CN112684901A

CN112684901A - Screen key position identification display method and single-hand chord mobile keyboard thereof

Info

Publication number: CN112684901A
Application number: CN201911009325.5A
Authority: CN
Inventors: 王光达
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-04-20
Also published as: WO2021073594A1

Abstract

The invention creatively provides a display method of screen chord key position identification and a single-hand chord mobile keyboard thereof, provides a prompt image comprising a single key, a double-key chord and a triple-key chord key position fingering method, can be dynamically displayed on screens of various devices, an operator observes the prompt image and performs the device operation by blindly typing a chord keyboard with the size of a credit card consisting of more than 10 keys, breaks through the constraint of fixed and unchangeable letter type assignment of the existing keyboard, realizes universal scene-based visual operation, becomes a mobile keyboard without remembering, crossing platforms and having full functions, is fast and convenient, generates productivity at any time and any place, greatly improves the working and application scenes and efficiency, and has extremely high market value and wide application prospect.

Description

Screen key position identification display method and single-hand chord mobile keyboard thereof

Technical Field

The invention belongs to the technical field of keyboards and key marks thereof, and particularly relates to a method for dynamically displaying chord key position marks by a screen and a single-hand chord mobile keyboard suitable for the method.

Background

The chord keyboard technology, also called as a multi-key co-clicking keyboard technology, since birth in the last 60 years and development to the present, the technology can realize a great number of keys by using fewer keys, has small area and strong functions, but all the keys can be operated only by remembering the keys, the more the functions are realized, the more the keys need to be remembered, the more the will of an operator is violated, the operator falls into an embarrassing situation, the application and popularization of the chord keyboard technology are limited, and finally the chord keyboard technology is a small product and cannot be commercialized in a large scale.

As shown in fig. 1, the chord keyboard named frog is a chord keyboard, the key position labels are numerous and messy and are not easy to distinguish, and in the actual operation, the key position labels are easy to block the sight of the operator and are not easy to observe and operate.

The invention creatively provides a method for dynamically displaying chord keyboard key position operation fingering prompting images by a screen of a borrowing device, an operator observes and performs the touch typing operation of the chord keyboard under the key position fingering prompt given by the images, accordingly, the chord keyboard with a concise structure of 10 keys including nine lattices and/or 10 keys provided with a plurality of auxiliary functional keys is provided, and the mapping chord key position marking prompting images are dynamically displayed on the screen of the device and are provided with single key position marks, double key position marks and triple key position marks and are assisted with key position indication symbols, so that the operator can conveniently distinguish and identify each key position fingering method to perform the touch typing operation.

The method has the advantages that 1, the chord keyboard with the size of the credit card and only more than 10 keys has more than 60 or 120 keys; 2. the key position display rule can be learned in a short time, and the operation can be performed by hands; 3. the operator can do the quick and accurate touch typing operation of the chord keyboard by means of the key fingering prompt in the dynamic display prompt image of the screen of the equipment without remembering any key position; 4. the keyboard breaks through the limitation of the original keyboard that the key position is single and the assignment of the letter type is fixed, and the dynamic variable assignment of the all-round key position is realized, so that the keyboard becomes a chord keyboard which changes along with scenes, and the functions of the keyboard extend from limited to infinite.

The chord keyboard under the method has the advantages of mobility, strong all-round capability, quickness, accuracy, ergonomics, health promotion, cross-platform property, less materials, low cost, mature technology, easiness in use, capability of generating productivity anytime and anywhere and the like, can be used for the aspects of mobile phones, tablet computers, PCs, televisions, Iot remote controllers, equipment control and the like, becomes a cross-platform mobile keyboard, and has extremely wide application prospect and extremely high market value.

Disclosure of Invention

A chord keyboard key screen display method, chord keyboard can transmit the code of pressed key to the device, the device has display device and corresponding application program, its characteristic is, display the image of the said keyboard chord key mark with key position operation fingering hint dynamically on the screen of the device that the operator can observe, the operator carries on the blind typing operation of the said chord keyboard according to the said key position fingering hint in the image, the said device carries on corresponding reaction and or transformation with the hint image according to the scene and key position code received, the assignment of the said keyboard key and the said hint image.

The method is characterized in that a nine-square-lattice keyboard with assigned numbers 1-9 is adopted, namely, a key with a number of 0 is arranged below a left (right) row of keys assigned to the nine-square-lattice keyboard with the assigned numbers 1-9, or the outer side of the left (right) edge of the keyboard is arranged at a lower position to form a right (left) single-hand chord keyboard, keys in the nine-square lattice are not combined in the same row, and chord keyboard operation can be combined in different rows.

And keys with the number of 0 are arranged on the left side and the right side of the nine-square-grid keyboard to form a keyboard giving consideration to right and left single hands and chords.

In order to meet the operation habits of part of users, a plurality of auxiliary function keys are arranged in the area below the nine-grid keyboard and close to the key 0, and/or one auxiliary function key is arranged below the

key

9 or 7, wherein the auxiliary function keys comprise but are not limited to Shift, symbol (Sym), Ctrl, Alt, Fn, numbers and the like.

In a specific manner, the key 0(100) is positioned below the left (right) row of keys of the nine-grid keyboard, the auxiliary function keys Aa (10A) and 123(10B) are longitudinally arranged outside the key 0(100), the auxiliary function keys Ctrl and Sym are longitudinally arranged inside the key 0(100), the auxiliary function key Alt is positioned inside the auxiliary function keys Ctrl and Sym, and the auxiliary function key Fn is positioned below the right (left) row of keys of the nine-grid keyboard, so that the right (left) hand single-hand chord keyboard is formed.

A single-hand chord keyboard single key and double-key chord key position identification screen display method is characterized in that the single key and double-key chord key position identification are arranged in a rectangular picture frame which is divided into three layers by two separation lines, the single key identifications in the screen display are arranged according to the spatial position of each key of the Sudoku keyboard in a layered, transverse and longitudinal arrangement manner, the double-key chord key position identification combined between each key and three keys of the other row is arranged beside the layer where the former is positioned from top to bottom and is positioned between the two rows of key identifications, specifically, the double-key chord position identifications of a middle row of keys and 3 keys of a left row are arranged on the left side of the single key identification of the middle row of keys from top to bottom, and the double-key chord key position identifications of the middle row of keys and 3 keys of a right row are arranged on the right side of the single key identification of the middle row of keys from; the double-key chord key position marks of the left row of keys and the right row of 3 keys are arranged on the right side of the single-key marks of the left row of keys from top to bottom; meanwhile, the double-key chord key position identification combined by the two single keys on the same layer is horizontally aligned with the two single key identifications on the same layer (located in the same row), specifically, the single key identification of the upper layer key 123 is horizontally aligned with the double-key chord key position identification at the topmost end, the single key identification of the middle layer key 456 is horizontally aligned with the double-key chord key position identification in the middle, the single key identification of the lower layer key 789 is horizontally aligned with the double-key chord key position identification at the bottommost end, namely the single key identification of the nth layer is horizontally aligned with the double-key chord key position identification of the nth row of the layer, wherein n is less than or equal to 3; the character size of the single key mark is slightly larger than that of the double key and the chord key position mark; the effect of displaying the image is that a double key and a chord key position mark are positioned on a connecting line between single key marks of two keys participating in the double key combination.

In order to distinguish the double-key chord key position, a key position indicating graph is arranged between an upper group of double-key chord key position marks and a lower group of double-key chord key position marks, the hypotenuse of the graph points to the double-key chord key position mark of the row with the farthest distance and the other row of single-key chord key position marks which participate in combining the double-key chord key position, specifically, a key position indicating graph which spans the upper and lower groups of separation lines and is vertically aligned with the single-key chord key position marks is respectively arranged between the single-key position marks of the

keys

2 and 5 and the

keys

5 and 8, 2 hypotenuses above the key position indicating graph respectively point to the single-key position marks of the

keys

7 and 9, and 2 hypotenuses below the key position indicating graph respectively point to the single-key position marks of the

keys

1 and 3 and is used for indicating the; on the right side between the single key position marks of

keys

1 and 3 and

keys

3 and 7, a key position indication graph is respectively arranged, the oblique side above the key position indication graph points to the single key position mark of key 9, and the oblique side below the key position indication graph points to the single key position mark of key 3, and the key position indication graph is used for indicating the up-and-down combination with the maximum difference of the double keys and the chord key positions between the keys in the edge row. The method gives the direction of the chord key position of the double key with the largest change, thereby, the fingering of each group of double keys and chord key positions is revealed by matching the horizontal alignment of the chord key position of the double key in the same row and the identification of the two single key positions in the row, so as to be convenient for operation.

After finishing the double-key chord key position identification, setting a three-key chord key position identification in the screen image display, selecting a key from the middle row of keys and the right row of keys of the nine-palace-lattice keyboard according to the pressing position, connecting the points of the two selected key positions into a whole by using a connecting line to form a graphic symbol, combining the graphic symbol with the left row of keys 147, and placing the combined three-key chord key position function identification name on the left row of keys corresponding to the left side of the graphic symbol from top to bottom according to the position of each key on the nine-palace-lattice keyboard so as to form a group of three-key chord key position identifications; each group of three-key chord key mark is arranged in a rectangular picture frame divided into three layers by two separation lines according to the upper and lower positions of the middle-column key in the three-key chord key mark, and each layer is provided with three groups of three-key chord key marks under a graphic symbol formed by combining the middle-column key and the right-column three keys.

Furthermore, in the graphic symbol indicating the orientations of the middle-column keys and the right-column keys, the part representing the middle-column keys is larger in size, and the part representing the middle-column keys is smaller in size.

And arranging the display image with the single-key and double-key chord key identification and the display image with the triple-key chord key identification together transversely or longitudinally, adding an information bar above the display image, and displaying the information bar on the screen. And the images are combined into a complete display image system containing single-key, double-key chord and triple-key chord key position identifications.

Therefore, according to the application scene of the equipment, the key positions of the chord keyboard are dynamically assigned, the assigned key positions are also dynamically displayed on the screen in a linkage manner, and objects assigned by the keys include but are not limited to letters, symbols, numbers, expressions, files, folders, file transmission, search, online shopping, videos, audios, positioning, navigation, red packages, images, business cards, code scanning, time, schedules, program command menus, payment, websites, setting, switching and the like.

Furthermore, in an English letter input scene, the corresponding relations between single-key letters and the keyboard key numbers are set as t-1, o-2, r-3, e-4, h-5, s-6, a-7, i-8, n-9 and space-0, the key 0 is also a Shift key, and corresponding capital letters can be input by pressing the letter key positions at the same time; setting the double-key chord key position letters and the key numbers of the keyboard chord key position as d-21, p-23, b-24, c-26, j-27, q-29, m-51, w-53, u-54, f-56, y-57, k-59, z-83, x-84, v-86, g-87, l-89, (,/. in case of capitalization) -18 has the double-key chord key position of the middle-column key; and double-key chord function keys such as Enter, Backspace, Delete, Insert and the like are arranged on the edge-column double-key chord function keys.

The functional conversion key positions of the CapsLock, the number NumLock, the symbol (Sym), the Ctrl, the Alt, the Fn and the like are arranged on the side-column double-key chord key position and/or the triple-key chord key position. Instead of directly arranged auxiliary function keys, only 10 keys are used for realizing corresponding conversion.

And when the keys of the keyboard are pressed to enable the equipment to enter a new scene and/or application program, the assignment of the keys of the keyboard and key position identification thereof display corresponding functions and/or characters and/or commands for automatic conversion.

When some objects of the device display interface are selected by a mouse or other means, the corresponding commands or functions are invoked to the keys of the keyboard.

The key position of the keyboard can present tree-shaped data and search correspondingly, and the double-key chord key position beside the upper-level object of the single-key position can be set as the lower-level object.

Setting the key 0 as a most necessary function conversion key in each scene, including but not limited to a Shift key in a letter input state, and converting the lower case into the upper case after pressing; the selected key is in the searching state, and the opened object is converted into the selected object after being pressed; the number keys are used in the Chinese character input state, and the character input is converted into character selection after pressing, and the like.

The

display images

22, 23 and the information bar 21 and the text or symbols therein are different in color and/or ground color depending on the scene or state in which the device is located.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

FIG. 1 shows chord keyboard and key position labels of frogpad frog.

Fig. 2 shows the configuration of the chord keyboard.

Fig. 3 shows the area where the chord keyboard auxiliary function keys are provided.

Fig. 4 shows a configuration of the chord key provided with the auxiliary function key.

Fig. 5 shows the single key and the double key and the chord key position identification displayed on the screen of the device.

Fig. 6 shows an image of a three-key and chord key identification displayed on the screen of the device. .

Fig. 7 shows an image of the chord key mark displayed on the screen of the mobile phone.

Fig. 8 shows the desktop image of the mobile phone identified by the chord key position.

Fig. 9 shows an Excel command menu image identified by the chord key position.

FIG. 10 shows an image of the chord key identification at the time of command invocation by Excel selection of an object.

Fig. 11 shows an image of the chord key identification in the tree data search process.

In fig. 5, 6, 8, 9, 10, 11, the double-key and triple-key chord key positions adopt grouping numbers, such as Tab (2213), Esc (2216), Backspace (2219) in fig. 5, which are labeled as 221{3, 6, 9.

Detailed Description

In the first embodiment, as shown in fig. 2, in order to simplify and facilitate touch typing by an operator, a nine-grid keyboard with assigned numbers 1 to 9 is adopted, that is, a key with a number of 0 is arranged at a position (100B) below a left (right) row of keys assigned to the nine-grid keyboard with the numbers 1 to 9, or at a position (100A) below the outer side of the left (right) edge of the keyboard, so that the right (left) one-handed chord keyboard is formed, and keys in the nine-grid keyboard are not combined in the same column, and the chord keyboard with different columns can be combined.

The patent creatively provides a double-key and triple-key chord key position identification display method, which enables an operator to use a simple chord keyboard and make blind typing possible according to prompts. The keys in the squared figure are not combined in the same column, and the chord keyboard operation with different columns combined is performed by taking a right-hand keyboard as an example, namely, the index finger presses the key 147, the middle finger presses the key 258, the ring finger presses the key 369, and the thumb presses the key 0.

A chord keyboard key screen display method, chord keyboard can transmit the code of pressed key to the device, the device has CPU, memory device and display device, contain the corresponding application program, its characteristic is, display the said keyboard chord key image of the mark with key operation fingering hint dynamically on the screen of the device that the operator can observe, the operator carries on the blind typing operation of the said chord keyboard according to the said key fingering hint in the image, according to the scene and key code received, the assignment of the said keyboard key makes corresponding reaction and or transform with the hint image. The operator observes the screen of the device which dynamically displays the chord key position label prompt image by eyes, such as a mobile phone, a tablet personal computer, a PC, a television, a projection, a VR and the like, and performs touch typing operation on the chord keyboard according to the chord key position label rule and the key position operation fingering, wherein the keyboard and the display device can be integrated, but under more conditions, the keyboard and the display device are separated, and the keyboard is independently placed on a table top, held by hands or hung on the body of the operator for operation through wired or wireless connection.

In this embodiment, as shown in fig. 2, the keyboard is a right-hand single-hand chord keyboard comprising the nine-grid keyboard and keys 0 at a position (100B) below the left row of keys, and the present invention provides a method for displaying a single-hand chord keyboard and a double-key chord key identifier on a screen of a dynamic display device for key identifier mapping on the keyboard, wherein the single-hand chord keyboard and the double-key chord key identifier are arranged in a rectangular frame partitioned into three layers by two partition lines, the single-key identifiers in the rectangular frame in the screen display are arranged in layers according to the spatial orientation of the nine-grid keyboard, and the double-key chord key identifiers combined between each key and three keys in another row are arranged beside the same layer of the single-key identifiers from top to bottom and between two rows of single-key identifiers, specifically, the double-key chord key identifiers of the middle row of keys and 3 keys in the left row of the middle row of key identifiers are arranged from top to bottom The double-key chord key position marks of the middle-column keys and the right-column 3 keys are arranged on the right side of the single-key marks of the middle-column keys from top to bottom; the double-key chord key position marks of the left row of keys and the right row of 3 keys are arranged on the right side of the single-key marks of the left row of keys from top to bottom; as shown in fig. 5, the keyboard is in an english input state, the keys (in fig. 2) are in correspondence with the single key identifiers, namely, the upper layer key 1(101) -t (221), the key 2(102) -o (222), the key 3(103) -r (223), the middle layer key 4(104) -e (224), the key 5(105) -h (225), the key 6(106) -s (226), the lower layer key 7(107) -a (227), the key 8(108) -i (228), and the key 9(109) -n (229), the middle layer single key identifier h (225) in the image is a double key chord key identifier m (2251), u (2254), y (2257) arranged from top to bottom on the left side, and the left row 3 single key identifiers are respectively a double key chord key identifier t (221), e (224) and a (227), double-key chord key position identifications w (2253), f (2256) and k (2259) which are arranged on the right side of the middle-column single-key letter identification h (225) from top to bottom are respectively double-key chord key positions combined with the right-column 3 key single-key letter identifications r (223), s (226) and n (229), double-key chord key position identifications PgUp (2243), PgDn (2246) and Ins (2249) which are arranged on the right side of the middle-layer left-column single-key letter identification e (224) from top to bottom are respectively double-key chord key positions combined with the right-column 3 key single-key letter identifications r (223), s (226) and n (229), the last 225two digits of the double-key chord key position numbers correspond to key numbers participating in combination, if w (3) is a chord key position formed by combining a key 5 and a key 3, and Ins (2249) is a chord position formed by combining a key 4 and a key 9; meanwhile, the double-key chord key position identification of the combination of the two single keys on the same layer is horizontally aligned with the two single key identifications on the same layer (in the same row), specifically, the single key identification of the upper layer key 123 is horizontally aligned with the double-key chord key position identification at the topmost end, the single key identification of the middle layer key 456 is horizontally aligned with the middle double-key chord key position identification thereof, the single key identification of the lower layer key 789 is horizontally aligned with the double-key chord key position identification at the bottommost end, namely, the single key mark of the nth layer is horizontally aligned with the double key mark and the chord key mark of the nth row of the layer, wherein n is less than or equal to 3, if the upper single-key letter single-key letters o (222) and t (221) are horizontally aligned with the identifier of the topmost double-key chord key position d (2221) (in the same row), that is, the single key identifier of the key 123 is horizontally aligned with the double-key chord key identifier at the topmost end, and the double-key chord key d (2221) is the only chord key combined with the single key on the same layer of the left row of keys by the single-key letter o (222); similarly, if the single-key letter t (221) and the single-key letter r (223) are also horizontally aligned with (in the same row) the identifier of the topmost double-key chord key Tab (2213), the single-key identifier of the key 456 is horizontally aligned with the identifier of the middle double-key chord key, and if the single-key letter h (225) and the single-key letter s (226) are horizontally aligned with the identifier of the middle double-key chord key f (2256); the single key identification of key 789 is horizontally aligned with the double key and chord key identification at the bottom thereof, such as the single key letter i (228) and the single key letter n (229) are horizontally aligned with the double key and chord key identification at the bottom thereof l (2289); the character size of the single key mark is slightly larger than that of the double key and the chord key position mark, for example, the character size of the single key letter marks t (221), o (222) and r (223) is larger than that of the double key chord key position marks d (2221), p (2223) and Tab (2213); observing the display image, the effect is that one double key and the chord key position mark are positioned on the connecting line between the single key marks of the two keys participating in the double key combination.

In order to distinguish the double-key chord key position, a key position indicating graph is arranged between the upper and lower double-key chord key position marks, a key position indicating graph is arranged between the double-key chord key position mark of the row with the hypotenuse pointing to the farthest difference with the single-key mark and another row of single-key position marks participating in the double-key chord key position of the combination, specifically, between the single-key position marks of the keys 2(222) and 5(225), 5(225) and 8(228), a key position indicating graph (222A and 228A) which spans the upper and lower partition lines and is vertically aligned with the single-key position marks is respectively arranged, 2 hypotenuses above the key position indicating graphs point to the single-key position marks of the

keys

7 and 9, 2 hypotenuses below the key position indicating graphs point to the key position marks of the

keys

1 and 3 respectively, and is used for indicating the upper and lower combinations with the maximum difference between the double-key position and the chord key position of, a key position indication graph (222A) between a top middle column key o (222) and a middle column key h (225), wherein four oblique sides in non-horizontal directions point to keys t (221), r (223), a (227) and n (229) at four corners of the keyboard respectively, two upper oblique sides above a parting line (2225) point to a (227) and n (229) respectively through the key o (222), and indicate chord key positions of j (2227) and q (2229) which are combined by the key o (222) and a double key thereof respectively, for example, the oblique side (222A9) is used for indicating that the chord key position of q (2229) is combined by the key o (222) and n (229), the key position indication graph (228A) between the key h (225) and the key i (228) is used for indicating that the chord key position of q (2229) is combined by the key o (222) and n (229), and the key position indication graph (228) between the key h (225) and the key h (225) is not horizontal, n (229), wherein the two upper sloping sides above the separation line (2225) are respectively pointed to a (227) and n (229) by the key i (225), respectively indicating the chord key positions of the key i (222) and the double key combination j (2257) and k (2259) thereof, the chord key position such as the hypotenuse (228a9) for indicating k (2259) is formed by combining the keys h (225) and n (229), and thus, with the dividing lines (2225) and (2258) as boundaries, the oblique sides of the upper half of the two key position indication diagrams 222A and the lower half of 228A are used to indicate the double key and chord key positions of the middle column keys o (222) and i (228) combined with the left and right columns of keys, respectively, and the oblique sides of the lower half of the key position indication diagrams 222A and the upper half of 228A are used to indicate the double key and chord key positions of the middle column keys h (225) combined with the left and right columns of keys, more precisely, the position of the double-key and chord key position identification of the single-key combination between the layers with the largest difference is indicated; on the right side between the single-key-position indications of

keys

1 and 3, and

keys

3 and 7, there are respectively provided a key-position indication pattern (221A and 227A) whose upper oblique side is directed to the single-key-position indication of key 9 and whose lower oblique side is directed to the single-key-position indication of key 3 for indicating the upper and lower combinations of the double-key-row chord key-position with the largest difference between the keys in the edge columns, so that, with the dividing lines (2225) and (2258) as boundaries, the oblique sides of the upper half portion of two key-position indication patterns 221A and the lower half portion of 227A are respectively used for indicating the double-key-row chord key-position of the combination of keys in the left column t (221) and a (227) and the right column, and the oblique sides of the lower half portion of two key-

position indication patterns

221A and 227A are used for indicating the double-key-row chord key-position of the combination of keys in the left column e (224) and the right column, more precisely, for indicating the, the chord key for indicating the delete key (2219) as the sloping side (221a9) is composed of the combination of the keys t (221) and n (229), and the chord key for indicating the Ins key (2249) as the sloping side (227a9) is composed of the combination of the keys e (224) and n (229). The method gives the direction of the chord key position of the double bond at the layer with the largest difference, thereby matching the double bond chord key position of the single bond at the same layer with the horizontal alignment of the marks of the single bond key positions at the two same layers, and prompting the fingering of the double bond chord key positions of each group for convenient operation.

After the setting of the double-key chord key position identification is finished, setting the three-key chord key position identification in the screen image display, selecting one key from the middle-column key and the right-column key of the nine-palace-lattice keyboard according to the pressing position, connecting the points of the two selected key positions into a whole by using a connecting line to form a graphic symbol, combining the graphic symbol and the left-column key 147, and placing the combined three-key chord key position function identification name from top to bottom at the position of the left-column key corresponding to the left side of the graphic symbol according to the position of each key on the nine-palace-lattice keyboard so as to form a group of three-key chord position identifications; each group of three-key chord key mark is arranged in a rectangular picture frame which is divided into three layers by two separation lines according to the upper and lower positions of the middle-column key in the three-key chord key mark, and each layer is provided with three groups of three-key chord key marks under the graphic symbol formed by combining the middle-column key and the three right-column keys. As shown in fig. 6, the 3 graphic symbols (2323), (2326) and (2329) formed by the key 2 and the right row of keys 369 are graphic symbols formed by connecting the key 2 and the right row of

keys

3, 6 and 9, the left side of each graphic symbol is provided with 3 chord key function identifier names arranged from top to bottom, which respectively represent key positions formed by combining the double-key chord key represented by the graphic symbol and the left row of keys 147, such as the triple-key chord key Ctrl (23234), which is the combined key position of the graphic symbol (2323) and the key 4 formed by the key 2 and the key 3, so the triple-key chord key Ctrl (23234) is the chord key formed by combining the three keys of the key 2, the key 3 and the key 4; similarly, the middle layer is the 3 graphic symbols (2356), (2353) and (2359) of the key 5 and the right row of keys 639, the left side is added with 3 chord key function identifier names representing the combination of the left row of keys 147, the lower layer is the 3 graphic symbols (2380), (2386) and (2383) of the key 8 and the right row of keys 963, and the left side is added with 3 chord key function identifier names representing the combination of the left row of keys 147, for example, the triple-key chord key-chat (23864) is the combination key of the graphic symbol (2386) and the key 4, so the triple-key chord key chat (23864) is the chord key formed by combining the three keys of the key 8, the key 6 and the key 4; the upper and lower layers are separated by two separation lines (232C and 235C).

Furthermore, in the graphic symbol indicating the orientations of the middle-column keys and the right-column keys, the part representing the middle-column keys is larger in size, and the part representing the right-column keys is smaller in size. As shown in the enlarged 23 image at the lower part of fig. 7B, the left part of the upper layer graphic symbol (2323) (2326) (2329) represents that the part of the middle column key 2 is larger in size, the right part represents that the right column key 369 is smaller in size, similarly, the middle layer graphic symbol (2353) (2356) (2359), the left part of the lower layer graphic symbol (2389) (2386) (2383) corresponds to that of the

middle column keys

5 and 8, and is larger in size, and the right part represents that the right column key 369 is smaller in size; thus, the positions of the keys in the middle row in the graphic symbol are highlighted, and the keys are more conveniently distinguished.

And arranging the display image with the single-key and double-key chord key identification and the display image with the triple-key chord key identification together transversely or longitudinally, adding an information bar above the display image, and displaying the information bar on the screen. And the images are combined into a complete display image system containing single-key, double-key chord and triple-key chord key position identifications. As shown in fig. 7, it is the displayed image of the chord key identifier displayed on the screen 2 of the mobile phone, as shown in fig. 7A, the lower part of the screen 2 of the mobile phone is transversely arranged and displayed with the displayed image 22 of the single key and the double key chord key identifier on the left lower part, the displayed image 23 of the triple key chord key identifier on the right lower part, the bar above the two is the information bar 21, the Chinese character en in the information bar 21 indicates that the image is in the english input state; as shown in fig. 7B, the left portion of the screen 2 of the mobile phone displays the images in a longitudinal arrangement, wherein the middle position is a display image 22 of a single key and a double key chord key identifier, the upper horizontal bar is an information bar 21, the lower horizontal bar is a display image 23 of a triple key chord key identifier, and the character en-a in the information bar 21 indicates that the image is in a capital english letter input state.

Thus, the display image correspondingly comprises all the key positions within the keyboard three-key concurrent click: 9 single key marks in the display image 22, 27 double key chord key mark and 27 triple key chord key mark in the

display image

23, 9+27+27 is 63 key positions in total, and the assignment of the 63 key positions can be changed when the key 0 is pressed, so that the key positions as many as 63X2 as 126 can be realized, namely the keyboard which is only a credit card in size and 10 keys is realized through the operation of multi-key parallel striking, and the key positions are not required to be remembered at all, the key position rule is learned in a short time, and then the key position operation fingering prompt dynamically displayed on a screen is observed, and the single key, the double key chord key mark and the triple key chord key mark respectively correspond to the single key or the double key and the triple key parallel striking of the keyboard, or the key in the nine-grid or the single key or the triple key and the triple key parallel striking is carried out when the key 0 is pressed, and the chord keyboard can be operated by touch striking.

In an English letter input scene, setting the corresponding relations of single-key letters and the keyboard key numbers as t-1, o-2, r-3, e-4, h-5, s-6, a-7, i-8, n-9 and space-0, wherein the key 0 is also a Shift key, and corresponding capital letters can be input by pressing the letter key positions at the same time; setting double-key chord key letters and functions as d-21, p-23, c-24, b-26, j-27, q-29, m-51, w-53, u-54, f-56, y-57, k-59, z-83, x-84, v-86, g-87, l-89, (,/. in case of capitalization) -81 and having double-key chord key positions of middle-column keys; and double-key chord function keys such as Enter, Backspace, Delete, Insert and the like are arranged on the edge-column double-key chord function keys. As shown in fig. 5, the corresponding relationship between the key (number) and the letter key position (number) is key 1(101) -t (221), key 2(102) -o (222), key 3(103) -r (223), key 4(104) -e (224), key 5(105) -h (225), key 6(106) -s (226), key 7(107) -a (227), key 8(108) -i (228), key 9(109) -n (229), key 0(100) -space (not labeled); the key 0 is also a Shift key, and corresponding capital letters can be input by pressing the letter key position simultaneously; setting the double keys with middle column keys and chord keys as letters and symbols, wherein the corresponding relations between chord keys (numbers) and letter keys (numbers) are 21-d (2221), 23-p (2223), 24-c (2224), 26-b (2226), 27-j (2227), 29-q (2229), 51-m (2251), 53-w (2253), 54-u (2254), 56-f (2256), 57-y (2257), 59-k (2259), 83-z (2283), 84-x (2284), 86-v (2286), 87-g (2287), 89-l (2289), 81- (/. in case of capitalization) (2281); the double-key chord function keys such as Enter, Backspace, Delete, Insert and the like are arranged on the edge-column double-key chord function keys, as shown in figure 5, and the edge-column double-key chord function keys are 79-Enter (2279), 19-Backspace (2219), 13-Delete (2273) and 49-Insert (2249).

Furthermore, the left side and the right side of the nine-square-grid keyboard are respectively provided with a key with the number of 0, so that the keyboard with the chord of the right hand and the left hand is formed. As shown in fig. 2, a key (100B) and a key (100C) with a number of 0 are arranged on the left side and the right side below the nine-palace-lattice keyboard, wherein the key (100B) with the number of 0 and the nine-palace-lattice keyboard can form a right-hand chord keyboard, and the key (100C) with the number of 0 and the nine-palace-lattice keyboard can form a left-hand chord keyboard, so that the chord keyboard with both left and right single hands is formed.

In the second embodiment, in order to meet the operation habits of some users, a plurality of auxiliary function keys are arranged in the area below the keyboard with the assigned numbers of 1-9 and the nine-grid pattern and near the key 0, and/or an auxiliary function key is arranged below the

key

9 or 7, wherein the auxiliary function keys include but are not limited to Shift, symbols (Sym), Ctrl, Alt, Fn, numbers and the like.

As shown in fig. 3, a plurality of auxiliary function keys are arranged in a region below the nine-grid keyboard and close to the key 0, and the two conditions are divided into two conditions, wherein in the region 1A, the position 100A is arranged as a key 0, a plurality of auxiliary function keys are arranged in the inner side of the key 0, and or, an auxiliary function key is arranged below the

key

9 and 1B; secondly, in the area 1A, a key 0 is arranged at the position 100B, and a plurality of auxiliary function keys are arranged on the left side and the right side of the key 0, and/or an auxiliary function key is arranged at the position 1B below the key 9;

in a specific manner, the key 0(100) is positioned below the left (right) row of keys of the nine-grid keyboard, the auxiliary function keys Aa (10A) and 123(10B) are longitudinally arranged outside the key 0(100), the auxiliary function keys Ctrl and Sym are longitudinally arranged inside the key 0(100), the auxiliary function key Alt is positioned inside the auxiliary function keys Ctrl and Sym, and the auxiliary function key Fn is positioned below the right (left) row of keys of the nine-grid keyboard, so that the right (left) hand single-hand chord keyboard is formed. As shown in fig. 4, the key 0(100) is located under the left row of keys of the nine-grid keyboard, the auxiliary function keys Aa (10A) and 123(10B) are longitudinally arranged outside the key 0(100), the auxiliary function keys Ctrl and Sym are longitudinally arranged inside the key 0(100), the auxiliary function key Alt is located inside the auxiliary function keys Ctrl and Sym, and the auxiliary function key Fn (10F) is located under the right row of keys of the nine-grid keyboard. The operation mode is the same as that of the existing keyboard, the function auxiliary key is pressed and not loosened, the keyboard can provide corresponding key positions, such as a function auxiliary key Aa (10A) -capital, a 123(10B) -number, a Ctrl-shortcut key, a Sym-symbol and the like, the input can be carried out according to the prompt of the screen key positions, then the function auxiliary key is loosened, and the keyboard returns to the original state.

In the first embodiment, the functional transformation keys such as CapsLock, NumLock, symbol (Sym), Ctrl, Alt, Fn, and numeral may be disposed on the double-key chord key and/or the triple-key chord key of the edge row. Pressing the entity function auxiliary key beside the key 0 does not loosen for different operations, after inputting the function conversion key position on the chord key position, the keyboard provides corresponding key position once, and automatically returns to the original state after once operation, or the keyboard enters the state after conversion for operation, and the keyboard can return to the original state only after pressing the 'return' key position or pressing the original key position again, and the operation has the same action with the CapsLock and NumLock of the existing keyboard; thus, instead of directly arranged auxiliary function keys, only 10 keys are used for realizing corresponding conversion. As shown in fig. 5, the side column chord key Aa (2276) is a functional key for converting capital and small letters of english, and as shown in fig. 6, the functional conversion chord key has three key chord keys such as a symbol (23231), Ctrl (23234), Alt (23264), a number (23564), and a middle/en (23897).

Third embodiment, as shown in fig. 2, the present embodiment adopts a right (left) hand single-hand chord keyboard composed of the nine-grid keyboard and a key 0 at a lower position (100A) outside the left (right) side, and is connected with a mobile phone or a PC by wireless and can transmit a code of a pressed key to the device. The keyboard can dynamically perform corresponding assignment on the key positions of the chord keyboard according to the application scene of the equipment, the assigned key positions are also dynamically displayed on the screen in a linkage manner, and objects of the key assignment include but are not limited to letters, symbols, numbers, expressions, passwords, files, folders, file transmission, searching, online shopping, videos, audios, positioning, navigation, red packages, images, business cards, code scanning, time, schedules, application programs, command menus, payment, websites, settings, switching and the like. The method of the invention breaks through the restriction of inputting single and fixed letter types such as characters, shortcut keys and pinyin of the original keyboard, the key positions of the keyboard and the key position marks displayed on the corresponding screen are dynamically variable, namely, the key positions of the chord keyboard are dynamically assigned according to the application scene of the equipment, the assigned key positions are also dynamically and interlockingly displayed on the screen, the key assignment objects include but are not limited to letters, symbols, numbers, expressions, passwords, databases, files, folders, file transmission, search, online shopping, videos, audios, positioning, navigation, red packages, images, business cards, code scanning, time, schedules, application programs, command menus, payment, web addresses, setting, switching and the like, as shown in fig. 5, the input state of english letters or chinese pinyin is, as shown in fig. 8, the state of the keyboard mapping the chord keys on the desktop of the mobile phone.

And when the keys of the keyboard are pressed to enable the equipment to enter a new scene and/or application program, the assignment of the keys of the keyboard and key position identification thereof display corresponding functions and/or characters and/or commands for automatic conversion. As shown in fig. 8, when the mobile phone is powered on, the keyboard maps the state of the chord key on the desktop, such as single key identifiers like a camera (222), a video (224), a chat (225), and the like, and double key chord key positions like a map (2221), a translation (2224), weather (2227), payment (2253), office (2256), a drawing (2259), and the like; as shown in fig. 9A, when the device opens Excel, the keyboard maps the state of the chord key of the Excel command menu.

It is necessary to supplement that the displayed image of the double-key chord key position identification can be horizontally aligned with the double-key chord key position identification of the nth row of the layer by means of the single-key identification of the nth layer, wherein n is less than or equal to 3; a double key chord key mark is positioned on the connecting line between the single key marks of two keys participating in the double key combination, the key position indication graph in claim 7 is not needed, and the good key position fingering prompt can also be given, as shown in fig. 8, no key position indication graph is displayed in the image, the auxiliary line 221B6 points to the calendar (226) from the diagram library (221) through the chord key mark-middle/en (2216), which indicates that a double key chord key mark is positioned on the connecting line between the single key marks of two keys participating in the double key combination, and similarly, the chord key mark-return (2219) is positioned on the connecting line-auxiliary line 221B6 between the diagram library (221) between the single key marks of two keys participating in the double key combination and more (229); as another example, chord key navigation (2286) and search (2283) are located on the connecting lines between the single key identifiers of the two keys of the game (228) and calendar (226) and music (223), i.e., the auxiliary lines 228B6 and 228B3, respectively.

No matter software or scenes such as drawing, office and the like, after some objects are selected, the required command range can be narrowed down and the pertinence is stronger, and after some objects on the display interface of the equipment are selected by a mouse or other modes, corresponding commands or functions can be called to the keys of the keyboard. As shown in fig. 10A, when the device runs Excel, a mouse is used to select a plurality of cells in the 25 region, and as shown in fig. 10B, corresponding commands for the selected cells are called to the keys of the keyboard, instead of the menu command of Excel as shown in fig. 9A, so as to reduce the time for searching commands and improve the efficiency.

The multilevel directory structure in the file management, the command menu multilevel command and the like all adopt tree data with a hierarchical structure defined by a branch relation, the key positions of the keyboard can present the tree data and carry out corresponding search, and the double-key chord key position beside the upper-level object of the single-key position can be set as the next-level object. As shown in fig. 11A, single keys a (221), B (222), C (223), E, F, G, H, etc. in the key bit image are identified as folders and/or menus with lower level objects, More peer objects can be opened by More than one key, the single keys identify chord key positions a1(2213), a2(2216), A3(2219) next to a (221) as the next level objects of a (221), and similarly, the single keys identify chord key positions E1(2253), E2(2256), E3(2259) next to E (225) as the next level objects of E (225), and the next level objects can be directly selected avoiding the upper level folders; as shown in fig. 11B, after B (222) is pressed in fig. 11A, the state is entered into the next level directory, and similarly, the chord key positions B81(2253), B82(2256) and B83(2259) next to the single key identifier B8(225) are next level objects of B8 (225). As shown in fig. 9A, it is an Excel command menu, in which review (221), start (222), formula (223), view (224), insert (225), data (226), help (227), page layout (228), format (229) single keys are identified as one-level menu commands, middle and right column single keys identify the left double-key and chord key position for this single key to identify the next-level command, such as the next-level command with font (2221), align (2224), number (2227) as start (222), style format (2283), style (2286), arrangement (2289) as format (229), and the common commands of newly building (2213), separately storing (2243), closing (2279) are set on the side key double-key and chord key positions; as shown in fig. 9B, it is the menu of the start (222) command entered after pressing the key 2 in the state shown in fig. 9A, where the single keys such as clipboard (221), font (222), alignment (223), number (225), style (226), cell (228), edit (229) are identified as the second level menu commands, the single keys of the middle and right columns identify the left double key and the chord key position as this single key identifies the next level command, such as the next level command with font (2221), alignment (2224), number (2227) as start (222), the style format (2283), typestyle (2286), arrangement (2289) and the like as the format (229); the keyboard searching capability is very strong, taking 63 keys as an example, 25 ten thousand can be found after 3 times of searching, and 63X63X63 is 250047.

Setting the key 0 as a most necessary function conversion key in each scene, including but not limited to a Shift key in a letter input state, and converting the lower case into the upper case after pressing; the selected key is in the searching state, and the opened object is converted into the selected object after being pressed; the number keys are used in the Chinese character input state, and the character input is converted into character selection after pressing, and the like. As shown in fig. 7A, the input state of lower case English letters is shown, and as shown in fig. 7B, the input state of lower case English letters is shown as upper case English letters after the key 0 is pressed; as shown in fig. 11A and B, the next file opened by pressing key B (222) in the state of fig. a, when key 0 is pressed and B4(221) is not pressed any more, the folder B4 is selected instead of being opened, and the command for folder is called to the keyboard, and the commands for folder operation such as copy, cut, delete, transfer, send, rename, compress, share, etc. are set at the corresponding keys, similarly to the state of fig. 10B.

The

display images

22, 23 and the information bar 21 and the text or symbols therein are different in color and/or ground color depending on the scene or state in which the device is located. As shown in fig. 5 and 9A, the single-key symbols are different in font and background, the single-key symbols t (221) and o (222) in fig. 5 are black characters with white background, and the single-key symbols of review (221) and start (222) in fig. 9A are white characters with black background.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A chord keyboard key screen display method, chord keyboard can transmit the code of pressed key to the device, the device has display device and corresponding application program, its characteristic is, display the image of the said keyboard chord key mark with key position operation fingering hint dynamically on the screen of the device that the operator can observe, the operator carries on the blind typing operation of the said chord keyboard according to the said key position fingering hint in the image, the said device carries on corresponding reaction and or transformation with the hint image according to the scene and key position code received, the assignment of the said keyboard key and the said hint image.

2. A single-handed chord keyboard for implementing the method as claimed in claim 1, wherein a key with number 0 is provided at a position below the left (right) row of keys assigned to the number 1-9 of the nine-palace grid keyboard, or at a position below the outer side of the left (right) edge of the keyboard, so as to form a right (left) single-handed chord keyboard, and the keys in the nine-palace grid are not combined in the same row, so that the chord keyboard can be combined in different rows.

3. The single-hand and chord keyboard as claimed in claim 2, wherein a key with number 0 is arranged on both left and right sides of the squared figure keyboard to form a right-left single-hand and chord keyboard.

4. The single hand and chord keyboard as claimed in claim 2, wherein under the squared figure keyboard, in the area close to key 0, several auxiliary function keys are provided, and or, under key 9 or 7, one auxiliary function key is provided, these auxiliary function keys include but are not limited to Shift, symbol (Sym), Ctrl, Alt, Fn, number, etc.

5. The single-hand chord keyboard according to claim 2 and 4, wherein the key 0(100) is located under the left (right) column of keys of the nine-grid keyboard, the auxiliary function keys Aa (10A) and 123(10B) are longitudinally arranged at the outer side of the key 0(100), the auxiliary function keys Ctrl and Sym are longitudinally arranged at the inner side of the key 0(100), the auxiliary function key Alt is located at the inner side of the auxiliary function keys Ctrl and Sym, and the auxiliary function key Fn is located under the right (left) column of keys of the nine-grid keyboard, thereby forming the right (left) hand single-hand chord keyboard.

6. The method for displaying the screen with the single key and the double keys as the chord key position identifiers as claimed in claims 1 and 2, it is characterized in that the single key and the double key and the chord key position marks are arranged in a rectangular picture frame which is divided into three layers by two separation lines, the single key marks in the screen display are arranged according to the spatial direction of each key of the Sudoku keyboard in a layered, horizontal and longitudinal arrangement and alignment way, arranging the double-key chord key position marks combined between each key and the three keys in the other row beside the layer where the key is positioned from top to bottom and between the two rows of key position marks, specifically, arranging the double-key chord key position marks of the middle row of keys and the left row of 3 keys on the left side of the middle row of key position marks from top to bottom, and arranging the double-key chord key position marks of the middle row of keys and the right row of 3 keys on the right side of the middle row of key position marks from top to bottom; the double-key chord key position marks of the left row of keys and the right row of 3 keys are arranged on the right side of the single-key marks of the left row of keys from top to bottom; meanwhile, the double-key chord key position identification combined by the two single keys on the same layer is horizontally aligned with the two single key identifications on the same layer (located in the same row), specifically, the single key identification of the upper layer key 123 is horizontally aligned with the double-key chord key position identification at the topmost end, the single key identification of the middle layer key 456 is horizontally aligned with the double-key chord key position identification in the middle, the single key identification of the lower layer key 789 is horizontally aligned with the double-key chord key position identification at the bottommost end, namely the single key identification of the nth layer is horizontally aligned with the double-key chord key position identification of the nth row of the layer, wherein n is less than or equal to 3; the character size of the single key mark is slightly larger than that of the double key and the chord key position mark; the effect of displaying the image is that a double key and a chord key position mark are positioned on a connecting line between single key marks of two keys participating in the double key combination.

7. The screen display method of one-hand chord keyboard key positions as claimed in claim 6, between the upper and lower double-key chord key marks, a key position indication pattern is set, and the oblique edge of said pattern is used to point to the double-key chord key mark of the row which is farthest from single-key mark and another row of single-key marks which are participated in said combined double-key chord key, specifically, between the single key position marks of the keys 2 and 5 and the keys 5 and 8, a key position indication graph which spans the upper and lower two groups of separation lines and is vertically aligned with the single key position marks is respectively arranged, the 2 sloping sides above the key points to the single key position marks of the keys 7 and 9 respectively, the 2 sloping sides below the key points to the single key position marks of the keys 1 and 3 respectively, the upper and lower combination used for indicating the maximum difference of the double keys and the chord key positions between the middle row keys and the side row keys; on the right side between the single key position marks of keys 1 and 3 and keys 3 and 7, a key position indication graph is respectively arranged, the oblique side above the key position indication graph points to the single key position mark of key 9, and the oblique side below the key position indication graph points to the single key position mark of key 3, and the key position indication graph is used for indicating the up-and-down combination with the maximum difference of the double keys and the chord key positions between the keys in the edge row.

8. The single-hand chord keyboard key position screen display method as claimed in claims 1 and 2, characterized in that three-key chord key position identifiers in the screen image display are set, one key is selected from the middle column key and the right column key of the nine-palace-lattice keyboard according to the position, the points where the two selected key positions are located are connected into a whole by a connecting line to form a graphic symbol, then the graphic symbol is combined with the left column key 147, and the combined three-key chord key position function identifier name is placed from top to bottom at the position of the left column key corresponding to the left side of the graphic symbol according to the position of each key on the nine-palace-lattice keyboard, thereby forming a group of three-key chord key position identifiers; each group of three-key chord key mark is arranged in a rectangular picture frame divided into three layers by two separation lines according to the upper and lower positions of the middle-column key in the three-key chord key mark, and each layer is provided with three groups of three-key chord key marks under a graphic symbol formed by combining the middle-column key and three right-column keys.

9. The triple key and chord key indicator as claimed in claim 8, wherein said graphic symbols indicating the orientation of the middle row of keys and the right row of keys have a larger portion representing the middle row of keys and a smaller portion representing the right row of keys.

10. The chord key indicator display as claimed in claims 6 and 8, wherein the displayed image with single-key and double-key chord key indicators and the displayed image with triple-key chord key indicators are arranged together transversely or longitudinally, and an information bar is added above and displayed on the screen.

11. The chord keyboard and the key position identification display thereof as claimed in claims 2 and 10, wherein the corresponding assignments of the key positions of the chord keyboard are dynamically changed according to the application scene of the device, the assigned key positions are also dynamically displayed on the screen in linkage, and the objects of the key assignments include, but are not limited to, letters, symbols, numbers, expressions, passwords, databases, files, folders, file transfer, search, online shopping, video, audio, positioning, navigation, red envelope, images, business cards, scanning codes, time, schedule, command menu, payment, web address, setting, selection, switching, etc.

12. The single-handed string keyboard and the key position identification display thereof as claimed in claims 2 and 11, wherein in the english alphabet input scenario, the corresponding relations between the single-key alphabet and the keyboard key numbers are set as t-1, o-2, r-3, e-4, h-5, s-6, a-7, i-8, n-9, and space-0, and key 0 is also a Shift key, and the alphabet key position is pressed while the corresponding capital alphabet is input; setting the double-key chord key position letters and the key numbers of the keyboard chord key position as d-21, p-23, b-24, c-26, j-27, q-29, m-51, w-53, u-54, f-56, y-57, k-59, z-83, x-84, v-86, g-87, l-89, (,/. in case of capitalization) -18 has the double-key chord key position of the middle-column key; and double-key chord function keys such as Enter, Backspace, Delete, Insert and the like are arranged on the edge-column double-key chord function keys.

13. The single-hand string keyboard and the key position identification display thereof as claimed in claim 1 and 2, wherein the capsLock, the NumLock, the symbol (Sym), the Ctrl, the Alt, the Fn and other functional key positions are arranged on the side column double-key chord key position and/or the triple-key chord key position.

14. The one-handed chordal keyboard and the display of key locations identifiers thereof as claimed in claims 1 and 11, wherein when the device enters a new scene and/or application, the key location assignments and correspondingly displayed key location identifiers of the keyboard are automatically converted into corresponding functions and/or characters and/or commands.

15. The single-handed keyboard string and the key position identification displays thereof according to claims 1 and 11, wherein when some objects of the device display interface are selected by a mouse or other means, the corresponding commands or functions are invoked to the keys of the keyboard.

16. The single-handed string keyboard and the key position identification display thereof as claimed in claims 1 and 11, wherein the key positions of the keyboard can present tree-shaped data and be searched accordingly, and the double-key and the chord key position beside the object at the upper stage of the single-key position can be set as the object at the lower stage thereof.

17. The single-handed string keyboard and the key position identification display thereof as claimed in claims 1 and 2, wherein the key 0 is set as the most necessary function switching key in each scene, including but not limited to Shift key in the letter input state, and the lower case is converted into upper case after pressing; the selected key is in the searching state, and the opened object is converted into the selected object after being pressed; the number keys are used in the Chinese character input state, and the character input is converted into character selection after pressing, and the like.

18. The single-handed keyboard and its key position identification display according to claim 10 and 11, wherein the display images 22 and 23 and the information bar 21 and the text and/or symbol and/or key position indication graphics therein have different colors and/or ground colors according to the scene or state of the device.