CN109658843A - A kind of display device that multicolored icon is shown - Google Patents
A kind of display device that multicolored icon is shown Download PDFInfo
- Publication number
- CN109658843A CN109658843A CN201811621597.6A CN201811621597A CN109658843A CN 109658843 A CN109658843 A CN 109658843A CN 201811621597 A CN201811621597 A CN 201811621597A CN 109658843 A CN109658843 A CN 109658843A
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- Prior art keywords
- backlight
- module
- led backlight
- switch circuit
- connects
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of display devices that multicolored icon is shown, including LCD display sheet and control circuit board, soldering has driving IC in the control circuit board, LCD module and LED backlight module, back-light mechanism is covered in control circuit board, the back-light mechanism is made of LED backlight film and backlight switch circuit, LED backlight film is covered on backlight switch circuit, the LCD display sheet is by sequentially connected liquid-crystalline glasses from top to bottom, upper diffusion sheet, lower diffuser plate and light guide plate composition, upper diffusion sheet is clipped in respectively on the two sides of the liquid-crystalline glasses and light guide plate that are connected with lower diffuser plate, based on three-color LED backlight, three-color LED side back light successively sequential illumination, from red to green, from green to blue, again from blue to red, so circulation, driving IC is recycled to change for referring to according to predetermined order Become 3 field-effect tube Q1, Q2 and Q3 switch on and off in backlight switch circuit phase, realizes switch of the color as display in LED backlight module, realizing needs color to be shown.
Description
Technical field
The present invention relates to a kind of display device, in particular to a kind of display device that multicolored icon is shown.
Background technique
Currently, consumer equal products are related to the display of different colours in the market, be largely using TFT colorful display screen,
Or realized by the method for pigment silk-screen, in household electrical appliances, the fields such as gift, the general pattern for showing icon class, because only showing
Icon, therefore it is lower to drive the system hardware of display device and configuration that can design, it can be using the system schema of low cost.Choosing
When with TFT colorful display screen, because requiring pattern bigger than proud, so the resolution ratio of demand is very big, system hardware resources ratio is needed
Higher, cost is more expensive.Especially require display pattern greatly and in the case that quantity is few, the requirement to hardware is higher, but real
The resource requirement of border application is again smaller, leads to increased costs while the also wasting of resources.Therefore, it is necessary to develop to be not take up too
Multi-system resource and the display device that can show color content icon.
Summary of the invention
The purpose of the present invention is to provide a kind of display devices that multicolored icon is shown, having shows segment encode and icon
Mini system simply, easily realizes colored display, at low cost, the good advantage of color effect, to solve to propose in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of display device that multicolored icon is shown, including
LCD display sheet and control circuit board, soldering has driving IC, LCD module and LED backlight module, control in the control circuit board
Back-light mechanism is covered on circuit board, the back-light mechanism is made of LED backlight film and backlight switch circuit, and LED backlight film covers
It covers in backlight switch circuit, the LCD display sheet is by sequentially connected liquid-crystalline glasses from top to bottom, upper diffusion sheet, lower diffuser plate
It is formed with light guide plate, upper diffusion sheet is clipped in respectively on the two sides of the liquid-crystalline glasses and light guide plate that are connected with lower diffuser plate, lower diffusion
Plate is closely connect with the surface of LED backlight film；
The LCD module and LCD display sheet is electrically connected, and LCD module is for controlling after receiving the fluctuation from frame frequency
The time of each frame, subframe, and will need to be added to signal in LCD display sheet, and LCD display sheet needs to complete response,
It to light back-light mechanism within the time period；
The LED backlight module and back-light mechanism are electrically connected, control backlight three control lines RLED, GLED and
BLED control respectively 3 kinds of colors of LED light or closed state, the driving power of LED backlight module are provided by external power supply
Positive A.
Further, driving IC is connect by hardware COM&SEG with liquid-crystalline glasses, then the three of the control backlight for driving IC
Root control line RLED, GLED and BLED connects with backlight switch circuit, and the power supply of backlight switch circuit drives LED backlight module is defeated
Enter proper pole A, the cathode of three kinds of color lamps is electrode R, electrode G, electrode B respectively, can independently control three kinds of color LED back
Optical module light and closed state.
Further, the collector series resistance R of field-effect tube Q connects on electrode R in backlight switch circuit, field-effect tube
The collector series resistance R of Q connects on electrode G, and the collector series resistance R of field-effect tube Q connects in electrode B.
Further, driving IC include controller, communication conversion chip, power conversion, liquid crystal time-sequence control module and
External interface, controller connect with MCU, and the output end of controller connects with communication conversion chip, the input terminal and electricity of controller
Source conversion connects, and the output end of communication conversion chip connects with external interface, the output end and liquid crystal timing control of external interface
Module, power conversion and backlight switch circuit connect, and the output end of backlight switch circuit connects with LED backlight module, when liquid crystal
The output end of sequence control module connects with LCD module；
The controller 211 be used to refer to according to predetermined order change backlight switch circuit phase in 3 field-effect tube Q1,
Q2 and Q3 switch on and off realizes color in LED backlight module；
The communication conversion chip controls the work of all parts using controller after connection；
The liquid crystal time-sequence control module is used to selecting module and is used to determine LCD resolution and operating mode, and selection is closed
Suitable clock signal generates required control signal pulsewidth, and horizontal, vertical starting position and display region information, for controlling
System driving IC correctly shows valid data.
Compared with prior art, the beneficial effects of the present invention are:
The display device of this multicolored icon display, is based on three-color LED backlight, three-color LED side back light successively sequential illumination, from
Red is to green, from green to blue, then from blue to red, so recycles, and driving IC is recycled to be used to refer to according to predetermined
Sequence changes 3 field-effect tube Q1, Q2 and Q3 switch on and off in backlight switch circuit phase, realizes that color is made in LED backlight module
For the switch of display, realizing needs color to be shown.
Detailed description of the invention
Fig. 1 is structure chart of the invention；
Fig. 2 is the circuit diagram in control circuit board of the invention；
Fig. 3 is driving IC module map of the invention.
In figure: 1, LCD display sheet；11, liquid-crystalline glasses；12, upper diffusion sheet；13, lower diffuser plate；14, light guide plate；2, it controls
Circuit board；21, IC is driven；211, controller；212, communication conversion chip；213, power conversion；214, liquid crystal timing control mould
Block；215, external interface；22, LCD module；23, LED backlight module；3, back-light mechanism；31, LED backlight film；32, backlight switch
Circuit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear；It is complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of display device that multicolored icon is shown, including LCD display sheet 1 and control circuit board 2, control
Soldering has driving IC21, LCD module 22 and LED backlight module 23 on circuit board 2, is covered with back-light mechanism in control circuit board 2
3, back-light mechanism 3 is made of LED backlight film 31 and backlight switch circuit 32, and LED backlight film 31 is covered on backlight switch circuit 32,
Backlight switch circuit 32 controls the work that LED backlight film 31 is guided after LED backlight module 23 is connected, LED backlight film 31, and LCD is shown
Show that piece 1 is made of sequentially connected liquid-crystalline glasses 11, upper diffusion sheet 12, lower diffuser plate 13 and light guide plate 14 from top to bottom, upper expansion
Discrete piece 12 is clipped in respectively on the two sides of the liquid-crystalline glasses 11 and light guide plate 14 that are connected with lower diffuser plate 13, lower diffuser plate 13 and LED
The surface of backlight film 31 closely connects, and light guide plate 14 receives the signal from LCD module 22 and controls backlight.
LCD display sheet 1 is the monochromatic liquid crystal display of quick response；3 backlight of back-light mechanism is the side back of three primary colours RGB
Light drives the power input anode A of backlight, and the cathode of three kinds of color lamps is electrode R respectively, and electrode G, electrode B can be only respectively
Vertical three kinds of color lamps of control light and closed state；Driving IC21 is dedicated driving, can drive LCD display sheet 1 and control
Back-light mechanism 3, COM&SEG are that connect and drive the control PIN of this 3 IC be to control back-light mechanism 3 kinds of colors respectively to light
Or closed state.
LCD module 22 and LCD display sheet 1 are electrically connected, and LCD module 22 is for controlling after receiving the fluctuation from frame frequency
The time of each frame, subframe, and will need to be added to signal in LCD display sheet 1, and LCD display sheet 1 needs to complete response,
Also it to light back-light mechanism 3 within the time period, if 1 frame frequency of LCD display sheet is 60HZ, the time of each frame is about
16.5ms, each frame are divided into 3 subframes, and each subframe is 5.5ms.In 5.5ms, need for signal to be added to LCD display sheet 1
On, and LCD display sheet 1 needs to complete response, and back-light mechanism 3 will also be lighted within the time period, control LED backlight module 23
With 1 on and off of LCD display sheet, various colors can be obtained.
LED backlight module 23 and back-light mechanism 3 are electrically connected, and control three control lines RLED, GLED and BLED of backlight
Control respectively LED3 kind color light or closed state, the driving power of LED backlight module 23 are provided just by external power supply
Pole A.
Referring to Fig. 2, driving IC21 is connect by hardware COM&SEG with liquid-crystalline glasses 11, then the control of driving IC21
Three control lines RLED, GLED and BLED of backlight connect with backlight switch circuit 32, and backlight switch circuit 32 drives LED backlight
The power input anode A of module 23, the cathode of three kinds of color lamps are electrode R, electrode G, electrode B respectively, can independently be controlled
Make three kinds of color LED backlight modules 23 light and closed state, the collector string of field-effect tube Q1 in backlight switch circuit 32
Connection resistance R1 connects on electrode R, and the collector series resistance R2 of field-effect tube Q2 connects on electrode G, the current collection of field-effect tube Q3
Pole series resistance R3 connects in electrode B.
Based on three-color LED backlight, three-color LED side back light successively sequential illumination, from red to green, from green to blue,
It again from blue to red, so recycles, recycles driving IC21 control section pattern monochrome LCD as the switch of display, realizing needs
Color to be shown.
Referring to Fig. 3, driving IC21 includes controller 211, communication conversion chip 212, power conversion 213, liquid crystal timing
Control module 214 and external interface 215, controller 211 connect with MCU, the output end and communication conversion chip of controller 211
212 connect, and the input terminal of controller 211 connects with power conversion 213, the output end and external interface of communication conversion chip 212
215 connect, the output end and liquid crystal time-sequence control module 214, power conversion 213 and backlight switch circuit 32 of external interface 215
Connect, the output end of backlight switch circuit 32 connects with LED backlight module 23, the output end of liquid crystal time-sequence control module 214 with
LCD module 22 connects
Controller 211 be used to refer to according to predetermined order change 32 phase of backlight switch circuit in 3 field-effect tube Q1, Q2 and
Q3 switch on and off realizes color in LED backlight module 23；
Communication conversion chip 212 controls the work of all parts using controller 211 after connection；
Liquid crystal time-sequence control module 214 is used to selecting module and is used to determine LCD resolution and operating mode, when selecting suitable
Clock signal generates required control signal pulsewidth, and horizontal, vertical starting position and display region information, drives for controlling
Dynamic IC21 correctly shows valid data.
The liquid crystal display device monochrome LCD of the segment encode type monochrome of low cost is combined into LED type side backlight module group aobvious
Show device, realizes colored display.It does not need the technique and expensive color filter film cost of TFT complexity, will not be as device
Part silk-screen pigment has the limitation of fixed color and location conten.
In conclusion the display device of this multicolored icon display, is based on three-color LED backlight, three-color LED side back light is successively suitable
Sequence is lighted, and from red to green, from green to blue, then from blue to red, is so recycled, and recycles driving IC21 for being
Refer to and change 3 field-effect tube Q1, Q2 and Q3 switch on and off in 32 phase of backlight switch circuit according to predetermined order, realizes LED backlight
Switch of the color as display in module 23, realizing needs color to be shown.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of display device that multicolored icon is shown, including LCD display sheet (1) and control circuit board (2), it is characterised in that:
Soldering has driving IC (21), LCD module (22) and LED backlight module (23), control circuit board on the control circuit board (2)
(2) it being covered on back-light mechanism (3), the back-light mechanism (3) is made of LED backlight film (31) and backlight switch circuit (32),
LED backlight film (31) is covered on backlight switch circuit (32), and the LCD display sheet (1) is by sequentially connected liquid crystal from top to bottom
Glass (11), upper diffusion sheet (12), lower diffuser plate (13) and light guide plate (14) composition, upper diffusion sheet (12) and lower diffuser plate (13)
It is clipped on the two sides of connected liquid-crystalline glasses (11) and light guide plate (14) respectively, lower diffuser plate (13) and LED backlight film (31)
Surface closely connects；
The LCD module (22) and LCD display sheet (1) is electrically connected, and LCD module (22) is for receiving the fluctuation from frame frequency
Afterwards, time, the subframe of each frame are controlled, and will need for signal to be added on LCD display sheet (1), and LCD display sheet (1) needs
It completes to respond, also to light back-light mechanism (3) within the time period；
The LED backlight module (23) and back-light mechanism (3) is electrically connected, and controls three control lines RLED, GLED of backlight
Controlled respectively with BLED LED3 kind color light or closed state, the driving power of LED backlight module (23) is by external power supply
The positive A of offer.
2. the display device that a kind of multicolored icon according to claim 1 is shown, it is characterised in that: driving IC (21) passes through
Hardware COM&SEG is connect with liquid-crystalline glasses (11), then driving IC (21) control backlight three control lines RLED, GLED and
BLED connects with backlight switch circuit (32), and backlight switch circuit (32) drives the power input of LED backlight module (23) to rectify
Pole A, the cathode of three kinds of color lamps are electrode R, electrode G, electrode B respectively, can independently control three kinds of color LED backlight modules
(23) light and closed state.
3. the display device that a kind of multicolored icon according to claim 1 is shown, it is characterised in that: backlight switch circuit
(32) the collector series resistance R1 of field-effect tube Q1 connects on electrode R in, and the collector series resistance R2 of field-effect tube Q2 connects
On electrode G, the collector series resistance R3 of field-effect tube Q3 is connect in electrode B.
4. the display device that a kind of multicolored icon according to claim 1 is shown, it is characterised in that: driving IC (21) include
Controller (211), communication conversion chip (212), power conversion (213), liquid crystal time-sequence control module (214) and external interface
(215), controller (211) connects with MCU, and the output end of controller (211) connects with communication conversion chip (212), controller
(211) input terminal connects with power conversion (213), the output end and external interface (215) phase of communication conversion chip (212)
It connects, output end and liquid crystal time-sequence control module (214), the power conversion (213) and backlight switch circuit of external interface (215)
(32) connect, the output end of backlight switch circuit (32) connects with LED backlight module (23), liquid crystal time-sequence control module (214)
Output end connect with LCD module (22)；
The controller (211), which is used to refer to, changes 3 field-effect tube in backlight switch circuit (32) phase according to predetermined order
Q1, Q2 and Q3 switch on and off realize color in LED backlight module (23)；
Communication conversion chip (212) controls the work of all parts using controller 211 after connection；
The liquid crystal time-sequence control module (214) is used to selecting module and is used to determine LCD resolution and operating mode, and selection is closed
Suitable clock signal generates required control signal pulsewidth, and horizontal, vertical starting position and display region information, for controlling
System driving IC (21) correctly shows valid data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621597.6A CN109658843A (en) | 2018-12-28 | 2018-12-28 | A kind of display device that multicolored icon is shown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621597.6A CN109658843A (en) | 2018-12-28 | 2018-12-28 | A kind of display device that multicolored icon is shown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109658843A true CN109658843A (en) | 2019-04-19 |
Family
ID=66118058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811621597.6A Pending CN109658843A (en) | 2018-12-28 | 2018-12-28 | A kind of display device that multicolored icon is shown |
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| Country | Link |
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| CN (1) | CN109658843A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201369152Y (en) * | 2009-03-21 | 2009-12-23 | 汕头超声显示器（二厂）有限公司 | RGB backlight type color liquid crystal display component |
| CN205231068U (en) * | 2015-12-28 | 2016-05-11 | 昆山维信诺科技有限公司 | Oled display panel structure |
| CN207966469U (en) * | 2018-01-17 | 2018-10-12 | 上海坦继显示技术有限公司 | A kind of low-light-level display device |
-
2018
- 2018-12-28 CN CN201811621597.6A patent/CN109658843A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201369152Y (en) * | 2009-03-21 | 2009-12-23 | 汕头超声显示器（二厂）有限公司 | RGB backlight type color liquid crystal display component |
| CN205231068U (en) * | 2015-12-28 | 2016-05-11 | 昆山维信诺科技有限公司 | Oled display panel structure |
| CN207966469U (en) * | 2018-01-17 | 2018-10-12 | 上海坦继显示技术有限公司 | A kind of low-light-level display device |
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Application publication date: 20190419 |
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| RJ01 | Rejection of invention patent application after publication |