KR100405391B1 - Folder type multi display device - Google Patents

Abstract

The present invention provides a single large screen by connecting a plurality of flat panel display devices, and when unfolded, minimizes the non-display area, and when folded, only one side of the flat panel display device is exposed to the outside and the remaining part is stored inside. A foldable multi display device which is covered by the protective means and which optically compensates the display light to minimize and remove the non-display area, comprising: at least two flat panel display elements and the flat panel display element on both sides A panel housing including an opening support portion for cutting the side wall of the border portion so as to contact each other when the flat panel display element is unfolded and forming an opening, and seating and supporting the flat panel display element, and the front surface of the flat display element. And cover the side of the abutment and the panel housing is folded And a protective member for covering and protecting the side surface of the flat panel display device exposed to the outside through the opening, and folding support means for supporting the panel housing to be folded or unfolded at least 180 degrees.

Description

Folding multi display device {Folder type multi display device}

According to the present invention, in the construction of a multi-display apparatus capable of connecting a plurality of flat panel display devices to realize a single large screen, the flat panel display device is exposed to the outside when folded while minimizing the border non-display area of the flat panel display device. The present invention relates to a foldable multi-display device that can protect side surfaces and improve display quality by optically compensating display light emitted from a flat panel display device to remove non-display areas.

In the early days of the multi-display apparatus, a large screen was implemented using a large number of CRTs. Recently, a multi-display apparatus has been implemented using a flat panel display device to efficiently use a narrow space of portable and office devices and to realize a large screen.

As a flat panel display device, a liquid crystal display (LCD), a thin film transistor (TFT) -LCD, a field emission display (FED), a plasma display panel (PDP), and an electro luminescent (EL) display may be used. It is efficient to construct a multi-system because they are technically and economically difficult when manufactured in a large screen.

In particular, in recent years, the use of portable electronic products such as mobile phones, laptop computers (laptop computers), PDAs, and the like is gradually increasing, and accordingly, flat panel display devices are also becoming lighter and shorter.

In order to realize a large screen with light and thin reduction of the flat panel display device, recently, a plurality of flat panel display devices are configured to be foldable, and when unfolded, at least two flat panel display devices constitute one large screen. The foldable flat panel display device is a screen that is in close contact with each other when the panel is unfolded to realize a multi-screen and a large screen.

However, the foldable flat panel display device has a problem in that the side of the display is completely exposed to the outside in a folded state, which is not visually clean and weak in external impact, and the folding part of the flat panel display device becomes structurally weak when folding and unfolding are repeated. There is concern.

In addition, the conventional foldable flat panel display element includes a non-display area essentially between the border portion, there is a problem that the screen of the two flat panel display element is separated clearly around the border portion.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and a plurality of flat panel display elements are connected to form one large screen, but when unfolded, one side of the flat panel display element directly contacts to minimize the non-display area and folds. In this case, only one side of the flat panel display device is exposed to the outside and the remaining part is stored inside, and the exposed part is covered by the protective means to provide a durable multi display device that is durable against external impact or damage Leave.

In addition, the present invention has another object to improve the display quality by optically compensating the display light emitted from the flat panel display element to minimize and eliminate the non-display area.

Accordingly, in the present invention, at least two flat panel display elements and the flat panel display element are divided into two sides, respectively, and the openings are formed by cutting sidewalls of the border portion so that one side thereof is in contact with each other when the flat panel display element is unfolded. A panel housing including an opening supporting part for seating and supporting the device, and a side surface of the flat panel display device exposed to the outside through the opening when the panel housing is folded when the panel housing is folded to cover the front surface of the flat panel display device. The present invention provides a folding multi-display apparatus including a protective member for covering and protecting and a folding support means for folding and supporting the panel housing to be folded or unfolded at least 180 degrees.

The flat panel display device may be one selected from LCD, EL display, FED and PDP.

Preferably, the panel housing may include a housing body for accommodating the flat panel display element, a support portion formed to place the flat panel display element, and an upper cover covering the surrounding non-display area of the flat panel display element. .

Preferably, the protective member is a film formed of a transparent plastic, and an optical compensation lens may be provided on the upper surface thereof to minimize the non-display area between the two flat panel display devices by refracting the display light emitted from the flat panel display device toward the border portion. The optical compensation lens uses a light transmitting member having an inclined surface having a predetermined angle with respect to the flat panel display.

The present invention proposes a hinge installed at the center of rotation of the two panel housing as the folding support means.

Preferably, the flat panel display device may be configured by being assembled with a driving circuit board and a backlight by a chassis, wherein the chassis is fixed to prevent separation and flow of the flat panel display device assembly, and the panel assembly is maintained at a predetermined height. It includes a supporting member.

In addition, in the present invention, a touch panel or a keyboard installed above the flat panel display device may be configured as an input means.

1 is an exploded perspective view showing a foldable multi display device of the present invention.

Figure 2 is a perspective view of the folded state of FIG.

Figure 3 is an expanded state cross-sectional view of the present invention.

Figure 4 is an exploded perspective view showing another embodiment of the present invention.

Figure 5 is an enlarged cross-sectional view showing the main part of the present invention.

Explanation of symbols on the main parts of the drawings

2,4-plate display element 6-folding support means

8-opening 10,12-support

14-protection member 16-chassis

16a-supporting member 16b-fixing member

18-optical compensation lens 18a-inclined plane

18b-guide plate 20,40-panel housing

22-housing body 22a-opening base

24-cover

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described based on an accompanying drawing.

1 to 3 show the structure of the folded or unfolded state of the foldable multi display device of the present invention.

As shown, the folding multi-display apparatus of the present invention has a panel housing (20) and (40) for dividing two flat panel display elements (2) and (4) into two sides, respectively, and the panel housing (20) ( And folding support means 6 for engaging and supporting 40 to be folded in a completely parallel state or to extend at least 180 degrees.

As the flat panel display elements 2 and 4 disposed adjacent to each other, one of LCD, FED, PDP, and EL display can be selected and used. However, the present invention will be described based on LCD.

Folding support means 6 is configured by installing a hinge on the rotation center of the panel housing (20, 40).

The flat panel display elements 2 and 4 are housed and installed in the panel housings 20 and 40 so that at least one side thereof is in contact with each other. For this purpose, the panel housings 20 and 40 open a portion of the side wall of the abutment part to be opened. (8) is formed. The opening 8 is exposed to the outside with one side that is in contact with the two flat panel display elements 2 and 4 when the panel housings 20 and 40 are folded.

The structure of the flat panel display elements 2 and 4 accommodated in the panel housings 20 and 40 will be described in more detail as follows. The panel housings 20 and 40 include a housing body 22 formed in a box shape and accommodating the flat panel display elements 2 and 4.

The housing body 22 has an open top portion, and cuts off the side wall at the border portion so as to support one side of the flat panel display elements 2 and 4 in the unfolded state and to be in contact with each other. ). Accordingly, one side of the flat panel display elements 2 and 4 is exposed to and exposed to each other through the opening 8 in a state of being seated on the opening receiving portion 22a. In addition, the housing body 22 is provided with a supporting part 10 to support the flat panel display elements 2 and 4 and maintain them at a predetermined height. The supporting part 10 may be installed by attaching a protrusion to the opposite side wall 22b of the abutment part to support the flat panel display elements 2 and 4.

In this case, the flat panel display elements 2 and 4 may include driving ICs 2a and 4a or driving circuit boards and backlights 2b and 4b. The driving circuit boards and / or backlights 2b may be provided. 4b is positioned below the flat panel display elements 2 and 4, and a separate support part 12 may be installed in the housing body 22 to support it.

Meanwhile, FIG. 4 shows another embodiment of the flat panel display elements 2 and 4 housed in the panel housings 20 and 40. In the drawing, the flat panel display elements 2 and 4 are assembled together with the driving IC or the driving circuit board and the backlight and supported by the chassis 16 to form the panel assembly 26.

The panel assembly 26 configured as described above is accommodated in the panel housings 20 and 40 and seated and supported by the opening support part 22a as described above. In addition, in this embodiment, it is structurally advantageous to form the supporting member 16a which is formed downward in the chassis 16 in place of the supporting member 10 described above.

In addition, the chassis 16 is provided with a fixing member 16b to prevent the panel assembly 26 from being separated from the housing body 20 during the folding operation of the case. As shown in the drawing, the fixing member 16b may protrude in the form of a wing from the chassis 16 or may be configured to protrude downward although not shown.

The cover 24 is disposed on the flat display elements 2 and 4 accommodated in this manner. The cover 24 covers the non-display area except for the screen of the opening support part 22a and the flat panel display elements 2 and 4 seated and supported by the support part 10. In addition, the cover 24 is formed in the side of the border portion so that one side is in contact with each other in the state where the two flat panel display elements 2 and 4 are unfolded, and this open structure forms the opening 8.

Meanwhile, in the present invention, the protection member 14 is provided to cover and protect the front screen and the side surface of the flat surface of the flat panel display elements 2 and 4. The protective member 14 is manufactured in the form of a film using a transparent plastic such as polycarbonate, polyacrylate or polyethylene terephthalate (PET), and is bent in a '-' shape to simultaneously screen and side surfaces of the border portion. And cover and protect the side surfaces of the flat panel display elements 2 and 4 that are exposed to the outside through the opening 8, especially when the panel housing 22 is folded. To prevent contact between the liver and the ingress of foreign objects or moisture.

The protection member 14 is attached using an adhesive so as to cover the surface and the side when the input means described later is installed on the flat panel display elements 2 and 4. In addition, the protective member 14 may be formed in the 'c' shape as shown in Figure 5, which is to improve the adhesion of the protective member.

In addition, the present invention further comprises an optical compensation lens 18 installed on the lower or upper portion of the protective member (14).

As shown in FIG. 5, the optical compensation lens 18 refracts and collects the display light emitted from the flat panel display elements 2 and 4 toward the border portion, so that the ratio between the flat display elements 2 and 4 is reduced. Minimize and optically compensate the display area.

In this case, the flat panel display elements 2 and 4 form at least a transparent electrode and an alignment layer (not shown) on the inner surface of the pair of substrates, and are sealed by injecting a liquid crystal material into an inner space sealed with sealant. The polarizing plates 18 are attached to predetermined positions on both front and rear sides of the flat panel display elements 2 and 4, and the polarizing plates 19 may be provided outside the protective member 14 or the optical compensation lens 18.

The optical compensation lens 18 refracts the display light L emitted from the flat panel display elements 2 and 4 toward the border portion so as to meet each other on an extension line of the border portion. Remove it. That is, the optical compensation lens 18 uses the principle that light is refracted at the boundary of different media. For this purpose, a light transmitting member made of resin and plastic is used as the refractive medium, and the refractive angle of the display light L is constant. In order to maintain, a plurality of inclined surfaces 18a having a predetermined inclination angle with respect to the surface of the flat panel display element are formed.

In the present invention, the space between the points where the optical compensation lens 18 and the display light L meet can be formed as a space, and the light guide plate 18b can be further provided.

In the present invention, the optical compensation lens 18 may be used without using the film as the protective member 14. In this case, the optical compensation lens 18 covers and protects the screen and the side surfaces of the flat panel display elements 2 and 4 at the same time.

In addition, in the present invention, a touch panel 11 or a keyboard (not shown) may be used as the input means. The touch panel 11 is installed on the flat panel display elements 2 and 4 as shown in FIG. 3, wherein the protection member 14 and / or the optical compensation lens 18 are disposed on the touch panel 11. Install it. In addition, the upper plate of the touch panel 11 and the protective member 14 may be integrated. In the case of using the touch panel 11, a data information processing apparatus such as a microcomputer is installed in the panel housings 20 and 40, and the data information processing apparatus and the driving ICs 2a and 4a and the touch panel 11 are installed. Are connected via mutual interface.

When using a keyboard as an input means can be connected via an external interface, it can be connected to the panel housing 20, 40 installed.

Based on the present invention configured as described above in more detail the folding operation of the multi-display device as follows.

As shown in FIG. 2, the case of the present invention is conveniently handled because the panel housings 20 and 40 and the flat panel display elements 2 and 4 housed therein are stored and moved in a folded state in parallel. In this case, the panel housings 20 and 40 allow only the outer surface of one side wall of the flat panel display elements 2 and 4 to be exposed to the outside, and the rest of the flat panel display elements 2 and 4 to be housed inside. One side of the cover) is covered and protected by a protective member (14).

The folding and multi-display device is stored and moved as shown in FIGS. 1 and 3 for use. In this case, the panel housings 20 and 40 of the present invention have an opening support 22a and a support 10. Since the flat panel display elements 2 and 4 are stably supported by the supporting member 16a and the fixing member 16b, the flat display devices 2 and 4 can be protected from flow, separation and external shocks, and the contact surface is protected by the protective member 14. do.

In addition, since the display light L of the flat panel display elements 2 and 4 unfolded as described above is collected by the optical compensation lens 18 and emitted toward the center thereof, the non-display area is removed and minimized.

As can be seen through the embodiments of the present invention described above, the folding multi-display device can form a large screen by connecting a plurality of flat panel display elements, and when unfolded, one side of the flat panel display element is in contact with each other to display a non-display area. Minimize, and when folded, only one side of the flat panel display element is exposed to the outside and the remaining part is housed inside so that it is stably supported by the support and the fixing member, and the exposed part is covered by the protection member, To protect the flat panel display device from damage.

In addition, according to the present invention, the display light emitted from the flat panel display can be optically compensated to minimize and remove the non-display area, thereby improving display quality.

Claims (11)

At least two flat panel display elements each having one side adjacent to each other when unfolded horizontally; A panel housing for dividing the flat panel display device into two sides; In the folding multi display device comprising a folding support means for supporting the panel housing to be folded or unfolded at least 180 degrees, The panel housing includes an opening formed by cutting a side wall of a border portion so that one side thereof is adjacent to each other when two flat panel display elements are unfolded, and a support portion for seating and supporting the flat panel display element; An upper cover covering a non-display area of the flat panel display device; And a protective member covering the front screen and the side surface of the flat panel display and connected to the panel housing to close the opening of the panel housing and to be connected to the upper cover. The foldable multi-display apparatus according to claim 1, wherein the flat panel display element is one of an LCD, an EL display, an FED, and a PDP. delete delete 2. The folding member according to claim 1, wherein the protection member is integrally formed with an optical compensation lens which refracts the display light emitted from the flat panel display element toward the border portion so that the non-display area between the flat panel display elements is not displayed. Multi display device. The optical compensation lens of claim 1, further comprising an optical compensation lens disposed above or below the protective member to refract display light emitted from the flat panel display element toward the border portion so that the non-display area between the flat panel display elements is not displayed. Folding multi display device characterized in that. delete delete The display device of claim 1, wherein the flat panel display device is assembled with a driving circuit board and a backlight by a chassis, and the chassis includes a fixing member for preventing separation and movement of the panel assembly and a support member for maintaining the panel assembly at a predetermined height. Folding multi display device configured to include. delete The foldable multi-display apparatus according to claim 1, wherein the protection member has a shape of "a" or "c".