JP2002297047A - Display device - Google Patents
Display deviceInfo
- Publication number
- JP2002297047A JP2002297047A JP2001094661A JP2001094661A JP2002297047A JP 2002297047 A JP2002297047 A JP 2002297047A JP 2001094661 A JP2001094661 A JP 2001094661A JP 2001094661 A JP2001094661 A JP 2001094661A JP 2002297047 A JP2002297047 A JP 2002297047A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- reflecting surface
- row
- display element
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000005286 illumination Methods 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 39
- 210000002858 crystal cell Anatomy 0.000 description 8
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Instrument Panels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、透過型液晶表示素
子等の透過型表示素子を用いた表示装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device using a transmissive display device such as a transmissive liquid crystal display device.
【０００２】[0002]
【従来の技術】従来より、図１０及び図１１に示すよう
な液晶表示装置１がある。液晶表示装置１は、液晶表示
素子２と、この液晶表示素子２を透過照明する照明手段
３とを有している。液晶表示素子２は、一対の透光性基
板に液晶を封入した液晶セル４の前後面に偏光部材５，
６を貼着したものである。照明手段３は、硬質配線板７
及びこの硬質配線板７に接続された複数の発光ダイオー
ド８ａ，８ｂ，８ｃ（点状光源）からなるものである。
発光ダイオード８ａ，８ｂ，８ｃは、互いに近接して横
３列に配置されており、第１列には９個の発光ダイオー
ド８ａ、第２列には８個の発光ダイオード８ｂ、第３列
には９個の発光ダイオード８ｃ、合計２６個が配置され
ている。2. Description of the Related Art Conventionally, there is a liquid crystal display device 1 as shown in FIGS. The liquid crystal display device 1 has a liquid crystal display element 2 and illuminating means 3 for transmitting and illuminating the liquid crystal display element 2. The liquid crystal display element 2 includes polarizing members 5 on the front and rear surfaces of a liquid crystal cell 4 in which liquid crystal is sealed in a pair of translucent substrates.
6 is affixed. The lighting means 3 includes a hard wiring board 7
And a plurality of light emitting diodes 8a, 8b, 8c (point light sources) connected to the hard wiring board 7.
The light emitting diodes 8a, 8b, 8c are arranged in three horizontal rows close to each other, nine light emitting diodes 8a in a first row, eight light emitting diodes 8b in a second row, and a third row. Has nine light emitting diodes 8c, and a total of 26 light emitting diodes are arranged.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、第２列
の発光ダイオード８ｂの外側領域Ｓが、他の領域に比較
して暗くなってしまうという問題を有していた。特に、
液晶表示装置１を斜めから見た場合、即ち、観察者の目
９の位置が光軸Ａから外れている場合、正面から見た場
合より、暗い領域が広くなる。例えば、液晶表示装置１
を左側から見た場合、液晶表示素子２の右側が暗く観察
される（図１２参照）。なお、図面の都合上、液晶表示
素子２と観察者の目９との間隔は実際よりも小さく図示
している。本発明は、上記問題に鑑みなされたものであ
り、透過型表示素子を略一様に照明できる照明手段を備
えた表示装置を提供するものである。However, there is a problem that the outer region S of the second row of light emitting diodes 8b becomes darker than other regions. In particular,
When the liquid crystal display device 1 is viewed obliquely, that is, when the position of the observer's eye 9 is deviated from the optical axis A, the dark area becomes wider than when viewed from the front. For example, the liquid crystal display device 1
When viewed from the left side, the right side of the liquid crystal display element 2 is observed dark (see FIG. 12). Note that, for convenience of the drawing, the distance between the liquid crystal display element 2 and the eyes 9 of the observer is smaller than the actual distance. The present invention has been made in view of the above problems, and has as its object to provide a display device provided with an illuminating unit that can illuminate a transmissive display element substantially uniformly.
【０００４】[0004]
【課題を解決するための手段】本発明は、前記課題を解
決するため、透過型表示素子１５と、前記透過型表示素
子１５を照明する照明手段１７と、前記透過型表示素子
１５と前記照明手段１７の間に配設された反射部材１
６，４２と、を有する表示装置であって、前記照明手段
１７は、少なくとも第一の列及び第二の列に配置された
複数の点状光源３７ａ，３７ｂ，３７ｃを有し、前記反
射部材１６，４２は、前記第一の列に対応する第一の反
射面４０ａ，４０ｃ，４５ａ，４５ｃと、前記第二の列
に対応する第二の反射面４０ｂ，４５ｂと、を有するも
のである。According to the present invention, there is provided a transmissive display element, illumination means for illuminating the transmissive display element, the transmissive display element and the illumination. Reflecting member 1 arranged between means 17
6, 42, wherein the illuminating means 17 has a plurality of point light sources 37a, 37b, 37c arranged in at least a first row and a second row, and the reflecting member Reference numerals 16 and 42 have first reflecting surfaces 40a, 40c, 45a and 45c corresponding to the first row, and second reflecting surfaces 40b and 45b corresponding to the second row. .
【０００５】また、本発明は、前記反射部材１６は、前
記照明手段１７側に設けられた第一の開口部３８と、前
記透過型表示素子１５側に設けられた第二の開口部３９
と、を有する筒状であることを特徴とする表示装置。According to the present invention, the reflection member 16 has a first opening 38 provided on the illumination means 17 side and a second opening 39 provided on the transmission type display element 15 side.
And a tubular device having:
【０００６】また、本発明は、前記第一の反射面４０
ａ，４０ｃ，４５ａ，４５ｃ及び前記第二の反射面４０
ｂ，４５ｂの少なくとも一方は、光軸Ａに対して傾斜し
ているものである。The present invention also relates to the first reflecting surface 40.
a, 40c, 45a, 45c and the second reflecting surface 40
At least one of b and 45b is inclined with respect to the optical axis A.
【０００７】[0007]
【発明の実施の形態】以下、本発明を車両用ヘッドアッ
プディスプレイに応用した一実施形態を説明する。図１
乃至図７は第一実施形態を示す図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a head-up display for a vehicle will be described below. Figure 1
FIG. 7 to FIG. 7 are diagrams showing the first embodiment.
【０００８】１０はヘッドアップディスプレイであり、
このヘッドアップディスプレイ１０は車両のダッシュボ
ード１１の内部に配設されている（図２参照）。ヘッド
アップディスプレイ１０が投射する表示光はフロントガ
ラス１２により運転者１３の方向に反射される。運転者
１３は虚像Ｖを風景と重畳させて観察することができ
る。図３はヘッドアップディスプレイ１０の断面図であ
る。１４は液晶表示器（表示装置）であり、この液晶表
示器１４は液晶表示素子１５（透過型表示素子），反射
部材１６及び照明手段１７を有している。１８は凹面鏡
であり、この凹面鏡１８は液晶表示器１４の表示光を後
述するハウジングの開口部に反射させる。Reference numeral 10 denotes a head-up display,
The head-up display 10 is provided inside a dashboard 11 of the vehicle (see FIG. 2). The display light projected by the head-up display 10 is reflected by the windshield 12 in the direction of the driver 13. The driver 13 can observe the virtual image V superimposed on the landscape. FIG. 3 is a sectional view of the head-up display 10. Reference numeral 14 denotes a liquid crystal display (display device). The liquid crystal display 14 has a liquid crystal display element 15 (transmission type display element), a reflecting member 16 and an illumination unit 17. Reference numeral 18 denotes a concave mirror. The concave mirror 18 reflects display light of the liquid crystal display 14 to an opening of a housing described later.
【０００９】１９はハウジングであり、このハウジング
１９には液晶表示器１４及び凹面鏡１８が収容される。
ハウジング１９には表示光が出射する開口部２０が設け
られており、この開口部２０には透光性樹脂（例えばア
クリル）からなる透光性カバー２１が配設されている。
２２は遮光壁であり、この遮光壁２２はハウジング１９
と一体に形成されており、太陽光が液晶表示素子１５に
入射し虚像Ｖが見えにくくなること（ウォッシュアウ
ト）を防止している。Reference numeral 19 denotes a housing, in which the liquid crystal display 14 and the concave mirror 18 are accommodated.
The housing 19 is provided with an opening 20 from which display light is emitted, and the opening 20 is provided with a light-transmitting cover 21 made of a light-transmitting resin (eg, acrylic).
Reference numeral 22 denotes a light-shielding wall.
To prevent the sunlight from entering the liquid crystal display element 15 to make the virtual image V difficult to see (washout).
【００１０】図４に示すように、液晶表示素子１５は、
表示用液晶セル２３，光学補償用液晶セル２４及び偏光
板２５，２６を有している。表示用液晶セル２３は、イ
ンジウムスズ酸化物（ＩＴＯ；Indium Tin Oxide）から
なる透明電極膜２７，２８が設けられた一対の透光性基
板２９，３０に液晶３１を封入したものである。各透明
電極膜２７，２８は、互いに直交するストライプ状とな
っており、透明電極膜２７と透明電極膜２８が対向する
箇所が画素となっている。光学補償用液晶セル２４は、
一対の透光性基板３２，３３に液晶３４を封入したもの
であり、表示用液晶セル２３の後方に配設されている。
偏光板２５は、表示用液晶セル２３の前面に貼着されて
おり、偏光板２６は、光学補償用液晶セル２４の後面に
貼着されている。[0010] As shown in FIG.
It has a display liquid crystal cell 23, an optical compensation liquid crystal cell 24, and polarizing plates 25 and 26. The display liquid crystal cell 23 has a structure in which a liquid crystal 31 is sealed in a pair of translucent substrates 29 and 30 provided with transparent electrode films 27 and 28 made of indium tin oxide (ITO). Each of the transparent electrode films 27 and 28 has a stripe shape orthogonal to each other, and a portion where the transparent electrode film 27 and the transparent electrode film 28 face each other is a pixel. The optical compensation liquid crystal cell 24
A liquid crystal 34 is sealed in a pair of translucent substrates 32 and 33, and is provided behind the display liquid crystal cell 23.
The polarizing plate 25 is attached to the front surface of the display liquid crystal cell 23, and the polarizing plate 26 is attached to the rear surface of the optical compensation liquid crystal cell 24.
【００１１】照明手段１７は、硬質配線板３６及びこの
硬質配線板３６に接続された複数の発光ダイオード３７
ａ，３７ｂ，３７ｃ（点状光源）からなっている。発光
ダイオード３７ａ，３７ｂ，３７ｃは、互いに近接して
横３列に配置されており、第１列（第一の列）には９個
の発光ダイオード３７ａ、第２列（第二の列）には８個
の発光ダイオード３７ｂ、第３列（第一の列）には９個
の発光ダイオード３７ｃが配置されている。反射部材１
６は、白色の樹脂からなるものであり、略長方形の筒状
となっている。反射部材１６は、照明手段１７側に形成
された第一の開口部３８と、液晶表示素子１６側に形成
された第二の開口部３９とを有している。The lighting means 17 includes a hard wiring board 36 and a plurality of light emitting diodes 37 connected to the hard wiring board 36.
a, 37b and 37c (point light sources). The light-emitting diodes 37a, 37b, and 37c are arranged in three horizontal rows close to each other. Nine light-emitting diodes 37a are arranged in a first row (first row), and are arranged in a second row (second row). Are arranged with eight light emitting diodes 37b, and nine light emitting diodes 37c are arranged in the third row (first row). Reflective member 1
Numeral 6 is made of a white resin and has a substantially rectangular cylindrical shape. The reflection member 16 has a first opening 38 formed on the lighting unit 17 side and a second opening 39 formed on the liquid crystal display element 16 side.
【００１２】反射部材１６の内周面は、傾斜反射面４０
ａ，４０ｃ（第一の反射面）、反射面４０ｂ（第二の反
射面）及び反射面４１を有しており、傾斜反射面４０
ａ，４０ｃは、光軸Ａに対して傾斜している。反射面４
０ｂ，４１は、光軸Ａに平行となっている。傾斜反射面
４０ａは第１列の発光ダイオード３７ａ、反射面４０ｂ
は第２列の発光ダイオード３７ｂ、傾斜反射面４０ｃは
第３列の発光ダイオード３７ｃに夫々対応する位置に設
けられており、反射面４０ｂは、傾斜反射面４０ａ，４
０ｃから段状に突出している。反射部材１６は、反射面
４１が上下に、傾斜反射面４０ａ，４０ｃ及び反射面４
０ｂが左右になるように液晶表示器１４内に配置され
る。The inner peripheral surface of the reflecting member 16 has an inclined reflecting surface 40.
a, 40c (first reflecting surface), a reflecting surface 40b (second reflecting surface) and a reflecting surface 41;
a and 40c are inclined with respect to the optical axis A. Reflective surface 4
0b and 41 are parallel to the optical axis A. The inclined reflecting surface 40a includes a first row of light emitting diodes 37a and a reflecting surface 40b.
Are provided at positions corresponding to the second row of light emitting diodes 37b and the inclined reflecting surface 40c, respectively, and the reflecting surface 40b is provided at the inclined reflecting surfaces 40a,
It protrudes stepwise from 0c. The reflecting member 16 has a reflecting surface 41 up and down, inclined reflecting surfaces 40a and 40c and a reflecting surface 4.
It is arranged in the liquid crystal display 14 so that 0b is left and right.
【００１３】図８及び図９は第二実施形態を示す図であ
る。第二実施形態は、反射部材４２が異なるだけであ
り、他の構成は第一実施形態と同一である。反射部材４
２は、ポリカーボネート等の透光性樹脂からなるもので
あり、照明手段１７側の入光面４３と、液晶表示素子１
６側の出光面４４とを有している。FIGS. 8 and 9 show a second embodiment. The second embodiment differs from the first embodiment only in the reflection member 42, and the other configuration is the same as the first embodiment. Reflective member 4
Numeral 2 is made of a light-transmitting resin such as polycarbonate.
And a light-emitting surface 44 on the sixth side.
【００１４】また、反射部材４２は、傾斜反射面４５
ａ，４５ｃ（第一の反射面）、反射面４５ｂ（第二の反
射面）及び反射面４６を有しており、傾斜反射面４５
ａ，４５ｃは、光軸Ａに対して傾斜している。反射面４
５ｂ，４６は、光軸Ａに平行となっている。傾斜反射面
４５ａは第１列の発光ダイオード３７ａ、反射面４５ｂ
は第２列の発光ダイオード３７ｂ、傾斜反射面４５ｃは
第３列の発光ダイオード３７ｃに夫々対応する位置に設
けられており、反射面４５ｂは、傾斜反射面４５ａ，４
５ｃから段状に凹んでいる。The reflecting member 42 has an inclined reflecting surface 45.
a, 45c (first reflecting surface), a reflecting surface 45b (second reflecting surface), and a reflecting surface 46;
a, 45c are inclined with respect to the optical axis A. Reflective surface 4
5b and 46 are parallel to the optical axis A. The inclined reflecting surface 45a includes the first row of light emitting diodes 37a and the reflecting surface 45b.
Are provided at positions corresponding to the second row of light emitting diodes 37b and the inclined reflecting surface 45c, respectively, and the reflecting surface 45b is provided at the inclined reflecting surfaces 45a and 45c.
It is recessed stepwise from 5c.
【００１５】第一，第二実施形態によれば、発光ダイオ
ード３７ａ，３７ｂ，３７ｃの光が反射部材１６，４２
の傾斜反射面４０ａ，４０ｃ，４５ａ，４５ｃ及び反射
面４０ｂ，４１，４５ｂ，４３により反射されるので、
観察者の目の位置が光軸の上または下に外れている場合
であっても、虚像Ｖを一様な明るさで視認することがで
きる。また、第二の反射面４０ｂ，４５ｂが第２列の発
光ダイオード３７ｂに近接しているため、第二の反射面
４０ｂ，４５ｂで発光ダイオード３７ｂが発した光を反
射させることができ、第２列の発光ダイオード３７ｂの
外側領域が、他の領域に比較して暗くなる虞がなく、虚
像Ｖが一様な明るさになる。According to the first and second embodiments, the light of the light emitting diodes 37a, 37b, 37c is reflected by the reflecting members 16, 42.
Are reflected by the inclined reflecting surfaces 40a, 40c, 45a, 45c and the reflecting surfaces 40b, 41, 45b, 43 of
Even when the position of the observer's eyes is off or above the optical axis, the virtual image V can be visually recognized with uniform brightness. Further, since the second reflecting surfaces 40b and 45b are close to the light emitting diodes 37b in the second row, the light emitted from the light emitting diodes 37b can be reflected by the second reflecting surfaces 40b and 45b. There is no possibility that the area outside the light emitting diodes 37b in the row becomes darker than other areas, and the virtual image V has uniform brightness.
【００１６】なお、第二実施形態の如く反射部材４２を
透光性樹脂にて形成しても良いが、発光ダイオード３７
ａ，３７ｂ，３７ｃの光の一部が傾斜反射面４５ａ，４
５ｃ及び反射面４５ｂ，４３で反射されないで透過する
ため、第一実施形態の如く筒状の反射部材１６が好まし
い。また、各反射面４０ａ，４０ｃ，４５ａ，４５ｃ４
０ｂ，４１，４５ｂ，４３の角度は、発光ダイオード３
７ａ，３７ｂ，３７ｃの数、液晶表示素子１５の大き
さ、発光ダイオード３７ａ，３７ｂ，３７ｃと液晶表示
素子１５の間隔等により適宜設定されるものであり、各
実施形態に限定されるものではなく、例えば、反射面４
０ｂ，４１，４５ｂ，４３も傾斜させても良い。Although the reflecting member 42 may be formed of a translucent resin as in the second embodiment, the light emitting diode 37
a, 37b and 37c are partially reflected by the inclined reflecting surfaces 45a and 45a.
The cylindrical reflecting member 16 as in the first embodiment is preferable because the light is transmitted without being reflected by the reflection surface 5c and the reflection surfaces 45b and 43. Further, each of the reflection surfaces 40a, 40c, 45a, 45c4
The angles of 0b, 41, 45b, and 43 correspond to the light emitting diode 3
The number is set as appropriate according to the number of 7a, 37b, 37c, the size of the liquid crystal display element 15, the distance between the light emitting diodes 37a, 37b, 37c and the liquid crystal display element 15, and is not limited to each embodiment. For example, the reflection surface 4
0b, 41, 45b and 43 may also be inclined.
【００１７】[0017]
【発明の効果】本発明は、透過型表示素子と、前記透過
型表示素子を照明する照明手段と、前記透過型表示素子
と前記照明手段の間に配設された反射部材と、を有する
表示装置であって、前記照明手段は、少なくとも第一の
列及び第二の列で配置された複数の点状光源を有し、前
記反射部材は、前記第一の列に対応する第一の反射面
と、前記第二の列に対応する前記第一の反射面から突出
した第二の反射面と、を有するものであり、第二の列の
点状光源から第二の反射面の距離を適宜設定することが
でき、透過型表示素子を一様な明るさで照明することが
できる。According to the present invention, there is provided a display having a transmissive display element, illuminating means for illuminating the transmissive display element, and a reflection member disposed between the transmissive display element and the illuminating means. The apparatus, wherein the illuminating means has a plurality of point light sources arranged in at least a first row and a second row, and wherein the reflecting member has a first reflection corresponding to the first row. Surface, and a second reflecting surface protruding from the first reflecting surface corresponding to the second row, the distance of the second reflecting surface from the point light sources in the second row. It can be set as appropriate, and the transmissive display element can be illuminated with uniform brightness.
【図１】 本発明の第一実施形態を示す反射部材のＡ
−Ａ断面図。FIG. 1 illustrates a reflection member A according to a first embodiment of the present invention.
-A sectional drawing.
【図２】 同上実施形態を示す車両の側面図。FIG. 2 is a side view of the vehicle showing the embodiment.
【図３】 同上実施形態を示すヘッドアップディスプ
レイの断面図。FIG. 3 is a sectional view of the head-up display showing the embodiment.
【図４】 同上実施形態を示す液晶表示素子の拡大断
面図。FIG. 4 is an enlarged cross-sectional view of the liquid crystal display element showing the embodiment.
【図５】 同上実施形態を示す液晶表示装置のＢ−Ｂ
断面図。FIG. 5 is a BB view of the liquid crystal display device showing the embodiment.
Sectional view.
【図６】 同上実施形態を示す液晶表示装置のＣ−Ｃ
断面図。FIG. 6 is a cross-sectional view of the liquid crystal display device according to the embodiment shown in FIG.
Sectional view.
【図７】 同上実施形態を示す反射部材の斜視図。FIG. 7 is a perspective view of a reflecting member showing the embodiment.
【図８】 本発明の第二実施形態を示す反射部材の斜
視図。FIG. 8 is a perspective view of a reflecting member showing a second embodiment of the present invention.
【図９】 同上実施形態を示す反射部材の断面図。FIG. 9 is a cross-sectional view of the reflection member showing the embodiment.
【図１０】 従来例を示す液晶表示装置の側面図。FIG. 10 is a side view of a liquid crystal display device showing a conventional example.
【図１１】 同上従来例を示す液晶表示装置の正面図。FIG. 11 is a front view of a liquid crystal display device showing a conventional example.
【図１２】 同上従来例を示す液晶表示装置の側面図。FIG. 12 is a side view of a liquid crystal display device showing a conventional example.
１４ 液晶表示器（表示装置） １５ 液晶表示素子（透過型表示素子） １６ 反射部材 １７ 照明手段 ３７ａ 発光ダイオード（点状光源） ３７ｂ 発光ダイオード（点状光源） ３７ｃ 発光ダイオード（点状光源） ３８ 第一の開口部 ３９ 第二の開口部 ４０ａ 傾斜反射面（第一の反射面） ４０ｂ 反射面（第二の反射面） ４０ｃ 傾斜反射面（第一の反射面） ４２ 反射部材 ４５ａ 傾斜反射面（第一の反射面） ４５ｂ 反射面（第二の反射面） ４５ｃ 傾斜反射面（第一の反射面） Ａ 光軸 Reference Signs List 14 Liquid crystal display (display device) 15 Liquid crystal display element (transmission type display element) 16 Reflecting member 17 Lighting means 37a Light emitting diode (point light source) 37b Light emitting diode (point light source) 37c Light emitting diode (point light source) 38 One opening 39 second opening 40a inclined reflecting surface (first reflecting surface) 40b reflecting surface (second reflecting surface) 40c inclined reflecting surface (first reflecting surface) 42 reflecting member 45a inclined reflecting surface ( 45b Reflecting surface (second reflecting surface) 45c Inclined reflecting surface (first reflecting surface) A Optical axis
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０２Ｆ 1/13 ５０５ Ｇ０２Ｆ 1/13 ５０５ 1/13357 1/13357 Ｆターム(参考） 2H088 EA02 EA23 HA21 HA28 MA04 MA07 2H091 FA14Z FA17X FA45Z LA18 LA19 MA03 3D044 BA22 BA26 BA27 BB01 BC25 BD02 5G435 AA01 BB12 BB15 BB19 CC09 EE23 EE26 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (Reference) G02F 1/13 505 G02F 1/13 505 1/13357 1/13357 F term (Reference) 2H088 EA02 EA23 HA21 HA28 MA04 MA07 2H091 FA14Z FA17X FA45Z LA18 LA19 MA03 3D044 BA22 BA26 BA27 BB01 BC25 BD02 5G435 AA01 BB12 BB15 BB19 CC09 EE23 EE26
Claims (3)
を照明する照明手段と、前記透過型表示素子と前記照明
手段の間に配設された反射部材と、を有する表示装置で
あって、前記照明手段は、少なくとも第一の列及び第二
の列に配置された複数の点状光源を有し、前記反射部材
は、前記第一の列に対応する第一の反射面と、前記第二
の列に対応する第二の反射面と、を有することを特徴と
する表示装置。1. A display device comprising: a transmissive display element; illumination means for illuminating the transmissive display element; and a reflection member disposed between the transmissive display element and the illumination means. , The illuminating means has a plurality of point light sources arranged in at least a first row and a second row, the reflecting member, a first reflecting surface corresponding to the first row, A second reflecting surface corresponding to the second column.
記反射部材は、前記照明手段側に設けられた第一の開口
部と、前記透過型表示素子側に設けられた第二の開口部
と、を有する筒状であることを特徴とする表示装置。2. The display device according to claim 1, wherein the reflection member has a first opening provided on the illumination unit side and a second opening provided on the transmission type display element side. And a tubular device having:
置において、前記第一の反射面及び前記第二の反射面の
少なくとも一方は、光軸に対して傾斜していることを特
徴とする表示装置。3. The display device according to claim 1, wherein at least one of the first reflection surface and the second reflection surface is inclined with respect to an optical axis. Display device.
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| JP2001094661A JP4264965B2 (en) | 2001-03-29 | 2001-03-29 | Display device |
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|---|---|---|---|
| JP2001094661A JP4264965B2 (en) | 2001-03-29 | 2001-03-29 | Display device |
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| JP4264965B2 JP4264965B2 (en) | 2009-05-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7301699B2 (en) | 2004-01-28 | 2007-11-27 | Denso Corporation | Display device having reflecting member with multiple reflecting surfaces |
| JP2008051910A (en) * | 2006-08-23 | 2008-03-06 | Yazaki Corp | Design superposition display device and display unit for vehicle |
| JP2011088583A (en) * | 2009-10-26 | 2011-05-06 | Nippon Seiki Co Ltd | Illumination device |
| JP2015090407A (en) * | 2013-11-05 | 2015-05-11 | 株式会社バンダイ | Video display device and program |
| WO2016177907A1 (en) * | 2015-05-07 | 2016-11-10 | Valeo Comfort And Driving Assistance | Backlight device, and associated image generation unit, head-up display and vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI485432B (en) * | 2013-12-12 | 2015-05-21 | Au Optronics Corp | Display module and head up display |
-
2001
- 2001-03-29 JP JP2001094661A patent/JP4264965B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7301699B2 (en) | 2004-01-28 | 2007-11-27 | Denso Corporation | Display device having reflecting member with multiple reflecting surfaces |
| JP2008051910A (en) * | 2006-08-23 | 2008-03-06 | Yazaki Corp | Design superposition display device and display unit for vehicle |
| JP2011088583A (en) * | 2009-10-26 | 2011-05-06 | Nippon Seiki Co Ltd | Illumination device |
| JP2015090407A (en) * | 2013-11-05 | 2015-05-11 | 株式会社バンダイ | Video display device and program |
| WO2016177907A1 (en) * | 2015-05-07 | 2016-11-10 | Valeo Comfort And Driving Assistance | Backlight device, and associated image generation unit, head-up display and vehicle |
| FR3038079A1 (en) * | 2015-05-07 | 2016-12-30 | Valeo Comfort & Driving Assistance | BACKLIGHT DEVICE, IMAGE GENERATING UNIT, HEAD DISPLAY AND ASSOCIATED VEHICLE |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4264965B2 (en) | 2009-05-20 |
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