Displayer

[0021] [1. First Embodiment]

[0022] figure 1 is a diagram showing a cross-sectional configuration of a display (display 1 ) according to the first embodiment of the present disclosure, figure 2 It is an exploded perspective view showing the entire configuration of the display 1 . The display 1 is, for example, a liquid crystal display used as a television apparatus. The display 1 has such a structure: the backlight unit is accommodated in a case 20, and the case 20 includes a front frame body 21 (front member) and a rear casing 22 (back member); the backlight unit includes the display panel 10, The optical sheet 16 , the light guide plate 17 , the light source 18 , etc.; the front frame body 21 and the rear cabinet 22 are adhered to each other by the adhesive portion 23 . On one end face of the light guide plate 17 , a plurality of LEDs are arranged as the light source 18 . The light emitted from the light source 18 illuminates the display panel 10 through the light guide plate 17 and is extracted by the front frame 21 as display light.

[0023] The display panel 10 displays images, such as moving images or still images, such as a liquid crystal display panel having a liquid crystal layer 13 between two substrates, ie, a TFT substrate 12 and a CF substrate 14 . In addition, polarizing plates 11 and 15 that allow polarized light in a specific direction to pass therethrough are respectively provided on the surface (front (display surface)) of the TFT substrate 12 and the surface (back) of the CF substrate 14 , which are the same surface as the liquid crystal The surface of layer 13 is opposite.

[0024] The TFT substrate 12 is constituted by, for example, arranging a plurality of pixel electrodes (not shown) in a matrix on a glass substrate. This TFT substrate 12 is provided with TFT (Thin Film Transistor) devices that drive the respective pixel electrodes, and gate lines, source lines, and the like (none of which are shown) connected to these TFT devices. The pixel electrodes are made of, for example, a transparent conductive material such as ITO (Indium Tin Oxide), and are provided individually for each sub-pixel (not shown) on a glass substrate.

[0025] The CF substrate 14 has color filters (not shown), such as strip filters of red (R), green (G) and blue (B), on a glass substrate, and also has an effective display area on the color filters S2 has a counter electrode (not shown) on almost the entire surface. This counter electrode is similar to the pixel electrode described above and is constructed of, for example, a transparent conductive material such as ITO. It should be noted that although not shown here, a spacer may be provided between the counter electrode and the pixel electrode on the TFT substrate 12 side, thereby maintaining a space between these substrates.

[0026] For example, in the case of a vertical alignment type liquid crystal panel, the liquid crystal layer 13 includes liquid crystal molecules of negative dielectric constant anisotropy, and an alignment film (not shown) maintains a polymer structure of the liquid crystal molecules near the interface. Liquid crystal molecules have a property that the dielectric constant in the long-axis direction is larger than that in the short-axis direction. Based on this property, the liquid crystal molecules are arranged so that the long axes of the liquid crystal molecules are perpendicular to the substrate when the driving voltage is OFF, and the liquid crystal molecules are oriented so that the long axes of the liquid crystal molecules are parallel to the substrate when the driving voltage is ON. Thus, an image is displayed on the liquid crystal display panel.

[0027] The optical sheet 16 is a sheet that performs various optical functions on the light emitted from the light source 18 and illuminated by the light guide plate 17 to the display panel 10 . As an optical sheet, the sheet may be provided in a single layer or in a stacked layer. This sheet has, for example, the function of decomposing the display light entering the display panel 10 from the light source 18 through the light guide plate 17 into the incident light and the polarized light component orthogonal to the incident light, obtaining a wide viewing angle by ensuring the phase difference between the light waves, or Anti-coloring function, diffuse display light function, etc.

[0028] The light guide plate 17 allows light entering from the light source 18 to propagate therethrough, thereby guiding the light to the display panel 10, and has, for example, a rectangular flat shape. A material with high transparency such as glass may be used as the material of the light guide plate 17, but the light guide plate 17 may be constructed using other materials as long as the material allows the light from the light source 18 to propagate therethrough. For example, the light guide plate 17 may be formed using a light scattering material in which light scattering fine particles are dispersed, or a light diffusing material. Specifically, acrylic resin, polymethyl methacrylate (PMMA), polycarbonate (PC), cyclopolyene (COP), or the like can be used. The shape, size, refractive index, density, density distribution, etc. of the light guide plate 17 can be freely adjusted to obtain desired characteristics.

[0029] As the light source 18 , for example, in addition to white LEDs (Light Emitting Diodes), LEDs emitting red light, blue light, and green light, etc. may be employed. In addition, in addition to point light sources such as LEDs, linear light sources such as fluorescent lamps may also be used. like figure 2 As shown, here, the light source 18 is disposed on one end surface (lower surface) of the light guide plate 17 , but it is not limited to this, and may be distributed along the four sides of the light guide plate 17 .

[0030] The shape of the case 20 is, for example, substantially like a cuboid, and has two opposite surfaces, ie, a display surface and a back surface, and a side surface between the two surfaces. In this embodiment, the chassis 20 is configured to include a front panel (front frame body 21 ) and a rear panel (rear casing 22 ). The front panel covers a part of the front of the display panel 10, and the rear panel covers the back of the display panel 10 and the side surfaces between the front and the back.

[0031] As described above, the front frame body 21 is a frame for fixing the display panel 10 provided on the front side of the display panel 10 . The front frame 21 has an opening 21A that allows the image displayed on the display panel 10 to be seen. For example, a material having high thermal conductivity, specifically, aluminum (Al) is used as the material of the front frame body 21 . In addition to this, iron (Fe), polycarbonate (PC), or a plastic in which ABS resin is added to PC can also be used.

[0032] The rear chassis 22 is also used to secure the display panel 10 while covering at least the back of the display panel 10, and here as described above, the back of the display panel 10 and the sides between the front and the back. Like the front frame body 21 , for example, a metal having high thermal conductivity, specifically, Al, is used as the material of the rear cabinet 22 . In addition to this, Fe or the like can also be used.

[0033] In the present embodiment, the front frame body 21 and the rear cabinet 22 are adhered to each other by the adhering part 23 . By integrating the front frame body 21 and the rear cabinet 22 with this adhesive portion 23, a connecting member (eg, an intermediate cabinet or the like) for connecting the front frame body 21 and the rear cabinet 22 is omitted. Examples of the adhesive portion 23 include adhesives having sufficient adhesive strength and elasticity, specifically adhesives such as acrylic resin, urethane resin, epoxy resin, vinyl chloride resin, and modified silicone resin. In addition, when the front frame body 21 and the rear cabinet 22 are adhered to each other by the adhesive part 23 as in the present embodiment, the front frame body 21 and the rear cabinet 22 are preferably constructed using the same material, thereby improving the bonding strength Wait. For example, a metallic material is preferably used to provide shielding against electromagnetic waves generated by various circuits and electronic components provided inside the display 1 . This reduces unwanted radiation generated by various circuits and electronic components arranged inside the display 1 .

[0034]It should be noted that, here, the adhesive portion 23 also functions as a sealing portion of the display panel 10 by covering portions of the rear surface, the front surface, and the side surface of the display panel 10 . In addition, a spacer 24 is provided between the display panel 10 and the rear cabinet 22 , thereby securing the distance between the display panel 10 and the rear cabinet 22 and partitioning the area where the adhesive portion 23 is formed. In addition, a piece of PORON 25 for positioning the light guide plate 17 and absorbing the linear expansion of the light guide plate 17 is provided between the spacer 24 and the light guide plate 17, but it may be omitted.

[0035] like figure 2 As shown, the display 1 is completed by: accommodating the display panel 10, the optical sheet 16, the light guide plate 17, etc. in a case 20 including a front frame body 21 and a rear case 22, and then installing the case 20 in the light source 18 and inside a stand 19 of a drive board for speakers and the like. This base 19 has, for example, a structure fixed to the base and has a rectangular planar shape, but it is not limited thereto, and may have a pitch-and-swing mechanism capable of vertically or laterally changing the screen orientation of the display panel 10 .

[0036] In this display 1, when light emitted from the light source 18 is incident on the display panel 10 through the light guide plate 17 and the optical sheet 16, the incident light passes through the polarizing plate 11 and then passes through the liquid crystal layer 13 while being applied to the TFT substrate according to the The image voltage between 12 and the transparent electrode of the CF substrate 14 is modulated for each pixel. After passing through the liquid crystal layer 13 , the light passes through the color filter and is extracted to the outer side (one surface side) of the polarizing plate as color display light.

[0037] Image 6 The cross-sectional configuration of the related art display 100 is shown. In the display 100, the display panel 110, the optical sheet 116, and the light guide plate 117 are accommodated in the chassis 120 similarly to the display 1 of the present embodiment described above. The case 120 is configured to include a front case 121 , a rear case 122 , a top case 123 and a middle case 124 . In the display 100 of the related art, the top case 123 and the middle case 124 are located between the front frame 121 and the rear case 122 , and the front frame 121 and the rear case 122 pass through the top case 123 and the middle case 124 connect. Specifically, the top case 123 and the rear case 122 are fixed with the middle case 124 therebetween by screws (not shown). The panel module assembled in this way is held between the front frame body 121 and the rear cover 125 and fixed with screws (not shown). Therefore, an area for fixing the chassis 120 with screws must be provided in the frame area S1 of the display 100 . In addition, the number of components including the top casing 123, the middle casing 124, screws and the like is large, which increases the weight.

[0038] On the contrary, in the display 1 of the present embodiment, the chassis 20 has two parts, namely, the front frame body 21 and the rear cabinet 22 , and the front frame body 21 and the rear cabinet 22 are adhered by the adhesive part 23 to each other. In other words, an area similar to the area in the frame area S1 of the related art display 100 where the chassis 120 is fixed with screws may not need to be fixed, so that the frame area S1 can be reduced. In addition, the connecting members (the top case 123 , the middle case 124 and the screws) connecting the front frame 121 and the rear case 122 may be unnecessary, so that the cost and the weight of the display 1 can be reduced.

[0039] As described above, in the display 1 of the present embodiment, the front frame body 21 and the rear cabinet 22 configuring the cabinet 20 are adhered to each other by the adhesive portion 23, so that the use of the display 1 can be reduced in the frame area S1. The area for connecting the components of the chassis 20 . In other words, the frame of the display 1 can be narrowed.

[0040] In addition, a connecting member for connecting the members of the chassis 20 (the front frame body 21 and the rear cabinet 22 ) may be unnecessary, so that the cost and the weight of the display 1 can be reduced.

[0041] The second to fourth embodiments will be described below. It should be noted that the same elements as those of the first embodiment will have the same features and thus the description thereof will be omitted.

[0042] [2. Second Embodiment]

[0043] image 3 A cross-sectional configuration of the display 2 according to the second embodiment of the present disclosure is shown. The display 2 includes a display panel 10, an optical sheet 16 and a light guide plate 17 accommodated in a case 30, and the display 2 differs from the display of the first embodiment in that the case 30 includes a front frame 31 (front member), a rear panel 32 (rear member), a top case 33 and a middle case 34 .

[0044] Similar to the first embodiment, the case 30 is substantially shaped like a rectangular parallelepiped, for example, and has two opposite faces, ie, a display face and a back face, and a side face therebetween. In this embodiment, the front frame body 31 and the rear panel 32 are connected by the top casing 33 and the middle casing 34 . The front frame body 31 serves as a front panel covering the display surface (front surface) and side surfaces of the display panel 10 . The rear panel 32 serves as a back panel covering the back surface of the display panel 10 .

[0045] The front frame body 31 is a frame for fixing the display panel 10, similar to the first embodiment. The front frame body 31 has an opening 31A that makes the image displayed on the display panel 10 visible. As the material of the front frame body 31 , for example, a material having high thermal conductivity, specifically, Al is used. In addition to this, Fe, polycarbonate (PC), or a plastic in which ABS resin is added to PC can also be used.

[0046] As described above, the rear panel 32 is provided to cover the back surface of the display panel 10 as described above, and to support the entire display 2 . The rear plate 32 is a rigid member. In addition, it is preferable to use a member having a high Young's modulus or a low coefficient of linear expansion. Specifically, glass, ceramics, or metals such as Al and Fe with a thickness of about 1.0 mm to about 3.0 mm (both inclusive) may be used. In this embodiment, a member having rigidity is used as the rear member of the cabinet 30 . Therefore, the rear case 22 and support members such as external members (eg, the rear cover 125 (see Image 6 )) to support the entire display 2.

[0047] In addition, on the entire back surface of the rear plate 32 , a light shielding film 32A is provided to prevent external light from entering the display 2 . Examples of this light-shielding film 32A include a resin film such as a black film into which a black colorant is mixed and which has an optical density of about 1 or more.

[0048] The top case 33 and the middle case 34 are provided to connect the front frame 31 and the rear panel 32, as described above. Similar to the material of the rear case 22 in the first embodiment, examples of the respective materials of the top case 33 and the middle case 34 include metals such as Al or Fe. It should be noted that the top case 33 and the middle case 34 may be molded using a material having a lower thermal conductivity than metal, such as synthetic resin or the like. The use of the low thermal conductivity material suppresses the transfer of heat generated by the light source 18 to the front frame body 31 and enables the heat to be efficiently dissipated from the back side while suppressing the temperature rise on the front side of the display 2 .

[0049] In this display 2, light from the light source 18 is incident on the display panel 10 through the light guide plate 17 and the optical sheet 16 in a manner similar to the first embodiment. The incident light passes through the polarizing plate 11 and then passes through the liquid crystal layer 13 while being modulated for each pixel according to the image voltage applied between the transparent electrodes of the TFT substrate 12 and the CF substrate 14 . After passing through the liquid crystal layer 13, the light passes through the color filter, thereby being extracted to the outside (one surface side) of the polarizing plate as color display light.

[0050] Image 6 The cross-sectional configuration of the related art display 100 is shown. On the back of the display 100 , a rear chassis including a rear case 122 and the like and an external member including a rear cover 125 and the like are provided to accommodate the display panel 110 and support the entire display 100 .

[0051] In contrast, in the display 2 of the present embodiment, a rigid rear panel (rear panel 32 ) is provided for the entire rear surface of the display panel 10 and the chassis 30 that accommodates the display panel 10 . This makes it possible to replace a plurality of members for supporting the typical display 100, including the rear cabinet 122 and the rear cover 125, etc., with one member.

[0052] As described above, in the display 2 of the present embodiment, a material having rigidity is used as the rear panel covering the entire rear surface of the display panel 10, so that the display panel can be supported by one member (the rear panel 32) which is in the In the related art, it is supported by a plurality of members including the rear case 122 and the rear cover 125 and the like. In other words, the display 2 can be made thinner.

[0053] In addition, the number of parts of the display 2 can be reduced and thus the cost can be reduced, and the weight can be reduced compared to the display 1 .

[0054] [3. Third Embodiment]

[0055] Figure 4 A cross-sectional configuration of the display 3 according to the third embodiment of the present disclosure is shown. The display 3 includes a display panel 10, an optical sheet 16, and a light guide plate 17 accommodated in a case 40, and the display 3 differs from the displays of the first and second embodiments in that the case 40 is configured to include a front glass 41 (a front member). ), a rear panel 42 (rear member), and a decorative frame 43, and a front glass 41 is provided on the front surface of the display panel 10 with a sealing layer 44 therebetween. It should be noted that the front glass 41 (front member), the rear panel 42 (rear member), and the decoration frame 43 are adhered to each other by the adhesive portion 23 .

[0056] The front glass 41 is a plate-like member provided on the entire front surface of the display panel 10 with the sealing layer 44 therebetween as described above, and the front glass 41 is made of a high-transparency material such as glass, polycarbonate (PC) And the plastic construction of adding ABS resin to PC. The front glass 41 has a thickness of, for example, about 0.5 mm to about 3.5 mm inclusive, which protects the display area S2 of the display panel 10 and supports the display 3 together with the rear panel 42 to be described later.

[0057] The rear plate 42 is provided to cover the entire rear side of the display panel 10 as described above, and also supports the entire display 3, similarly to the second embodiment. The rear plate 52 is a rigid member made of, for example, glass or metal such as Al and Fe, and has a thickness of about 1.0 mm to about 3.0 mm (both inclusive). In addition, the front glass 41 and the rear panel 42 are adhered to each other by the adhesive portion 23 as described above, so that a material having the same or similar properties as the front glass 41 or the rear panel 42 is preferably used. Specifically, it is desirable to use glass in consideration of the required transparency of the front glass 41 , the required rigidity of the display support member, and the difference in expansion coefficient with respect to the display panel 10 . In addition, on the entire back surface of the rear plate 42, a light-shielding film 42A is provided to prevent external light from entering the display 3, similarly to the second embodiment.

[0058] The decorative frame 43 is provided so as to cover the side surface between the front and the back of the display 3 , and seals the adhesive portion 23 for connecting the front glass 41 and the rear panel 42 . As the material of the decorative frame 43, for example, the material of the rear cabinet 22 in the first embodiment, that is, metals such as Al and Fe can be used. It should be noted that the trim frame 43 may be a plate-like member, but as Figure 4 As shown in , the amount of the adhering portion 23 for adhering the front glass 41 and the rear plate 42 to each other can be reduced by providing the protruding portion 43A in the sealing direction of the adhering portion 23 . In addition, the positioning of the components of the display 3 (for example, see Figure 5 ) can be performed by appropriately adjusting the position where the protruding portion 43A is formed.

[0059] The sealing layer 44 is provided for sealing between the display panel 10 and the front glass 41, which may be constructed of, for example, a resin or the like having photohardening properties, thermosetting properties, moisture curing properties, oxygen curing properties Or hot melt properties, or any combination of these properties. It should be noted that the sealing layer 44 may be omitted, but by sealing the space between the display panel 10 and the front glass 41 with the sealing layer 44, the strength can be improved and the image quality can be improved. In addition, designability is also improved.

[0060]In the display 3 of this embodiment, materials with rigidity and the same or similar properties are used to form the front glass 41 and the rear panel 42 of the chassis 40 , and the front and rear surfaces of the display panel are covered by the front glass 41 and the rear panel 42 . This simplifies the rear members provided on the rear side of the display panel 10, such as the rear chassis and external members, etc., and thus the thickness of the display 3 can be reduced. In addition, since the front glass 41 and the rear panel 42 are adhered to each other by the adhesive portion 23, the frame area S1 can be reduced. In other words, the display 3 can be made thinner while making its frame narrower.

[0061] [4. Fourth Embodiment]

[0062] Figure 5 A cross-sectional configuration of the display 4 according to the fourth embodiment of the present disclosure is shown. In the display 4, the display panel 10 and the optical sheet 16 are accommodated in a case 50 using a front glass 51 (front member) provided on the front of the display panel 10 with a sealing layer 44 therebetween, a guide The light plate 52 (back surface member) and the decorative frame 53 are constructed. In the display 4 of the present embodiment, the light guide plate 52 is used as the rear member, which is different from the first to third embodiments. It should be understood that the front glass 51 (front member), the light guide plate 52 (rear member), and the decorative member 53 are adhered to each other by the adhesive portion 23 .

[0063] Similar to the third embodiment, the front glass 51 is provided on the front of the display panel 10 and is made of a highly transparent material such as glass, polycarbonate (PC), and plastic to which ABS resin is added to PC. The front glass 51 has a thickness of, for example, about 0.5 mm to about 3.5 mm inclusive, and protects the display area S2 of the display panel 10 and also supports the display 4 together with the light guide plate 52 to be described later.

[0064] The light guide plate 52 covers the entire rear surface of the display panel 10, and may be constructed using a material having the same or similar properties as the front glass 51, which is, for example, a member having rigidity and capable of supporting the entire display 4, as in the third embodiment. resemblance. Specifically, for example, glass or metals such as Al and Fe can be used, and the thickness is about 1.0 mm to about 3.0 mm (both inclusive). In addition, on the entire back surface of the light guide plate 52 , a light shielding film 52A is provided to prevent external light from entering the display 4 . This light-shielding film 52A is constructed of, for example, a resin film such as a black film into which a black colorant is mixed and which has an optical density of about 1 or more, similar to the second or third embodiment. Among them, the black resin film is preferably used because the light shielding film 52A can be easily manufactured at low cost.

[0065] The decorative frame 53 is provided to cover the side surface between the front and back of the display 4 and seals the adhesive portion 23 that connects the front glass 51 to the light guide plate 52, which is a front member, the light guide plate 52 is the rear member, similar to the third embodiment. As the material of the decorative frame 53, a material similar to that in the third embodiment may be employed.

[0066] In the display 4 of the present embodiment, the light guide plate 52 constructed of a material having transparency and rigidity is provided as the back plate covering the back of the display panel 10, so in addition to achieving the effects similar to those of the third embodiment, it is possible to further Decrease the thickness of the display 4 . In addition, the number of components of the display 4 can be reduced to further reduce the cost.

[0067] The present technology has been described using the first to fourth embodiments, but the present technology is not limited to these embodiments and various modifications can be made. For example, a liquid crystal display is used as an example of the display 1 in the above-described embodiments, but the chassis 20 can be applied to a plasma display, an organic electroluminescence display, and the like.

[0068] In addition, each member and thickness in the embodiment is described as an example. Not all configurations must be provided, or other components may also be provided. For example, as a system for radiating heat generated by the light source 18, a heat sink may be adhered to part or all of the back of the display, eg, to the lower end where the light source is located. For the heat sink, it is desirable to use a metal having excellent thermal conductivity, for example, a material formed by molding a block made of Al or the like can be used. In addition, in the display described in each embodiment, the polarizing plate is provided on the surface of the display panel, but is not limited to this example, but may be provided on the surface of the front glass, for example.

[0069] At least the following configurations can be realized from the above example embodiments and modifications of the present disclosure.

[0070] (1) A display comprising:

[0071] display panel;

[0072] a front surface member provided on the front surface of the display panel, and the front surface member covers the peripheral portion of the display panel, or the peripheral portion and other portions;

[0073] a back surface member disposed on the back surface of the display panel, the back surface member covering the back surface of the display panel, or the back surface and other parts; and

[0074] The back surface member and the front surface member are adhered to each other's adhesive portion, the adhesive portion covering the outer peripheral portion of the display panel.

[0075] (2) The display according to (1), wherein the front member is a frame provided at an outer edge portion of the display panel.

[0076] (3) The display according to (1) or (2), wherein the front surface member is a transparent plate covering the front surface of the display panel.

[0077] (4) The display according to any one of (1) to (3), wherein the front surface member and the rear surface member are made of the same material.

[0078] (5) The display according to any one of (1) to (4), wherein each of the front surface member and the rear surface member is made of a resin material.

[0079] (6) The display according to any one of (1) to (4), wherein each of the front surface member and the rear surface member is made of glass.

[0080] (7) The display according to any one of (1) to (6), further comprising:

[0081] a backlight unit including a light source, an optical sheet, and a light guide plate, the backlight unit being disposed between the display panel and the rear member, wherein

[0082] The light guide plate serves as the back member.