JP6184074B2 - Liquid crystal display - Google Patents

Description

  The present invention relates to a liquid crystal display device having a holding structure for a liquid crystal display panel, in which the deterioration of display quality due to warpage of the liquid crystal display panel is alleviated.

  The liquid crystal display device includes a liquid crystal display panel including a pair of substrates and a polarizing plate provided so as to sandwich the pair of substrates, a front frame formed of metal, etc., a light guide plate, an optical sheet, a middle frame, and the like. It is comprised from the planar light source device comprised. A conventional liquid crystal display device has a structure in which a middle frame, which is a constituent member of a planar light source device, is formed in a substantially flat shape, and a liquid crystal display panel is sandwiched between the middle frame and a front frame (for example, Patent Document 1, Patent Document 1). 2).

  Further, recent liquid crystal display devices are used in a wide range of ambient temperatures depending on applications, and good display quality is required at any ambient temperature, and the liquid crystal display devices themselves tend to be lighter and thinner.

JP 2010-85638 A JP 2005-91668 A

  However, a liquid crystal display panel composed of a plurality of members may be warped in both irregularities with respect to the display surface depending on the ambient temperature. In the structure of the conventional liquid crystal display device, the liquid crystal display panel is warped greatly. The liquid crystal display panel interferes with the front frame and the middle frame, resulting in a problem that display quality is deteriorated.

  Patent Document 1 discloses a middle frame structure in which protrusions are provided at positions corresponding to the four corners of the liquid crystal display panel, and Patent Document 2 discloses a structure in which elastic spacers are provided on the front frame and the middle frame. . However, even if either structure has the effect of alleviating the deterioration of display quality with respect to the direction of warping of the liquid crystal display panel in one direction, it can reduce the deterioration of display quality against warping in the opposite direction. I can't.

  Accordingly, an object of the present invention is to provide a liquid crystal display device having a good display quality and a thickness equivalent to the conventional one even when the liquid crystal display panel is warped or warped due to the ambient temperature. .

The liquid crystal display device according to the present invention includes a liquid crystal display panel, a first frame that holds the liquid crystal display panel from the front side, a holding surface that holds the liquid crystal display panel from the back side and that holds the liquid crystal display panel. A second frame having a plurality of panel receiving portions for receiving a part of the back surface of the liquid crystal display panel, and when the liquid crystal display panel has a concave warp or a convex warp on the holding surface of the second frame, The abutting portion that abuts on the liquid crystal display panel is formed at a height lower than the plurality of panel receiving portions, and the second frame is shorter than the region on the long side of the second frame at the abutting portion. The side region is formed at a lower height .

  According to the present invention, in the liquid crystal display device, the contact portion that contacts the liquid crystal display panel when the liquid crystal display panel is warped or warped on the holding surface of the second frame is more than the panel receiving portion. Therefore, the interference between the liquid crystal display panel and the first frame and the second frame is reduced even when the liquid crystal display panel is warped, and the liquid crystal display from the first frame and the second frame is reduced. Stress applied to the panel is reduced. Thereby, the deterioration of display quality can be alleviated.

In addition, since it is possible to alleviate the deterioration in display quality by simply forming the contact portion at a lower height than the plurality of panel receiving portions in the second frame, a liquid crystal display device having a thickness equivalent to the conventional one can be obtained. realizable. In addition, in the contact portion, the region on the short side of the second frame is formed at a lower height than the region on the long side of the second frame, so that the amount of contact of the convex warped liquid crystal display panel is absorbed. can do.

(A) It is sectional drawing outside the display area of the liquid crystal display device which concerns on Embodiment 1. FIG. (B) It is sectional drawing outside the display area of a liquid crystal display device in the state in which the liquid crystal display panel curved. (C) It is sectional drawing outside the display area of a liquid crystal display device in the state where the liquid crystal display panel warped concavely. 3 is a plan view of a middle frame of the liquid crystal display device according to Embodiment 1. FIG. (A) It is sectional drawing outside the display area of the liquid crystal display device which is another example of the liquid crystal display device which concerns on Embodiment 1. FIG. (B) It is sectional drawing outside the display area of a liquid crystal display device in the state in which the liquid crystal display panel curved. (C) It is sectional drawing outside the display area of a liquid crystal display device in the state where the liquid crystal display panel warped concavely. 7 is a plan view of a liquid crystal display panel and a middle frame of a liquid crystal display device according to a modification of the first embodiment. FIG. 6 is a plan view of a middle frame of a liquid crystal display device according to a modification of the first embodiment. FIG. FIG. 11 is a plan view of a liquid crystal display panel and a middle frame of a liquid crystal display device that is another example of the liquid crystal display device according to the modification of the first embodiment. 6 is a cross-sectional view of a main part outside a display region of a liquid crystal display device according to Embodiment 2. FIG. FIG. 10 is a cross-sectional view of a main part outside a display region of a liquid crystal display device which is another example of the liquid crystal display device according to Embodiment 2. FIG. 10 is a cross-sectional view of a main part outside a display region of a liquid crystal display device which is another example of the liquid crystal display device according to Embodiment 2. FIG. 10 is a cross-sectional view of a main part outside a display region of a liquid crystal display device which is another example of the liquid crystal display device according to Embodiment 2. FIG. 6 is a cross-sectional view of a main part outside a display region of a liquid crystal display device according to a third embodiment. FIG. 10 is a cross-sectional view of a main part outside a display region of a liquid crystal display device which is another example of the liquid crystal display device according to Embodiment 3. (A) It is sectional drawing outside the display area of the conventional liquid crystal display device. (B) It is sectional drawing outside the display area of a liquid crystal display device in the state in which the liquid crystal display panel curved. (C) It is sectional drawing outside the display area of a liquid crystal display device in the state where the liquid crystal display panel warped concavely.

<Embodiment 1>
Embodiment 1 of the present invention will be described below with reference to the drawings. 1A is a cross-sectional view outside the display area of the liquid crystal display device according to Embodiment 1 of the present invention, and FIG. 1B shows the liquid crystal display device in a state in which the liquid crystal display panel is warped. FIG. 1C is a cross-sectional view outside the display region, and FIG. 1C is a cross-sectional view outside the display region of the liquid crystal display device in a state where the liquid crystal display panel is warped.

  As shown in FIGS. 1A to 1C, the liquid crystal display device includes a liquid crystal display panel 1, a front frame 2 (first frame), and a middle frame 3 (second frame). The liquid crystal display panel 1 includes a pair of color filter substrates 13 (see FIG. 4) and a TFT array substrate 14 (see FIG. 4) and a polarizing plate (not shown) provided so as to sandwich the pair of substrates 13 and 14. For example, it is formed in a rectangular shape in plan view.

  The front frame 2 is formed in a rectangular shape in plan view from a metal material or a resin material. The front frame 2 includes a flat plate portion 2a and a frame-shaped side plate portion 2b, and has a concave space that opens to the liquid crystal display panel 1 side. The middle frame 3 is formed in a rectangular shape in plan view with a metal material or a resin material. The middle frame 3 includes a flat plate portion 3a and a frame-shaped side plate portion 3b, and has a concave space that opens to the liquid crystal display panel 1 side.

  The liquid crystal display device has a structure in which a gap of a predetermined distance is provided between the back surface of the flat plate portion 2 a of the front frame 2 and the front surface of the liquid crystal display panel 1 and the liquid crystal display panel 1 is sandwiched between the front frame 2 and the middle frame 3. It has become.

  The liquid crystal display panel 1 is disposed on a holding surface (front surface) that holds the liquid crystal display panel 1 in the flat plate portion 3a of the middle frame 3, and the inner peripheral portion of the holding surface (back surface) of the flat plate portion 2a of the front frame 2 is the middle. By being fixed to the front end of the side plate portion 3b of the frame 3, the middle frame 3 holds the liquid crystal display panel 1 from the back side, and the front frame 2 holds the liquid crystal display panel 1 from the front side.

  A plurality of (for example, four) panel receiving portions 4 for receiving a part of the back surface of the liquid crystal display panel 1 are formed on the holding surface of the flat plate portion 3a of the middle frame 3. The plurality of panel receiving portions 4 are formed integrally with the middle frame 3 in a protruding shape, and the tip portions thereof are formed in a shape including a curved surface.

  Next, a plurality of panel receiving portions 4 formed on the middle frame 3 will be described with reference to FIG. FIG. 2 is a plan view of the middle frame 3. In FIG. 2, the side plate portion 3b of the middle frame 3 is omitted. The plurality of panel receiving portions 4 are arranged in the middle corresponding to each gravity center position G when the respective gravity center positions G of the respective rectangles obtained by dividing the liquid crystal display panel 1 into four rectangles are not included in the display area 10 of the liquid crystal display panel 1. It is formed in a peripheral region at a position on the flat plate portion 3 a of the frame 3. Further, when each barycentric position G is included in the display area 10 of the liquid crystal display panel 1, the plurality of panel receiving portions 4 are arranged on a vertical line extending from each barycentric position G to the side of the liquid crystal display panel 1 that is close (that is, FIG. 2 on a quadrant line indicated by a one-dot chain line 2) in the peripheral region 11 at a position on the middle frame 3 corresponding to the outer peripheral portion of the display region 10.

  Here, FIG. 2 is a diagram illustrating a case where each gravity center position G is included in the display area 10 of the liquid crystal display panel 1. For this reason, each panel receiving portion 4 is located at a position on the middle frame 3 corresponding to the outer peripheral portion of the display area 10 of the liquid crystal display panel 1 on a vertical line extending from each gravity center position G to the adjacent side of the liquid crystal display panel 1. Each is formed in the peripheral region 11. In addition, although description is omitted about the case where each gravity center position G is not included in the display area 10 of the liquid crystal display panel 1, it is the same as the case where each gravity center position G described below is included in the display area 10 of the liquid crystal display panel 1. The effect of.

  Since the plurality of panel receiving portions 4 are formed at the above positions, as shown in FIGS. 1B and 1C, in the flat plate portion 3a of the middle frame 3, the liquid crystal display panel 1 is warped and warped. The mold frame portion 3c (more specifically, the four-side peripheral region including the peripheral regions of the four corners of the holding surface of the flat plate portion 3a) is a contact portion that contacts the liquid crystal display panel 1 when the occurrence of The height is lower than the panel receiving portion 4. Here, in the case of concave warpage, the peripheral areas of the four corners on the holding surface of the flat plate portion 3a are in contact with the liquid crystal display panel 1. Are in contact with the liquid crystal display panel 1.

  Next, the liquid crystal display device according to the first embodiment will be described in comparison with a conventional liquid crystal display device in which the panel receiving portion 4 is not provided. FIG. 13A is a cross-sectional view outside the display area of the conventional liquid crystal display device, and FIG. 13B is a view outside the display area of the conventional liquid crystal display device in a state where the liquid crystal display panel 1 is warped. FIG. 13C is a cross-sectional view outside the display region of the conventional liquid crystal display device in a state in which the liquid crystal display panel 1 is warped. In the conventional liquid crystal display device, the same components as those described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  First, a conventional liquid crystal display device will be described. In the conventional liquid crystal display device, the middle frame 50 is formed in a rectangular shape in plan view with a metal material or a resin material, and is composed of a flat plate portion 50a and a frame-shaped side plate portion 50b. The holding surface of the flat plate portion 50a of the middle frame 50 is formed in a substantially flat shape, and the conventional liquid crystal display device has a predetermined distance between the back surface of the flat plate portion 2a of the front frame 2 and the front surface of the liquid crystal display panel 1. In addition, the liquid crystal display panel 1 is sandwiched between the front frame 2 and the middle frame 50.

  The members constituting the liquid crystal display device are slightly warped and deformed by individual members, and it is inevitable that the liquid crystal display panel 1 interferes with the front frame 2 and the middle frame 50 in a part by modularization. Therefore, by providing the gap of the predetermined distance, the display unevenness due to the interference between the liquid crystal display panel 1, the front frame 2, and the middle frame 50 at normal temperature is reduced. When the liquid crystal display device is used in a wide range of ambient temperatures, there may be a large warp that the display quality deteriorates (display unevenness occurs) when the liquid crystal display panel 1 has a predetermined distance.

  13 (b) and 13 (c), the broken line portion of the liquid crystal display panel 1 causes a large warp in the liquid crystal display panel 1, and the liquid crystal display panel 1 having a large convex warp on the display surface (front surface) side, and a large concave warp. This shows that the liquid crystal display panel 1 interferes with the front frame 2 and the middle frame 50. When the liquid crystal display panel 1 is stressed by the amount of warping that interferes from the front frame 2 and the middle frame 50, the display quality deteriorates (that is, display unevenness occurs).

  On the other hand, as shown in FIGS. 1A to 1C, in the liquid crystal display device according to the first embodiment, the structure of the middle frame 3 includes a liquid crystal display panel 1 having a convex warp and a liquid crystal display having a concave warp. By lowering the mold frame portion 3c with which the panel 1 mainly comes into contact with the panel receiving portion 4, the interference between the front frame 2 and the middle frame 3 is reduced even when both the concave and convex portions of the liquid crystal display panel 1 are warped. The stress applied to the liquid crystal display panel 1 from the front frame 2 and the middle frame 3 is reduced. Thereby, the deterioration of display quality can be alleviated. Further, in the state of the liquid crystal display panel 1 that is not warped, the gap between the liquid crystal display panel 1 and the front frame 2 is the same as in the case of the conventional liquid crystal display device. With respect to the intrusion of dust, the same performance as the conventional structure can be exhibited.

  In addition, as shown in FIG. 2, in the mold frame portion 3c, the short side region 12 is formed to have a lower height than the long side region by increasing the digging depth. In this way, the relative height of the mold frame portion 3c is formed so that the short side region 12 is lower than the long side region. The amount of contact can be absorbed. Further, when the middle frame 3 is formed of a resin material, in the middle frame 3, the thickness of the long side area that requires strength relative to the short side area 12 can be increased. The absorption of the contact amount of the display panel 1 and the strength surface of the middle frame 3 can be made compatible.

  As described above, in the liquid crystal display device according to Embodiment 1, in the middle frame 3, when the liquid crystal display panel 1 undergoes a concave warp or a convex warp, the mold frame portion 3c that comes into contact with the liquid crystal display panel 1 includes a plurality of mold frame portions 3c. Therefore, the interference between the liquid crystal display panel 1 and the front frame 2 and the middle frame 3 is reduced even when the liquid crystal display panel 1 is warped. 2 and the stress applied to the liquid crystal display panel 1 from the middle frame 3 is reduced. Thereby, the deterioration of display quality can be alleviated.

  In addition, since the mold frame portion 3c in the middle frame 3 is formed at a height lower than that of the plurality of panel receiving portions 4, it is possible to alleviate the deterioration of display quality. A device can be realized.

  Further, the plurality of panel receiving portions 4 correspond to the respective gravity center positions G when the respective gravity center positions G obtained by dividing the liquid crystal display panel 1 into four rectangles are not included in the display area 10 of the liquid crystal display panel 1. In the case where each center of gravity position G is included in the display region 10 and is formed in the peripheral region of the position on the middle frame 3, the display region 10 on the vertical line extending from each center of gravity position G to the adjacent side of the liquid crystal display panel 1. It was formed in the peripheral region 11 at a position on the middle frame 3 corresponding to the outer peripheral portion.

  Therefore, it is possible to maximize the contact margin (a reduction amount of interference) and reduce the display quality while reducing the interference with the front frame 2 and the middle frame 3 with respect to the warpage of both the irregularities of the liquid crystal display panel 1. Can be more relaxed.

  Further, in the mold frame portion 3c, since the region 12 on the short side of the middle frame 3 is formed at a lower height than the region on the long side of the middle frame 3, the abutment of the liquid crystal display panel 1 that is convexly warped is formed. The amount can be absorbed.

  Moreover, since the front-end | tip part of the panel receiving part 4 is a shape containing a curved surface, ie, a shape which has a curved surface in the contact point with the liquid crystal display panel 1 in the panel receiving part 4, when the liquid crystal display panel 1 warps In addition, the stress concentration of the liquid crystal display panel 1 at the contact point can be relaxed.

  Further, since the panel receiving portion 4 is formed integrally with the middle frame 3 and further there is no need to provide an elastic spacer or the like, the assembly process is complicated and the product resolvability is reduced without increasing the number of parts. Can be suppressed.

  The liquid crystal display panel 1 has different warping directions and warping amounts depending on the combination of the thicknesses of the substrates 13 and 14 that are members constituting the liquid crystal display panel 1 and the thicknesses of the polarizing plate on the display surface side and the non-display surface side. Further, the amount of warpage of the unevenness at the minimum temperature and the maximum temperature may differ depending on the operating temperature range of the liquid crystal display device. For example, FIGS. 3A to 3C are cross-sectional views outside the display area of the liquid crystal display device when the amount of warpage of the concave warp is larger than the convex warp in the liquid crystal display panel 1. As shown in FIGS. 3A to 3C, when the amount of warpage of the concave warp is larger than the convex warp in the liquid crystal display panel 1, the panel receiving portion 4 is positioned at the center of gravity of each rectangle divided into four rectangles. By being formed closer to the outer side in the longitudinal direction of the middle frame 3 than G, the contact margin (interference reduction amount) can be maximized.

<Modification>
Next, a liquid crystal display device according to a modification of the first embodiment will be described with reference to FIGS. 4 is a plan view of the liquid crystal display panel 1 and the middle frame 3 of the liquid crystal display device according to the modification of the first embodiment, FIG. 5 is a plan view of the middle frame 3, and FIG. 2 is a plan view of a liquid crystal display panel 1 and a middle frame 3 of a liquid crystal display device as an example. FIG. 4 to 6, the side plate portion 3b of the middle frame 3 is omitted.

  In the first embodiment, FIG. 2 is a diagram in which the display area 10 is arranged considerably inside the outer shape of the liquid crystal display panel 1 and the frame area (non-display area) is widely emphasized. This is because the panel receiving portion is positioned relatively close to the position on the holding surface of the middle frame 3 corresponding to the center of gravity position G, which is an ideal position for disposing the panel receiving portion 4 with respect to the warp of the liquid crystal display panel 1. This is for explaining an example in which 4 is arranged.

  In the actual liquid crystal display panel 1, as shown in FIGS. 4 and 6, the display area 10 is provided in the same range as the outer shape of the liquid crystal display panel 1 except for the side where the input terminal 15 is provided. 4 corresponds to the case where the input terminals 15 are provided on two sides, and FIG. 6 corresponds to the case where the input terminals 15 are provided only on one side which is often used in a small liquid crystal display panel. It is a figure to do. Further, as illustrated, on the side where the input terminal 15 is provided, the TFT array substrate 14 provided with the input terminal 15 protrudes from the outer shape of the color filter substrate 13.

  As described above, in the liquid crystal display panel 1 of the liquid crystal display device according to the modification of the first embodiment, the center of gravity of each rectangle divided into four rectangles which are ideal positions for disposing the panel receiving portion 4 It can be seen that G is located quite inside in the display area 10. Further, as shown in FIG. 5, in the middle frame 3, the portion corresponding to the display area 10 is provided with an opening 16 for receiving backlight light. It cannot be provided at a proper position.

  However, even in such a case, as shown in FIGS. 4 and 6, as shown in FIGS. 4 and 6, the middle frame 3 corresponding to the outer peripheral portion of the display area 10 on the vertical line extending from each gravity center position G to the adjacent side of the liquid crystal display panel 1. By forming the panel receiving part 4 in the peripheral area of the upper position, the panel receiving part 4 can be arranged at a position optimized according to the arrangement of the display area 10 in the liquid crystal display panel 1.

  As a result, the contact margin (reduction amount of interference) can be maximized while reducing the interference with the front frame 2 and the middle frame 3 with respect to the warpage of both the projections and depressions of the liquid crystal display panel 1, and the display quality can be improved. The effect similar to the effect obtained in Embodiment 1 that the reduction can be further alleviated can be obtained.

  Here, as the outer peripheral portion of the display region 10 on the vertical line extending from the center of gravity position G where the panel receiving portion 4 is formed to the side of the liquid crystal display panel 1, the liquid crystal display panel other than the positions shown in FIGS. You can also select a position with a perpendicular line in the longitudinal direction (direction toward the short side) of the external shape, but since the absolute value of displacement due to warpage is larger in the longitudinal direction, make a perpendicular line in the direction toward the long side. The extended position is desirable in that the above effect can be maximized.

  Note that the short-side region 12 (the range where the digging depth is large) in the mold frame portion 3c is not significantly affected by the arrangement of the display region 10 as can be seen from FIGS. 4 to 6. The region 12 shown in FIG. 2 can be provided at a position that does not change so much. Therefore, in the liquid crystal display device according to the modification of the first embodiment, the same effect as that obtained by the liquid crystal display device according to the first embodiment can be obtained.

<Embodiment 2>
Next, a liquid crystal display device according to Embodiment 2 will be described. FIG. 7 is a cross-sectional view of a main part outside the display area of the liquid crystal display device according to the second embodiment, and FIGS. 8 to 10 are liquid crystal display devices as other examples of the liquid crystal display device according to the second embodiment. It is principal part sectional drawing outside the display area of. In the second embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the first embodiment, the panel receiving portion 4 is formed in a protruding shape integrally with the middle frame 3, but in the second embodiment, the panel receiving portion is formed in various shapes. The panel receiving portion 20 shown in FIG. 7 is formed in a substantially hemispherical shape (a shape including a curved surface at the tip) by an elastic member that is a separate member from the middle frame 3. As the elastic member, for example, a soft material having a small elastic coefficient such as rubber is used. Since the panel receiving portion 20 is formed of an elastic member, the stress concentration of the liquid crystal display panel 1 at the contact portion with the liquid crystal display panel 1 can be relaxed, and deterioration of display quality can be prevented.

  The panel receiving portion 21 shown in FIG. 8 is formed in a shape having a flat end at the end and an R at the corner by an elastic member. Moreover, the panel receiving part 22 shown in FIG. 9 is formed in the shape which the front-end | tip is formed in a flat surface with a metal material or a resin material, and does not have R, for example. Since the front ends of the panel receiving portions 21 and 22 are formed on a flat surface, the stress concentration of the liquid crystal display panel 1 at the contact portion is maintained by holding the liquid crystal display panel 1 on a flat surface having a relatively large area even when the liquid crystal display panel 1 is not warped. Can be relaxed.

  The panel receiving part 23 shown in FIG. 10 is formed by a spring member (elastic member). Since the panel receiving portion 23 is formed of a spring member, the stress concentration of the liquid crystal display panel 1 at the contact portion can be alleviated, and deterioration in display quality can be prevented.

<Embodiment 3>
Next, a liquid crystal display device according to Embodiment 3 will be described. FIG. 11 is a cross-sectional view of the main part outside the display area of the liquid crystal display device according to the third embodiment, and FIG. 12 is a display area of a liquid crystal display device which is another example of the liquid crystal display device according to the third embodiment. It is an outer principal part sectional drawing. Note that in the third embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the liquid crystal display device according to Embodiment 3, in the liquid crystal display panels 30 and 33, buffer members are arranged at positions facing the plurality of panel receiving portions 4. As shown in FIG. 11, the liquid crystal display panel 30 includes a color filter substrate 13, a TFT array substrate 14, a black matrix 29, a spacer 31, and a liquid crystal sealing material (seal material) 32. The black matrix 29 is a light shielding layer that is provided mainly on the surface of the frame region of the color filter substrate 13 and shields unnecessary light. The spacer 31 is mixed in the resin of the liquid crystal sealing material (sealing material) 32, and the distance between the substrates is held by a spherical or cylindrical rod-shaped member having a predetermined diameter.

  In the liquid crystal display panel 30, a black matrix 29, a spacer 31, and a liquid crystal sealing material 32 are disposed between a pair of opposing substrates 13 and 14. The spacer 31 and the liquid crystal sealing material 32 are disposed at positions facing the plurality of panel receiving portions 4 in the liquid crystal display panel 30. Since the liquid crystal sealing material 32 mixed with the spacers 31 is disposed at a position facing the plurality of panel receiving portions 4, the stress concentration of the liquid crystal display panel 30 at the contact portion with the plurality of panel receiving portions 4 can be reduced. Can do. In particular, when the material of the spacer 31 and the liquid crystal sealing material 32 is made of an elastically deformable resin, it can function effectively as a buffer member. Further, the black matrix 29 provided between the substrates 13 and 14 is also made of an elastically deformable resin mixed with a black pigment, so that it effectively functions as a buffer member and improves the stress concentration mitigating action. Since it can do, it is preferable.

  As shown in FIG. 12, the liquid crystal display panel 33 includes a color filter substrate 13, a TFT array substrate 14, a black matrix 29, a spacer 31, a liquid crystal sealing material 32, and a columnar member 34. In the liquid crystal display panel 33, a black matrix 29, a spacer 31, and a liquid crystal sealing material 32 are disposed between a pair of opposing substrates 13 and 14, between the opposing substrates 13 and 14, and A plurality of columnar members 34, which are made of an elastically deformable resin and are buffer members, are arranged at a certain interval with a spacer 31 at a position facing the panel receiving portion 4.

  In the liquid crystal display panels 30 and 33, since the buffer member is arranged at a position facing the plurality of panel receiving portions 4, the stress concentration at the contact point with the panel receiving portion 4 can be alleviated, and the display quality due to the stress concentration can be reduced. Decline can be prevented.

  Further, even if the structures shown in FIGS. 11 and 12 are provided in one liquid crystal display device, the same effect as described above can be obtained.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  1, 30, 33 Liquid crystal display panel, 2 Front frame, 3 Middle frame, 3c Mold frame part, 4, 20, 21, 22, 23 Panel receiving part, 29 Black matrix, 31 Spacer, 32 Liquid crystal sealing material, 34 Column shape Element.

Claims (8)

A liquid crystal display panel;
A first frame for holding the liquid crystal display panel from the front side;
A second frame that holds the liquid crystal display panel from the back surface side, and has a plurality of panel receiving portions that receive a part of the back surface of the liquid crystal display panel on a holding surface that performs the holding;
In the holding surface of the second frame, a contact portion that contacts the liquid crystal display panel when a concave warp or a convex warp occurs in the liquid crystal display panel is formed at a lower height than the plurality of panel receiving portions. And
The liquid crystal display device, wherein, in the contact portion, the region on the short side of the second frame is formed at a lower height than the region on the long side of the second frame. A liquid crystal display panel;
A first frame for holding the liquid crystal display panel from the front side;
A second frame that holds the liquid crystal display panel from the back surface side, and has a plurality of panel receiving portions that receive a part of the back surface of the liquid crystal display panel on a holding surface that performs the holding;
In the holding surface of the second frame, a contact portion that contacts the liquid crystal display panel when a concave warp or a convex warp occurs in the liquid crystal display panel is formed at a lower height than the plurality of panel receiving portions. And
The liquid crystal display device further comprising a dug portion formed at a low height from the holding surface at the contact portion.   The liquid crystal display device according to claim 1, wherein a gap of a predetermined distance is provided between a back surface of the first frame and a front surface of the liquid crystal display panel.   The plurality of panel receiving portions may include the second position corresponding to each centroid position when each centroid position of each rectangle obtained by dividing the liquid crystal display panel into four rectangles is not included in the display area of the liquid crystal display panel. The display area on a vertical line that is formed in a peripheral area of a position on the holding surface of a frame and extends to the side of the liquid crystal display panel that is close to each gravity position when each gravity center position is included in the display area The liquid crystal display device according to claim 1, wherein the liquid crystal display device is formed in a peripheral region at a position on the holding surface of the second frame corresponding to an outer peripheral portion of the second frame. It said plurality of panel receivers of the tip portion was formed in a shape including a curved surface, a liquid crystal display device according to any one of claims 1-4. Tips of said plurality of panel receivers are formed on the flat surface, the liquid crystal display device according to any one of claims 1-4. It said plurality of panel receivers are constituted by an elastic member, a liquid crystal display device according to any one of claims 1-6. In the liquid crystal display panel, the plurality of panel receiving portion and the buffer member to the opposite position is located, the liquid crystal display device according to any one of claims 1-7.

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