JP7079112B2 - Display device and television receiver - Google Patents

Description

本発明は、表示装置及びテレビジョン受像機に関する。 The present invention relates to a display device and a television receiver.

近年、画像を表示する表示装置として、液晶表示装置が広く普及している。液晶表示装置は、画像が表示される液晶表示パネルと、光を発する光源と、該光源からの光を拡散させて前記液晶表示パネルに照射する導光板とを有する。 In recent years, a liquid crystal display device has become widespread as a display device for displaying an image. The liquid crystal display device includes a liquid crystal display panel on which an image is displayed, a light source that emits light, and a light guide plate that diffuses light from the light source and irradiates the liquid crystal display panel.

前記液晶表示装置においては、前記導光板を固定する必要があるが、前記光源からの熱に起因して前記導光板が膨張するので、前記導光板の固定の際には撓みが生じないように工夫が要求される。 In the liquid crystal display device, it is necessary to fix the light guide plate, but since the light guide plate expands due to heat from the light source, bending does not occur when the light guide plate is fixed. Ingenuity is required.

例えば、特許文献１の表示装置においては、表示パネルと、導光板と、前記導光板の一側面と平行な板状部を有する放熱体とを備え、前記放熱体は、前記板状部から離れた位置に、前記導光板の前記一側面と略平行をなして突設された２つの位置決め突起を有し、前記導光板は前記一側面の両端部に切り欠きが形成され、前記位置決め突起の夫々が前記切り欠きと係合することによって前記導光板を保持することについて開示されている。 For example, the display device of Patent Document 1 includes a display panel, a light guide plate, and a radiator having a plate-shaped portion parallel to one side surface of the light guide plate, and the radiator is separated from the plate-shaped portion. The light guide plate has two positioning protrusions projecting substantially parallel to the one side surface of the light guide plate, and the light guide plate has notches formed at both ends of the one side surface of the light guide plate. It is disclosed that each holds the light guide plate by engaging with the notch.

国際公開第２０１５／１８６６３８号International Publication No. 2015/186638

しかし、上述した特許文献１の表示装置においては、前記放熱板の位置決め突起に前記導光板の切り欠きが引っかかっているのみで確実な保持はされておらず、前記位置決め突起の熱膨張率に比べて前記導光板の熱膨張率が大きいことから、熱膨張のときにおいては、前記位置決め突起及び前記切り欠きの間隔がより大きくなる。従って、外部から振動、衝撃等が表示装置に与えられた場合は前記切り欠き（導光板）が前記位置決め突起から外れるという問題がある。 However, in the above-mentioned display device of Patent Document 1, the notch of the light guide plate is only caught in the positioning protrusion of the heat radiating plate and is not reliably held, and is compared with the coefficient of thermal expansion of the positioning protrusion. Since the coefficient of thermal expansion of the light guide plate is large, the distance between the positioning protrusion and the notch becomes larger during thermal expansion. Therefore, when vibration, impact, or the like is applied to the display device from the outside, there is a problem that the notch (light guide plate) comes off from the positioning projection.

本発明は、斯かる事情に鑑みてなされたものであり、その目的とするところは、導光板に熱膨張・収縮が生じた場合においても、確実に前記導光板を保持できる表示装置及びテレビジョン受像機を提供することにある。 The present invention has been made in view of such circumstances, and an object of the present invention is a display device and a television capable of reliably holding the light guide plate even when the light guide plate undergoes thermal expansion or contraction. It is to provide a receiver.

本発明に係る表示装置は、矩形の導光板を備える表示装置において、前記導光板と同一又は類似する膨張率を有し、前記導光板の一辺に沿って設けられ、前記導光板を保持する保持部材を備えることを特徴とする。 The display device according to the present invention is a display device provided with a rectangular light guide plate, which has the same or similar expansion coefficient as the light guide plate, is provided along one side of the light guide plate, and holds the light guide plate. It is characterized by having a member.

本発明にあっては、前記導光板を保持する、前記保持部材が前記導光板の一辺に沿って設けられており、前記導光板と同一又は類似する膨張率を有する。従って、前記導光板の熱膨張・収縮の際、前記保持部材も前記導光板と同程度の熱膨張・収縮を行い、前記導光板の保持状態を維持する。 In the present invention, the holding member for holding the light guide plate is provided along one side of the light guide plate, and has the same or similar expansion coefficient as the light guide plate. Therefore, when the light guide plate is thermally expanded and contracted, the holding member also undergoes thermal expansion and contraction to the same extent as the light guide plate, and the holding state of the light guide plate is maintained.

本発明によれば、前記導光板に熱膨張・収縮が生じた場合においても、確実に前記導光板を保持できる表示装置及びテレビジョン受像機を提供できる。 According to the present invention, it is possible to provide a display device and a television receiver capable of reliably holding the light guide plate even when the light guide plate is thermally expanded or contracted.

本実施の形態に係るテレビジョン受像機の外観を示す斜視図である。It is a perspective view which shows the appearance of the television receiver which concerns on this embodiment. 本実施の形態に係るテレビジョン受像機の主要部の分解斜視図である。It is an exploded perspective view of the main part of the television receiver which concerns on this embodiment. 本実施の形態に係るテレビジョン受像機において保持部材が導光板を保持する状態を示す図である。It is a figure which shows the state which the holding member holds a light guide plate in the television receiver which concerns on this embodiment. 本実施の形態に係るテレビジョン受像機において放熱板に保持部材を固定した状態を示す図である。It is a figure which shows the state which the holding member is fixed to the heat radiating plate in the television receiver which concerns on this embodiment. 図３の破線の円部分を拡大した拡大図である。It is an enlarged view which enlarged the circle part of the broken line of FIG. 図３に示す導光板及び保持部材の図面視右側を拡大した図である。It is an enlarged view on the right side of the drawing of the light guide plate and the holding member shown in FIG. 本実施の形態に係るテレビジョン受像機において保持部材が導光板を保持する状態を導光板の前側から示す部分的正面図である。It is a partial front view which shows the state which the holding member holds a light guide plate in the television receiver which concerns on this embodiment from the front side of a light guide plate. 図４に示す放熱板及び保持部材の図面視右側を拡大した図である。It is an enlarged view on the right side of the drawing of the heat sink and the holding member shown in FIG. 本実施の形態に係るテレビジョン受像機において保持部材が放熱板に取り付けられた状態を放熱板の後側から示す部分的背面図である。It is a partial rear view which shows the state which the holding member was attached to the heat sink in the television receiver which concerns on this embodiment from the rear side of a heat sink. 図８の破線の円部分を拡大して表示する斜視図である。It is a perspective view which enlarges and displays the circle part of the broken line of FIG. 図４のＡ‐Ａ線による断面図である。4 is a cross-sectional view taken along the line AA of FIG. 図８のＢ‐Ｂ線による断面図である。FIG. 8 is a cross-sectional view taken along the line BB of FIG.

以下に、本実施の形態に係る表示装置を、いわゆるテレビジョン受像機に適用した場合を例として、図面に基づいて詳述する。
図１は、本実施の形態に係るテレビジョン受像機の外観を示す斜視図である。図１中、符号１は本実施の形態に係るテレビジョン受像機を示す。 Hereinafter, the display device according to the present embodiment will be described in detail with reference to the drawings, taking as an example the case where the display device is applied to a so-called television receiver.
FIG. 1 is a perspective view showing the appearance of the television receiver according to the present embodiment. In FIG. 1, reference numeral 1 indicates a television receiver according to the present embodiment.

テレビジョン受像機１はフロントフレーム１１、液晶表示パネル１２、チューナ部２１（受信部）、スタンド３、スピーカユニット４を含む。フロントフレーム１１は矩形枠状をなし、液晶表示パネル１２の周縁を覆っている。液晶表示パネル１２は矩形板状をなし、映像を表示する。スタンド３は、テレビジョン受像機１をテーブル等の平面に立てて載置するためのものである。スピーカユニット４は、液晶表示パネル１２の一の長辺に沿って設けられており、長手方向の寸法がフロントフレーム１１とほぼ同一で、略直方体状をなしている。また、チューナ部２１はテレビジョン受像機１の内部に備えられている。チューナ部２１は、テレビジョン放送を受信し、放送信号を取り出す。放送信号は所定の処理により、映像信号と音声信号とに分離される。分離された映像信号に基づいて液晶表示パネル１２に映像が表示され、分離された音声信号に基づいてスピーカユニット４より音声が出力される。 The television receiver 1 includes a front frame 11, a liquid crystal display panel 12, a tuner unit 21 (reception unit), a stand 3, and a speaker unit 4. The front frame 11 has a rectangular frame shape and covers the peripheral edge of the liquid crystal display panel 12. The liquid crystal display panel 12 has a rectangular plate shape and displays an image. The stand 3 is for placing the television receiver 1 upright on a flat surface such as a table. The speaker unit 4 is provided along one long side of the liquid crystal display panel 12, has substantially the same lengthwise dimensions as the front frame 11, and has a substantially rectangular parallelepiped shape. Further, the tuner unit 21 is provided inside the television receiver 1. The tuner unit 21 receives the television broadcast and takes out the broadcast signal. The broadcast signal is separated into a video signal and an audio signal by a predetermined process. The video is displayed on the liquid crystal display panel 12 based on the separated video signal, and the audio is output from the speaker unit 4 based on the separated audio signal.

以下の説明においては、テレビジョン受像機１の液晶表示パネル１２が設けられた側を前と言い、テレビジョン受像機１の厚み方向において、前と反対側を後と言う。また、テレビジョン受像機１の液晶表示パネル１２を正面にして、図面視左右をそれぞれ左右と言い、図面視上下をそれぞれ上下と言う。更に、テレビジョン受像機１の各構成要素の説明においては、各構成要素が組み付けられた状態での方向を用いて記述する。 In the following description, the side of the television receiver 1 provided with the liquid crystal display panel 12 is referred to as the front, and the side opposite to the front in the thickness direction of the television receiver 1 is referred to as the rear. Further, with the liquid crystal display panel 12 of the television receiver 1 facing the front, the left and right sides of the drawing are referred to as left and right, and the top and bottom of the drawing are referred to as top and bottom, respectively. Further, in the description of each component of the television receiver 1, the direction in which each component is assembled will be used.

図２は、本実施の形態に係るテレビジョン受像機１の主要部の分解斜視図である。テレビジョン受像機１は、さらに、光学シート１３、ミドルシャーシ１４、導光板１５、反射シート１６、保持部材１７、光源１８、放熱板１９、バックライトシャーシ２０を含む。 FIG. 2 is an exploded perspective view of a main part of the television receiver 1 according to the present embodiment. The television receiver 1 further includes an optical sheet 13, a middle chassis 14, a light guide plate 15, a reflection sheet 16, a holding member 17, a light source 18, a heat sink 19, and a backlight chassis 20.

液晶表示パネル１２の後側には、光学シート１３が配置されている。光学シート１３は、導光板１５を介して入射される光源１８からの光に対して、拡散、集光等を行う。光学シート１３は、拡散シート、プリズムシート等の複数のシートが積層されたものである。 An optical sheet 13 is arranged on the rear side of the liquid crystal display panel 12. The optical sheet 13 diffuses, collects light, and the like with respect to the light from the light source 18 incident through the light guide plate 15. The optical sheet 13 is a stack of a plurality of sheets such as a diffusion sheet and a prism sheet.

ミドルシャーシ１４は、例えば樹脂で形成された４つの棒状部材であり、光学シート１３の下辺側、右辺側、上辺側及び左辺側に夫々設けられている。４つのミドルシャーシ１４はそれぞれ断面が略Ｌ字状をなしており、４つのミドルシャーシ１４が組み合わさることによって、全体として矩形枠状をなす。ミドルシャーシ１４は、内側の一部が光学シート１３及び導光板１５の間に介在することによって、光学シート１３及び導光板１５の間隔を均一に保つ。
具体的には、ミドルシャーシ１４は内側に突設された鍔部を有し、前記鍔部が導光板１５の前面側周縁部を覆うように、ミドルシャーシ１４がバックライトシャーシ２０に固定され、ミドルシャーシ１４の前記鍔部を挟んで光学シート１３が配置される。 The middle chassis 14 is, for example, four rod-shaped members made of resin, and are provided on the lower side, the right side, the upper side, and the left side of the optical sheet 13, respectively. Each of the four middle chassis 14 has a substantially L-shaped cross section, and the combination of the four middle chassis 14 forms a rectangular frame shape as a whole. A part of the inside of the middle chassis 14 is interposed between the optical sheet 13 and the light guide plate 15 to keep the distance between the optical sheet 13 and the light guide plate 15 uniform.
Specifically, the middle chassis 14 has a flange portion projecting inward, and the middle chassis 14 is fixed to the backlight chassis 20 so that the flange portion covers the front peripheral portion of the light guide plate 15. The optical sheet 13 is arranged so as to sandwich the flange portion of the middle chassis 14.

光学シート１３の後側には、導光板１５が配置されている。導光板１５は、例えば透明度の高い矩形のアクリル樹脂からなる。導光板１５は側面から入射される、光源１８からの光を拡散させて均一な平面光に変えて、前側の面から光学シート１３に向けて出射させる。
また、導光板１５は、後側の面に反射シート（図示せず）を有している。前記反射シートは、導光板１５と類似する矩形状をなし、略同一の大きさである。前記反射シートは、光源１８から入射される光を導光板１５の前記後の面から前記前の面に向けて全反射する。 A light guide plate 15 is arranged on the rear side of the optical sheet 13. The light guide plate 15 is made of, for example, a rectangular acrylic resin having high transparency. The light guide plate 15 diffuses the light from the light source 18 incident from the side surface to convert it into uniform flat light, and emits the light from the front surface toward the optical sheet 13.
Further, the light guide plate 15 has a reflective sheet (not shown) on the rear surface. The reflective sheet has a rectangular shape similar to that of the light guide plate 15, and has substantially the same size. The reflection sheet totally reflects the light incident from the light source 18 from the rear surface of the light guide plate 15 toward the front surface.

導光板１５の後側であって、導光板１５の下辺側には、保持部材１７が配置されている。保持部材１７は例えば樹脂製であり、細長い矩形をなしている。保持部材１７は導光板１５の後側にて導光板１５を保持する。保持部材１７は、例えば、導光板１５の熱膨張率と類似する熱膨張率を有する材料からなる。ここで、類似する熱膨張率とは、導光板１５の熱膨張率に対して±１０％範囲内の熱膨張率を言う。保持部材１７についての詳細は、後で説明する。 A holding member 17 is arranged on the rear side of the light guide plate 15 and on the lower side of the light guide plate 15. The holding member 17 is made of resin, for example, and has an elongated rectangular shape. The holding member 17 holds the light guide plate 15 on the rear side of the light guide plate 15. The holding member 17 is made of, for example, a material having a coefficient of thermal expansion similar to the coefficient of thermal expansion of the light guide plate 15. Here, the similar coefficient of thermal expansion means a coefficient of thermal expansion within ± 10% of the coefficient of thermal expansion of the light guide plate 15. Details of the holding member 17 will be described later.

また、導光板１５における前記下辺に係る側面と対向する位置には、光源１８が設けられている。光源１８は後述する基板１８２と、白色ＬＥＤ１８１とを有する。基板１８２は短冊状をなしており、導光板１５の前記側面と対向する対向面に複数の白色ＬＥＤ１８１が基板１８２の長手方向に沿って実装されている。 Further, a light source 18 is provided at a position of the light guide plate 15 facing the side surface of the lower side. The light source 18 has a substrate 182, which will be described later, and a white LED 181. The substrate 182 has a strip shape, and a plurality of white LEDs 181 are mounted along the longitudinal direction of the substrate 182 on the facing surface facing the side surface of the light guide plate 15.

導光板１５及び保持部材１７の後側であって、導光板１５の下辺側には、放熱板１９が配置されている。即ち、導光板１５と、放熱板１９との間に、保持部材１７が介在している。
放熱板１９は、例えばアルミニウムなどの熱伝導性の高い金属による押出成形品である。放熱板１９は短冊状をなしており、長手方向の寸法が左右方向における放熱板１９及び保持部材１７の寸法と略等しい。しかし、保持部材１７の幅方向の寸法は、上下方向における、放熱板１９の寸法より小さく、保持部材１７の寸法より大きい。保持部材１７は放熱板１９の下辺側に取り付けられる。 A heat sink 19 is arranged on the rear side of the light guide plate 15 and the holding member 17 and on the lower side of the light guide plate 15. That is, the holding member 17 is interposed between the light guide plate 15 and the heat sink 19.
The heat radiating plate 19 is an extruded product made of a metal having high thermal conductivity such as aluminum. The heat radiating plate 19 has a strip shape, and the dimensions in the longitudinal direction are substantially equal to the dimensions of the heat radiating plate 19 and the holding member 17 in the left-right direction. However, the dimension of the holding member 17 in the width direction is smaller than the dimension of the heat radiating plate 19 in the vertical direction and larger than the dimension of the holding member 17. The holding member 17 is attached to the lower side of the heat sink 19.

放熱板１９は、光源１８で発生した熱を吸収して発散させる機能を担っている。また、上述したように、導光板１５と、放熱板１９との間には、保持部材１７が部分的に介在しているので、導光板１５と、放熱板１９との間には間隔が形成されている（図１１参照）。従って、放熱板１９が吸収した熱が導光板１５又は反射シート１６伝わることを極力抑制できる。 The heat radiating plate 19 has a function of absorbing and dissipating the heat generated by the light source 18. Further, as described above, since the holding member 17 is partially interposed between the light guide plate 15 and the heat radiating plate 19, a gap is formed between the light guide plate 15 and the heat radiating plate 19. (See FIG. 11). Therefore, it is possible to suppress the heat absorbed by the heat radiating plate 19 from being transmitted to the light guide plate 15 or the reflective sheet 16 as much as possible.

放熱板１９の後側には、バックライトシャーシ２０が配置されている。バックライトシャーシ２０は、一面が開口され矩形状の底を有する箱体状をなす。バックライトシャーシ２０は、例えば鉄板をプレス加工して形成する。バックライトシャーシ２０は光学シート１３、ミドルシャーシ１４、導光板１５、反射シート１６などを収容する。また、フロントフレーム１１はバックライトシャーシ２０にネジ止めされる。 A backlight chassis 20 is arranged on the rear side of the heat sink 19. The backlight chassis 20 has a box shape with one side open and a rectangular bottom. The backlight chassis 20 is formed by, for example, pressing an iron plate. The backlight chassis 20 accommodates an optical sheet 13, a middle chassis 14, a light guide plate 15, a reflective sheet 16, and the like. Further, the front frame 11 is screwed to the backlight chassis 20.

図３は、本実施の形態に係るテレビジョン受像機１において保持部材１７が導光板１５を保持する状態を示す図であり、図４は、本実施の形態に係るテレビジョン受像機１において放熱板１９に保持部材１７を固定した状態を示す図である。図３は、導光板１５の後面側から導光板１５及び保持部材１７を示しており、図４は、放熱板１９の前面側から放熱板１９及び導光板１５を示している。 FIG. 3 is a diagram showing a state in which the holding member 17 holds the light guide plate 15 in the television receiver 1 according to the present embodiment, and FIG. 4 is a diagram showing heat dissipation in the television receiver 1 according to the present embodiment. It is a figure which shows the state which fixed the holding member 17 to a plate 19. FIG. 3 shows the light guide plate 15 and the holding member 17 from the rear surface side of the light guide plate 15, and FIG. 4 shows the heat sink 19 and the light guide plate 15 from the front side of the heat sink 19.

導光板１５の下辺に係る側面と対向するように、光源１８が配置されており、保持部材１７は導光板１５の前記下辺に沿って配置されている。保持部材１７な両端に導光板１５を保持する保持部１７１，１７１を夫々有している。即ち、保持部材１７は、導光板１５の前記下辺に係る両端部を挟持することによって導光板１５を保持する。 The light source 18 is arranged so as to face the side surface of the light guide plate 15, and the holding member 17 is arranged along the lower side of the light guide plate 15. Holding portions 171, 171 for holding the light guide plate 15 are provided at both ends of the holding member 17, respectively. That is, the holding member 17 holds the light guide plate 15 by sandwiching both ends of the light guide plate 15 with respect to the lower side thereof.

保持部材１７は、導光板１５の左側を挟持する保持部材１７Ｌと、導光板１５の右側を挟持する保持部材１７Ｒとに分割されている。しかし、本実施の形態に係るテレビジョン受像機１はこれに限るものでない。保持部材１７は保持部材１７Ｌ及び保持部材１７Ｒが一体形成された形状であっても良い。以下、説明の便宜上、保持部材１７Ｌ及び保持部材１７Ｒをまとめて保持部材１７とも言う。 The holding member 17 is divided into a holding member 17L that sandwiches the left side of the light guide plate 15 and a holding member 17R that sandwiches the right side of the light guide plate 15. However, the television receiver 1 according to the present embodiment is not limited to this. The holding member 17 may have a shape in which the holding member 17L and the holding member 17R are integrally formed. Hereinafter, for convenience of explanation, the holding member 17L and the holding member 17R are collectively referred to as a holding member 17.

保持部材１７Ｌ及び保持部材１７Ｒは、放熱板１９に掛止するための掛止部１７２を夫々３つ有している。また、放熱板１９に対する位置決めのための位置決め突起１７３を夫々３つ有している。各掛止部１７２及び各位置決め突起１７３は、保持部材１７の長手方向にて隔てて形成されている。更に、各掛止部１７２及び各位置決め突起１７３は、保持部材１７の長手方向において、保持部１７１より中央側に設けられている。 The holding member 17L and the holding member 17R each have three hooking portions 172 for hooking on the heat radiating plate 19. Further, each of the three positioning protrusions 173 for positioning with respect to the heat radiating plate 19 is provided. Each hooking portion 172 and each positioning protrusion 173 are formed so as to be separated from each other in the longitudinal direction of the holding member 17. Further, each hooking portion 172 and each positioning protrusion 173 are provided on the central side of the holding portion 171 in the longitudinal direction of the holding member 17.

図５は、図３の破線の円部分を拡大した拡大図である。
保持部材１７の上辺の３箇所には、保持部材１７の面に沿う方向に延びる矩形部が形成されており、掛止部１７２は前記矩形部の内側に設けられている。各掛止部１７２は、例えばフック形状であり、前記矩形部から後側に、即ち放熱板１９側へ突設されている（図１１参照）。 FIG. 5 is an enlarged view of an enlarged circle portion of the broken line in FIG.
Rectangular portions extending in a direction along the surface of the holding member 17 are formed at three locations on the upper side of the holding member 17, and the hooking portion 172 is provided inside the rectangular portion. Each hooking portion 172 has, for example, a hook shape, and projects from the rectangular portion to the rear side, that is, to the heat sink 19 side (see FIG. 11).

各位置決め突起１７３は円筒状をなしており、保持部材１７の幅方向の中間部であって、掛止部１７２の近傍に設けられている。位置決め突起１７３は保持部材１７の後面から後側に、即ち放熱板１９側へ突設されている（図１１参照）。 Each positioning protrusion 173 has a cylindrical shape, is an intermediate portion in the width direction of the holding member 17, and is provided in the vicinity of the hooking portion 172. The positioning protrusion 173 projects from the rear surface of the holding member 17 to the rear side, that is, to the heat sink 19 side (see FIG. 11).

また、掛止部１７２及び位置決め突起１７３は、上下方向において直線上、換言すれば、左右方向において同一位置に形成されている。従って、保持部材１７の位置決めの際、掛止部１７２の掛止位置も共に定めることができる。 Further, the hooking portion 172 and the positioning protrusion 173 are formed at the same position on a straight line in the vertical direction, in other words, in the horizontal direction. Therefore, when positioning the holding member 17, the hooking position of the hooking portion 172 can also be determined.

上述したように、各掛止部１７２及び各位置決め突起１７３は、保持部材１７の長手方向において、保持部１７１より中央側に設けられている。従って、保持部１７１は位置決め突起１７３及び挟持部１７４に妨げられず、自由に伸縮できる。 As described above, each hooking portion 172 and each positioning protrusion 173 are provided on the central side of the holding portion 171 in the longitudinal direction of the holding member 17. Therefore, the holding portion 171 can be freely expanded and contracted without being hindered by the positioning protrusion 173 and the holding portion 174.

更に、保持部材１７が導光板１５の熱膨張率と類似する熱膨張率を有することから、導光板１５の伸縮に伴って保持部１７１も同程度の伸縮を行う。従って、熱膨張が生じることによって、保持部１７１と導光板１５との相対的位置がズレルことを抑制できる。よって、導光板１５の熱膨張の際にも保持部１７１が確実に導光板１５を保持できる。 Further, since the holding member 17 has a coefficient of thermal expansion similar to the coefficient of thermal expansion of the light guide plate 15, the holding portion 171 also expands and contracts to the same extent as the light guide plate 15 expands and contracts. Therefore, it is possible to prevent the relative positions of the holding portion 171 and the light guide plate 15 from being displaced due to the thermal expansion. Therefore, the holding portion 171 can reliably hold the light guide plate 15 even when the light guide plate 15 is thermally expanded.

保持部材１７は位置決め突起１７３及び掛止部１７２を用いて放熱板１９に固定される。図４に示すように、保持部材１７は、放熱板１９の下辺に沿って放熱板１９の前面に取り付けられる。また、放熱板１９の前記下辺側には、光源１８が前記下辺に沿って設けられる。 The holding member 17 is fixed to the heat sink 19 by using the positioning protrusion 173 and the hooking portion 172. As shown in FIG. 4, the holding member 17 is attached to the front surface of the heat sink 19 along the lower side of the heat sink 19. Further, a light source 18 is provided along the lower side of the heat radiating plate 19 on the lower side.

図６は、図３に示す導光板１５及び保持部材１７の図面視右側を拡大した図であり、図７は、本実施の形態に係るテレビジョン受像機１において保持部材１７が導光板１５を保持する状態を導光板１５の前側から示す部分的正面図である。 FIG. 6 is an enlarged view of the right side of the light guide plate 15 and the holding member 17 shown in FIG. 3 as viewed from the drawing. FIG. 7 shows the television receiver 1 according to the present embodiment in which the holding member 17 holds the light guide plate 15. It is a partial front view which shows the holding state from the front side of a light guide plate 15.

上述したように、導光板１５の前記下辺に沿って保持部材１７が設けられており、左右方向における導光板１５の下側両端部を保持部材１７の各保持部１７１が挟持している。導光板１５の前記下辺に係る側面１５１と対向するように光源１８の基板１８２が配置されており、基板１８２の実装面にＬＥＤ１８１が実装されている。保持部１７１は、導光板１５を保持し、ＬＥＤ１８１の先端面と導光板１５の側面１５１との間隔を一定に保つ。従って、ＬＥＤ１８１と導光板１５との衝突による損傷を防ぐ。 As described above, the holding member 17 is provided along the lower side of the light guide plate 15, and each holding portion 171 of the holding member 17 sandwiches both lower end portions of the light guide plate 15 in the left-right direction. The substrate 182 of the light source 18 is arranged so as to face the side surface 151 related to the lower side of the light guide plate 15, and the LED 181 is mounted on the mounting surface of the substrate 182. The holding portion 171 holds the light guide plate 15 and keeps the distance between the front end surface of the LED 181 and the side surface 151 of the light guide plate 15 constant. Therefore, damage due to the collision between the LED 181 and the light guide plate 15 is prevented.

各保持部１７１は、導光板１５の下側端部を挟持する挟持部１７４と、ＬＥＤ１８１の先端面と導光板１５の側面１５１との間隔を一定に維持する間隔維持部１７５とを有する。 Each holding portion 171 has a holding portion 174 that sandwiches the lower end portion of the light guide plate 15, and an interval maintaining portion 175 that maintains a constant distance between the front end surface of the LED 181 and the side surface 151 of the light guide plate 15.

各挟持部１７４は矩形板状をなし、保持部材１７の長手方向の端から前側に突設されている。即ち、保持部材１７Ｌの挟持部１７４が導光板１５の下側左端を右方向に押し付け、保持部材１７Ｒの挟持部１７４が導光板１５の下側右端を左方向に押し付けることによって、保持部材１７が導光板１５を挟持する。また、各挟持部１７４と導光板１５の端部との間には、クッションＣを設けても良い。 Each holding portion 174 has a rectangular plate shape, and is projected from the longitudinal end of the holding member 17 to the front side. That is, the holding member 17 presses the lower left end of the light guide plate 15 to the right by the holding portion 174 of the holding member 17L, and the holding portion 174 of the holding member 17R pushes the lower right end of the light guide plate 15 to the left. The light guide plate 15 is sandwiched. Further, a cushion C may be provided between each holding portion 174 and the end portion of the light guide plate 15.

間隔維持部１７５は、導光板１５の側面１５１の端部と接触して側面１５１を支える扁平接触部１７６と、後述する放熱板１９の対向板部１９１と係合を行う係合部１７７とを有する。 The space maintaining portion 175 includes a flat contact portion 176 that contacts the end portion of the side surface 151 of the light guide plate 15 to support the side surface 151, and an engaging portion 177 that engages with the facing plate portion 191 of the heat sink 19 described later. Have.

扁平接触部１７６は細長い板状をなしており、保持部材１７の下辺から挟持部１７４と交差するように前側に突設されている。換言すれば、扁平接触部１７６は保持部材１７の前記下辺及び挟持部１７４の下辺から延設されている。扁平接触部１７６は幅方向（前後方向）の寸法が導光板１５の厚みと等しく、扁平接触部１７６の上面が導光板１５の側面１５１の端部と接する（図１２参照）。また、扁平接触部１７６の下面の一部分には係合部１７７が設けられている。係合部１７７が放熱板１９の対向板部１９１と係合を行うことによって、間隔維持部１７５（保持部１７１）を確実に固定できる。従って、ＬＥＤ１８１の先端面と導光板１５の側面１５１との間隔か一定に維持される。 The flat contact portion 176 has an elongated plate shape, and is projected from the lower side of the holding member 17 to the front side so as to intersect the sandwiching portion 174. In other words, the flat contact portion 176 extends from the lower side of the holding member 17 and the lower side of the holding portion 174. The dimension of the flat contact portion 176 in the width direction (front-back direction) is equal to the thickness of the light guide plate 15, and the upper surface of the flat contact portion 176 is in contact with the end portion of the side surface 151 of the light guide plate 15 (see FIG. 12). Further, an engaging portion 177 is provided on a part of the lower surface of the flat contact portion 176. By engaging the engaging portion 177 with the facing plate portion 191 of the heat radiating plate 19, the interval maintaining portion 175 (holding portion 171) can be reliably fixed. Therefore, the distance between the tip surface of the LED 181 and the side surface 151 of the light guide plate 15 is kept constant.

図８は、図４に示す放熱板１９及び保持部材１７の図面視右側を拡大した図であり、図９は、本実施の形態に係るテレビジョン受像機１において保持部材１７が放熱板１９に取り付けられた状態を放熱板１９の後側から示す部分的背面図である。また、図１０は、図８の破線の円部分を拡大して表示する斜視図である。 FIG. 8 is an enlarged view of the right side of the heat sink 19 and the holding member 17 shown in FIG. 4 as viewed from the drawing. FIG. 9 shows that the holding member 17 is attached to the heat sink 19 in the television receiver 1 according to the present embodiment. It is a partial rear view which shows the attached state from the rear side of a heat sink 19. Further, FIG. 10 is a perspective view showing an enlarged circle portion of the broken line in FIG.

上述したように、位置決め突起１７３及び掛止部１７２によって、保持部材１７は、放熱板１９の下辺に沿って放熱板１９の前面に取り付けられる。保持部材１７が放熱板１９に取り付けられた場合、放熱板１９において、保持部材１７の掛止部１７２に整合する位置には、掛止部１７２に対応する掛止孔１９２が形成されている。また、保持部材１７が放熱板１９に取り付けられた場合、放熱板１９において、保持部材１７の位置決め突起１７３に整合する位置には、位置決め突起１７３に対応する貫通孔１９３が形成されている。 As described above, the holding member 17 is attached to the front surface of the heat sink 19 along the lower side of the heat sink 19 by the positioning protrusion 173 and the hooking portion 172. When the holding member 17 is attached to the heat sink 19, a hook hole 192 corresponding to the hook portion 172 is formed at a position of the heat sink 19 that matches the hook portion 172 of the holding member 17. Further, when the holding member 17 is attached to the heat sink 19, a through hole 193 corresponding to the positioning protrusion 173 is formed at a position of the heat sink 19 that matches the positioning protrusion 173 of the holding member 17.

図１１は、図４のＡ‐Ａ線による断面図であり、図１２は、図８のＢ‐Ｂ線による断面図である。図１１及び図１２においては、説明の便宜上、導光板１５を破線にて表示している。 11 is a cross-sectional view taken along the line AA of FIG. 4, and FIG. 12 is a cross-sectional view taken along the line BB of FIG. In FIGS. 11 and 12, the light guide plate 15 is indicated by a broken line for convenience of explanation.

掛止孔１９２は、放熱板１９を厚み方向に貫通する長孔である。掛止孔１９２は長手方向が放熱板１９の長手方向に沿うように形成されている。換言すれば、掛止孔１９２の長手方向は導光板１５の長手方向と略同じである。放熱板１９の長手方向における掛止孔１９２の寸法は、保持部材１７の長手方向における掛止部１７２の寸法より大きい。保持部材１７が放熱板１９に取り付けられる場合、保持部材１７の掛止部１７２が放熱板１９の掛止孔１９２内に挿入され、掛止孔１９２の上側縁に引っかかる。 The hook hole 192 is an elongated hole that penetrates the heat radiating plate 19 in the thickness direction. The hook hole 192 is formed so that the longitudinal direction is along the longitudinal direction of the heat radiating plate 19. In other words, the longitudinal direction of the hook hole 192 is substantially the same as the longitudinal direction of the light guide plate 15. The dimension of the hook hole 192 in the longitudinal direction of the heat radiating plate 19 is larger than the dimension of the hook portion 172 in the longitudinal direction of the holding member 17. When the holding member 17 is attached to the heat sink 19, the hooking portion 172 of the holding member 17 is inserted into the hooking hole 192 of the heat sink 19 and is caught on the upper edge of the hooking hole 192.

貫通孔１９３は、放熱板１９を厚み方向に貫通する長孔である。貫通孔１９３は長手方向が放熱板１９の長手方向に沿うように形成されており、貫通孔１９３の長手方向は導光板１５の長手方向と略同じである。放熱板１９の幅方向（上下方向）における貫通孔１９３の寸法は、保持部材１７の幅方向（上下方向）における位置決め突起１７３の寸法と同じである。従って、位置決め突起１７３を貫通孔１９３に嵌め込むことによって、上下方向における保持部材１７の位置を定めることができる。
一方、放熱板１９の長手方向における貫通孔１９３の寸法は、保持部材１７の長手方向における位置決め突起１７３の寸法より大きい。 The through hole 193 is an elongated hole that penetrates the heat radiating plate 19 in the thickness direction. The through hole 193 is formed so that the longitudinal direction is along the longitudinal direction of the heat radiating plate 19, and the longitudinal direction of the through hole 193 is substantially the same as the longitudinal direction of the light guide plate 15. The dimension of the through hole 193 in the width direction (vertical direction) of the heat radiating plate 19 is the same as the dimension of the positioning protrusion 173 in the width direction (vertical direction) of the holding member 17. Therefore, by fitting the positioning protrusion 173 into the through hole 193, the position of the holding member 17 in the vertical direction can be determined.
On the other hand, the dimension of the through hole 193 in the longitudinal direction of the heat sink 19 is larger than the dimension of the positioning projection 173 in the longitudinal direction of the holding member 17.

このように、本実施の形態に係るテレビジョン受像機１においては、掛止孔１９２及び貫通孔１９３の長手方向が導光板１５の長手方向と略同じであるので、保持部材１７は位置決め突起１７３及び挟持部１７４に妨げられず、自由に伸縮できる。 As described above, in the television receiver 1 according to the present embodiment, the longitudinal direction of the hook hole 192 and the through hole 193 is substantially the same as the longitudinal direction of the light guide plate 15, so that the holding member 17 has a positioning protrusion 173. And it can be expanded and contracted freely without being hindered by the holding portion 174.

即ち、保持部材１７が導光板１５の熱膨張率と類似する熱膨張率を有することから、導光板１５の伸縮に伴って保持部１７１も同程度の伸縮を行う。更に、導光板１５の熱膨張はその長手方向において大きい。しかし、掛止孔１９２及び貫通孔１９３の長手方向は導光板１５の長手方向と略同じであるので、保持部材１７（導光板１５）の熱膨張の際、掛止部１７２及び位置決め突起１７３が夫々掛止孔１９２及び貫通孔１９３内を、導光板１５の長手方向に摺動できる。従って、保持部材１７は位置決め突起１７３及び挟持部１７４に妨げられず、自由に熱膨張・収縮できる。よって、熱膨張が生じることによって、保持部１７１と導光板１５との相対的位置がズレルことを抑制でき、導光板１５の熱膨張の際にも保持部１７１が確実に導光板１５を保持できる。 That is, since the holding member 17 has a coefficient of thermal expansion similar to the coefficient of thermal expansion of the light guide plate 15, the holding portion 171 also expands and contracts to the same extent as the light guide plate 15 expands and contracts. Further, the thermal expansion of the light guide plate 15 is large in the longitudinal direction thereof. However, since the longitudinal direction of the hooking hole 192 and the through hole 193 is substantially the same as the longitudinal direction of the light guide plate 15, when the holding member 17 (light guide plate 15) is thermally expanded, the hooking portion 172 and the positioning protrusion 173 are formed. The light guide plate 15 can be slid in the longitudinal direction in the hook hole 192 and the through hole 193, respectively. Therefore, the holding member 17 can be freely expanded and contracted without being hindered by the positioning protrusion 173 and the holding portion 174. Therefore, it is possible to prevent the relative positions of the holding portion 171 and the light guide plate 15 from shifting due to the thermal expansion, and the holding portion 171 can reliably hold the light guide plate 15 even when the light guide plate 15 is thermally expanded. ..

放熱板１９の前記下辺には光源１８が配置される。放熱板１９は、前記下辺から前側（導光板１５側）に突設された対向板部１９１を有する。対向板部１９１は放熱板１９の前記下辺に沿って形成されており、細長い矩形板状をなしている。対向板部１９１は、両端部にて、幅方向（前後方向）の寸法が狭くなっている。図１１及び図１２に示しているように、対向板部１９１の上面は導光板１５の側面１５１と対向している。 A light source 18 is arranged on the lower side of the heat radiating plate 19. The heat radiating plate 19 has a facing plate portion 191 projecting from the lower side to the front side (light guide plate 15 side). The facing plate portion 191 is formed along the lower side of the heat radiating plate 19 and has an elongated rectangular plate shape. The facing plate portion 191 has narrow dimensions in the width direction (front-back direction) at both ends. As shown in FIGS. 11 and 12, the upper surface of the facing plate portion 191 faces the side surface 151 of the light guide plate 15.

対向板部１９１において、両端部を除く部分には、光源１８が配置される。また、対向板部１９１における両端部には、保持部１７１の間隔維持部１７５（係合部１７７）が係合される。 A light source 18 is arranged at a portion of the facing plate portion 191 excluding both ends. Further, the space maintenance portion 175 (engagement portion 177) of the holding portion 171 is engaged with both ends of the facing plate portion 191.

上述の如く、保持部１７１の間隔維持部１７５は、扁平接触部１７６及び係合部１７７を有しており、扁平接触部１７６の前記上面には導光板１５の側面１５１の端部が載置される。扁平接触部１７６の下面における前側縁には係合部１７７が延設されている。係合部１７７は、縦断面視Ｌ字の形状をなしており、扁平接触部１７６と共に、後側（放熱板１９側）に向けて開口しているＣ字形状をなす（図１２参照）。係合部１７７は扁平接触部１７６の下面を用いて放熱板１９の対向板部１９１との係合を行う。従って、間隔維持部１７５の固定が確実に行われ、ＬＥＤ１８１の先端面と導光板１５の側面１５１との間隔（例えば、０．４±０．１ｍｍ）が安定に維持できる。 As described above, the space maintaining portion 175 of the holding portion 171 has a flat contact portion 176 and an engaging portion 177, and the end portion of the side surface 151 of the light guide plate 15 is placed on the upper surface of the flat contact portion 176. Will be done. An engaging portion 177 extends from the front side edge on the lower surface of the flat contact portion 176. The engaging portion 177 has an L-shaped vertical cross-sectional view, and together with the flat contact portion 176, has a C-shaped opening toward the rear side (heat sink 19 side) (see FIG. 12). The engaging portion 177 engages with the facing plate portion 191 of the heat radiating plate 19 by using the lower surface of the flat contact portion 176. Therefore, the distance maintaining portion 175 is reliably fixed, and the distance (for example, 0.4 ± 0.1 mm) between the front end surface of the LED 181 and the side surface 151 of the light guide plate 15 can be stably maintained.

また、このように、本実施の形態に係るテレビジョン受像機１においては、対向板部１９１の上面に光源１８が配置されており、対向板部１９１の両端に係合された間隔維持部１７５によって、ＬＥＤ１８１の先端面と導光板１５の側面１５１との間隔が維持されている。従って、ＬＥＤ１８１の先端面の位置、及び、導光板１５の側面１５１の位置が共に変更するので、例えば、設計誤差等によって上下方向において対向板部１９１の位置にバラツキが生じた場合であっても、ＬＥＤ１８１の先端面と導光板１５の側面１５１との間隔を維持できる。 Further, as described above, in the television receiver 1 according to the present embodiment, the light source 18 is arranged on the upper surface of the facing plate portion 191 and the space maintaining portion 175 engaged with both ends of the facing plate portion 191. The distance between the tip surface of the LED 181 and the side surface 151 of the light guide plate 15 is maintained. Therefore, since the position of the tip surface of the LED 181 and the position of the side surface 151 of the light guide plate 15 are both changed, for example, even if the position of the facing plate portion 191 varies in the vertical direction due to a design error or the like. , The distance between the tip surface of the LED 181 and the side surface 151 of the light guide plate 15 can be maintained.

以上においては、テレビジョン受像機１がいわゆるエッジ型である場合を例に挙げて説明したが、本実施の形態に係るテレビジョン受像機１はこれに限るものでなく、いわゆる直下型であっても良い。 In the above, the case where the television receiver 1 is a so-called edge type has been described as an example, but the television receiver 1 according to the present embodiment is not limited to this, and is a so-called direct type. Is also good.

本開示の実施態様１においては、矩形の導光板１５を備える表示装置１において、前記導光板１５と同一又は類似する膨張率を有し、前記導光板１５の一辺に沿って設けられ、前記導光板１５を保持する保持部材１７を備えることを特徴とする。 In the first embodiment of the present disclosure, the display device 1 provided with the rectangular light guide plate 15 has an expansion coefficient equal to or similar to that of the light guide plate 15 and is provided along one side of the light guide plate 15 to provide the guide. It is characterized by including a holding member 17 for holding the light plate 15.

本実施形態によれば、前記導光板を保持する、前記保持部材が前記導光板の一辺に沿って設けられており、前記導光板と同一又は類似する膨張率を有する。従って、前記導光板の熱膨張・収縮の際、前記保持部材も前記導光板と同程度の熱膨張・収縮を行い、前記導光板の保持状態を維持出来る。 According to the present embodiment, the holding member for holding the light guide plate is provided along one side of the light guide plate, and has the same or similar expansion coefficient as the light guide plate. Therefore, at the time of thermal expansion / contraction of the light guide plate, the holding member also undergoes thermal expansion / contraction to the same extent as the light guide plate, and the holding state of the light guide plate can be maintained.

本開示の実施態様２においては、前記導光板１５と対向する放熱板１９を備え、前記保持部材１７は、前記導光板１５及び前記放熱板１９の間に介在し、長手方向に沿って移動可能に、前記放熱板１９に取り付けられていることを特徴とする。 In the second embodiment of the present disclosure, a heat sink 19 facing the light guide plate 15 is provided, and the holding member 17 is interposed between the light guide plate 15 and the heat sink 19 and can move along the longitudinal direction. It is characterized in that it is attached to the heat sink 19.

本実施形態によれば、前記保持部材が前記導光板及び前記放熱板の間に介在することによって、前記導光板及び前記放熱板の間に間隔を設け、前記放熱板の熱が前記導光板に伝導されることを防止できる。
また、前記保持部材が、長手方向に沿って移動可能に、前記放熱板に取り付けられているので、例えば前記保持部材が熱膨張・収縮する場合であっても、前記保持部材が前記放熱板に取り付けられた状態を維持できる。 According to the present embodiment, the holding member is interposed between the light guide plate and the heat radiating plate, so that a space is provided between the light guide plate and the heat radiating plate, and the heat of the heat radiating plate is conducted to the light guide plate. Can be prevented.
Further, since the holding member is attached to the heat sink so as to be movable along the longitudinal direction, the holding member is attached to the heat sink even when the holding member thermally expands or contracts, for example. Can be kept attached.

本開示の実施態様３においては、前記保持部材１７は前記放熱板１９に掛止するフック状の掛止部１７２を有し、前記放熱板１９は、矩形をなし、前記導光板１５の前記一辺に沿って設けられ、前記保持部材１７の前記掛止部１７２に対応する掛止孔１９２を有しており、前記保持部材１７の長手方向における前記掛止部１７２の寸法は、前記放熱板１９の長手方向における前記掛止孔１９２の寸法より小さいことを特徴とする。 In the third embodiment of the present disclosure, the holding member 17 has a hook-shaped hook-shaped hooking portion 172 for hooking on the heat sink 19, and the heat sink 19 has a rectangular shape, and the one side of the light guide plate 15 is formed. It has a hooking hole 192 corresponding to the hooking portion 172 of the holding member 17, and the dimension of the hooking portion 172 in the longitudinal direction of the holding member 17 is the heat sink 19. It is characterized in that it is smaller than the size of the hook hole 192 in the longitudinal direction of the.

本実施形態によれば、前記保持部材の長手方向における前記掛止部の寸法は、前記放熱板の長手方向における前記掛止孔の寸法より小さいので、前記保持部材又は前記放熱板の長手方向における前記掛止部の移動が可能であり、例えば前記保持部材が熱膨張・収縮する場合であっても、前記保持部材の前記掛止部及び前記放熱板の前記掛止孔の掛止状態を維持できる。 According to the present embodiment, the dimension of the hooking portion in the longitudinal direction of the holding member is smaller than the dimension of the hooking hole in the longitudinal direction of the heat sink, and therefore the dimension of the holding member or the heat sink in the longitudinal direction. The hooking portion can be moved, for example, even when the holding member thermally expands and contracts, the hooking state of the hooking portion of the holding member and the hooking hole of the heat sink is maintained. can.

本開示の実施態様４においては、前記保持部材１７は前記放熱板１９に対する位置を決める位置決め突起１７３を有し、前記放熱板１９は、矩形をなし、前記導光板１５の前記一辺に沿って設けられ、前記保持部材１７の前記位置決め突起１７３に対応する貫通孔１９３を有しており、前記保持部材１７の長手方向における前記位置決め突起１７３の寸法は、前記放熱板１９の長手方向における前記貫通孔１９３の寸法より小さいことを特徴とする。 In the fourth embodiment of the present disclosure, the holding member 17 has a positioning protrusion 173 that determines a position with respect to the heat sink 19, and the heat sink 19 has a rectangular shape and is provided along the one side of the light guide plate 15. The holding member 17 has a through hole 193 corresponding to the positioning protrusion 173, and the dimension of the positioning protrusion 173 in the longitudinal direction of the holding member 17 is the through hole in the longitudinal direction of the heat sink 19. It is characterized by being smaller than the size of 193.

本実施形態によれば、前記保持部材の長手方向における前記位置決め突起の寸法は、前記放熱板の長手方向における前記貫通孔の寸法より小さいので、前記保持部材又は前記放熱板の長手方向における前記位置決め突起の移動が可能であり、例えば前記保持部材が熱膨張・収縮する場合であっても、前記保持部材の前記位置決め突起及び前記放熱板の前記貫通孔の結合状態を維持できる。 According to the present embodiment, since the dimension of the positioning protrusion in the longitudinal direction of the holding member is smaller than the dimension of the through hole in the longitudinal direction of the heat sink, the positioning of the holding member or the heat sink in the longitudinal direction. The protrusions can be moved, and for example, even when the holding member thermally expands and contracts, the coupling state of the positioning protrusion of the holding member and the through hole of the heat sink can be maintained.

本開示の実施態様５においては、前記導光板１５の前記一辺側に配置された光源１８を備え、前記保持部材１７は、前記導光板１５の前記一辺の両端に係る端部を挟持する挟持部１７４と、前記導光板１５の前記一辺に係る一側面１５１と前記光源１８との間隔を維持する間隔維持部１７５とを有することを特徴とする。 In the fifth embodiment of the present disclosure, the light source 18 arranged on the one side of the light guide plate 15 is provided, and the holding member 17 holds the end portions of the light guide plate 15 at both ends of the one side. It is characterized by having 174 and a space maintaining portion 175 that maintains a distance between one side surface 151 related to the one side of the light guide plate 15 and the light source 18.

本実施形態によれば、前記保持部材が、前記挟持部と前記間隔維持部とを有するので、前記導光板を確実に保持でき、かつ前記導光板の前記一側面と前記光源との間隔を均一に維持できる。 According to the present embodiment, since the holding member has the holding portion and the spacing portion, the light guide plate can be reliably held and the distance between the one side surface of the light guide plate and the light source is uniform. Can be maintained.

本開示の実施態様６においては、前記放熱板１９は前記導光板１５の前記一側面１５１と対向する対向板部１９１を有しており、前記保持部材１７の前記間隔維持部１７５は、前記導光板１５の前記一側面１５１の端部と接する扁平接触部１７６と、前記放熱板１９の前記対向板部１９１と係合する係合部１７７とを有することを特徴とする。 In the sixth embodiment of the present disclosure, the heat sink 19 has a facing plate portion 191 facing the one side surface 151 of the light guide plate 15, and the spacing maintaining portion 175 of the holding member 17 has the guiding portion 175. It is characterized by having a flat contact portion 176 in contact with an end portion of the one side surface 151 of the light plate 15, and an engaging portion 177 engaged with the facing plate portion 191 of the heat sink 19.

本実施形態によれば、前記間隔維持部の前記扁平接触部が前記導光板の前記一側面の端部を支えて前記導光板の前記一側面と前記光源との間隔を均一に維持する。この際、前記間隔維持部の前記係合部は前記放熱板の前記対向板部と係合を行い、前記扁平接触部の位置を安定にする。 According to the present embodiment, the flat contact portion of the distance maintaining portion supports the end portion of the one side surface of the light guide plate to uniformly maintain the distance between the one side surface of the light guide plate and the light source. At this time, the engaging portion of the spacing maintaining portion engages with the facing plate portion of the heat radiating plate to stabilize the position of the flat contact portion.

本開示の実施態様７においては、前記位置決め突起１７３は、前記保持部材１７の長手方向において、前記間隔維持部１７５より中央側に設けられていることを特徴とする。 In the seventh embodiment of the present disclosure, the positioning protrusion 173 is provided on the central side of the spacing maintenance portion 175 in the longitudinal direction of the holding member 17.

本実施形態によれば、前記位置決め突起が、前記保持部材の長手方向において、前記間隔維持部より中央側に設けられているので、前記間隔維持部の熱膨張・収縮の際、前記位置決め突起と前記貫通孔との係合が妨げにならない。 According to the present embodiment, since the positioning protrusion is provided on the center side of the gap maintenance portion in the longitudinal direction of the holding member, the positioning protrusion and the positioning protrusion are provided when the gap maintenance portion is thermally expanded or contracted. Engagement with the through hole does not interfere.

本開示の実施態様８においては、上述の実施形態に係る表示装置１と、テレビジョン放送を受信する受信部２１と、前記受信部２１で受信したテレビジョン放送に基づいて画像を表示する表示パネル１２とを備えることを特徴する。 In the eighth embodiment of the present disclosure, a display device 1 according to the above-described embodiment, a receiving unit 21 for receiving a television broadcast, and a display panel for displaying an image based on the television broadcast received by the receiving unit 21. It is characterized by having twelve.

本実施形態によれば、上述の表示装置１を用いることにより、導光板が熱膨張・収縮する場合においても確実に導光板を保持できるテレビジョン受像機を提供することができる。 According to the present embodiment, by using the above-mentioned display device 1, it is possible to provide a television receiver capable of reliably holding the light guide plate even when the light guide plate thermally expands and contracts.

１ テレビジョン受像機
１２ 液晶表示パネル
１５ 導光板
１７ 保持部材
１８ 光源
１９ 放熱板
２１ チューナ部
１５１ 側面（一側面）
１７２ 掛止部
１７３ 位置決め突起
１７４ 挟持部
１７５ 間隔維持部
１７６ 扁平接触部
１７７ 係合部
１９１ 対向板部
１９２ 掛止孔
１９３ 貫通孔 1 Television receiver 12 Liquid crystal display panel 15 Light guide plate 17 Holding member 18 Light source 19 Heat sink 21 Tuner part 151 Side (one side)
172 Hooking part 173 Positioning protrusion 174 Holding part 175 Spacing part 176 Flat contact part 177 Engaging part 191 Opposing plate part 192 Hooking hole 193 Through hole

Claims (8)

矩形の導光板を備える表示装置において、
前記導光板の膨張率に対して±１０％範囲内の膨張率を有し、前記導光板の一辺に沿って設けられ、前記導光板を保持する保持部材と、
前記導光板と対向する放熱板と、を備え、
前記保持部材は、
前記導光板及び前記放熱板の間に介在し、
前記保持部材の長手方向に沿って移動可能に、前記放熱板に取り付けられ、
前記放熱板に掛止するフック状の掛止部を有しており、
前記放熱板は、
矩形をなし、前記導光板の前記一辺に沿って設けられ、前記保持部材の前記掛止部に対応する掛止孔を有しており、
前記保持部材の長手方向における前記掛止部の寸法は、前記放熱板の長手方向における前記掛止孔の寸法より小さい表示装置であって、
前記導光板の前記一辺側に配置された光源を備え、
前記保持部材は、
前記導光板の前記一辺の両端に係る端部を挟持する挟持部と、
前記導光板の前記一辺に係る一側面と前記光源との間隔を維持する間隔維持部とを有することを特徴とする表示装置。 In a display device provided with a rectangular light guide plate,
A holding member having an expansion coefficient within ± 10% of the expansion coefficient of the light guide plate, provided along one side of the light guide plate, and holding the light guide plate .
A heat sink facing the light guide plate is provided .
The holding member is
Intervening between the light guide plate and the heat radiation plate,
Attached to the heat sink so as to be movable along the longitudinal direction of the holding member,
It has a hook-shaped hook-shaped hook that hooks on the heat sink .
The heat sink is
It has a rectangular shape, is provided along the one side of the light guide plate, and has a hook hole corresponding to the hook portion of the holding member.
The dimension of the hooking portion in the longitudinal direction of the holding member is smaller than the dimension of the hooking hole in the longitudinal direction of the heat sink.
A light source arranged on the one side of the light guide plate is provided.
The holding member is
A holding portion that holds the ends of the light guide plate at both ends of the one side, and a holding portion.
A display device having a space maintaining portion for maintaining a distance between one side surface of the light guide plate and the light source . 樹脂製の矩形の導光板を備える表示装置において、
前記導光板の一辺に沿って設けられ、前記導光板を保持する、樹脂製の保持部材と、
前記導光板と対向する放熱板と、を備え、
前記保持部材は、
前記導光板及び前記放熱板の間に介在し、
前記保持部材の長手方向に沿って移動可能に、前記放熱板に取り付けられ、
前記放熱板に掛止するフック状の掛止部を有しており、
前記放熱板は、
矩形をなし、前記導光板の前記一辺に沿って設けられ、前記保持部材の前記掛止部に対応する掛止孔を有しており、
前記保持部材の長手方向における前記掛止部の寸法は、前記放熱板の長手方向における前記掛止孔の寸法より小さい表示装置であって、
前記導光板の前記一辺側に配置された光源を備え、
前記保持部材は、
前記導光板の前記一辺の両端に係る端部を挟持する挟持部と、
前記導光板の前記一辺に係る一側面と前記光源との間隔を維持する間隔維持部とを有することを特徴とする表示装置。 In a display device provided with a rectangular light guide plate made of resin,
A resin-made holding member provided along one side of the light guide plate and holding the light guide plate.
A heat sink facing the light guide plate is provided.
The holding member is
Intervening between the light guide plate and the heat radiation plate,
Attached to the heat sink so as to be movable along the longitudinal direction of the holding member,
It has a hook-shaped hook-shaped hook that hooks on the heat sink.
The heat sink is
It has a rectangular shape, is provided along the one side of the light guide plate, and has a hook hole corresponding to the hook portion of the holding member .
The dimension of the hooking portion in the longitudinal direction of the holding member is smaller than the dimension of the hooking hole in the longitudinal direction of the heat sink.
A light source arranged on the one side of the light guide plate is provided.
The holding member is
A holding portion that holds the ends of the light guide plate at both ends of the one side, and a holding portion.
A display device having a space maintaining portion for maintaining a distance between one side surface of the light guide plate and the light source. 矩形の導光板を備える表示装置において、In a display device provided with a rectangular light guide plate,
前記導光板の膨張率に対して±１０％範囲内の膨張率を有し、前記導光板の一辺に沿って設けられ、前記導光板を保持する保持部材と、 A holding member having an expansion coefficient within ± 10% of the expansion coefficient of the light guide plate, provided along one side of the light guide plate, and holding the light guide plate.
前記導光板と対向する放熱板と、を備え、 A heat sink facing the light guide plate is provided.
前記保持部材は、 The holding member is
前記導光板及び前記放熱板の間に介在し、 Intervening between the light guide plate and the heat radiation plate,
前記保持部材の長手方向に沿って移動可能に、前記放熱板に取り付けられ、 Attached to the heat sink so as to be movable along the longitudinal direction of the holding member,
前記放熱板に対する位置を決める位置決め突起を有しており、 It has a positioning protrusion that determines the position with respect to the heat sink.
前記放熱板は、 The heat sink is
矩形をなし、前記導光板の前記一辺に沿って設けられ、前記保持部材の前記位置決め突起に対応する貫通孔を有しており、 It has a rectangular shape, is provided along the one side of the light guide plate, and has a through hole corresponding to the positioning protrusion of the holding member.
前記保持部材の長手方向における前記位置決め突起の寸法は、前記放熱板の長手方向における前記貫通孔の寸法より小さい表示装置であって、 The dimension of the positioning protrusion in the longitudinal direction of the holding member is smaller than the dimension of the through hole in the longitudinal direction of the heat sink.
前記導光板の前記一辺側に配置された光源を備え、 A light source arranged on the one side of the light guide plate is provided.
前記保持部材は、 The holding member is
前記導光板の前記一辺の両端に係る端部を挟持する挟持部と、 A holding portion that holds the ends of the light guide plate at both ends of the one side, and a holding portion.
前記導光板の前記一辺に係る一側面と前記光源との間隔を維持する間隔維持部とを有することを特徴とする表示装置。 A display device having a space maintaining portion for maintaining a distance between one side surface of the light guide plate and the light source. 樹脂製の矩形の導光板を備える表示装置において、
前記導光板の一辺に沿って設けられ、前記導光板を保持する、樹脂製の保持部材と、
前記導光板と対向する放熱板と、を備え、
前記保持部材は、
前記導光板及び前記放熱板の間に介在し、
前記保持部材の長手方向に沿って移動可能に、前記放熱板に取り付けられ、
前記放熱板に対する位置を決める位置決め突起を有しており、
前記放熱板は、
矩形をなし、前記導光板の前記一辺に沿って設けられ、前記保持部材の前記位置決め突起に対応する貫通孔を有しており、
前記保持部材の長手方向における前記位置決め突起の寸法は、前記放熱板の長手方向における前記貫通孔の寸法より小さい表示装置であって、
前記導光板の前記一辺側に配置された光源を備え、
前記保持部材は、
前記導光板の前記一辺の両端に係る端部を挟持する挟持部と、
前記導光板の前記一辺に係る一側面と前記光源との間隔を維持する間隔維持部とを有することを特徴とする表示装置。 In a display device provided with a rectangular light guide plate made of resin,
A resin-made holding member provided along one side of the light guide plate and holding the light guide plate.
A heat sink facing the light guide plate is provided.
The holding member is
Intervening between the light guide plate and the heat radiation plate,
Attached to the heat sink so as to be movable along the longitudinal direction of the holding member,
It has a positioning protrusion that determines the position with respect to the heat sink.
The heat sink is
It has a rectangular shape, is provided along the one side of the light guide plate, and has a through hole corresponding to the positioning protrusion of the holding member.
The dimension of the positioning protrusion in the longitudinal direction of the holding member is smaller than the dimension of the through hole in the longitudinal direction of the heat sink.
A light source arranged on the one side of the light guide plate is provided.
The holding member is
A holding portion that holds the ends of the light guide plate at both ends of the one side, and a holding portion.
A display device having a space maintaining portion for maintaining a distance between one side surface of the light guide plate and the light source. 前記放熱板は前記導光板の前記一側面と対向する対向板部を有しており、
前記保持部材の前記間隔維持部は、
前記導光板の前記一側面の端部と接する扁平接触部と、
前記放熱板の前記対向板部と係合する係合部と
を有することを特徴とする請求項３または４に記載の表示装置。 The heat sink has a facing plate portion facing the one side surface of the light guide plate.
The space maintenance portion of the holding member is
A flat contact portion in contact with the end of the one side surface of the light guide plate,
The display device according to claim 3 or 4 , wherein the display device has an engaging portion that engages with the facing plate portion of the heat radiating plate. 前記放熱板は前記導光板の前記一側面と対向する対向板部を有しており、
前記保持部材の前記間隔維持部は、
前記導光板の前記一側面の端部と接する扁平接触部と、
前記放熱板の前記対向板部と係合する係合部と
を有することを特徴とする請求項１または２に記載の表示装置。 The heat sink has a facing plate portion facing the one side surface of the light guide plate.
The space maintenance portion of the holding member is
A flat contact portion in contact with the end of the one side surface of the light guide plate,
With an engaging portion that engages with the facing plate portion of the heat sink
The display device according to claim 1 or 2, wherein the display device has . 前記位置決め突起は、前記保持部材の長手方向において、前記間隔維持部より中央側に設けられていることを特徴とする請求項３から５のいずれか１項に記載の表示装置。 The display device according to any one of claims 3 to 5 , wherein the positioning protrusion is provided on the central side of the spacing maintenance portion in the longitudinal direction of the holding member. 請求項１から請求項７のいずれか一つに記載の表示装置と、
テレビジョン放送を受信する受信部と、
前記受信部で受信したテレビジョン放送に基づいて画像を表示する表示パネルとを備えることを特徴とするテレビジョン受像機。 The display device according to any one of claims 1 to 7.
A receiver that receives television broadcasts and
A television receiver comprising a display panel for displaying an image based on a television broadcast received by the receiving unit.

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