CN2560001Y - Mixed back light source structure - Google Patents
Mixed back light source structure Download PDFInfo
- Publication number
- CN2560001Y CN2560001Y CN 02241605 CN02241605U CN2560001Y CN 2560001 Y CN2560001 Y CN 2560001Y CN 02241605 CN02241605 CN 02241605 CN 02241605 U CN02241605 U CN 02241605U CN 2560001 Y CN2560001 Y CN 2560001Y
- Authority
- CN
- China
- Prior art keywords
- light
- back side
- source structure
- passive
- utility
- 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 - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a composite back light source structure which is applied in a passive type monitor. The utility model comprises a plurality of illuminant light sources which are arranged at the back of the passive type monitor and are used for supplying the passive monitor with the light rays needed when the passive monitor carries out displaying function, a back tegmental shell which is fixedly connected with the back of the passive monitor and is used for locating and packing the illuminant light sources, and is provided with an inclined part for placing a printed circuit board, a light guide plate which is arranged on the inclined part of the back tegmental shell and is used for guiding the light rays given off by the illuminant light sources. The composite back light source structure of the utility model can solve the problem in the present means that a part of the cold cathode fluorescent tubes need to approach to the monitor panel due to the limitation of the arrangement of a tape taut printed circuit board and thus leading the viewers to see the lighting tubes. The utility model has greater industrial value.
Description
(1) technical field
The utility model relates to a kind of back side light-source structure, refers in particular to the back side light-source structure of a kind of passive-type display (passivedisplay), for example LCD (Liquid Crystal Display, back side light-source structure LCD).
(2) background technology
Along with being showing improvement or progress day by day of manufacturing technology, passive-type display (passive display) is subjected to consumer favor gradually and becomes main flow on the market gradually.Especially LCD (Liquid crystal displayLCD) has been a kind of passive-type display device that is widely used.The principle of work of LCD mainly is to utilize electric field to change the ordered state of liquid crystal, makes the light that passes through liquid crystal produce the phenomenon that circuit changes, and then reaches the display effect that light and shade changes.
See also Fig. 1, it is an element circuit block schematic diagram of a membrane transistor LCD (TFT-LCD), and wherein membrane transistor 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 when membrane transistor 11 is in conducting state between the pixel electrode 131, common electrode 132 of liquid crystal 12 both sides, in order to change the ordered state of this liquid crystal 12, and then control the printing opacity degree of this 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.
As shown in the above description, the pixel of LCD itself and can't be luminous, and the light that is sent to the beholder is sent by back side light source fully, so the picture quality of LCD is influenced by the quality of back side light source also.
See also Fig. 2, it is the profile construction synoptic diagram that is used in combination with display pannel for existing traditional back side light-source structure.Traditional back side light-source structure is made of several cold cathode fluorescent lamp pipe 21, and covers the rear that housing 22 is fixed in these cathodouminescence fluorescent tubes 21 display pannel 23 via a back of the body.Yet existing back side light-source structure is provided with the placement location that (being arranged at the part 221 that this back of the body lid housing 22 tilts to this display pannel usually) can have influence on fluorescent tube because of coil type (Chip on tape) printed circuit board (PCB) 24, make and to place to this display pannel 23 directions reach that this will cause the distance deficiency of 23 of fluorescent tube and display pannels and make the beholder see fluorescent tube corresponding to the fluorescent tube of this coil type printed circuit board (PCB) 24.Therefore, how to improve this shortcoming and propose a form that is different from now, and more be applicable to a back side configurations of light sources of LCD, be a free-revving engine of the present utility model.
(3) utility model content
Fundamental purpose of the present utility model provides a kind of hybrid back side light-source structure, can in order to solve part cold cathode fluorescent lamp pipe in the existing means be limited to the winding soft printed circuit board setting and must to the display pannel side near cause the beholder to see the situation of fluorescent tube.
Another purpose of the present utility model is applied to a passive-type display for a kind of hybrid back side light-source structure is provided.
The purpose of this utility model is achieved in that hybrid back side light-source structure comprises:
Several illuminating sources are arranged at the back side of described passive-type display, required light when providing this passive-type display to carry out display action;
One back of the body cover housing, is fixedly attached to the back side of described passive-type display, in order to these described illuminating sources location and coating wherein, and has a sloping portion, in order to a printed circuit board (PCB) to be set thereon; And
One light guide plate is arranged at the sloping portion that the described back of the body covers housing, in order to guide the light that these described illuminating sources send.
According to conception of the present utility model, wherein said passive-type display is a LCD.
According to conception of the present utility model, wherein said LCD is a film liquid crystal display.
According to conception of the present utility model, wherein these described illuminating sources comprise one first group of illuminating source and one second group of illuminating source, and it is arranged at the both sides of this light guide plate respectively.
According to conception of the present utility model, wherein said first group of illuminating source is that the wire that be arranged in parallel is arranged fluorescent tube.
According to conception of the present utility model, wherein said second group of illuminating source is a fluorescent tube.
According to conception of the present utility model, wherein these described illuminating sources are several cold cathode fluorescent lamp pipes.
Effect of the present utility model: the hybrid back side of the present utility model light-source structure can solve in the existing means part cold cathode fluorescent lamp pipe be limited to the setting of winding soft printed circuit board and need to the display pannel side near cause the beholder to see the situation of fluorescent tube, therefore, the utlity model has bigger industrial value.
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 membrane transistor LCD.
The profile construction synoptic diagram that Fig. 2 is used in combination with display pannel for existing traditional back side light-source structure.
Fig. 3 is the structural representation that the hybrid back side light source of the utility model preferred embodiment is used in combination with a display pannel.
(5) embodiment
See also Fig. 3, the structural representation that it is used in combination with a display pannel for the hybrid back side light source of the utility model preferred embodiment.As shown in Figure 3, the hybrid back side of the present utility model light-source structure mainly comprises several cold cathode fluorescent lamp pipes (CCFL) 31 (being the 311-316 among the figure), these fluorescent tubes 31 are fixed via this back of the body lid housing 32 and are coated on the back side of display pannel 33, in order to light required when showing to be provided.And be solve part cold cathode fluorescent lamp pipe in the existing means be limited to the coil type printed circuit board (PCB) setting (be arranged at the back of the body usually and cover the part that housing tilts to this display pannel) and must to display pannel 33 sides close cause the beholder to see the situation of fluorescent tube, the utility model covers housing in the back of the body uses or is provided with light guide plate 35 instead to the given bevel place (coil type printed circuit board (PCB) placement) that this display pannel tilts, these luminous lamp tubes 31 can be divided into one first group of illuminating source 311 and one second group of illuminating source 312,313,314,315 and 316.This light guide plate 35 can evenly import fluorescent tube 311 about it and 312 light that sent, the fluorescent tube 313 of other parts, 314,315 and 316 still keep traditional downward back area source design as shown in Figure 2, therefore can solve the problem that the beholder sees fluorescent tube, and utilize the guiding of this light guide plate 35, its mean flow rate can't reduce, can be the several times of existing back side light-source structure, and center brightness is constant.
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 (7)
1. a hybrid back side light-source structure is applied to a passive-type display, it is characterized in that described hybrid back side light-source structure comprises:
Several illuminating sources are arranged at the back side of described passive-type display, required light when providing this passive-type display to carry out display action;
One back of the body cover housing, is fixedly attached to the back side of described passive-type display, in order to these described illuminating sources location and coating wherein, and has a sloping portion, in order to a printed circuit board (PCB) to be set thereon; And
One light guide plate is arranged at the sloping portion that the described back of the body covers housing, in order to guide the light that these described illuminating sources send.
2. as 1 the described hybrid back side of claim the light-source structure, it is characterized in that described passive-type display is a LCD.
3. as 2 the described hybrid back side of claim the light-source structure, it is characterized in that described LCD is a film liquid crystal display.
4. as 1 the described hybrid back side of claim the light-source structure, it is characterized in that described these illuminating sources comprise one first group of illuminating source and one second group of illuminating source, are arranged at the both sides of described light guide plate respectively.
5. as 4 the described hybrid back side of claim the light-source structure, it is characterized in that described first group of illuminating source is that the wire that be arranged in parallel is arranged fluorescent tube.
6. as 5 the described hybrid back side of claim the light-source structure, it is characterized in that described second group of illuminating source is a fluorescent tube.
7. as 1 the described hybrid back side of claim the light-source structure, it is characterized in that described these illuminating sources are several cold cathode fluorescent lamp pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02241605 CN2560001Y (en) | 2002-07-03 | 2002-07-03 | Mixed back light source structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02241605 CN2560001Y (en) | 2002-07-03 | 2002-07-03 | Mixed back light source structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2560001Y true CN2560001Y (en) | 2003-07-09 |
Family
ID=33714436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02241605 Expired - Lifetime CN2560001Y (en) | 2002-07-03 | 2002-07-03 | Mixed back light source structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2560001Y (en) |
-
2002
- 2002-07-03 CN CN 02241605 patent/CN2560001Y/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110231735B (en) | display device | |
| CN100383636C (en) | Backlight assembly and liquid crystal display apparatus | |
| JP4537349B2 (en) | Light emitting package, and backlight unit and liquid crystal display device including the same | |
| CN100576028C (en) | Display device and driving method thereof | |
| US7825613B2 (en) | Backlight assembly and display device having the same | |
| US8797366B2 (en) | Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus | |
| JP2002196332A (en) | Color isolate backlight for lcd | |
| US8054402B2 (en) | Optical member, backlight assembly and display apparatus having the same | |
| CN104062778A (en) | Liquid Crystal Display With Narrow Bezel Area | |
| JP2009063751A (en) | Liquid crystal display device | |
| CN102097073B (en) | Driving system for backlight unit, liquid crystal display device and method of driving the same | |
| CN101149908A (en) | Liquid crystal display | |
| CN101222810A (en) | Directly-down type LCD backlight source control device | |
| CN110764304A (en) | Novel efficient peep-proof display module | |
| CN103912846A (en) | Backlight lens and direct-lit backlight module with same | |
| CN201877109U (en) | Display device and source electrode drive board | |
| CN2560001Y (en) | Mixed back light source structure | |
| CN102290031A (en) | Light-adjusting structure for backlight module of liquid crystal panel | |
| CN101725862B (en) | Backlight assembly, the liquid crystal display with it and the method for working fluid crystal display | |
| KR20080000825A (en) | Control device and method of backlight of liquid crystal display device | |
| US11822184B2 (en) | Backlight module, display device structure and display device | |
| KR20050022702A (en) | Liquid crystal display apparatus and driving method thereof | |
| CN2518126Y (en) | Back light source structure applied to passive display | |
| CN201487890U (en) | Radiating device for edge-lighting LED backlight module | |
| JP2846768B2 (en) | Liquid crystal display |
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: 20120703 Granted publication date: 20030709 |