CN101308429B - Touch control type electro-excitation light display panel - Google Patents
- ️Wed Jun 02 2010
CN101308429B - Touch control type electro-excitation light display panel - Google Patents
Touch control type electro-excitation light display panel Download PDFInfo
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- CN101308429B CN101308429B CN200810133914XA CN200810133914A CN101308429B CN 101308429 B CN101308429 B CN 101308429B CN 200810133914X A CN200810133914X A CN 200810133914XA CN 200810133914 A CN200810133914 A CN 200810133914A CN 101308429 B CN101308429 B CN 101308429B Authority
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- substrate
- display panel
- control type
- touch
- type electro Prior art date
- 2008-07-15 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.)
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- 239000000758 substrate Substances 0.000 claims abstract description 73
- 239000000463 material Substances 0.000 claims description 78
- 238000000926 separation method Methods 0.000 claims description 75
- 238000005424 photoluminescence Methods 0.000 claims description 58
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000027756 respiratory electron transport chain Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 7
- 238000012905 input function Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Electroluminescent Light Sources (AREA)
- Position Input By Displaying (AREA)
Abstract
A touch control type electro-excitation light display panel comprises a substrate and a cover plate. The substrate includes a pixel switch element, a signal reading element, an electroluminescent device and a sensing pad. The pixel switch element and the electroluminescent device are arranged in the display area of the substrate, and the signal reading element and the sensing pad are arranged in the non-display area of the substrate. The cover plate comprises a first spacer, a touch spacer and a conductive layer. The first spacer is arranged on one side of the cover plate facing the substrate, a fixed distance is maintained between the substrate and the cover plate, the touch spacer is arranged on the surface of the cover plate facing the substrate and corresponds to the sensing pad, and the conductive layer is arranged on the surface of the touch spacer facing the sensing pad. The invention provides a touch-control type electro-excitation light display panel, which is used for reducing the thickness of the touch-control type electro-excitation light display panel and endowing the touch-control type electro-excitation light display panel with a multi-point touch input function.
Description
Technical field
The present invention relates to a kind of touch control type electro photoluminescence display panel, relate in particular to a kind of touch control type electro photoluminescence display panel that touch control component is integrated in display panel and supports the multi-point touch input.
Background technology
Electric exciting light emitting display panel, for example organic LED display panel has advantages such as autoluminescence, high color saturation and power saving, is applied in gradually on all types of electronic products, for example mobile phone, personal digital assistant and global position system etc.In addition, since on the market for the requirement of the size of electronic product towards compact development, therefore many electronic products no longer design the finger-impu system that occupies big quantity space, and attempt replacing keyboard wherein combination of touch control input and the practice of Presentation Function the most popular present especially input technology with other input mechanism.
Please refer to Fig. 1.Fig. 1 is the synoptic diagram of known touch control type electro photoluminescence display panel.As shown in Figure 1, known touch control type electro photoluminescence display panel 10 mainly is made of electric exciting light emitting display panel 20 and contact panel 30.Electric exciting light emitting display panel 20 comprises substrate 22, cover plate 24, and light-emitting component 26 is arranged between substrate 22 and the cover plate 24.Contact panel 30 is attached to the outside surface of cover plate 24, and it comprises first conductive layer 32, over cap 34, second conductive layer 36, and separation material 38.First conductive layer 32 is arranged on the outside surface of the cover plate 24 of electric exciting light emitting display panel 20; second conductive layer 36 is arranged on the inside surface of over cap 34, and over cap 34 has elasticity and the support by separation material 38 makes the cover plate 24 of electric exciting light emitting display panel 20 be maintained fixed spacing often.
When external force (for example finger) touching can make over cap 34 produce deformation when pushing over cap 34; and make the space change of the win conductive layer 32 and second conductive layer 36; can and calculate the input signal that this position produces by electric circuit inspection whereby, reach the effect of touch-control input.Yet, make because the electric exciting light emitting display panel of known touch control type electro photoluminescence display panel and contact panel are independent respectively, therefore the volume of the touch control type electro photoluminescence display panel after the assembling will significantly increase.In addition, known touch control type electro photoluminescence display panel is only supported single-point touch input (single touch) function and can't support multi-point touch input (multiple touch) function that therefore restriction to some extent on using for example can't be carried out drag kick.
Summary of the invention
One of purpose of the present invention is to provide a kind of touch control type electro photoluminescence display panel, with thickness that reduces touch control type electro photoluminescence display panel and the function of giving its multi-point touch input.
For achieving the above object, the invention provides a kind of touch control type electro photoluminescence display panel, it comprises substrate and cover plate.Definition has non-display area (sensing area) and viewing area on the substrate, and substrate comprises pixel switch element, signal read element, electro photo-luminescent apparatus and sensing pad.Pixel switch element and electro photo-luminescent apparatus are arranged in the viewing area of substrate, and signal read element and sensing pad are arranged in the non-display area of substrate.Electro photo-luminescent apparatus comprises first electrode, second electrode, and light-emitting component is arranged between first electrode and second electrode and first electrode and the electric connection of pixel switch element.Sensing pad and signal read element electrically connect.Cover plate and substrate are oppositely arranged, it comprises first separation material, touch-control separation material and conductive layer, wherein first separation material is arranged on the side of cover plate in the face of substrate, and be positioned at this non-display area, and make between substrate and the cover plate and keep constant spacing, the touch-control separation material is arranged on surface and the corresponding sensing pad of cover plate in the face of substrate, and conductive layer is arranged on the surface of touch-control separation material in the face of sensing pad.
In described touch control type electro photoluminescence display panel, also comprise the power supply signal line, be electrically connected to this second electrode.
In described touch control type electro photoluminescence display panel, wherein this electro photo-luminescent apparatus comprises oled device.
In described touch control type electro photoluminescence display panel, wherein this light-emitting component comprises electron transfer layer, organic luminous layer and hole transmission layer.
In described touch control type electro photoluminescence display panel, wherein this conductive layer covers the surface of this cover plate in the face of this substrate.
In described touch control type electro photoluminescence display panel, wherein this conductive layer covers the sidewall of this touch-control separation material.
In described touch control type electro photoluminescence display panel, wherein this first separation material has identical height in fact with this touch-control separation material.
In described touch control type electro photoluminescence display panel, wherein this substrate has first thickness to position that should first separation material.
In described touch control type electro photoluminescence display panel, also comprise at least one second separation material, be arranged on this cover plate in the face of a side of this substrate, and be positioned at this non-display area, and this substrate has second thickness to position that should second separation material.
In described touch control type electro photoluminescence display panel, wherein this substrate has the 3rd thickness to position that should the touch-control separation material.
In described touch control type electro photoluminescence display panel, wherein this first thickness is greater than this second thickness and the 3rd thickness.
In described touch control type electro photoluminescence display panel, wherein this touch-control separation material comprises elastic material.
In described touch control type electro photoluminescence display panel, also comprise frame glue, be connected between this substrate and this cover plate.
In described touch control type electro photoluminescence display panel, wherein this conductive layer electrically connects common current potential.
Touch control type electro photoluminescence display panel of the present invention is incorporated into electric exciting light emitting display panel inside with touch control component, therefore can significantly reduce the thickness of electric exciting light emitting display panel.
Description of drawings
Fig. 1 is the synoptic diagram of known touch control type electro photoluminescence display panel.
Fig. 2 and Fig. 3 are the synoptic diagram of a preferred embodiment of touch control type electro photoluminescence display panel of the present invention.
Fig. 4 is the synoptic diagram of another preferred embodiment of touch control type electro photoluminescence display panel of the present invention.
Wherein, description of reference numerals is as follows:
10 touch control type electro photoluminescences show 20 electric exciting light emitting display panels
Panel
22 substrates, 24 cover plates
26 light-emitting components, 30 contact panels
32 first conductive layers, 34 over caps
36 second conductive layers, 38 separation materials
50 touch control type electro photoluminescences show 52 substrates
Panel
The red time pixel region of 53
pixel region53R
The green
time pixel region53B blue sub-pixels district of 53G
531 viewing areas, 532 non-display areas
54 cover plates, 55 pixel switch elements
56 signal read elements, 58 sensing pads
60 electro photo-luminescent apparatus, 62 first electrodes
64 second electrodes, 66 light-emitting components
66A
electron transfer layer66B organic luminous layer
66C
hole transmission layer68 first separation materials
The 68A first separation material base 70 touch-control separation materials
72 conductive layers, 74 second separation materials
The 74A second
separation material base76 frame glue
Embodiment
For making the those skilled in the art that are familiar with the technical field of the invention can further understand the present invention,
Hereinafter the spy enumerates several preferred embodiments of the present invention, and cooperates appended accompanying drawing, describes in detail of the present invention
Constitution content and the effect desiring to reach.
Please refer to Fig. 2 and Fig. 3.Fig. 2 and Fig. 3 are the synoptic diagram of a preferred embodiment of touch control type electro photoluminescence display panel of the present invention, wherein the pixel arrangement of the touch control type electro photoluminescence display panel of present embodiment is vertical bar formula (stripe type), Fig. 2 is the vertical view of touch control type electro photoluminescence display panel, Fig. 3 is the diagrammatic cross-section of the single dot structure of touch control type electro photoluminescence display panel, and, only show substrate among Fig. 2 for the clear pixel arrangement that demonstrates present embodiment.As Fig. 2 and shown in Figure 3, the touch control type electro
photoluminescence display panel50 of present embodiment comprises
substrate52 and
cover plate54, and wherein
substrate52 and
cover plate54 are for being oppositely arranged.Comprise multi-strip scanning line SL and many data line DL on the
substrate52, sweep trace SL and data line DL are staggered and define a plurality of pixel regions 53 on
substrate52, wherein each pixel region 53 for example comprises red
time pixel region53R, green
time pixel region53G and
blue sub-pixels district53B, and each time pixel region comprises
viewing area531 and
non-display area532, and
non-display area532 comprises the sensing area that is used for the sensing use.In addition,
substrate52 is provided with
pixel switch element55, signal read element 56,
sensing pad58, electro photo-
luminescent apparatus60, power supply signal line (power source line) P L, and signal read line (readout line) RL.
Pixel switch element55 can use the membrane transistor element with signal read element 56, and utilizes same process to be made.
Pixel switch element55 is arranged in the
viewing area531 of
substrate52 with electro photo-
luminescent apparatus60, and
pixel switch element55 is arranged on the below of electro photo-luminescent apparatus 60.Signal read element 56 is arranged in the
non-display area532 of
substrate52 with
sensing pad58, and the source electrode of
sensing pad58 and signal read element 56 electrically connects.In addition, signal read line RL then electrically connects with the drain electrode of signal read element 56, and can receive the control that sensing
pad58 senses and touch signal.
In the present embodiment, electro photo-
luminescent apparatus60 can be for example organic diode light-emitting device, but not can be other various EL part as limit.Electro photo-
luminescent apparatus60 comprises
first electrode62,
second electrode64, and light-
emitting component66, wherein
first electrode62 is as negative electrode in the present embodiment, and
second electrode64 is as anode, but not as limit, light-
emitting component66 then is arranged between
first electrode62 and second electrode 64.The light-
emitting component66 of present embodiment is selected organic light-emitting diode element for use, it mainly comprises
electron transfer layer66A, organic
luminous layer66B and
hole transmission layer66C, and alternative comprises retes such as electron injecting layer, hole injection layer, and wherein the material of retes such as
electron transfer layer66A, organic
luminous layer66B and
hole transmission layer66C can be selected any existing suitable material for use.In addition, light-
emitting component66 can use white light emitting element, and be matched with the mode that cover
plate54 or
substrate52 sides are provided with colored filter and reach the colored effect that shows, or light-
emitting component66 can directly use the light-emitting component of different colours, for example arrange in pairs or groups ruddiness, green glow and blue light emitting element, and do not need additionally to be provided with colored filter.
The touch control type electro
photoluminescence display panel50 of present embodiment is an example with luminous (top emitting) type upwards, therefore but
first electrode62 is selected the light-proof material of reflection ray for use, metal material for example,
second electrode64 is then selected transparent conductive material for use, but not as limit and the difference of visual light emission direction is changed.In addition, the drain electrode of
pixel switch element55 is electrically connected to
first electrode62, and power supply signal line PL is electrically connected to
second electrode64, whereby the GTG brightness of the voltage signal may command light-
emitting component66 that provides of power supply signal line PL and
pixel switch element55.
The
cover plate54 of touch control type electro
photoluminescence display panel50 comprises
first separation material68, touch-control separation material 70, conductive layer (common electrode) 72.
First separation material68 is arranged on
cover plate54 in the face of contacting in the
non-display area532 of a side of
substrate52 and with
substrate52, and
substrate52 is provided with the first
separation material base68A corresponding to the position of first separation material 68.
First separation material68 is as the usefulness of main gap thing (main spacer), and its function is often to make between
substrate52 and the
cover plate54 keeps constant spacing.Touch-control separation material 70 is arranged on surface and the
corresponding sensing pad58 of
cover plate54 in the face of substrate 52.Conductive layer 72 comprises transparent conductive material, it is arranged on the surface of touch-control separation material 70 in the face of
sensing pad58, electrically connect common current potential (common voltage), and look technology and consider conductive layer 72 and also optionally be arranged on
cover plate54 surface in the lump, and cover the sidewall of touch-control separation material 70 in the face of substrate 52.In addition,
substrate52 is coated with
frame glue76 with the outer peripheral areas of
cover plate54, so as to bonded
substrate52 and
cover plate54.
Conductive layer 72 and
corresponding sensing pad58 formation touch control components, when the user uses input media such as pointer or finger when the outside surface of
cover plate54 is imported, input media can be pushed a certain position of
cover plate54 and make the
cover plate54 that is positioned at this position produce deformation, and then the gap of the
sensing pad58 on the conductive layer 72 that makes touch-control separation material 70 surfaces and the
substrate52 dwindles or contacts and produce touching signals, and understand these touching signals of reception with the signal read element 56 that sensing
pad58 electrically connects, and this touching signals can be sent to interlock circuit via signal read line RL, utilize the touching signals that sweep time of sweep trace SL cooperates signal read line RL to read, and utilize algorithm to carry out coordinate computation, and detect the input signal of this position.Each touch control component of present embodiment is provided with signal read element 56, therefore can detect the input signal of a plurality of positions on the same
time cover plate54, so touch control type electro photoluminescence display panel of the
present invention50 can be supported function of multi-spot touch.
54 optionally is provided with
second separation material74 in addition, be arranged on
cover plate54 in the face of in the
non-display area532 of a side of
substrate52 and often do not contacting with
substrate52, and the position of
substrate52 corresponding
second separation materials74 is provided with the second separation material base 74A.
Second separation material74 is as the usefulness of auxiliary air gap thing (sub spacer), and its function causes
cover plate54 or other element impaired can avoiding
cover plate54 to produce excessive deformation when
cover plate54 is subjected to pressed by external force.In the present embodiment,
first separation material68, touch-control separation material 70 and
second separation material74 are preferably elastic material, and can use same technology to be made simultaneously, so
first separation material68, touch-control separation material 70 and
second separation material74 may have equal height under this situation.Because promptly need contacting to make between
substrate52 and the
cover plate54 often with
substrate52,
first separation material68 keeps constant spacing, touch-control separation material 70 does not contact with
substrate52 often can bring into play inducing function when
cover plate54 is subjected to pressed by external force, and
second separation material74 does not contact the effect that buffering is pushed of can bringing into play yet with
substrate52 often, therefore have under the embodiment of equal height at present embodiment
first separation material68, touch-control separation material 70 and
second separation material74, the mode that the present embodiment utilization changes the thickness of diverse location on the
substrate52 reaches above-mentioned requirements.In the present embodiment,
substrate52 has first thickness in the position of the first
separation material base68A of corresponding
first separation material68,
substrate52 has second thickness in the position of the second
separation material base74A of corresponding
second separation material74,
substrate52 has the 3rd thickness in the position of the
sensing pad58 of corresponding touch-control separation material 70, and first thickness is greater than second thickness and the 3rd thickness, second thickness then can greater than, be less than or equal to the 3rd thickness, the
separation material68 of winning is contacted with
substrate52, and
second separation material74 and touch-control separation material 70 keep not and
substrate52 state of contact.Yet embodiments of the present invention are not as limit, and the different gap of in other words above-mentioned
first separation material68, touch-control separation material 70 and
second separation material74 also can be reached by the practice that makes
first separation material68, touch-control separation material 70 and
second separation material74 have differing heights.
The touch control type electro photoluminescence display panel of the foregoing description is the vertical bar formula, but application of the present invention is as limit, and can be other form.Please refer to Fig. 4.Fig. 4 is the synoptic diagram of another preferred embodiment of touch control type electro photoluminescence display panel of the present invention.As shown in Figure 4, the pixel arrangement of the touch control type electro photoluminescence display panel of present embodiment is three gate formulas (tri-gate type), its pixel arrangement and previous embodiment are different, with three the same data line DL of the common connection of pixel, so design can be saved the power consumption of data, reaches whole effect of saving power consumption.Therefore other main elements such as pixel on-off
element55, signal read element 56,
sensing pad58, electro photo-
luminescent apparatus60, power supply signal line PL, and slightly change the position of signal read line RL
first separation material68, touch-control separation material 70 and
second separation material74 etc., but its function of bringing into play all vertical bar formula pixel arrangement with previous embodiment is identical, so no longer add to give unnecessary details at this.
In sum, touch control type electro photoluminescence display panel of the present invention is incorporated into electric exciting light emitting display panel inside with touch control component, therefore can significantly reduce the thickness of electric exciting light emitting display panel.In addition, touch control type electro photoluminescence display panel of the present invention is the light emitting-type that makes progress, and therefore can promote aperture opening ratio.In addition, touch control type electro photoluminescence display panel of the present invention can be supported the function of single-point and multi-point touch input, and can be applicable to the electric exciting light emitting display panel of various sizes.
The above only is the preferred embodiments of the present invention, and all equivalent variations and modifications of making according to claims of the present invention all should belong to covering scope of the present invention.
Claims (14)
1. touch control type electro photoluminescence display panel comprises:
Substrate, definition has non-display area and viewing area on this substrate, and this substrate comprises:
The pixel switch element is arranged in this viewing area of this substrate;
The signal read element is arranged in this non-display area of this substrate;
Electro photo-luminescent apparatus is arranged in this viewing area, and this electro photo-luminescent apparatus comprises first electrode, second electrode, and light-emitting component is arranged between this first electrode and this second electrode wherein this first electrode and this pixel switch element electric connection;
Sensing pad is arranged in this non-display area of this substrate, and electrically connects with this signal read element; And
Cover plate is oppositely arranged with this substrate, and this cover plate comprises:
At least one first separation material is arranged on this cover plate in the face of a side of this substrate, and is positioned at this non-display area, and makes between this substrate and this cover plate and keep constant spacing;
The touch-control separation material is arranged on this cover plate in the face of the surface of this substrate and to should sensing pad; And
Conductive layer is arranged on the surface of this touch-control separation material in the face of this sensing pad.
2. touch control type electro photoluminescence display panel as claimed in claim 1 also comprises the power supply signal line, is electrically connected to this second electrode.
3. touch control type electro photoluminescence display panel as claimed in claim 1, wherein this electro photo-luminescent apparatus comprises oled device.
4. touch control type electro photoluminescence display panel as claimed in claim 3, wherein this light-emitting component comprises electron transfer layer, organic luminous layer and hole transmission layer.
5. touch control type electro photoluminescence display panel as claimed in claim 1, wherein this conductive layer covers the surface of this cover plate in the face of this substrate.
6. touch control type electro photoluminescence display panel as claimed in claim 1, wherein this conductive layer covers the sidewall of this touch-control separation material.
7. touch control type electro photoluminescence display panel as claimed in claim 1, wherein this first separation material has identical height with this touch-control separation material.
8. touch control type electro photoluminescence display panel as claimed in claim 7, wherein this substrate has first thickness to position that should first separation material.
9. touch control type electro photoluminescence display panel as claimed in claim 8, also comprise at least one second separation material, be arranged on this cover plate in the face of a side of this substrate, and be positioned at this non-display area, and this substrate has second thickness to position that should second separation material.
10. touch control type electro photoluminescence display panel as claimed in claim 9, wherein this substrate has the 3rd thickness to position that should the touch-control separation material.
11. touch control type electro photoluminescence display panel as claimed in claim 10, wherein this first thickness is greater than this second thickness and the 3rd thickness.
12. touch control type electro photoluminescence display panel as claimed in claim 1, wherein this touch-control separation material comprises elastic material.
13. touch control type electro photoluminescence display panel as claimed in claim 1 also comprises frame glue, is connected between this substrate and this cover plate.
14. touch control type electro photoluminescence display panel as claimed in claim 1, wherein this conductive layer electrically connects common current potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810133914XA CN101308429B (en) | 2008-07-15 | 2008-07-15 | Touch control type electro-excitation light display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810133914XA CN101308429B (en) | 2008-07-15 | 2008-07-15 | Touch control type electro-excitation light display panel |
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| Publication Number | Publication Date |
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| CN101308429B true CN101308429B (en) | 2010-06-02 |
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* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102436107B (en) * | 2009-03-26 | 2014-06-18 | 友达光电股份有限公司 | Liquid crystal display device and control method thereof |
| CN102566837A (en) * | 2010-12-17 | 2012-07-11 | 东莞联胜液晶显示器有限公司 | touch display device |
| CN103531106B (en) | 2013-10-28 | 2015-06-03 | 京东方科技集团股份有限公司 | Active matrix and organic light emission diode displaying back plate and active and organic light emitting diode displaying equipment |
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|---|---|---|---|---|
| CN101109859A (en) * | 2007-09-12 | 2008-01-23 | 友达光电股份有限公司 | touch panel |
| CN101149502A (en) * | 2007-11-02 | 2008-03-26 | 友达光电股份有限公司 | Touch control type flat panel display and manufacturing method thereof |
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Patent Citations (2)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109859A (en) * | 2007-09-12 | 2008-01-23 | 友达光电股份有限公司 | touch panel |
| CN101149502A (en) * | 2007-11-02 | 2008-03-26 | 友达光电股份有限公司 | Touch control type flat panel display and manufacturing method thereof |
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