CN100474650C - Display device with a cylindrical mirror and producing method thereof - Google Patents
Display device with a cylindrical mirror and producing method thereof Download PDFInfo
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- CN100474650C CN100474650C CNB2004100966066A CN200410096606A CN100474650C CN 100474650 C CN100474650 C CN 100474650C CN B2004100966066 A CNB2004100966066 A CN B2004100966066A CN 200410096606 A CN200410096606 A CN 200410096606A CN 100474650 C CN100474650 C CN 100474650C
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- display module
- cylindrical mirror
- substrate
- sealing cap
- display unit
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Abstract
This invention relates to a display device including a substrate, a display module, a cylinder mirror and a glass cap, in which, the module is adhered on the substrate for emitting light, the cylinder mirror is set on the display module for altering the light intensity distribution emitted by the display module and the glass cap is set on the cylinder mirror to be sealed with the substrate to cover the cylinder mirror and the display module, which can control the color conveniently by improving the distribution of light intensity of a display device under different visual angles and a preparation method is disclosed.
Description
Technical field
The present invention relates to a kind of display unit, relate in particular to a kind of display unit that has a cylindrical mirror in it.
Background technology
Shown in Figure 1 is the sectional view of a traditional Organic Light Emitting Diode.Tradition Organic Light Emitting Diode 10 comprises a sealing cap 11, a negative electrode 12, an electron injecting layer (EIL) 13, an electron transfer layer (ETL) barrier layer, 14, one electric hole (HBL) 15, a luminescent layer (EML) 16, one electric hole transport layer (HTL), 17, one electric hole implanted layer (HIL) 18 and an anode 19.
Fig. 2 has provided the summary diagram of Organic Light Emitting Diode optical transmission shown in Figure 1.In traditional Organic Light Emitting Diode 10, light passes multiple different material.This makes primaries (being ruddiness, green glow, blue light) because interference effect can present different light intensity distributions under different visual angles.For example, the light radiation up or down that luminescent layer (EML) 16 sends, wherein the light of downward radiation passes electric hole transport layer (HTL) 17 and electric hole implanted layer (HIL) 18, is reflected by anode 19, and the light with upwards radiation interferes then.Therefore, any light in the primaries all has different light intensity distributions under different visual angles, and synthetic light can cause display the colour cast effect to occur.
Shown in Figure 3 is the sectional view of a traditional organic LED display device.Conventional display device 20 comprises a substrate 21, a display module 22 and a glass sealing cap 23.Display module 22 is attached on the upper surface of substrate 21, is one to be fit to be used for luminous Organic Light Emitting Diode.The light that display module 22 sends comprises primaries, i.e. ruddiness, green glow, blue light.Glass sealing cap 23 is arranged on above the display module 22, and is sealed by fluid sealant 24 with substrate 21, is used for covering display module 22 and forms an encapsulating structure.
Fig. 4 shown from different view to the light intensity distributions of the primaries that sends of traditional organic LED display device 20, wherein 0 kilsyth basalt is shown on the vertical direction and observes, the positive number of degrees are illustrated in the vertical direction right side and observe, and the negative number of degrees are illustrated in the vertical direction left side and observe.The shortcoming of tradition organic LED display device 20 is that primaries has different light intensity distributions under different visual angles.Curve A is the light intensity distributions of ruddiness among the figure, and curve B is the light intensity distributions of green glow, and curve C is the light intensity distributions of blue light.As shown in FIG., the light intensity distributions of green glow and blue light is spent under the visual angle as the letter U of mirror writing and 0 the maximum light intensity value; The light intensity distributions of ruddiness is bimodal distribution and under+40 degree and-40 degree visual angles maximum light intensity value is arranged.Therefore, the light intensity distributions difference of the light intensity distributions of ruddiness and other two kinds of primitive color lights (being green glow and blue light) is very big, thereby causes the colour cast effect.For example, if the luminous intensity of primaries is adjusted under 0 degree visual angle consistent each other, viewed synthetic light is white light.But if from other view, above-mentioned synthetic light is white light no longer just.This colour cast effect is a difficult problem in the color adaptation.
Therefore, need a kind of novel improved type display unit to solve an above-mentioned difficult problem.
Summary of the invention
Main purpose of the present invention provides a kind of display unit that wherein has a cylindrical mirror, improving the inconsistency of light light intensity distributions under different visual angles that display unit sends, thus the control of convenient color.
Another object of the present invention provides a kind of display unit that comprises a substrate, a display module, a cylindrical mirror and a sealing cap.Display module is luminous attached to being used on the substrate; Cylindrical mirror be arranged on display module above be used for changing the luminous light intensity distributions of display module; Sealing cap is arranged on the top of cylindrical mirror and is sealed with substrate and is used for covering cylindrical mirror and display module.
Description of drawings
Fig. 1 is the sectional view of traditional Organic Light Emitting Diode;
Fig. 2 is the summary diagram of traditional Organic Light Emitting Diode optical transmission shown in Figure 1;
Fig. 3 is the sectional view of traditional organic LED display device;
Fig. 4 is the light intensity distributions figure of observed from different perspectives traditional organic LED display device primaries;
Fig. 5 is the sectional view according to the organic LED display device of first embodiment of the invention;
Fig. 6 is the ruddiness light intensity distributions figure according to the organic LED display device of first embodiment of the invention;
Fig. 7 is the sectional view according to the organic LED display device of second embodiment of the invention;
Fig. 8 is the ruddiness light intensity distributions figure according to the organic LED display device of second embodiment of the invention, and wherein glass sealing cap does not contact display module;
Fig. 9 is the ruddiness surface of intensity distribution according to the organic LED display device of second embodiment of the invention, and wherein glass sealing cap directly contacts display module;
Figure 10 is the sectional view according to the organic LED display device of third embodiment of the invention;
Figure 11 is the sectional view according to the organic LED display device of fourth embodiment of the invention.
Embodiment
Shown in Figure 5 is sectional view according to the organic light emitting diode display of first embodiment of the invention.Display unit 30 comprises a substrate 31, a display module (for example Organic Light Emitting Diode) 32, one cylindrical mirror 33 and a sealing cap (for example glass sealing cap) 34.
In this embodiment, this sealing cap is the glass sealing cap 34 of a band supporting leg, and its supporting leg is sealed by sealant 35 and substrate 31.Glass sealing cap 34 is used for covering display module 32 and cylindrical mirror 33 to form an encapsulating structure.Perhaps, sealing cap has a groove to hold display module 32 and cylindrical mirror 33.This groove is adjustable.
The making step of the display unit 30 of this embodiment is as follows: a substrate 31 (A) is provided; (B) with a display module 32 attached on the substrate 31; (C) with a cylindrical mirror 33 attached on the display module 32, wherein cylindrical mirror 33 is attached on the upper surface of display module 32; (D) sealing cap 34 is arranged on the cylindrical mirror 33; (E) substrate 31 and sealing cap 34 are sealed cover display module 32 and cylindrical mirror 33.
Fig. 6 has shown the ruddiness light intensity distributions figure according to the organic LED display device of first embodiment of the invention, and use therein testing equipment is TOPCON BM-7 photometer (the following examples is also used this instrument test).Curve A among the figure is the ruddiness light intensity distributions of traditional organic LED display device, i.e. curve A among Fig. 4.Curve D among the figure is the ruddiness light intensity distributions of a mirror writing letter U of picture.Shown in curve, the ruddiness of first embodiment has maximum light intensity distributions under visual angle+30 degree and-30 degree.When the light intensity distributions of blue light and green glow during, can use this embodiment as the letter U of mirror writing.
Fig. 7 shows is sectional view according to the organic light emitting diode display of second embodiment of the invention.This embodiment and first embodiment are basic identical, and just the position of cylindrical mirror 33 is different.In this embodiment, cylindrical mirror 33 is attached on the upper surface of glass envelope 34.The advantage of this embodiment is that the distance between cylindrical mirror 33 and the display unit 32 can be regulated by the height that changes glass sealing cap 34, thereby obtains desired ruddiness light intensity distributions according to the light intensity distributions of green glow in the display unit and blue light.The minimum value of the preferable distance range between cylindrical mirror 33 and the display module 32 is the thickness of glass sealing cap 34, and promptly glass sealing cap 34 directly contacts display module 32.Under this condition, the light intensity distributions of ruddiness is shown in the curve F among Fig. 9.The maximum of the preferable distance range between cylindrical mirror 33 and the display module 32 is 1.1mm, and under this condition, the ruddiness light intensity distributions is shown in the curve E of Fig. 8.
The manufacturing step of the display unit 30 of this embodiment is as follows: a substrate 31 (a) is provided; (b) with display module 32 attached on the substrate 31; (c) provide a cylindrical mirror 33 and a sealing cap 34, wherein glass sealing cap has a upper surface and a lower surface; (d) with on the upper surface of cylindrical mirror 33 attached to sealing cap 34; (e) glass sealing cap 34 and substrate 31 are sealed cover display module 32.
Fig. 8 shows is the ruddiness light intensity distributions figure that the organic LED display device according to second embodiment of the invention sends, and wherein glass sealing cap 34 does not contact display module 32.Curve A is the ruddiness light intensity distributions of traditional organic LED display device, i.e. curve A among Fig. 4 among the figure.Curve E among the figure is the ruddiness light intensity distributions figure under the second embodiment condition.Compare with figure A, figure E has the maximum light intensity value under the visual angle and near curve B among Fig. 4 and curve C at 0 degree.Therefore, the light intensity distributions of primaries is quite consistent each other, thereby can convenient color control.
Fig. 9 shows is ruddiness light intensity distributions figure according to the organic LED display device of second embodiment of the invention, and wherein glass sealing cap 34 directly contacts display module 32.Curve A is the ruddiness light intensity distributions of traditional organic LED display device, the i.e. curve A of Fig. 4 among this figure.Curve E is the ruddiness light intensity distributions under the second embodiment condition among this figure.Compare with curve A, curve E has the maximum light intensity value under 0 degree visual angle.Curve F is similar to curve E (Fig. 8), and just the gradient of curve F is bigger than the gradient of curve E.
What Figure 10 showed is the sectional view of the organic LED display device of the third embodiment according to the present invention.This embodiment and first embodiment are basic identical, just the position difference of cylindrical mirror 33.In this embodiment, cylindrical mirror is attached to the lower surface of glass sealing cap 34 inboards.
The manufacturing step of the display unit 30 of this embodiment is as follows: a substrate 31 (a) is provided; (b) with display module 32 attached on the substrate 31; (c) provide a cylindrical mirror 33 and a sealing cap 34, wherein glass sealing cap has a upper surface and a lower surface; (d) cylindrical mirror 33 is attached on the lower surface of sealing cap 34; (e) glass sealing cap 34 and substrate 31 are sealed cover display module 32.
Figure 11 shows is sectional view according to the organic LED display device of fourth embodiment of the invention.This embodiment and the 3rd embodiment are basic identical, and just glass sealing cap 34 and the cylindrical mirror 33 among the 3rd embodiment replaced by the compound pier areal mirror among the 4th embodiment.As shown in the figure, compound pier areal mirror 43 itself has the sealing cap shape of a band supporting leg, can be sealed by adhesive 44 and substrate 41 and cover display module 42 formation one encapsulating structure.Therefore, cylindrical mirror is produced and assembly cost attached to reducing on the glass sealing cap.
Though above declarative description several embodiments of the present invention, these those skilled in the art can make multiple modification and improvement.Therefore, embodiments of the invention only have the meaning of illustrating and do not have limited significance.Being intended that of this paper the invention is not restricted to above illustrational particular form, and all keep the modification of spirit and scope of the invention all within the defined scope of the claim of enclosing.
Claims (21)
1, a kind of display unit, it comprises:
One substrate;
One display module, it is attached on the described substrate and is used for luminous;
One cylindrical mirror, it is arranged on and is used for changing the luminous light intensity distributions of described display module on the described display module;
One sealing cap, it is arranged on the cylindrical mirror and is sealed with substrate and covers cylindrical mirror and display module.
2, display unit as claimed in claim 1, the light that wherein said display module sends comprises ruddiness, blue light and green glow, described cylindrical mirror is fit to be used for changing the light intensity distributions of ruddiness, makes it approach the light intensity distributions of blue light and green glow.
3, display unit as claimed in claim 1, wherein said display module are Organic Light Emitting Diodes.
4, display unit as claimed in claim 1, wherein said cylindrical mirror is attached on the described sealing cap, and keeps a predefined distance with described display module.
5, display unit as claimed in claim 1, wherein said cylindrical mirror is attached on the described display module, and keeps a predefined distance with described sealing cap.
6, display unit as claimed in claim 1, wherein said sealing cap are glass sealing caps.
7, a kind of display unit, it comprises:
One substrate;
One display module, it is attached on the described substrate and is used for luminous;
One sealing cap, it is arranged on the described display module and is sealed with described substrate and covers described display module; And
One cylindrical mirror, it is arranged on the described sealing cap and is used for changing the luminous light intensity distributions of described display module.
8, display unit as claimed in claim 7, the light that wherein said display module sends comprises ruddiness, and described cylindrical mirror is used for changing the light intensity distributions of described ruddiness.
9, display unit as claimed in claim 7, wherein said display module are Organic Light Emitting Diodes.
10, display unit as claimed in claim 7, wherein said sealing cap are glass sealing caps.
11, a kind of display unit, it comprises:
One substrate;
One display module, it is attached on the described substrate and is used for luminous; And
One cylindrical mirror, it is arranged on the display module and is used for changing the luminous light intensity distributions of described display module, and wherein said cylindrical mirror is a sealing cap shape and suitable being sealed with substrate covers described display module.
12, display unit as claimed in claim 11, the light that wherein said display module sends comprises ruddiness, and described cylindrical mirror is fit to be used for changing the light intensity distributions of described ruddiness.
13, display unit as claimed in claim 11, wherein said display module are Organic Light Emitting Diodes.
14, a kind of display unit, it comprises:
One substrate;
One display module, it is attached on the described substrate and is used for luminous; And
One cylindrical mirror, its be arranged on the described display module and with its maintenance one predefined distance, described distance is adjusted and is used for changing the luminous light intensity distributions of described display module.
15, a kind of method that is used to change the luminous light intensity distributions of a display unit, described display unit comprises a display module, described display module has a light-emitting area, it is characterized in that: the light that described light-emitting area is sent disperses, changes light intensity distributions by cylindrical mirror.
16, a kind of method of manufacturing one display unit, it comprises:
(a) provide a substrate;
(b) with a display module attached on the described substrate;
(c) cylindrical mirror is set above described display module;
(d) sealing cap is set above described cylindrical mirror; And
(e) described substrate and described sealing cap are sealed cover described cylindrical mirror and described display module.
17, method as claimed in claim 16 wherein is attached to described cylindrical mirror on the described display module in step (c).
18, a kind of method that is used to make a display unit, it comprises:
(a) provide a substrate;
(b) with a display module attached on the described substrate;
(c) provide a cylindrical mirror and a sealing cap, wherein said sealing cap has a upper surface and a lower surface;
(d) with described cylindrical mirror attached on the described sealing cap; And
(e) described substrate and described sealing cap are sealed cover described display module.
19, method as claimed in claim 18 wherein is attached to described cylindrical mirror on the upper surface of described sealing cap in step (d).
20, method as claimed in claim 18 wherein is attached to described cylindrical mirror on the lower surface of described sealing cap in step (d).
21, a kind of method that is used to make a display unit, it comprises:
(a) provide a substrate;
(b) with a display module attached on the described substrate;
(c) provide a cylindrical mirror, wherein said cylindrical mirror is a sealing cap shape and is used to change the luminous light intensity distributions of described display module;
(d) described cylindrical mirror is arranged on the described sealing cap; And
(e) described substrate and described cylindrical mirror are sealed cover described display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100966066A CN100474650C (en) | 2004-12-02 | 2004-12-02 | Display device with a cylindrical mirror and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100966066A CN100474650C (en) | 2004-12-02 | 2004-12-02 | Display device with a cylindrical mirror and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1783529A CN1783529A (en) | 2006-06-07 |
| CN100474650C true CN100474650C (en) | 2009-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100966066A Expired - Fee Related CN100474650C (en) | 2004-12-02 | 2004-12-02 | Display device with a cylindrical mirror and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100474650C (en) |
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2004
- 2004-12-02 CN CNB2004100966066A patent/CN100474650C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1783529A (en) | 2006-06-07 |
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Granted publication date: 20090401 Termination date: 20191202 |