CN107949147B - Flexible circuit board and touch control equipment - Google Patents
Flexible circuit board and touch control equipment Download PDFInfo
- Publication number
- CN107949147B CN107949147B CN201610891011.2A CN201610891011A CN107949147B CN 107949147 B CN107949147 B CN 107949147B CN 201610891011 A CN201610891011 A CN 201610891011A CN 107949147 B CN107949147 B CN 107949147B
- Authority
- CN
- China
- Prior art keywords
- touch
- circuit board
- flexible circuit
- light
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention discloses a flexible circuit board and touch equipment. The flexible circuit board includes: arranging a light guide area on a base material with preset transparency of a flexible circuit board, and arranging a key area around the light guide area; silk-printing a light homogenizing film in the light guide area; and arranging a touch key in the key area. The touch device includes: the flexible circuit board and the touch panel are stacked with the flexible circuit board; a touch area is arranged on the touch panel; and the touch area on the touch panel corresponds to the touch key position on the flexible circuit board. The touch control equipment is not provided with the light guide module and the light guide column, utilizes the space saved between the LCD and the TP, and arranges the thicker light equalizing film on the FPC to ensure that the FPC has the functions of light guide and light equalization, thereby improving the light guide and light equalizing effects.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a flexible circuit board and touch control equipment.
Background
Currently, a touch device is often provided with a touch key that can be lit up in a dark light environment. The touch key includes: HOME key, backspace key, menu key, fingerprint identification key, etc.
In the prior art, the Light guide keys need LGF (Light Guiding Films) or a Light guide column, and the Light guide module and the Light guide column are used for diffusing Light emitted by a Light emitting lamp inside the touch device to the outside of the touch device, so as to Light icons of the touch keys and enable a user to recognize the touch keys.
With the progress of science and technology, the thickness of touch equipment is thinner and thinner, and especially smart mobile phone and panel computer pursue extremely thin in the design, under this condition, generally adopt the cooperation of leaded light module to light touch-control button. Fig. 1 is a structural diagram of a conventional touch device, the touch device including: a Liquid Crystal Display (LCD) 1, a light guide module 2, a Flexible Printed Circuit (FPC) 3, and a Touch Panel (TP) 4; an FPC3 is arranged between the TP4 and the LCD1, and a light guide module 2 is arranged between the LCD1 and the FPC 3; this FPC adopts the fretwork design, is provided with the touch key around fretwork department on FPC3, and light guide module 2 corresponds this fretwork and removes, and like this, when the luminescent light was luminous, light just can see through light guide module 2, passed fretwork department, lighted the icon of touch key. However, because touch equipment is thin, the space between LCD1 and TP4 is limited, and light guide module 2 itself occupies certain space, so lead to that the thickness of the light-equalizing film that is used for the light equalization of silk screen printing on light guide module 2 is thin, cause light guide, the light-equalizing effect of current touch equipment poor, and user experience effect is not good.
Disclosure of Invention
The invention provides a flexible circuit board and touch equipment, which are used for solving the problem that the light guiding and equalizing effects of the touch equipment in the prior art are poor.
In order to solve the technical problems, the invention solves the problems by the following technical scheme:
the present invention provides a flexible circuit board, comprising: arranging a light guide area on a base material with preset transparency of a flexible circuit board, and arranging a key area around the light guide area; silk-printing a light homogenizing film in the light guide area; and arranging a touch key in the key area.
When the number of the light guide areas is multiple, the key area is arranged around the multiple light guide areas; and arranging the touch key around the light guide area corresponding to the touch key in the key area.
Wherein, in the key area, a light shielding film is arranged along the edge of each light guide area.
White ink is adopted for silk-screening the light homogenizing film; arranging the shading film by adopting a black-white double-sided adhesive tape; polyimide PI is adopted as a base material of the flexible circuit board.
The present invention also provides a touch device, including: the flexible circuit board and the touch panel are stacked with the flexible circuit board; a touch area is arranged on the touch panel; and the touch area on the touch panel corresponds to the touch key position on the flexible circuit board.
Setting a key icon with preset transparency in the touch area; the key icons correspond to the light guide areas on the flexible circuit board in position, and the area occupied by the key icons is smaller than the area of the light guide areas.
And the light-equalizing film silk-screened on the light guide area of the flexible circuit board is positioned on a plane which is not opposite to the flexible circuit board and the touch panel.
Wherein the touch device further comprises: a light emitting lamp; the light emitting lamp, the flexible circuit board and the touch panel are arranged from top to bottom; the number of the light-emitting lamps is the same as that of the light guide regions, and each light-emitting lamp corresponds to one light guide region.
The invention has the following beneficial effects:
the touch control equipment is not provided with the light guide module and the light guide column, utilizes the space saved between the LCD and the TP, and arranges the thicker light equalizing film on the FPC to ensure that the FPC has the functions of light guide and light equalization, thereby improving the light guide and light equalizing effects.
Drawings
Fig. 1 is a structural diagram of a conventional touch device;
fig. 2 is a schematic diagram of a flexible circuit board according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a flexible circuit board according to a second embodiment of the present invention;
fig. 4 is a schematic positional diagram of a flexible circuit board according to a third embodiment of the present invention;
FIG. 5 is a structural diagram of a touch device according to a third embodiment of the present invention;
fig. 6 is a detailed structural diagram of a touch device according to a third embodiment of the present invention.
Description of reference numerals: the touch control module comprises a Liquid Crystal Display (LCD) 1, a light guide module 2, a flexible circuit board (FPC) 3 of a touch key, a touch panel TP4, a light guide area 5, a key area 6, a luminescent lamp 7, a touch area 8 and a luminescent lamp flexible circuit board FPC 9.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
The embodiment of the invention provides a flexible circuit board for setting a touch key, which is applied to touch equipment and has the functions of light guiding and light equalizing.
Fig. 2 is a schematic view of a flexible circuit board according to a first embodiment of the present invention.
The flexible circuit board 3 includes: light guide region 5 and key region 6. The flexible circuit board 3 is a flexible circuit board for setting a touch key, and the flexible circuit board 3 may be referred to as a key flexible circuit board.
In this embodiment, the substrate of the flexible circuit board 3 is made of a transparent material and has transparency. This embodiment employs PI (Polyimide) as a base material of the flexible circuit board 3. Further, a flexible circuit board 3 having a predetermined transparency is manufactured using PI as a base material.
In the embodiment, the flexible circuit board 3 adopts a non-hollow design, a light guide area 5 is arranged on a substrate with preset transparency of the flexible circuit board 3, and a key area 6 is arranged around the light guide area 5; screen printing a light homogenizing film in the light guide region 5; touch keys are arranged in the key area 6.
Furthermore, in the key area 6, the touch keys are arranged, that is, the key area 6 is provided with a circuit of touch keys around the light guide area 5, and the touch keys corresponding to the light guide area 5 are formed.
Further, a light shielding film is provided along the edge of light guiding region 5 in key region 6. Thus, the light shielding film is provided in a ring shape. Furthermore, the light shielding film and the circuit of the touch key are not overlapped. The light shielding film and the lines of the touch keys may be disposed in both faces of the flexible circuit board 3, respectively.
In this example, a white ink screen printing of a uniform light film was used. Further, a white ink with a preset thickness is silk-printed in the light guide region 5 to form a light uniformizing film. When the touch key is lightened, the light equalizing film can make the light uniform, soft and full.
In this embodiment, a black-and-white double-sided tape is used to provide a light shielding film. When the touch key is turned on, the light shielding film can prevent light from diffusing outwards, so that a user can only see the light diffused from the light guide region 5.
When the flexible circuit board 3 of the embodiment is applied to the touch device, a light guide module and a light guide column can be omitted, so that the space of the touch device is saved, and the cost is saved; based on the saved space, a thicker light-equalizing film can be silk-screened on the flexible circuit board 3, so that the light-equalizing effect is improved; the PI is used as a base material of the flexible circuit board 3, so that the flexible circuit board 3 has high transparency, and the light guide effect is improved.
Example two
The number of the light guide regions 5 is greater than or equal to the number of the touch keys. Each touch key corresponds to one light guide area. When the number of light guide regions is plural, key region 6 is provided so as to surround the plural light guide regions.
When the number of the light guide regions 5 is equal to the number of the touch keys, touch keys corresponding to the light guide regions are arranged around each light guide region in the key region.
When the number of the light guide regions 5 is greater than the number of the touch keys, the light guide regions 5 of which the number is the same as that of the touch keys are selected, so that each selected light guide region 5 corresponds to one touch key, and the touch keys are arranged around the light guide region corresponding to the touch keys in the key region.
Fig. 3 is a schematic diagram of a flexible circuit board 3 according to a second embodiment of the present invention. Fig. 3 shows a case where the number of light guiding regions 5 is equal to the number of touch keys.
For convenience of user operation, a plurality of touch keys may be disposed in the touch device, for example: and setting an HOME key, a backspacing key and a menu key in the touch equipment.
In the present embodiment, the same number of light guide regions 5 as the number of touch keys is set, that is, the number of light guide regions 5 is the same as the number of touch keys.
As shown in fig. 2, when one light guide region 5 is provided, one touch key is provided in the key region 6 around the light guide region 5. Furthermore, only one touch key circuit corresponding to the light guide region 5 needs to be arranged in the key region 6.
As shown in fig. 3, when a plurality of light guiding regions 5 are provided, touch keys are provided in the key region 6 around the plurality of light guiding regions 5, respectively, and further, one touch key is provided in the key region 6 around each light guiding region 5. In other words, in the key region 6, a line of one touch key is disposed around each light guide region 5, and the touch key corresponding to the light guide region 5 is formed.
In the present embodiment, a light shielding film is provided along the edge of each light guiding region 5 in key region 6. The plurality of light shielding films and the plurality of touch keys may be disposed in both surfaces of the flexible circuit board 3, respectively.
EXAMPLE III
The embodiment provides a touch device. The touch device of the present embodiment utilizes the flexible circuit board 3 capable of guiding and equalizing light to set the touch keys.
The position of the flexible circuit board 3 in the touch device of the present invention will be described below using fig. 4. Fig. 4 is a schematic position diagram of a flexible circuit board according to a third embodiment of the present invention.
The touch device includes: the liquid crystal display 1, the flexible circuit board 3, and the touch panel 4 are sequentially stacked, and as shown in fig. 4, the liquid crystal display 1, the flexible circuit board 3, and the touch panel 4 are disposed from top to bottom. The flexible circuit board 3 is located between the liquid crystal display 1 and the touch panel 4. Therefore, it can be clearly seen that the touch control equipment is not provided with the light guide module and the light guide column, and the light guide area is arranged on the flexible circuit board 3, and the light homogenizing film is silk-printed in the light guide area, so that the light guide and homogenizing effects can be achieved.
In order to make the touch device of the present invention clearer, the touch device of the present invention is further described below using fig. 5 and 6.
Fig. 5 is a structural diagram of a touch device according to a third embodiment of the present invention.
The touch device includes: the light emitting lamp 7, the liquid crystal display 1, the flexible circuit board 3, and the touch panel 4 are sequentially stacked. As shown in fig. 5, the light emitting lamp 7, the liquid crystal display 1, the flexible circuit board 3, and the touch panel 4 are disposed from top to bottom.
The flexible circuit board 3 is provided with a key area 6, one or more light guide areas 5, and touch keys correspondingly arranged around each light guide area 5 in the key area 6. Reference may be made in particular to fig. 2 and 3.
The light-homogenizing film silk-screened on the light-guiding area 5 of the flexible circuit board 3 is positioned on the opposite surface of the flexible circuit board 3 and the liquid crystal display 1. In other words, the light-equalizing film silk-screened on the light guide region 5 of the flexible circuit board 3 is located on a plane not opposite to the flexible circuit board 3 and the touch panel 4.
The flexible circuit board 3 and the touch panel 4 are stacked. Preferably, the touch panel 4 is a capacitive touch panel in this embodiment.
Fig. 6 is a detailed structural diagram of a touch device according to a third embodiment of the invention.
A touch area 8 is arranged on the touch panel 4; the number of the touch areas 8 is the same as that of the touch keys; the touch area on the touch panel 4 corresponds to the touch key position on the flexible circuit board 3. In other words, the touch area may trigger the corresponding touch key.
As shown in fig. 6, the flexible circuit board 3 is provided with three light guide regions, one touch key is correspondingly arranged around each light guide region, that is, the flexible circuit board 3 is provided with three touch keys, the touch panel 4 is provided with three touch regions 8 with the same number as that of the touch keys, each touch region 8 corresponds to one touch key, and the corresponding touch key can be triggered by touching the touch region 8.
In order to distinguish the touch keys corresponding to the touch area 8, a key icon with a preset transparency may be set in the touch area 8; the key icon is used for identifying the function of the touch key; the key icons correspond to the light guide area 5 on the flexible circuit board 3 in position, and the area occupied by the key icons is smaller than that of the light guide area 5. Therefore, the light scattered by the light guide area can be completely irradiated on the key icon.
In the present embodiment, the Light Emitting lamp 7 may be an LED (Light Emitting Diode) lamp. The number of light emitting lamps 7 is the same as the number of light guiding regions 5. The plurality of light-emitting lamps 7 are in the same plane, and the plane is parallel to the plane in which the flexible circuit board 3 is located.
Each light emitting lamp 7 corresponds in position to one light guiding region 5 in the flexible circuit board 3.
As shown by the dotted line in fig. 6, the light emitted from the light emitting lamp 7 propagates along the dotted line direction, and reaches the touch area 8 through the corresponding light guiding area 5, so that the touch area 8 is lighted, and the touch key corresponding to the touch area 8 is lighted.
The light emitting lamps 7 may be disposed on the light emitting lamp flexible circuit board 9, and the on/off of the light emitting lamps 7 is adjusted by the light emitting lamp flexible circuit board 9. The touch control device can control the flexible circuit board 9 of the light-emitting lamp to adjust the on/off of the light-emitting lamp 7. In order to make the positional relationship among the liquid crystal display 1, the flexible circuit board 3, the touch panel 4, the light emitting lamps 7 and the light emitting lamp flexible circuit board 9 clearer, fig. 6 is an exploded view of the touch device.
Under the control of the touch device, the flexible circuit board 9 of the light emitting lamps can enable all the light emitting lamps 7 to be turned on or off simultaneously, and can also enable a single light emitting lamp 7 to be turned on or off. In order to not shield the light emitted from the light emitting lamp 7, the light emitting lamp flexible circuit board 9 is disposed above the light emitting lamp 7, and the plane where the light emitting lamp flexible circuit board 9 is disposed, the plane where the light emitting lamp 7 is disposed, and the plane where the liquid crystal display 1 is disposed are sequentially stacked.
In this embodiment, the light-emitting lamp 7 emits light under the control of the touch device, the light irradiates the light guiding region 5 corresponding to the light-emitting lamp 7, and is conducted to the outside of the touch device through the light guiding region 5 and the key icon corresponding to the position of the light guiding region 5, so that the user can see that the key icon of the touch key is lighted.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.
Claims (7)
1. A flexible circuit board, comprising:
arranging a light guide area on a base material of a flexible circuit board, arranging a key area around the light guide area, and arranging a light shielding film along the edge of each light guide area in the key area;
silk-printing a light homogenizing film in the light guide area;
and arranging a touch key in the key area.
2. The flexible circuit board of claim 1,
when the number of the light guide areas is multiple, the key area is arranged around the multiple light guide areas;
and in the key area, the touch key is arranged around the light guide area corresponding to the touch key.
3. The flexible circuit board of claim 2,
adopting white ink to screen print the light homogenizing film;
arranging the shading film by adopting a black-white double-sided adhesive tape;
polyimide PI is adopted as a base material of the flexible circuit board.
4. A touch device, comprising: the flexible circuit board of any one of claims 1-3, and a touch panel disposed in a stack with the flexible circuit board;
a touch area is arranged on the touch panel;
and the touch area on the touch panel corresponds to the touch key position on the flexible circuit board.
5. Touch device according to claim 4,
setting a key icon with preset transparency in the touch area;
the key icons correspond to the light guide areas on the flexible circuit board in position, and the area occupied by the key icons is smaller than the area of the light guide areas.
6. Touch device according to claim 4,
and the light-equalizing film silk-screened on the light guide area of the flexible circuit board is positioned on a plane which is not opposite to the flexible circuit board and the touch panel.
7. Touch device according to claim 5,
the touch device further includes: a light emitting lamp;
in the touch device, the light emitting lamp, the flexible circuit board and the touch panel are sequentially stacked;
the number of the light-emitting lamps is the same as that of the light guide regions, and each light-emitting lamp corresponds to one light guide region.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610891011.2A CN107949147B (en) | 2016-10-12 | 2016-10-12 | Flexible circuit board and touch control equipment |
| PCT/CN2017/075020 WO2018068463A1 (en) | 2016-10-12 | 2017-02-27 | Flexible printed circuit and touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610891011.2A CN107949147B (en) | 2016-10-12 | 2016-10-12 | Flexible circuit board and touch control equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107949147A CN107949147A (en) | 2018-04-20 |
| CN107949147B true CN107949147B (en) | 2020-11-03 |
Family
ID=61905089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610891011.2A Active CN107949147B (en) | 2016-10-12 | 2016-10-12 | Flexible circuit board and touch control equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107949147B (en) |
| WO (1) | WO2018068463A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111881761B (en) * | 2020-06-30 | 2022-09-23 | 厦门天马微电子有限公司 | Display module and display device |
| CN112506382A (en) * | 2021-01-05 | 2021-03-16 | 超级智慧家(上海)物联网科技有限公司 | Touch panel |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398151B (en) * | 2008-10-15 | 2010-06-02 | 杨龙勇 | Method for processing mobile phone push-button light guiding film |
| US8854326B2 (en) * | 2011-03-10 | 2014-10-07 | Wintek Corporation | Touch panel and touch-sensitive display device |
| CN103137368A (en) * | 2011-11-22 | 2013-06-05 | 致伸科技股份有限公司 | Light-emitting keyboard |
| KR20130074488A (en) * | 2011-12-26 | 2013-07-04 | 삼성전기주식회사 | Connerting structure of touch panel |
| CN202422067U (en) * | 2012-02-20 | 2012-09-05 | 广东欧珀移动通信有限公司 | Full-adhering structure of cellphone touch screen and liquid-crystal module (LCM) |
| CN103458073B (en) * | 2013-08-23 | 2015-12-23 | 深圳欧菲光科技股份有限公司 | Contact panel, touching display screen and mobile phone thereof |
| CN105739791B (en) * | 2014-12-08 | 2019-06-11 | 华显光电技术（惠州）有限公司 | Touch control device, smart phone and backlight touch inductive component |
| CN105335035B (en) * | 2015-12-09 | 2018-05-04 | 南京华睿川电子科技有限公司 | A kind of capacitive touch screen with key-press backlight source |
-
2016
- 2016-10-12 CN CN201610891011.2A patent/CN107949147B/en active Active
-
2017
- 2017-02-27 WO PCT/CN2017/075020 patent/WO2018068463A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018068463A1 (en) | 2018-04-19 |
| CN107949147A (en) | 2018-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9454237B2 (en) | Key assembly for electronic device | |
| KR100639732B1 (en) | Touch type button apparatus and electronic device | |
| US20100137033A1 (en) | Illuminated Touch Sensitive Surface Module | |
| KR20120036076A (en) | Keypad apparatus for portable communication device | |
| US9412536B2 (en) | Illuminated keyboard | |
| US20090109068A1 (en) | Touch control input device, and computer apparatus including the same | |
| US20140085860A1 (en) | Light guide module for keypad | |
| US20130229828A1 (en) | Display device of electrical apparatus | |
| WO2014103519A1 (en) | Input apparatus, display apparatus, and electronic apparatus | |
| TW201517098A (en) | Keyboard | |
| KR20160036712A (en) | Display device | |
| CN107949147B (en) | Flexible circuit board and touch control equipment | |
| TWI753769B (en) | Touch pad with key input function | |
| US20140320441A1 (en) | Touch panel and electric device | |
| JP2009146835A (en) | Display device | |
| CN103207700B (en) | For the touch panel device, digital equipment and portable terminal of portable terminal | |
| KR20110135345A (en) | Light guide having a capacitive sensing grid and related methodology | |
| KR102035715B1 (en) | Liquid crystal display | |
| CN104599598A (en) | Display device | |
| CN104979124A (en) | Flexible circuit board having shielding effect and applied to keyboard backlight | |
| US20230131617A1 (en) | Electronic device | |
| JP2010086743A (en) | Sheet switch module | |
| US11782303B2 (en) | Electronic device and manufacturing method with a particular light shielding structure in an icon region | |
| US11662619B1 (en) | Electronic device | |
| KR101039051B1 (en) | Keypad module using indium-tin oxide film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |