CN2518126Y - Back light source structure applied to passive display - Google Patents
Back light source structure applied to passive display Download PDFInfo
- Publication number
- CN2518126Y CN2518126Y CN 02201329 CN02201329U CN2518126Y CN 2518126 Y CN2518126 Y CN 2518126Y CN 02201329 CN02201329 CN 02201329 CN 02201329 U CN02201329 U CN 02201329U CN 2518126 Y CN2518126 Y CN 2518126Y
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- back side
- light sources
- configurations
- passive
- type display
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Abstract
The utility model aims to design a reverse side light source structure which is applied to an inactive mode display. The reverse side light source structure comprises a plurality of luminescence sources which are used on the back surface of the inactive mode display and used to provide the required light ray when the inactive mode display operates the display action, and a back cover casing body which is fixed and connected to the back surface of the inactive mode display, positions and covers the luminescence sources. A plurality of protuberances is arranged on the surface of the back cover casing body to strengthen the heat radiation efficiency as well as increase the intensity of the structure.
Description
(1) technical field
The utility model relates to a kind of back side configurations of light sources, refers to the back side configurations of light sources of a kind of passive-type display (passive display) especially, for example LCD (Liguid Crystal Display, back side configurations of light sources LCD).
(2) background technology
Progress day by day along with manufacturing technology, passive-type display (passive display) is subjected to consumer's favor gradually and becomes the main flow in market gradually, especially LCD (LCD) has been a kind of passive-type display element that is widely used, and its principle of work mainly utilizes electric field to change the ordered state of liquid crystal, make the light that passes through liquid crystal produce the phenomenon that route changes, and then realize the display effect that light and shade changes.
See also Fig. 1, it is an element circuit block schematic diagram of a Thin Film Transistor-LCD (TFTLCD), wherein thin film transistor (TFT) 11 is to be subjected to the control of sweep trace voltage Vs and to switch between conducting state and closed condition, data line voltage Vd then is added to the pixel electrode 131 of described liquid crystal 12 both sides when thin film transistor (TFT) 11 is in conducting state, between the common electrode 132, in order to change the ordered state of described liquid crystal 12, and then control the printing opacity degree of described liquid crystal 12, the intensity that the light that makes back side light source 14 be sent arrives in beholder's eye changes, in order to reaching the display effect that light and shade changes, storage capacitors 15 is then in order to the characteristic of reinforcing element.
And learn by above-mentioned explanation, the pixel of LCD itself also can't be luminous, and the light that is conveyed to the beholder is sent by back side light source fully, therefore the picture quality of LCD is subjected to the quality influence of back side light source very big, see also Fig. 2, it is the profile construction synoptic diagram that traditional back light is used in combination with display pannel 20, back light mainly is respectively by 21 formations of several cold cathode fluorescent lamp pipes (CCFL), and covers the rear that housing 23 is fixed in described fluorescent tube display pannel 20 via a back of the body.And be the brightness that can improve back side light source, the fabricator there's no one who doesn't or isn't reaches the demand of brightness with the quantity that increases cold cathode fluorescent lamp pipe (CCFL) 21, but the back of the body lid housing of being finished with iron or aluminium in the existing means 23, because of considering that brightness can't be provided with louvre and dispel the heat, therefore all has quite serious heat dissipation problem, and too high working temperature will cause the easy damage of back side light source and display pannel, have a strong impact on the life-span of product.Therefore, when LCD during towards large-sized trend development, the disappearance of above-mentioned poor heat radiation will be more serious, therefore how to improve this disappearance and propose one and be different from form now, and more being applicable to a back side configurations of light sources of LCD, is for developing a free-revving engine of the present utility model.
(3) utility model content
Thereby the purpose of this utility model provides a kind of back side configurations of light sources that is used for the passive-type display of radiating efficiency height high life.
The back side of the present utility model configurations of light sources is applied to a passive-type display, and it comprises: several illuminating sources are arranged at the back side of described passive-type display, required light when providing described passive-type display to carry out display action; And one the back of the body cover housing, be fixedly attached to the back side of described passive-type display, with described illuminating source location and coat wherein, the surface of described back of the body lid housing has several protrusions to strengthen the intensity of its radiating efficiency and its structure of increase.
According to above-mentioned conception, the described passive-type display that back side configurations of light sources is suitable for is a LCD.
According to above-mentioned conception, the described LCD that back side configurations of light sources is suitable for is a Thin Film Transistor-LCD.
According to above-mentioned conception, illuminating source described in the configurations of light sources of the back side is several linear light sources that be arranged in parallel.
According to above-mentioned conception, the linear light source that be arranged in parallel described in the configurations of light sources of the back side is several cold cathode fluorescent lamp pipes (CCFL).
According to above-mentioned conception, it is chosen from Fe or aluminium that the back of the body described in the configurations of light sources of the back side covers the material of housing.
According to above-mentioned conception, it is several rib-like protrusions that are arranged in parallel that the back of the body described in the configurations of light sources of the back side covers the described protrusion that the surface had of housing.
According to above-mentioned conception, the described back of the body lid housing that has described rib-like protrusion surface in the configurations of light sources of the back side covers housing for the aluminium extruded type back of the body of being finished in one-body molded mode.
For further specifying above-mentioned purpose of the present utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is an element circuit block schematic diagram of a Thin Film Transistor-LCD (TFTLCD).
Fig. 2 is the profile construction synoptic diagram that traditional back light is used in combination with display pannel.
Fig. 3 is the profile construction synoptic diagram that the utility model one preferred embodiment is used in combination with a display pannel.
Fig. 4 is the back side D structure synoptic diagram of the utility model one preferred embodiment.
(5) embodiment
See also Fig. 3, it is the profile construction synoptic diagram that the back light of the utility model one preferred embodiment is used in combination with a display pannel 30, the utility model one preferred embodiment back light structure covers housing 33 formations by the linear light source that is arranged in parallel and the back of the body that several cold cathode fluorescent lamp pipes (CCFL) 31 are finished respectively, described fluorescent tube 31 is to be fixed and to be coated on the back side of display pannel 30 via described back of the body lid housing 33, in order to needed light when showing to be provided.And be the heat dissipation problem that can solve the back of the body lid housing of surfacing in the existing means, the surface of the back of the body lid housing 33 in the utility model preferred embodiment has several protrusions 331 to strengthen its radiating efficiency and the intensity that increases its structure, find out by knowing among Fig. 4, described protrusion 331 several rib-like protrusions for being arranged in parallel, its aluminium extruded type back of the body that is available one-body molded mode is finished covers housing to be finished.Like this, the utility model structure can provide bigger area of dissipation and the preferable housing of intensity, be highly suitable for the passive-type display, especially on the large scale Thin Film Transistor-LCD.The material of the above-mentioned back of the body lid housing also good material of other heat-sinking capability such as available iron is finished.
Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.
Claims (8)
1. a back side configurations of light sources is applied to a passive-type display, it is characterized in that it comprises:
Several illuminating sources are arranged at the back side of described passive-type display, required light when providing described passive-type display to carry out display action; And
One back of the body covers housing, is fixedly attached to the back side of described passive-type display, and described illuminating source is located and coated wherein, and the surface of described back of the body lid housing has several protrusions to strengthen its radiating efficiency and the intensity that increases its structure.
2. the back side as claimed in claim 1 configurations of light sources is characterized in that, the described passive-type display that is suitable for is a LCD.
3. the back side as claimed in claim 2 configurations of light sources is characterized in that the described LCD that is suitable for is a Thin Film Transistor-LCD.
4. the back side as claimed in claim 1 configurations of light sources is characterized in that, described illuminating source is several linear light sources that be arranged in parallel.
5. the back side as claimed in claim 4 configurations of light sources is characterized in that, the described linear light source that be arranged in parallel is several cold cathode fluorescent lamp pipes.
6. the back side as claimed in claim 1 configurations of light sources is characterized in that, the material chosen from Fe or the aluminium of described back of the body lid housing.
7. the back side as claimed in claim 1 configurations of light sources is characterized in that, the described protrusion that the surface had of described back of the body lid housing is several rib-like protrusions that are arranged in parallel.
8. the back side as claimed in claim 7 configurations of light sources is characterized in that, the described back of the body lid housing with described rib-like protrusion surface covers housing for the aluminium extruded type back of the body of being finished in one-body molded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02201329 CN2518126Y (en) | 2002-01-07 | 2002-01-07 | Back light source structure applied to passive display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02201329 CN2518126Y (en) | 2002-01-07 | 2002-01-07 | Back light source structure applied to passive display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2518126Y true CN2518126Y (en) | 2002-10-23 |
Family
ID=33684213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02201329 Expired - Lifetime CN2518126Y (en) | 2002-01-07 | 2002-01-07 | Back light source structure applied to passive display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2518126Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374928C (en) * | 2004-11-29 | 2008-03-12 | 中华映管股份有限公司 | Heat radiation structure of direct downward back light module |
| CN100405203C (en) * | 2003-03-10 | 2008-07-23 | 三星电子株式会社 | Liquid crystal display apparatus |
| US8436957B2 (en) | 2008-12-26 | 2013-05-07 | Lg Display Co., Ltd. | Liquid crystal display device having good heat radiating function |
-
2002
- 2002-01-07 CN CN 02201329 patent/CN2518126Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405203C (en) * | 2003-03-10 | 2008-07-23 | 三星电子株式会社 | Liquid crystal display apparatus |
| CN100374928C (en) * | 2004-11-29 | 2008-03-12 | 中华映管股份有限公司 | Heat radiation structure of direct downward back light module |
| US8436957B2 (en) | 2008-12-26 | 2013-05-07 | Lg Display Co., Ltd. | Liquid crystal display device having good heat radiating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120107 Granted publication date: 20021023 |