CN117435079A - Luminous touch control panel - Google Patents
Luminous touch control panel Download PDFInfo
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- CN117435079A CN117435079A CN202211630575.2A CN202211630575A CN117435079A CN 117435079 A CN117435079 A CN 117435079A CN 202211630575 A CN202211630575 A CN 202211630575A CN 117435079 A CN117435079 A CN 117435079A
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- light
- touch
- light guide
- emitting
- emitting elements
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- 239000000758 substrate Substances 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000010147 laser engraving Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- 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
- G06F3/03547—Touch pads, in which fingers can move on a surface
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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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)
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
A luminous touch control panel comprises a substrate, a light guide plate, a circuit board and a plurality of luminous elements. The light guide plate is arranged below the substrate and comprises a plurality of light guide units and a plurality of through holes. Each light guide unit is composed of a plurality of light guide microstructures and is in a strip shape or a linear shape. The through holes are respectively arranged at one side of the light guide unit. The circuit board is arranged under the light guide plate. The circuit board is provided with a touch surface and a non-touch surface. The touch surface is provided with a touch area. The touch control area is provided with a plurality of sensing electrodes. The luminous elements are arranged on the circuit board and are respectively accommodated in the through holes. The light emitted by the light emitting element enters the light guide plate through the inner wall of the through hole, and then is guided to upwards penetrate the substrate through the light guide unit to be emitted. Therefore, the light emitted by each light-emitting element can enter the light guide plate through the inner wall of the corresponding through hole and then be guided to upwards penetrate the substrate through the corresponding light guide unit to be emitted. The light guiding pattern formed by the light guiding units can be made to present a variable pattern by controlling the light emitting elements to emit light or not.
Description
Technical Field
The disclosure relates to a light-emitting touch panel.
Background
The shape of the conventional touch panel device is generally dull, so that manufacturers around the computer have developed a luminous touch panel device with excellent visual effect. The backlight assembly used in the conventional light-emitting touch panel device is composed of two parts, namely a light shielding sheet and a light guide plate from top to bottom.
With the increasing functions, the marks on the touch pad device are also more and more complex. If the key icons only share the same light guide plate, a single key icon cannot be displayed or marked independently. In other words, the light emitting pattern of the same light guide plate is not variable.
Therefore, how to provide a light-emitting touch panel capable of solving the above problems is one of the problems in the industry to be solved by the research and development resources.
Disclosure of Invention
Accordingly, an objective of the present disclosure is to provide a light-emitting touch panel that can solve the above-mentioned problems.
In order to achieve the above objective, according to one embodiment of the present disclosure, a light-emitting touch panel includes a substrate, a light guide plate, a circuit board, and a plurality of light-emitting elements. The light guide plate is arranged below the substrate and comprises a plurality of light guide units and a plurality of through holes. Each light guide unit is composed of a plurality of light guide microstructures and is in a strip shape or a linear shape. The through holes are respectively arranged at one side of the light guide unit. The circuit board is arranged under the light guide plate. The circuit board is provided with a touch surface and a non-touch surface. The touch surface is provided with a touch area. The touch control area is provided with a plurality of sensing electrodes. The luminous elements are arranged on the circuit board and are respectively accommodated in the through holes. The light emitted by the light emitting element enters the light guide plate through the inner wall of the through hole, and then is guided to upwards penetrate the substrate through the light guide unit to be emitted.
In one or more embodiments of the present disclosure, each light emitting element is disposed between sensing electrodes. The light emitting elements and the sensing electrodes have a space therebetween.
In one or more embodiments of the present disclosure, the light-emitting touch pad further includes a light-blocking layer that is opaque. The shading layer is arranged between the substrate and the light guide plate. The shading layer is provided with a plurality of light-transmitting areas. The light transmitting areas are respectively arranged corresponding to the light guide units.
In one or more embodiments of the present disclosure, the light shielding layer has at least one non-transparent region. The non-light-transmitting region is disposed corresponding to the light element.
In one or more embodiments of the present disclosure, a light-tight barrier is provided between any two adjacent light-emitting elements.
In one or more embodiments of the present disclosure, the light guide plate further includes a receiving groove. The retaining wall is accommodated in the accommodating groove.
In one or more embodiments of the present disclosure, a light blocking structure is further disposed between any two adjacent ones of the through holes in the light guide plate.
In one or more embodiments of the present disclosure, the light blocking structure is a laser engraving structure.
In one or more embodiments of the present disclosure, any two adjacent ones of the light guiding units are separated from each other.
In one or more embodiments of the present disclosure, the light guiding units form a light guiding pattern with a rectangular upper portion and a U-shaped lower portion. The number of light guiding units comprised by the light guiding pattern is at least seven.
In one or more embodiments of the present disclosure, at least seven light emitting elements form a light emitting element group. The light emitting elements in the light emitting element group correspond to the light guiding units in the light guiding pattern, respectively.
In one or more embodiments of the present disclosure, the circuit board includes a controller. The controller is configured to emit a signal for controlling each light emitting element in the light emitting element group to emit light or not so that the light guide pattern presents a number. The number is one of 0 to 9.
In one or more embodiments of the present disclosure, the controller is further configured to sense a touch input via the sensing electrode and to change a number presented by the light guide pattern in response to the touch input moving from a first position to a second position on the touch area.
In one or more embodiments of the present disclosure, the circuit board includes a controller. The controller is configured to send out a signal for controlling each light emitting element in the light emitting element group to emit light or not so that the light guide pattern presents English letters. The english letter is one of a to Z.
In one or more embodiments of the present disclosure, the controller is further configured to sense a touch input via the sensing electrode, and is configured to change the english letter presented by the light guide pattern in response to the touch input moving from the first position to the second position on the touch area.
In one or more embodiments of the present disclosure, the sensing electrode matrix is distributed in the touch area, such that the sensing electrodes respectively correspond to independent coordinates.
In one or more embodiments of the present disclosure, the sensing electrode and the light emitting element are disposed in the touch area.
In one or more embodiments of the present disclosure, the circuit board has a plurality of through holes. The induction electrode is electrically connected with the controller on the non-touch control surface through the through hole.
In one or more embodiments of the present disclosure, the controller is further configured to sense a touch input via the sensing electrode and configured to change a brightness of light emitted by at least one of the light emitting elements in response to the touch input moving from a first position to a second position on the touch area.
In summary, in the light-emitting touch panel of the present disclosure, a corresponding through hole is disposed at one side of each light guiding unit of the light guiding plate, and a corresponding light-emitting element is disposed in each through hole. Therefore, the light emitted by each light-emitting element can enter the light guide plate through the inner wall of the corresponding through hole and then be guided to upwards penetrate the substrate through the corresponding light guide unit to be emitted. In this configuration, the light guiding patterns formed by the light guiding units can be made to present variable patterns (e.g. different numbers or english letters) by controlling the light emitting elements to emit light or not, respectively. In addition, the luminous touch control panel can also utilize the induction electrode arranged on the circuit board to sense the touch control input of a user, and change the pattern or brightness presented by the light guide pattern according to the moving path of the touch control input.
The above description is merely illustrative of the problems to be solved by the present disclosure, the technical means for solving the problems, the effects thereof and the like, and the specific details of the present disclosure are set forth in the following description and related drawings.
Drawings
The foregoing and other objects, features, advantages and embodiments of the present disclosure will be apparent from the following description of the drawings in which:
FIG. 1 is a perspective view of an electronic device according to an embodiment of the disclosure;
FIG. 2 is a partial top view of a portion of a light-emitting touch panel according to an embodiment of the disclosure;
FIG. 3 is a partial cross-sectional view of the light-emitting touch panel of FIG. 1 along the line 3-3 of FIG. 2;
FIG. 4 is a partial cross-sectional view of a light-emitting touch panel according to another embodiment of the disclosure;
FIG. 5 is a partial cross-sectional view of a light-emitting touch panel according to another embodiment of the disclosure;
FIG. 6 is a partial cross-sectional view of a light-emitting touch panel according to another embodiment of the disclosure;
FIG. 7 is a partial cross-sectional view of a light-emitting touch panel according to another embodiment of the disclosure;
FIG. 8 is a schematic diagram illustrating a light emitting device group and a light guiding pattern according to another embodiment of the disclosure;
FIG. 9 is a schematic diagram illustrating a light emitting device group and a light guiding pattern according to another embodiment of the disclosure;
fig. 10 is a partial top view illustrating a portion of the elements of the light-emitting touch panel of fig. 2.
[ symbolic description ]
100 electronic device
110 host computer
120 display device
200,300 luminous touch control panel
210 substrate
220,320 light guide plate
220a through hole
221,321 light guiding unit
221a light guiding unit group
222 light blocking structure
230 circuit board
230a through hole
231 touch surface
231a touch area
231b sensing electrode
232 non-touch surface
240 luminous element
241 light-emitting element group
250 light shielding layer
251 light transmission region
252 non-light-transmitting region
260 controller
270 reflecting sheet
320a containing groove
322 retaining wall
3-3 line segment
Detailed Description
Various embodiments of the present disclosure are disclosed in the following figures, in which numerous practical details are set forth in the following description for purposes of clarity. However, it should be understood that these practical details are not to be used to limit the present disclosure. That is, in some embodiments of the present disclosure, these practical details are not necessary. Furthermore, for the sake of simplicity of the drawing, some conventional structures and elements are shown in the accompanying drawings in a simplified schematic manner.
Referring to fig. 1, a perspective view of an electronic device 100 according to an embodiment of the disclosure is shown. As shown in fig. 1, in the present embodiment, the electronic device 100 includes a host 110, a display 120, and a light-emitting touch pad 200. The light-emitting touch pad 200 is an input device disposed on the host 110, but the disclosure is not limited thereto. In practical applications, the light-emitting touch pad 200 may also be an electronic product (e.g., a personal digital assistant, a keyboard … including a touch pad, etc.) using the touch pad as an input or operation interface. In other words, the concept of the light-emitting touch panel 200 of the present disclosure can be applied to an electronic product using a Ren Heyi touch panel as an input or operation interface. The structure, function, and connection and actuation relationships of some of the elements included in the light-emitting touch panel 200 will be described in detail below.
Please refer to fig. 2 and fig. 3. Fig. 2 is a partial top view illustrating a portion of the components of a light-emitting touch pad 200 according to an embodiment of the disclosure. Fig. 3 is a partial cross-sectional view of the light-emitting touch panel 200 of fig. 1 along the line 3-3 of fig. 2. As shown in fig. 2 and 3, in the present embodiment, the light-emitting touch panel 200 includes a substrate 210, a light guide plate 220, a circuit board 230, a plurality of light-emitting elements 240, and a reflective sheet 270. The light guide plate 220 is disposed under the substrate 210 and includes a plurality of light guide units 221 and a plurality of through holes 220a. Each light guide unit 221 is composed of a plurality of light guide microstructures, as shown in fig. 3. Each light guide unit 221 is substantially in a bar shape or a line shape, as shown in fig. 2. The through holes 220a are respectively provided at one side of the light guide unit 221. That is, one side of each light guiding unit 221 is provided with a corresponding through hole 220a. The circuit board 230 is disposed under the light guide plate 220. The light emitting elements 240 are disposed on the circuit board 230 and are respectively accommodated in the through holes 220a. That is, each through hole 220a is provided therein with a corresponding light emitting element 240. The reflective sheet 270 is disposed between the circuit board 230 and the light guide plate 220. The reflective sheet 270 is configured to reflect light exiting from the bottom surface of the light guide plate 220 back into the light guide plate 220. The light emitted from the light emitting element 240 enters the light guide plate 220 through the inner wall of the through hole 220a, and then is guided upward through the substrate 210 by the light guide unit 221 to be emitted.
As shown in fig. 3, in the present embodiment, the light-emitting touch pad 200 further includes an opaque light shielding layer 250. The light shielding layer 250 is disposed between the substrate 210 and the light guide plate 220. The light shielding layer 250 has a plurality of light transmitting regions 251 and a light non-transmitting region 252. The light transmitting regions 251 are disposed corresponding to the light guiding units 221, respectively. The non-transparent region 252 is disposed corresponding to the light emitting element 240. Therefore, the light emitted by the light emitting element 240 is prevented from directly penetrating the substrate 210 upwards and emitting, and the light emitted by the light emitting element 240 is ensured to be guided by the light guiding unit 221 to penetrate the substrate 210 upwards and emit after reaching the light guiding unit 221.
Fig. 4 is a partial cross-sectional view illustrating a light-emitting touch panel 200 according to another embodiment of the disclosure. As shown in fig. 4, in the present embodiment, the area of the light-transmitting region 251 of the light-shielding layer 250 is smaller than the area of the light-guiding unit 221, and the orthographic projection of the light-transmitting region 251 on the light-guiding unit 221 is located within the edge of the light-guiding unit 221. Therefore, the visual pattern finally exhibited by the light emitted by the light emitting element 240 is defined by the outline of the light-transmitting region 251, and the visual pattern has sharp edges.
Fig. 5 is a partial cross-sectional view of a light-emitting touch panel 200 according to another embodiment of the disclosure. As shown in fig. 5, in the present embodiment, the area of the light-transmitting region 251 of the light-shielding layer 250 is equal to the area of the light-guiding unit 221, and the orthographic projection of the edge of the light-transmitting region 251 on the light-guiding unit 221 is aligned with the edge of the light-guiding unit 221. The last visible pattern of the light emitted by the light emitting element 240 is defined by the outline of the light-transmitting region 251, and has sharp edges.
Fig. 6 is a partial cross-sectional view of a light-emitting touch panel 200 according to another embodiment of the disclosure. As shown in fig. 6, in the present embodiment, the area of the light-transmitting region 251 of the light-shielding layer 250 is larger than the area of the light-guiding unit 221, and the front projection of the light-transmitting region 251 on the light-guiding unit 221 completely covers the edge of the light-guiding unit 221. Therefore, the visual pattern finally exhibited by the light emitted by the light emitting element 240 is defined by the outline of the light guiding unit 221, and the visual pattern has a vignetting effect. Thereby, two adjacent visual patterns can realize the visual effect of seamless connection.
In some embodiments, the material of the light shielding layer 250 includes plastic, but the disclosure is not limited thereto. In other embodiments, the light shielding layer 250 is an opaque coating, but the disclosure is not limited thereto.
In some embodiments, the material of the substrate 210 may include glass or polyester film (Mylar), but the disclosure is not limited thereto.
As shown in fig. 3, in the present embodiment, a light blocking structure 222 is further disposed between any two adjacent through holes 220a in the light guide plate 220. Therefore, the light emitted by the light emitting elements 240 in each through hole 220a can only reach the corresponding light guiding unit 221, so as to effectively avoid the light interference between different light emitting elements 240.
In some embodiments, as shown in fig. 3, the light blocking structure 222 is a laser engraving structure. Specifically, laser light with a certain wavelength is injected into the light guide plate 220 to generate fine bursts at specific locations therein to form bubbles, which is the laser engraving structure. The laser engraving structure can block the light emitted by the light emitting element 240 from being transmitted in the light guide plate 220.
Fig. 7 is a partial cross-sectional view of a light-emitting touch panel 300 according to another embodiment of the disclosure. In this embodiment, a modified light guide plate 320 is provided, and a light-tight retaining wall 322 is further provided. Other elements of this embodiment are the same as those of the embodiment shown in fig. 3, and thus are not described here.
Specifically, in the present embodiment, the light-impermeable wall 322 is disposed between any two adjacent light-emitting elements 240. The light guide plate 320 further includes a receiving groove 320a. The retaining wall 322 is accommodated in the accommodating groove 320a. Therefore, the light emitted by each light emitting element 240 can reach the corresponding light guiding unit 321, so as to effectively avoid the light interference between different light emitting elements 240. In other words, the light blocking structure 222 in the light guide plate 220 shown in fig. 3 is replaced by the retaining wall 322 in the accommodating groove 320a.
As shown in fig. 2, in the present embodiment, any two adjacent light guide units 221 are separated from each other. The light guide units 221 within the dashed frame form a light guide pattern having a substantially rectangular upper portion (i.e., four light guide units 221) and a U-shaped lower portion (i.e., three light guide units 221). In fig. 2, three other similar light guide patterns are shown. The number of light guide units 221 included in the light guide pattern is seven (i.e., seven display blocks). Seven light emitting elements 240 within the dashed box constitute a light emitting element group 241. The light emitting elements 240 in the light emitting element group 241 correspond to the light guide units 221 in the light guide pattern, respectively.
The light guide pattern can be made to take on a number by controlling each light emitting element 240 of the light emitting element group 241 in fig. 2 to emit light or not. The numbers comprise 0 to 9.
Please refer to fig. 8 and 9. Fig. 8 is a schematic diagram illustrating a light emitting device 241 and a light guiding pattern according to another embodiment of the disclosure. Fig. 9 is a schematic diagram illustrating a light emitting device 241 and a light guiding pattern according to another embodiment of the disclosure. In the embodiment shown in fig. 8, the number of light guiding units 221 included in the light guiding pattern within the dashed box is nine (i.e., nine display blocks). In the embodiment shown in fig. 9, the number of light guiding units 221 included in the light guiding pattern within the dashed box is sixteen (i.e., sixteen display blocks). The light emitting elements 240 in the light emitting element group 241 correspond to the light guide units 221 in the light guide pattern, respectively.
By controlling the light emitting elements 240 in the light emitting element group 241 in fig. 8 and 9 to emit light or not, english letters can be presented in addition to the figures for rendering the light guide pattern. The english alphabet includes at least one of a to Z.
Fig. 10 is a partial top view illustrating a portion of the elements of the light-emitting touch panel 200 in fig. 2. As shown in fig. 2, 3 and 10, in the present embodiment, the circuit board 230 has a touch surface 231 and a non-touch surface 232. The touch surface 231 has a touch area 231a. The touch area 231a is provided with a plurality of sensing electrodes 231b. The sensing electrodes 231b are distributed in the touch area 231a in matrix, so that the sensing electrodes 231b respectively correspond to independent coordinates. The light emitting element 240 is disposed in the touch area 231a. Each light emitting element 240 is disposed between the sensing electrodes 231b. A space is provided between each light emitting element 240 and each sensing electrode 231b. The controller 260 is disposed on the surface of the circuit board 230. The circuit board 230 has a plurality of through holes 230a. The sensing electrode 231b on the touch area 231a is electrically connected to the controller 260 on the non-touch surface 232 through the through hole 230a. The controller 260 is configured to receive the touch signal sensed by the sensing electrode 231b.
In some embodiments, the controller 260 is configured to send out a signal for controlling each light emitting element 240 in the light emitting element group 241 to emit light or not, so that the light guiding pattern presents numerals and/or english letters.
In some embodiments, the controller 260 is further configured to sense a touch input via the sensing electrode 231b and is configured to change the number presented by the light guide pattern in response to the touch input moving from the first position to the second position on the touch area 231a. For example, the first position and the second position are the lower left corner and the upper left corner of the touch area 231a, respectively. When the touch input is moved from the first position to the second position, the controller 260 sends out a signal that can sequentially change the number presented by the light guide pattern from 1 to 9; when the touch input is moved from the second position to the first position, the controller 260 sends a signal that causes the number presented by the light guide pattern to be sequentially changed from 9 to 1.
In some embodiments, the controller 260 is further configured to sense a touch input via the sensing electrode 231b, and is configured to change the english letters presented by the light guide pattern in response to the touch input moving from the first position to the second position on the touch area 231a. For example, the first position and the second position are the lower left corner and the lower right corner of the touch area 231a, respectively. When the touch input is moved from the first position to the second position, the controller 260 sends out a signal that can change the English letters presented by the light guide pattern from A to Z in sequence; when the touch input is moved from the second position to the first position, the controller 260 sends out a signal that causes the number presented by the light guide pattern to be sequentially changed from Z to A.
In some embodiments, the controller 260 is further configured to sense a touch input via the sensing electrode 231b, and is configured to change the brightness of the light emitted by the at least one light emitting element 240 in response to the touch input moving from the first position to the second position on the touch area 231a. For example, the first position and the second position are the upper left corner and the upper right corner of the touch area 231a, respectively. When the touch input is moved from the first position to the second position, the controller 260 sends out a signal that can make the brightness of each light emitting element 240 in the light emitting element group 241 gradually become larger; when the touch input is moved from the second position to the first position, the controller 260 sends out a signal for gradually reducing the brightness of each light emitting element 240 in the light emitting element group 241.
In some embodiments, as shown in fig. 2, 8 and 9, the light guiding units 221 in each dashed frame form a light guiding unit group 221a, and each light guiding unit group 221a may present a complete light guiding pattern (i.e. numerals or english letters). When the sensing electrode 231b adjacent to any light guiding unit 221 of the light guiding unit group 221a senses a touch signal, the controller 260 regards the touch signal as a clicking signal for the light guiding unit group 221 a. The controller 260 is further configured to generate the aforementioned signal in response to the subsequent touch input after receiving the click signal. Thus, the user can change the light guiding patterns of the different light guiding unit groups 221a respectively.
In some embodiments, when the controller 260 continuously receives the plurality of click signals to the light guiding unit 221a within a predetermined time period, the control type of the signals generated in response to the touch input can be sequentially switched. For example, when the controller 260 receives only one point selection signal to the light guiding unit group 221a in the predetermined time period, a signal for rendering the light guiding pattern digital may be generated in response to the subsequent touch input; when the controller 260 continuously receives the two click signals of the light guide unit group 221a in the predetermined time period, a signal for making the light guide pattern present english letters may be generated in response to the subsequent touch input; when the controller 260 continuously receives three click signals for the light guide unit group 221a within the predetermined time period, a signal for changing the brightness of each light emitting element 240 in the light emitting element group 241 may be generated in response to a subsequent touch input.
In some embodiments, the predetermined time period is 1 second, but the disclosure is not limited thereto.
As is apparent from the above description of the embodiments of the present disclosure, in the light-emitting touch panel of the present disclosure, one side of each light-guiding unit of the light-guiding plate is provided with a corresponding through hole, and each through hole is provided with a corresponding light-emitting element. Therefore, the light emitted by each light-emitting element can enter the light guide plate through the inner wall of the corresponding through hole and then be guided to upwards penetrate the substrate through the corresponding light guide unit to be emitted. In this configuration, the light guiding patterns formed by the light guiding units can be made to present variable patterns (e.g. different numbers or english letters) by controlling the light emitting elements to emit light or not, respectively. In addition, the luminous touch control panel can also utilize the induction electrode arranged on the circuit board to sense the touch control input of a user, and change the pattern or brightness presented by the light guide pattern according to the moving path of the touch control input.
While the present disclosure has been described with reference to the exemplary embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure, and it is therefore intended that the scope of the disclosure be limited only by the appended claims.
Claims (19)
1. A light-emitting touch panel, comprising:
a substrate;
the light guide plate is arranged below the substrate and comprises a plurality of light guide units and a plurality of through holes, wherein each light guide unit consists of a plurality of light guide microstructures and is in a strip shape or a linear shape, and the through holes are respectively arranged at one side of the light guide units;
the circuit board is arranged below the light guide plate and is provided with a touch surface and a non-touch surface, the touch surface is provided with a touch area, and a plurality of sensing electrodes are arranged on the touch area; and
the light-emitting elements are arranged on the circuit board and are respectively accommodated in the through holes;
the light emitted by the light emitting elements enters the light guide plate through the inner walls of the through holes and then is guided to upwards penetrate the substrate through the light guide units to be emitted.
2. The light-emitting touch panel according to claim 1, wherein each of the light-emitting elements is disposed between the plurality of sensing electrodes, and a space is provided between each of the light-emitting elements and each of the sensing electrodes.
3. The light-emitting touch panel according to claim 1, further comprising a light-shielding layer, wherein the light-shielding layer is disposed between the substrate and the light-guiding plate, and the light-shielding layer has a plurality of light-transmitting areas, and the plurality of light-transmitting areas are disposed corresponding to the plurality of light-guiding units respectively.
4. The light-emitting touch panel according to claim 3, wherein the light-shielding layer has at least one non-transparent region, and the at least one non-transparent region is disposed corresponding to the plurality of light-emitting elements.
5. The light-emitting touch panel according to claim 1, wherein a light-tight wall is disposed between any two adjacent light-emitting elements.
6. The light-emitting touch panel of claim 5, wherein the light guide plate further comprises a receiving groove, and the retaining wall is received in the receiving groove.
7. The luminous touch pad of claim 1, wherein a light blocking structure is further disposed between any two adjacent ones of the plurality of through holes in the light guide plate.
8. The illuminated touch panel as recited in claim 7 wherein the light blocking structure is a laser engraving structure.
9. The illuminated touch pad of claim 1, wherein any two adjacent ones of the plurality of light guide units are separated from each other.
10. The luminous touch pad as defined in claim 9, wherein the plurality of light guiding units form a light guiding pattern with a rectangular upper part and a U-shaped lower part, and the number of the plurality of light guiding units included in the light guiding pattern is at least seven.
11. The light-emitting touch panel according to claim 10, wherein at least seven of the plurality of light-emitting elements form a light-emitting element group, and the plurality of light-emitting elements in the light-emitting element group respectively correspond to the plurality of light-guiding units in the light-guiding pattern.
12. The illuminated touch pad of claim 11, wherein the circuit board comprises a controller configured to send a signal to control each of the light emitting elements of the set of light emitting elements to emit light or not so that the light guide pattern presents a number, the number being one of 0 to 9.
13. The illuminated touch pad of claim 12, wherein the controller is further configured to sense a touch input via the plurality of sense electrodes and is configured to change the number presented by the light guide pattern in response to the touch input moving from a first position to a second position on the touch area.
14. The luminous touch pad of claim 11, wherein the circuit board comprises a controller configured to send a signal to control each of the light emitting elements of the light emitting element group to emit light or not so that the light guide pattern presents an english letter, the english letter being one of a to Z.
15. The illuminated touch pad of claim 14, wherein the controller is further configured to sense a touch input via the plurality of sensing electrodes and is configured to change the english letter presented by the light guide pattern in response to the touch input moving from a first position to a second position on the touch area.
16. The illuminated touch pad of claim 1, wherein the plurality of sensing electrode matrices are distributed in the touch area such that the plurality of sensing electrodes correspond to independent coordinates, respectively.
17. The light-emitting touch panel according to claim 1, wherein the plurality of sensing electrodes and the plurality of light-emitting elements are disposed in the touch area.
18. The luminous touch pad of claim 1, wherein the circuit board has a plurality of through holes, and the plurality of sensing electrodes are electrically connected with a controller on the non-touch surface through the plurality of through holes.
19. The illuminated touch pad of claim 18, wherein the controller is further configured to sense a touch input via the plurality of sense electrodes and is configured to change the brightness of the light emitted by at least one of the plurality of light emitting elements in response to the touch input moving from a first position to a second position on the touch area.
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| US202263390749P | 2022-07-20 | 2022-07-20 | |
| US63/390,749 | 2022-07-20 | ||
| TW111137890 | 2022-10-05 |
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| CN117435079A true CN117435079A (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211630575.2A Pending CN117435079A (en) | 2022-07-20 | 2022-12-19 | Luminous touch control panel |
| CN202310090659.XA Pending CN117435067A (en) | 2022-07-20 | 2023-02-09 | Luminous touch control panel |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310090659.XA Pending CN117435067A (en) | 2022-07-20 | 2023-02-09 | Luminous touch control panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN117435079A (en) |
| TW (2) | TWI830422B (en) |
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|---|---|---|---|---|
| TWI788280B (en) * | 2016-02-26 | 2023-01-01 | 晶元光電股份有限公司 | Light-emitting device |
| TWI606208B (en) * | 2016-11-18 | 2017-11-21 | 錼創科技股份有限公司 | Light source module |
| CN206460433U (en) * | 2017-01-05 | 2017-09-01 | 深圳市好捷华科技有限公司 | A kind of touch pad backlight display device |
| TWI725691B (en) * | 2019-12-30 | 2021-04-21 | 錼創顯示科技股份有限公司 | Micro light emitting device display apparatus |
| TWI666478B (en) * | 2018-12-26 | 2019-07-21 | 云光科技股份有限公司 | A direct type backlight device |
| CN111722734B (en) * | 2019-03-20 | 2024-01-02 | 群光电能科技股份有限公司 | Luminous touch panel device |
| TWI750764B (en) * | 2019-08-29 | 2021-12-21 | 群光電能科技股份有限公司 | Multilayer opto-electronic module |
| CN213934848U (en) * | 2021-01-19 | 2021-08-10 | 江西合力泰科技有限公司 | Novel touch pad |
| TWI753769B (en) * | 2021-02-03 | 2022-01-21 | 致伸科技股份有限公司 | Touch pad with key input function |
| TWI763407B (en) * | 2021-03-30 | 2022-05-01 | 達運精密工業股份有限公司 | Touch indicating cover and electronic device using the same |
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- 2022-12-19 CN CN202211630575.2A patent/CN117435079A/en active Pending
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- 2023-02-09 CN CN202310090659.XA patent/CN117435067A/en active Pending
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|---|---|
| CN117435067A (en) | 2024-01-23 |
| TW202405631A (en) | 2024-02-01 |
| TWI830422B (en) | 2024-01-21 |
| TWI846292B (en) | 2024-06-21 |
| TW202405632A (en) | 2024-02-01 |
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