JPS59107378A - Liquid crystal display unit - Google Patents
Liquid crystal display unitInfo
- Publication number
- JPS59107378A JPS59107378A JP57216877A JP21687782A JPS59107378A JP S59107378 A JPS59107378 A JP S59107378A JP 57216877 A JP57216877 A JP 57216877A JP 21687782 A JP21687782 A JP 21687782A JP S59107378 A JPS59107378 A JP S59107378A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display device
- light source
- atmosphere
- 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分肌〕
この発明は４（ｒ黒表示装置にかかり、特に液晶表示器
の背面ないし４ｊｌｊ面に照明７’ｌ＋を設けた液晶表
示装置の照明部における発熱のあるつ゛ｒ置原の冷力１
構造に１めｌする。[Detailed Description of the Invention] [Technical aspects of the invention] The present invention relates to a 4(r) black display device, particularly in the lighting section of a liquid crystal display device in which a lighting device 7'l+ is provided on the back surface or 4jlj surface of the liquid crystal display device. Cooling power of a place with fever 1
Take a look at the structure.
照明部ＩＳを有する液晶多水装置ｒイは一般に第１１シ
１および第２図に示す石イ弓、！Ｌになっている。ｌ！
：（ｌにおいて、（１）は液晶表示器でそのサイド背面
に小フ（す白熱電球＋２１ 、 ｆ２＋・・・を光源に
俯え、ｎ″１■而はこの光源からの光を液詳衣示器（１
）に均一に入射はぜる１社めに導）Ｙ、オル（３）を介
在させている。−また、光ｊ、ｊｌ’、：！町からの光
は不動に液晶表示器の照明に１１Ｆわれるように、光源
の白熱′電球は導光板（３）に面する背面を除き反射＆
（４）で囲繞させている。そして、上扉：は、Ｊｌｌ：
＆ （５ｉ上に液晶保持金具（６）等を用いて取着さ
カフ、フらにこれらがケース（力に組込まｉｌて１金体
（８）に装着きれることが一般的である。なお、第２図
に示でわるｔ９１は液晶表示器の電極への配線体である
。A liquid crystal polyhydric device having an illumination section IS is generally a crossbow shown in FIGS. 11 and 2. It is L. l!
:(In l, (1) is a liquid crystal display with a small screen on the back side of it. Look down at an incandescent bulb +21, f2+... as a light source, and n''1 is a liquid crystal display that displays light from this light source.) Indicator (1
), Y and O (3) are interposed in the first company that uniformly enters the incident light. -Also, light j, jl', :! In order to ensure that the light from the town is constantly reflected by the LCD display, the incandescent light bulbs used as the light source are reflective and non-reflective, except for the back facing the light guide plate (3).
It is surrounded by (4). And the upper door: ha, Jll:
& (It is common that the cuff is attached to the 5i using a liquid crystal holding fitting (6), etc., and these can be attached to the case (il) and attached to the metal body (8). t91 shown in FIG. 2 is a wiring body connected to the electrode of the liquid crystal display.
液晶表示は液晶の分極現象を利用して表示されるが、あ
る一定温度以上に々ると分極され々〈なり表示できなく
々る。この温度は液晶の１Ｍ１類によっても異なるが、
６０〜８０℃以上である。表示できる範囲を動作ｇＡ度
範囲）：称するが、照明装置をイハ１１えるとき、腋晶
渦度は室温の影響に加えて光源からの熱伝導、ふく射に
よる影響を受け、結果とし７てｌｉ＃作可ｆ＋’Ｆ（な
室温の範囲を狭めることに力る。Liquid crystal displays use the polarization phenomenon of liquid crystals to display images, but if the temperature exceeds a certain level, the liquid crystals become polarized and cannot be displayed. This temperature varies depending on the 1M1 type of liquid crystal, but
The temperature is 60 to 80°C or higher. The displayable range is called the operating gA degree range), but when the lighting device is heated, the axillary vorticity is affected by the room temperature as well as heat conduction and radiation from the light source, and as a result, the axillary vorticity is We will focus on narrowing the range of room temperature that can be produced.
光源の影響による液晶部の温度上昇はＡ・°：゛ｊ造に
よっても異なるが、５（１℃以上に達することもある。The temperature rise in the liquid crystal section due to the influence of the light source varies depending on the structure, but can reach 5 (1°C or more).
この時液晶バＩＸの動作渦Ｊ友範囲が７０”Ｃであわば
、室温が２０°Ｃ以上では表示でき々いという重大な問
題がある。このような液晶表示器の温１埃上昇は酵晶表
示装置＾°全体の４ＩＣ）造に問題があるためである。At this time, there is a serious problem that the operating vortex range of the liquid crystal display is 70"C, so it is impossible to display the image when the room temperature is 20°C or higher. Such an increase in the temperature of the liquid crystal display is due to fermentation. This is because there is a problem with the 4IC) structure of the entire crystal display device.
７＋＋品茨示器の温度上昇を防ぐためには光源より液晶
表示器に１゛るｉ！＝！１．を遮断し、その熱を熱容゛
１トの大きい部材へ放出させるか、光源より液晶表示器
が受けた塾舎液晶表示器の表面から熱容量の太きい部材
へ放出させることが８認である。［７かし、第１図およ
び第２図に示すように、液晶表示器は一般に基板（プリ
ント配Ｈ７ＪＬ板）−に［ｌｉ４’ｉ明装置とともに一
体的に組立てらね１、それを１２体、ケース等に糾込ん
でいる。このよりなＨ，Ｈ造の時、液晶表示器に至る熱
を７゛１、’！：１（Ｉｒする反射板は一片に比較的小
型で熱容量の小きいものになり、液晶表示器表面からの
ＩＪｋ熱は液晶がカラスであるために、液晶表示器自体
を強くケースサだ１は１４体に密着させることができず
効果が少ない欠点がある。この対重として第３図に示す
ようにＪ又身１彷（４）に孔（９＋ 、 ＋９１・・・
全段は光源周囲の過熱した雰囲気をその対流によって放
出させる手段がある。しかし、この方法汀光が外部へ洩
れて照明効果ｆＸ、低減烙せる欠点がある。In order to prevent the temperature of the 7++ quality indicator from rising, there should be a 1 degree difference between the light source and the liquid crystal display. =! 1. It is approved that the heat should be released to a member with a large heat capacity, or should be released from the surface of the school liquid crystal display, which is received by the liquid crystal display from the light source, to a member with a large heat capacity. . [7 However, as shown in Figs. 1 and 2, the liquid crystal display is generally assembled on a board (printed wiring board) together with the lighting device, and is assembled in 12 units. , cases, etc. When this H, H structure is used, the heat reaching the liquid crystal display is 7゛1,'! :1 (Ir reflecting plate is relatively small and has small heat capacity in one piece, and since IJk heat from the surface of the liquid crystal display is a glass liquid crystal, the liquid crystal display itself must be strongly case supported.1 is 14 It has the disadvantage that it cannot be closely attached to the body and is less effective.As a counterweight to this, as shown in Figure 3, holes (9+, +91...
All stages have means for discharging the superheated atmosphere around the light source by convection. However, this method has the disadvantage that the glaring light leaks to the outside, reducing the illumination effect fX.
こゲ）発明は照明＋’＋ＩＩを有する液晶表示器ｆ？ｊ
における照明部の発熱を廟ｐｊに外部に放出させること
によって、上記従来の液晶表示器１６における問題点の
改良をはかるものである。The invention is a liquid crystal display device with illumination +'+II. j
The problem with the conventional liquid crystal display 16 described above is improved by causing the heat generated by the illumination section to be radiated to the outside through the temple pj.
この発明７ｄ液晶表示器の背面ないしくＲ１１而Ｋ Ｊ
！（ｉ １Ｍ部を設゛けた透過ｊ９．ｌＪまたは半透過
型の液晶５表示装置において、照明部における発熱のあ
る光源に強？Ｎｊ１通９１１手段を設けたものであって
、この手段として（１） エヤポンプによる外部雰囲
気の送入。The back of this invention 7d liquid crystal display or R11K J
! In a transmissive or semi-transmissive liquid crystal display device equipped with a 1M section, a strong means is provided for the light source that generates heat in the illumination section. ) Introducing external atmosphere using an air pump.
（１１） エヤポンプによる光源周囲の雰囲気の吸引
排出。(11) Suction and exhaust of the atmosphere around the light source using an air pump.
（ｉｉｉ ） ファンによる外部雰囲気の送入。(iii) Supply of external atmosphere using a fan.
（ＩＶ） この液晶表示装置を装着１．た車輛の走行
による外部雰囲気の出入。(IV) Attaching this liquid crystal display device 1. External atmosphere enters and exits due to the movement of vehicles.
のいずれかによることを特徴とする。It is characterized by one of the following.
次にこの発明の実施例につき図面を参照して吐赤用に説
明する。Next, an embodiment of the present invention will be explained with reference to the drawings.
まず、エヤポンプにより外部雰囲気を送入するものは第
４図に示すように、エヤポンプＬｌｌ）を設け、これを
照明部に導管（１３で送入する。すなわち、導管０功は
送気・ｔＩ−となり、光源の近傍の反射板（４）Ｋ開口
し、この開口（１２□１）から外部雰囲気を送入して照
明７ｆｌｌの熱し／こ雰囲気と置換させる。First, as shown in Fig. 4, an air pump for supplying external atmosphere is provided with an air pump (Lll), which is supplied to the lighting section through a conduit (13). Therefore, an opening is opened in the reflector plate (4) K near the light source, and external atmosphere is introduced through this opening (12□1) to replace the heated atmosphere of the illumination 7fl.
次の実施例は、上ＥｉｌＸエヤポンプ（１１）を逆にノ
１４いて導管＋１２１を吸気′σ七なし、光）ｊｉ；ｊ
の雰囲気を開口（１２ａ）から吸引し排出することによ
って’７七、霊の外用′、雰囲気Ｋ ｊｉ換させるもの
である。In the next example, the upper EilX air pump (11) is reversed and the conduit +121 is used to inhale
By suctioning and discharging the atmosphere from the opening (12a), the atmosphere is changed.
、さらに次の実施例は第５図に示すように、照明部、！
ＬＦに光源の近傍にファンｔ１３＋を設け、外部雰囲気
を送入する。このファンの効果をさらに壱効にする／ｒ
、め要部に外囲−１〜るケース（圓を設けると一層効果
がある。, In the next embodiment, as shown in FIG. 5, the illumination section,!
A fan t13+ is provided in the LF near the light source to supply external atmosphere. Make this fan even more effective/r
, a case where a circle is provided at the main part (it is even more effective).
次の実施、例は均’ｙ、 ５図に示すように、液晶表示
装置１が搭載されている車輛ｕ：力の走行（走行方向を
図中にイ岐偽１矢印で示す）により、その前面に空包増
入口（１６ａ ）を開口した導管（１６ｈ）を液晶表示
器自体で導き、第７図に示すように光ぞ岸のＩＶ、 ｆ
ｉｌ板（４）に開口している。このため、光７１ｉｔ都
の雰囲気は送入された外部雰囲気でＩ′Ｉり換され冷却
される。The following example is an example. The conduit (16h) with the empty cartridge inlet (16a) opened on the front is guided by the liquid crystal display itself, and the light is connected to the IV, f as shown in Figure 7.
It opens to the IL plate (4). Therefore, the atmosphere of the light 71 is replaced by the introduced external atmosphere and cooled.
この発明によると、ｐ）′米のものに比し液晶表示器の
昇温を約１／２ Ｋ ’＋Ｊ−ｊ減させることができる
。すなわち、表示装晶全体の構！Ｎ７により昇１昌の絶
対値は異なるが、例えば、第１図に示す様な構造で必要
な明るさを得るために光源の種類や数量をγＪとめ、こ
のときの昇温か５０℃となる場合、この発明の構ｊ名で
け昇温を２０〜２５°Ｃに抑えることができプと。According to this invention, the temperature rise of the liquid crystal display device can be reduced by about 1/2 K'+J-j compared to the p)' American one. In other words, the structure of the entire display crystal! The absolute value of 1 sho will differ depending on N7, but for example, in order to obtain the necessary brightness with a structure as shown in Figure 1, the type and quantity of light sources are set to γJ, and the temperature rise at this time is 50°C. The structure of this invention makes it possible to suppress the temperature rise to 20 to 25°C.
さらに、この発明は実施が簡単で兜価ｙ ；２ ｒｓで
きる利（’１もある。Furthermore, the present invention is easy to implement and has the advantage that the helmet value y;2 rs can be achieved ('1).
第１図は従来の液晶表示装置の断面図、ｆｐ ２図はＮ
Ｓ１図の側面図、第３図は照明部の一部のＷｔ視図、甲
、４図以降幻この発明の実施例にかかり、第４１２１は
第１および第２の実施例の一部の断面１ツ１、第５図１
−ｊ第３の・実施例の一部の断面図、第６ｐ；＜ｌ ：
ｉ’ｒよび第７図は第４の実施例を示し、第６図は構成
の概要を説５明するだめの上面図、第７図は一部の断面
図を示す。
１ 液晶表示器
２ 照明部の光源
３ 照明部の導光板
４ 反射板
１１ エヤポンプ
＋２．１６ｂ 導管
１３ ファン
１５ 車辿
１６ａ ４呂気月ソ入 口Ｉ代理
人 弁）：１１士 其 上 −男
第 １ 図
第 ２１４
第 ３ 図
第 ・・１ 図
第 ６ 図Figure 1 is a cross-sectional view of a conventional liquid crystal display device, fp, and Figure 2 is N.
Figure S1 is a side view, Figure 3 is a Wt view of a part of the illumination section, Figure 4 and subsequent figures show embodiments of the present invention, and Figure 4121 is a cross section of a part of the first and second embodiments. 1 1, Figure 5 1
-j Partial cross-sectional view of the third embodiment, 6th p;<l:
FIG. 7 shows a fourth embodiment, FIG. 6 is a top view of the device for explaining the outline of the structure, and FIG. 7 is a partial cross-sectional view. 1 LCD display 2 Light source of the lighting section 3 Light guide plate of the lighting section 4 Reflector plate 11 Air pump +2.16b Conduit 13 Fan 15 Car trace 16a 4. 214 Figure 3...Figure 1 Figure 6
Claims (5)
部を設け／と４、？晶表示装ｆｆｆ７において、照明部
における４く熱のある光源に強制通気手段を設けたこ＜
！ｌ：を特徴とする液晶表示器ｆｉ′。(1) In the case where the back side of the liquid crystal display is not provided, forced ventilation means is provided for the hot light source in the illumination part.
! A liquid crystal display device fi' characterized by:
送入によることを特徴とする特許請求の範囲第１ｊｆ１
記載の液晶表示装置。(2) Claim 1jf1 characterized in that the forced ventilation means is based on supplying A part of atmosphere by an air pump.
The liquid crystal display device described.
囲の勢、囲気の吸引によることを特徴とする特許請刃（
の範囲第１項記載の（Ｉｌ、 ａ表示装置ぺ。(3) Light source J^1 whose forced ventilation means is an air pump
A patented blade (
(Il, a Display device Pe) as described in item 1.
囲気の送入によることを特徴とする特許請求のイ１１λ
囲第１項「；［；載の液晶表示装置。(4)! A11λ of the patent claim, characterized in that the i'li ventilation control means is based on the introduction of externally drawn air by a fan.
The liquid crystal display device described in item 1 of the box “;[;
車輛の走行による外部雰囲気圧入によることを特徴とす
る特イ′■−請求の範囲第１項記載の液晶表示装置。(5) The liquid crystal display device according to claim 1, wherein the forced ventilation means is by injecting external atmosphere by driving a vehicle in which the liquid crystal display device is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57216877A JPS59107378A (en) | 1982-12-13 | 1982-12-13 | Liquid crystal display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57216877A JPS59107378A (en) | 1982-12-13 | 1982-12-13 | Liquid crystal display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59107378A true JPS59107378A (en) | 1984-06-21 |
Family
ID=16695308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57216877A Pending JPS59107378A (en) | 1982-12-13 | 1982-12-13 | Liquid crystal display unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59107378A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63179387A (en) * | 1987-01-21 | 1988-07-23 | 獅子野 惠嗣 | Liquid crystal tv |
| JPH01289912A (en) * | 1988-05-17 | 1989-11-21 | Seiko Epson Corp | Display device |
| US8854164B2 (en) | 2006-11-27 | 2014-10-07 | Robert Bosch Gmbh | Pressure-regulating valve |
-
1982
- 1982-12-13 JP JP57216877A patent/JPS59107378A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63179387A (en) * | 1987-01-21 | 1988-07-23 | 獅子野 惠嗣 | Liquid crystal tv |
| JPH01289912A (en) * | 1988-05-17 | 1989-11-21 | Seiko Epson Corp | Display device |
| US8854164B2 (en) | 2006-11-27 | 2014-10-07 | Robert Bosch Gmbh | Pressure-regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104905758B (en) | Novel medical endoscope all-in-one | |
| CN105717706A (en) | Double-sided backlight source and double-sided display device | |
| CN208607469U (en) | A kind of quantum dot backlight module being easily installed | |
| JPS59107378A (en) | Liquid crystal display unit | |
| CN209151290U (en) | A kind of novel projector structure | |
| CN204863076U (en) | Medical endoscope integrated device | |
| JPH0766122B2 (en) | Transmissive liquid crystal display device | |
| CN207895202U (en) | A kind of backlight module | |
| CN204839415U (en) | Novel medical endoscope all -in -one | |
| CN209992774U (en) | Semi-transparent display device's heat dissipation conduction system | |
| CN106444147A (en) | LCD backlight module convenient to demount | |
| CN210776099U (en) | High-liquid-permeability crystal display module | |
| CN207731054U (en) | A kind of backlight module | |
| CN218647271U (en) | Side-light type LED backlight source | |
| CN214122623U (en) | Eye-protection LED liquid crystal display television backlight | |
| JP3055129B2 (en) | Transmissive liquid crystal display | |
| CN220441140U (en) | Novel heat radiation structure of TFT | |
| CN208255609U (en) | Projector | |
| CN220436451U (en) | Backlight module capable of accelerating heat dissipation of display screen | |
| JPS59107379A (en) | Liquid crystal display unit | |
| WO2017152583A1 (en) | Rear-view mirror system with display screen evenly enhancing backlight | |
| CN2904036Y (en) | Improved projector liquid crystal cooling mechanism with liquid crystal plate closed cooling duct | |
| CN220188845U (en) | Off-axis projector with sealing and heat dissipation functions | |
| CN219758623U (en) | High-light-efficiency side-entry type light guide plate-free LED lamp bead structure | |
| CN218383572U (en) | Back plate, backlight module and display |