CN101251665B - Double-screen display module - Google Patents
Double-screen display module Download PDFInfo
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- CN101251665B CN101251665B CN2008100891528A CN200810089152A CN101251665B CN 101251665 B CN101251665 B CN 101251665B CN 2008100891528 A CN2008100891528 A CN 2008100891528A CN 200810089152 A CN200810089152 A CN 200810089152A CN 101251665 B CN101251665 B CN 101251665B
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- light source
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- circuit board
- screen display
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Abstract
The invention provides a double screen display module used for a display device, comprising a first display module, a first light source, a second display module, a second light source and a printed circuit board, wherein, the printed circuit board is electrically connected with the first display module and the second display module, wherein, the second light source which is used for supplying light beams to the second display module is directly arranged on the printed circuit board.
Description
Technical field
The present invention is about a kind of display module, particularly a kind of double-screen display module that is used for display device.
Background technology
Along with the evolution of development of technology and product specification, many on the market electronic products more are equipped with another additional display screen except primary display screen, to promote the allomeric function of electronic product, for the user provides operation more easily.For example, general Collapsible mobile telephone has inside and outside screen usually, wherein interior screen is generally the display panel of large-size, and present preferable sharpness usually, main information frame during as operation, outer screen then has functions such as can showing time, incoming call, picture, animation at least, and the user must not lift mobile phone and open, and just can immediately obtain partial information by outer screen.In addition, the part handheld game device also has the employing double screen in order to show the design of different pictures, so that the player to be provided enough game informations.
Except above-mentioned small-sized portable apparatus, the notebook computer that has than screen sizes also has the trend that adopts the double screen design gradually.Shown in Figure 1A, notebook computer 10 more is equipped with outer screen 13 on the shell except screen 11 in large-sized (illustrating as dotted line).When notebook computer 10 was in closure state, the user still can obtain relevant information by outer screen 13, and for example Email or instant messages receives or the like.
Known double-screen display module merely manages two groups of display modules are designed in display device, also be about to two groups independently light source and two groups independently display module etc. made up, be connected to circuit board (not illustrating among the figure) again.Further with regard to light source, known technology provides light source, usually earlier light source is incorporated into (flexible copper clad laminate on the flexible base plate, FCCL), to form a light source fixed strip (light bar), when follow-up assembling, again this light source fixed strip binding is fixed on the ad-hoc location.
See also Figure 1B, be depicted as the side view of known double-screen display module.First display module 15 is made up of flexible circuit board 101a, the first panel 102a, compound optical thin film 103a, light guide plate 104a and light source fixed strip 106a; Similarly, second display module 17 also comprises flexible circuit board 101b, the second panel 102b, optical thin film 103b, light guide plate 104b and light source fixed strip 106b.In addition, first display module 15 and second display module 17 are arranged at two sides of a reflecting plate 105, whereby, reflecting plate 105 can reflect respectively from light source fixed strip 106a, the light of 106b, to promote light, increase the brightness that first display module 15 and second display module 17 are presented respectively through the ratio of first display module 15 and 17 ejaculations of second display module.
The thin portion structure of light source fixed strip 106a, 106b is please further with reference to figure 1C, and it is arranged at a plurality of light sources 107 (for example being a plurality of light emitting diodes) on the flexible base plate 107a, to form a light source module.In the follow-up packaging technology of display device, again light source fixed strip 106a, 106b are positioned ad-hoc location.Yet, in the process of assembling light source fixed strip 106a, 106b, need consider factors such as location, electric connection, cause processing step too complicated and degree of accuracy is not enough, manufacturing cost is higher.
In sum, provide a kind of double screen module, and then improve the technology of display device, look forward to the target of realization for industry jointly with preferred construction design.
Summary of the invention
A purpose of the present invention is to provide a kind of double-screen display module, it is set directly at the part light source on the printed circuit board (PCB), can save and use known light source fixed strip need earlier light source be arranged on step and material on the flexible base plate, and because light source directly is fixed on the circuit board, certainly need not consider the contraposition and the electric connection of light source fixed strip during follow-up the assembling, so can shorten the time of the required cost of packaging technology, reduce manufacturing cost.
Another object of the present invention is to provide a kind of double-screen display module, wherein light source optionally is bonded on the surface of circuit board, has the easy advantage of manufacturing process; Perhaps, light source is arranged on the lateral margin of circuit board, then can further reduces the thickness of display module, the display device that has more the market competitiveness is provided.
For reaching above-mentioned purpose, the present invention discloses a kind of double-screen display module that is used for a display device, it comprises first display module, first light source, second display module, secondary light source and printed circuit board (PCB), wherein, this first light source provides first display module required light source, and this secondary light source provides second display module required light source; This printed circuit board (PCB) and this first display module and this second display module electrically connect; Wherein, this secondary light source is set directly on this printed circuit board (PCB).
Behind the embodiment of consulting accompanying drawing and describing subsequently, those skilled in the art can understand essence spirit of the present invention and goal of the invention easily, and the technology used in the present invention means and preferred embodiment.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Figure 1A is the known double-screen display module schematic representation of apparatus that has;
Figure 1B is the synoptic diagram of known double-screen display module;
Fig. 1 C is the synoptic diagram of known light source;
Fig. 2 is the synoptic diagram of double-screen display module of the present invention;
Fig. 3 A is in one embodiment of the invention, the configured light sources synoptic diagram; And
Fig. 3 B is in another embodiment of the present invention, the configured light sources synoptic diagram.
Wherein, Reference numeral
10: notebook computer 11: interior screen
13: 15: the first display modules of outer screen
17: the second display module 101a: flexible circuit board
101b: flexible circuit board 102a: first panel
102b: the second panel 103a: optical thin film
103b: optical thin film 104a: light guide plate
104b: light guide plate 105: reflecting plate
106a: light source fixed strip 106b: light source fixed strip
107: light source 107a: flexible base plate
2: double-screen display module 20a: first display module
20b: the second display module 202a: first panel
202b: the second panel 203a: first light guide plate
203b: the second light guide plate 204a: first light source
204b: secondary light source 205a: first optical thin film
205b: second optical thin film 206: printed circuit board (PCB)
207: framework 230: reflecting module
Embodiment
Double-screen display module disclosed in this invention as shown in Figure 2, double-screen display module 2 is used for a display device, and provides a display screen respectively on the relative two sides of display device.In detail, double-screen display module 2 comprises the first display module 20a and the second display module 20b, is separately positioned on the relative two sides of display device.
The first display module 20a shown in Figure 2 is in order to the main screen as display device, so illustrate to having bigger display size.The first display module 20a includes the first panel 202a stacked on top of each other, the first light guide plate 203a and the first optical thin film 205a.In addition, more be provided with the first light source 204a in the double-screen display module 2,,, be beneficial to the first display module 20a display effect is provided in order to the first display module 20a to be provided required light source towards the first light guide plate 203a throw light.In detail, the light that the first light source 204a is sent is introduced into this first light guide plate 203a forming an area source, and behind the first optical thin film 205a and the first panel 202a, produces a display frame.Preferably, the first light source 204a can be arranged on the flexible circuit board, and may be selected to be light emitting diode (light-emitting diode, LED) or cold-cathode tube (cold cathode fluorescent lamp, CCFL) form, Fig. 2 only with cold-cathode tube as example, in fact the selection viewable design demand of light source is adjusted, and is not in order to restriction the present invention.
Similarly, the second display module 20b comprises the second panel 202b stacked on top of each other, the second light guide plate 203b and the second optical thin film 205b, double-screen display module 2 more comprises secondary light source 204b, wherein, secondary light source 204b is towards the second light guide plate 203b throw light, in order to the second display module 20b to be provided required light source.In detail, the light that secondary light source 204b is sent enters the second light guide plate 203b to form area source, through the second optical thin film 205b and the second panel 202b, forms a display frame again.Secondary light source 204b can be one of them of a light emitting diode and an Organic Light Emitting Diode.Preferably, secondary light source 204b shown in Figure 2 illustrates with light emitting diode, but is not in order to restriction the present invention.
In addition, more be formed with first control circuit and second control circuit on the printed circuit board (PCB) 206, electrically connect with the first display module 20a and the second display module 20b respectively, control signal is sent to the first display module 20a and the second display module 20b respectively.More than explanation and accompanying drawing paint are incorporated into first control circuit and second control circuit on the printed circuit board (PCB) 206, but not as limit, also first control circuit and second control circuit can be located at respectively independently on two printed circuit board (PCB)s, those skilled in the art can finish easily.
The aforesaid first display module 20a, the second display module 20b and printed circuit board (PCB) 206 can be assembled on the framework 207, particularly the first display module 20a and the second display module 20b are arranged at two opposite sides of framework 207 respectively, to form the structure of double screen respectively on the two sides of display device.
In addition, double-screen display module 2 of the present invention more comprises a reflecting module 230, be arranged between this first display module 20a and this second display module 20b, this reflecting module 230 can be known reflecting plate, it has the double-sided reflecting characteristic usually, for example has the first relative reflecting surface and second reflecting surface.Clearer and more definite, first reflecting surface of reflecting module 230 is towards this first display module 20a, second reflecting surface is towards this second display module light guide plate 20b, in order to improve the utilization factor of the light that the first light source 204a and secondary light source 204b launched respectively, promotes the brightness performance of screen.
The invention is characterized in that secondary light source 204b is set directly on the printed circuit board (PCB) 206, whereby, secondary light source 204b does not need to be made in advance the light source fixed strip, and be directly fixed on the printed circuit board (PCB) 206, therefore can save steps such as the location of follow-up lamp source fixed strip and electric connection, realize the effect that simplification on the processing step and cost reduce.Shown in Fig. 3 A and Fig. 3 B, directly combine as long as will be provided with the printed circuit board (PCB) 206 of secondary light source 204b, just the position that secondary light source 204b can be positioned to preset with framework 207; Wherein, the visual demand adjustment of the fixed form of secondary light source 204b, for example, secondary light source 204b as shown in Figure 3A is arranged on a side of printed circuit board (PCB) 206, and another embodiment is shown in Fig. 3 B, secondary light source 204b is arranged on a surface of printed circuit board (PCB) 206, and is positioned at one side with the second display module 20b, is beneficial to provide the second display module 20b required light source.When secondary light source 204b is arranged on the side of printed circuit board (PCB) 206, can reduce the integral thickness of double-screen display module 2, can obtain the display device of thinner thickness at last, and when secondary light source 204b is arranged on the bottom surface of printed circuit board (PCB) 206, then have the easier advantage of manufacturing process, decide on design requirement.What must illustrate is that the position that is provided with of secondary light source 204b only is used for illustrating that any those skilled in the art can change aforesaid position configuration on demand.
In sum, the present invention need not be processed into light source the light source fixed strip, so can exempt the steps such as materials demand, location and electric connection of known light source fixed strip in advance by secondary light source directly is arranged on the circuit board.In assembling process, only need directly circuit board to be fixed on the framework to get final product, can effectively simplify package program, reduce manufacturing cost.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (8)
1. a double-screen display module is used for a display device, it is characterized in that, this double-screen display module comprises:
One first display module;
One first light source is in order to provide this first display module required light source;
One second display module;
One secondary light source is in order to provide this second display module required light source;
One framework, wherein this first display module and this second display module are separately positioned on two opposite sides of this framework; And
One printed circuit board (PCB) electrically connects with this first display module and this second display module;
Wherein, this secondary light source is set directly on the side of this printed circuit board (PCB).
2. double-screen display module according to claim 1 is characterized in that, this secondary light source is one of them of a light emitting diode and an Organic Light Emitting Diode.
3. double-screen display module according to claim 1 is characterized in that this double-screen display module also comprises a flexible circuit board, and this first light source is arranged on this flexible circuit board.
4. double-screen display module according to claim 1 is characterized in that this printed circuit board (PCB) comprises a first control circuit, and electrically connects with this first display module.
5. double-screen display module according to claim 4 is characterized in that this printed circuit board (PCB) also comprises a second control circuit, and electrically connects with this second display module.
6. double-screen display module according to claim 1 is characterized in that, this first display module also comprises:
One first light guide plate;
One first optical thin film; And
One first panel;
Wherein, this first light guide plate, this first optical thin film and this first panel are stacked on top of each other.
7. double-screen display module according to claim 1 is characterized in that, this second display module also comprises:
One second light guide plate;
One second optical thin film; And
One second panel;
Wherein, this second light guide plate, this second optical thin film and this second panel are stacked on top of each other.
8. double-screen display module according to claim 1, it is characterized in that, this double-screen display module also comprises a reflecting module, be arranged between this first display module and this second display module, this reflecting module comprises one first reflecting surface and one second reflecting surface, this first reflecting surface is towards this first display module, and this second reflecting surface is towards this second display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100891528A CN101251665B (en) | 2008-04-01 | 2008-04-01 | Double-screen display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100891528A CN101251665B (en) | 2008-04-01 | 2008-04-01 | Double-screen display module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101251665A CN101251665A (en) | 2008-08-27 |
| CN101251665B true CN101251665B (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100891528A Active CN101251665B (en) | 2008-04-01 | 2008-04-01 | Double-screen display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101251665B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584770B (en) * | 2018-12-17 | 2022-02-08 | 武汉天马微电子有限公司 | Display panel and display device |
| CN110189655B (en) * | 2019-05-27 | 2021-10-08 | 深圳市致竑光电有限公司 | Luminous glass module |
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2008
- 2008-04-01 CN CN2008100891528A patent/CN101251665B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101251665A (en) | 2008-08-27 |
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