CN102103281B - Liquid crystal panel device with embedded element and design method thereof - Google Patents
Liquid crystal panel device with embedded element and design method thereof Download PDFInfo
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- CN102103281B CN102103281B CN200910259223.9A CN200910259223A CN102103281B CN 102103281 B CN102103281 B CN 102103281B CN 200910259223 A CN200910259223 A CN 200910259223A CN 102103281 B CN102103281 B CN 102103281B
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Abstract
The invention provides a liquid crystal panel device with an embedded element and a design method thereof. The design method of the liquid crystal panel with the embedded element comprises the following steps of: providing a range in which a backlight frequency spectrum can be adjusted; and designing the area proportion of sub-pixels occupied by the embedded element and a reading wire of the liquid crystal panel according to the range in which the backlight frequency spectrum can be adjusted.
Description
Technical field
The present invention relates to time elemental area layout and method for designing, particularly a kind of LCD panel device and method for designing thereof with embedded element in a kind of LCD panel device.
Background technology
Because contact panel can be applicable on portable product and has advantages of user-friendly for operation, and contribute to be widely used in various electronic product, include personal digital assistant (personal digital assistant, PDA), palmtop computer (palm sized PC), mobile phone, hand input device, information household appliances (Information appliance), automatic financial machine (automated teller machine, ATM) and storefront sell automatic teller machine (point of sale, POS) etc.Portable communication and consumption electronic products quantity increase day by day, and this series products will use contact panel as its input media in a large number, therefore have in recent years many dealers to drop into the technical development relevant with contact panel.
Fig. 1 shows a kind of vertical view of active device substrate of touch-control liquid crystal display, compared to general liquid crystal display, in the inferior pixel 104 of touch-control liquid crystal display 102 except the transistor 110 as pixel switch, also need additionally to form sensing element 106 and read line 108, as the induction installation of touch panel, but sensing element 106 and read line 108 can occupy inferior pixel 104 areas of part, and other pixel 103 in the more same pixel 101 of the light openings rate that causes time pixel, 105 aperture opening ratio is low, easy speech, no matter sensing element 106 is formed in any pixel region, capital reduces the brightness of place time pixel, cause the reference white coordinate offset of end product.
According to above-mentioned, one known technology provides a kind of inferior elemental area allocation scheme, in order to solve the problem of above-mentioned colour cast, Fig. 2 shows the vertical view of active device substrate in this technology light sense touch control formula liquid crystal display, and in diagram, pixel 202 comprises red time pixel 204, green time pixel 206 and blue sub-pixels 208.Because embedded thin film transistor 210 and read line 212 can occupy part time elemental area, cause inferior pixel region aperture opening ratio reduction at its place, make luminance loss and produce the problem of standard white distortion.Therefore, this technology, in the time of Pixel Design, namely, in the time forming sweep trace and signal wire, is adjusted the area of the inferior pixel of its definition, to compensate aperture opening ratio that formation the is caused loss because comprising the transistorized light-sensing region of embedded thin film and read line.Give red time pixel 204, green time pixel 206 and blue sub-pixels 208 by remaining elemental area average mark.By redistributing of pixel region area, make each pixel can obtain same area, avoid occupying because of embedded thin film transistor the area of part time pixel, and cause the problem of standard white distortion, do not need to compensate colour cast by the adjustment of chromaticity coordinates.Although above-mentioned technology has solved the problem of standard white distortion, this technology can cause brightness degradation.For example, when embedded thin film transistor 210 and the occupied area of read line 212 are six of pixel 202 total areas/for the moment, residual area is again by red time pixel 204, green time pixel 206 and blue sub-pixels 208 mean allocation, and now brightness performance is only 87% of general panel (the liquid crystal panel of embedded thin film transistor AND gate read line is not set).
In view of this, need the method for designing of a novelty for this kind of embedded touch control panel industry, to solve degradation problem under standard white distortion and panel luminance simultaneously.
Summary of the invention
According to the problems referred to above, the invention provides a kind of method for designing of embedded touch control panel, comprising: provide a frequency spectrum backlight adjustable scope; Design one embedded element of embedded touch control panel and the area ratio of occupied pixel of a read line, wherein in the time of design embedded touch control panel, according to the adjustable scope of frequency spectrum backlight, adjust an embedded element and read line shared pixel for the first time, a pixel and area ratio for pixel for the third time for the second time.
The invention provides a kind of embedded touch control panel, comprising: a pixel, comprise at least three time pixels, above-mentioned pixel comprises pixel, pixel and pixel for the third time for the second time for the first time; One embedded element and a read line, wherein embedded element and read line footprint area are A, occupy again this for the first time the area of pixel be A
1, occupy this for the second time the area of pixel be A
2, occupy this for the third time the area of pixel be A
3, wherein A
1, A
2and A
3sum total is A, again A
1, A
2and A
3in at least both are not 0.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below:
Brief description of the drawings
Fig. 1 shows a kind of vertical view of active device substrate of known induction type liquid crystal display.
Fig. 2 shows the vertical view of active device substrate in a known induction type liquid crystal display.
Fig. 3 shows the process flow diagram of the method for designing of embedded touch control panel of the present invention.
Fig. 4 A shows that the present invention first implements the exemplary vertical view of example.
Fig. 4 B shows that the present invention second implements the exemplary vertical view of example.
Fig. 5 shows that the present invention first implements the exemplary cross-sectional of example.
[main element symbol description]
101～pixel; 105～inferior pixel;
102～sense touch-control liquid crystal display; 103～inferior pixel
104～inferior pixel; 105～inferior pixel
106～sensing element; 108～read line;
110～transistor; 202～pixel;
204～red time pixel; 206～green time pixel;
208～blue sub-pixels; 210～embedded thin film transistor;
212～read line; 400～LCD panel device;
401～LCD panel device; 402～gate line;
404～data line; 406～read line;
408～embedded element; 412～red pixel;
414～green pixel; 416～blue pixel;
501～lower-glass base material; 522～filter layer;
524～filter layer; 526～filter layer;
528～black matrix".
Embodiment
The invention provides a kind of method for designing of embedded touch control panel, although make embedded element and read line in embedded touch control panel can occupy the inferior elemental area of part, but still can make white chroma point remain on a specification chromaticity coordinates, and reduce as far as possible panel penetrance and occupy the loss that the inferior elemental area of part causes because of embedded element and read line, that is, make luminance loss drop to minimum.
Fig. 3 illustrates the process flow diagram of the method for designing of embedded touch control panel of the present invention, please refer to step S102, one liquid crystal panel with embedded element is provided, its embedded element is configured in elemental area, this elemental area comprises pixel at least three times, it at least comprises pixel for the first time, pixel and for the third time pixel for the second time.In an embodiment of the present invention, pixel is red for the first time, and pixel is green for the second time, and pixel is blue for the third time, but not as limit.Step S104 is for providing a frequency spectrum backlight (backlight spectrum) adjustable scope, the light source composition that this configures according to each liquid crystal panel and characteristic and different.For reference data, and taking the condition of following two embodiment and comparative example as example, obtain the spectral chroma point coordinate of the corresponding back of the body as shown in table 1 with frequency spectrum chroma point backlight (0.311,0.294).Then, step S106 determines embedded element and the occupied size (be designated hereinafter simply as and introduce area) of read line, this embedded element can be any functional element being embedded in liquid crystal panel pixel cell, various embedded unit such as such as photo-sensitive cell or sensing element etc., depending on embedded element design, can comprise and the control module of this functional element interlock, for example, by the on-off element of induced signal output.Finally, principle taking panel luminance loss amount and white pigment point side-play amount as minimum value, according to the adjustable scope of frequency spectrum backlight, attempt adjusting the area ratio of each pixel, obtain after adjusting distribution and introduce the shared pixel for the first time of area, pixel and for the third time area ratio of pixel (step S108) for the second time.Otherwise, cannot change because of other factors if introduce area that area occupies each pixel, also can extrapolate required spectral range backlight by red bluish-green fixing inferior elemental area ratio.
Fig. 4 A and Fig. 4 B are the first embodiment of LCD panel device and the exemplary vertical view of the second embodiment that the present invention has embedded element.According to the LCD panel device 400 of the first embodiment of the present invention, there are many gate lines 402 and be a direction and extend, and many data lines 404 are crossing with these gate lines 402, to define pixel region multiple times.Separately have one with the read line 406 of data line configured in parallel, be electrical connected with embedded element 408.Alleged inferior pixel region or inferior elemental area herein, means to remove each time overseas pixel openings region of opacity.In general display panels, the top of this open area covers respectively to have redness, green and blue color filter layer conventionally, and forming red pixel 412, green pixel 414 and blue pixel 416 to realize color, this RGB look time pixel region forms a pixel region 418.RGB look in same pixel region time elemental area is different, the inferior pixel region that makes different colours on it corresponding filter layer area also along with difference, there is corresponding proportionate relationship but those skilled in the art should understand each elemental area with the filter layer area on it.Therefore, LCD panel device of the present invention is in order to make to be placed in the embedded element of panel array, the unlikely original chroma-luminance of this panel that has a strong impact on shows, and designs the suitable area of each color time pixel according to frequency spectrum backlight, just makes different colours time elemental area present different big or small.Should understand that covering all RGBs time elemental area on this panel compares with time elemental area of RGB different colours in same pixel than identical.For example, suppose that embedded element and read line footprint area are 0.5, maximum color time pixel openings area is 1 o'clock again, and another two kinds of colors time elemental area respectively must be less than 1, but is greater than 0.5.Preferably, maximum inferior elemental area is 1 o'clock, and another two kinds of colors time elemental area ratio can be 0.7: 0.8, so not as limit.For example, time different the presenting of elemental area of each color, can adjust from the distance of the x direction of each pixel openings (parallel along gate line), but distance between gate line still remains unchanged, and please refer to Fig. 5.Now each elemental area is than the Length Ratio that just equals its x direction.
Fig. 5 illustrates figure, the i.e. sectional view of the first embodiment along the square section of the dotted line direction of the X-X ' in Fig. 4 A.According to the LCD panel device 400 of the first embodiment of the present invention, it comprises glass baseplate 501, and on lower-glass base material, has two adjacent gate lines 402 and two adjacent data lines 404 around forming a pixel region.Liquid crystal panel display frame be to form by these pixel, each pixel needs to change independently GTG, therefore each pixel electrode (as label 412,414 and 416) is individually independently, be launched into array in two-dimentional mode again, and the pixel electrode of corresponding group can for example, be associated with 526 (RGBs) with each filter layer 522,524.Black matrix" 528 between each filter layer can be made up of opaque material, makes the unlikely thin film transistor (TFT) that is irradiated to of surround lighting.Fig. 5 is only for illustrating embedded element possible schematic diagram in panel construction, embedded element 408 in LCD panel device of the present invention is functional and characteristic according to it, likely be configured in this black matrix" completely or partial configuration in this black matrix", also be likely configured in filter layer, photic zone (for example planarization layer) below or be positioned at an opening below, but not as limit.
Similarly, LCD panel device 401 according to a second embodiment of the present invention, has many gate lines 402 and be a direction and extend, and many data lines 404 is crossing with these gate lines 402, to define pixel region multiple times.Separately have one with the read line 406 of data line configured in parallel, be electrical connected with embedded element 408.Time different the presenting of elemental area of each color, can adjust from the distance of the y direction of each pixel openings (parallel along data line), for example pixel 416 in Fig. 4 B.Also the distance that another pixel in same pixel can be done simultaneously to x direction (parallel along gate line) adjusts, as the pixel 414 of Fig. 4 B.
The desired white chromaticity coordinate value that reaches standard of known at present general panel is (0.313,0.329), please refer to the desired value on following table rightmost one hurdle, is the white chromaticity coordinates value of at present general panel institute's foundation in the time dispatching from the factory.Between existing panel tolerable variation range circle in 0.002 to 0.003, when white chroma point exceedes this scope, the performance that makes panel color is had to deviation, and cause panel showing that on image, color occurring changes.
The 1st table
Following examples are with reference to CIE 1931 standard spectrum power diagrams with comparative example and coordinate the flow process shown in Fig. 3, through the result that checking obtains many times.Below now by specific embodiment, be described in further detail Characteristic of the present invention.Only these implementation details are only in order to feature of the present invention to be described, but not in order to limit the scope of the invention.
[specific embodiment]
1 red elemental area of embodiment: green time elemental area: blue sub-pixels area=0.8: 1: 0.7
Suppose that each elemental area is 1 (100%), the occupied size (be designated hereinafter simply as and introduce area) of embedded element and read line is nearly 0.5 times of single elemental area.Consider green time pixel the highest to Y value contribution proportion, therefore first attempt a set of lead-in surface integration of design and do not occupy red time elemental area 20%, occupy blue sub-pixels area 30%, meaning i.e. green time pixel still maintains identical aperture opening ratio, and redness is respectively 80% and 70% before embedded element is not set with blue sub-pixels aperture opening ratio.With reference to the design cycle of figure 3, measure brightness and white chromaticity coordinate point, and compare with the liquid crystal face degree that does not generally configure embedded element, to calculate the difference of x and y, as shown in the 1st table.Compare with reference white chromaticity coordinate value, the difference of its x coordinate (Δ x) be very much two, owing to meeting tolerable scope therefore with null representation, the difference of y coordinate (Δ y) be about thousand points two.
2 red elemental areas of embodiment: green time elemental area: blue sub-pixels area=0.7: 1: 0.8
If lead-in surface integration does not occupy red time elemental area 30%, occupy blue sub-pixels area 20%, the i.e. green time pixel of anticipating still maintains identical aperture opening ratio, and red and blue sub-pixels aperture opening ratio is respectively 70% and 80% before embedded element is not set.With reference to the design cycle of figure 3, measure brightness and white chromaticity coordinate point, and compare with the liquid crystal face degree that does not generally configure embedded element, to calculate brightness down ratio, as shown in the 1st table.Compare with reference white chromaticity coordinate value, the difference of its x coordinate (Δ x) be about very much seven, therefore owing to meeting tolerable scope with null representation, (Δ y) is about per mille to the difference of y coordinate.
1 red elemental area of comparative example: green time elemental area: blue sub-pixels area=0.5: 1: 1
If as known technology only designs embedded element and read line in the block of red time pixel, red time elemental area is 50%, blue sub-pixels still maintains equal area with green time pixel.Measure its brightness and white chromaticity coordinate point, and compare with the liquid crystal face degree that does not generally configure embedded element, to calculate brightness down ratio, as shown in the 1st table.Compare with reference white chromaticity coordinate value, the difference of its y coordinate (Δ y) is about 0.0015, however the difference of x coordinate (Δ is x) 0.021, far exceeds 0.002 to 0.003 of tolerable scope.
2 red elemental areas of comparative example: green time elemental area: blue sub-pixels area=1: 1: 0.5
If as known technology only designs embedded element and read line in the block of blue sub-pixels, blue sub-pixels area is 50%, red time pixel still maintains equal area with green time pixel.Measure its brightness and white chromaticity coordinate point, and compare with the liquid crystal face degree that does not generally configure embedded element, to calculate brightness down ratio, as shown in the 1st table.Compare with reference white chromaticity coordinate value, the difference of its x coordinate (though Δ is x) per mille, however the difference of y coordinate (Δ is y) 0.017, still far exceeds tolerable scope.
As from the foregoing, embedded element and read line only occupy the design of solid color time elemental area, be comparative example 1 and comparative example 2, after adjustment frequency spectrum backlight, still can not make white chromaticity coordinate approach target color coordinates value (0.313,0.329),, according to the adjustable scope of frequency spectrum backlight, adjust the design of at least two colors time elemental area, be embodiment 1 and embodiment 2, all can make white chromaticity coordinate approach target color coordinates value.Taking this specific embodiment condition as example; do not get rid of and have other to approach equally may combining of target color coordinates value; as long as in the adjustable scope of frequency spectrum backlight; those skilled in the art can select minimum luminance loss's combination conventionally, have best color and brightness performance so that have the panel of embedded element.Because shades of colour time pixel respectively has its contribution for the color representation of liquid crystal panel entirety, but the present invention only illustrates the allotment of red blue two kinds of colors time elemental area, those skilled in the art should understand can be optionally two kinds of color time elemental areas wherein, also or all colours time elemental area is all included in to adjust and consider.In addition, embedded element and read line area occupied will be different along with its functional and technical development, above-described embodiment is to disclose for convenience technological means of the present invention, and those skilled in the art can understand other advantages of the present invention and effect easily by content disclosed in the present specification.
Although the present invention discloses preferred embodiment as above; so it is not in order to limit the present invention, those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when defining and be as the criterion depending on appended claims.
Claims (10)
1. the embedded element of configuration is in a method for designing for liquid crystal panel, and this liquid crystal panel comprises multiple pixels, and this pixel comprises at least one redness time pixel, a blue sub-pixels and one green pixel, and the method comprises:
A) provide a frequency spectrum backlight adjustable scope, the light source composition configuring according to this liquid crystal panel is different from characteristic; And
B) to reduce luminance loss as principle as far as possible, according to the adjustable scope of this frequency spectrum backlight, determine that an introducing area of this liquid crystal panel occupies the area ratio of each pixel, wherein this introducing area comprises an embedded element and a read line,
Wherein, adjust embedded element and read line and occupy the design of at least two colors time elemental area, to make white chromaticity coordinate fall into the x coordinate figure of target chromaticity coordinate value (0.313,0.329) and y coordinate figure is each changes in 0.003 scope.
2. method for designing as claimed in claim 1, wherein the step of the method b) is only adjusted this introducing area and occupies the area ratio of this redness time pixel and this blue sub-pixels, and this introducing area does not occupy the area of this green time pixel.
3. method for designing as claimed in claim 1, wherein this target color coordinates value is (0.313,0.329).
4. method for designing as claimed in claim 1, wherein this embedded element is the embedded element of photosensitizing type.
5. method for designing as claimed in claim 1, wherein this embedded element is the embedded element of pressure sensing type.
6. a LCD panel device with embedded element, comprising:
One pixel, comprises at least three time pixels, and these pixel comprises pixel, pixel and pixel for the third time for the second time for the first time; And one introduce area, comprise an embedded element and a read line, this introducing area footprint area is A, wherein occupy this for the first time the area of pixel be A
1, occupy this for the second time the area of pixel be A
2, occupy this for the third time the area of pixel be A
3, wherein A
1, A
2and A
3sum total is A, again A
1, A
2and A
3in at least both are not 0, wherein A is less than the half of arbitrary elemental area.
7. device as claimed in claim 6, wherein this for the first time pixel be red, this for the second time pixel be green, this for the third time pixel be blueness.
8. device as claimed in claim 6, wherein A
1, A
2and A
3each unequal.
9. device as claimed in claim 6, wherein this A
1equal substantially 30%, this A
2equal substantially 0%, this A
3equal substantially 20%.
10. device as claimed in claim 6, wherein defines the distance difference between the adjacent data line of each elemental area in a pixel.
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|---|---|---|---|
| CN200910259223.9A CN102103281B (en) | 2009-12-16 | 2009-12-16 | Liquid crystal panel device with embedded element and design method thereof |
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| CN1941921A (en) * | 2005-09-30 | 2007-04-04 | 电子科技大学 | Method for balancing blended color |
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| US5793345A (en) * | 1994-03-11 | 1998-08-11 | Canon Kabushiki Kaisha | Dynamic refinement of pixels for a display |
| CN1708776A (en) * | 2002-11-06 | 2005-12-14 | 佳能株式会社 | Color display element, method for driving color display element, and display apparatus having color display element |
| CN1719312A (en) * | 2004-12-09 | 2006-01-11 | 友达光电股份有限公司 | Display and method for improving display quality |
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