External driving module for driving ink screen keyboard and ink screen keyboard system

Abstract

The invention discloses an external driving module for driving an ink screen keyboard and an ink screen keyboard system.The external driving module comprises a mounting base, a TFT circuit module and an insulating film, the TFT circuit module is used for driving particles, with positive and negative electricity, of an electronic ink film of the ink screen keyboard to move, and therefore icons of key caps of keyboard keys can be changed; according to the ink screen keyboard, the TFT circuit module is arranged on the mounting base, the mounting base is detachably connected with the keycaps of the keys, after the TFT circuit module modifies the icons of the keycaps of the keys of the keyboard, the whole external driving circuit can be taken down from the keycaps of the keys, and the technical problem that in the prior art, a TFT circuit is arranged in the ink screen keyboard, so that the ink screen keyboard is difficult to repair when damaged is solved. The ink screen keyboard system comprises an ink screen keyboard and an external driving module used for driving the ink screen keyboard, and the technical problems that the ink screen keyboard is large in weight and high in cost, and keyboard keys are difficult to repair due to the fact that a built-in driving circuit exists are solved.

Description

Technical Field

[0001] The present invention relates to the field of ink screen technology, and in particular to an external driving module for driving an ink screen keyboard and an ink screen keyboard system. Background Art

[0002] The ink screen has the characteristic of being able to maintain graphic display even after power failure, so it is widely used in various scenarios. Figure 1 As shown in the figure, the keycaps of the e-ink keyboard keys are equipped with a TFT (thin film transistor) circuit for generating an electric field to drive each pixel particle to move, an electronic ink film containing the core display part of the colored charged particles, an ITO (indium tin oxide) layer for balancing the driving voltage differences of different modules to achieve precise balance, and a protective film for protecting the ink film. However, this way of building a TFT circuit into the e-ink keyboard will make it difficult to repair the e-ink keyboard when it is damaged. Summary of the invention

[0003] The present invention provides an external driving module for driving an ink screen keyboard and an ink screen keyboard system, which are used to solve the technical problem in the prior art that a TFT circuit is built into the ink screen keyboard, which makes it difficult to repair the ink screen keyboard when it is damaged.

[0004] In view of this, a first aspect of the present invention provides an external driving module for driving an ink screen keyboard, comprising a mounting seat, a TFT circuit module and an insulating film;

[0005] The TFT circuit module and the insulating film are installed from top to bottom at the bottom of the mounting base, and the mounting base is used for detachable connection with the key caps of the ink screen keyboard keys;

[0006] The TFT circuit module is used to drive the movement of positively and negatively charged particles in the electronic ink membrane of the ink screen keyboard;

[0007] The insulating film is used to electrically isolate the TFT circuit module from the keycaps of the ink screen keyboard keys.

[0008] Optionally, a limiting groove for sleeve-fitting the key cap is provided at the bottom of the mounting seat, and the TFT circuit module and the insulating film are installed in the limiting groove from top to bottom.

[0009] Optionally, the limiting groove is provided with an opening for matching an external interface of the TFT circuit module.

[0010] Optionally, the external interface of the TFT circuit module is a USB interface.

[0011] Optionally, the external drive module further includes a host computer;

[0012] The host computer is connected to the TFT circuit module;

[0013] The host computer is used to generate a driving signal for the TFT circuit module, so that the TFT circuit module drives the positively and negatively charged particles of the electronic ink film to move.

[0014] A second aspect of the present invention provides an e-ink screen keyboard system, comprising an e-ink screen keyboard and an external driving module for driving the e-ink screen keyboard as described in any one of the first aspects;

[0015] The external driving module for driving the ink screen keyboard is detachably connected to the keycaps of the ink screen keyboard keys.

[0016] Optionally, a protective film, an electronic ink film and a protective plate are installed inside the keycaps of the ink screen keyboard keys from top to bottom.

[0017] Optionally, the top of the keycap of the ink screen keyboard key is a structure with a transparent middle and opaque surroundings.

[0018] Optionally, the keycaps of the ink screen keyboard keys are made of a material with high transmittance, high strength, low density and low static electricity accumulation.

[0019] Optionally, the top of the keycap of the ink screen keyboard key is a curved structure.

[0020] It can be seen from the above technical solutions that the external driving module for driving the e-ink screen keyboard and the e-ink screen keyboard system provided by the present invention have the following advantages:

[0021] The external driving module for driving the ink screen keyboard provided in the present invention comprises a mounting seat, a TFT circuit module and an insulating film. The TFT circuit module is used to drive the movement of positively and negatively charged particles of the electronic ink membrane of the ink screen keyboard, thereby changing the icon of the keycap of the keyboard key, and the mounting seat is detachably connected to the keycap of the key. After the TFT circuit module modifies the icon of the keycap of the keyboard key, the entire external driving circuit can be removed from the keycap of the key, thereby solving the technical problem that the prior art has a built-in TFT circuit in the ink screen keyboard, which makes it difficult to repair the ink screen keyboard when it is damaged.

[0022] Furthermore, the present invention also provides an ink screen keyboard system, which includes an ink screen keyboard and an external driving module provided in the present invention for driving the ink screen keyboard, the external driving module is detachably connected to the ink screen keyboard, and the external driving module is used to drive the movement of positively and negatively charged particles in the electronic ink membrane of the ink screen keyboard to change the icon of the water screen keyboard. On the one hand, the keycaps of the ink screen keyboard remove the original TFT circuit and ITO layer installed inside the keycaps of the keys, and only a protective film, an electronic ink membrane and a protective plate are arranged inside the keycaps of the keys, thereby reducing the weight of the ink screen keyboard and solving the technical problems of heavy weight and high cost of the ink screen keyboard. On the other hand, it also avoids the technical problem of difficult repair of damaged keyboard keys due to the built-in driving circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of the main part of the ink screen that can be displayed by the existing ink screen keyboard keys;

[0025] Figure 2 A schematic diagram of the installation of an external drive structure and a key cap of an e-ink keyboard provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a key cap for an ink screen keyboard button provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the top structure of a key cap of a key of an ink screen keyboard icon customization device provided in an embodiment of the present invention;

[0028] Wherein, the accompanying drawings are marked as follows:

[0029] 100, key cap; 101, electronic ink film; 102, protection plate; 103, protection film; 200, mounting seat; 201, TFT circuit module; 202, insulation film. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] For easier understanding, see Figure 2 , the present invention provides an embodiment of an external driving module for driving an ink screen keyboard, comprising a mounting seat 200, a TFT circuit module 201 and an insulating film 202;

[0032] The TFT circuit module 201 and the insulating film 202 are mounted from top to bottom at the bottom of the mounting base 200, and the mounting base 200 is used for detachably connecting with the key caps of the ink screen keyboard keys;

[0033] The TFT circuit module 201 is used to drive the movement of positively and negatively charged particles of the electronic ink film 101 of the ink screen keyboard;

[0034] The insulating film 202 is used to electrically isolate the TFT circuit module 201 from the keycaps of the ink screen keyboard keys.

[0035] It should be noted that the TFT circuit module 201 is used to drive the movement of the positively and negatively charged particles of the electronic ink film 101 of the ink screen keyboard, so as to change the icon of the keycap of the keyboard key. The insulating film 202 electrically isolates the TFT circuit module 201 from the keycap of the ink screen keyboard key, and at the same time protects the TFT circuit module 201 from mechanical friction damage of the keycap. The mounting seat 200 is detachably connected to the keycap of the key. After the TFT circuit module 201 modifies the icon of the keycap of the keyboard key, the entire external drive circuit can be removed from the keycap of the key, which solves the technical problem that the prior art has a built-in TFT circuit in the ink screen keyboard, which makes it difficult to repair the ink screen keyboard when it is damaged.

[0036] In one embodiment, a limiting groove for sleeve-fitting the keycap 100 is provided at the bottom of the mounting seat 200, and the TFT circuit module 201 and the insulating film 202 are installed in the limiting groove from top to bottom. The limiting groove is provided with an opening for matching the external interface of the TFT circuit module. The external interface of the TFT circuit module is a USB interface.

[0037] In one embodiment, the external driving module further includes a host computer, which is connected to the TFT circuit module 201. The host computer is used to generate a driving signal for the TFT circuit module 201, so that the TFT circuit module 201 drives the particles with positive and negative charges in the electronic ink film 101 to move. The development software configured on the host computer generates a driving signal for the TFT circuit module 201 to drive the TFT circuit module 201 to generate an electric field to drive the pixel particles of the electronic ink film 101 to move, thereby modifying the graphics on the key cap 100.

[0038] For easier understanding, see Figure 2 , Figure 3 and Figure 4 The present invention also provides an embodiment of an e-ink screen keyboard system, including an e-ink screen keyboard and an external driving module for driving the e-ink screen keyboard provided in the present invention. The external driving module for driving the e-ink screen keyboard is detachably connected to the keycaps of the e-ink screen keyboard keys.

[0039] In one embodiment, a protective film 103, an electronic ink film 101, and a protective plate 102 are installed inside the keycap of the ink screen keyboard key from top to bottom. The electronic ink film 101 serves as the icon display body of the keycap 100 of the key of the ink screen keyboard. The protective film 103 is located above the electronic ink film 101 and is used to protect the electronic ink film 101. The protective plate 102 is located below the electronic ink film 101 and is used to bear the impact of the mechanical structure at the bottom of the electronic ink film 101. The protective plate 102 uses a high-strength, low-density material that is not easy to accumulate static electricity.

[0040] The ink screen keyboard provided by the present invention removes the TFT circuit and ITO layer originally installed inside the keycap 100 of the key, and only sets the protective film 103, the electronic ink film 101 and the protective plate 102 inside the keycap 100 of the key, thereby reducing the weight of the ink screen keyboard and solving the technical problems of the existing ink screen keyboard being heavy and costly.

[0041] It should be noted that the middle part of the top of the keycap 100 on the keyboard is the striking part. In the present invention, the middle part of the top of the keycap 100 is designed to be a transparent material, and the top of the keycap 100 is coated with an opaque material. Specifically, the keycap 100 is made of a material with high transmittance, high strength, low density, and not easy to accumulate static electricity. The keycap 100 can be made of PC material, and a frosted effect is formed by chemical etching, so that the keycap 100 has the effects of high transmittance, anti-reflection, and improved hand feel. When the external drive module is in use, it is buckled on the keycap 100 through the limit groove on the mounting seat 200, and can be removed from the keycap 100 when not in use. The insulating film 202 plays a protective role in electrically isolating the TFT circuit module 201 and the top of the keycap 100. The protection plate 102 is made of a material with high strength, low density, and not easy to accumulate static electricity. When the graphics on the keycap 100 on the keyboard need to be modified, the entire mounting seat 200 is buckled on the keycap 100, and the TFT circuit module 201 is connected to the host computer through the external interface of the TFT circuit module. The development software configured on the host computer generates a driving signal of the TFT circuit module 201 to drive the TFT circuit module 201 to generate an electric field to drive the pixel particles of the electronic ink film 101 to move, thereby modifying the graphics on the keycap 100. After modifying the graphics on the keycap 100, the entire mounting seat 200 (TFT circuit module 201 and insulating film 202) can be removed from the keycap 100. At the same time, using an external drive circuit to change the screen display of the ink screen keyboard simplifies the product main body design and structure. In addition to the keyboard, it can be extended to all products in similar scenarios, such as the customization of the patterns of the shells of various products, as long as the corresponding external drive module is matched.

[0042] The ink screen keyboard system provided by the present invention removes the TFT circuit and ITO layer originally installed inside the key cap 100, and only sets the protective film 103, the electronic ink film 101 and the protective plate 102 inside the key cap 100, and uses the TFT circuit as an external driving module. The external driving module includes a mounting seat 200, a TFT circuit module 201 and an insulating film 202. The mounting seat 200 is used to install the TFT circuit module 201 and the insulating film 202. The TFT circuit module 201 is connected to the host computer, and the host computer generates a driving signal of the TFT circuit module 201 to drive the external driving module to change the graphics displayed on the key cap 100 to complete the customized setting of the keyboard key icon, thereby reducing the weight of the ink screen keyboard, and changing the built-in driving circuit to an external driving circuit, thereby avoiding the problem of difficulty in repairing damaged keyboard keys, and solving the technical problems of heavy weight and difficulty in repairing damaged keys of existing ink screen keyboards.

[0043] In one embodiment, the top of the key cap 100 is a curved structure, which is beneficial to improving the user's usage feel and the overall aesthetics of the key.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external driving module for driving an ink screen keyboard, characterized in that: It includes a mounting base, a TFT circuit module and an insulating film; The TFT circuit module and the insulating film are installed from top to bottom at the bottom of the mounting base, and the mounting base is used for detachable connection with the key caps of the ink screen keyboard keys; The TFT circuit module is used to drive the movement of positively and negatively charged particles in the electronic ink membrane of the ink screen keyboard; The insulating film is used to electrically isolate the TFT circuit module from the keycaps of the ink screen keyboard keys.

2. The external driving module for driving the ink screen keyboard according to claim 1, characterized in that: A limiting groove for sleeve-fitting the key cap is arranged at the bottom of the mounting seat, and the TFT circuit module and the insulating film are installed in the limiting groove from top to bottom.

3. The external driving module for driving the ink screen keyboard according to claim 2, characterized in that: The limiting groove is provided with an opening for matching the external interface of the TFT circuit module.

4. The external driving module for driving the ink screen keyboard according to claim 3, characterized in that: The external interface of the TFT circuit module is a USB interface.

5. The external driving module for driving the ink screen keyboard according to any one of claims 1 to 4, characterized in that: The external drive module also includes a host computer; The host computer is connected to the TFT circuit module; The host computer is used to generate a driving signal for the TFT circuit module, so that the TFT circuit module drives the positively and negatively charged particles of the electronic ink film to move.

6. An ink screen keyboard system, characterized in that: Comprising an ink screen keyboard and an external driving module for driving the ink screen keyboard according to any one of claims 1 to 5; The external driving module for driving the ink screen keyboard is detachably connected to the keycaps of the ink screen keyboard keys.

7. The ink screen keyboard system according to claim 6, characterized in that: The keycaps of the ink screen keyboard keys are installed with a protective film, an electronic ink film and a protective plate from top to bottom.

8. The ink screen keyboard system according to claim 6, characterized in that: The top of the keycap of the ink screen keyboard key is a structure with a transparent middle and opaque surroundings.

9. The ink screen keyboard system according to claim 6, characterized in that: The keycaps of the ink screen keyboard are made of a material with high transmittance, high strength, low density and not easy to accumulate static electricity.

10. The ink screen keyboard system according to any one of claims 6 to 9, characterized in that: The top of the keycaps of the ink screen keyboard keys are curved.

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