounting structure, a circuit board 103 is fixed to a support boss 102 formed on a display case (device case) 101.
A liquid crystal panel 104 is mounted and fixed on the circuit board 103. In this case, the liquid crystal panel element 104 includes a liquid crystal panel element 105 in which liquid crystal is sandwiched between two glass substrates 104a and 104b, and a fixed frame 106 that holds the liquid crystal panel element 105. It is configured by a four-peripheral frame that is held over four peripheries of the element 105.

[0003]

In such a conventional liquid crystal display mounting structure, a liquid crystal panel element is held by a fixed frame, and the fixed frame is fixed on a circuit board.
Further, since the circuit board is fixed to the display case, there is a problem that the positioning of the liquid crystal panel with respect to the display case is difficult to be performed with high accuracy in structure, and the liquid crystal panel is mounted and fixed on the circuit board. For this reason, it is necessary to make the circuit board one size larger than the liquid crystal panel regardless of the number and arrangement of the electronic components on the circuit board, resulting in waste of material and space.

According to the present invention, a liquid crystal panel element can be accurately attached to a display case,
It is an object of the present invention to provide a mounting structure for a liquid crystal display which can be configured compactly around a liquid crystal panel element, and a tape printing apparatus having the mounting structure.

[0005]

The mounting structure of the liquid crystal display according to the present invention comprises a liquid crystal display comprising a liquid crystal panel element and a circuit board incorporating a control circuit for the liquid crystal panel element. In a mounting structure for a liquid crystal display in a tape printer, which is incorporated in a display case comprising a cover case portion covering an open portion of the liquid crystal panel, a liquid crystal panel element is disposed on the cover case portion side and a circuit board is superposed on the case body side. In addition, a panel holder for holding the liquid crystal panel element in a positioned state is formed integrally with the case body so as to protrude therefrom.

According to this configuration, the liquid crystal panel element is held in a positioned state by the panel holder formed integrally with the case body. For this reason, the liquid crystal panel element can be directly held on the display case (case main body) in a state where the liquid crystal panel element is positioned and without the need for a pressing member or the like. Further, the liquid crystal panel element can be arranged sufficiently close to the cover case part without employing a structure for attaching the liquid crystal panel element to the cover case part.

In this case, the panel holder includes a panel support for adhesively supporting the liquid crystal panel element via an adhesive, and a panel positioning section for positioning the liquid crystal panel element by abutting the panel support on the outside in the in-plane direction. Preferably consisting of

According to this configuration, the liquid crystal panel element can be positioned by the panel positioning section, and in this state, the liquid crystal panel element can be adhesively held on the panel supporting section. Therefore, the liquid crystal panel element can be easily attached to the display case (case main body) with high positional accuracy.

In this case, it is preferable that the pressure-sensitive adhesive is constituted by a double-sided pressure-sensitive adhesive tape interposed between the panel supporting portion and the liquid crystal panel element.

According to this structure, the structure of the liquid crystal panel to be adhered to the panel support can be simplified. The double-sided pressure-sensitive adhesive tape may be pasted to either the panel support or the liquid crystal panel element.

In these cases, it is preferable that the panel supporting portion is constituted by three panel supporting boss portions which are dispersedly arranged corresponding to three positions on the edge of the liquid crystal panel element.

According to this configuration, the liquid crystal panel elements can be held in a well-balanced manner by the three panel supporting boss portions arranged in a dispersed manner.

In these cases, the panel positioning section is composed of four sets of positioning pieces provided corresponding to the four corners of the liquid crystal panel element, and each positioning piece is arranged in the longitudinal direction of the liquid crystal panel element. The long side positioning piece portion abutted, and the short side positioning piece portion abutted in the short side direction,
preferable.

According to this configuration, each positioning piece is composed of the long side positioning piece and the short side positioning piece, so that each positioning section is formed integrally with the block. It can be formed simply and with good positional accuracy.

In these cases, it is preferable that the board holder for holding the circuit board is formed integrally with the case body so as to protrude.

According to this configuration, the circuit board is held by the board holder formed integrally with the case body. For this reason, the circuit board can be held in the display case (case body) separately from the liquid crystal panel element, and can be disposed without being caught by the size and position of the liquid crystal panel element. It is preferable that at least a main part of the circuit board is disposed so as to overlap the liquid crystal panel element.

In this case, the substrate holder comprises a pair of substrate supporting bosses for supporting both ends of the liquid crystal panel element in the long side direction, and each substrate supporting boss is provided with a positioning pin portion corresponding to a positioning hole of the circuit board. And a screwing boss portion corresponding to the small hole for screwing the circuit board.

According to this configuration, the circuit board can be screwed to the display case (the case main body) in a positioned state via the board holder.

A tape printing apparatus according to the present invention is provided with a liquid crystal display mounting structure according to any one of the first to seventh aspects.

According to this structure, the liquid crystal display comprising the liquid crystal panel element and the circuit board can be accurately and compactly incorporated into the display case, so that the size and cost of the device can be reduced. it can.

In this case, the liquid crystal display is incorporated in an upper lid having an outer shell formed by a display case.
It is preferable that the upper lid be capable of opening and closing a keyboard provided on the upper surface of the apparatus main body with the liquid crystal display facing downward.

According to this configuration, the upper lid incorporating the liquid crystal display can be made lightweight and compact, and the load on the hinge structure of the upper lid can be reduced correspondingly.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tape printer and a hinge mechanism according to an embodiment of the present invention will be described with reference to the accompanying drawings. This tape printing apparatus prints desired characters, figures, and the like on a peeled print tape, and cuts a printed portion of the print tape into a predetermined length to create a label.

FIG. 1 is an external perspective view of a tape printer, and FIG. 2 is an external perspective view of the tape printer with an upper lid opened. As shown in these figures, the tape printer 1
Consists of an apparatus main body 2 having an outer shell formed of an apparatus case 3 and a tape cartridge 4 detachably mounted on the apparatus main body 2. A printing tape 5 to be printed is contained in the tape cartridge 4. I have. An opening / closing lid 6 with a window is disposed on the upper left rear surface of the apparatus main body 2, and the tape cartridge 4 is detachably mounted in a cartridge storage section 7 formed inside the opening / closing lid 6. Opening / closing lid 6
An operation button 8 for opening the opening / closing lid 6 is provided on the right side of.

A forming and cutting mechanism (not shown) for trimming a corner of the printing tape 5 is built in the upper right rear surface of the apparatus main body 2, and the printing tape (label) 5 is mounted on this portion of the apparatus case 3. And a slit-shaped tape insertion port 10 connected thereto. Further, a power supply connector 11 and a connection connector 12 for connecting to a personal computer or the like are provided at a rear portion on the right side of the apparatus main body 2.

Although not shown, a tape outlet for feeding out the printed printing tape 5 to the outside of the apparatus is formed in the rear portion of the left side of the apparatus main body 2. Between them, a cutter for fully cutting the printing tape 5 and a slide cutter for half-cutting by protruding a part of the device case 3 and the opening / closing lid 6 in a drip-proof manner are incorporated (both not shown). ). On the other hand, a power switch 13 and a connection switch 14 for connecting to a personal computer or the like are provided at a front left portion of the apparatus main body 2.

A crescent-shaped display section 15 is formed at the front of the apparatus main body 2 so as to protrude therefrom. Various display lamps 16 such as a power lamp are provided on the surface of the display section 15. Further, a keyboard 17 is provided behind the display unit 15, and a large upper lid 18 that covers the keyboard 17 is provided above the keyboard 17. The upper cover 18 is opened and closed upward centering on a hinge mechanism (not shown) built in the right half where the above-mentioned opening / closing cover 6 has escaped. Open diagonally upward. That is, when the upper cover 18 is opened to the rear oblique posture, the keyboard 1 is brought forward.
The liquid crystal display 20 is located at the front, and the input operation can be performed.

The apparatus main body 2 configured as described above is designed in a form in which a dome portion is mounted on a wedge-shaped base portion mainly on which the keyboard 17 is disposed and a main portion mainly on which the upper cover 18 is disposed. An elongated groove 21 is formed between the display unit 15 and the upper cover 18 in a closed state, and the groove 21 portion cooperates with a concave portion (not shown) on the back side to provide a hand grip. It is a part to which a finger is inserted when opening and closing the upper cover 18.

In the tape printer 1, first, the operation button 8 is pressed to open the opening / closing lid 6, and the tape cartridge 4 is mounted in the cartridge accommodating section 7. Although not particularly shown, the tape cartridge 4 includes a printing tape 5.
In addition, ink ribbon, platen, etc. are mounted,
When the tape cartridge 4 is mounted in the cartridge storage section 7, the feeding end of the printing tape 5 and the ink ribbon attached thereto are inserted between the printing head and the platen on the apparatus main body 2 side, and the rotation of the driving mechanism is performed. The shaft engages the platen and the reel on the winding side of the ink ribbon. Then, as the opening / closing lid 6 is closed, the print head presses the printing tape 5 and the ink ribbon against the platen, and enters a printing standby state.

Next, the power switch 13 is turned on, and at about the same time, the upper lid 18 is opened to prepare for input. Here, the user operates the keyboard 17 while referring to the liquid crystal display 20 to input and edit a desired character such as a character, and then instructs printing on the keyboard 17. When a print command is issued, the print tape 5 and the ink ribbon are sent at the same time, and the print head is appropriately driven to perform printing on the print tape 5 by thermal transfer.
The printed ink ribbon is wound up, but the printing tape 5
Is sent out of the apparatus case 3 from the tape discharge port (see FIG. 2). Then, during printing, the printing tape 5
The front portion of the printed portion is half-cut by the slide cutter, and when the printing is completed, the rear end (including the margin) of the printed portion of the print tape 5 is fully cut by the cutter.

On the other hand, when trimming the printed portion of the printing tape 5 thus formed, that is, the label (5), the tape inserting guide 9 guides the end of the label (5) to insert the tape. Insert into mouth 10. When the label (5) is inserted into the tape insertion slot 10, the built-in forming / cutting mechanism is activated, and the corner of the printing tape (label) 5 is formed and cut into a round shape.

As shown in FIG. 2, the upper lid 18 comprises an upper lid main body 31 in which the liquid crystal display 20 is incorporated, and a hinge portion 32 in which a hinge mechanism (not shown) is incorporated.
The hinge portion 32 is provided at a rear end of the upper lid main body 31 so as to extend substantially to the right half. The outer shell of the upper lid 18 includes a lid case (case main body) 34 that forms the front side of the upper lid 18 from the upper lid main body 31 to the hinge portion 32, and the upper lid main body 3.
A display unit case (cover case unit) 35 forming the back side (inside) of the upper lid 18 from 1 to the hinge unit 32
The lid case 34, which is a dome-shaped main body, has its rear upper surface formed flush with the upper surface of the opening / closing lid 6 and the periphery of the operation button 8 in the closed state.

The display case 35 is composed of a main case 36 that covers the liquid crystal display 20 and covers the hinge 32 from inside, and a transparent display cover 37 that covers the liquid crystal display 20. The lid case 34 having a shallow groove shape with a bottom is fitted from the inside (the front side in the drawing) to form a space for incorporating the liquid crystal display 20 therein. That is, the lid case 34 and the display case 35 are
The liquid crystal display 20 constitutes a display case, in which the liquid crystal display 20 is accommodated.
The display cover 37 covers the surface.

As shown in FIGS. 3, 4 and 5, the liquid crystal display 20 comprises a liquid crystal panel element 41 and a circuit board 42 in which a control circuit for the liquid crystal panel element 41 is incorporated.
The connection is made by a number of lead wires (heat seals) 43. In this embodiment, a substantially rectangular circuit board 42 having a protruding portion 42a is formed sufficiently small with respect to a square liquid crystal panel element 41, and the circuit board 42 has a lid. The liquid crystal panel element 41 is disposed on the case bottom 34a side of the case 34, and is disposed so as to cover the liquid crystal panel element 41 with a gap.

The liquid crystal panel element 41 encloses the liquid crystal 47 between the upper glass substrate 45 on which the polarizing plate is laminated on the front side and the lower glass substrate 46 on which the polarizing plate is laminated on the back side by a seal 48 which is continuous on four sides. It is configured. Thus, the liquid crystal panel element 41 is composed of the image portion 41a located inside the seal and the glass edge portion 41b outside the image portion 41a, and an input terminal is formed on a part of the glass edge portion 41b.

That is, the lower glass substrate 46 has one longer side and one shorter side shorter than the upper glass substrate 45, and the input terminal is formed on the extended edge 46 a of the lower glass substrate 46. . Then, the input terminal and the circuit board 4
2 are connected to the plurality of output terminals 43 via the large number of lead wires 43. Reference numeral 49 in the drawing denotes a connector provided on the projecting portion of the circuit board 42, and the circuit board 42 is connected to the CPU on the main body side via the connector 49. The description of the reflection structure and the backlight structure of the liquid crystal panel element 41 is omitted.

On the other hand, inside the lid case 34, a panel holder 5 for holding the liquid crystal panel element 41 in a positioned state is provided.
1 and a substrate holder 52 for holding the circuit board 42 in a positioned state are integrally formed (integrally molded with resin) on the case bottom 34a. The panel holder 51 includes a panel support portion 54 that adhesively supports the liquid crystal panel element 41 via an adhesive, a panel positioning portion 55 that is positioned outside the in-plane direction of the panel support portion 54 and positions the liquid crystal panel element 41, It is composed of

The panel supporting portion 54 is composed of three panel supporting boss portions 56, 56, 56 which are dispersedly arranged corresponding to three positions on the edge of the liquid crystal panel element 41. More specifically, each panel support boss portion 56 includes two support pieces 56a and 56a having an outwardly-facing “U” -shaped cross section and a liquid crystal panel element corresponding to the panel support boss portion 56. 41 and a double-sided pressure-sensitive adhesive tape 57 attached to the back surface (see FIG. 5). That is,
The liquid crystal panel element 41 is connected via a double-sided adhesive tape 57,
They are attached and fixed to three panel support boss portions 56, 56, 56 at intermediate positions in the left, right, and near sides as shown.

The panel positioning section 55 is composed of four sets of positioning pieces 58, 58, 58, 58 provided corresponding to the four corners of the liquid crystal panel element. The panel element 41 is composed of a long side positioning piece 58a abutting in the long side direction and a short side positioning piece 58b abutting in the short side direction. The long side positioning piece portion 58a has a one-letter cross section extending parallel to the long side direction of the liquid crystal panel element 41, and the short side positioning piece portion 58b similarly extends parallel to the short side direction of the liquid crystal panel element 41. It has a single-character cross section. That is, the long side positioning piece portion 58a and the short side positioning piece portion 58b are abutted against the corner of the liquid crystal panel element 41 from the orthogonal direction in the plane of the liquid crystal panel element 41 to position the same. A sub-short side positioning piece portion 58c is also formed at an intermediate position between the left and right sides of the drawing.

On the other hand, the substrate holder 52 is
1, a pair of board supporting bosses 6 formed integrally with the case bottom 34a of the lid case 34 and protruding from the case bottom 34a to support both ends of the circuit board 42 in the long side direction.
0,60. Each substrate support boss 60 is
A positioning pin portion 60a corresponding to the positioning hole 42b of the circuit board 42;
It is formed integrally with the screwing boss portion 60b corresponding to c.

More specifically, the circuit board 42 is screwed so as to be positioned and mounted on a pair of left and right board supporting bosses 60, 60 erected on the case bottom 34 a of the lid case 34. Stopped and fixed. Also, the circuit board 4
2, the liquid crystal panel element 41 is positioned at the four sets of positioning pieces 58, 58, 58, 58 and is mounted on the three sets of panel support boss portions 56, 56, 56. It is attached and fixed. The three sets of panel support bosses 56, 56, 56 are located inside the four sets of positioning pieces 58, 58, 58, 58 in the in-plane direction. Needless to say, they are supporting (contacting).

As described above, in the present embodiment, in order to directly support the liquid crystal panel element 41 with the lid case 34, the liquid crystal panel element 41 and the circuit board 42 are formed integrally with the lid case 34, respectively. The liquid crystal panel element 41 and the circuit board 42 can be accurately positioned with respect to the lid case 34 because the liquid crystal panel 51 is fixed to the board holder 52 in a positioning state. The element 41 can be formed to a required size regardless of its size. Therefore, the circuit board 42 can be formed compactly,
The number of components and the space around the liquid crystal panel element 41 can be reduced.

In addition, the liquid crystal display 20
The upper cover 18 can be made relatively compact and lightweight with the size of the upper cover 18 being sufficiently large. This also reduces the load on the hinge mechanism and the like, and enables a simple hinge structure. Further, the liquid crystal panel element 41 is
Since the double-sided adhesive tape 57 is used to stick and hold the panel holder 51, the liquid crystal panel element 41 can be easily attached to the lid case.

The panel holder and the substrate holder are
It is not always necessary to be continuous, but it may be formed in a frame shape. The structure for fixing the panel holder and the substrate holder to the case is not limited to the embodiment.

[0045]

As described above, according to the mounting structure of the liquid crystal display of the present invention and the tape printer having the same, the liquid crystal panel element held in the state of being positioned by the panel holder is directly held on the case body. Therefore, the liquid crystal panel element can be accurately attached to the display case, and the area around the liquid crystal panel element can be made compact. Therefore, the periphery of the liquid crystal display can be configured to be lightweight and compact, and as a whole the device can be reduced in size and weight and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a tape printing apparatus according to an embodiment of the present invention.

FIG. 2 is an external perspective view of the tape printer according to the embodiment in a state where an upper lid is opened.

FIG. 3 is a perspective view of an upper lid incorporating a liquid crystal display as viewed from the back side.

FIG. 4 is an exploded perspective view of the upper lid incorporating the liquid crystal display as viewed from the back side.

FIG. 5 is a cross-sectional view around a liquid crystal display schematically shown.

FIG. 6 is a schematic cross-sectional view of a portion around a conventional liquid crystal display.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tape printing apparatus 2 apparatus main body 3 apparatus case 17 keyboard 18 top cover 20 liquid crystal display 34 cover section case 35 display section case 37 display cover 41 liquid crystal panel element 42 circuit board 42b positioning hole 42c small hole 51 panel holder 52 substrate holder 54 panel support Part 55 Panel positioning part 56 Panel support boss part 58 Positioning piece part 58a Long side positioning piece part 58b Short side positioning piece part 60 Board support boss part 60a Positioning pin part 60b Screw boss part

Continued on the front page F term (reference) 2C055 CC00 CC01 CC05 2H089 HA40 JA10 QA11 QA12 5G435 AA17 AA19 EE02 EE06 EE13 EE50 KK03 KK05 LL08

Claims (9)

[Claims] 1. A liquid crystal display comprising a liquid crystal panel element and a circuit board in which a control circuit for the liquid crystal panel element is incorporated. A display comprising a shallow bottomed case body and a cover case covering an open portion of the case body. In a mounting structure of a liquid crystal display in a tape printing apparatus incorporated in a case, the liquid crystal panel element is disposed on the cover case portion side and the circuit board is disposed on the case body side, and the liquid crystal panel element is A mounting structure for a liquid crystal display, wherein a panel holder for holding the panel in a positioned state is formed integrally with the case body. 2. The panel holder, wherein the panel holder supports the liquid crystal panel element with an adhesive via an adhesive, and a panel which positions the liquid crystal panel element by abutting the panel support on the outside in an in-plane direction of the panel support section. 2. A mounting structure for a liquid crystal display according to claim 1, comprising a positioning portion. 3. The liquid crystal display mounting structure according to claim 2, wherein the adhesive is formed of a double-sided adhesive tape interposed between the panel support and the liquid crystal panel element. . 4. The liquid crystal panel device according to claim 2, wherein the panel supporting portion is formed of three panel supporting boss portions dispersedly arranged corresponding to three positions on an edge portion of the liquid crystal panel element. The mounting structure of the described liquid crystal display. 5. The panel positioning section is composed of four sets of positioning pieces provided corresponding to four corners of the liquid crystal panel element, and each of the positioning pieces is a long side of the liquid crystal panel element. The mounting structure for a liquid crystal display according to claim 2, comprising a long side positioning piece portion abutting in the direction and a short side positioning piece portion abutting in the short side direction. 6. A board holder for holding the circuit board,
6. The mounting structure for a liquid crystal display according to claim 1, wherein the mounting structure is formed integrally with the case body. 7. The substrate holder includes a pair of substrate support bosses that support both ends of the liquid crystal panel element in a long side direction, wherein each of the substrate support bosses corresponds to a positioning hole of the circuit board. 7. The liquid crystal display mounting structure according to claim 6, wherein a positioning pin portion and a screw boss portion corresponding to a small hole for screwing the circuit board are integrally formed. 8. A tape printer comprising the liquid crystal display mounting structure according to claim 1. Description: 9. The liquid crystal display is incorporated in an upper lid having an outer shell formed by the display case, and the upper lid opens and closes a keyboard disposed on an upper surface of the apparatus body with the liquid crystal display being on a lower side. 9. The tape printing apparatus according to claim 8, wherein the tape printing apparatus is covered as possible.