阅读说明：本技术 一种导光板光开关及导光板阵列光开关模块 (Light guide plate optical switch and light guide plate array optical switch module ) 是由 陈�峰 于 2020-05-01 设计创作，主要内容包括：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。(A light guide plate optical switch and light guide plate array optical switch module comprises an optical transmitter, an optical connector, a circuit chip, an optical switch and a light guide plate, wherein an optical signal transmitted by the optical transmitter is conducted with an optical path of the optical connector through the optical switch; the light guide plate is divided into a plurality of light areas, and light signals in the light areas are isolated from each other; in each light area, a plurality of light generators are respectively communicated with the light paths of a group of light connectors or the light paths of one light connector; the optical transceiver is connected with the input port of the CPU; the thin film optical switch has simple manufacturing process and low production cost, in particular to the thin film optical switch with long service life and ultrathin thickness, which can be widely applied to PC keyboards, thin film keyboards and thin notebook keyboards.)

A light guide plate optical switch and light guide plate array optical switch module comprises an optical transmitter, an optical connector, a circuit chip, an optical switch and a light guide plate, wherein an optical signal transmitted by the optical transmitter is conducted with an optical path of the optical connector through the optical switch;

the method is characterized in that: the light guide plate is divided into a plurality of light areas, and optical signals in the light areas are isolated from each other;

in each optical zone, a plurality of optical transmitters are respectively communicated with the optical paths of a group of optical connectors or the optical paths of one optical connector;

the optical transmitters are connected with an output port of the CPU, the optical connectors are connected with an input port of the CPU, and the optical transmitters in each optical area transmit optical signals which can be recognized by the CPU;

when the CPU is used, the CPU detects the input port of the CPU, and when one optical switch of one light zone is pressed, the CPU judges that one optical switch of one light zone is pressed.

The light guide plate optical switch and the light guide plate array optical switch module according to claim 1, wherein: the light guide plate is composed of a switch light guide plate (7); the light emitter is connected with the output port of the CPU by adopting the following steps: the connection process is repeated to form a plurality of optical transmitter connection groups, and the optical transmitter connection groups are respectively connected with the CPU output ports correspondingly.

A light guide plate optical switch and a light guide plate array optical switch module comprise an optical transmitter, an optical connector, a circuit chip and an optical switch, wherein the light guide plate is switched on and off, and an optical signal transmitted by the optical transmitter is conducted with an optical path of the optical connector through the optical switch; when the optical switch is triggered, the light path of the light emitter and the light receiver is switched on and off;

the method is characterized in that: the switch light guide plate (7) is divided into at least two light areas, the two light areas are a first light area (7a) and a second light area (7b), and light signals in the first light area (7a) are isolated from light signals in the second light area (7 b);

conducting light emitting windows of a plurality of light emitters in the first light zone (7a) with light paths of a plurality of optical switches and first optical connectors, and conducting light emitting windows of a plurality of light emitters in the second light zone (7b) with light paths of a plurality of optical switches and second optical connectors;

connecting one optical transmitter of the first optical zone (7a) with one optical transmitter of the second optical zone (7b) to form a connecting optical transmitter group, and correspondingly connecting a first connecting optical transmitter group, a second connecting optical transmitter group and a third connecting optical transmitter group to a first CPU output port, a second CPU output port and a third CPU output port to an n CPU output port; connecting the first optical connector and the second optical connector with a first CPU input port of a CPU and a second CPU input port of the CPU respectively;

when the device is used, the CPU continuously detects signals of the first CPU input port and the second CPU input port;

when the optical switch of the first optical area (7a) is pressed, the CPU detects the change of the optical signal of the first optical area (7a) by detecting the input port of the first CPU, and the CPU Hen judges that a certain optical switch of the first optical area (7a) is pressed according to the change of the optical signal;

when the optical switch of the second optical area (7b) is pressed, the CPU detects the change of the optical signal of the second optical area (7b) through detecting the input port of the second CPU, and the CPU Hen judges that a certain optical switch of the second optical area (7b) is pressed according to the change of the optical signal.

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 2 or 3, wherein: the light guide plate array optical switch module further comprises a CPU, wherein the CPU is provided with a plurality of CPU output interfaces and a plurality of CPU input interfaces, the connecting optical transmitter group is connected with the CPU output interfaces through the CPU output ports, and the optical connector is connected with the CPU input interfaces through the CPU input ports;

the CPU output port, the CPU input port and the CPU output interface, the CPU input interface are positioned on the same circuit board or the CPU output port, the CPU input port and the CPU output interface, the CPU input interface are respectively positioned on different circuit boards.

The light guide plate optical switch and the light guide plate array optical switch module according to claim 4, wherein: and the CPU continuously and circularly scans and detects each CPU input port or continuously and simultaneously detects each CPU input port, and when the CPU detects the signal change of one output port, the CPU judges that one optical switch is triggered according to the optical transmitter connecting group connected with the CPU output port and the optical zone where the optical transmitter connected with the optical transmitter connecting group is located.

The light guide plate optical switch and the light guide plate array optical switch module according to claim 4, wherein: when the array optical switch module works, the CPU is communicated with one CPU output port, the optical transceiver connected with the CPU output port only has one optical transceiver at most in each optical zone to transmit optical signals, one group of optical transceivers in each optical zone receives optical signals or one optical transceiver receives optical signals, each CPU input port connected with the optical transceiver in group has signal input, the CPU judges whether the optical switch is triggered in each optical zone, and the CPU closes the CPU output port;

the CPU is communicated with another CPU output port, the optical transceiver connected with the CPU output port only has one optical transceiver at most in each optical zone to transmit optical signals, one group of optical transceivers in each optical zone receives optical signals or one optical transceiver receives optical signals, each CPU input port connected with the optical transceiver connected in group has signal input, the CPU judges whether the optical switch is triggered in each optical zone, and the CPU closes the CPU output port; ......

Continuously circulating the above processes;

when a certain optical switch is triggered, the optical path of the optical area is blocked, so that the optical connector of the optical area cannot receive optical signals, no signal is input from the input port of the CPU connected with the optical connector, and the CPU Hen determines the position of the optical switch according to the connected optical connector group and the corresponding relationship between the optical area and the optical connector.

The light guide plate optical switch and the light guide plate array optical switch module as claimed in claim 2, 3, 4, 5 or 6, wherein: and each CPU output port of the CPU transmits different characteristic signals, and the optical transmitters connected with the optical transmitters in a group transmit different characteristic signals in the same optical area.

A light guide plate optical switch and a light guide plate array optical switch module comprise an optical transmitter, an optical connector, a circuit chip, an optical switch and a light guide plate, wherein an optical signal transmitted by the optical transmitter is conducted with an optical path of the optical connector through the optical switch; when the optical switch is triggered, the light path of the light emitter and the light receiver is switched on and off;

the method is characterized in that: dividing the light guide plate into a plurality of light regions, wherein light signals propagating in the light regions are isolated from each other;

the plurality of optical transmitters in each optical zone are communicated with a group of optical connectors or the optical path of one optical connector, and the optical connectors in each optical zone are respectively connected with a signal input interface of a CPU (central processing unit);

connecting an optical transmitter in one optical region with an optical transmitter in another optical region to form an optical transmitter connection group in which at most one optical transmitter in each optical region is connected with each other, and repeating the connection process to form a plurality of optical transmitter connection groups;

the CPU is provided with a CPU characteristic output interface for outputting a plurality of different characteristic signals, each CPU characteristic output interface is connected with a plurality of groups of optical generator connection groups, the plurality of groups of optical generator connection groups are connected to form an optical generator characteristic group, and the optical generators of each group of optical generator connection groups forming the optical generator characteristic group emit different characteristic signals;

the plurality of optical transmitter characteristic groups are respectively connected with a plurality of optical CPU input interfaces of a CPU, and the on-off of each optical transmitter characteristic group is controlled by one optical CPU input interface of the CPU;

when the signal input interface is used, the CPU continuously detects signals of all the signal input interfaces.

A light guide plate optical switch and a light guide plate array optical switch module comprise an optical transmitter, an optical connector, a circuit chip, an optical switch and a light guide plate, wherein an optical signal transmitted by the optical transmitter is conducted with an optical path of the optical connector through the optical switch; when the optical switch is triggered, the light path of the light emitter and the light receiver is switched on and off;

the method is characterized in that: the light guide plate is divided into n light regions which are respectively a first light region (7a), a second light region (7b) and a third light region (7c) · n.. n light region, and optical signals in the light regions are isolated from one another;

a plurality of the optical generators in the first optical region (7a) are optically conducted to a first optical connector (G1),

a plurality of the optical generators in the second optical region (7b) are optically conducted to a second optical connector (G2),

a plurality of the optical generators in the third optical region (7c) are optically conducted to a third optical connector (G3),

.......；

electrically connecting one of the light emitters of the first light region (7a), one of the light emitters of the second light region (7b), and one of the light emitters of the third light region (7c) to form a light emitter connection group, and repeatedly connecting the light emitters to form a first light emitter connection group, a second light emitter connection group, and a third light emitter connection group;

the CPU is provided with a CPU characteristic output interface for outputting a plurality of different characteristic signals, each CPU characteristic output interface is connected with a plurality of groups of light generator connecting groups, the plurality of groups of light generator connecting groups are connected to form an LED characteristic connecting group, and the light generators in the same light area of the LED characteristic connecting group emit different characteristic signals;

the LED characteristic connection groups are respectively connected with a plurality of CPU output interfaces of the CPU, the on-off of each LED characteristic connection group is controlled by one CPU output interface of the CPU, the CPU output interface is composed of a CPU output interface I (B1), a CPU output interface II (B2) and a CPU output interface III (B3).

The first LED characteristic connection group is connected with an I CPU output interface (B1) of the CPU, the I CPU output interface (B1) controls the connection and disconnection of the first LED characteristic connection group,

the second LED characteristic connection group is connected with the II CPU output interface (B2) of the CPU, the II CPU output interface (B2) controls the on-off of the second LED characteristic connection group,

the third LED characteristic connection group is connected with a III CPU output interface (B3) of the CPU, and the III CPU output interface (B3) controls the connection and disconnection of the third LED characteristic connection group;

correspondingly connecting a first optical connector (G1) of the first optical region (7a), a second optical connector (G2) of the second optical region (7b) and a third optical connector (G3) of the third optical region (7C) with a first signal input interface (C1) of a CPU, a second signal input interface (C2) of the CPU, a third signal input interface (C3) of the CPU and a third signal input interface (C3) of the CPU respectively;

when the signal detection device is used, the CPU continuously detects signals of the first signal input interface (C1), the second signal input interface (C2) and the third signal input interface (C3).

The light guide plate optical switch and the light guide plate array optical switch module according to claim 9, wherein: the CPU has 2 CPU characteristic output interfaces for transmitting different characteristic signals: the system comprises a CPU characteristic output interface (A1) and a CPU characteristic output interface (A2), wherein the CPU characteristic output interface (A1) is connected with a plurality of groups of optical generator connecting groups, and the CPU characteristic output interface (A2) is connected with a plurality of groups of optical generator connecting groups;

two groups of optical generators connected with a CPU characteristic output interface (A1) and a CPU characteristic output interface (A2) are connected to form a first optical generator characteristic group, the first optical generator characteristic group is connected with a CPU output interface (B1),

two groups of optical generators connected with a CPU characteristic output interface (A1) and a CPU characteristic output interface (A2) are connected in series to form a second optical generator characteristic group, the second optical generator characteristic group is connected with a II CPU output interface (B2),

a third light generator characteristic group is formed by connecting two groups of light generators connected with a CPU characteristic output interface (A1) and a CPU characteristic output interface (A2) in a connected mode, and the third light generator characteristic group is connected with a III CPU output interface (B3).

Two groups of optical transmitters connected with a CPU characteristic output interface (A1) and a CPU characteristic output interface (A2) are connected to form an nth optical transmitter characteristic group, and the nth optical transmitter characteristic group is connected with a CPU output interface (Bn);

the output interface (B1), the output interface (B2) and the output interface (B3) respectively control the on-off of the first light generator characteristic group, the second light generator characteristic group and the third light generator characteristic group.

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 8, 9 or 10, wherein: the light guide plate array optical switch module also comprises a circuit chip, wherein the circuit chip is provided with a CPU output port, a CPU input port and a CPU characteristic output port; the CPU output port, the CPU input port and the CPU characteristic output port are respectively and correspondingly connected with a CPU output interface of a CPU, a CPU output interface of the CPU and a CPU characteristic output interface of the CPU;

the CPU output port, the CPU input port and the CPU characteristic output port on one circuit chip are correspondingly connected with the CPU output interface, the CPU input interface and the CPU characteristic output interface on another circuit chip respectively or the CPU output port, the CPU input port and the CPU characteristic output port are correspondingly connected with the CPU output interface, the CPU input interface and the CPU characteristic output interface respectively, and the CPU output port, the CPU input port and the CPU characteristic output port are respectively positioned on the same circuit chip.

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 9, 10 or 11, wherein: the CPU has 2 CPU characteristic output interfaces for transmitting different characteristic signals: CPU characteristic output interface (A1), CPU characteristic output interface (A2), wherein, CPU characteristic output interface (A1) sends out 01, CPU characteristic output interface (A2) sends out 10, should ensure: the CPU characteristic output interface (A1) sends out 0, and the CPU characteristic output interface (A2) sends out 1 two signals which are synchronous in time; the CPU characteristic output interface (A1) sends out 1, and the CPU characteristic output interface (A2) sends out 0 two signals which are synchronized in time, thereby ensuring that only one group of light emitters emits light in a group at each moment or the CPU has 3 CPU characteristic output interfaces emitting different characteristic signals: the CPU characteristic output interface (A1), the CPU characteristic output interface (A2) and the CPU characteristic output interface (A3), wherein the CPU characteristic output interface (A1) sends 001, the CPU characteristic output interface (A2) sends 100, and when the CPU characteristic output interface (A3) sends 010, the following steps are ensured: the CPU characteristic output interface (A1) sends out 0, the CPU characteristic output interface (A2) sends out 1, and the CPU characteristic output interface (A3) sends out 0 three signals which are synchronous in time; the CPU characteristic output interface (A1) sends out 0, the CPU characteristic output interface (A2) sends out 0, and the CPU characteristic output interface (A3) sends out 1 three signals which are synchronous in time; the CPU characteristic output interface (A1) sends out 1, the CPU characteristic output interface (A2) sends out 0, the CPU characteristic output interface (A3) sends out 0 three signals and is synchronous in time, thereby ensuring that only one group of light emitters emit light in a group or the CPU has 4 CPU characteristic output interfaces emitting different characteristic signals at each moment: ........

The light guide plate optical switch and light guide plate array optical switch module as claimed in claim 2, 3, 4, 8 or 9, wherein: when the number of the optical generators in each optical region is equal, and the number of the optical generators in each group of optical generators is equal or the number of the optical generators in each optical region is unequal, the number of the optical generators in part of the optical generators in each group of optical generators is different.

A light guide plate optical switch and a light guide plate array optical switch module comprise an optical emitter, an optical connector, a circuit board, a light guide plate and an optical switch, wherein an optical signal emitted by the optical emitter is conducted with an optical connector through a transmission optical path on the light guide plate and the optical switch;

the method is characterized in that: the light guide plate is composed of a switch light guide plate (7), a light guide plate through hole penetrating through the plate surface of the switch light guide plate (7) is formed in the switch light guide plate (7), and the light guide plate through hole is composed of an LED switch hole (7-9), a guide plate blocking hole (7-2), a left front light path hole (7-10) and a right front light path hole (7-11), wherein the light emitter is a light emitter emitting light from the side surface, the light emitter is positioned 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 through the plate 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 the front light circuit board (7-12) is located on the side wall of the LED switch hole (7-9) and is conducted with the light transmitter light path, the other end of the front light circuit board (7-12) is located on the side wall of the guide board blocking hole (7-2), and the front light circuit board (7-12) is a part of the propagation light path.

The light guide plate optical switch and the light guide plate array optical switch module according to claim 14, wherein: the upper surface and the lower surface of the switch light guide plate (7) are respectively adhered with a reflection film, wherein one reflection film is provided with a right front reflection hole (6-5) and a left front reflection hole (6-4) which penetrate through the surface of the reflection film, and the right front reflection hole (6-5) and the left front reflection hole (6-4) respectively correspond to the right front light path hole (7-11) and the left front light path hole (7-10);

the reflection diaphragm is provided with a right front extending edge film (6-8) and a left front extending edge film (6-7) which extend outwards respectively at the edges of the right front reflection hole (6-5) and the left front reflection hole (6-4) close to the front light circuit board (7-12), the extending reflection film of the reflection film is formed by the right front extending edge film (6-8) and the left front extending edge film (6-7), and the extending reflection film of the reflection film is connected with the other reflection diaphragm in an adhesive manner;

the left and right sections of the front light circuit board (7-12) are respectively coated by the left front edge extending film (6-7) and the right front edge extending film (6-8), and the left and right sections of the front light circuit board (7-12) are formed by molding the right front reflection hole (6-5) and the left front reflection hole (6-4).

The light guide plate optical switch and the light guide plate array optical switch module according to claim 14, wherein: the switch light guide plate (7) is divided into a plurality of light regions, and light signals in the light regions are isolated from each other; in each optical area, the plurality of optical transmitters are respectively communicated with the optical paths of a group of optical connectors or the optical paths of one optical connector.

The light guide plate optical switch and light guide plate array optical switch module according to claim 16, wherein: the optical switch module also comprises a reflection film for reflecting optical signals, the upper surface and the lower surface of the switch light guide plate (7) are respectively provided with the reflection film for reflecting the optical signals, and the reflection film is provided with a delayed reflection film;

the switch light guide plate (7) is provided with opening and guiding reflection holes 7-13 penetrating through the plate surface of the switch light guide plate, the cross section formed by blanking and forming the opening and guiding reflection holes 7-13 is a guide plate end cross section (7-14), and the extending reflection film coats the guide plate end cross section (7-14) to form a light reflection surface; the included angle between the front light path 7-15 and the guide plate end section (7-14) is equal to the included angle between the reflection light path (7-16) and the guide plate end section (7-14), so that the light signal emitted by the light generator through the optical switch passes through the guide plate end section (7-14) and the delay reflection film along the front light path (7-15), the delay reflection film reflects the light signal, and the reflected light signal is conducted with the optical connector along the reflection light path (7-16).

The light guide plate optical switch and the light guide plate array optical switch module according to claim 14, wherein: 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 positioned above the switch light guide plate (7), wherein a light-emitting light guide dot (13-1) is arranged on the upper surface of the light-emitting light guide plate (13), a light signal emitted by the light generator is conducted with a light path of the light-emitting light guide dot (13-1), and the light-emitting light guide plate (13) is provided with a light-emitting plate hole 13-3 penetrating through the plate surface of the light-emitting light guide plate; the blocking space (9-1) on the switch light guide plate (7) is aligned with the light emitting plate hole 13-3 on the light emitting light guide plate (13); LED lightening hole (13-2) that set up on luminous light guide plate (13) with LED switch hole (7-9) position alignment that set up on switch light guide plate (7), LED switch hole (7-9) LED lightening hole (13-2) homoenergetic holds the light-emitting ware.

The light guide plate optical switch and the light guide plate array optical switch module according to claim 14, wherein: the optical switch module further includes a light blocking leakage portion that blocks light signals from leaking out of the optical switch.

A light guide plate optical switch and a light guide plate array optical switch module comprise an optical emitter, an optical connector, a circuit board, a light guide plate and an optical switch, wherein an optical signal emitted by the optical emitter is conducted with an optical connector through a transmission optical path on the light guide plate and the optical switch;

the method is characterized in that: the light guide plate is composed of a switch light guide plate (7), the optical switch is composed of a switch blocking body (9-1) blocking a switch sheet (9), the light generator, the optical connector, the switch light guide plate (7) and a guide plate blocking hole (7-2) formed in the switch light guide plate (7), wherein the light generator is composed of a light source part (10-1), and the light source part (10-1) is positioned in the guide plate blocking hole (7-2);

the switch blocking body (9-1) is composed of a switch blocking plate (9-2), a blocking connecting plate (9-4), a blocking through hole (9-5), an arch blocking elastic sheet (9-6) and a blocking middle body (9-8), wherein the lower end of the arch blocking elastic sheet (9-6) is connected with the plate surface of the blocking switch sheet (9), the upper end of the arch blocking elastic sheet (9-6) is upwards connected with the blocking middle body (9-8), the blocking through hole (9-5) penetrates through the arch blocking elastic sheet (9-6) to form a space of the blocking through hole (9-5), or the blocking through hole (9-5) penetrates through the arch blocking elastic sheet (9-6) and the plate surface of the blocking switch sheet (9) to form a space of the blocking through hole (9-5);

the switch blocking plate (9-2) is connected with the blocking body (9-8) through the blocking connecting plate (9-4), and the blocking connecting plate (9-4) is aligned with the spatial position of the blocking through hole (9-5).

The utility model provides a light guide plate photoswitch and light guide plate array photoswitch module which characterized by: the light guide plate array optical switch module is provided with a blocking switch sheet (9), the blocking switch sheet (9) 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), a blocking connecting plate (9-4), a lower blocking through hole (9-5), an arch blocking elastic sheet (9-6) and a middle blocking body (9-8); the lower end of the arch-resisting elastic sheet (9-6) is connected with the plate surface of the blocking switch sheet (9), the upper end of the arch-resisting elastic sheet (9-6) is upwards connected with the middle-resisting body (9-8), and the elastic arch-resisting elastic sheet (9-6) supports the middle-resisting body (9-8); the lower blocking through hole (9-5) penetrates through the arch blocking elastic sheet (9-6) to form a space of the lower blocking through hole (9-5), or the lower blocking through hole (9-5) penetrates through the arch blocking elastic sheet (9-6) and the plate surface of the blocking switch sheet (9) to form a space of the lower blocking through hole (9-5);

the switch blocking plate (9-2) is arranged above the space of the lower blocking through hole (9-5), and the switch blocking plate (9-2) is connected with the middle blocking body (9-8) through the blocking connecting plate (9-4);

when the middle blocking body (9-8) is pressed, the middle blocking body (9-8) overcomes the elastic force generated by the arch blocking elastic sheet (9-6) to move downwards, and the blocking connecting plate (9-4) enters the space of the lower blocking through hole (9-5).

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 20 or 21, wherein: the light source part (10-1) is composed of 3 groups of LEDs (10-2), the 3 groups of LEDs (10-2) form an angle of about 120 degrees with each other, the 3 lower blocking through holes (9-5) form an angle of about 120 degrees with each other, and the LEDs (10-2) are respectively positioned in the lower blocking through holes (9-5).

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 20 or 21, wherein: the light source part (10-1) is composed of 2 groups of LEDs (10-2), the 2 groups of LEDs (10-2) form an angle of 180 degrees with each other, the 2 lower blocking through holes (9-5) form an angle of 180 degrees with each other, and the LEDs (10-2) are respectively positioned in the lower blocking through holes (9-5).

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 20 or 21, wherein: the light source part (10-1) is composed of 1 group of LEDs (10-2), and the LEDs (10-2) are respectively positioned in 1 lower blocking through hole (9-5).

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 20 or 21, wherein: the space surrounded by the support middle blocking body (9-8), the blocking connecting plate (9-4) and the switch blocking plate (9-2) is a blocking space (9-3), and the blocking space (9-3) of the switch blocking body (9-1) can contain the LED (10-2).

A light guide plate optical switch and light guide plate array optical switch module as claimed in claim 20 or 21, wherein: a metal support plate (2) is arranged above the array optical switch module (3), an outer support plate hole (2-1) and a support plate middle hole (2-2) penetrating through the plate surface of the metal support plate (2) are arranged on the metal support plate, and a middle blocking body (9-8) and a switch blocking plate (9-2) are arranged on the switch blocking body (9-1);

the middle resistance body (9-8) and the switch blocking plate (9-2) are respectively positioned in the support plate middle hole (2-2) and the support plate outer hole (2-1).

A method for COB packaging LEDs on a flexible FPC circuit chip comprises the steps of: firstly: forming an LED through hole (10-4) penetrating through the surface of an FPC circuit piece (10), forming an electronic circuit (10-8) on the FPC circuit piece (10), welding a connecting conductor piece (10-7) in a sheet shape between an FPC suspension end plate (10-3) and an FPC extension plate (10-5), and packaging an LED chip on the FPC suspension end plate (10-3) in a COB manner to form an LED (10-2); (the above process steps are not in sequence) and finally: the connection conductor piece (10-7) is bent by about 90 degrees by the forming punch, so that the LED (10-2) becomes a side-emitting LED.