CN110764654A - Display panel, writing display device and display method thereof - Google Patents
Display panel, writing display device and display method thereof Download PDFInfo
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- CN110764654A CN110764654A CN201911049520.0A CN201911049520A CN110764654A CN 110764654 A CN110764654 A CN 110764654A CN 201911049520 A CN201911049520 A CN 201911049520A CN 110764654 A CN110764654 A CN 110764654A
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- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 150000001988 diarylethenes Chemical class 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 1
- 241001422033 Thestylus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
Abstract
The embodiment of the invention provides a display panel, a writing display device and a display method thereof, wherein the display panel comprises: a first substrate; the point light source control circuit layer is arranged on the first substrate; the point light sources are arranged on one side, far away from the first substrate, of the point light source control circuit layer; the point light source control circuit layer is configured to control the turning on or off of each point light source respectively; the photochromic layer is arranged on one side of the point light source far away from the point light source control circuit layer; the touch positioning layer is arranged on one side of the photochromic layer away from the point light source; the second substrate is arranged on one side, far away from the photochromic layer, of the touch positioning layer. According to the embodiment of the invention, the color of the electronic blackboard can be enriched by adding the photochromic layer, and the electronic blackboard can display stable color content due to the stable color of the photochromic layer.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a writing display device and a display method thereof.
Background
At present, along with the continuous progress and development of society, the electronic blackboard becomes the choice of more education and business people gradually; the traditional blackboard is written by chalk, cannot be automatically erased, brings a large amount of dust pollution and harms the health of a user. In pursuit of more efficient and intelligent teaching effects, electronic blackboards have begun to gradually move into class.
Disclosure of Invention
One aspect of the present invention provides a display panel including:
a first substrate;
the point light source control circuit layer is arranged on the first substrate;
the point light sources are arranged on one side, far away from the first substrate, of the point light source control circuit layer; the point light source control circuit layer is configured to control the on or off of each point light source respectively;
the photochromic layer is arranged on one side of the point light source far away from the point light source control circuit layer;
the touch positioning layer is arranged on one side, away from the point light source, of the photochromic layer;
the second substrate is arranged on one side, far away from the photochromic layer, of the touch positioning layer.
Optionally, the photochromic layer comprises: the photochromic device comprises a plurality of photochromic units, wherein a black matrix is arranged between the photochromic units; and black matrixes are also arranged between the point light sources, the photochromic units correspond to the point light sources one by one, and the photochromic units are configured to change color under the excitation of the point light sources.
Optionally, the point light source is an ultraviolet light emitting diode.
Optionally, the method further comprises: an ultraviolet absorbing layer;
the ultraviolet absorption layer is arranged between the photochromic layer and the touch positioning layer and used for absorbing ultraviolet light.
Optionally, the material of the photochromic unit comprises: diarylethene materials.
Optionally, the system further comprises a control module;
the control module is electrically connected with the point light source control circuit layer and the touch positioning layer respectively; the touch control circuit layer is configured to determine an input instruction according to a detection signal and positioning information input by the touch control positioning layer, and control the point light source control circuit layer to open or close the corresponding point light source according to the determined input instruction and the positioning information.
Optionally, the control module is packaged around the display panel.
A second aspect of the present invention provides a writing display device, comprising the display panel and a writing pen as described above;
the writing pen is configured to contact the second substrate and output different signals to the display panel, so that the touch positioning layer obtains the detection signal and the positioning information.
Optionally, the signal comprises a voltage signal, the stylus comprising: the device comprises a functional module, a control circuit and an output module;
the functional module is configured to output a corresponding control signal to the control circuit according to a user selection mode;
the control circuit configured to output a voltage signal corresponding to the control signal to the output module;
the output module is configured to output the voltage signal to the display panel.
A third aspect of the present invention provides a display method for a writing display device, which is applied to the writing display device, the method comprising:
when the writing pen contacts the display panel, the display panel detects an input signal of the writing pen to obtain a detection signal and positioning information;
determining an input instruction corresponding to the detection signal;
and controlling to open or close the corresponding point light source according to the determined input instruction and the positioning information.
An embodiment of the present invention provides a display panel, including: a first substrate; the point light source control circuit layer is arranged on the first substrate; the point light sources are arranged on one side, far away from the first substrate, of the point light source control circuit layer; the point light source control circuit layer is configured to control the on or off of each point light source respectively; the photochromic layer is arranged on one side of the point light source far away from the point light source control circuit layer; the touch positioning layer is arranged on one side, away from the point light source, of the photochromic layer; the second substrate is arranged on one side, far away from the photochromic layer, of the touch positioning layer. The embodiment of the invention can enrich the colors of the electronic blackboard by adding the photochromic layer, and the electronic blackboard can display stable color contents due to the stable color of the photochromic layer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a writing display device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a writing pen according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a display method of a writing display apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, there is shown a display panel 10 including:
a first substrate 11.
In the embodiment of the invention, the first substrate is a glass substrate or a PMMA (polymethyl methacrylate) substrate, and has good light transmission performance
A point light source control circuit layer 12, wherein the point light source control circuit layer 12 is disposed on the first substrate 11.
A plurality of point light sources 13, wherein the point light sources 13 are arranged on one side of the point light source control circuit layer 12 far away from the first substrate 11; wherein the point light source control circuit layer 12 is configured to control on or off of each of the point light sources 13, respectively.
In the embodiment of the present invention, the point light source control circuit layer 12 is a control circuit trace of the point light source, and controls the point light source to be turned on or turned off.
And the photochromic layer 14 is arranged on one side of the point light source 13 far away from the point light source control circuit layer 12.
In the embodiment of the invention, when the point light source is started, the photochromic unit at the position corresponding to the point light source absorbs the ultraviolet light to change the color, and the visible light generated by the point light source enables the brightness of the color change area to be higher than that of other areas, thereby realizing the display function of the display panel. When the point light source is closed, the photochromic unit at the position corresponding to the point light source is maintained in the original state and does not display at the position corresponding to the display panel,
and the touch positioning layer 15 is arranged on one side of the photochromic layer 14 far away from the point light source 13.
In the embodiment of the present invention, the touch positioning layer 15 is a transparent film capable of accurately sensing the touch of an object through the second substrate. The high-temperature-resistant and corrosion-resistant flexible PET film is mainly composed of 4 parts, namely a PET film (polyethylene terephthalate, a high-temperature-resistant and corrosion-resistant transparent flexible plastic), a nano wire (a superfine wire prepared by sintering metal nano particles), a control circuit board and driving software.
The working principle of the touch positioning layer 15 is mutual capacitance.
In the embodiment of the present invention, the touch positioning layer 15 is obtained by splicing a plurality of touch positioning layers to have the size of an electronic blackboard.
A second substrate 16, wherein the second substrate 16 is disposed on a side of the touch positioning layer 15 away from the photochromic layer 14.
In the embodiment of the invention, the second substrate is a glass substrate or a PMMA (polymethyl methacrylate) substrate, and has good light transmittance.
In an embodiment of the present invention, the photochromic layer 14 includes: a plurality of photochromic units 141, wherein a black matrix 142 is disposed between the photochromic units 141; a black matrix is also arranged between the point light sources 13, the photochromic units 141 are in one-to-one correspondence with the positions of the point light sources 13, and the photochromic units are configured to change color under excitation of the point light sources.
The photochromic material is a phenomenon in which the optical properties (reflectivity, transmittance, absorption rate, etc.) of the material undergo a stable and reversible color change under the action of an external condition, and the appearance shows a reversible change in color and transparency. Photochromic materials are photochromic materials that change color and transparency under the action of light of a certain wavelength and intensity.
The photochromic materials are various, the discoloration principle of inorganic materials is different from that of organic materials, and the photochromic effect of a typical inorganic system is generally accompanied by reversible oxidation-reduction reaction; photochromism of organic systems also often accompanies many of the processes associated with photochemical reactions that result in some change in molecular structure, mainly by: valence bond isomerism, cis-trans isomerism, bond cleavage, polymerization, a peri-reaction and the like, so that the response speed of the organic material is higher than that of the inorganic photochromic material. The properties of the color-changing material are stable and this change is reversible, thanks to these excellent physicochemical properties.
In the embodiment of the present invention, it is preferable that the photochromic unit is made of an organic photochromic material.
In the present embodiment, the point light source 13 is a UV-LED (ultraviolet light emitting diode). Wherein the UV-LED emits ultraviolet light.
In the embodiment of the present invention, the method further includes: an ultraviolet absorbing layer 17;
the ultraviolet absorption layer 17 is disposed between the photochromic layer 14 and the touch positioning layer 15, and is configured to absorb ultraviolet light.
The ultraviolet absorption layer is mainly used for absorbing residual ultraviolet light penetrating through the photochromic layer and can prevent the ultraviolet light from emitting out of the display panel to hurt a human body.
In an embodiment of the present invention, the material of the photochromic unit 141 includes: diarylethene materials.
The diaryl ethylene material has good thermal stability, chemical stability, excellent sensitivity and fatigue resistance, and different color changes can be realized by introducing different substituents.
In the present embodiment, a control module 18 is also included;
the control module 18 is electrically connected with the point light source control circuit layer 12 and the touch positioning layer 15 respectively; and the touch control circuit layer is configured to determine an input instruction according to the detection signal and the positioning information input by the touch positioning layer 15, and control the point light source control circuit layer 12 to turn on or turn off the corresponding point light source 13 according to the determined input instruction and the positioning information.
In the embodiment of the present invention, the control module 18 is packaged around the display panel.
Wherein the control module 18 is enclosed within the frame.
The embodiment of the invention can enrich the colors of the electronic blackboard by adding the photochromic layer, and can emit stable color effects and enrich the electronic blackboard due to the stable color of the photochromic layer.
Example two
Referring to fig. 2, there is shown a writing display device according to an embodiment of the present invention, including the display panel 10 and the writing pen 20 as described in any one of the above items;
in fig. 2, the AA area is a writing area of the writing display device.
Referring to fig. 3, the writing pen 20 is configured to contact the second substrate 16 and output different signals to the display panel 10, so that the touch positioning layer 15 obtains the detection signal and the positioning information.
In an embodiment of the present invention, the signal includes a voltage signal, and the writing pen 20 includes: a functional module 21, a control circuit 22 and an output module 23;
the functional module 21 is configured to output a corresponding control signal to the control circuit 22 according to a user selection mode;
the control circuit 22 configured to output a voltage signal corresponding to the control signal to the output module 23;
the output module 23 is configured to output the voltage signal to the display panel 10.
Wherein, the functional module 21 comprises a writing module 211 and an erasing module 212.
In the embodiment of the present invention, the user may select to press the corresponding writing module 211 or erasing module 212 to write or erase on the display panel AA area.
In the embodiment of the present invention, for example, when the user presses the writing module 211, the control circuit 22 receives the control signal output by the writing module 211, and then outputs the corresponding first voltage signal to the output module 23, when the writing pen 20 contacts the display panel 10, the touch positioning layer 15 of the display panel 10 receives the first voltage signal to generate the first capacitance value, and the control module 18 controls the point light source control circuit layer to turn on the point light source at the corresponding position according to the first capacitance value and the touched position information, so that the point light source emits the ultraviolet light to change the color of the photochromic layer, thereby performing color writing.
When the user presses the erasing module 212, the control circuit 22 receives the control signal output by the erasing module 212, and then outputs the corresponding second voltage signal to the output module 23, when the writing pen 20 contacts the display panel 10, the touch positioning layer 15 of the display panel 10 receives the second voltage signal to generate a second capacitance value, and the control module 18 controls the point light source control circuit layer to close the point light source at the corresponding position according to the second capacitance value and the touched position information, so as to implement the erasing function of the writing display device.
The writing display device provided by the embodiment of the invention adopts the capacitive stylus pen to realize the function of the handwriting electronic blackboard, has a simple structure, and can be applied to various occasions such as classrooms, meeting rooms and the like.
EXAMPLE III
Referring to fig. 4, a flow chart illustrating steps of a display method of a writing display apparatus according to an embodiment of the present invention is shown; the method is applied to the writing display device described in the second embodiment, and specifically comprises the following steps:
step 301, when the writing pen contacts the display panel, the display panel detects a signal input by the writing pen to obtain a detection signal and positioning information;
in the embodiment of the invention, a writing module of a writing pen corresponds to a first voltage signal, and an erasing unit corresponds to a second voltage signal; the first voltage signal corresponds to a first capacitance signal, and the second voltage signal corresponds to a second capacitance signal.
The display panel inputs a first voltage signal or a second voltage signal through the writing pen, or the obtained detection signal is a corresponding first capacitance signal or a corresponding second capacitance signal.
The first capacitance signal is used for writing an instruction when the instruction is input corresponding to the first capacitance signal, and the second capacitance signal is used for erasing the instruction when the instruction is input corresponding to the second capacitance signal.
And step 303, controlling to open or close the corresponding point light source according to the determined input instruction and the positioning information.
In the embodiment of the invention, when a writing pen receives a pressing operation on the writing module, the control circuit acquires an input signal of the writing module and outputs a first voltage signal to an output module according to the input signal;
when the pressing operation of the erasing unit is received, the control circuit obtains an input signal of the erasing unit and outputs a second voltage signal to an output module according to the input signal;
when the capacitance signal is a first capacitance signal, the control module acquires the first capacitance signal and the position information, and enables the point light source control circuit layer to control the point light source at the corresponding position to be started according to the first capacitance signal and the position information;
when the capacitance signal is a second capacitance signal, the control module acquires the second capacitance signal and the position information, and controls the point light source at the corresponding position to be closed by the point light source control circuit layer according to the second capacitance signal and the position information.
The display method of the writing display device provided by the embodiment of the invention comprises the following steps: when the writing pen contacts the display panel, the display panel detects an input signal of the writing pen to obtain a detection signal and positioning information; determining an input instruction corresponding to the detection signal; and controlling to open or close the corresponding point light source according to the determined input instruction and the positioning information. According to the embodiment of the invention, writing on the display panel can be realized by simply controlling the writing pen, so that the writing efficiency is improved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A display panel, comprising:
a first substrate;
the point light source control circuit layer is arranged on the first substrate;
the point light sources are arranged on one side, far away from the first substrate, of the point light source control circuit layer; the point light source control circuit layer is configured to control the on or off of each point light source respectively;
the photochromic layer is arranged on one side of the point light source far away from the point light source control circuit layer;
the touch positioning layer is arranged on one side, away from the point light source, of the photochromic layer;
the second substrate is arranged on one side, far away from the photochromic layer, of the touch positioning layer.
2. The display panel of claim 1, wherein the photochromic layer comprises: the photochromic device comprises a plurality of photochromic units, wherein a black matrix is arranged between the photochromic units; and black matrixes are also arranged between the point light sources, the photochromic units correspond to the point light sources one by one, and the photochromic units are configured to change color under the excitation of the point light sources.
3. The display panel of claim 1, wherein the point light source is an ultraviolet light emitting diode.
4. The display panel according to claim 3, further comprising: an ultraviolet absorbing layer;
the ultraviolet absorption layer is arranged between the photochromic layer and the touch positioning layer and used for absorbing ultraviolet light.
5. The display panel of claim 2, wherein the material of the photochromic unit comprises: diarylethene materials.
6. The display panel according to any one of claims 1 to 5, further comprising a control module;
the control module is electrically connected with the point light source control circuit layer and the touch positioning layer respectively; the touch control circuit layer is configured to determine an input instruction according to a detection signal and positioning information input by the touch control positioning layer, and control the point light source control circuit layer to open or close the corresponding point light source according to the determined input instruction and the positioning information.
7. The display panel of claim 6, wherein the control module is encapsulated around the display panel.
8. A writing display device comprising the display panel according to claim 6 or 7 and a writing pen;
the writing pen is configured to contact the second substrate and output a signal to the display panel, so that the touch positioning layer obtains the detection signal and the positioning information.
9. A writing display device according to claim 8, wherein the signal comprises a voltage signal, the writing pen comprising: the device comprises a functional module, a control circuit and an output module;
the functional module is configured to output a corresponding control signal to the control circuit according to a user selection mode;
the control circuit configured to output a voltage signal corresponding to the control signal to the output module;
the output module is configured to output the voltage signal to the display panel.
10. A display method of a writing display device, which is applied to the writing display device of claim 8 or 9, the method comprising:
when the writing pen contacts the display panel, the display panel detects an input signal of the writing pen to obtain a detection signal and positioning information;
determining an input instruction corresponding to the detection signal;
and controlling to open or close the corresponding point light source according to the determined input instruction and the positioning information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911049520.0A CN110764654B (en) | 2019-10-31 | 2019-10-31 | Display panel, writing display device and display method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911049520.0A CN110764654B (en) | 2019-10-31 | 2019-10-31 | Display panel, writing display device and display method thereof |
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| CN110764654B CN110764654B (en) | 2024-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112650414A (en) * | 2020-12-30 | 2021-04-13 | 安徽鸿程光电有限公司 | Touch device, touch point positioning method, module, device and medium |
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| JP2007003699A (en) * | 2005-06-22 | 2007-01-11 | Fuji Xerox Co Ltd | Image display device |
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| CN110764654B (en) | 2024-04-12 |
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