WO2021093621A1 - 一种导光板光开关及导光板阵列光开关模块 - Google Patents

一种导光板光开关及导光板阵列光开关模块 Download PDF

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Publication number
WO2021093621A1
WO2021093621A1 PCT/CN2020/125677 CN2020125677W WO2021093621A1 WO 2021093621 A1 WO2021093621 A1 WO 2021093621A1 CN 2020125677 W CN2020125677 W CN 2020125677W WO 2021093621 A1 WO2021093621 A1 WO 2021093621A1
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WO
WIPO (PCT)
Prior art keywords
optical
cpu
light
guide plate
switch
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Application number
PCT/CN2020/125677
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English (en)
French (fr)
Inventor
陈�峰
Original Assignee
陈�峰
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Filing date
Publication date
Application filed by 陈�峰 filed Critical 陈�峰
Priority to EP20888134.2A priority Critical patent/EP4060897A4/en
Priority to CN202080078643.1A priority patent/CN115552797A/zh
Publication of WO2021093621A1 publication Critical patent/WO2021093621A1/zh

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/20—Dynamic coding, i.e. by key scanning
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/26—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys using opto-electronic means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/965—Switches controlled by moving an element forming part of the switch
    • H03K2217/9653—Switches controlled by moving an element forming part of the switch with illumination
    • H03K2217/9655—Switches controlled by moving an element forming part of the switch with illumination using a single or more light guides

Definitions

  • the present invention relates to a thin film array optical switch and a key switch using the thin film array optical switch, in particular to a thin film array optical switch loaded in a keyboard as an input device of an electronic instrument.
  • the existing contact type membrane array switch circuit has the following problems:
  • the ultra-thin contact film array switch circuit used in the existing keyboard is composed of two circuit films printed with silver paste circuits and silver paste contacts, and one isolation film.
  • the two circuit films have silver paste circuits and silver paste.
  • the contacts are screen printed with silver paste on the film to form very thin silver paste circuits and silver paste contacts.
  • the isolation film is located between the two circuit films and is bonded to the two circuit films. Together, the two circuit films are composed of an upper circuit film and a lower circuit film.
  • the silver paste contacts of the upper circuit film, the silver paste contacts of the lower circuit film, and the through holes on the isolation film correspond to each other; when used, under the action of external force, The silver paste contacts of the upper circuit film and the silver paste contacts of the lower circuit film are in contact in the through holes on the isolation film, the switch is turned on, and the silver paste contacts of the upper circuit film are reset after the external force is removed, and the switch is disconnected; existing The silver paste contacts of the contact type membrane array switch circuit are easy to oxidize, easy to wear, and have a short service life.
  • the existing 101-key keyboard has six rows, with a maximum of 20 keys in one row and a minimum of 16 keys in a row. If key conflicts are not considered, the total CPU I/O port needs: output interface O (output interface) is 20 There are 6 input interfaces I (input interface). In order to solve some key conflicts, the CPU I/O ports use a total of 30 (key conflicts: if several keys are pressed at the same time, the CPU cannot recognize that they are pressed at the same time The coordinates of the next few keys)
  • the existing keyboard has more keys, such as a 50-key keypad, an 83-key keyboard, a 101-key keyboard, and a 120-key keyboard.
  • the power of 101 LEDs (each LED power is 0.06W) is 6.06W.
  • the laptop keyboard with backlight uses about 12 LEDs and the power is about 1W.
  • Existing laptops The power is generally 55W-60W, and there is a general problem of heat causing its performance to decline. If the power of only the photoelectric keyboard is increased by about 10%, it is difficult to promote;
  • the switch circuits of the membrane array switch circuits of the existing keyboards all adopt matrix circuit technology.
  • the I/O ports of the CPU are added to solve this problem.
  • the commonly used key combination Ctrl+A, the Ctrl key The switch and the switch of the A key are respectively connected to the two input interfaces of the CPU;
  • the keys of the keyboard using the light guide plate emit unevenly, and it is difficult to adjust the brightness of the proximal keycap from the light source part 10-1 and the brightness of the remote keycap from the light source part 10-1;
  • the membrane array switch circuit is installed on the metal support plate 2.
  • the membrane array switch circuit has as many openings as the metal support plate 2, and the membrane array switch circuit has a complicated waterproof process and poor reliability.
  • the purpose of the present invention is to provide an array optical switch on a non-contact light guide plate with a simple manufacturing process and low production cost, in particular to provide a light guide thin film optical switch array with long service life and ultra-thin thickness; at the same time, After the light-guiding thin-film optical switch array is sealed, the light-guiding thin-film optical switch array can be washed with water, and its service life can also be greatly improved.
  • a light guide plate optical switch and a light guide plate array optical switch module of the present invention includes an optical transmitter, an optical connector, a circuit chip, an optical switch, a CPU, a light guide plate, and the optical signal emitted by the optical transmitter is connected to the light through the optical switch
  • the optical switch When the optical switch is triggered, the transmission optical path of the optical transmitter and the optical connector is turned on and off.
  • the CPU has an on-off interface and a detection interface;
  • the light guide plate is divided into multiple light zones, and the optical signals in the multiple light zones are isolated from each other;
  • each optical zone multiple optical transmitters are respectively connected to the optical path of a group of optical connectors or connected to the optical path of an optical connector;
  • the optical transmitter is connected to the on-off interface, and the optical connector is connected to the detection interface;
  • the CPU When in use, the CPU continuously detects the signals of multiple detection interfaces;
  • the CPU detects that the optical switch of a certain light zone is pressed through the detection interface.
  • optical transmitter Including optical transmitter, optical connector, circuit chip, optical switch, light guide plate, the optical signal emitted by the optical transmitter is conducted through the optical switch and the optical path of the optical connector, when the optical switch is triggered, the optical transmitter and the optical connector
  • the propagation light path of the light guide plate is turned on and off; the light guide plate is divided into multiple light areas, and the optical signals in the multiple light areas are isolated from each other; in each light area, multiple light transmitters are connected to the light path guide of a group of optical connectors.
  • the optical transmitter is connected to the CPU output port, and the optical connector is connected to the CPU input port; when in use, the CPU detects the signals of multiple CPU input ports; When the optical switch is pressed, the CPU detects the CPU input port to determine that a certain optical switch in a certain light zone is pressed.
  • the light guide plate is composed of the switch light guide plate 7; the optical transmitter is connected to the CPU output port by: an optical transmitter in one optical zone is connected with an optical transmitter in the other optical zone to form an optical transmitter Connecting groups, .... Repeat the above-mentioned connection process, thereby forming a plurality of optical transmitter connecting groups, and the plurality of optical transmitter connecting groups are respectively connected to a plurality of CPU output ports.
  • the optical signal emitted by the optical transmitter is conducted through the optical switch and the optical path of the optical connector; when the optical switch is triggered, the optical transmitter is connected to the light
  • the light path of the device is turned on and off; the switch light guide plate 7 is divided into at least two light areas, the two light areas are the first light area 7a, the second light area 7b, and the light signal in the first light area 7a is connected to the second light area.
  • the optical signals in the second optical zone 7b are isolated; the light emitting windows of the multiple optical transmitters in the first optical zone 7a are connected to the optical paths of the multiple optical switches and the first optical connector, and the second optical zone 7b
  • the light emission windows of the plurality of light transmitters are conducted with the light paths of the plurality of light switches and the second optical connector; connect a light transmitter of the first light zone 7a with a light transmitter of the second light zone 7b, A connected optical transmitter group is formed, and the first connected optical transmitter group, the second connected optical transmitter group, the third connected optical transmitter group, and the nth connected optical transmitter group are respectively output to the first CPU ,
  • the nth CPU output port are correspondingly connected; connect the first optical connector and the second optical connector to the first CPU input port of the CPU, respectively
  • the second CPU input port is connected; when in use, the CPU continuously detects the signal of the first CPU input port and the signal of the second CPU input port; when the optical switch of the first light zone 7a is pressed, the CPU detects the first CPU
  • the input port finds the change of the light signal of the first light zone 7a, and the CPU judges that a certain light switch of the first light zone 7a is pressed according to the change of the light signal; when the light switch of the second light zone 7b is pressed, the CPU By detecting the second CPU input port and discovering the change of the optical signal of the second optical zone 7b, the CPU judges that a certain optical switch of the second optical zone 7b is pressed according to the change of the optical signal.
  • the light guide plate array optical switch module also includes a CPU, where the CPU has a CPU output interface and a CPU input interface; the CPU output port and the CPU input port on the circuit chip are respectively connected to the CPU output interface and CPU input on the other circuit chip The corresponding connection of the interface or the CPU output port and the CPU input port are respectively connected to the CPU output interface and the CPU input interface, and the CPU input port, the CPU output interface, and the CPU input interface are located on the same circuit chip.
  • the CPU continuously cyclically scans and detects each CPU input port or continuously detects each CPU input port at the same time.
  • the CPU detects a signal change of a certain output port, the CPU connects and connects the optical transmitters connected to the CPU output port.
  • the optical zone where the optical transmitters connected to the optical transmitters are located determines that a certain optical switch is triggered.
  • the CPU when the array optical switch module is working, the CPU is connected to a CPU output port, and the optical transmitter connected to the CPU output port has at most one optical transmitter emitting light signal in each optical zone, and one optical transmitter in each optical zone A group of optical connectors receives an optical signal or an optical connector receives an optical signal, and each CPU input port connected to the optical transmitter has a signal input.
  • the CPU judges whether the optical switch of each optical partition is triggered, and the CPU turns off the CPU output port; the CPU is connected to another CPU output port.
  • the optical transmitter connected to the CPU output port has at most one optical transmitter emitting light signal in each optical zone, and a group of optical connectors in each optical zone receives When an optical signal is received or an optical connector receives an optical signal, each CPU input port connected to the optical transmitter has a signal input, and the CPU judges whether the optical switch of each optical partition is triggered, and the CPU closes the CPU output port; ; ;
  • the optical path of the optical zone is blocked, so that the optical connector of the optical zone cannot receive the optical signal, and the CPU input port connected to the optical connector has no signal input, and the CPU is connected according to the
  • the optical transmitter connection group and the corresponding relationship between the optical zone and the optical connector determine the position of the optical switch.
  • each CPU output port of the CPU emits different characteristic signals
  • the optical transmitters connected in the optical transmitter group emit different characteristic signals in the same light zone.
  • optical transmitter Including optical transmitter, optical connector, circuit chip, optical switch, light guide plate, the optical signal emitted by the optical transmitter is conducted through the optical switch and the optical path of the optical connector; when the optical switch is triggered, the optical transmitter and the optical connector The light path is turned on and off; the light guide plate is divided into multiple optical zones, and the optical signals propagating in each optical zone are isolated from each other; multiple optical transmitters and a group of optical connectors or an optical connector in each optical zone The optical path is turned on, and the optical connectors in each optical zone are respectively connected to the signal input interface of the CPU;
  • connection process forms multiple optical transmitter connection groups;
  • the CPU has a CPU characteristic output interface that outputs multiple different characteristic signals, and each CPU characteristic output interface is connected to multiple groups of optical transmitter connection groups, which are connected by multiple groups of optical transmitters.
  • the group connection constitutes an optical transmitter feature group, and the optical transmitters of each group of optical transmitter connection groups that constitute the optical transmitter feature group emit different characteristic signals; multiple optical transmitter feature groups are respectively connected with multiple optical CPUs of the CPU Input interface connection, the on and off of each optical transmitter feature group is controlled by an optical CPU input interface of the CPU; when in use, the CPU continuously detects the signal of each signal input interface.
  • optical transmitter, optical connector, circuit chip, optical switch, light guide plate, the optical signal emitted by the optical transmitter is conducted through the optical switch and the optical path of the optical connector; when the optical switch is triggered, the optical transmitter and the optical connector
  • the light path is turned on and off; the light guide plate is divided into n light areas, and the n light areas are the first light area 7a, the second light area 7b, the third light area 7c, and the nth light area.
  • the optical signals in each optical zone are isolated from each other; the multiple optical transmitters in the first optical zone 7a are connected to the optical path of the first optical connector G1, and the multiple optical transmitters in the second optical zone 7b are connected.
  • the optical path of the second optical connector G2 is connected, and the multiple optical transmitters in the third optical zone 7c are connected to the optical path of the third optical connector G3.
  • Connect the optical path of the first optical zone 7a An optical transmitter, an optical transmitter in the second optical zone 7b, and an optical transmitter in the third optical zone 7c... are electrically connected to form an optical transmitter connection group, which is repeatedly connected to form The first optical transmitter connection group, the second optical transmitter connection group, the third optical transmitter connection group.
  • the CPU has a CPU characteristic output interface that outputs multiple different characteristic signals, and each CPU characteristic output The interface is connected to multiple groups of optical transmitter connection groups, which are connected to form an LED characteristic connection group.
  • the LED characteristic connection groups in the same light zone emit different characteristic signals; multiple LED characteristic connection groups It is connected to multiple CPU output interfaces of the CPU, and the on and off of each LED characteristic connection group is controlled by a CPU output interface of the CPU.
  • the CPU output interface is composed of I CPU output interface B1, II CPU output interface B2, III CPU output interface B3 .»Constituted by the first LED feature connection group connected to the CPU output interface B1 of the CPU, the CPU output interface B1 controls the on and off of the first LED feature connection group, and the second LED feature connection group Connected to the CPU output interface B2 of the CPU, the second LED characteristic connection group is controlled by the CPU output interface B2, the third LED characteristic connection group is connected to the IIICPU output interface B3 of the CPU, and the IIICPU output interface B3 controls the second LED characteristic connection group.
  • the CPU When in use, the CPU continuously detects the signal of the first signal input port C1, the signal of the second signal input port C2, the signal of the third signal input port C3...
  • the CPU has two CPU feature output interfaces that emit different feature signals: CPU feature output interface A1, CPU feature output interface A2, CPU feature output interface A1 is connected to multiple groups of optical transmitters, and CPU feature output interface A2 is connected Multiple groups of optical transmitters; two groups of optical transmitters respectively connected to the CPU feature output interface A1 and CPU feature output interface A2 are connected to form the first optical transmitter feature group, and the first optical transmitter feature group is connected with I
  • the CPU output interface B1 is connected
  • the second optical transmitter feature group is formed by the two groups of optical transmitters respectively connected to the CPU feature output interface A1 and the CPU feature output interface A2. The second optical transmitter feature group is then connected to the CPU output interface B2,
  • the third optical transmitter feature group is formed by the two sets of optical transmitters connected to the CPU feature output interface A1 and the CPU feature output interface A2 respectively.
  • the third optical transmitter feature group is connected to the IIICPU output interface B3.. .
  • Two groups of optical transmitters connected to the CPU feature output interface A1 and the CPU feature output interface A2 respectively form the nth optical transmitter feature group, and the nth optical transmitter feature group is then connected to the CPU output interface Bn;
  • the output interface Bn controls the first optical transmitter feature group, the second optical transmitter feature group, the third optical transmitter feature group... .... On-off of the nth optical transmitter feature group.
  • the light guide plate array optical switch module also includes a circuit chip, the circuit chip is provided with a CPU output port, a CPU input port, and a CPU feature output port.
  • the CPU output port, CPU input port, and CPU feature output port respectively correspond to the CPU output of the CPU.
  • the interface, the CPU output interface of the CPU, and the CPU feature output interface of the CPU are correspondingly connected; the CPU output port, CPU input port, and CPU feature output port on the circuit chip are respectively connected to the CPU output interface, CPU input interface, and CPU feature output on another circuit chip Interface corresponding connection or CPU output port, CPU input port respectively, CPU feature output port and CPU output interface, CPU input interface, CPU feature output interface corresponding connection, CPU output port, CPU input port respectively, CPU feature output port and CPU output interface , CPU input interface, CPU characteristic output interface are located on the same circuit chip.
  • the CPU has two CPU feature output interfaces that emit different feature signals: CPU feature output interface A1, CPU feature output interface A2, where A1 sends out 01 and A2 sends out 10, you should ensure that: A1 sends out 0, A2 sends out 1
  • the two signals are synchronized in time; when A1 sends 1, and A2 sends 0, they are synchronized in time, so as to ensure that only one group of optical transmitters are connected to emit light at each moment or the CPU has 3 emitting signals with different characteristics.
  • CPU feature output interface CPU feature output interface A1, CPU feature output interface A2, CPU feature output interface A3, where A1 sends out 001, A2 sends out 100, and A3 sends out 010, make sure: A1 sends out 0, A2 sends out 1, A3 When the three signals of 0 are sent out, they are synchronized in time; when A1 sends out 0, A2 sends out 0, and A3 sends out 1, they are synchronized in time; A1 sends out 1, A2 sends out 0, and A3 sends out 0. The three signals are synchronized in time. , So as to ensure that every moment there is only one set of light emitters connected in a group to emit light or the CPU has 4 CPU characteristic output interfaces that emit different characteristic signals: ........
  • the number of optical transmitters in each optical zone is equal, when the number of optical transmitters in each group of optical transmitters is the same or the number of optical transmitters in each optical zone is not equal, the number of optical transmitters in each group is not equal. The number of optical transmitters is not the same.
  • optical transmitters Including optical transmitters, optical connectors, circuit chips, light guide plates, and optical switches.
  • the optical signals emitted by the optical transmitters pass through the propagation optical path on the light guide plate, and the optical switches are conducted with the optical paths of the optical connectors.
  • the optical switch is triggered When the optical transmitter and the optical path of the optical connector are turned on and off; the light guide plate is composed of a switch light guide plate 7, and the switch light guide plate 7 is provided with a light guide plate through hole penetrating its surface, and the light guide plate through hole is an LED switch hole 7 -9.
  • the guide plate blocking hole 7-2, the left front light path hole 7-10 and the right front light path hole 7-11 are constituted.
  • the light transmitter is a side-emitting light transmitter, and the light transmitter is located in the LED switch hole 7-9 ,
  • the left front light path hole 7-10 and the right front light path hole 7-11 penetrate the surface of the switch light guide plate 7, and a front light path plate 7-12 is formed between the left front light path hole 7-10 and the right front light path hole 7-11;
  • One end of 7-12 is located on the side wall of the LED switch hole 7-9 and is connected to the light path of the light transmitter.
  • the other end of the front light circuit board 7-12 is located on the side wall of the guide plate blocking hole 7-2, the front light path Plates 7-12 are part of the propagation light path.
  • the upper and lower surfaces of the switch light guide plate 7 are covered with a reflective film, and one of the reflective films is provided with a right front reflective hole 6-5, a left front reflective hole 6-4, and a right front reflective hole 6 through the surface of the reflective film. 5.
  • the left front reflection hole 6-4 corresponds to the right front light path hole 7-11 and the left front light path hole 7-10 respectively; the reflection film is close to the front light path plate 7 at the right front reflection hole 6-5 and the left front reflection hole 6-4.
  • the sides of -12 respectively have the right front side film 6-8 and the left front side film 6-7 extending outward.
  • the right front side film 6-8 and the left front side film 6-7 constitute the reflective film of the reflective film.
  • the reflective film is bonded and connected with another reflective film; the left and right sections of the front optical circuit board 7-12 are respectively covered by the left front extension film 6-7 and the right front extension film 6-8, and the front optical circuit board 7
  • the left and right cross sections of -12 are formed by forming the right front reflection hole 6-5 and the left front reflection hole 6-4.
  • the switch light guide plate 7 is divided into multiple optical zones, and the optical signals in the multiple optical zones are isolated from each other; in each optical zone, multiple optical transmitters are connected to the optical path guides of a group of optical connectors. Connect or respectively conduct with the optical path of an optical connector.
  • the optical switch module also includes a reflective film that reflects light signals, the upper and lower surfaces of the switch light guide plate 7 are provided with reflective films that reflect light signals, and the reflective film is provided with a reflective film; the switch light guide plate 7 is provided with a penetrating reflection film.
  • the guide plate end section 7-14 is formed by punching and molding the guide plate end section 7-14, and the reflective film covers the guide plate end section 7-14 to form a light reflecting surface; the front light guide path 7-
  • the angle between 15 and the end section 7-14 of the guide plate is equal to the angle between the reflected light path 7-16 and the end section 7-14 of the guide plate, so that the optical signal emitted by the optical transmitter through the optical switch passes through the guide plate end along the front light guide path 7-15 Section 7-14, extended reflective film, the extended reflective film reflects the optical signal, and the reflected optical signal is connected to the optical connector along the reflective optical path 7-16.
  • the light guide plate is composed of a light-emitting light guide plate 13 and a switch light guide plate 7.
  • the light-emitting light guide plate 13 is located above the switch light guide plate 7, and the upper surface of the light-emitting light guide plate 13 is provided with light-emitting mesh points 13-1.
  • the light signal emitted by the transmitter is connected to the light path of the light-emitting and light-guiding mesh point 13-1.
  • the light-emitting light guide plate 13 is provided with a light-emitting plate hole 13-3 penetrating the surface of the light-emitting plate 13; the blocking space (9-1) on the light guide plate 7 is switched Align with the light-emitting plate hole 13-3 on the light-emitting light guide plate 13; the LED light-emitting hole 13-2 provided on the light-emitting light guide plate 13 is aligned with the LED switch hole 7-9 provided on the switch light guide plate 7, and the LED switch Both holes 7-9 and LED light-emitting holes 13-2 can accommodate the light transmitter.
  • the optical switch module further includes a photoresist drain, and the photoresist drain prevents the optical signal from leaking from the optical switch.
  • the invention provides a membrane optical switch with simple manufacturing process and low production cost, in particular to a long service life, ultra-thin membrane optical switch.
  • the membrane optical switch can be widely used in PC keyboards, thin membrane keyboards, and thin notebook keyboards. ; Thin membrane keyboards are widely used in medical equipment, industrial control equipment, household appliances such as washing machines, microwave ovens, etc.
  • Figure 1 is a perspective view of a 101-key notebook keyboard using the optical switch and optical module of the present invention
  • Figure 2 is a partial cross-sectional view of Figure 1 A;
  • Figure 3 is an exploded perspective view of Figure 2;
  • Figure 4 is an exploded perspective view of Figure 2;
  • Fig. 5 is a partial perspective view of the blocking switch sheet 9 of the present invention.
  • FIG. 6 is a perspective view of the FPC circuit chip 10 of the present invention.
  • FIG. 7 is a partial perspective view of the blocking switch sheet 9 of the present invention mounted on the FPC circuit sheet 10;
  • FIG. 8 is a perspective view of the middle blocking contact 9-7 of FIG. 7 being pressed
  • Figure 9 is a front view of Figure 2;
  • Figure 10 is a B-B cross-sectional view of Figure 9;
  • FIG. 11 is a perspective view of the keycap 1 of FIG. 10 being pressed
  • FIG. 12 is a perspective view of the array optical switch module 3 of the present invention installed under the metal support plate 2;
  • Fig. 13 is a perspective view of the middle blocking contact 9-7 of Fig. 12 being pressed;
  • Fig. 14 is a perspective view of the array optical switch module 3 of the present invention.
  • Fig. 15 is a perspective view of the middle blocking contact 9-7 of Fig. 14 being pressed;
  • FIG. 16 is an exploded view of an array optical switch module 3 of 101 optical switches according to the present invention.
  • FIG. 17 is a front view of the switch light guide plate 7 of 101 optical switches of the present invention.
  • FIG. 18 is a view of the upper surface of the switch light guide plate 7 of FIG. 17 covered with an upper reflective film 6;
  • FIG. 19 is a partial enlarged view of the blocking switch sheet 9 with 101 optical switches according to the present invention.
  • FIG. 21 is a circuit diagram of 50 optical switches to 65 optical switches of the present invention.
  • 22 is a circuit diagram of 50 to 65 optical switches and two characteristic signals of the present invention.
  • Figure 23 is a circuit diagram of the present invention with three characteristic signals from 50 to 65 optical switches;
  • FIG. 24 is a front view of an array optical switch module 3 of 101 optical switches according to the present invention.
  • Figure 25 is a D-D cross-sectional view of Figure 24;
  • Figure 26 is an E-E cross-sectional view of Figure 24;
  • FIG. 27 is a front view of the exhaust exhaust distribution on the blocking switch sheet 9 with 101 optical switches of the present invention.
  • FIG. 28 is a front view of the exhaust exhaust distribution on the switch light guide plate 7 with 101 optical switches according to the present invention.
  • FIG. 29 is a front view of the exhaust exhaust distribution on the optical switch module 3 of the 101 optical switch array of the present invention.
  • FIG. 30 is a partial enlarged view of F in FIG. 29;
  • Figure 31 is an enlarged perspective view of Figure 30;
  • 32 is a perspective view of a 101-key notebook keyboard using another optical switch and optical module of the present invention.
  • FIG. 33 is a partial cross-sectional view of A in FIG. 32;
  • Figure 34 is an exploded perspective view of Figure 33;
  • Figure 35 is another exploded perspective view of Figure 33;
  • FIG. 36 is a perspective view of the array optical switch module 3 used in FIG. 33;
  • Fig. 37 is an exploded perspective view of the switch light guide plate 7 and the upper and lower reflective films of Fig. 36;
  • FIG. 38 is a perspective view of the upper and lower reflective films of FIG. 37 attached to the switch light guide plate 7;
  • FIG. 39 is a perspective view of the blocking switch sheet 9 used in the array optical switch module 3 used in FIG. 33;
  • FIG. 40 is a perspective view of the positional relationship between the switch light guide plate 7 and the blocking switch sheet 9 on which the upper and lower reflective films are laminated in FIG. 38;
  • Figure 41 is another exploded perspective view of Figure 33;
  • Figure 42 is a front view of Figure 33;
  • Figure 43 is a cross-sectional view taken along line H-H of Figure 42;
  • FIG. 44 is a perspective view of the keycap 1 of FIG. 43 being pressed
  • FIG. 45 is a partially enlarged perspective view of the array optical switch module 3 used in FIG. 32;
  • FIG. 46 is an exploded perspective view of the array optical switch module 3 used in FIG. 32;
  • FIG. 47 is a front view of the switch light guide plate 7 of the array optical switch module 3 used in FIG. 32;
  • Fig. 48 is a front view of the switch light guide plate 7 covered with a reflective film of the array optical switch module 3 used in Fig. 32;
  • Figure 49 is a partial enlarged view of Figure 48;
  • Figure 50 is a partial enlarged view of Figure 47;
  • FIG. 51 is a schematic diagram of the switch light guide plate 7 of FIG. 50 covered with an upper reflective film.
  • a light guide plate optical switch and a light guide plate array optical switch module including an optical transmitter, an optical connector, a circuit chip, a light guide plate, and an optical switch, wherein the optical signal emitted by the optical transmitter passes through the guide The propagation light path on the optical plate, the optical switch and the optical path of the optical connector are turned on.
  • the optical switch When the optical switch is triggered, the optical path of the optical transmitter and the optical connector is on and off; the light guide plate is composed of the switch light guide plate 7, and the optical switch is blocked
  • the switch blocking body 9-1 on the switch sheet 9, the optical transmitter, the optical connector, the switch light guide plate 7, and the guide plate blocking hole 7-2 on the switch light guide plate 7 are composed of the light source unit 10 -1 structure, the light source part 10-1 is located in the guide plate blocking hole 7-2;
  • the switch blocking body 9-1 is composed of the switch blocking plate 9-2, the blocking connecting plate 9-4, and the blocking through hole 9-5 ,
  • the light guide plate array optical switch module is provided with a blocking switch piece 9, which is composed of a switch blocking body 9-1, and the switch blocking body 9-1 is composed of a switch blocking plate 9-2 and a blocking connecting plate 9-4.
  • a blocking switch piece 9 which is composed of a switch blocking body 9-1
  • the switch blocking body 9-1 is composed of a switch blocking plate 9-2 and a blocking connecting plate 9-4.
  • the upper end of -6 is connected with the middle block 9-8 upwards, and the elastic arch block 9-6 supports the block block 9-8; the lower block through hole 9-5 penetrates through the block block 9-6 to form a lower block through hole
  • the space of 9-5 or the lower through hole 9-5 penetrates through the arch stop elastic piece 9-6, and the plate surface of the blocking switch piece 9 forms a space for the
  • the optical switch consists of the switch blocking body 9-1 on the blocking switch sheet 9, the light emitting window of the optical transmitter, the light receiving window of the optical connector, the switch light guide plate 7, and the guide plate blocking hole 7 on the switch light guide plate 7.
  • -2 structure in which, when the optical connector is connected to the light path of the guide plate blocking hole 7-2 through the switch light guide plate 7, the light receiving window is located on the light receiving section 7-4 of the guide plate blocking hole 7-2 (this embodiment When the light transmitter is located in the blocking hole 7-2 of the guide plate, the light emission window is located at the light emitting end of the light transmitter (used in this embodiment), or the light transmitter can be switched through the light guide plate 7 and the guide plate to block the hole When the light path of 7-2 is turned on, the light emitting window is located on the light receiving section 7-4.
  • this embodiment uses a 101-key notebook keyboard (with the largest usage of the array switch module) to illustrate the light guide plate optical switch and the light guide plate array optical switch module of the present invention in detail.
  • Figure 1- Figure 3 is a partial cross-sectional view of Figure 1 A, the key device of a key position shown in the figure is composed of a key cap 1, a metal support plate 2, an array optical switch module 3, a reset body 4, and a pair of plastic
  • the support 5 is composed of a pair of plastic supports 5 respectively connected with the key cap 1 and the metal support plate 2 to ensure that the key cap 1 moves up and down in parallel, and the elastic reset body 4 is in contact with the key cap 1 and the metal support plate 2 respectively. Push the keycap 1 to the upper limit position (the highest position) under the action of elastic force.
  • the key device of one key position of the existing notebook keyboard (not shown in the figure) is composed of a key cap 1, a metal support plate 2, a reset body 4, a pair of plastic supports 5, and an array switch module (consisting of three layers of films)
  • the upper and lower two films are printed with silver paste circuits and the middle is an isolation layer).
  • the array switch module is located above and connected to the metal support plate 2, and the light guide plate module that makes the characters of the key cap 1 emit light is located on the metal support plate. 2 below and connected to it, the reset body 4 is in contact with the keycap 1 and the light guide plate module respectively.
  • the array optical switch module 3 of the present invention is located under the metal support plate 2 of the notebook keyboard (the array optical switch module 3 can also make the characters of the keycap 1 emit light), and the array optical switch module 3 is reflected from the top Diaphragm 6, switch light guide plate 7, bottom reflective diaphragm 8, blocking switch film 9, FPC circuit chip 10, etc.; among them, switch light guide plate 7 is made of highly transparent materials (such as PC diaphragm, PMMA diaphragm, glass film).
  • the upper surface and the lower surface of the switch light guide plate 7 are provided with an upper reflective film 6 and a lower reflective film 8 respectively (the reflective film of this embodiment adopts a total dielectric reflective film, or a reflective aluminum film, etc.) ,
  • the upper reflective film 6 and the lower reflective film 8 help to reduce the light loss of the light signal in the switch light guide plate 7 (also can use: cancel the reflective film, plating reflective film on the surface of the switch light guide plate 7, magnetic splash Reflective film, etc.
  • the elastic blocking switch sheet 9 (usually injection molded with silicone rubber material) is located under the switch light guide plate 7; the blocking switch sheet 9 is located on the switch light guide plate 7 and the FPC circuit chip 10.
  • the FPC circuit sheet 10 is a 0.1mm thick flexible circuit board; the upper reverse middle hole 6-2 that penetrates the upper reflective film 6 is respectively connected to the through switch light guide plate
  • the guide plate blocking hole 7-2 of 7 and the lower anti-middle hole 8-1 penetrating the lower reflective diaphragm 8 are aligned in position and the diameter of the hole is the same; the guide plate blocking hole 7-2 is respectively the same as that provided on the blocking switch sheet 9
  • the switch blocking body 9-1 and the light source part 10-1 provided on the FPC circuit chip 10 are aligned, and the opening space 7-3 of the guide plate blocking hole 7-2 can accommodate the switch blocking body 9-1, and the guide plate is punched
  • the cross section of the hole formed by the blocking hole 7-2 is the light receiving section 7-4 (
  • the light signal enters the light receiving section 7-4 and passes through the light propagation optical path 7-5 and the optical connector (this The embodiment uses a photosensitive tube) the light path is turned on, and the light propagation light path 7-5 passes through the gap between the light guide mesh points 7-1 and is connected to the optical path of the optical connector (when the optical signal is strong enough, it can also be from the light guide mesh point. 7-1 Light loss occurs below); the upper surface of the switch light guide plate 7 can also be provided with light guide dots (or not), and the light guide dots are made of silk screen light guide ink on the upper surface of the switch light guide plate 7.
  • the light guide dots 7-1 formed by two circular dots are composed of light guide dots 7-1 formed by a plurality of concave lenses hot pressed on the upper surface of the light guide plate 7 of the switch, and the light guide dots are formed by penetrating reflection
  • the reflective and transmissive part 6-1 of the diaphragm 6 (in this embodiment, through holes are used, and the reflective film is usually used to generate a layer of reflective material on a transparent PET sheet, and no reflective material is generated at the position corresponding to the light guide mesh point. It is a light-transmitting and transparent area) and the character light path on the keycap 1 is conducted and the characters are illuminated.
  • the plate-shaped blocking switch sheet 9 (using elastic material) is provided with a switch blocking body 9-1, and the switch blocking body 9-1 is covered by a switch blocking plate 9-2 and a block Space 9-3, blocking connecting plate 9-4, blocking lower through hole 9-5, arch blocking shrapnel 9-6, blocking contact portion 9-7, blocking middle body 9-8, among which, arch blocking shrapnel 9
  • the lower end of -6 is connected with the board surface of the blocking switch piece 9, and the upper end of the arch blocking spring 9-6 is connected upwards with the blocking body 9-8; in the figure, three arch blocking spring pieces 9-6 are used to support the blocking body 9- 8 (The angle of 120 degrees between each arch resistance shrapnel 9-6 is the best); 2 arch resistance shrapnel 9-6 (not shown in the figure) can also be used to support the middle body 9-8 (each arch resistance shrapnel 9- 6 The angle of 180 degrees with each other is the best); it is also possible to use an arch stop shrapne
  • the upper surface of the upper surface of the two blocking connecting plates 9-4 and the upper surface of the anti-arch elastic piece 9-6 upward and the middle body 9-8 are in the same plane or the arch-resistance elastic piece 9-6 upward and the middle body 9-8
  • the connection is higher than the upper surface of the two blocking connecting plates 9-4;
  • the blocking body 9-8 overcomes the elastic force generated by the arch blocking shrapnel 9-6 and moves downward until the two blocking connecting plates 9-4 completely enter the blocking downward penetration.
  • the lower end surface of the hole 9-5 and the blocking body 9-8, and the lower end surfaces of the two blocking connecting plates 9-4 coincide with the lower plate surface of the blocking switch piece 9; when the external force is removed, the blocking body 9-8 and The switch blocking plate 9-2 is reset under the elastic force of the arch blocking shrapnel 9-6.
  • a light source part 10-1 is provided on the sheet-shaped flexible FPC circuit sheet 10, and the light transmitter is constituted by the light source part 10-1;
  • the light source part 10-1 is composed of 3 side-emitting LEDs 10-2 (the LEDs 10-2 are at 120 degrees with respect to each other is the best);
  • the light source part 10-1 is composed of two side-illuminated LEDs 10-2 (the LEDs 10-2 are preferably 180 degrees with each other);
  • the light source unit 10-1 is composed of a side-emitting LED 10-2;
  • the light emitting end of the LED 10-2 is the light emitting window of the LED 10-2.
  • the FPC extension board 10-5 formed on the inwardly extending surface of the FPC circuit chip 10, and the FPC suspension board 10-3 formed on the cantilever end of the FPC extension board 10-5 is packaged with LED chips-formed by COB packaging LED 10-2, finally bend the FPC suspension end plate 10-3 by 90 degrees, so that the LED 10-2 encapsulated on the FPC suspension end plate 10-3 becomes a side-emitting light source; the side-emitting LED 10 of this embodiment -2 consists of a 90-degree FPC suspension plate 10-3 with COB packaged LED chips.
  • the LED 10-2 on the FPC circuit chip 10 and the overhanging end plate 10-3 are located in the upper resistance space 9-3 of the blocking switch chip 9; it should be ensured that: the blocking middle body 9- on the blocking switch chip 9 8 is located in the LED through hole 10-4 on the FPC circuit chip 10.
  • the light signal emitted by the LED 10-2 is emitted from the space between the lower surface of the switch blocking plate 9-2 and the upper surface of the blocking switch sheet 9.
  • Fig. 9 is a front view of a partial cross-sectional view of A in Fig. 1.
  • the blocking contact 9-7 of the blocking switch 9 and the upper part of the blocking body 9-8 are located at the support near the middle of the metal support plate 2.
  • the switch blocking plate 9-2 of the blocking switch piece 9 is located in the outer hole 2-1 of the supporting plate that penetrates the surface of the metal supporting plate 2, and the outer hole 2-1 of the supporting plate is located in the middle hole of the supporting plate Outside of 2-2; the light signal emitted by the side-emitting LED 10-2 enters the switch light guide plate 7 through the light receiving section 7-4 (light receiving window) on the switch light guide plate 7.
  • a sealing film 11 of a thin film can be pasted on the lower surface of the FPC circuit chip 10 (it is best to use a metal film of 0.05mm- It is conducive to the heat dissipation of the keyboard and at the same time has a sealing effect).
  • the bottom surface of the reset body 4 (usually injection molded by silicone rubber material) is sealed and connected to the upper surface of the metal support plate 2, and the upper surface of the array optical switch module 3 and the metal support plate 2
  • the lower surface is sealed and connected to seal the space under the reset body 4, the space of the LED through hole 10-4, the opening space 7-3, etc., to prevent the environment from polluting the light receiving section 7-4 of the switch light guide plate 7 and generating light
  • an exhaust groove (not shown in the figure) is provided on the plate surface of the blocking switch piece 9.
  • the biggest advantage of the switch blocking body 9-1 of the present invention is that the thickness of the array optical switch module 3 is minimized (as shown in Fig. 10, the thickness is only 0.52 mm); the opening space 7-3 of the present invention is sealed.
  • the biggest advantage is that dust is prevented from reducing the light incidence efficiency of the light receiving section 7-4 (light receiving window) of the light guide plate 7 of the switch (especially when the light switch is used for a long time).
  • this embodiment adopts a 101-key notebook keyboard (the array switch module uses the largest amount) to describe in detail the light guide plate optical switch and the light guide plate array optical switch module of the present invention; light guide plate
  • the array optical switch module has 101 optical switches arranged vertically and horizontally. Among them, there are 20 optical switches in the first row, 18 optical switches in the second row, 18 optical switches in the third row, and 16 optical switches in the fourth row. There are 16 optical switches in the fifth row and 13 optical switches in the sixth row;
  • the array optical switch module 3 is composed of an upper reflective film 6, a switch light guide plate 7, a lower reflective film 8, a blocking switch film 9, an FPC circuit chip 10, etc.; among them, the switch light guide plate 7 is made of highly transparent material; The horizontal holes 7-7 and vertical holes 7-8 of the guide plate of the switch light guide plate 7 separate the switch light guide plate 7 into 6 light zones.
  • the 6 light zones are: the first light zone 7a and the second light zone. 7b, the third light area 7c, the fourth light area 7d, the fifth light area 7e, and the sixth light area 7f.
  • two guide plate horizontal holes 7-7 and three vertical guide plate vertical holes 7-8 are used to divide the six Two separate light zones, two guide plate horizontal holes 7-7 and three vertical guide plate vertical holes 7-8 constitute a guide plate exhaust groove.
  • the exhaust groove provided on the array optical switch module 3 consists of the guide plate exhaust groove, Consisting of obstructing exhaust groove;
  • the first light zone 7a uses 19 light emitting windows of the light source section 10-1 to conduct light paths with 19 light switches and a light guide plate light connection section 7-6 (the light emitting window of this embodiment is located in the light source section 10-1. Transmitting end), the light guide plate light connection part 7-6 is connected to the light path of the photosensitive tube; the light guide plate light connection part 7-6 can be formed by multiple circular dots formed by the silk screen light guide ink on the upper surface of the switch light guide plate 7,
  • the light-contacting portion 7-6 of the guide plate can also be composed of dots formed by a plurality of concave lenses hot pressed on the upper surface of the light guide plate 7 of the switch, and the light-contacting portion 7-6 of the guide plate can also be composed of through holes penetrating through the plate surface;
  • the second light zone 10-6 uses the light emitting windows of 18 light source parts 10-1 to conduct light paths with 18 light switches, light guide plate light connection parts 7-6, and a photosensitive tube.
  • the third light zone 7c uses 15 light sources.
  • the light emitting window of part 10-1 is connected to the light path of 15 optical switches, light guide plate light connection part 7-6, and a photosensitive tube.
  • the fourth light zone 7d adopts 14 light emitting windows of light source part 10-1 and 14 light emitting windows.
  • the optical switch, the light connecting part 7-6 of the guide plate, and the light path of a photosensitive tube are turned on, and the fifth light zone 7e uses 16 light emitting windows of the light source part 10-1 and 16 optical switches, the light connecting part 7-6 of the guide plate, The light path of one photosensitive tube is turned on, and the sixth light zone 7f adopts the light emitting windows of 19 light source parts 10-1 to conduct light paths of 19 light switches, light guide plate light connection parts 7-6, and one photosensitive tube;
  • One light source part 10-1 of the third light zone 7c (the number of light source parts 10-1 is at least 13) and one light source part 10-1 of each other light zone are electrically connected (series or parallel and a combination thereof) to form one
  • the light-emitting device group repeat the above process to form 13 groups of light-emitting device groups with six light source parts 10-1 electrically connected;
  • the remaining two light source parts 10-1 that are not electrically connected in the fourth light zone 7d are electrically connected to one light source part 10-1 of each other light zone to form two sets of The five light source units 10-1 are electrically connected to the optical transmitter group;
  • the remaining one light source part 10-1 of the second light zone 7b and the fifth light zone 7e (the number of light source parts 10-1 is 17) is electrically connected to one light source part 10-1 of each other light zone to form 1 group of optical transmitters with four light source parts 10-1 electrically connected;
  • the remaining one light source section 10-1 of the first light zone 7a and the sixth light zone 7f (the number of light source sections 10-1 is 19) is electrically connected to one light source section 10-1 of each of the other light zones to form 2
  • the group is a group of three optical transmitters electrically connected to the light source unit 10-1.
  • the CPU has an on-off interface and a detection interface; the light guide plate is divided into multiple optical zones, and the optical signals in the multiple optical zones are isolated from each other;
  • each optical zone multiple optical transmitters are respectively connected to the optical path of a group of optical connectors or respectively connected to the optical path of an optical connector; the optical transmitters are connected to the on-off interface, and the optical connector is connected to the detection interface. connection;
  • the CPU When in use, the CPU continuously detects the signals of multiple detection interfaces; when the optical switch of a certain light zone is pressed, the CPU determines that a certain light switch of a certain light zone is pressed by detecting the detection interface.
  • the light guide plate is divided into multiple light areas, and the optical signals in the multiple light areas are isolated from each other; in each light area, multiple optical transmitters are respectively connected to the optical path of a group of optical connectors or connected to one light.
  • the optical path of the optical transmitter is turned on; the optical transmitter is connected to the CPU output port, and the optical connector is connected to the CPU input port.
  • the optical transmitter in each optical zone emits an optical signal that can be recognized by the CPU;
  • the CPU When in use, when the optical switch of a certain light zone is pressed, the CPU detects that the optical switch of a certain light zone is pressed by detecting the CPU input port.
  • the light guide plate is composed of a switch light guide plate (7); the optical transmitter is connected with the output port of the CPU: a light transmitter in one light zone is connected with a light transmitter in the other light zone to form a light transmitter group , etcRepeat the above connection process to form multiple optical transmitter groups, which are connected to multiple CPU output ports, so as to ensure: every moment or when the CPU detects the CPU input port , There is only one optical transmitter that emits light signals from the multiple optical transmitters in each optical zone.
  • the switch light guide plate 7 is divided into at least two light areas, the two light areas are the first light area 7a, the second light area 7b, the light signal in the first light area 7a and the light in the second light area 7b Signal isolation; connect the light emitting windows of the multiple optical transmitters in the first optical zone 7a with the optical paths of the multiple optical switches and the first optical connector, and connect the optical transmitters of the multiple optical transmitters in the second optical zone 7b
  • the light emitting window is connected to the optical paths of the multiple optical switches and the second optical connector; connect an optical transmitter in the first optical zone 7a with an optical transmitter in the second optical zone 7b to form a connected optical transmitter group, Connect the first connecting optical transmitter group, the second connecting optical transmitter group, the third connecting optical transmitter group, ...
  • the CPU continuously detects the signal of the first CPU input port and the signal of the second CPU input port; when the optical switch of the first light zone 7a is pressed, the CPU finds the first light zone by detecting the first CPU input port When the light signal of 7a changes, the CPU judges that a light switch of the first light zone 7a is pressed according to the change of the light signal; when the light switch of the second light zone 7b is pressed, the CPU detects the second CPU input port Finding the change of the optical signal of the second optical zone 7b, the CPU determines that a certain optical switch of the second optical zone 7b is pressed according to the change of the optical signal.
  • the light guide plate array optical switch module also includes a CPU.
  • the CPU has multiple CPU output interfaces and CPU input interfaces.
  • the optical transmitter group is connected to the CPU output interface through the CPU output interface, and the optical connector is connected to the CPU input interface through the CPU input interface. Connection; CPU output port, CPU input port and CPU output interface, CPU input interface are located on the same circuit chip or CPU output port, CPU input port and CPU output interface, CPU input interface are located on different circuit chips.
  • the CPU continuously scans and detects each CPU input port or continuously detects each CPU input port at the same time.
  • the CPU detects a signal change of a certain output port, the CPU connects the optical transmitter group and the optical transmitter connected to the CPU output port.
  • the optical zone where the optical transmitters connected in the group are located determines that a certain optical switch is triggered.
  • the CPU When the array optical switch module is working, the CPU is connected to a CPU output port, and the optical transmitter connected to the CPU output port has at most one optical transmitter emitting light signals in each optical zone, and a set of optical connectors in each optical zone When an optical signal is received or an optical connector receives an optical signal, each CPU input port connected to the optical transmitter has a signal input, the CPU judges whether the optical switch of each optical partition is triggered, and the CPU closes the CPU output port;
  • the CPU is connected to another CPU output port.
  • the optical transmitter connected to the CPU output port has at most one optical transmitter emitting light signal in each optical zone, and a group of optical connectors in each optical zone receives the optical signal or An optical connector receives an optical signal, and each CPU input port connected to the optical transmitter has a signal input.
  • the CPU judges whether the optical switch of each optical partition is triggered, and the CPU closes the CPU output port;
  • the optical path of the optical zone is blocked, so that the optical connector of the optical zone cannot receive the optical signal, and the CPU input port connected to the optical connector has no signal input, and the CPU is connected according to the
  • the optical transmitter connection group and the corresponding relationship between the optical zone and the optical connector determine the position of the optical switch.
  • Each CPU output port of the CPU emits different characteristic signals
  • the optical transmitters connected in the optical transmitter group emit different characteristic signals in the same light zone.
  • the switch blocking bodies 9-1 on the blocking switch sheet 9 are arranged vertically and horizontally; the light source parts 10-1 on the FPC circuit chip 10 are arranged vertically and horizontally; the blocking bodies set on the blocking body 9-1 are arranged vertically
  • the body 9-8 is located in the LED through hole 10-4 of the light source part 10-1.
  • the CPU needs 10 I/O ports (CPU needs 10 input interfaces B, 6 input interfaces C, and the switch light guide plate 7 is divided into 6 Each light zone requires 1 photosensitive tube G); this embodiment takes the circuit of the light guide plate array optical switch module of 101 optical switches as an example, and the CPU used by 101 optical switches requires a total of 20 output interfaces.
  • the output interfaces are B1, B2...B20 (B11, B12...B20 and the electrical circuit connected to it are not shown in the figure), and the input interfaces of the six photosensitive tubes G are connected to C1, C2. ...C6 connection;
  • One light emitter in one light zone is connected with one light emitter in another light zone to form an LED group in which the most light emitters in each light zone are connected to each other.
  • Each light zone LED serial number 1 LED connection group is 1 LED connection group (the light emitter connection group is composed of LED connection group), 1 LED connection group is formed by the electrical connection of LED11, LED21, LED31, LED41, LED51, and LED61 (where LEDnm The n means that the LED is located in the n-light zone, and m means the serial number of the light zone where the LED is located) (the electrical connection in the figure is connected in parallel, and in actual applications, it can be connected in series or in parallel or a combination), 1 LED connection group is connected to the B1 of the CPU ;
  • the 2 LED connection group consists of the electrical connections of LED12, LED22, LED32, LED42, LED52, and LED62, and the 2 LED connection group is connected to B2 of the CPU;
  • the 20LED connection group is composed of LED110, LED210, LED310, LED410, LED510, and LED610 electrically connected, and the 20LED connection group is connected to the B20 of the CPU;
  • G1, G2, G3... are photosensitive tubes, and G1, G2, G3... are respectively connected to the first input interface C1C1, the second input interface C2, and the third input interface C3... respectively.
  • the CPU needs 101 output interfaces; the present invention adopts the light-splitting area and adopts the LED-connected circuit structure, and the CPU uses a total of 101 LEDs. 20 output interfaces are required, which greatly reduces the number of output interfaces and greatly reduces the electronic circuit. At the same time, the CPU requires a total of 20 output interfaces to make the CPU scan detection speed more than 5 times higher.
  • the sixth input interface C6 is correspondingly connected.
  • the CPU When in use, the CPU turns on 1LED. At this time, 1LED has at most one light source unit 10-1 in each light zone to emit light signals. At the same time, the CPU continuously detects the signal of the first input interface C1 and the signal of the second input interface C2.. .... The signal of the sixth input interface C6, judge whether there is a change in the optical signal ---- determine which keycap is pressed;
  • the CPU turns on 2LED. At this time, 1LED has at most one light source unit 10-1 emitting light signals in each light zone. At the same time, the CPU continuously detects the signal of the first input interface C1 and the signal of the second input interface C2 etc . The signal of the sixth input interface C6, to determine whether the optical signal has changed ---- to determine which keycap is pressed;
  • the CPU keeps repeating the above detection.
  • the first output interface of the CPU emits an optical signal.
  • the first input interface C1 detects the change of the optical signal of the first optical zone 7a, and the CPU responds to the change of the optical signal. Determine that a certain optical switch in the first optical zone 7a is pressed;
  • the second output interface of the CPU emits an optical signal.
  • the second input interface C2 detects the change of the optical signal of the second optical zone 7b, and the CPU responds to the change of the optical signal. Determine that an optical switch in the second optical zone 7b is pressed;
  • the CPU continuously cyclically scans and detects.
  • the CPU adds the CPU feature output interface ---- CPU feature output interface A1, CPU feature output interface A2,
  • the CPU used by 101 optical switches requires a total of 10 output interfaces, the output interfaces are B1, B2, B3, B4...B10 (including B6, B7...B10 and its electrical
  • the connected circuit is not shown in the figure, input interface: C1, C2...C6, CPU characteristic output interface: A1, A2, CPU requires 17 I/O ports in total;
  • the LED connection group is formed by the electrical connection of LED11, LED21, LED31, LED41, LED51, and LED61;
  • the LED connection group consists of the electrical connections of LED12, LED22, LED32, LED42, LED52, and LED62;
  • the above two LED connection groups are connected together to form an LED characteristic group, and the LED characteristic group is connected to B1;
  • the LED connection group consists of the electrical connections of LED13, LED23, LED33, LED43, LED53, and LED63;
  • the 4 LED connection group consists of the electrical connections of LED14, LED24, LED34, LED44, LED54, and LED64;
  • the above two LED connection groups are connected together to form an LED characteristic group, and the LED characteristic group is connected to B2;
  • the above two LED connection groups are connected together to form an LED feature group, and the LED feature group is connected to B5;
  • the CPU has 2 CPU characteristic output interfaces that emit different characteristic signals: CPU characteristic output interface A1, CPU characteristic output interface A2, and
  • the CPU feature output interface A1 is connected to multiple groups of LED connection groups, and the CPU feature output interface A2 is connected to multiple groups of LED connection groups;
  • Two groups of LEDs are connected to form a group of LED characteristic groups, wherein each LED group that constitutes the LED characteristic group emits a different characteristic signal
  • the first LED feature group is connected to the CPU output interface B1, and the output interface B1 controls the on and off of the first LED feature group.
  • the first LED feature group is composed of two LED connection groups, each of which emits different characteristic signals.
  • the second LED feature group is connected to the II CPU output interface B2, and the output interface B2 controls the on and off of the second LED feature group.
  • the second LED feature group is composed of two LED connection groups, each of which emits different characteristic signals.
  • the third LED characteristic group is connected with the IIICPU output interface B3, and the output interface B3 controls the on and off of the third LED characteristic group.
  • the third LED characteristic group is composed of two LED groups connected together, and the LED groups all emit different characteristic signals.
  • the CPU feature output interface CPU feature output interface A1, CPU feature output interface A2,
  • the CPU feature output interface A3 is constituted, (this embodiment only takes 2 to 3 feature signals as an example, and the feature signals can also be 4 or 5).
  • the CPU used by 101 optical switches requires a total of 8 output interfaces.
  • the interfaces are B1, B2...B8, input interfaces: C1, C2...C6; the CPU used by 101 optical switches requires a total of 17 I/O ports and 5 output interfaces.
  • the number of output interfaces is greatly reduced (the CPU in the scheme shown in Figure 24 needs 20 output interfaces to be reduced to 10 output interfaces), and the electronic circuit is further reduced. At the same time, the CPU requires a total of 10 output interfaces to make the CPU scan detection speed More than 10 times higher.
  • the CPU has 3 CPU characteristic output interfaces that emit different characteristic signals: CPU characteristic output interface A1, CPU characteristic output interface A2, CPU characteristic output interface A3,
  • the CPU feature output interface A1 connects multiple groups of LEDs
  • the CPU feature output interface A2 connects multiple groups of LEDs
  • the CPU feature output interface A3 connects multiple groups of LEDs
  • Three groups of LEDs are connected to form a group of LED characteristic groups, wherein each LED group that constitutes the LED characteristic group emits a different characteristic signal,
  • the first LED feature group is connected to the CPU output interface B1, and the output interface B1 controls the on and off of the first LED feature group.
  • the first LED feature group is composed of three LED connection groups, and each LED connection group emits different characteristics. signal,
  • the second LED feature group is connected to the II CPU output interface B2, and the output interface B2 controls the on and off of the second LED feature group.
  • the second LED feature group is composed of three LED connection groups, and each LED connection group emits different characteristics. signal,
  • the third LED characteristic group is connected with the IIICPU output interface B3, and the output interface B3 controls the on and off of the third LED characteristic group.
  • the third LED characteristic group is formed by connecting three LED groups, and each LED connecting group emits a different characteristic signal. ,........
  • the light guide plate is divided into multiple light zones, and the optical signals propagating in each light zone are isolated from each other; multiple light transmitters in each light zone and a group of light
  • the optical path of an optical connector or an optical connector is turned on, and the optical connector in each optical zone is connected to the signal input interface of the CPU; an optical transmitter in one optical zone is connected to an optical transmitter in another optical zone.
  • the CPU has a CPU feature output interface that outputs multiple different feature signals.
  • Each CPU feature output interface is connected to multiple groups of optical transmitter connection groups, and multiple groups of optical transmitter connection groups are connected to form an optical transmitter feature group to form an optical transmitter.
  • the optical transmitters of each optical transmitter connection group of the characteristic group emit different characteristic signals; multiple optical transmitter characteristic groups are respectively connected to multiple optical CPU input interfaces of the CPU, and each optical transmitter characteristic group is on and off All are controlled by an optical CPU input interface of the CPU; when in use, the CPU continuously detects the signal of each signal input interface.
  • n light areas are the first light area 7a, the second light area 7b, the third light area 7c...the nth light area, and each light area
  • the optical signals are isolated from each other;
  • the CPU has a CPU feature output interface that outputs multiple different feature signals.
  • Each CPU feature output interface is connected to multiple groups of optical transmitter connection groups.
  • the multiple groups of optical transmitter connection groups are connected to form an LED characteristic connection group.
  • the LED characteristic connections are in the The optical transmitters in the same optical zone emit different characteristic signals;
  • Multiple LED feature connection groups are respectively connected to multiple CPU output interfaces of the CPU.
  • the on and off of each LED feature connection group is controlled by a CPU output interface of the CPU.
  • the CPU output interface is controlled by the CPU output interface B1 and the CPU output interface.
  • the first LED characteristic connection group is connected to the CPU output interface B1 of the CPU, and the CPU output interface B1 controls the on and off of the first LED characteristic connection group.
  • the second LED characteristic connection group is connected to the CPU output interface B2 of the CPU, and the second LED characteristic connection group is controlled by the CPU output interface B2.
  • the third LED characteristic group is connected to the IIICPU output interface B3 of the CPU, and the third LED characteristic group is controlled by the IIICPU output interface B3.
  • the CPU When in use, the CPU continuously detects the signal of the first signal input port C1, the signal of the second signal input port C2, the signal of the third signal input port C3...
  • the biggest advantage of dividing the light guide plate into multiple light zones and electrically connecting one light source part 10-1 of each light zone is:
  • the power of the array optical switch is greatly reduced: the present invention scans and detects the power of each optical switch is determined by the power of each optical transmitter connection group.
  • the CPU detects (taking the light guide plate divided into 6 optical zones as an example), this Invented a set of light emitters with a maximum of 6 light source units 10-1 (each LED power 0.06W, a total of 0.36W) to be lit, and 101 light source units 10-1 power (6.06W) to be lit at the same time )Comparison, the power is greatly reduced by 6/101 times; the power of existing notebook computers is generally 55W-60W, and there is a common problem of heat causing its performance to decline. If only the optical keyboard increases the power by about 10%, it is difficult to promote of;
  • the 101-key keyboard has a total of 101 optical switches --- 101 light source parts 10-1 and 101 photosensitive tubes (the circuit is complicated, which requires multiple PCB circuit boards to complete the circuit wiring); the present invention uses the light guide plate to divide It has 6 optical zones and adopts the optical transmitter connection group scheme.
  • the 101 optical switches in this embodiment only need 20 CPU output interfaces and 6 CPU input interfaces (see Figure 21, a total of 26 CPU I/O ports are required) );
  • the CPU adds 2 CPU feature output interfaces.
  • the 101 optical switches in this embodiment only require 10 CPU output interfaces and 6 CPU input interfaces (see Fig. 21, a total of 18 CPU I/O ports are required).
  • Each output interface of the CPU sends out different characteristic signals; when there are more than two keys pressed at the same time in the same light zone, the CPU will not be able to distinguish that there are more than two keys pressed at the same time in the same light zone (existing keyboards)
  • the thin film array switch circuit technology of the CPU is used to increase the CPU input interface to solve this problem. For example, Ctrl+A is commonly used, and Ctrl is connected to an input interface of the CPU separately), see Figure 21.
  • Each output interface B of the CPU sends out different characteristic signals (Similar to a TV remote control, each key is pressed, the TV remote control sends out different characteristic signals), the 20 output interfaces of the CPU (101 optical switch schemes) send different characteristics to the 20 groups of light source unit 10-1 connection groups
  • the CPU distinguishes the keys in the same light zone according to the different characteristic signals received.
  • the present invention can achieve the full keyboard without key conflicts. When any n keys are pressed at the same time, the CPU can recognize it, which is especially suitable for game players. use.
  • the existing membrane array switch circuit is mounted on the metal support plate 2.
  • the membrane array switch circuit has as many openings as the metal support plate 2.
  • the membrane array switch circuit has a complicated waterproof process and poor reliability.
  • the light guide module of the present invention It is installed under the metal support plate 2 with fewer process openings, simple waterproof process, and outstanding waterproof performance.
  • the upper reflective film 6 and the lower reflective film 8 are respectively pasted on the upper surface of the switch light guide plate 7 and the lower surface of the switch light guide plate 7, and the lower reflective film 8 is in contact with the switch light guide plate 7.
  • the guide plate horizontal hole 7-7 and the guide plate vertical hole 7-8 are provided with a through hole at the aligned position.
  • the through hole is the same size as the guide plate horizontal hole 7-7 and the guide plate vertical hole 7-8, and an extension is provided in the through hole.
  • the outer size of the lower reflective film 8 is the same as the outer size of the upper reflective film 6, and there are extended edges around the outer shape of the lower reflective film 8, and the upper plane of the lower reflective film 8 is attached to the lower surface of the switch light guide plate 7.
  • the extended side is bonded to the lower surface of the upper reflective film 6 to form a lower horizontal reverse side 8-3 and a lower vertical reverse side 8-2.
  • the lower horizontal reverse side 8-3 and the lower vertical reverse side 8-3 Yanbian 8-2 constitutes a reflective film
  • the lower horizontal reverse side 8-3 is bonded to the lower surface of the upper reflective film 6
  • the lower vertical reverse side 8-2 covers the cross section perpendicular to the upper and lower surfaces of the switch light guide plate 7;
  • the cross section of the cover and switch light guide plate 7 is to reduce light loss (after the light propagates to the cross section of the switch light guide plate 7, it is reflected back into the switch light guide plate 7 by the vertical reverse side 8-2), and at the same time, the vertical reverse side 8- 2 Play the role of isolating each light zone.
  • the array optical switch module 3 is provided with an exhaust slot, which consists of a blocking exhaust slot provided on the blocking switch sheet 9 and a switch board provided on the switch light guide plate 7.
  • Exhaust grooves are constituted; among them, the blocking exhaust grooves are constituted by the obstructive horizontal exhaust grooves 9-9 and the obstructive vertical exhaust grooves 9-10. Among them, each row of horizontally arranged obstructive exhaust grooves 9-9 and each row of All the lower blocking through holes 9-5 of the blocking switch piece 9 are connected, and the vertical blocking vent groove 9-10 is connected with the blocking down through hole 9-5 of the blocking switch piece 9;
  • the exhaust slot of the switch board is composed of the horizontal holes 7-7 of the guide plate and the vertical holes 7-8 of the guide plate.
  • the exhaust gap 9-11 is connected to the switch board row
  • the position of the air slot is aligned and spatially connected (in this embodiment, the exhaust gap 9-11 is aligned with the lower part of the vertical stop exhaust slot 9-10 and connected in space), and an air filter is provided in the exhaust gap 9-11
  • the air filter material 12 is made of material, and the exhaust groove is communicated with the atmosphere through the air filter material 12; the array optical switch module 3 is provided with an exhaust groove, which solves the problem that the reset body 4 is difficult to press after the optical switch is fully sealed.
  • the light guide plate is composed of the switch light guide plate 7.
  • the switch light guide plate 7 is provided with a light guide plate through hole penetrating its surface, and the light guide plate through hole is composed of LED switch holes 7-9 and the light guide plate.
  • the blocking hole 7-2, the left front light path hole 7-10, and the right front light path hole 7-11 are constituted.
  • the light transmitter is a side-emitting light transmitter, which is located in the LED switch hole 7-9, and the left front light path hole 7-10.
  • the right front light path hole 7-11 penetrates the surface of the switch light guide plate 7, and a front light path board 7-12 is formed between the left front light path hole 7-10 and the right front light path hole 7-11; the front light path board 7-12 One end is located on the side wall of the LED switch hole 7-9 and is connected to the optical path of the optical transmitter. The other end of the front optical circuit board 7-12 is located on the side wall of the guide plate blocking hole 7-2, and the front optical circuit board 7-12 It is part of the light path of propagation.
  • the upper and lower surfaces of the switch light guide plate 7 are covered with a reflective film, and one of the reflective films is provided with a right front reflective hole 6-5, a left front reflective hole 6-4, a right front reflective hole 6-5, and a left front reflective hole through the plate surface.
  • the holes 6-4 correspond to the positions of the right front light path holes 7-11 and the left front light path holes 7-10 respectively;
  • the reflective film is located on the side of the right front reflection hole 6-5 and the left front reflection hole 6-4 close to the front light path plate 7-12
  • the right front side film 6-8 and the left front side film 6-7 constitute the reflective film of the reflective film, and the reflective film of the reflective film Glue and connect with another reflective film;
  • the left and right cross sections of the front optical circuit board 7-12 are respectively covered by the left front extension film 6-7 and the right front extension film 6-8.
  • the left and right cross sections of the front optical circuit board 7-12 are formed by the right front reflection hole 6-5.
  • the left front reflective hole 6-4 is formed, and the optical switch module further includes a photoresist drain, which blocks the optical signal from leaking from the optical switch.
  • this embodiment uses a 101-key notebook keyboard (with the largest usage of the array switch module) to illustrate the light guide plate optical switch and the light guide plate array optical switch module of the present invention in detail.
  • Fig. 33-Fig. 34 and Fig. 33 are partial cross-sectional views of G in Fig. 31.
  • the key device of a key position shown in the figure consists of a key cap 1, a metal support plate 2, an array optical switch module 3, and a reset body 4 (not shown in the figure). (Shown), a pair of plastic supports 5 (not shown in the figure).
  • the array optical switch module 3 of the present invention is located under the metal support plate 2 of the notebook keyboard.
  • the array optical switch module 3 is composed of an upper reflective film 6, a switch light guide plate 7, a lower reflective film 8, and a blocking
  • the switch sheet 9, the FPC circuit sheet 10, and the light-emitting light guide plate 13 are constituted; wherein the upper surface and the lower surface of the switch light guide plate 7 are provided with an upper reflective film 6 and a lower reflective film 8 respectively attached;
  • this embodiment adopts:
  • the switch light guide plate 7 is located between the blocking switch sheet 9 and the FPC circuit sheet 10 and above the FPC circuit sheet 10 (the blocking switch sheet 9 is located above the switch light guide plate 7), and the light-emitting light guide plate 13 is located above the blocking switch sheet 9 .
  • the switch light guide plate 7 is provided with an LED switch hole 7-9 and a guide plate blocking hole 7-2 that penetrates its surface;
  • the light-emitting light guide plate 13 is provided with an LED light-emitting hole 13 that penetrates its surface -2, light-emitting plate hole 13-3, the light-emitting light guide plate 13 is made of highly transparent materials (such as PC film, PMMA film, glass film, etc.), and the upper and lower surfaces of the light-emitting light guide plate 13 are also attached with upper and lower reflective films ( (Not shown in the figure), the upper surface of the light-emitting light guide plate 13 is provided with light-guiding dots, which are composed of light-emitting and guiding dots 13-1, and the light-emitting and guiding dots 13-1 are connected to the character light path on the keycap 1. And make the characters illuminate; the blocking switch sheet 9 is provided with LED blocking holes 9-13 penetrating the board surface, and the switch barrier 9-14; the flexible FPC circuit sheet 10 is provided with side-emit
  • LED light-emitting hole 13-2, LED blocking hole 9-13, LED switch hole 7-9, and side LED10-6 are aligned.
  • LED light-emitting hole 13-2, LED blocking hole 9-13, LED switch Holes 7-9 can accommodate side LED10-6;
  • switch barrier 9-14 is aligned with the guide plate blocking hole 7-2, and the light-emitting board hole 13-3 can accommodate the switch barrier 9-14;
  • LED switch hole 7-9 can accommodate LED leakage wall 9-12;
  • the switch light guide plate 7 is provided with a light guide plate through hole penetrating its surface.
  • the light guide plate through hole is composed of the LED switch hole 7-9, the guide plate blocking hole 7-2, the left front light path hole 7-10 and
  • the right front light path hole 7-11 is composed of the side LED 10-6 that emits light from the side, the side LED 10-6 is located in the LED switch hole 7-9, the left front light path hole 7-10 and the right front light path hole 7-11 penetrate the switch
  • the surface of the light guide plate 7 forms a front light path board 7-12 between the left front light path hole 7-10 and the right front light path hole 7-11; one end of the front light path board 7-12 is located on the side wall of the LED switch hole 7-9 , And connected to the optical path of the optical transmitter, the other end of the front optical circuit board 7-12 is located on the side wall of the guide plate blocking hole 7-2, the front optical circuit board 7-12 is a part of the propagation light path; side LED10-6 The light emission window is located at one end of the
  • the blocking switch sheet 9 is provided with LED blocking holes 9-13 penetrating through its board surface, and the LED blocking holes 9-13 are provided with light blocking and blocking drains, and the light blocking and blocking drains are formed by LEDs.
  • the leakage blocking wall 9-12 and the long leakage blocking wall 9-14 are formed or the light blocking leakage blocking part is formed by the LED leakage blocking wall 9-12, which is located at the edge of the LED blocking hole 9-13.
  • the LED leakage blocking wall 9-12 is ring-shaped and protruding from the surface of the blocking switch piece 9.
  • a long leakage blocking wall 9-14 is provided on the opposite side of the blocking switch piece 9 on the blocking switch piece 9.
  • An arch-shaped flexible switch barrier 9-14 is also provided (a middle contact 9-7 is provided on the top of the switch barrier 9-14, and the LED barrier hole 9-13 is connected to the switch barrier 9-14.
  • a light-transmitting gap 15 is opened on the LED leakage blocking wall 9-12 between.
  • the metal supporting plate 2 is provided with a supporting plate middle hole 2-2, the supporting plate middle hole 2-2 corresponds to the position of the reset body 4, and the blocking contact portion 9-7 passes through the supporting plate middle hole 2- 2
  • the upper end surface is located above the upper surface of the metal supporting plate 2.
  • the side-emitting LED is located in the LED switch hole 7-9 of the light guide plate 10-1, the LED switch hole 7-9 and the blocking through hole 9-2, the optical path of the optical connector are connected, and the light emitting window of the LED is connected to the optical connector.
  • the position of the light receiving window corresponds and the light path is conducted; the through hole 9-2 is blocked from conducting the light path of the optical connector.
  • Light barrier 9-16
  • the switch light guide plate 7 is divided into multiple optical zones, and the optical signals in the multiple optical zones are isolated from each other; in each optical zone, multiple optical transmitters are connected to a set of optical connectors.
  • the optical path of each is connected or respectively connected to the optical path of an optical connector.
  • the light guide plate is composed of a light-emitting light guide plate 13 and a switch light guide plate 7.
  • the light-emitting light guide plate 13 is located above the switch light guide plate 7, and the upper surface of the light-emitting light guide plate 13 is provided with light-emitting mesh points 13-1.
  • the light signal emitted by the transmitter is connected to the light path of the light emitting and guiding dot 13-1.
  • the light-emitting light guide plate 13 is provided with a light-emitting plate hole 13-3 passing through the surface of the light-emitting light guide plate 13; the blocking space 9-1 on the light guide plate 7 is switched on and the light is emitted.
  • LED light-emitting hole 13-2 can accommodate the light transmitter.
  • both the upper and lower surfaces of the switch light guide plate 7 are provided with reflective films that reflect light signals, and the reflective film is provided with a reflective film;
  • the switch light guide plate 7 is provided with an open guide reflective hole 7-13 penetrating its surface, The cross section formed by punching and forming the reflective hole 7-13 is the end section 7-14 of the guide plate, and the reflective film covers the end section 7-14 of the guide plate to form a light reflecting surface;
  • the angle between the front light guide path 7-15 and the end section 7-14 of the guide plate is equal to the angle between the reflected light path 7-16 and the end section 7-14 of the guide plate, so that the optical signal emitted by the optical transmitter through the optical switch will follow the front light path 7- 15
  • the reflective film is extended, and the reflective film reflects the optical signal, and the reflected optical signal is connected to the optical connector along the reflective optical path 7-16.
  • the upper and lower surfaces of the switch light guide plate 7 are covered with reflective films.
  • the reflective film on the upper surface of the switch light guide plate 7 is provided with a reflective film or the reflective film on the lower surface of the switch light guide plate 7 is provided with a reflective film. Or extend the reflective film to the position corresponding to the end section 7-14 of the guide plate, and the reflector film is bent to cover the end section 7-14 of the guide plate to connect with the lower reflector film or the reflector film is bent to cover the end section 7-14 of the guide plate and the upper
  • the reflective film is connected; the reflective film is composed of the vertical reversed side 6-9 and the horizontal reversed side 6-10.

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Abstract

一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通，当光开关被触发时，光发器与光接器的传播光路产生通断；导光板分为多个光区，多个光区内的光信号被彼此隔离；在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通；光发器与CPU输出口连接，光接器与CPU输入口连接；提供制作工艺简单、生产成本低的薄膜光开关，特别是提供一种使用寿命长，超薄的薄膜光开关，可广泛应用于PC键盘、薄型的薄膜键盘、薄型的笔记本键盘。

Description

一种导光板光开关及导光板阵列光开关模块 技术领域
本发明涉及薄膜阵列光开关及采用薄膜阵列光开关的键开关，特别涉及装载在作为电子仪器的输入装置的键盘中的薄膜阵列光开关。
背景技术
现有的接触式薄膜阵列开关电路存在的问题：
现有键盘采用的超薄的接触式薄膜阵列开关电路由两张印有银浆电路及银浆触点的电路薄膜及一张隔离薄膜构成，其中，两张电路薄膜的银浆电路、银浆触点采用银浆丝印在薄膜上，形成很薄的银浆电路、银浆触点，在隔离薄膜上有贯穿孔，隔离薄膜位于两张电路薄膜之间并分别与两张电路薄膜粘接在一起，两张电路薄膜由上层电路薄膜及下层电路薄膜构成，上层电路薄膜的银浆触点、下层电路薄膜的银浆触点、隔离薄膜上的贯穿孔位置对应；使用时在外力作用下，上层电路薄膜的银浆触点与下层电路薄膜的银浆触点在隔离薄膜上的贯穿孔内接触，开关导通，去掉外力上层电路薄膜的银浆触点复位，开关断开；现有的接触式薄膜阵列开关电路的银浆触点易氧化、易磨损，使用寿命短。
全世界范围内因接触式薄膜阵列开关电路的问题浪费巨大，迄今还无一种低成本、超薄、经久耐用、非接触式薄膜光开关的投入产业化生产。
采用导光板阵列光开关存在的问题：
1.需要大量的控制器芯片(以下均简称CPU)的I/O口资源－－－成本大幅上升
现有101键位的键盘共六行，一行最多20个键位，一行最少16个键位，如果不考虑键位冲突，共CPU的I/O口需：输出接口O(输出接口)为20个，输入接口I(输入接口)为6个，为解决部分键位冲突，CPU的I/O口共采用30路(键位冲突:如同时按下几个键时，CPU不能识别被同时按下的几个键位的座标)现有键盘的键位较多，有50键位的小键盘、有83键位的键盘、有101键位的键盘、有120键位的键盘，如果CPU给每个键位分配一个输出接口并与一个LED连接(每个键位的光开关设置一个LED光源)，需要大量的CPU输出接口资源，造成PCB板(电路片3-1)的电子电路非常复杂且CPU体积庞大，成本大幅上升；
2. 101个LED功耗太大：
以常用的有101键位的键盘为例，101个LED功率(按每个LED功率0.06W计)为6.06W，有背光源的笔记本键盘采用约12个LED约功率为1W，现有笔记本电脑功率一般为55W－－60W，普遍存在发热导致其性能下降的问题，如果仅光电键盘就增加约10％的功率， 是很难推广的；
3.键位冲突：
现有键盘的薄膜阵列开关电路的开关电路均采用矩阵电路技术，为解决键位冲突问题，均采增加CPU的I/O口来解决此问题，如常用组合键Ctrl+A，将Ctrl键的开关、A键的开关分别与CPU的两个输入接口连接；
4.使用导光板的键盘的键发光不均匀，距光源部10-1近端键帽的亮度与距光源部10-1远端键帽的亮度很难调一致；
5.在导光模块中増加光开关，增加101个光源部10-1，光源部10-1的成本圴0.03元/个，而取消采用印刷银浆的薄膜阵列开关电路，薄膜阵列开关电路约7元/个--127元/个(大幅降低键盘成本)；
6.薄膜阵列开关电路被安装在金属支板2之上，薄膜阵列开关电路开孔与金属支板2开孔一样多，薄膜阵列开关电路防水工艺复杂且可靠性差。
发明内容
本发明的目的在于：本发明提供制作工艺简单、生产成本低的非接触式导光板上的阵列光开关，特别是提供一种使用寿命长，厚度超薄的导光薄膜光开关阵列；同时，对导光薄膜光开关阵列密封后，导光薄膜光开关阵列可水洗，其使用寿命也可大幅提高。
本发明的一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、光开关、CPU，导光板，光发器发射的光信号通过光开关与光接器光路导通，当光开关被触发时，光发器与光接器的传播光路产生通断，其中，CPU有通断接口、有检测接口；
导光板分为多个光区，多个光区内的光信号被彼此隔离；
在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通；
光发器与通断接口连接，光接器与检测接口连接；
使用时，CPU不断检测多个检测接口的信号；
当某个光区的光开关被按下时，CPU通过检测检测接口，从而判断某个光区的某光开关被按下。
包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通，当光开关被触发时，光发器与光接器的传播光路产生通断；导光板分为多个光区，多个光区内的光信号被彼此隔离；在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通；光发器与CPU输出口连接，光接器与CPU输入口连接；使用 时，CPU检测多个CPU输入口的信号；当某个光区的光开关被按下时，CPU通过检测CPU输入口，从而判断某个光区的某光开关被按下。
进一步的是：导光板由开关导光板7构成；光发器与CPU输出口连接采用：由其中一个光区内的一个光发器与另一个光区内的一个光发器连接形成光发器连组，.....重复上述连接过程，从而形成多个光发器连组，多个光发器连组分别与多个CPU输出口对应连接。
包括光发器、光接器、电路片、光开关，开关导光板，光发器发射的光信号通过光开关与光接器光路导通；当光开关被触发时，光发器与光接器的光路产生通断；将开关导光板7分为至少两个光区，两个光区分别为第一光区7a、第二光区7b，将第一光区7a内的光信号与第二光区7b内的光信号隔离；将第一光区7a内的多个光发器的光发射窗口与多个光开关、第一光接器的光路导通，将第二光区7b内的多个光发器的光发射窗口与多个光开关、第二光接器的光路导通；将第一光区7a的一个光发器与第二光区7b的一个光发器连接，形成连接光发器组，将第一连接光发器组、第二连接光发器组、第三连接光发器组、.....第n连接光发器组分别与第一CPU输出口、第二CPU输出口、第三CPU输出口、.....第nCPU输出口对应连接；将第一光接器、第二光接器分别与CPU的第一CPU输入口连接、CPU的第二CPU输入口连接；使用时，CPU不断检测第一CPU输入口的信号、第二CPU输入口的信号；当第一光区7a的光开关被按下时，CPU通过检测第一CPU输入口发现第一光区7a光信号的变化，CPU拫据光信号的变化而判断第一光区7a的某光开关被按下；当第二光区7b的光开关被按下时，CPU通过检测第二CPU输入口发现第二光区7b光信号的变化，CPU拫据光信号的变化而判断第二光区7b的某光开关被按下。
进一步的是：导光板阵列光开关模块还包括CPU，其中，CPU有CPU输出接口、有CPU输入接口；电路片上的CPU输出口、CPU输入口分别与另一电路片上的CPU输出接口、CPU输入接口对应连接或CPU输出口、CPU输入口分别与CPU输出接口、CPU输入接口对应连接，CPU输入口、CPU输出接口、CPU输入接口位于同一电路片上。
进一步的是：CPU不断循环扫描检测各CPU输入口或不断同时检测各CPU输入口，当CPU检测到某个输出口的信号变化时，CPU根据与该CPU输出口连接的光发器连组及该光发器连组连接的光发器所在的光区判断某光开关被触发。
进一步的是：阵列光开关模块工作时，CPU连通一个CPU输出口，与该CPU输出口连接的光发器连组在每个光区最多只有一个光发器发射光信号，各光区的一组光接器接收到光信号或一个光接器接收到光信号，与该光发器连组连接的各CPU输入口有信号输入，CPU判 断各光分区是否有光开关被触发，CPU关闭该CPU输出口；CPU再连通另一个CPU输出口，与该CPU输出口连接的光发器连组在每个光区最多只有一个光发器发射光信号，各光区的一组光接器接收到光信号或一个光接器接收到光信号，与该光发器连组连接的各CPU输入口有信号输入，CPU判断各光分区是否有光开关被触发，CPU关闭该CPU输出口；......不断循环上述过程；
当某光开关被触发时，该光区的光路被阻断，使该光区的光接器接收不到光信号，与该光接器连接的CPU输入口无信号输入，CPU拫据连通的光发器连组及光区与光接器的对应关系判断该光开关的位置。
进一步的是：CPU的各CPU输出口均发射不同的特征信号，光发器连组所连接的光发器在同一光区的均发射不同的特征信号。
包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通；当光开关被触发时，光发器与光接器的光路产生通断；将导光板分为多个光区，各光区内传播的光信号彼此被隔离；每个光区内的多个光发器与一组光接器或一个光接器的光路导通，每个光区内的光接器分别与CPU的信号输入接口连接；
将一个光区内的一个光发器与另一光区内的一个光发器连接，形成各光区的最多一个光发器相互连接的一个光发器连接组.......重复上述连接过程，从而形成多个光发器连接组；CPU有输出多个不同特征信号的CPU特征输出接口，每个CPU特征输出接口连接多组光发器连接组，由多组光发器连接组连接构成一个光发器特征组，构成光发器特征组的每一组光发器连接组的光发器均发射不同特征信号；多个光发器特征组分别与CPU的多个光CPU输入接口连接，每一个光发器特征组的通断均由CPU的一个光CPU输入接口控制；使用时，CPU不断检测各信号输入接口的信号。
包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通；当光开关被触发时，光发器与光接器的光路产生通断；将导光板分为n个光区，n个光区分别为第一光区7a、第二光区7b、第三光区7c.......第n光区，将各光区内的光信号彼此被隔离；将第一光区7a内的多个光发器与第一光接器G1光路导通，将第二光区7b内的多个光发器与第二光接器G2光路导通，将第三光区7c内的多个光发器与第三光接器G3光路导通，.......；将第一光区7a的一个光发器、第二光区7b的一个光发器、第三光区7c的一个光发器.......电气连接，形成一个光发器连接组，依此重复连接，形成第一光发器连接组、第二光发器连接组、第三光发器连接组.......；CPU有输出多个不同特征信 号的CPU特征输出接口，每个CPU特征输出接口连接多组光发器连接组，由多组光发器连接组连接构成一个LED特征连组，LED特征连组在同一光区的光发器均发射不同特征信号；多个LED特征连组分别与CPU的多个CPU输出接口连接，每一个LED特征连组的通断均由CPU的一个CPU输出接口控制，CPU输出接口由Ⅰ CPU输出接口B1、Ⅱ CPU输出接口B2、ⅢCPU输出接口B3.......构成，由第一LED特征连组与CPU的Ⅰ CPU输出接口B1连接，由Ⅰ CPU输出接口B1控制第一LED特征连组的通断，由第二LED特征连组与CPU的Ⅱ CPU输出接口B2连接，由Ⅱ CPU输出接口B2控制第二LED特征连组的通断，由第三LED特征连组与CPU的ⅢCPU输出接口B3连接，由ⅢCPU输出接口B3控制第三LED特征连组的通断.......；将第一光区7a的第一光接器G1、第二光区7b的第二光接器G2、第三光区7c的第三光接器G3.......，分别与CPU的第一信号输入口C1连接、CPU的第二信号输入口C2连接、第三信号输入口C3、CPU的第三信号输入口C3.......对应连接；
使用时，CPU不断检测第一信号输入口C1的信号、第二信号输入口C2的信号、第三信号输入口C3的信号......。
进一步的是：CPU有2个发射不同特征信号的CPU特征输出接口：CPU特征输出接口A1、CPU特征输出接口A2，CPU特征输出接口A1连接多组光发器连组，CPU特征输出接口A2连接多组光发器连组；由分别与CPU特征输出接口A1、CPU特征输出接口A2连接的两组光发器连组连接构成第一光发器特征组，第一光发器特征组再与Ⅰ CPU输出接口B1连接，
由分别与CPU特征输出接口A1、CPU特征输出接口A2连接的两组光发器连组连接构成第二光发器特征组，第二光发器特征组再与Ⅱ CPU输出接口B2连接，
由分别与CPU特征输出接口A1、CPU特征输出接口A2连接的两组光发器连组连接构成第三光发器特征组，第三光发器特征组再与ⅢCPU输出接口B3连接，.......
由分别与CPU特征输出接口A1、CPU特征输出接口A2连接的两组光发器连组连接构成第n光发器特征组，第n光发器特征组再与CPU输出接口Bn连接；
由输出接口B1、输出接口B2、输出接口B3.......输出接口Bn分别控制第一光发器特征组、第二光发器特征组、第三光发器特征组.......第n光发器特征组的通断。
进一步的是：导光板阵列光开关模块还包括电路片，电路片设置有CPU输出口、CPU输入口、CPU特征输出口，CPU输出口、CPU输入口、CPU特征输出口分别与CPU的CPU输出接口、CPU的CPU输出接口、CPU的CPU特征输出接口对应连接；电路片上的CPU输出口、CPU输入口、CPU特征输出口分别与另一电路片上的CPU输出接口、CPU输入接口、 CPU特征输出接口对应连接或CPU输出口、CPU输入口分别、CPU特征输出口与CPU输出接口、CPU输入接口、CPU特征输出接口对应连接，CPU输出口、CPU输入口分别、CPU特征输出口与CPU输出接口、CPU输入接口、CPU特征输出接口位于同一电路片上。
进一步的是：CPU有2个发射不同特征信号的CPU特征输出接口：CPU特征输出接口A1、CPU特征输出接口A2，其中，A1发出01，A2发出10时，应确保：A1发出0，A2发出1两个信号时在时间上同步；A1发出1，A2发出0两个信号时在时间上同步，从而确保每一刻均只有一组光发器连组发光或CPU有3个发射不同特征信号的CPU特征输出接口：CPU特征输出接口A1、CPU特征输出接口A2、CPU特征输出接口A3，其中，A1发出001，A2发出100，A3发出010时，应确保：A1发出0，A2发出1，A3发出0三个信号时在时间上同步；A1发出0，A2发出0，A3发出1三个信号时在时间上同步；A1发出1，A2发出0，A3发出0三个信号时在时间上同步，从而确保每一刻均只有一组光发器连组发光或CPU有4个发射不同特征信号的CPU特征输出接口：.......。
进一步的是：各光区内的光发器数量相等时，每组光发器连组的光发器数量相同或各光区内的光发器数量不相等时，部分光发器连组的光发器数量不相同。
包括光发器、光接器、电路片、导光板、光开关，其中，光发器发射的光信号通过导光板上的传播光路、光开关与光接器光路导通，当光开关被触发时，光发器与光接器的光路产生通断；导光板由开关导光板7构成，开关导光板7上设置有贯穿其板面的导光板贯穿孔，导光板贯穿孔由LED开关孔7-9、导板阻断孔7-2、左前光路孔7-10及右前光路孔7-11构成，其中，光发器为侧面发光的光发器，光发器位于LED开关孔7-9内，左前光路孔7-10、右前光路孔7-11贯穿开关导光板7的板面，在左前光路孔7-10、右前光路孔7-11之间形成前光路板7-12；前光路板7-12的一端位于LED开关孔7-9的侧壁上，并与光发器光路导通，前光路板7-12的另一端位于导板阻断孔7-2的侧壁上，前光路板7-12是传播光路的一部份。
进一步的是：开关导光板7的上下表面均贴有一张反射膜，其中一张反射膜片设置有贯穿其板面的右前反射孔6-5、左前反射孔6-4，右前反射孔6-5、左前反射孔6-4分别与右前光路孔7-11、左前光路孔7-10位置对应；该反射膜片在右前反射孔6-5、左前反射孔6-4的靠近前光路板7-12的边分别有向外延伸的右前延边膜6-8、左前延边膜6-7，由右前延边膜6-8、左前延边膜6-7构成该反射膜的延反射膜，该反射膜的延反射膜与另一张反射膜片粘接连接；前光路板7-12的左右两个截面分别被左前延边膜6-7包覆、右前延边膜6-8包覆，前光路板7-12的左右两个截面由成型右前反射孔6-5、左前反射孔6-4形成。
进一步的是：开关导光板7被分为多个光区，多个光区内的光信号被彼此隔离；在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通。
进一步的是：光开关模块还包括有反射光信号的反射膜，开关导光板7的上下表面均设置有反射光信号的反射膜，反射膜设置有延反射膜；开关导光板7设置有贯穿其板面的开导反射孔7-13，冲裁成型开导反射孔7-13形成的截面为导板端截面7-14，延反射膜包覆导板端截面7-14形成光反射面；前导光路7-15与导板端截面7-14的夹角与反射光路7-16与导板端截面7-14的夹角相等，使光发器经光开关发射的光信号，沿前导光路7-15经导板端截面7-14、延反射膜，延反射膜反射光信号，反射出的光信号沿反射光路7-16与光接器的导通。
进一步的是：导光板由发光导光板13及开关导光板7构成，发光导光板13位于开关导光板7的上方，其中，发光导光板13的上表面设置有发导光网点13-1，光发器发射的光信号与发导光网点13-1光路导通，发光导光板13设置有贯穿其板面的发光板孔13-3；开关导光板7上的阻断空间(9-1)与发光导光板13上的发光板孔13-3位置对准；发光导光板13上设置的LED发光孔13-2与开关导光板7上设置的LED开关孔7-9位置对准，LED开关孔7-9、LED发光孔13-2均能容纳光发器。
进一步的是：光开关模块还包括光阻漏部，光阻漏部阻挡光信号从光开关漏出。
本发明的积极效果是：
本发明提供制作工艺简单、生产成本低的薄膜光开关，特别是提供一种使用寿命长，超薄的薄膜光开关，薄膜光开关可广泛应用于PC键盘、薄型的薄膜键盘、薄型的笔记本键盘；薄型的薄膜键盘广泛应用于医疗设备、工控设备、家用电器如洗衣机、微波炉等。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附
图1是采用本发明光开关及光模块的一种101个键位的笔记本键盘的立体图；
图2是图1的A局部剖视图；
图3是图2的爆炸立体图；
图4是图2的爆炸立体图；
图5是本发明的阻断开关片9的局部立体图；
图6是本发明的FPC电路片10的立体图；
图7是本发明的阻断开关片9安装在FPC电路片10的局部立体图；
图8是图7的阻中触部9-7被按下的立体图；
图9是图2的主视图；
图10是图9的B-B剖视图；
图11是图10的键帽1被按下的立体图；
图12是本发明的阵列光开关模组3被安装在金属支板2下的立体图；
图13是图12的阻中触部9-7被按下的立体图；
图14本发明的阵列光开关模组3的立体图；
图15是图14的阻中触部9-7被按下的立体图；
图16是本发明的101个光开关的阵列光开关模组3的爆炸图；
图17是本发明的101个光开关的开关导光板7的主视图；
图18是图17的开关导光板7上表面贴覆了上反射膜片6的视图；
图19是本发明的有101个光开关的阻断开关片9的局部放大图；
图20是本发明的有101个光开关的FPC电路片10的局部放大图；
图21是本发明的50个光开关至65个光开关的电路图；
图22是本发明的50个光开关至65个光开关的并有两个特征信号的电路图；
图23是本发明的50个光开关至65个光开关的并有叁个特征信号的电路图；
图24是本发明的101个光开关的阵列光开关模组3的主视图；
图25是图24的D-D剖视图；
图26是图24的E-E剖视图；
图27是本发明的有101个光开关的阻断开关片9上的排气排分布的主视图；
图28是本发明的有101个光开关的开关导光板7上的排气排分布的主视图；
图29是本发明的101个光开关的阵列光开关模组3上的排气排分布的主视图；
图30是图29的F局部放大图；
图31是图30的放大立体图；
图32是采用本发明另一光开关及光模块的一种101个键位的笔记本键盘的立体图；
图33是图32的A局部剖视图；
图34是图33的爆炸立体图；
图35是图33的另一爆炸立体图；
图36是图33的采用的阵列光开关模组3的立体图；
图37是图36的开关导光板7及上下反射膜的爆炸立体图；
图38是图37的上下反射膜贴合在开关导光板7上的立体图；
图39是图33的采用的阵列光开关模组3采用的阻断开关片9的立体图；
图40是图38的贴合了上下反射膜的开关导光板7与阻断开关片9位置关系立体图；
图41是图33的另一爆炸立体图；
图42是图33的主视图；
图43是图42的H-H剖视图；
图44是图43的键帽1被按下的立体图；
图45是图32采用的阵列光开关模组3的局部放大立体图；
图46是图32采用的阵列光开关模组3的爆炸立体图；
图47是图32采用的阵列光开关模组3的开关导光板7的主视图；
图48是图32采用的阵列光开关模组3的贴覆了上反射膜的开关导光板7的主视图；
图49是图48的局部放大图；
图50是图47的局部放大图；
图51是图50的开关导光板7被贴覆了上反射膜的示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
如图1-图15、一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、导光板、光开关，其中，光发器发射的光信号通过导光板上的传播光路、光开关与光接器光路导通，当光开关被触发时，光发器与光接器的光路产生通断；导光板由开关导光板7构成，光开关由阻断开关片9上的开关阻断体9-1、光发器、光接器、开关导光板7、开关导光板7上的导板阻断孔7-2构成，其中，光发器由光源部10-1构成，光源部10-1位于导板阻断孔7-2内；开关阻断体9-1由开关阻断板9-2、阻断连板9-4、阻下贯孔9-5、阻拱弹片9-6、阻中体9-8构成，其中，阻拱弹片9-6的下端与阻断开关片9的板面连接，阻拱弹片9-6的上端向上 与阻中体9-8连接，阻下贯孔9-5贯穿阻拱弹片9-6形成阻下贯孔9-5的空间或阻下贯孔9-5贯穿阻拱弹片9-6、阻断开关片9的板面形成阻下贯孔9-5的空间；开关阻断板9-2通过阻断连板9-4与阻中体9-8连接，阻断连板9-4与阻下贯孔9-5的空间位置对准。
导光板阵列光开关模块设置有阻断开关片9，阻断开关片9由开关阻断体9-1构成，开关阻断体9-1由由开关阻断板9-2、阻断连板9-4、阻下贯孔9-5、阻拱弹片9-6、阻中体9-8构成；阻拱弹片9-6的下端与阻断开关片9的板面连接，阻拱弹片9-6的上端向上与阻中体9-8连接，有弹性的阻拱弹片9-6支撑阻中体9-8；阻下贯孔9-5贯穿阻拱弹片9-6形成阻下贯孔9-5的空间或阻下贯孔9-5贯穿阻拱弹片9-6、阻断开关片9的板面形成阻下贯孔9-5的空间；在阻下贯孔9-5的空间上方设置有开关阻断板9-2，开关阻断板9-2通过阻断连板9-4与阻中体9-8连接；当阻中体9-8被触压时，阻中体9-8克服阻拱弹片9-6产生的弹力向下移动，阻断连板9-4进入阻下贯孔9-5的空间。
光开关由阻断开关片9上的开关阻断体9-1、光发器的光发射窗口、光接器的光接收窗口、开关导光板7、开关导光板7上的导板阻断孔7-2构成，其中，光接器通过开关导光板7与导板阻断孔7-2光路导通时，光接收窗口位于导板阻断孔7-2的光接收截面7-4上(本实施例采用)，光发器位于导板阻断孔7-2内时，光发射窗口位于光发器的光射出端(本实施例采用)，也可光发器通过开关导光板7与导板阻断孔7-2光路导通时，光发射窗口位于光接收截面7-4上。
如图1、本实施例以一种101个键位的笔记本键盘(阵列开关模组使用用量最大)，详细说明本发明的导光板光开关及导光板阵列光开关模块。
如图1-图3、图2是图1的A局部剖视图，图示的一个键位的键装置由键帽1、金属支板2、阵列光开关模组3、复位体4、一对塑料支撑5构成，其中，一对塑料支撑5分别与键帽1、金属支板2连接以确保键帽1上下平行移动，有弹性的复位体4分别与键帽1、金属支板2抵触并在弹力作用下将键帽1顶至上极限位(最高位置)。
现有的笔记本键盘的(图中未表示)一个键位的键装置由键帽1、金属支板2、复位体4、一对塑料支撑5、阵列开关模组(由三层薄膜构成，其中上下两层薄膜印有银浆电路，中间为隔离层)构成，其中，阵列开关模组位于金属支板2上方并与之连接，使键帽1的字符发光的导光板模组位于金属支板2下方并与之连接，复位体4分别与键帽1、导光板模组抵触。
如图4、本发明的阵列光开关模组3位于笔记本键盘的金属支板2的下方(阵列光开关模组3也可使键帽1的字符发光)，阵列光开关模组3由上反射膜片6、开关导光板7、下反射 膜片8、阻断开关片9、FPC电路片10等构成；其中，开关导光板7采用高透明材料(如PC膜片、PMMA膜片、玻璃膜片等)，开关导光板7的上表面、下表面设置分别贴合有上反射膜片6、下反射膜片8(本实施例反射膜采用全介质反射膜，也可采用反射铝膜等)，上反射膜片6、下反射膜片8有助于减少光信号在开关导光板7内的光损(也可采用：取消反射膜片，在开关导光板7的表面电镀反射膜、磁溅射反射膜等来减少光损)，有弹性的阻断开关片9(常采用硅橡胶材料注射成型)位于开关导光板7的下方；阻断开关片9位于开关导光板7与FPC电路片10之间并位于开关导光板7的下方(本实施例采用)，FPC电路片10为0.1mm厚的柔性电路板；贯穿上反射膜片6的上反中孔6-2分别与贯穿开关导光板7的导板阻断孔7-2、贯穿下反射膜片8的下反中孔8-1位置对准并孔的直径相同；导板阻断孔7-2分别与阻断开关片9上设置的开关阻断体9-1、FPC电路片10上设置的光源部10-1位置对准，导板阻断孔7-2的开导空间7-3能容纳开关阻断体9-1，冲裁导板阻断孔7-2形成的孔截面为光接收截面7-4(光接器的光接收窗口)，光信号入射光接收截面7-4并通过光传播光路7-5与光接器(本实施例采用光敏管)光路导通，光传播光路7-5从导光网点7-1之间的间隙穿过与光接器光路导通(当光信号足够强时，也可从导光网点7-1下方产生光损穿过)；开关导光板7的上表面也可设置导光网点部(也可不设置)，导光网点部由丝印导光油墨在开关导光板7的上表面的多个圆形点形成的导光网点7-1构成，导光网点部由热压在开关导光板7的上表面的多个凹透镜形成的导光网点7-1构成，导光网点部通过贯穿反射膜片6的反射透光部6-1(本实施例采用通孔，反射膜通常采用在PET透明薄片上生成一层反光材料，在与导光网点部对应位置不生成反光材料--使之为透光透明区域)与键帽1上的字符光路导通并使字符发光。
如图4-图5、呈板状的阻断开关片9(采用弹性材料)上设置有开关阻断体9-1，开关阻断体9-1由开关阻断板9-2、阻上空间9-3、阻断连板9-4、阻下贯孔9-5、阻拱弹片9-6、阻中触部9-7、阻中体9-8构成，其中，阻拱弹片9-6的下端与阻断开关片9的板面连接，阻拱弹片9-6的上端向上与阻中体9-8连接；图中采用3个阻拱弹片9-6支撑阻中体9-8(各阻拱弹片9-6互成120度角度为最佳)；也可采用2个阻拱弹片9-6(图中未表示)支撑阻中体9-8(各阻拱弹片9-6互成180度角度为最佳)；也可采用1个阻拱弹片9-6(图中未表示)支撑阻中体9-8(阻拱弹片9-6为一个整体，环约240度为最佳，在240度处设置有约60度角度的缺口)；在各阻拱弹片9-6之间的缺口处或阻拱弹片9-6的缺口处有贯穿阻断开关片9的板面形成的阻下贯孔9-5，在阻下贯孔9-5上方设置有一端连接支撑阻中体9-8另一端连接开关阻断板9-2的两个阻断连板9-4，开关阻断板9-2是从两个阻断连板9-4的上表面向上延伸形成，由支撑 阻中体9-8、两个阻断连板9-4、开关阻断板9-2围成的空间为阻上空间9-3。
应确保：阻下贯孔9-5能容纳由两个阻断连板9-4；
应确保：阻拱弹片9-6向上与阻中体9-8连接处与两个阻断连板9-4的上表面处于同一平面或阻拱弹片9-6向上与阻中体9-8连接处高于两个阻断连板9-4的上表面；
应确保：开关阻断板9-2与阻中体9-8同圆心；
当外力向下作用在阻中触部9-7时，阻中体9-8克服阻拱弹片9-6产生的弹力向下移动，至两个阻断连板9-4完全进入阻下贯孔9-5及阻中体9-8的下端面、两个阻断连板9-4的下端面与阻断开关片9的下板面重合；当外力去除，阻中体9-8及开关阻断板9-2在阻拱弹片9-6弹力作用下复位。
如图4、图6、呈片状的柔性FPC电路片10上设置有光源部10-1，光发器由光源部10-1构成；
光源部10-1由3个侧面发光的LED 10-2构成(各LED 10-2互成120度为最佳)；
光源部10-1由2个侧面发光的LED 10-2构成(各LED 10-2互成180度为最佳)；
光源部10-1由1个侧面发光的LED 10-2构成；
LED 10-2的光射出端为LED 10-2的光发射窗口，在LED 10-2的光发射窗口反方向设有贯穿FPC电路片10板面的LED贯孔10-4，本实施例采用在FPC电路片10的向内延伸板面形成的FPC延板10-5，在FPC延板10-5的悬臂端形成的FPC悬端板10-3上封装有LED芯片--采用COB封装形成LED 10-2，最后将FPC悬端板10-3弯折90度，使封装在FPC悬端板10-3上的LED 10-2成为侧面发光的光源；本实施例的侧面发光的LED 10-2由弯折90度的FPC悬端板10-3上采用COB封装LED芯片构成。
如图7-图8、将阻断开关片9的下表面与FPC电路片10的上表面粘接在一起；
从府视图看(从上住下看)：
应确保：FPC电路片10上的LED 10-2及悬端板10-3位于阻断开关片9的阻上空间9-3内；应确保：阻断开关片9上的阻中体9-8位于FPC电路片10上的LED贯孔10-4内。
如图7、LED 10-2发射的光信号从开关阻断板9-2的下表面与阻断开关片9的上表面之间的空间射出。
如图8、当阻中触部9-7被触压时，阻拱弹片9-6产生弹性变形，阻中体9-8及开关阻断板9-2向下移动，开关阻断板9-2阻断LED 10-2发射的光信号。
图9是图1的A局部剖视图的主视图。
如图10、图12、键帽1处于上极限位时，阻断开关片9的阻中触部9-7、阻中体9-8的上部位于贯穿金属支板2中部附近板面的支板中孔2-2内，阻断开关片9的开关阻断板9-2位于贯穿金属支板2板面的支板外孔2-1，支板外孔2-1位于支板中孔2-2外侧；侧面发光的LED 10-2发射的光信号通过开关导光板7上的光接收截面7-4(光接收窗口)入射开关导光板7。
如图10、图11、为避免环境对开关导光板7的影响，可在FPC电路片10的下表面粘贴一张薄膜片的密封膜片11(以采用0.05mm的金属膜为最佳--有利于键盘散热同时起密封作用)，同时，将复位体4(常采用硅橡胶材料注射成型)的底面与金属支板2上表面密封连接，阵列光开关模组3的上表面与金属支板2下表面密封连接，从而将复位体4下的空间、LED贯孔10-4的空间、开导空间7-3等密封，避免环境对开关导光板7的光接收截面7-4污染而产生光损，为避免对按下复位体4时产生影响(如按下复位体4困难)，在阻断开关片9的板面上设置有排气槽(图中未表示)。
本发明的开关阻断体9-1的最大优点是:最大限度减薄了阵列光开关模组3的厚度(如图10厚度仅0.52mm)；本发明的开导空间7-3等密封后的最大优点是:杜绝了尘埃导致开关导光板7的光接收截面7-4(光接收窗口)的光入射效率下降(特别是光开关时间使用长了)。
如图10-图13、当键帽1被按下时，复位体4的内上表面与阻中触部9-7接触并推动阻中触部9-7连同开关阻断板9-2向下移动，阻拱弹片9-6产生弹性变形，开关阻断板9-2从支板外孔2-1向下进入阻下贯孔9-5，开关阻断板9-2阻断LED 10-2发射的光信号入射开关导光板7。
如图14-图15、阵列光开关模组3的阻断开关片9处于上极限位、下极限位时，开关阻断板9-2与LED 10-2的位置关系；上反中孔6-2、导板阻断孔7-2、下反中孔8-1位置对准且孔的直径相同；导光网点7-1发出的光从上反射膜片6的透明区域--反射透光部6-1射出。
如图16-图17、本实施例采用以一种101个键位的笔记本键盘(阵列开关模组使用用量最大)，详细说明本发明的导光板光开关及导光板阵列光开关模块；导光板阵列光开关模块纵横排列有101个光开关，其中，第一行有20个光开关，第二行有18个光开关，第三行有18个光开关，第四行有16个光开关，第五行有16个光开关，第六行有13个光开关；
阵列光开关模组3由上反射膜片6、开关导光板7、下反射膜片8、阻断开关片9、FPC电路片10等构成；其中，开关导光板7采用高透明材料；通过贯穿开关导光板7的板面的导板横孔7-7、导板竖孔7-8将开关导光板7分隔为6个光区，6个光区分别为：第一光区7a、第二光 区7b、第三光区7c、第四光区7d、第五光区7e、第六光区7f，本实施例采用两条导板横孔7-7、三段竖导板竖孔7-8将六个彼此分离的光区，由两条导板横孔7-7、三段竖导板竖孔7-8构成导板排气槽，阵列光开关模组3上设置的排气槽由导板排气槽、阻隔排气槽构成；
第一光区7a采用19个光源部10-1的光发射窗口与19个光开关、一个导板光接部7-6光路导通(本实施例的光发射窗口位于光源部10-1的光发射端)，导板光接部7-6与光敏管光路导通；导板光接部7-6可以由丝印导光油墨在开关导光板7的上表面的多个圆形点形成的网点构成，导板光接部7-6也可由热压在开关导光板7的上表面的多个凹透镜形成的网点构成，导板光接部7-6也可由贯穿板面的贯穿孔构成；
第二光区10-6采用18个光源部10-1的光发射窗口与18个光开关、导板光接部7-6、一个光敏管的光路导通，第三光区7c采用15个光源部10-1的光发射窗口与15个光开关、导板光接部7-6、一个光敏管的光路导通，第四光区7d采用14个光源部10-1的光发射窗口与14个光开关、导板光接部7-6、一个光敏管的光路导通，第五光区7e采用16个光源部10-1的光发射窗口与16个光开关、导板光接部7-6、一个光敏管的光路导通，第六光区7f采用19个光源部10-1的光发射窗口与19个光开关、导板光接部7-6、一个光敏管的光路导通；
将第三光区7c(光源部10-1数量最少为13个)的一个光源部10-1与其它每一个光区的一个光源部10-1电气连接(串联或并联及其组合)形成一个光发器连组，重复上述过程，形成13组有六个光源部10-1电气连接的光发器连组；
将第四光区7d(光源部10-1数量为16个)剩余的两个未电气连接的光源部10-1与其它每一个光区的一个光源部10-1电气连接，形成2组以五个光源部10-1电气连接的光发器连组；
将第二光区7b及第五光区7e(光源部10-1数量均为17个)剩余的一个光源部10-1与与其它每一个光区的一个光源部10-1电气连接，形成1组以四个光源部10-1电气连接的光发器连组；
将第一光区7a及第六光区7f(光源部10-1数量均为19个)剩余的一个光源部10-1与其它每一个光区的一个光源部10-1电气连接，形成2组以三个光源部10-1电气连接的光发器连组。
如图16-图20、CPU有通断接口、有检测接口；导光板分为多个光区，多个光区内的光信号被彼此隔离；
在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通；光发器与通断接口连接，光接器与检测接口连接；
使用时，CPU不断检测多个检测接口的信号；当某个光区的光开关被按下时，CPU通过检测检测接口，从而判断某个光区的某光开关被按下。
导光板分为多个光区，多个光区内的光信号被彼此隔离；在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通；光发器与CPU输出口连接，光接器与CPU输入口连接，每一个光区内的光发器发出均能被CPU识别的光信号；
使用时，当某个光区的光开关被按下时，CPU通过检测CPU输入口，从而判断某个光区的某光开关被按下。
导光板由开关导光板(7)构成；光发器与CPU输出口连接采用：由其中一个光区内的一个光发器与另一个光区内的一个光发器连接形成光发器连组，.....重复上述连接过程，从而形成多个光发器连组，多个光发器连组与多个CPU输出口连接，从而确保：每时每刻或CPU检测CPU输入口时，每个光区内的多个光发器最多只有一个光发器发出光信号。
将开关导光板7分为至少两个光区，两个光区分别为第一光区7a、第二光区7b，将第一光区7a内的光信号与第二光区7b内的光信号隔离；将第一光区7a内的多个光发器的光发射窗口与多个光开关、第一光接器的光路导通，将第二光区7b内的多个光发器的光发射窗口与多个光开关、第二光接器的光路导通；将第一光区7a的一个光发器与第二光区7b的一个光发器连接，形成连接光发器组，将第一连接光发器组、第二连接光发器组、第三连接光发器组、.....第n连接光发器组分别与第一CPU输出口、第二CPU输出口、第三CPU输出口、.....第nCPU输出口对应连接；将第一光接器、第二光接器分别与CPU的第一CPU输入口连接、CPU的第二CPU输入口连接；使用时，CPU不断检测第一CPU输入口的信号、第二CPU输入口的信号；当第一光区7a的光开关被按下时，CPU通过检测第一CPU输入口发现第一光区7a光信号的变化，CPU拫据光信号的变化而判断第一光区7a的某光开关被按下；当第二光区7b的光开关被按下时，CPU通过检测第二CPU输入口发现第二光区7b光信号的变化，CPU拫据光信号的变化而判断第二光区7b的某光开关被按下。
导光板阵列光开关模块还包括CPU，其中，CPU有多个CPU输出接口、CPU输入接口，连接光发器组通过CPU输出口与CPU输出接口连接，光接器通过CPU输入口与CPU输入接口连接；CPU输出口、CPU输入口与CPU输出接口、CPU输入接口位于同一电路片上或CPU输出口、CPU输入口与CPU输出接口、CPU输入接口分别位于不同的电路片上。
CPU不断循环扫描检测各CPU输入口或不断同时检测各CPU输入口，当CPU检测到某个输出口的信号变化时，CPU根据与该CPU输出口连接的光发器连组及该光发器连组连接的光发器所在的光区判断某光开关被触发。
阵列光开关模块工作时，CPU连通一个CPU输出口，与该CPU输出口连接的光发器 连组在每个光区最多只有一个光发器发射光信号，各光区的一组光接器接收到光信号或一个光接器接收到光信号，与该光发器连组连接的各CPU输入口有信号输入，CPU判断各光分区是否有光开关被触发，CPU关闭该CPU输出口；
CPU再连通另一个CPU输出口，与该CPU输出口连接的光发器连组在每个光区最多只有一个光发器发射光信号，各光区的一组光接器接收到光信号或一个光接器接收到光信号，与该光发器连组连接的各CPU输入口有信号输入，CPU判断各光分区是否有光开关被触发，CPU关闭该CPU输出口；
......
不断循环上述过程；
当某光开关被触发时，该光区的光路被阻断，使该光区的光接器接收不到光信号，与该光接器连接的CPU输入口无信号输入，CPU拫据连通的光发器连组及光区与光接器的对应关系判断该光开关的位置。
CPU的各CPU输出口均发射不同的特征信号，光发器连组所连接的光发器在同一光区的均发射不同的特征信号。
如图19-图20、阻断开关片9上的开关阻断体9-1纵横排列；FPC电路片10上的光源部10-1纵横排列；关阻断体9-1上设置的阻中体9-8位于光源部10-1的LED贯孔10-4内。
参见图21、因A4纸太小，电路图中仅画岀59个开关，CPU共需10个I/O口(CPU需10个输入接口B，6个输入接口C，开关导光板7分隔为6个光区，每个光区需1个光敏管G)；本实施例以101个光开关的导光板阵列光开关模块的电路为例，101个光开关使用的CPU共需20个输出接口，输出接口分别为B1、B2....B20(其中B11、B12....B20及与之电气连接的电路在图中未表示)，六个光敏管G的输入接口分别与C1、C2....C6连接；
一个光区内的一个光发器与另一光区内的一个光发器连接，形成各光区的最多个光发器相互连接的一个LED连组。
6个光区中：
每个光区LED序号为1的LED连组为1LED连组(光发器连组由LED连组构成)，1LED连组由LED11、LED21、LED31、LED41、LED51、LED61电气连接构成(其中LEDnm中的n表示LED位于n光区，m表示LED所在光区的序号)(图中电气连接采用并联连接，实际应用中以串联或并联及其组合均可)，1LED连组与CPU的B1连接；
2LED连组由LED12、LED22、LED32、LED42、LED52、LED62电气连接构成，2LED连组 与CPU的B2连接；
.......
20LED连组由LED110、LED210、LED310、LED410、LED510、LED610电气连接构成，20LED连组与CPU的B20连接；
图中G1、G2、G3...为光敏管，G1、G2、G3...分别与第一输入接口C1C1、第二输入接口C2、第三输入接口C3...对应连接。
101个光开关有101个LED，如果不分光区并不采用LED连组电路结构，CPU共需101个输出接口；本发明采用分光区并采用LED连组电路结构，101个LED使用的CPU共需20个输出接口，大幅减少了输出接口的数量，并幅减化了电子电路，同时，CPU共需20个输出接口使CPU扫描检测速度高5倍以上。
由于导光板阵列光开关模块上设置的光开关的数量不同，开关导光板7上设置的光区数量也不同，有可能出现一组光发器连组仅有一个光源部10-1的情况；
将第一光区7a的第一接收器G1、第二光区7b的第二接收器G2…..第六光区7f的第六接收器G6，分别与第一输入接口C1连接、第二输入接口C2连接…..第六输入接口C6对应连接。
使用时，CPU使1LED开通，此时1LED在每个光区最多只有一个光源部10-1发射光信号，同时，CPU不断检测第一输入接口C1的信号、第二输入接口C2的信号......第六输入接口C6的信号，判断光信是否有变化----确定哪个键帽被按下；
CPU使2LED开通，此时1LED在每个光区最多只有一个光源部10-1发射光信号，同时，CPU不断检测第一输入接口C1的信号、第二输入接口C2的信号......第六输入接口C6的信号，判断光信是否有变化----确定哪个键帽被按下；
......
CPU不断重复上述检测。
CPU的第一输出接口发射一个光信号，当第一光区7a的光开关被按下时，第一输入接口C1检测到第一光区7a光信号的变化，CPU拫据光信号的变化而判断第一光区7a的某光开关被按下；
CPU的第二输出接口发射一个光信号，当第二光区7b的光开关被按下时，第二输入接口C2检测到第二光区7b光信号的变化，CPU拫据光信号的变化而判断第二光区7b的某光开关被按下；
......
CPU不断循环扫描检测。
参见图22、为减少CPU的I/O口并简化电路，在图24的电路图基础上CPU增加了CPU特征输出接口----CPU特征输出接口A1、CPU特征输出接口A2，
101个光开关使用的CPU共需10个输出接口，输出接口分别为B1、B2、B3、B4.......B10(其中B6、B7.......B10及与之电气连接的电路在图中未表示，输入接口:C1、C2.......C6，CPU特征输出接口：A1、A2，CPU共需17个I/O口；
1LED连组由LED11、LED21、LED31、LED41、LED51、LED61电气连接构成；
2LED连组由LED12、LED22、LED32、LED42、LED52、LED62电气连接构成；
上述2个LED连接组连接在一起后形成LED特征组，LED特征组与B1连接；
3LED连组由LED13、LED23、LED33、LED43、LED53、LED63电气连接构成；
4LED连组由LED14、LED24、LED34、LED44、LED54、LED64电气连接构成；
上述2个LED连接组连接在一起后形成LED特征组，LED特征组与B2连接；
.......
上述2个LED连接组连接在一起后形成LED特征组，LED特征组与B5连接；
CPU有2个发射不同特征信号的CPU特征输出接口：CPU特征输出接口A1、CPU特征输出接口A2，
CPU特征输出接口A1连接多组LED连组，CPU特征输出接口A2连接多组LED连组；
由2组LED连组连接构成一组LED特征组，其中，构成LED特征组的每一LED连组均发射不同特征信号，
由第一LED特征组与Ⅰ CPU输出接口B1连接，由输出接口B1控制第一LED特征组的通断，第一LED特征组由二LED连组连接构成，LED连组均发射不同特征信号，
由第二LED特征组与Ⅱ CPU输出接口B2连接，由输出接口B2控制第二LED特征组的通断，第二LED特征组由二LED连组连接构成，LED连组均发射不同特征信号，
由第三LED特征组与ⅢCPU输出接口B3连接，由输出接口B3控制第三LED特征组的通断，第三LED特征组由二LED连组连接构成，LED连组均发射不同特征信号，
.......。
参见图23、为进一步减少CPU的I/O口并简化电路，在图22的电路图基础上CPU增加了一个CPU特征输出接口，CPU特征输出接口：CPU特征输出接口A1、CPU特征输出接口A2、CPU特征输出接口A3构成，(本实施例仅以2个至3个特征信号为例，特征信号亦 可为4个或5个)，101个光开关使用的CPU共需8个输出接口，输出接口为B1、B2.......B8，输入接口:C1、C2.......C6；101个光开关使用的CPU共需17个I/O口5个输出接口，进一步大幅减少了输出接口的数量(由图24方案的CPU需20个输出接口减少为10个输出接口)，并进一步幅减化了电子电路，同时，CPU共需10个输出接口使CPU扫描检测速度高10倍以上。
CPU有3个发射不同特征信号的CPU特征输出接口：CPU特征输出接口A1、CPU特征输出接口A2、CPU特征输出接口A3，
CPU特征输出接口A1连接多组LED连组，CPU特征输出接口A2连接多组LED连组，CPU特征输出接口A3连接多组LED连组；
由3组LED连组连接构成一组LED特征组，其中，构成LED特征组的每一LED连组均发射不同特征信号，
由第一LED特征组与Ⅰ CPU输出接口B1连接，由输出接口B1控制第一LED特征组的通断，第一LED特征组由三LED连组连接构成，每一LED连组均发射不同特征信号，
由第二LED特征组与Ⅱ CPU输出接口B2连接，由输出接口B2控制第二LED特征组的通断，第二LED特征组由三LED连组连接构成，每一LED连组均发射不同特征信号，
由第三LED特征组与ⅢCPU输出接口B3连接，由输出接口B3控制第三LED特征组的通断，第三LED特征组由三LED连组连接构成，每一LED连组均发射不同特征信号，.......。
如图16-图18及图22-图23、将导光板分为多个光区，各光区内传播的光信号彼此被隔离；每个光区内的多个光发器与一组光接器或一个光接器的光路导通，每个光区内的光接器分别与CPU的信号输入接口连接；将一个光区内的一个光发器与另一光区内的一个光发器连接，形成各光区的最多一个光发器相互连接的一个光发器连接组.......重复上述连接过程，从而形成多个光发器连接组；
CPU有输出多个不同特征信号的CPU特征输出接口，每个CPU特征输出接口连接多组光发器连接组，由多组光发器连接组连接构成一个光发器特征组，构成光发器特征组的每一组光发器连接组的光发器均发射不同特征信号；多个光发器特征组分别与CPU的多个光CPU输入接口连接，每一个光发器特征组的通断均由CPU的一个光CPU输入接口控制；使用时，CPU不断检测各信号输入接口的信号。
将导光板分为n个光区，n个光区分别为第一光区7a、第二光区7b、第三光区7c.......第n光区，将各光区内的光信号彼此被隔离；
将第一光区7a内的多个光发器与第一光接器G1光路导通，
将第二光区7b内的多个光发器与第二光接器G2光路导通，
将第三光区7c内的多个光发器与第三光接器G3光路导通，.......；
将第一光区7a的一个光发器、第二光区7b的一个光发器、第三光区7c的一个光发器.......电气连接，形成一个光发器连接组，依此重复连接，形成第一光发器连接组、第二光发器连接组、第三光发器连接组.......；
CPU有输出多个不同特征信号的CPU特征输出接口，每个CPU特征输出接口连接多组光发器连接组，由多组光发器连接组连接构成一个LED特征连组，LED特征连组在同一光区的光发器均发射不同特征信号；
多个LED特征连组分别与CPU的多个CPU输出接口连接，每一个LED特征连组的通断均由CPU的一个CPU输出接口控制，CPU输出接口由Ⅰ CPU输出接口B1、Ⅱ CPU输出接口B2、ⅢCPU输出接口B3.......构成，
由第一LED特征连组与CPU的Ⅰ CPU输出接口B1连接，由Ⅰ CPU输出接口B1控制第一LED特征连组的通断，
由第二LED特征连组与CPU的Ⅱ CPU输出接口B2连接，由Ⅱ CPU输出接口B2控制第二LED特征连组的通断，
由第三LED特征连组与CPU的ⅢCPU输出接口B3连接，由ⅢCPU输出接口B3控制第三LED特征连组的通断.......；
将第一光区7a的第一光接器G1、第二光区7b的第二光接器G2、第三光区7c的第三光接器G3.......，分别与CPU的第一信号输入口C1连接、CPU的第二信号输入口C2连接、第三信号输入口C3、CPU的第三信号输入口C3.......对应连接；
使用时，CPU不断检测第一信号输入口C1的信号、第二信号输入口C2的信号、第三信号输入口C3的信号......。
将导光板分为多个光区，并将每个光区的一个光源部10-1电气连接的最大优点是:
1、大幅降低了阵列光开关的功率：本发明扫描检测各光开关的功率由每个光发器连组的功率决定，CPU检测时(以导光板分为6个光区为例)，本发明一组光发器连组最多有6个光源部10-1(按每个LED功率0.06W，共计0.36W)被点亮，与同时点亮101个光源部10-1的功率(6.06W)比较，功率大幅降低了6/101倍；现有笔记本电脑功率一般为55W－－60W，普遍存在发热导致其性能下降的问题，如果仅光电键盘就增加约10％的功率，是很难推广的；
2、大幅减少了CPU的I/O口的数量、大幅减化了电子电路
101键位的键盘共有101个光开关---有101个光源部10-1及101个光敏管(电路复杂，造成需多层PCB电路板才能完成电路布线)；本发明采用将导光板分为6个光区，并采用光发器连接组方案，本实施例101个光开关仅需20个CPU输出接口及6个CPU输入接口(参见图21、CPU的I/O口共需26个)；
CPU增加了2个CPU特征输出接口，本实施例101个光开关仅需10个CPU输出接口及6个CPU输入接口(参见图21、CPU的I/O口共需18个)。
3.所有键位均无键位冲突：
CPU的各输出接口均发出不同的特征信号；同一光区内有两个以上的键同吋按下时，CPU将不能区别同一光区内有两个以上的键同吋按下(现有键盘的薄膜阵列开关电路技术，采增加CPU输入接口来解决此问题，如常用Ctrl+A，将Ctrl单独与CPU一个输入接口连接)，参见图21、CPU的各输出接口B均发出不同的特征信号(类似电视遥控器，每个键按下，电视遥控器均发出不同的特征信号)，CPU的20个输出接口(101个光开关方案)向20组光源部10-1连接组发出不同的特征信号，CPU拫据接收不同的特征信号区别同一光区内的键位，本发明可做到全键盘无键位冲突，任意同时按下任何n个键，CPU均能识别，特别适合玩游戏人群使用。
采用光开关的最大优点是:
1.大幅降低了阵列开关的成本
在导光模块中増加光开关，增加101个光源部10-1，光源部10-1的成本圴0.03元/个，而取消采用印刷银浆的薄膜阵列开关电路，薄膜阵列开关电路约8元/个至12元/个。
2.大幅提高了开关的使用寿命
现有的薄膜阵列开关电路被安装在金属支板2之上，薄膜阵列开关电路开孔与金属支板2开孔一样多，薄膜阵列开关电路防水工艺复杂且可靠性差，本发明的导光模块被安装在金属支板2之下，工艺开孔较少，防水工艺简单，防水性能突出。
如图24---图26、上反射膜片6、下反射膜片8分别贴覆于开关导光板7上表面、开关导光板7下表面，下反射膜片8在与开关导光板7的导板横孔7-7、导板竖孔7-8位置对准的位置开有贯穿孔，该贯穿孔与导板横孔7-7、导板竖孔7-8大小相同，在该贯穿孔设置有延伸边，下反射膜片8的外形尺寸与上反射膜片6的外形尺寸相同，在下反射膜片8的外形四周有延伸边，将下反射膜片8的上平面贴在开关导光板7下表面后，再将延伸边与上反射膜片6 的下表面粘接后，形成下横反延边8-3、下竖反延边8-2，其中，由下横反延边8-3、下竖反延边8-2构成延反射膜，下横反延边8-3与上反射膜片6的下表面粘接，下竖反延边8-2包覆与开关导光板7的上下表面垂直的截面；包覆与开关导光板7的截面是为了减少光损(光传播至开关导光板7的截面后，被下竖反延边8-2反射回开关导光板7内)，同时，下竖反延边8-2起到隔离各光区的作用。
如图27---图28、阵列光开关模组3设置有排气槽，排气槽由设置在阻断开关片9上的阻断排气槽、设置在开关导光板7上的开关板排气槽构成；其中阻断排气槽由阻横排气槽9-9、阻竖排气槽9-10构成，其中，横向排列的每一行阻横排气槽9-9与每一行的所有阻断开关片9的阻下贯孔9-5连通，阻竖排气槽9-10与阻断开关片9的阻下贯孔9-5连通；
开关板排气槽由导板横孔7-7、导板竖孔7-8构成。
如图29---图31、开关导光板7、阻断开关片9被叠放在一起时，阻横排气槽9-9与导板竖孔7-8的空间连通，阻竖排气槽9-10与导板横孔7-7的空间连通；在开关导光板7上设置有贯穿开关导光板7板面的排气缺口9-11，应确保：排气缺口9-11与开关板排气槽位置对准并空间连通(本实施例采用排气缺口9-11与阻竖排气槽9-10的下部位置对准并空间连通)，在排气缺口9-11内设置有空气过滤材料构成的空气滤材12，排气槽通过空气滤材12与大气连通；阵列光开关模组3设置有排气槽，解决了光开关全密封后，复位体4按下困难的问题。
实施例2、如图32-图44、导光板由开关导光板7构成，开关导光板7上设置有贯穿其板面的导光板贯穿孔，导光板贯穿孔由LED开关孔7-9、导板阻断孔7-2、左前光路孔7-10及右前光路孔7-11构成，其中，光发器为侧面发光的光发器，光发器位于LED开关孔7-9内，左前光路孔7-10、右前光路孔7-11贯穿开关导光板7的板面，在左前光路孔7-10、右前光路孔7-11之间形成前光路板7-12；前光路板7-12的一端位于LED开关孔7-9的侧壁上，并与光发器光路导通，前光路板7-12的另一端位于导板阻断孔7-2的侧壁上，前光路板7-12是传播光路的一部份。
开关导光板7的上下表面均贴有一张反射膜，其中一张反射膜片设置有贯穿其板面的右前反射孔6-5、左前反射孔6-4，右前反射孔6-5、左前反射孔6-4分别与右前光路孔7-11、左前光路孔7-10位置对应；该反射膜片在右前反射孔6-5、左前反射孔6-4的靠近前光路板7-12的边分别有向外延伸的右前延边膜6-8、左前延边膜6-7，由右前延边膜6-8、左前延边膜6-7构成该反射膜的延反射膜，该反射膜的延反射膜与另一张反射膜片粘接连接；
前光路板7-12的左右两个截面分别被左前延边膜6-7包覆、右前延边膜6-8包覆，前光路板 7-12的左右两个截面由成型右前反射孔6-5、左前反射孔6-4形成，光开关模块还包括光阻漏部，光阻漏部阻挡光信号从光开关漏出。
如图32、本实施例以一种101个键位的笔记本键盘(阵列开关模组使用用量最大)，详细说明本发明的导光板光开关及导光板阵列光开关模块。
如图33-图34、图33是图31的G局部剖视图，图示的一个键位的键装置由键帽1、金属支板2、阵列光开关模组3、复位体4(图中未表示)、一对塑料支撑5(图中未表示)构成。
如图35、本发明的阵列光开关模组3位于笔记本键盘的金属支板2的下方，阵列光开关模组3由上反射膜片6、开关导光板7、下反射膜片8、阻断开关片9、FPC电路片10、发光导光板13等构成；其中，开关导光板7的上表面、下表面设置分别贴合有上反射膜片6、下反射膜片8；本实施例采用：开关导光板7位于阻断开关片9、FPC电路片10之间并位于FPC电路片10上方(阻断开关片9位于开关导光板7的上方)，发光导光板13位于阻断开关片9上方。
如图35-图36、开关导光板7上设置有贯穿其板面的LED开关孔7-9、导板阻断孔7-2；发光导光板13上设置有贯穿其板面的LED发光孔13-2、发光板孔13-3，发光导光板13采用高透明材料(如PC膜片、PMMA膜片、玻璃膜片等)，发光导光板13的上下表面也分别贴合有上下反射膜(图中未表示)，发光导光板13的上表面设置导光网点部，导光网点部由发导光网点13-1构成，发导光网点13-1与键帽1上的字符光路导通并使字符发光；阻断开关片9上设置有贯穿其板面的LED阻孔9-13，开关阻隔体9-14；柔性的FPC电路片10上设置有侧发光的侧LED10-6；
应确保：LED发光孔13-2、LED阻孔9-13、LED开关孔7-9、侧LED10-6位置对准，其中，LED发光孔13-2、LED阻孔9-13、LED开关孔7-9均能容纳侧LED10-6；
应确保：开关阻隔体9-14与导板阻断孔7-2位置对准，发光板孔13-3能容纳开关阻隔体9-14；
应确保：LED开关孔7-9能容纳LED阻漏壁9-12；
应确保：LED开关孔7-9与导板阻断孔7-2光路导通。
如图37-图38、开关导光板7设置有贯穿其板面的导光板贯穿孔，导光板贯穿孔由LED开关孔7-9、导板阻断孔7-2、左前光路孔7-10及右前光路孔7-11构成，其中，光发器为侧面发光的侧LED10-6，侧LED10-6位于LED开关孔7-9内，左前光路孔7-10、右前光路孔7-11贯穿开关导光板7的板面，在左前光路孔7-10、右前光路孔7-11之间形成前光路板7-12；前光路板7-12的一端位于LED开关孔7-9的侧壁上，并与光发器光路导通，前光路板7-12的另 一端位于导板阻断孔7-2的侧壁上，前光路板7-12是传播光路的一部份；侧LED10-6的光发射窗口位于前光路板7-12的一端，该端位于导板阻断孔7-2的侧壁上。
如图39-图40、阻断开关片9上设置有贯穿其板面的LED阻孔9-13，在LED阻孔9-13上设置有阻光阻漏部，阻光阻漏部由LED阻漏壁9-12、长条阻漏壁9-14构成或阻光阻漏部由LED阻漏壁9-12构成，LED阻漏壁9-12位于LED阻孔9-13的孔边缘，LED阻漏壁9-12呈环状的并凸出阻断开关片9的表面，在阻断开关片9的板面的反面设置有长条阻漏壁9-14，阻断开关片9上还设置有呈拱形的有弹性的开关阻隔体9-14(在开关阻隔体9-14的顶部设置有阻中触部9-7，在LED阻孔9-13与开关阻隔体9-14之间的LED阻漏壁9-12上开设有透光缺口15。
如图41-图44、金属支板2上设置支板中孔2-2，支板中孔2-2与复位体4位置对应，阻中触部9-7穿过支板中孔2-2其上端面位于金属支板2上表面上方。
侧发光LED位于导光板10-1的LED开关孔7-9内，LED开关孔7-9与阻断贯穿孔9-2、光接器光路导通，LED的光发射窗口与光接器的光接收窗口位置对应并光路导通；阻断贯穿孔9-2与光接器光路导通。光隔档片9-16
如图45-图51、开关导光板7被分为多个光区，多个光区内的光信号被彼此隔离；在每一个光区内，多个光发器分别与一组光接器的光路导通或分别与一个光接器的光路导通。
如图46、导光板由发光导光板13及开关导光板7构成，发光导光板13位于开关导光板7的上方，其中，发光导光板13的上表面设置有发导光网点13-1，光发器发射的光信号与发导光网点13-1光路导通，发光导光板13设置有贯穿其板面的发光板孔13-3；开关导光板7上的阻断空间9-1与发光导光板13上的发光板孔13-3位置对准；发光导光板13上设置的LED发光孔13-2与开关导光板7上设置的LED开关孔7-9位置对准，LED开关孔7-9、LED发光孔13-2均能容纳光发器。
如图46-图51、开关导光板7的上下表面均设置有反射光信号的反射膜，反射膜设置有延反射膜；开关导光板7设置有贯穿其板面的开导反射孔7-13，冲裁成型开导反射孔7-13形成的截面为导板端截面7-14，延反射膜包覆导板端截面7-14形成光反射面；
前导光路7-15与导板端截面7-14的夹角与反射光路7-16与导板端截面7-14的夹角相等，使光发器经光开关发射的光信号，沿前导光路7-15经导板端截面7-14、延反射膜，延反射膜反射光信号，反射出的光信号沿反射光路7-16与光接器的导通。
开关导光板7的上下表面均贴有反射膜，位于开关导光板7的上表面的反射膜设置有 延反射膜或位于开关导光板7的下表面的反射膜设置有延反射膜，延反射膜或延反射膜与导板端截面7-14位置对应，延反射膜被弯折包覆导板端截面7-14与下反射膜连接或延反射膜被弯折包覆导板端截面7-14与上反射膜连接；延反射膜由竖反延边6-9、横反延边6-10构成。
其余与实施例1同。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在发明的保护范围之内。

Claims (20)

  1. 一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、光开关、CPU，导光板，光发器发射的光信号通过光开关与光接器光路导通，当光开关被触发时，光发器与光接器的传播光路产生通断，其中，CPU有通断接口、有检测接口；
    其特征是：所述导光板分为多个光区，多个所述光区内的光信号被彼此隔离；
    在每一个所述光区内，多个所述光发器分别与一组所述光接器的光路导通或分别与一个所述光接器的光路导通；
    所述光发器与所述通断接口连接，所述光接器与所述检测接口连接；
    使用时，所述CPU不断检测多个所述检测接口的信号；
    当某个所述光区的光开关被按下时，所述CPU通过检测所述检测接口，从而判断某个所述光区的某所述光开关被按下。
  2. 一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通，当光开关被触发时，光发器与光接器的传播光路产生通断；
    其特征是：所述导光板分为多个光区，多个所述光区内的光信号被彼此隔离；
    在每一个所述光区内，多个所述光发器分别与一组所述光接器的光路导通或分别与一个所述光接器的光路导通；
    所述光发器与CPU输出口连接，所述光接器与CPU输入口连接，每一个所述光区内的所述光发器发出均能被CPU识别的光信号；
    使用时，所述CPU通过检测所述CPU输入口，当某个所述光区的某个所述光开关被按下时，从而判断某个所述光区的某个所述光开关被按下。
  3. 如权利要求1或2所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述导光板由开关导光板(7)构成；所述光发器与所述CPU输出口连接采用：由其中一个所述光区内的一个所述光发器与另一个所述光区内的一个所述光发器连接形成光发器连组，.....重复上述连接过程，从而形成多个所述光发器连组，多个所述光发器连组分别与多个所述CPU输出口对应连接。
  4. 一种导光板光开关及导光板阵列光开关模块包括光发器、光接器、电路片、光开关，开关导光板，光发器发射的光信号通过光开关与光接器光路导通；当光开关被触发时，光发器与光接器的光路产生通断；
    其特征是：将所述开关导光板(7)分为至少两个光区，两个光区分别为第一光区(7a)、第二 光区(7b)，将所述第一光区(7a)内的光信号与所述第二光区(7b)内的光信号隔离；
    将所述第一光区(7a)内的多个光发器的光发射窗口与多个光开关、第一光接器的光路导通，将所述第二光区(7b)内的多个光发器的光发射窗口与多个光开关、第二光接器的光路导通；
    将所述第一光区(7a)的一个光发器与所述第二光区(7b)的一个光发器连接，形成连接光发器组，将第一连接光发器组、第二连接光发器组、第三连接光发器组、.....第n连接光发器组分别与第一CPU输出口、第二CPU输出口、第三CPU输出口、.....第nCPU输出口对应连接；
    将所述第一光接器、所述第二光接器分别与CPU的第一CPU输入口连接、CPU的第二CPU输入口连接；
    使用时，CPU不断检测第一CPU输入口的信号、第二CPU输入口的信号；
    当所述第一光区(7a)的光开关被按下时，所述CPU通过检测第一CPU输入口发现所述第一光区(7a)光信号的变化，CPU拫据光信号的变化而判断第一光区(7a)的某光开关被按下；
    当所述第二光区(7b)的光开关被按下时，所述CPU通过检测第二CPU输入口发现所述第二光区(7b)光信号的变化，CPU拫据光信号的变化而判断第二光区(7b)的某光开关被按下。
  5. 如权利要求3或4所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述导光板阵列光开关模块还包括CPU，其中，所述CPU有多个CPU输出接口、所述CPU输入接口，所述连接光发器组通过所述CPU输出口与所述CPU输出接口连接，所述光接器通过所述CPU输入口与所述CPU输入接口连接；
    所述CPU输出口、所述CPU输入口与所述CPU输出接口、所述CPU输入接口位于同一所述电路片上或所述CPU输出口、所述CPU输入口与所述CPU输出接口、所述CPU输入接口分别位于不同的所述电路片上。
  6. 如权利要求5所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述CPU不断循环扫描检测各所述CPU输入口或不断同时检测各所述CPU输入口，当所述CPU检测到某个所述输出口的信号变化时，所述CPU根据与该所述CPU输出口连接的光发器连组及该光发器连组连接的所述光发器所在的所述光区判断某所述光开关被触发。
  7. 如权利要求5所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述阵列光开关模块工作时，所述CPU连通一个所述CPU输出口，与该所述CPU输出口连接的所述光发器连组在每个所述光区最多只有一个所述光发器发射光信号，各所述光区的一组所述光接器接收到光信号或一个所述光接器接收到光信号，与该所述光发器连组连接的各所述CPU输入口有信号输入，所述CPU判断各所述光分区是否有所述光开关被触发，所述CPU关闭该所述 CPU输出口；
    所述CPU再连通另一个所述CPU输出口，与该所述CPU输出口连接的所述光发器连组在每个所述光区最多只有一个所述光发器发射光信号，各所述光区的一组所述光接器接收到光信号或一个所述光接器接收到光信号，与该所述光发器连组连接的各所述CPU输入口有信号输入，所述CPU判断各所述光分区是否有所述光开关被触发，所述CPU关闭该所述CPU输出口；......
    不断循环上述过程；
    当某所述光开关被触发时，该所述光区的光路被阻断，使该所述光区的所述光接器接收不到光信号，与该所述光接器连接的所述CPU输入口无信号输入，所述CPU拫据连通的光发器连组及所述光区与光接器的对应关系判断该所述光开关的位置。
  8. 如权利要求3或4或5或6或7所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述CPU的各CPU输出口均发射不同的特征信号，所述光发器连组所连接的所述光发器在同一所述光区的均发射不同的特征信号。
  9. 一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通；当光开关被触发时，光发器与光接器的光路产生通断；
    其特征是：将所述导光板分为多个光区，各光区内传播的光信号彼此被隔离；
    每个光区内的多个所述光发器与一组所述光接器或一个所述光接器的光路导通，每个光区内的所述光接器分别与CPU的信号输入接口连接；
    将一个光区内的一个光发器与另一光区内的一个光发器连接，形成各光区的最多一个光发器相互连接的一个光发器连接组.......重复上述连接过程，从而形成多个光发器连接组；
    CPU有输出多个不同特征信号的CPU特征输出接口，每个所述CPU特征输出接口连接多组所述光发器连接组，由所述多组所述光发器连接组连接构成一个光发器特征组，构成所述光发器特征组的所述每一组光发器连接组的光发器均发射不同特征信号；
    多个所述光发器特征组分别与CPU的多个光CPU输入接口连接，每一个所述光发器特征组的通断均由CPU的一个所述光CPU输入接口控制；
    使用时，CPU不断检测各信号输入接口的信号。
  10. 一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、光开关、导光板，光发器发射的光信号通过光开关与光接器光路导通；当光开关被触发时，光发器与光接 器的光路产生通断；
    其特征是：将所述导光板分为n个光区，n个光区分别为第一光区(7a)、第二光区(7b)、第三光区(7c).......第n光区，将各光区内的光信号彼此被隔离；
    将所述第一光区(7a)内的多个所述光发器与第一光接器(G1)光路导通，
    将所述第二光区(7b)内的多个所述光发器与第二光接器(G2)光路导通，
    将所述第三光区(7c)内的多个所述光发器与第三光接器(G3)光路导通，
    .......；
    将所述第一光区(7a)的一个所述光发器、所述第二光区(7b)的一个所述光发器、所述第三光区(7c)的一个所述光发器.......电气连接，形成一个光发器连接组，依此重复连接，形成第一光发器连接组、第二光发器连接组、第三光发器连接组.......；
    CPU有输出多个不同特征信号的CPU特征输出接口，每个所述CPU特征输出接口连接多组所述光发器连接组，由所述多组光发器连接组连接构成一个LED特征连组，所述LED特征连组在同一光区的光发器均发射不同特征信号；
    多个所述LED特征连组分别与CPU的多个CPU输出接口连接，每一个所述LED特征连组的通断均由CPU的一个所述CPU输出接口控制，CPU输出接口由ⅠCPU输出接口(B1)、ⅡCPU输出接口(B2)、ⅢCPU输出接口(B3).......构成，
    由第一LED特征连组与CPU的ⅠCPU输出接口(B1)连接，由ⅠCPU输出接口(B1)控制第一LED特征连组的通断，
    由第二LED特征连组与CPU的ⅡCPU输出接口(B2)连接，由ⅡCPU输出接口(B2)控制第二LED特征连组的通断，
    由第三LED特征连组与CPU的ⅢCPU输出接口(B3)连接，由ⅢCPU输出接口(B3)控制第三LED特征连组的通断.......；
    将所述第一光区(7a)的第一光接器(G1))、所述第二光区(7b)的第二光接器(G2)、所述第三光区(7c)的第三光接器(G3).......，分别与CPU的第一信号输入接口(C1)连接、CPU的第二信号输入接口(C2)连接、第三信号输入接口(C3)、CPU的第三信号输入接口(C3).......对应连接；
    使用时，CPU不断检测第一信号输入接口(C1)的信号、第二信号输入接口(C2)的信号、第三信号输入接口(C3)的信号......。
  11. 如权利要求10所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述CPU 有2个发射不同特征信号的所述CPU特征输出接口：CPU特征输出接口(A1)、CPU特征输出接口(A2)，所述CPU特征输出接口(A1)连接多组所述光发器连组，所述CPU特征输出接口(A2)连接多组所述光发器连组；
    由分别与CPU特征输出接口(A1)、CPU特征输出接口(A2)连接的两组所述光发器连组连接构成第一光发器特征组，所述第一光发器特征组再与ⅠCPU输出接口(B1)连接，
    由分别与CPU特征输出接口(A1)、CPU特征输出接口(A2)连接的两组所述光发器连组连接构成第二光发器特征组，所述第二光发器特征组再与ⅡCPU输出接口(B2)连接，
    由分别与CPU特征输出接口(A1)、CPU特征输出接口(A2)连接的两组所述光发器连组连接构成第三光发器特征组，所述第三光发器特征组再与ⅢCPU输出接口(B3)连接，.......由分别与CPU特征输出接口(A1)、CPU特征输出接口(A2)连接的两组所述光发器连组连接构成第n光发器特征组，所述第n光发器特征组再与CPU输出接口(Bn)连接；
    由输出接口(B1)、输出接口(B2)、输出接口(B3).......输出接口(Bn)分别控制第一光发器特征组、第二光发器特征组、第三光发器特征组.......第n光发器特征组的通断。
  12. 如权利要求9或10或11所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述导光板阵列光开关模块还包括电路片，所述电路片设置有CPU输出口、CPU输入口、CPU特征输出口；所述CPU输出口、所述CPU输入口、所述CPU特征输出口分别与CPU的CPU输出接口、所述CPU的CPU输出接口、所述CPU的CPU特征输出接口对应连接；
    一个所述电路片上的所述CPU输出口、所述CPU输入口、所述CPU特征输出口分别与另一个电路片上的所述CPU输出接口、所述CPU输入接口、所述CPU特征输出接口对应连接或所述CPU输出口、所述CPU输入口分别、所述CPU特征输出口与所述CPU输出接口、所述CPU输入接口、CPU特征输出接口对应连接，所述CPU输出口、所述CPU输入口分别、所述CPU特征输出口与所述CPU输出接口、所述CPU输入接口、CPU特征输出接口位于同一所述电路片上。
  13. 如权利要求10或11或12所述的一种导光板光开关及导光板阵列光开关模块，其特征是：CPU有2个发射不同特征信号的CPU特征输出接口：CPU特征输出接口(A1)、CPU特征输出接口(A2)，其中，CPU特征输出接口(A1)发出01，CPU特征输出接口(A2)发出10时，应确保：CPU特征输出接口(A1)发出0，CPU特征输出接口(A2)发出1两个信号时在时间上同步；CPU特征输出接口(A1)发出1，CPU特征输出接口(A2)发出0两个信号时在时间上同步，从而确保每一刻均只有一组光发器连组发光或CPU有3个发射不同特征 信号的CPU特征输出接口：CPU特征输出接口(A1)、CPU特征输出接口(A2)、CPU特征输出接口(A3)，其中，CPU特征输出接口(A1)发出001，CPU特征输出接口(A2)发出100，CPU特征输出接口(A3)发出010时，应确保：CPU特征输出接口(A1)发出0，CPU特征输出接口(A2)发出1，CPU特征输出接口(A3)发出0三个信号时在时间上同步；CPU特征输出接口(A1)发出0，CPU特征输出接口(A2)发出0，CPU特征输出接口(A3)发出1三个信号时在时间上同步；CPU特征输出接口(A1)发出1，CPU特征输出接口(A2)发出0，CPU特征输出接口(A3)发出0三个信号时在时间上同步，从而确保每一刻均只有一组光发器连组发光或CPU有4个发射不同特征信号的CPU特征输出接口：.......。
  14. 如权利要求3或4或5或9或10所述的一种导光板光开关及导光板阵列光开关模块，其特征是：各所述光区内的光发器数量相等时，每组光发器连组的光发器数量相同或各所述光区内的光发器数量不相等时，部分光发器连组的光发器数量不相同。
  15. 一种导光板光开关及导光板阵列光开关模块，包括光发器、光接器、电路片、导光板、光开关，其中，光发器发射的光信号通过导光板上的传播光路、光开关与光接器光路导通，当光开关被触发时，光发器与光接器的光路产生通断；
    其特征是：所述导光板由开关导光板(7)构成，所述开关导光板(7)上设置有贯穿其板面的导光板贯穿孔，所述导光板贯穿孔由LED开关孔(7-9)、导板阻断孔(7-2)、左前光路孔(7-10)及右前光路孔(7-11)构成，其中，所述光发器为侧面发光的光发器，所述光发器位于LED开关孔(7-9)内，所述左前光路孔(7-10)、所述右前光路孔(7-11)贯穿所述开关导光板(7)的板面，在所述左前光路孔(7-10)、所述右前光路孔(7-11)之间形成前光路板(7-12)；所述前光路板(7-12)的一端位于LED开关孔(7-9)的侧壁上，并与所述光发器光路导通，所述前光路板(7-12)的另一端位于导板阻断孔(7-2)的侧壁上，所述前光路板(7-12)是所述传播光路的一部份。
  16. 如权利要求15所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述开关导光板(7)的上下表面均贴有一张反射膜，其中一张所述反射膜片设置有贯穿其板面的右前反射孔(6-5)、左前反射孔(6-4)，所述右前反射孔(6-5)、所述左前反射孔(6-4)分别与所述右前光路孔(7-11)、所述左前光路孔(7-10)位置对应；
    该所述反射膜片在所述右前反射孔(6-5)、左前反射孔(6-4)的靠近前光路板(7-12)的边分别有向外延伸的右前延边膜(6-8)、左前延边膜(6-7)，由右前延边膜(6-8)、左前延边膜(6-7)构成该所述反射膜的延反射膜，该所述反射膜的延反射膜与另一张所述反射膜片粘 接连接；
    所述前光路板(7-12)的左右两个截面分别被所述左前延边膜(6-7)包覆、所述右前延边膜(6-8)包覆，所述前光路板(7-12)的左右两个截面由成型所述右前反射孔(6-5)、所述左前反射孔(6-4)形成。
  17. 如权利要求15所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述开关导光板(7)被分为多个光区，多个所述光区内的光信号被彼此隔离；在每一个所述光区内，多个所述光发器分别与一组所述光接器的光路导通或分别与一个所述光接器的光路导通。
  18. 如权利要求17所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述光开关模块还包括有反射光信号的反射膜，所述开关导光板(7)的上下表面均设置有反射光信号的反射膜，所述反射膜设置有延反射膜；
    所述开关导光板(7)设置有贯穿其板面的开导反射孔7-13，冲裁成型所述开导反射孔7-13形成的截面为导板端截面(7-14)，所述延反射膜包覆所述导板端截面(7-14)形成光反射面；所述前导光路7-15与导板端截面(7-14)的夹角与反射光路(7-16)与导板端截面(7-14)的夹角相等，使所述光发器经所述光开关发射的光信号，沿前导光路(7-15)经导板端截面(7-14)、所述延反射膜，所述延反射膜反射光信号，反射出的光信号沿反射光路(7-16)与所述光接器的导通。
  19. 如权利要求15所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述导光板由发光导光板(13)及开关导光板(7)构成，所述发光导光板(13)位于所述开关导光板(7)的上方，其中，所述发光导光板(13)的上表面设置有发导光网点(13-1)，所述光发器发射的光信号与所述发导光网点(13-1)光路导通，所述发光导光板(13)设置有贯穿其板面的发光板孔13-3；所述开关导光板(7)上的阻断空间(9-1)与所述发光导光板(13)上的发光板孔13-3位置对准；所述发光导光板(13)上设置的LED发光孔(13-2)与所述开关导光板(7)上设置的LED开关孔(7-9)位置对准，所述LED开关孔(7-9)、所述LED发光孔(13-2)均能容纳所述光发器。
  20. 如权利要求15所述的一种导光板光开关及导光板阵列光开关模块，其特征是：所述光开关模块还包括光阻漏部，所述光阻漏部阻挡光信号从所述光开关漏出。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116913717A (zh) * 2023-09-13 2023-10-20 合肥联宝信息技术有限公司 一种薄膜键盘

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040257829A1 (en) * 2003-06-20 2004-12-23 Katsuhiko Suwa Illumination device and illuminated input device
CN1780147A (zh) * 2004-11-17 2006-05-31 陈�峰 光电光导输入器
CN101072024A (zh) * 2006-05-08 2007-11-14 陈�峰 频率光码矩阵输入模块
CN101256911A (zh) * 2008-04-11 2008-09-03 精模电子科技（深圳）有限公司 具有导光板的发光键盘
CN201233827Y (zh) * 2008-07-31 2009-05-06 新巨企业股份有限公司 薄型发光键盘架构
CN201327625Y (zh) * 2008-10-22 2009-10-14 兴隆发电子股份有限公司 强化导光式发光键盘
US20090266696A1 (en) * 2008-04-28 2009-10-29 Citizen Electronics Co., Ltd. Sheet-switch module

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1563748A (en) * 1978-04-18 1980-03-26 Standard Telephones Cables Ltd Keyblocks
DE3901419A1 (de) * 1989-01-19 1990-07-26 Philips Patentverwaltung Tastatur fuer ein elektrisches geraet
GB9119092D0 (en) * 1991-09-06 1991-10-23 Sarnoff David Res Center Optomechanical keyboard
CN101846772A (zh) * 2009-03-23 2010-09-29 陈�峰 薄膜光波导纵横开关模块
WO2017167248A1 (zh) * 2016-03-30 2017-10-05 陈�峰 一种有阻断体及阻断动作空间的光开关装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040257829A1 (en) * 2003-06-20 2004-12-23 Katsuhiko Suwa Illumination device and illuminated input device
CN1780147A (zh) * 2004-11-17 2006-05-31 陈�峰 光电光导输入器
CN101072024A (zh) * 2006-05-08 2007-11-14 陈�峰 频率光码矩阵输入模块
CN101256911A (zh) * 2008-04-11 2008-09-03 精模电子科技（深圳）有限公司 具有导光板的发光键盘
US20090266696A1 (en) * 2008-04-28 2009-10-29 Citizen Electronics Co., Ltd. Sheet-switch module
CN201233827Y (zh) * 2008-07-31 2009-05-06 新巨企业股份有限公司 薄型发光键盘架构
CN201327625Y (zh) * 2008-10-22 2009-10-14 兴隆发电子股份有限公司 强化导光式发光键盘

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4060897A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116913717A (zh) * 2023-09-13 2023-10-20 合肥联宝信息技术有限公司 一种薄膜键盘
CN116913717B (zh) * 2023-09-13 2023-11-28 合肥联宝信息技术有限公司 一种薄膜键盘

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