CN101419780A - Displaying method for liquid crystal display - Google Patents
Displaying method for liquid crystal display Download PDFInfo
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- CN101419780A CN101419780A CNA2007101241594A CN200710124159A CN101419780A CN 101419780 A CN101419780 A CN 101419780A CN A2007101241594 A CNA2007101241594 A CN A2007101241594A CN 200710124159 A CN200710124159 A CN 200710124159A CN 101419780 A CN101419780 A CN 101419780A
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Abstract
The invention relates to a displaying method of a liquid crystal display. The display comprises a liquid crystal display screen and backlight source of one color at least. The display screen is divided into a content area consisting of a plurality of character/figure sections and a background area. Under a first display mode, a character/figure part to be displayed in the content area of the display screen is driven as a first state, and the other part of the content area and the background area are driven as a second state; under a second display mode, the character/figure part to be displayed in the content area of the display screen is driven as the second state, and the other part of the content area and the background area are driven as the first state; wherein, the first state is lighttight state, and the second state is non-lighttight state; and when the part to be displayed in the content area is under the first state, the backlight source is selected and driven to work. The method can change positive and negative display forms according to an external command and change the color of backlight combined with the display form, thereby realizing the display in different forms and various colors with low cost.
Description
Technical field
The present invention relates to LCD, more particularly, relate to a kind of LCD multi-mode display packing.
Background technology
In the prior art, monochromatic liquid crystal display generally adopts positive display mode (also white gravoply, with black engraved characters) to show, and generally all only is equipped with a backlight.For example, liquid crystal display clock great majority in the market all are positive display mode, and when ambient light was more weak, it was then relatively more difficult to want to see clearly writing, needs manually opened backlight just can see clearly.In addition, owing to have only a kind of backlight of color, when the user need indicate various information with different colours backlight, can't satisfy this demand of user.
Therefore there is the single defective of display mode in the monochromatic liquid crystal display of prior art, can't provide abundanter, more can satisfy the display mode of specific demand for the user.
Summary of the invention
The technical problem to be solved in the present invention is, at the single defective of the liquid crystal display displays pattern of above-mentioned prior art, provides the display packing of the LCD of one kind of multiple patterns.
The technical solution adopted for the present invention to solve the technical problems is: a kind of LCD device display method, described display comprises the backlight of display screen and at least a color, described display screen divides for content regions and background area of being made up of a plurality of characters/graphics sections, said method comprising the steps of:
Determine that current is first or second kind of display mode;
Under first kind of display mode, the characters/graphics that will show that drives in the screen content district partly is first kind of state, and the other parts and the background area that drive content regions are second kind of state;
Under second kind of display mode, the characters/graphics that will show that drives in the screen content district partly is second kind of state, and the other parts and the background area that drive content regions are first kind of state;
Wherein, first kind of state is light transmission state, and second kind of state is non-light transmission state; And when the part that will show in the content regions is in first kind of state, select and drive described backlight work.
In LCD device display method of the present invention, described selection also drives described backlight work, comprises selecting a kind of in the above backlight of at least a color, drives its work.
In LCD device display method of the present invention, described display mode is or/and the duty of backlight is definite according to current slot.
In LCD device display method of the present invention, described display mode is or/and the duty of backlight is definite according to ambient light intensity.
In LCD device display method of the present invention, described display mode is or/and the duty of backlight is definite according to environment temperature.
In LCD device display method of the present invention, the duty of described display mode and backlight is according to being determined by the user instruction that receives
In LCD device display method of the present invention, when described backlight comprises two kinds of colors, describedly select to comprise:, select first kind of display mode in the very first time of every day section according to the time period; In second time period of every day, select second kind of display mode; And when being operated under first kind of display mode, meet very first time section weekly, select the backlight of first kind of color; Meet second time period weekly, select the backlight of second kind of color.
In LCD device display method of the present invention, when ambient light intensity during, keep or be transformed into first display mode less than predetermined threshold value, select and drive described backlight work.
In LCD device display method of the present invention, described selection also drives described backlight work and comprises: meet very first time section weekly, select the backlight of first kind of color; Meet second time period weekly, select the backlight of second kind of color.
In LCD device display method of the present invention, described displaying contents comprises in date, week, time, environment temperature, weather forecast, the prompting of schedule item, news recap, quotations on the stock market, advertisement, the game shows one or multinomial.
Implement LCD of the present invention, have following beneficial effect: can select plurality of display modes as required, to satisfy the user uses LCD under multiple condition different demands.For example, according to the local display of the present invention, but the demonstration of the common white gravoply, with black engraved characters under the display backlight off position, also may command character partial switching, by being equipped with 2 kinds or above backlight, can realize the character demonstration of red and green or other color, thereby can realize the characters/graphics demonstration of many colors at low cost, provide support for creating panoramic application product.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Figure 1A is the structural representation of the LCD according to the present invention;
Figure 1B is the characters/graphics display block of LCD module in one embodiment of the invention and the synoptic diagram of background section;
Fig. 2 A is the positive display mode synoptic diagram according to the embodiment of the invention;
Fig. 2 B is the negative display mode synoptic diagram according to the embodiment of the invention;
Fig. 3 A-3C is the electrode connection layout during LCD module character display according to an embodiment of the invention;
Fig. 4 is the circuit theory diagrams of LCD according to an embodiment of the invention;
Fig. 5 shows the control synoptic diagram according to an embodiment of the invention;
Fig. 6 shows the control synoptic diagram according to another embodiment of the present invention;
Fig. 7 is the synoptic diagram according to display packing of the present invention.
Embodiment
Shown in Figure 1A, in LCD of the present invention, comprise backlight 10, LCD module 20 and display driver circuit 30.Wherein, display driver circuit 30 comprises characters/graphics driving circuit 31, background area segment drive circuit 32, backlight source driving circuit 33 and display mode selection and control module 36.At the LCD duration of work, display driver circuit 30 can be as required and/or parameter preset control the displaying contents and the display mode of LCD module 20, comprise the duty of positive display mode, negative display mode and backlight.
Among Figure 1A, display driver circuit 30 also is connected with clock circuit 41, light intensity testing circuit 42, temperature sensing circuit 43, user interface circuit 44, storer 51 and external memory interface circuit 52.The effect of these modules will be described hereinafter.
Shown in Figure 1B, in illustrative liquid crystal display of the present invention, LCD module 20 includes a plurality of characters/graphics display blocks 21 and a background section 22.A plurality of characters/graphics display blocks 21 constitution content districts.For ease of describing, the quantity of supposing alphabet/graphic presentation section 21 is N.The shape of this N characters/graphics display block 21 can be carried out different designs according to the product difference of using, and makes it become the required whole elements of displaying contents.Each section in above-mentioned N characters/graphics display block 21 and background section 22 are connected respectively to corresponding electrode, these electrodes link to each other with the output terminal of characters/graphics driving circuit 31, background area segment drive circuit 32 respectively again, about this point can be referring to Fig. 3 A-3C and Fig. 4 and associated description.What need to propose is, whole background section can be made of the many zonules on the LCD display plane, and these zonules that constitute whole background section all are electrically connected, and whenever drive with same signal, so be referred to as the background section.
Fig. 2 A shows the duty of the LCD module shown in Figure 1B under positive display mode: alphabet/graphic presentation section 21 shows normally that all background section 22 does not show.
Fig. 2 B shows the duty of the LCD module shown in Figure 1B under negative display mode: alphabet/graphic presentation section 21 does not show that background section 22 shows.
It should be noted that, be a kind of extreme state shown in Fig. 2 A and Fig. 2 B.In operate as normal, when being operated in positive display mode, may only need M characters/graphics display block 21 to show in N the characters/graphics display block 21, and remaining N-M characters/graphics display block and background section 22 do not show, thereby demonstrate required content.Corresponding to same displaying contents, when being operated in negative display mode, then opposite: 21 demonstrations of background section 22 an and above-mentioned N-M characters/graphics display block, and above-mentioned M characters/graphics display block 21 do not show.In addition, it should be noted that under positive display mode, content displayed (as numeral, literal, figure etc.) is located light tight, and the background printing opacity; And under negative display mode, content displayed place printing opacity, and background is light tight.
In Fig. 3 A, as previously mentioned, each section and background section 22 in N characters/graphics display block 21 are connected with corresponding electrode respectively.Shown in Fig. 3 B, when needing to show " 7 " this numeral under positive display mode, display driver circuit 30 is C2, C3, S3, S4 power supply, and remaining electrode is not all powered.And when showing " 7 " this numeral under negative display mode (as Fig. 3 C), display driver circuit 30 is the electrode power supply except that C2, C3, S3, S4, and electrode C2, C3, S3, S4 do not power.
As shown in Figure 4, in one embodiment of the invention, display driver circuit is made of 07014 TM8726 type IC chip and peripheral circuit thereof.By C3 and S30 output terminal background section 22 is controlled, N characters/graphics display block controlled by C1-C3 and S1-S41 output terminal.By COM6-COM9 backlight is controlled in addition.Also show the clock generation circuit that links to each other with display driver circuit, temperature sensing circuit, light intensity testing circuit, user interface circuit etc. among Fig. 4.As an embodiment, under " positive display mode " (white background black stroke), can be S30, C3 background: do not light, be the original white of LCD; S1 ~ S41, C1 ~ C3 stroke: light up black.And " anti-display mode " (black background white stroke) S30, C3 background: light up black; S1 ~ S41, C1 ~ C3 stroke: do not light, be the original white of LCD.
Below with reference to Fig. 7 display packing of the present invention is described.As shown in Figure 7, behind the display electrification reset, the display mode in the display driver circuit is selected and 36 pairs of display modes of control module are selected and the work of control character/graphics driver circuit 31, background area segment drive circuit 32 and backlight source driving circuit 33.If select first display mode, then the characters/graphics that will show in characters/graphics driving circuit 31, the background area segment drive circuit 32 driving screen content districts partly is first kind of state, and the other parts and the background area that drive content regions are second kind of state.If select second kind of display mode, then the characters/graphics that will show in characters/graphics driving circuit 31, the background area segment drive circuit 32 driving screen content districts partly is second kind of state, and the other parts and the background area that drive content regions are first kind of state.Wherein, first kind of state is light transmission state, and second kind of state is non-light transmission state.And under first kind of display mode, when the part that will show in the content regions was in first kind of state, the backlight work of selected color is selected and driven by backlight source driving circuit 33 to the color of display mode selection and 36 pairs of backlights of control module.
Selection mode to the selection mode of display mode and backlight can be referring to following explanation.
Get back to Fig. 5.Fig. 5 shows the synoptic diagram of LCD (circuit as shown in Figure 4) display mode control according to an embodiment of the invention.As shown in Figure 5, after step 510 powers on or resets, enter normal displaying mode (i.e. second display mode) in step 520.Three branches are below arranged.First branch: in step 532, when the user by user interface (being the user interface circuit 44 shown in Figure 1A), as button (being to press the SNOOZE/LIGHT key once in the present embodiment), when display mode (i.e. first display mode) is cracked down upon evil forces in selection, enter the display mode of cracking down upon evil forces (promptly negative display mode) in step 542, and after 5 seconds, automatically return to positive display mode.Second branch: in step 534, when the time of system clock (providing as the clock circuit among Figure 1A 41) indication arrives the start time of predefined noctilucence period, display driver circuit drives the LCD module and enters the display mode of cracking down upon evil forces (i.e. first display mode) and light backlightly in step 544, automatically return to positive display mode (i.e. second display mode) after the time that sets by noctilucence (as 6-10 hour) afterwards.The 3rd branch controls to enter or withdraw from the display mode (promptly negative display mode) of cracking down upon evil forces manually.In step 536, when the user pins predetermined button (being the SNOOZE/LIGHT key in as present embodiment) after the regular hour (as 8 seconds), display driver circuit drives the LCD module and enters the display mode of cracking down upon evil forces (promptly negative display mode) and light backlightly in step 546, rest on negative display mode afterwards.When pinning predetermined button (being the SNOOZE/LIGHT key in as present embodiment) once more, the user after the regular hour (as 8 seconds), turns back to positive display mode.
Fig. 6 shows the synoptic diagram of liquid crystal display displays pattern control according to another embodiment of the present invention.As shown in the figure, after step 610 powers on or resets, enter determining step 620, confirm whether be Sun..In this way, then enter step 632 and switch to red backlight mode, and backlight at step 652 shiny red; Otherwise enter step 634, then switch to green (or blue or other color) backlight mode, and in step 654 bright green or blue or other color is backlight.And in step 662 and step 664, judge whether to be Sun. once more respectively at 12:00AM every day (being 0:00 in morning).Shown in step 642 among Fig. 6 and 644, can also directly carry out switching controls by user interface and system clock information to backlight.
Except that above-mentioned display mode was selected control mode, as selection, multi-mode LCD of the present invention also can be designed to be able to select different display modes according to ambient light intensity, environment temperature.In this case, need light intensity testing circuit 42, temperature sensing circuit 43 shown in Figure 1A cooperate to come testing environment light intensity, environment temperature, and send testing result to display mode selection and control module 36.Select suitable display mode by the latter according to detecting data, and the information of selected display mode is sent to characters/graphics driving circuit 31, background area segment drive circuit 32 and backlight source driving circuit 33, with the operation of control character/graphics driver circuit 31, background area segment drive circuit 32 and backlight source driving circuit 33.As when extraneous light is strong, can be without backlight.And when extraneous light is more weak, can use backlight.And for example shown in Figure 6, the different dates is used the backlight of different colours, as selecting red backlight Sun. for use, selects other colour backlight source Monday to Saturday for use.For another example, when environment temperature was higher or lower than predetermined temperature, the backlight that can light certain color was with the announcement of warning.
In addition, as previously mentioned, display driver circuit 30 also is connected with storer 51 and external memory interface circuit 52.Can store games, ad content information in these storeies, can access and on display screen, show when needing.
Claims (10)
1, a kind of LCD device display method, described display comprises the backlight of display screen and at least a color, described display screen divides for content regions and background area of being made up of a plurality of characters/graphics sections, and described display display packing is characterised in that, may further comprise the steps:
Determine that current is first or second kind of display mode;
Under first kind of display mode, the characters/graphics that will show that drives in the screen content district partly is first kind of state, and the other parts and the background area that drive content regions are second kind of state;
Under second kind of display mode, the characters/graphics that will show that drives in the screen content district partly is second kind of state, and the other parts and the background area that drive content regions are first kind of state;
Wherein, first kind of state is light transmission state, and second kind of state is non-light transmission state; And when the part that will show in the content regions is in first kind of state, select and drive described backlight work.
2, LCD device display method according to claim 1 is characterized in that, described selection also drives described backlight work, comprises selecting a kind of in the above backlight of at least a color, drives its work.
3, LCD device display method according to claim 1 is characterized in that, described display mode is or/and the duty of backlight is definite according to current slot.
4, LCD device display method according to claim 1 is characterized in that, described display mode is or/and the duty of backlight is definite according to ambient light intensity.
5, LCD device display method according to claim 1 is characterized in that, described display mode is or/and the duty of backlight is definite according to environment temperature.
6, LCD device display method according to claim 1 is characterized in that, the duty of described display mode and backlight is according to being determined by the user instruction that receives.
7, LCD device display method according to claim 3 is characterized in that, when described backlight comprises two kinds of colors, describedly selects to comprise according to the time period: in the very first time of every day section, select first kind of display mode; In second time period of every day, select second kind of display mode; And when being operated under first kind of display mode, meet very first time section weekly, select the backlight of first kind of color; Meet second time period weekly, select the backlight of second kind of color.
8, LCD device display method according to claim 4 is characterized in that, when ambient light intensity during less than predetermined threshold value, keeps or is transformed into first display mode, selects and drive described backlight work.
9, LCD device display method according to claim 8 is characterized in that, described selection also drives described backlight work and comprises: meet very first time section weekly, select the backlight of first kind of color; Meet second time period weekly, select the backlight of second kind of color.
10, according to each described LCD device display method in the claim 1 to 9, it is characterized in that described displaying contents comprises in date, week, time, environment temperature, weather forecast, the prompting of schedule item, news recap, quotations on the stock market, advertisement, the game shows one or multinomial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101241594A CN101419780A (en) | 2007-10-26 | 2007-10-26 | Displaying method for liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101241594A CN101419780A (en) | 2007-10-26 | 2007-10-26 | Displaying method for liquid crystal display |
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| CN101419780A true CN101419780A (en) | 2009-04-29 |
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| CNA2007101241594A Pending CN101419780A (en) | 2007-10-26 | 2007-10-26 | Displaying method for liquid crystal display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009887A1 (en) * | 2010-07-22 | 2012-01-26 | 中兴通讯股份有限公司 | Method and device for controlling backlight of screen |
| CN108510948A (en) * | 2017-02-28 | 2018-09-07 | 昆山国显光电有限公司 | Active display and its control method |
| CN109324451A (en) * | 2018-09-12 | 2019-02-12 | 东莞通华液晶有限公司 | A kind of positive and negative figure conversion display liquid crystal display and upper and lower polarizer press the display methods of positive negative chart-pattern configuration |
| CN111327204A (en) * | 2018-12-13 | 2020-06-23 | 电力集成公司 | Apparatus and method for controlling switch drive signal after mode transition in switching power converter |
-
2007
- 2007-10-26 CN CNA2007101241594A patent/CN101419780A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009887A1 (en) * | 2010-07-22 | 2012-01-26 | 中兴通讯股份有限公司 | Method and device for controlling backlight of screen |
| CN108510948A (en) * | 2017-02-28 | 2018-09-07 | 昆山国显光电有限公司 | Active display and its control method |
| CN109324451A (en) * | 2018-09-12 | 2019-02-12 | 东莞通华液晶有限公司 | A kind of positive and negative figure conversion display liquid crystal display and upper and lower polarizer press the display methods of positive negative chart-pattern configuration |
| CN111327204A (en) * | 2018-12-13 | 2020-06-23 | 电力集成公司 | Apparatus and method for controlling switch drive signal after mode transition in switching power converter |
| US11901831B2 (en) | 2018-12-13 | 2024-02-13 | Power Integrations, Inc. | Apparatus and methods for controlling a switch drive signal following mode transitions in a switching power converter |
| CN111327204B (en) * | 2018-12-13 | 2024-04-30 | 电力集成公司 | Apparatus and method for controlling a switching drive signal after a mode transition in a switching power converter |
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Open date: 20090429 |