CN2289258Y - LCD back lighting plate - Google Patents
LCD back lighting plate Download PDFInfo
- Publication number
- CN2289258Y CN2289258Y CN 96242540 CN96242540U CN2289258Y CN 2289258 Y CN2289258 Y CN 2289258Y CN 96242540 CN96242540 CN 96242540 CN 96242540 U CN96242540 U CN 96242540U CN 2289258 Y CN2289258 Y CN 2289258Y
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- light
- plate
- light source
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a display device, in particular to an LCD back lighting plate which is mainly composed of a light conducting plate (10), a semi-transparent material plate (20), a reflecting material box (30) and a light source (40). The light conducting plate (10) is arranged between the semi-transparent material plate (20) and the reflecting material box (30). The bottom surface (12) of the light conducting plate (10) is a delaminating wavy thread, and the light source is arranged on one side of the light conducting plate (10). The utility model has the advantages of novel design simple structure, power consumption saving and even luminescence. The color and the brightness which need to be displayed can be regulated according to the requirement.
Description
The utility model relates to a kind of display equipment, specifically is meant a kind of LCD backlight.
In scientific-technical progress continuous today of development, no matter be computing machine, electronic watch, household electrical appliances and sound equipment are progressively popularized in each family, and the demonstration of early stage various machines utilizes LED to realize, however since the electric power that consumes not little, replaced by liquid crystal cell gradually.Liquid crystal cell be a kind of utilize external fields of force such as electric field, magnetic field, heat make liquid crystal at the beginning of phase molecules align state variation become another ordered state, the variation of this molecules align can cause the optical property of liquid crystal photoelectric tube to change, and utilizes this variation principle to come the element of modulation incident light.Therefore liquid crystal cell can utilize battery to be driven because the electric power that consumes is lower for a long time.And but the display nationality of use LCD is shown by the external light of reflection, and very power saving is when the next light source that must use display interior of the unglazed situation in the external world.The light source that uses has three kinds at present: a LED who is to use arranged is as light source, and its shortcoming is to need to use the quantity of LED many, and electric current is big, cost is high; Two are to use cold cathode plate (EL) as light source, light source is a planar light, power consumption is little than the led light source of arranged, light is more even, but use High Level AC Voltage, therefore need transverter and stepup transformer to convert direct current to High Level AC Voltage, complex circuit designs, cost height, and alternating current can be to electric generation electromagnetic interference (EMI) on every side, and light source has only solid color; The 3rd, for cold-cathode tube (CCFT) through the light guide plate be combined into, present this device of all using backlight of large-scale LCD, but need high frequency (35KHZ) high pressure (more than the 300V) to drive.
The purpose of this utility model provides a kind of simple in structure, and light is even, little power consumption, a kind of novel LCD backlight that cost is low.
Design proposal scheme of the present utility model is, it mainly is made up of light guide plate, trnaslucent materials plate, reflectorized material box and light source, light guide plate is the material of a printing opacity, the end face of light guide plate is a tabular surface, light guide plate places between trnaslucent materials plate and the reflectorized material box, the basal surface of light guide plate is layer wave lines gradually, and the reflectorized material box contains around the light guide plate and basal surface, and light source places light guide plate one side.
Below, in conjunction with the accompanying drawings the utility model is described in detail.
Fig. 1 is the utility model embodiment 1 perspective exploded view;
Fig. 2 is the sectional view after the utility model embodiment 1 combination;
Fig. 3 is the utility model embodiment 2 perspective exploded view;
Fig. 4 is the sectional view after the utility model embodiment 2 combinations.
Among the above-mentioned figure, 10-light guide plate, 11-end face, 12-basal surface, 20-trnaslucent materials plate, 3-reflectorized material box, 40-light source.
Embodiment 1:
Referring to Fig. 1, the utility model is mainly by light guide plate (10), trnaslucent materials plate (20), reflectorized material box (30) and light source (40) are formed, light guide plate (10) is a light-permeable material, the end face (11) of this light guide plate (10) is a tabular surface, and basal surface (12) has and the mutually perpendicular gradually layer of light transmit direction wave lines; Trnaslucent materials plate (20) is stacked and placed on the light guide plate (10), has equal light action; Reflectorized material box (30) contains light guide plate (10) and reaches basal surface (12) all around, reflects with the light that will pass light guide plate (10); Light source (40) places light guide plate (10) one sides, can be one or several light emitting diodes or miniature bulb, but and nationality by the light emitting diode or the miniature bulb of many different colours of configuration, to mix required light source colour and brightness.
Referring to Fig. 2, trnaslucent materials plate (20), light guide plate (10), reflectorized material box (30) is stacked layer by layer, and light source (40) places in reflectorized material box (30) the limit groove of light guide plate (10) one sides.After this structural design can make light that light source (40) sent via the basal surface (12) of light guide plate (10) gradually layer wave lines and reflectorized material box (30) reflection vertical with light, produce uniform planar light, and transmit by light guide plate (10) end face (11), be equipped with one deck trnaslucent materials plate (20) on the end face (11) of light guide plate (10), play equal light action by trnaslucent materials plate (20), can make printing opacity more even.
Embodiment 2:
Referring to Fig. 3, Fig. 4, on the basis of embodiment 1, the basal surface (12) of light guide plate (10) is made one gradually to the inclined-plane that end face (11) tilts, this inclined-plane has and the mutually perpendicular gradually layer of light transmit direction wave lines.
Embodiment 3:
On the basis of embodiment 1, embodiment 2, the end face (11) of light guide plate (10) is done the atomizing processing replace trnaslucent materials plate (20), can reach equal light effect equally.
The utility model design is novel, simple in structure, and the power consumptive province is luminous even, can allocate required Show Color and brightness as required.
Claims (4)
1, a kind of LCD backlight, it is characterized in that it mainly is made up of light guide plate (10), trnaslucent materials plate (20), reflectorized material box (30) and light source (40), light guide plate (10) is the material of a printing opacity, the end face (11) of light guide plate (10) is a tabular surface, light guide plate (10) places between trnaslucent materials plate (20) and the reflectorized material box (30), the basal surface of light guide plate (12) is layer wave lines gradually, reflectorized material box (30) contains light guide plate (10) and reaches basal surface (12) all around, and light source (40) places light guide plate (10) one sides.
2, LCD backlight according to claim 1 is characterized in that doing atomizing at the end face (11) of light guide plate (10) handles, and replaces trnaslucent materials plate (20).
3, LCD backlight according to claim 1 and 2, the basal surface (12) that it is characterized in that light guide plate (10) also can make one gradually to the inclined-plane that light guide plate (10) end face (11) tilts, and has on this inclined-plane and the mutually perpendicular gradually layer of light transmit direction wave lines.
4, LCD backlight according to claim 1 it is characterized in that light source (40) can be one or several light emitting diodes or miniature bulb, but nationality is by the light emitting diode or the miniature bulb of many different colours of configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242540 CN2289258Y (en) | 1996-12-02 | 1996-12-02 | LCD back lighting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242540 CN2289258Y (en) | 1996-12-02 | 1996-12-02 | LCD back lighting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2289258Y true CN2289258Y (en) | 1998-08-26 |
Family
ID=33916603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96242540 Expired - Fee Related CN2289258Y (en) | 1996-12-02 | 1996-12-02 | LCD back lighting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2289258Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310121C (en) * | 2002-08-19 | 2007-04-11 | 富士通株式会社 | Contact type board |
| CN1329770C (en) * | 2003-09-19 | 2007-08-01 | 夏普株式会社 | Light guide body, lighting device, liquid crystal display device, and electronic device |
-
1996
- 1996-12-02 CN CN 96242540 patent/CN2289258Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310121C (en) * | 2002-08-19 | 2007-04-11 | 富士通株式会社 | Contact type board |
| US7489304B2 (en) | 2002-08-19 | 2009-02-10 | Fujitsu Limited | Touch panel device |
| CN1329770C (en) * | 2003-09-19 | 2007-08-01 | 夏普株式会社 | Light guide body, lighting device, liquid crystal display device, and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QUAN XING TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHEN XING |
|
| CP03 | Change of name, title or address |
Address after: County Road nine Taiwan jhubei City, Hsinchu County Road 80 3 floor Patentee after: Quanxing Development Science and Technology Co., Ltd. Address before: No. 18, old harbor, Hsinchu, Taiwan Patentee before: Chen Xing |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |