CN117215420A - Pen point module device for optical electronic pen - Google Patents
Pen point module device for optical electronic pen Download PDFInfo
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- CN117215420A CN117215420A CN202211660659.0A CN202211660659A CN117215420A CN 117215420 A CN117215420 A CN 117215420A CN 202211660659 A CN202211660659 A CN 202211660659A CN 117215420 A CN117215420 A CN 117215420A
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- pen
- pen point
- module device
- reflecting plate
- tip
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- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 11
- 238000004891 communication Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000003909 pattern recognition Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Facsimile Heads (AREA)
- Pens And Brushes (AREA)
Abstract
A nib module device for an optical electronic pen. The present invention relates to a pen point module device for improving the recognition rate of the movement track of an optical electronic pen. In particular, the present invention relates to a technique for improving a converging path of IR light reflected by a panel by making a color of a pen tip white to achieve excellent reflection of an IR light source, and for greatly improving a tilting degree of freedom in which a user can tilt at various angles during use of an optical electronic pen, as compared with the related art.
Description
Technical Field
The present invention relates to a pen point module device for improving the recognition rate of the movement track of an optical electronic pen.
More specifically, the present invention relates to a technique for increasing the degree to which IR light reflected by a panel is condensed to an IR light receiving member. And in particular to techniques for reducing the external divergence of IR reflected from a panel as the converging path of the IR reflected from the panel is improved.
The present invention also relates to a technique for greatly improving the degree of freedom of tilting at various angles during use of an optical electronic pen by a user, as compared with the prior art.
Background
In general, electronic pen functions are indispensable in high-end products such as tablet PCs, laptop computers, smartphones, and the like in recent years, and diversified and convenient note application (App) technologies such as Notability, goodNotes are also greatly developed, whereby pen solution demands for IT products are drastically increasing.
As for IT displays, high-end products such as folding screens and sliding screens that maximize portability are commercially available from flat panel displays centered on simple viewing.
Under such circumstances, attempts have been made to develop an optical electronic pen as a pen solution for a display. The optical electronic pen is only required to form a dot pattern (dot pattern) or a position code in the form of a dot pattern using a transparent film or the like inside the display panel, and therefore, even if the display size is increased, the pen characteristics are hardly deteriorated or the manufacturing cost is hardly increased.
However, when writing is performed on the display panel, the movement trace of the optical electronic pen is determined by irradiating the display panel with infrared rays and analyzing reflected light of the infrared rays in order to sense the movement trace of the movement, but the recognition rate of the movement trace is lowered due to the decrease in the receiving rate of the reflected light.
Disclosure of Invention
Problems to be solved by the invention
The invention aims to provide a pen point module device for an optical electronic pen, which can improve the recognition rate of the moving track of the optical electronic pen.
Further, an object of the present invention is to provide a pen head module device for an optical electronic pen that increases the degree of converging IR light reflected after being irradiated to a panel to an IR light receiving member. In particular, a technique is provided that reduces the external divergence of the IR reflected from the panel as the converging path of the IR reflected from the panel is improved.
Further, an object of the present invention is to provide a pen head module device for an optical electronic pen, which can greatly improve the degree of freedom of inclination at various angles during the use of the optical electronic pen by a user, as compared with the conventional pen head module device.
Means for solving the problems
In order to achieve the above object, the present invention provides a pen point module device for an optical electronic pen, comprising: a pen body part 110 constituting a body of the electronic pen; an IR light emitting part that emits light toward the panel surface in order to recognize the position code; and an IR light receiving member that receives reflected light reflected on the panel surface.
The pen point module device for the optical electronic pen comprises: the pen point member 121 includes: a pen point part 121a located at the front end of the pen point part 121 itself body; a reflection plate member 121b that extends from the pen tip member 121a in a wide plane along the direction of the pen body member 110 to form a smooth and flat plate-like reflection surface; and wing members 121c formed by bending both ends of the reflection plate member 121b toward the reflection surface, respectively, so as to guide the infrared rays reflected from the panel to converge toward the IR light receiving member; and a pen point coupling part 122 coupled to the pen body part 110 in a state of being clamped (grip) with the pen point part 121, thereby coupling the pen point part 121 and the pen body part 110.
At this time, the reflecting plate member 121b is preferably formed to be gradually inclined toward the inner diameter center of the pen body member 110 as approaching the pen body member 110 from the pen tip member 121 a.
At this time, it is preferable that the reflective surfaces of the reflective plate member 121b and the wing member 121c are formed in white to achieve IR light reflection.
In the present invention, the pen point coupling member 122 includes: a body connection part 122a connected to one end of the pen body part 110; a pen cap member 122b formed to surround the tip end portion of the pen point member 121 in a state of being extended from one end portion of the body connection member 122 a; a partition wall member 122c dividing the body connecting member 122a and the nib cover member 122b at an inner side of the nib cover member 122b corresponding to between the body connecting member 122a and the nib cover member 122 b.
The pen point member 121 further includes: a plunger member 121d formed by extending from one end of the reflecting plate member 121b corresponding to the direction in which the pen body member 110 is located.
The partition wall member 122c includes: a rod holding hole member 122c_1 formed so that the body of the partition wall member 122c itself penetrates the cross-sectional shape of the rod insertion member 121d, and holds the outer surface of the rod insertion member 121 d; and a reflected light guide hole member 122c_2 formed by penetrating the body of the partition wall member 122c itself at a position adjacent to the rod clamping hole member 122c_1, and guiding the infrared rays reflected by the reflecting plate member 121b to converge to the IR light receiving member.
Effects of the invention
The invention has the following advantages: the pen point component is provided with a pen point component, a reflecting plate component and a wing component, thereby improving the recognition rate of the moving track of the optical electronic pen.
In addition, the invention has the following advantages: the reflection plate member has a smooth and flat plate-like reflection surface, thereby reducing distortion of reflected light.
In addition, the invention has the following advantages: the reflecting plate member is formed to be gradually inclined toward the inner diameter center of the pen body member as approaching the pen body member, so that even when a user performs writing by inclining the pen point module device at a large angle on the panel, the effective component of the infrared ray reflected from the panel to be transmitted to the IR light receiving module can be improved.
In addition, the invention has the following advantages: the nib member, the reflecting plate member, the wing member, and the plunger member are integrally molded, so that the risk of losing or malfunctioning of individual structures can be reduced, for example, during the process of removing or coupling the nib member for replacement or the like.
Drawings
FIG. 1 is a perspective view showing the nib module device of the present invention.
Fig. 2 is a perspective view illustrating fig. 1 from another angle.
Fig. 3 is a diagram illustrating fig. 2 from another angle.
Fig. 4 is a view of fig. 3 from below and upward.
Fig. 5 is a view in which a part of the structure is separated and illustrated in fig. 1.
Fig. 6 is an enlarged view of fig. 5 with a part thereof taken.
Fig. 7 is an enlarged view of fig. 2 with a part cut away.
Fig. 8 is a view illustrating a part of the structure separated in fig. 2.
Fig. 9 is an enlarged view of fig. 8 with a part thereof taken.
Fig. 10 is an enlarged view of fig. 3 with a part cut away.
Fig. 11 is a view in which a part of the structure is separated in fig. 4.
FIG. 12 is an illustration showing a state of use on a faceplate by selecting a part of the structure in the nib module device of the present invention.
FIG. 13 is an exemplary view showing a state in which the nib module device of the present invention is moved on the faceplate.
FIG. 14 is another exemplary view showing a state in which the nib module device of the present invention is moved on the faceplate.
FIG. 15 is an explanatory diagram showing a comparison of the dot pattern recognition performance according to the material characteristics of the nib member in the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a perspective view showing a nib module device of the present invention, fig. 2 is a perspective view showing fig. 1 from another angle, fig. 3 is a view showing fig. 2 from another angle, fig. 4 is a view showing fig. 3 from below and upwards, fig. 5 is a view showing a part of the structure separated in fig. 1, fig. 6 is a view showing a part of the structure separated in fig. 5 and enlarged, fig. 7 is a view showing a part of the structure separated in fig. 2 and enlarged, fig. 8 is a view showing a part of the structure separated in fig. 2, fig. 10 is a view showing a part of the structure separated in fig. 3 and enlarged, and fig. 11 is a view showing a part of the structure separated in fig. 4.
Referring to fig. 1 to 11, the optical electronic pen of the present invention includes a pen body member 110, a pen head module member 120, an IR light emitting member (not shown), and an IR light receiving member (not shown).
The pen body part 110 is formed in a bar shape as an element constituting a body of the electronic pen so as to be grippable by a user.
The nib module part 120 is connected to one end of the pen body part 110, and is slidable on the display panel according to a user's operation.
The IR light emitting means (not shown) is a component constituted by an infrared LED (light emitting diode) or a VCSEL (vertical cavity surface emitting laser) element and irradiates light onto the panel in order to recognize the position code. The IR light emitting member is mounted on the inside of the pen body member 110, and irradiates infrared rays to the pen point module member 120 side so as to reach the display panel.
As the IR light receiving means (not shown), an infrared camera, which is a component for receiving reflected light reflected from the surface of the display panel to recognize the position code of the panel, is preferably used.
On the other hand, the IR light receiving part can receive the reflected light irradiated to the inside of the effective light receiving area (FOV) of the IR light receiving part, and the structure of the pen point module device is improved to effectively reach the FOV by the IR reflected light.
For this purpose, the nib module part 120 is provided with a nib part 121 and a nib coupling part 122. The nib member 121 is connected to the pen body member 110 through the nib coupling member 122.
As shown in fig. 5 to 7, the pen point member 121 includes a pen point member 121a, a reflecting plate member 121b, a wing member 121c, and a plunger member 121d.
The nib member 121a is located at a front end portion of the nib member 121 opposite to the pen body member 110.
As shown in fig. 7 to 10, the reflecting plate member 121b extends from the pen tip member 121a toward the pen body member 110 side in a wide plane shape to form a smooth and flat plate-like reflecting surface.
Here, the reflecting plate member 121b is preferably formed to be gradually inclined toward the inner diameter center portion of the pen body member 110 as approaching the pen body member 110 from the pen tip member 121 a. As a result, as shown in fig. 12, even when the user performs writing by tilting the pen point module device on the panel by a large angle, the effective component of the infrared ray reflected from the panel to the IR light receiving module can be improved.
As shown in fig. 10, the reflecting plate member 121b is preferably formed so that the area thereof gradually becomes wider as it approaches the pen body member 110 from the pen tip member 121 a. As a result, as shown in fig. 12, even when the user tilts the pen point module device on the panel by a large angle to write, the effective component of the infrared ray reflected from the panel to the IR light receiving module can be further improved.
As shown in fig. 12, the user can tilt the reflecting plate member 121b of the nib module device on the panel by a large angle in a direction facing the panel. In addition, as shown in fig. 13 and 14, the reflecting plate member 121b may be moved at an angle twisted with respect to the panel. In view of this, as shown in fig. 10, it is preferable that the reflecting plate member 121b is configured so that the area thereof gradually becomes wider as it approaches the pen body member 110 from the pen tip member 121 a.
On the other hand, as shown in fig. 7 and 10, the surface of the reflecting plate member 121b is formed in a smooth and flat shape, so that the phenomenon of distortion in the process of transmitting the infrared rays reflected from the panel to the IR light receiving member can be reduced.
As shown in fig. 7 to 10, the wing member 121c is formed by bending both ends of the reflecting plate member 121b toward the reflecting surface, respectively, so as to guide the infrared ray reflected from the panel to converge toward the IR receiving member.
Preferably, the wing members 121c are integrally molded with the reflecting plate member 121b as both end portions of the reflecting plate member 121b are bent.
As shown in fig. 8 and 9, the plunger member 121d extends from one end of the reflecting plate member 121b toward the side where the pen body member 110 is located, and is integrally formed with the reflecting plate member 121 b.
Here, the plunger member 121d is preferably integrally molded with the reflecting plate member 121 b. That is, the nib member 121a, the reflecting plate member 121b, the wing member 121c, and the plunger member 121d are integrally molded, so that the risk of losing or malfunctioning individual structures during the process of removing or coupling the nib member 121 from or to the pen body member 110 for replacement or the like can be reduced.
As shown in fig. 1 to 9, the nib coupling member 122 is connected to the pen body member 110 in a state of sandwiching the nib member 121 to couple the nib member 121 and the pen body member 110.
As shown in fig. 6 and 9, the tip coupling member 122 includes a body coupling member 122a, a tip cover member 122b, and a partition wall member 122c.
As shown in fig. 6 and 9, the body connecting member 122a is formed protruding from the body of the nib coupling member 122 in a skirt (ski) shape so as to be connectable with an end of the pen body member 110.
As shown in fig. 6 and 9, the tip cover member 122b is configured to surround the tip end portion of the tip member 121 in a state of being formed to extend from one end portion of the main body connecting member 122a in a skirt plate shape.
As shown in fig. 4 and 11, the partition wall member 122c divides the body connecting member 122a and the nib cover member 122b on the inner side of the nib cover member 122b corresponding to between the body connecting member 122a and the nib cover member 122 b.
On the other hand, referring to fig. 4 and 11, the partition wall member 122c is provided with a rod holding hole member 122c_1 and a reflected light guide hole member 122c_2.
As shown in fig. 4 to 6 and 11, the rod holding hole member 122c_1 is formed so that the body of the partition wall member 122c penetrates through the cross-sectional shape of the rod member 121d, and holds the outer surface of the rod member 122 d.
As a result, the nib member 110 pressed on the panel in a state of being coupled with the pen body member 110 stably maintains its coupled state.
The reflected light guide hole member 122c_2 is formed by penetrating the body of the partition wall member 122c at a position adjacent to the rod holding hole member 122c_1, and guides the infrared rays reflected by the reflecting plate member 121b to be converged to the IR light receiving member satisfactorily.
Next, preferred embodiments of the present invention in which the materials of the reflecting plate member 121b and the wing member 121c are selected will be described.
In general, an image sensor used in an optical electronic pen operates to analyze IR reflected light and recognize a dot pattern. Therefore, in the case where the display panel forms an infrared reflection surface and a dot pattern made of an infrared absorbing material is arranged thereon, the identification of the position code is most preferable.
However, since only a dot pattern made of an infrared-absorbing material is formed on a display panel of an IT product such as a smart phone or a tablet PC, and an infrared reflection surface for reflecting IR light to an image sensor is not present, IT is difficult to ensure performance of an optical electronic pen.
The invention relates to a shape and material characteristics of a pen head of an electronic pen for improving the recognition rate of a dot pattern. The shape of the tip has been described with reference to fig. 7 to 10, and the material properties of the tip are described below.
In the pen point shape used in the present invention, it is preferable that the reflection plate member 121b and the wing member 121c reflect the IR light well and guide the IR light to the IR light receiving member in order to improve the recognition rate of the position code. In general, aluminum, silver, and gold are known to have the highest infrared reflectance, and in the case of a white material, the infrared reflectance is relatively good, though not as good as that of the above-mentioned materials.
Fig. 15 is an explanatory diagram showing a comparison of dot pattern recognition performance of the optical electronic pen according to the material characteristics of the pen point member 121, in particular, the reflecting plate member 121b and the wing member 121c in the present invention.
First, fig. 15 (a) shows an image obtained by the image sensor of the electronic pen in the case where the reflecting surfaces of the reflecting plate member 121b and the wing member 121c are made of an aluminum material. The infrared reflectance of the aluminum material is too high and the image sensor enters a saturated state, so that the dot pattern is not easily displayed.
Fig. 15 (b) shows an image obtained by the image sensor of the electronic pen in the case where the reflection surfaces of the reflection plate member 121b and the wing member 121c are constituted by a white material. The reflective plate member 121b and the wing member 121c are made of a white plastic material or a white paint is applied to the surfaces thereof. In this case, the infrared reflectance of the reflection plate member 121b and the wing member 121c is appropriate to clearly display the dot pattern in the image.
In another aspect, the pen point module device for an optical electronic pen of the present invention may further comprise a power switch part, a battery part, a pressure sensor part, a wireless communication part, and an electronic pen control part.
The power switch part is preferably provided to the pen body part 110 to switch on and off the power supply of the pen head module device according to the user's operation.
The battery member is preferably mounted inside the pen body member 110 to supply power consumed during the operation of the pen head module device.
The pressure sensor part senses pressure occurring when the nib part 121 contacts the upper surface of the panel according to the operation of the user.
The wireless communication section transmits the position coordinates supplied from the electronic pen control section to an external smart terminal device by short-range wireless communication (for example, bluetooth).
The electronic pen control part is preferably mounted on the inside of the pen body part 110 to recognize that the pen point part 121 is moved on the panel by the user based on the pressure information transmitted from the pressure sensor part.
Upon recognizing that the pen point part 121 moves on the panel, the electronic pen control part controls the IR light emitting part to perform an on-operation.
Next, the electronic pen control section extracts the position coordinates of the movement of the pen point section 121 on the panel from the reflected light received through the IR light receiving section and transmits to the wireless communication section.
Claims (3)
1. A pen point module device for an optical electronic pen is provided with: a pen body member (110) that constitutes the body of the electronic pen; an IR light emitting part that emits light toward the panel surface in order to recognize the position code; and an IR light receiving member that receives reflected light reflected on the panel surface,
the nib module device for an optical electronic pen is characterized in that it comprises:
a pen point member (121) is provided with: a pen point member (121 a) located at the front end of the pen point member (121) body; a reflecting plate member (121 b) that extends from the pen tip member (121 a) in a wide plane along the direction of the pen body member (110) to form a smooth and flat plate-like reflecting surface; and wing parts (121 c) which are formed by bending the two ends of the reflecting plate part (121 b) towards the direction of the reflecting surface respectively, thereby guiding the infrared rays reflected from the panel to converge towards the direction of the IR light receiving part; a kind of electronic device with high-pressure air-conditioning system
A pen point coupling member (122) which is connected to the pen body member (110) in a state of sandwiching the pen point member (121) to couple the pen point member (121) and the pen body member (110),
the tip coupling member (122) is provided with:
a body connection member (122 a) connected to one end of the pen body member (110);
a tip cover member (122 b) that is formed so as to surround the tip end of the tip member (121) in a state of being extended from one end of the body connection member (122 a); a kind of electronic device with high-pressure air-conditioning system
A partition wall member (122 c) that divides the main body connecting member (122 a) and the pen point cover member (122 b) on the inner side of the pen point cover member (122 b) corresponding to the space between the main body connecting member (122 a) and the pen point cover member (122 b),
the pen point member (121) further comprises:
a plunger member (121 d) formed by extending from one end of the reflecting plate member (121 b) corresponding to the direction in which the pen body member (110) is located,
the partition wall member (122 c) is provided with:
a rod clamping hole member (122 c_1) which is formed by penetrating the partition wall member (122 c) itself in correspondence with the cross-sectional shape of the rod insertion member (121 d) and clamps the outer surface of the rod insertion member (121 d); a kind of electronic device with high-pressure air-conditioning system
And a reflected light guide hole member (122c_2) which is formed by penetrating the body of the partition wall member (122 c) at a position adjacent to the rod holding hole member (122c_1) and guides the infrared light reflected by the reflecting plate member (121 b) to converge on the IR light receiving member.
2. A pen head module device for an optical electronic pen according to claim 1, wherein,
the reflecting plate member (121 b) is formed so as to be gradually inclined toward the inner diameter center of the pen body member (110) from the pen tip member (121 a) toward the pen body member (110).
3. A pen head module device for an optical electronic pen according to claim 2, wherein,
the reflection surface of the reflection plate member (121 b) and the reflection surface of the wing member (121 c) are formed in white to realize IR light reflection.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020220001418U KR200495951Y1 (en) | 2022-06-10 | 2022-06-10 | the pen-tip module device for a optical digital pen |
| KR20-2022-0001418 | 2022-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117215420A true CN117215420A (en) | 2023-12-12 |
| CN117215420B CN117215420B (en) | 2024-03-01 |
Family
ID=83445476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211660659.0A Active CN117215420B (en) | 2022-06-10 | 2022-12-23 | Pen point module device for optical electronic pen |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200495951Y1 (en) |
| CN (1) | CN117215420B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102564063B1 (en) * | 2023-02-04 | 2023-08-04 | 주식회사 보나 | optical electronic pen device of multiple pen-tip type |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050076075A (en) * | 2004-01-19 | 2005-07-26 | 삼성전기주식회사 | Pen type optical mouse equipped with the reflector |
| US20060202975A1 (en) * | 2005-03-11 | 2006-09-14 | Aiptek International Inc. | Light guiding apparatus for optical pen |
| JP2010026693A (en) * | 2008-07-17 | 2010-02-04 | Sony Corp | Information input device, image display, and stylus pen |
| US20100141593A1 (en) * | 2008-12-10 | 2010-06-10 | Park Sung-Un | Stylus pen and flat panel display apparatus including the same |
| US20140146015A1 (en) * | 2012-11-27 | 2014-05-29 | Uc-Logic Technology Corp. | Tip element capable of light collection, and light-emitting touch pen incorporating the same for an optical touch device |
| KR200485305Y1 (en) * | 2017-09-11 | 2017-12-19 | (주)딥스원에듀 | Electronic pen for writing on pattern film having dot pattern |
| KR102073000B1 (en) * | 2019-06-21 | 2020-02-04 | 딥스원테크(주) | Electronic pen for writing on pattern film |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102069745B1 (en) * | 2019-05-14 | 2020-01-23 | (주)딥스원테크 | Pentip for multi-direction recognition combinating on electronic pen for writing on pettern film and electronic pen having multi-direction recognition for writing on pattern film |
-
2022
- 2022-06-10 KR KR2020220001418U patent/KR200495951Y1/en active IP Right Grant
- 2022-12-23 CN CN202211660659.0A patent/CN117215420B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050076075A (en) * | 2004-01-19 | 2005-07-26 | 삼성전기주식회사 | Pen type optical mouse equipped with the reflector |
| US20060202975A1 (en) * | 2005-03-11 | 2006-09-14 | Aiptek International Inc. | Light guiding apparatus for optical pen |
| JP2010026693A (en) * | 2008-07-17 | 2010-02-04 | Sony Corp | Information input device, image display, and stylus pen |
| US20100141593A1 (en) * | 2008-12-10 | 2010-06-10 | Park Sung-Un | Stylus pen and flat panel display apparatus including the same |
| US20140146015A1 (en) * | 2012-11-27 | 2014-05-29 | Uc-Logic Technology Corp. | Tip element capable of light collection, and light-emitting touch pen incorporating the same for an optical touch device |
| KR200485305Y1 (en) * | 2017-09-11 | 2017-12-19 | (주)딥스원에듀 | Electronic pen for writing on pattern film having dot pattern |
| KR102073000B1 (en) * | 2019-06-21 | 2020-02-04 | 딥스원테크(주) | Electronic pen for writing on pattern film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117215420B (en) | 2024-03-01 |
| KR200495951Y1 (en) | 2022-09-29 |
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