DISPLAY DEVICE

A display device includes: a display panel for displaying an image; a holding member for holding the display panel; and a double-sided tape for fixing the display panel relative to the holding member, which has a longitudinal tape body part adhered to both the holding member and the display panel, and a tape end part provided to one end part in the longitudinal direction of the tape body part and arranged more outside than an outer periphery end part of the display panel. A surface of at least a section of the tape end part on the holding member side is arranged oppositely at an interval with the holding member.

TECHNICAL FIELD

The present invention relates to a display device.

BACKGROUND ART

A display device having a structure in which a display panel is adhered to a holding member (frame) with a double-sided tape has been known (the following Patent Document 1). Furthermore, in the Patent Document 1, it is described that when a display device is inspected after assemble of the display device and found that the display panel is not rightly arranged or an extraneous substance is found between a back-light and the display panel, a double-sided tape is peeled to remove the display panel from the holding member, after cleaning the display panel, once more, the display panel is fixed with the double-sided tape.

RELATED ART DOCUMENT

Patent Documents

Patent Document 1: Japanese Unexamined Patent Application Publication NO. 2008-203444

Problem to be Solved by the Invention

In the above structure, when the display panel is removed from the holding member, it is necessary to peel the double-sided tape with the display panel and the holding member separated from each other, there is a care of a case where an external force is applied on the display panel.

DISCLOSURE OF THE PRESENT INVENTION

The present invention was completed based on a situation such as described above, and it is intended to provide a display device capable of removing the display panel from the holding member while suppressing a situation where an external force acts on the display panel.

Means for Solving the Problem

In order to solve the above problem, a display device of the present invention includes: a display panel for displaying an image; a holding member for holding the display panel; and a double-sided tape for fixing the display panel to the holding member, which has a longitudinal tape body part adhered to both the holding member and the display panel and a tape end part provided to one end part in the longitudinal direction of the tape body part and arranged more outside than an outer periphery end part of the display panel, in which a surface on the holding member side in at least a part of the tape end part is arranged oppositely at an interval with the holding member. According to the above structure, an operator may draw out the tape body part from between the holding member and the display panel by grasping the tape end part with a tool and by drawing out. Thus, in comparison with a method of peeling the double-sided tape by separating the display panel and the holding member each other, a situation where the external force is applied on the display panel may be suppressed. Furthermore, a surface on the holding member side in at least a part of the tape end part is arranged oppositely at an interval with the holding member. Therefore, the tape end part may be readily peeled and grasped.

Advantageous Effect of the Invention

According to the present invention, a display device capable of removing a display panel from a holding member while suppressing a case where the external force is applied on the display panel may be provided.

BEST MODES FOR CARRYING OUT THE INVENTION

First Embodiment

The first embodiment of the present invention will be described with reference toFIG. 1toFIG. 3. In the present embodiment, as a display device, a liquid crystal display device10is illustrated. By the way, in a part of each of drawings, an X axis, a Y axis and a Z axis are shown, and each axis direction is drawn so as to be a direction shown in each of drawings. Furthermore, an upper side inFIG. 1andFIG. 3is a front side (a lower side is a back side). As shown inFIG. 1, the liquid crystal display device10according to the present embodiment forms a rectangular shape as a whole, is provided with a back light device12(back light unit) and a liquid crystal panel11(display panel) capable of displaying an image with a light emitted from the back light device12, and these are integrally held by a frame-like bezel13.

The liquid crystal panel11that includes a pair of substrates11A and11B (seeFIG. 3) adhered with a predetermined gap separated and a liquid crystal (not shown in the drawing) encapsulated between both glass substrates11A and11B may be used. A front side substrate of the pair of substrates11A,11B is taken as a counter substrate11A, and a back side substrate is taken as an array substrate11B (active matrix substrate, element substrate). Both the counter substrate11A and the array substrate11B are formed by lamination of various kinds of films on an inner surface side of a glass substrate made of glass. The array substrate11B includes a switching element (for example TFT) connected to mutually orthogonal source line and gate line, a pixel electrode connected to the switching element, and furthermore an orientation film. The counter substrate11A includes a color filter in which each of colored parts of R (red color), G (green color), and B (blue color) is arranged in a predetermined array, a counter electrode, furthermore the orientation film. By the way, on the outside of each of the both substrates, a polarization plate (not shown in the drawing) is arranged. The liquid crystal panel11is arranged with a posture in which a normal direction of the plate surface coincides with a Z-axis direction.

The back light device12forms, as shown inFIG. 1, a rectangular shape in a plan view, that is, a so-called edge light type (side light type). As shown inFIG. 1, the back light device12includes a substantially box-type chassis14and a flame20opening on a front side, that is, a light-emitting side (liquid crystal panel11side). Furthermore, on a back side of a bottom plate of the chassis14, substrates such as a control substrate or LED driving circuit board that are not shown are attached. Inside of the chassis14, an LED substrate18on which an LED17(Light Emitting Diode) is mounted, and a light guide plate19are housed. In the back light device12, on both end parts on a longitudinal side along an X-axis, an LED substrate18is arranged respectively, and a pair of LED substrates18are arranged in the form of sandwiching the light guide plate19from both sides of its short side direction (a Y axis direction). The LED17that is a light source is a so-called top-emitting type, and a plurality of the LEDs are arranged along a longitudinal direction (X-axis direction) of the light guide plate19.

The light guide plate19is made of a synthetic resin material (for example, an acrylic resin such as PMMA) that has a refractive index sufficiently higher than that of air and substantial transparency (excellent transparency) and has a function of introducing light emitted from the LED17from an end surface on a long edge side, and, while making the light propagate inside thereof, rising up so as to direct on the liquid crystal panel11side (front side, an optical member15side described below) along the Z-axis direction and making exit from a plate surface. On a back side of the light guide plate19, as shown inFIG. 2, a chassis side reflective sheet14R is arranged. The chassis side reflective sheet14R has a function of reflecting the light emitted on a back side of the light guide plate19to a front side to emit from the front side (light output side). An optical member15is interposed between the liquid crystal panel11and the light guide plate19. The optical member15is formed by laminating a plurality of sheet-like members (three sheets in the present embodiment) appropriately selected from a diffusion sheet, a lens sheet, and a reflective polarization sheet, and has a function of transmitting light emitted from the light guide plate19, and emitting light toward the liquid crystal panel11while imparting a predetermined optical action to the transmitted light.

The frame20(holding member) may be formed by injection molding, for example, a PC (polycarbonate) resin or an ABS (acrylonitrile butadiene styrene) resin. The frame20has, as shown inFIG. 1andFIG. 3, a rectangular frame shape, and includes a frame part21, a side frame part22projected toward the back side from an outer periphery part of the frame part21(peripheral four sides) and a side frame part23(omitted from showing inFIG. 1) respectively projected toward a front side from an outer periphery end part of the frame21. The frame20and the bezel13are fixed to a side plate of the chassis14with a screw (not shown in the drawing). The frame part21covers the outer periphery edge part of the light guide plate19from the front side and has a shape of covering the outer periphery edge part of the liquid crystal panel11from the back side. On a front surface of the frame part21, as shown inFIG. 3, the back surface of the liquid crystal panel11is fixed by adhering with a double-sided tape30. Thus, the outer periphery edge part of the liquid crystal panel11is held by the frame20.

The double-sided tape30includes, as shown inFIG. 3, a tape body part31adhered to both the frame20and the liquid crystal panel11(array substrate11B), and a tape end part34provided at one end part in the longitudinal direction of the tape body part31and arranged outside (on a left side inFIG. 3) than the outer periphery end part of the liquid crystal panel11. That is, the tape end part34is adhered to the frame part21but is not adhered to the liquid crystal panel11. As shown inFIG. 1, the double-sided tape30has a linear shape and is arranged in each of four sides of the frame20. The tape body part31has a longitudinal shape that follows one side in the outer periphery end part of the liquid crystal panel11. The tape end parts34of each of the double-sided tapes30are arranged respectively at corner parts of the frame20. On a surface of a tape end part34side in the frame part21, as shown inFIG. 3, a recess part24covered by a part35of the tape end part34is formed. Thus, a surface on a frame20side in the part35of the tape end part34is arranged oppositely at an interval with the frame20(a bottom surface24A of the recess part24). By the way, the double-sided tape30is formed by coating an adhesive on both of front and back surfaces of a flexible tape-like base material.

According to the present Embodiment, an operator can draw out the tape body part31from between the frame20and the liquid crystal panel11by grasping a part35of the tape end part34with a tool (for example, pincette) and dragging the part35along an extension direction of the double-sided tape30. Thus, a situation where the external force is applied on the liquid crystal panel11can be suppressed in comparison with a method where the double-sided tape30is peeled by keeping the liquid crystal panel11away from the frame20from each other. By the way, when the liquid crystal panel11and the frame20are kept away from each other, an external force in a direction orthogonal to a planar direction of the liquid crystal panel11tends to work, and the force tends to work in a direction where the liquid crystal panel11is curved. On the other hand, in a method where the tape body part31is extracted, since the force tends to be applied in a direction along the planar direction of the liquid crystal panel11, a situation where the force works in a direction where the liquid crystal panel11curves may be effectively suppressed.

Furthermore, a surface on the frame20side in the part35of the tape end part34is arranged oppositely at an interval with the frame20. Therefore, in comparison with a structure where an entire surface of the tape end part34contacts with the frame20, the tape end part34may be readily peeled and grasped. Specifically, by inserting a tool for grasping the tape end part34into a space between a bottom surface of the recess part24and the tape end part34, the tape end part34may be readily grasped. Furthermore, as shown inFIG. 2, the recess part24forms a shape long in a direction orthogonal to a longitudinal direction of the double-sided tape30. Therefore, compared with the recess part24, when the tool such as the pincette is inserted, the tape end part34is readily grasped.

Second Embodiment

Next, an Embodiment 2 of the present invention will be described with reference toFIG. 4. To the identical part as the above Embodiment, the identical mark is provided to avoid duplicated description. As shown inFIG. 4, in a liquid crystal display device110of the present Embodiment, in the recess part24of the frame20, the tape end part34is housed. A surface on the frame20side in the part35of the tape end part34is arranged oppositely at an interval with the bottom surface (frame20) of the recess part24. Thus, when a tool is inserted in the recess part24, the part35of the tape end part34may be readily grasped.

Third Embodiment

Next, an Embodiment 3 of the present invention will be described with reference toFIG. 5. To the identical part as the above Embodiment, the identical mark is provided to avoid duplicated description. As shown inFIG. 5, in a liquid crystal display device210of the present Embodiment, the tape end part34is adhered to the frame20(frame part21), and a contact surface with the tape end part34in the frame20is formed into a grain surface224(surface having fine irregularity). Thus, a surface on the frame20side in the part235of the tape end part34is arranged oppositely at an interval with the frame20. By forming a contact surface with the tape end part34into the grain surface224, a contact area between the tape end part34and the frame20may be made smaller. Therefore, the tape end part34may be readily peeled from the frame20, and the tape end part34is made to be readily grasped.

Fourth Embodiment

Next, an Embodiment 4 of the present invention will be described with reference toFIG. 6. To the identical part as the above Embodiment, the identical mark is provided to avoid duplicated description. As shown inFIG. 6, in a liquid crystal display device310of the present Embodiment, the tape end part34is adhered to the frame20via an auxiliary double-sided tape324having adhesive force weaker than the adhesive force of the tape end part34. A surface on the frame20side in the part35of the tape end part34is arranged oppositely at an interval with the frame20. By comparing with a structure where the tape end part34is directly adhered to the frame20, by intervening the auxiliary double-sided tape324, the tape end part34may be readily peeled from the frame part20, and the tape end part34is made to be readily grasped.

Fifth Embodiment

Next, an Embodiment 5 of the present invention will be described with reference toFIG. 7. To the identical part as the above Embodiment, the identical mark is provided to avoid duplicated description. As shown inFIG. 7, in a liquid crystal display device410of the present Embodiment, the auxiliary double-sided tape324is engaged with a recess part424of the frame part21. That is, a surface on the frame20side in the part35of the tape end part34is arranged oppositely at an interval with the frame20. By comparing with a structure where the tape end part34is directly adhered to the frame20, by intervening the auxiliary double-sided tape324, the tape end part34may be readily peeled from the frame part20, and the tape end part34is made to be readily grasped.

Sixth Embodiment

Next, an Embodiment 6 of the present invention will be described with reference toFIG. 8. To the identical part as the above Embodiment, the identical mark is provided to avoid duplicated description. As shown inFIG. 8, in a liquid crystal display device510of the present Embodiment, a tape end part534of a double-sided tape530includes a base end part535linked to one end part in the longitudinal direction of the tape body part31and a tip part536overlapped with the base end part536. The tip part536is arranged in the form of covering the base end part535from a back side and is interposed between the base end part535and the frame20. That is, the base end part535(at least a part of a tape end part) is arranged oppositely at an interval with the frame20. By interposing the tip part536between the base end part535and a holding member, between the base end part535and the frame20, a space S6corresponding to a thickness of the tip part536may be provided and by inserting a tool for grasping the tape end part534in the space S6, the base end part535can be readily grasped.

Seventh Embodiment

Next, an Embodiment 7 of the present invention will be described with reference toFIG. 9. To the identical part as the above Embodiment, the identical mark is provided to avoid duplicated description. As shown inFIG. 9, in a liquid crystal display device610of the present embodiment, a tape end part634of a double-sided tape630includes a base end part635linked to one end part in the longitudinal direction of the tape body part31and a tip part636overlapped with the base end part635. The tip part636is arranged in the form of covering the base end part635from a front side, and the tip part636(at least apart of the tape end part) is arranged oppositely at a space S7with the base end part635. Thus, by inserting a tool for grasping the tape end part634into the space S7between a part of the tip part636and the base end part635, the tip part636may be readily grasped.

Other Embodiment

The present invention is not limited to the Embodiments described above and explained with reference to the drawings, and, for example, the following Embodiments are also contained in the technical range of the present invention.

(1) Although a structure in which an LED substrate18is arranged to each of a pair of peripheral end parts along a longitudinal direction in the light guide plate19is shown in the above Embodiments, the present invention is not limited thereto.
(2) In the above Embodiments, an adhesive force of the tape end part34of the double-sided tape30may be set weaker than the adhesive force of the tape body part31, and the tape end part34may be made to be readily peeled from the frame20thereby.
(3) Although in each of the Embodiments described above, a liquid crystal display device that uses a liquid crystal panel as the display panel was illustrated, also in the display device that uses other kind of display panel, the present technology may be applied. The structures (structures for easily performing the grasping and peeling of the tape end part) according to the tape end part illustrated in each of the Embodiments may be appropriately combined in the possible range.

EXPLANATION OF SYMBOLS

11: Liquid crystal panel (display panel),20: Frame (holding member),30: Double-sided tape,31: Tape body part,34,534,634: Tape end part,35,235: a part of the tape end part,10,110,210,310,410,510,610: Liquid crystal display device (display device),24,424: Recess part,224: Grain surface324: Auxiliary double-sided tape,535,635: Base end part,536,636: Tip part,S7: Space