CN101916535A - Terminal equipment - Google Patents
Terminal equipment Download PDFInfo
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- CN101916535A CN101916535A CN 201010244608 CN201010244608A CN101916535A CN 101916535 A CN101916535 A CN 101916535A CN 201010244608 CN201010244608 CN 201010244608 CN 201010244608 A CN201010244608 A CN 201010244608A CN 101916535 A CN101916535 A CN 101916535A
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- lcd
- terminal device
- mainboard
- video data
- refresh
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Abstract
The embodiment of the invention discloses terminal equipment. The terminal comprises a liquid crystal display (LCD), a controller and a central processing unit (CPU), wherein the LCD is used for displaying video pictures according to the received video data; data lines and scanning lines of the LCD are led out from the wide side; the wide side of the LCD faces the top of the terminal equipment, while the narrow side faces the bottom of the terminal equipment; the controller is provided with a random access-memory (RAM) which is used for storing the next frame of video data to be displayed by the LCD; the controller is used for controlling the sending of the video data in the RAM to the LCD for refreshing the display; and the CPU is used for calculating the next frame of video data to be displayed by the LCD, and refreshing the video data stored in the RAM by using the next frame of video data. By reversing the LCD, on the premise of not improving the cost of the terminal equipment, the display visual angle of the LCD is widened, and the visual experience of a user is improved.
Description
Technical field
The present invention relates to the display technique field, particularly relate to a kind of terminal device.
Background technology
Since LCD (Liquid Crystal Displayer, LCD) have image quality good, alleviate that visual fatigue, effective area are big, electromagnetic-radiation-free, the advantage such as thin skilful, low in energy consumption of being well-proportioned, the display screen on terminal device adopts LCD more.
Along with the function of terminal device is constantly enriched, the consumption demand of terminal device is continuous rise also, causes the use amount of LCD also increasing.The display view angle of a LCD is just determined in design with when producing.Generally, the LCD visual angle on the existing terminal device that the user sees is smaller, has influenced user experience.
The inventor finds that there is following technical matters at least in prior art in realizing process of the present invention:
Existing terminal device all is to adopt LCD with great visual angle to realize if will enlarge the display view angle of LCD usually, promptly considers from LCD hardware, and this overall cost that will inevitably cause terminal device improves.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of terminal device, under the prerequisite that does not improve the terminal device cost, enlarges the display view angle of LCD.
The embodiment of the invention provides a kind of terminal device, and described terminal comprises LCD LCD, controller and central processor CPU;
Described LCD is used for according to the video data display video picture that receives; Data line and the sweep trace of described LCD are all drawn from the wide-brimmed side, and the broadside side of described LCD is towards the top of terminal device, and narrow avris is towards the bottom of terminal device;
Described controller also has random access memory ram; Described RAM is used to store the next frame video data that LCD is about to demonstration; Described controller is used for controlling video data with RAM and sends to LCD and refresh demonstration;
Described CPU is used to calculate the next frame video data that LCD is about to demonstration, and uses described next frame video data to refresh video data stored among the RAM.
The terminal device of the embodiment of the invention, on the basis that does not increase cost, utilize existing LCD from visual angle that narrow avris is watched the characteristic greater than the visual angle of watching from the wide-brimmed side, by with the LCD counter-rotating, enlarged the display view angle of LCD, improved user's visual experience.
Description of drawings
Fig. 1 is the synoptic diagram of existing LCD;
Fig. 2 is the structural representation of first embodiment of the terminal device of the embodiment of the invention;
Fig. 3 is the structural representation of second embodiment of the terminal device of the embodiment of the invention;
Fig. 4 is the synoptic diagram of the LCD of prior art;
Fig. 5 is the synoptic diagram of the LCD among the present invention;
Fig. 6 is the structural representation of the synchronous adjusting module of the embodiment of the invention;
Fig. 7 be the embodiment of the invention adjust that LCD refreshes and RAM refresh between synchronous schematic flow sheet;
Fig. 8 is the annexation synoptic diagram of existing LCD and mainboard;
Fig. 9 is the LCD of the embodiment of the invention and first kind of connected mode synoptic diagram of mainboard;
Figure 10 is the LCD of the embodiment of the invention and second kind of connected mode synoptic diagram of mainboard;
Figure 11 is the LCD of the embodiment of the invention and the third connected mode synoptic diagram of mainboard.
Embodiment
For above-mentioned purpose, the feature and advantage that make the embodiment of the invention can become apparent more, the embodiment of the invention is described in further detail below in conjunction with the drawings and specific embodiments.
Existing LCD as shown in Figure 1.The inventor finds in the long-term practice process: because the data line of LCD and sweep trace all are to be pooled to the broadside side to unify to draw again, consider the influence factor in the LCD manufacturing process, the LCD that finally produces at the visual angle of watching from the wide-brimmed side (promptly from the oblique visual angular range of screen method alignment broadside inclination, about 30 °) be less than from the visual angle (promptly from the angular range of the narrow avris inclined visible of screen method alignment, about 60 °) that narrow avris is watched.And terminal device is placed on the below of human eye when in use usually, and promptly the user normally removes to watch LCD from the wide-brimmed side.If can LCD is inverted, promptly the broadside side of LCD be towards the top of terminal device, and narrow avris is towards the bottom of terminal device, and then user's visual angle can be largely increased.
Embodiment one
Based on above-mentioned design, the embodiment of the invention provides a kind of terminal device, as shown in Figure 2, comprising:
LCD1, controller 2 and CPU3;
LCD1 is used for according to the video data display video picture that receives; Data line and the sweep trace of described LCD1 are all drawn from the wide-brimmed side, and the broadside side of described LCD1 is towards the top of terminal device, and narrow avris is towards the bottom of terminal device.The broadside side of LCD1 is furnished with FPC (Flexible Printed Circuit, flexible print circuit), and the other end of described FPC has golden finger, is used for being connected with connector on the mainboard.
CPU3 is used to calculate the next frame video data that LCD1 is about to demonstration, and uses described next frame video data to refresh video data stored among the RAM20.
CPU3 is responsible for various data and the timing clocking in the processes and displays process; Controller 2 is with reference to the clock signal of CPU3, is responsible for refreshing and showing of LCD1, and refreshes at LCD1 and to finish back notice CPU3, and CPU3 recomputates the next frame video data of LCD1 demonstration soon and refreshes video data stored among the RAM20.
The terminal device of present embodiment, on the basis that does not increase cost, utilize existing LCD from visual angle that narrow avris is watched the characteristic greater than the visual angle of watching from the wide-brimmed side, by with the LCD counter-rotating, enlarged the display view angle of LCD, improved user's visual experience.
Embodiment two
Present embodiment provides a kind of terminal device, and on the basis of the terminal device of embodiment one, referring to Fig. 3, controller 2 specifically can comprise: refresh direction module 21 and adjusting module 22 synchronously are set.
Referring to Fig. 4, the upper left corner, the upper right corner, the lower left corner of broadside side, the lower right corner of establishing the existing narrow avris of LCD are respectively a, b, c, d, and then the direction that refreshes of LCD is generally a → b → c → d.
Refreshing direction is provided with the direction that refreshes that module 21 is used to be provided with LCD1 and is the lower right corner to narrow avris, from the wide-brimmed side the upper left corner.
Because present embodiment (is the top of broadside side towards terminal device with the LCD1 counter-rotating, narrow avris is towards the bottom of terminal device), and don't the memory location of each pixel in RAM in the next frame video data of change demonstration soon, if do not adjust the direction that refreshes of counter-rotating back LCD, the phenomenon of the image handstand of LCD demonstration can appear.Therefore, need reset, image on the prior art LCD be stood upside down come, can make the lcd screen picture displayed direction after the counter-rotating normal like this direction that refreshes of LCD.
Because the LCD1 in the embodiment of the invention is identical with existing LCD, then the LCD after the counter-rotating as shown in Figure 5, after refreshing direction and module 21 is set resets, refresh direction and both can refresh according to the direction of d → c → b → a, also can refresh according to the direction of d → b → c → a.
Adjusting module 22 is used to adjust the synchronous mode of LCD1 synchronously, so that described synchronous mode is coordinated with refreshing mutually of LCD1.
Behind the refreshing direction and reset of LCD, also can run into a problem, be exactly the LCD procedure for displaying synchronously, if LCD does not carry out synchronously, the problem of screen appears splitting in the display frame meeting of counter-rotating LCD, influences visual effect.
As shown in Figure 6, described synchronous adjusting module 22 specifically can comprise first lock unit 221 and second lock unit 222.
Refresh the situation of identical with the RAM refresh pattern (promptly all adopt refresh line by line or by row refresh mode) for LCD, when first lock unit 221 refreshes at execution LCD, it reads the front of refreshing of refreshing the present frame video data that the front will be later than RAM of reading of present frame video data in RAM, and when LCD is near completion to refreshing of present frame video data, the next frame video data that coordination CPU3 calculating LCD is about to show refreshes RAM, and the refresh front of described next frame video data in RAM is later than first lock unit 221 reads the present frame video data in RAM the front of reading.So circulation, realization LCD refreshes the continuity with RAM refresh.Because the refresh rate of RAM is wanted the refresh rate faster than LCD far away, so first lock unit 221 can be avoided, and CPU refreshes RAM in the LCD refresh process, cause the not corresponding up and down phenomenon of picture displayed on the LCD.
Refresh in the process of LCD at first lock unit 221, because the time-delay of factors such as circuit and liquid crystal material, the somewhere data that read the present frame video data from first lock unit 221 among RAM refresh and finish that the demonstration of corresponding pixel points needs the regular hour on the LCD to LCD, therefore, 222 couples of LCD of second lock unit refresh and demonstration is coordinated, more next pixel is refreshed after making LCD finish the demonstration of a pixel.
Still be example with the LCD among Fig. 5, second lock unit 222 will guarantee that the pixel in same delegation/row begins refreshing of next pixel again after demonstration is finished, otherwise abnormal occurrencies such as variegated point appear in meeting on the display screen.
In synchronous adjustment process, use line synchronizing signal and field sync signal to finish synchronously.
Refresh the situation of different with the RAM refresh pattern (promptly adopt respectively refresh line by line and pursue the row refresh mode or adopt respectively by being listed as and refresh and refresh mode line by line) for LCD, after then needing the intact present frame video data of RAM refresh, first lock unit 221 reads the present frame video data among the RAM again and refreshes LCD, after LCD has refreshed the present frame video data, coordinate CPU3 again and calculate the next frame video data of LCD demonstration soon and refresh RAM.
Adjusting module 22 is adjusted need the associated drives code of controller be made amendment synchronously between refreshing of counter-rotating LCD and the RAM refresh synchronously.A concrete example is provided below, wherein the direction that refreshes with LCD is example for lining by line scan to the upper left corner of narrow avris from the lower right corner of the broadside side of LCD, when then each row from left to right being refreshed, controller can produce a line synchronizing signal, and described line synchronizing signal is used for guaranteeing that the pixel with delegation from left to right refreshes.Delegation refresh finish after, can produce a field sync signal, described field sync signal is used for guaranteeing that the pixel of same row refreshes from top to bottom.As shown in Figure 7, synchronously adjusting module 22 is adjusted and is comprised following process synchronously between refreshing of counter-rotating LCD and the RAM refresh:
S101 is provided with the maximum number of column that capable count value is LCD, and a count value is the maximum number of lines of LCD.
Wherein, going a count value and count value is two dynamic parameters that use in the LCD refresh process.For example, for the LCD of one 1024 * 768 pixel, the initial value of a row count value and a count value is respectively 1024 and 768.
S102 refreshes a former LCD current line count value and a pixel of count value correspondence, and the row count value subtracts 1.
S103 judges whether the row count value is 0;
If not, then re-execute step S102;
If execution in step S104 then: a count value subtracts 1;
S105 judges whether a count value is 0;
If not, execution in step S106 then: produce line synchronizing signal, and will go count value and be made as the maximum number of column of described LCD;
If, execution in step S107 then: produce field sync signal, afterwards, execution in step S101 once more.
The connected mode of the mainboard of existing terminal device and the FPC of LCD as shown in Figure 8.Because the counter-rotating of the LCD in the embodiment of the invention, can cause the connectivity problem of mainboard and LCD on the terminal device that adopts counter-rotating LCD at hardware aspect, to this, the embodiment of the invention provides following three kinds of settling modes:
1) the slot direction of change mainboard FPC (Flexible Printed Circuit, flexible printed circuit board) connector is come the outlet direction of adaptive LCD.
The manner adapts to the variation of LCD outlet direction by the slot direction of change FPC connector.Referring to Fig. 9, the top of mainboard is towards the top of terminal device, and the bottom of mainboard is towards the bottom of terminal device, and the back side of LCD is positive relative with mainboard.FPC connector is positioned at the mainboard back side of terminal device, and the slot of described FPC connector is towards the top of mainboard, and the FPC of described LCD walks around the slot that the mainboard top is plugged into described FPC connector from the mainboard front.
2) way of contact of the FPC golden finger of change mainboard FPC connector and LCD.
The mainboard FPC connector can be adjusted into and contact (being that the side that contacts with the FPC golden finger of FPC connector is back to LCD) or contact down (being that the side that contacts with the FPC golden finger of FPC connector is over against LCD) with the way of contact of the FPC golden finger of LCD, need not change the slot direction of FPC connector.
As shown in figure 10, the FPC connector of described terminal device is positioned at the mainboard back side of terminal device, and the slot of described FPC connector is towards the bottom of mainboard, and the FPC of described LCD walks around from the mainboard front the slot that the mainboard bottom is plugged into described FPC connector to the back of turning back, the back side of LCD.
The golden finger that can be LCD constant (be FPC when open and flat golden finger towards the front of LCD) changes down the way of contact of FPC connector into contact; Or the golden finger of LCD is arranged on towards the back side of LCD, and the way of contact of FPC connector still is last contact.
3) on the rigid printed circuit board of mainboard, increase and window.
Thus, FPC can pass windowing of increase, transfers to the volume that the back side also can not influence terminal device from the mainboard front.
As shown in figure 11, the FPC connector of described terminal device is positioned at the mainboard back side of terminal device, the slot of described FPC connector is towards the top of mainboard, described mainboard also has between mainboard top and FPC connector windows, and the FPC of described LCD passes to window from the mainboard front and is plugged into the slot of described FPC connector.
The terminal device of present embodiment, utilize existing LCD from visual angle that narrow avris is watched the characteristic greater than the visual angle of watching from the wide-brimmed side, by LCD is reversed, and corresponding adjust counter-rotating LCD refresh with procedure for displaying synchronously, adopt original LCD to realize under the prerequisite that does not improve the terminal device cost, enlarge the display view angle of LCD, improved user's visual experience.
Embodiment three
Present embodiment provides a kind of terminal device, and on the basis of the terminal device of embodiment one, described CPU also is used for described next frame video is reversed, the video data of the video data among the then described RAM after for counter-rotating.
Because the video data among the RAM has carried out identical counter-rotating with LCD, therefore, the picture on the LCD shows normal.Code in the controller need not adjusted, and just needs CPU to reverse calculating the next frame video, has increased the computation burden of CPU, and therefore, present embodiment increases to the requirement of CPU computing power.
The terminal device of present embodiment, utilize existing LCD from visual angle that narrow avris is watched the characteristic greater than the visual angle of watching from the wide-brimmed side, by LCD is reversed, and flush among the RAM after utilizing the next frame video data counter-rotating of CPU LCD demonstration soon, adopt original LCD to realize under the prerequisite that does not improve the terminal device cost, enlarge the display view angle of LCD, improved user's visual experience.
Need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (8)
1. a terminal device is characterized in that, described terminal comprises LCD LCD, controller and central processor CPU;
Described LCD is used for according to the video data display video picture that receives; Data line and the sweep trace of described LCD are all drawn from the wide-brimmed side, and the broadside side of described LCD is towards the top of terminal device, and narrow avris is towards the bottom of terminal device;
Described controller also has random access memory ram; Described RAM is used to store the next frame video data that LCD is about to demonstration; Described controller is used for controlling video data with RAM and sends to LCD and refresh demonstration;
Described CPU is used to calculate the next frame video data that LCD is about to demonstration, and uses described next frame video data to refresh video data stored among the RAM.
2. terminal device as claimed in claim 1 is characterized in that, described controller comprises:
Refresh direction module is set, the direction that refreshes that is used to be provided with LCD is the lower right corner to narrow avris, from the wide-brimmed side the upper left corner;
Synchronous adjusting module is used to adjust the synchronous mode of described LCD, so that the coordination mutually that refreshes of described synchronous mode and LCD.
3. terminal device as claimed in claim 2 is characterized in that, described synchronous adjusting module comprises:
First lock unit, be used to adjust described LCD refresh and RAM refresh between synchronously;
Second lock unit, be used to adjust described LCD refresh and the demonstration of LCD between synchronously.
4. terminal device as claimed in claim 1 is characterized in that, described CPU also is used for: described next frame video is reversed, and the video data among the then described RAM is the video data after reversing.
5. as each described terminal device of claim 1-4, it is characterized in that, described LCD refresh the direction of reading of data and RAM to refresh direction identical or different.
6. as each described terminal device of claim 1-4, it is characterized in that, the flexible print circuit FPC connector of described terminal device is positioned at the mainboard back side of terminal device, and the slot of described FPC connector is towards the top of mainboard, and the FPC of described LCD walks around the slot that the mainboard top is plugged into described FPC connector from the mainboard front.
7. as each described terminal device of claim 1-4, it is characterized in that, the flexible print circuit FPC connector of described terminal device is positioned at the mainboard back side of terminal device, and the slot of described FPC connector is towards the bottom of mainboard, and the FPC of described LCD walks around from the mainboard front the slot that the mainboard bottom is plugged into described FPC connector to the back of turning back, the back side of LCD.
8. as each described terminal device of claim 1-4, it is characterized in that, the flexible print circuit FPC connector of described terminal device is positioned at the mainboard back side of terminal device, the slot of described FPC connector is towards the top of mainboard, described mainboard also has between mainboard top and FPC connector windows, and the FPC of described LCD passes to window from the mainboard front and is plugged into the slot of described FPC connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010244608 CN101916535B (en) | 2010-08-02 | 2010-08-02 | Terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010244608 CN101916535B (en) | 2010-08-02 | 2010-08-02 | Terminal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101916535A true CN101916535A (en) | 2010-12-15 |
| CN101916535B CN101916535B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010244608 Expired - Fee Related CN101916535B (en) | 2010-08-02 | 2010-08-02 | Terminal equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107046A1 (en) * | 2015-01-04 | 2016-07-07 | 京东方科技集团股份有限公司 | Display device and array substrate |
| CN105872547A (en) * | 2016-04-20 | 2016-08-17 | 北京小鸟看看科技有限公司 | Image processing method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050286000A1 (en) * | 2004-06-24 | 2005-12-29 | Au Optronics Corp. | Adjustable-viewing-angle liquid crystal display |
| US20070069978A1 (en) * | 2005-09-29 | 2007-03-29 | Casio Computer Co., Ltd. | Surface light source and liquid crystal display apparatus |
| WO2007139193A1 (en) * | 2006-05-31 | 2007-12-06 | Sharp Kabushiki Kaisha | Display and filed-of-view angle control device used in the same |
-
2010
- 2010-08-02 CN CN 201010244608 patent/CN101916535B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050286000A1 (en) * | 2004-06-24 | 2005-12-29 | Au Optronics Corp. | Adjustable-viewing-angle liquid crystal display |
| US20070069978A1 (en) * | 2005-09-29 | 2007-03-29 | Casio Computer Co., Ltd. | Surface light source and liquid crystal display apparatus |
| WO2007139193A1 (en) * | 2006-05-31 | 2007-12-06 | Sharp Kabushiki Kaisha | Display and filed-of-view angle control device used in the same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107046A1 (en) * | 2015-01-04 | 2016-07-07 | 京东方科技集团股份有限公司 | Display device and array substrate |
| US10204574B2 (en) | 2015-01-04 | 2019-02-12 | Boe Technology Group Co., Ltd. | Display device and array substrate |
| CN105872547A (en) * | 2016-04-20 | 2016-08-17 | 北京小鸟看看科技有限公司 | Image processing method and device |
| CN105872547B (en) * | 2016-04-20 | 2019-07-26 | 北京小鸟看看科技有限公司 | A kind of image processing method and device |
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| Publication number | Publication date |
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| CN101916535B (en) | 2013-01-02 |
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