CN106531101B - Display panel and display device with the display panel - Google Patents
Display panel and display device with the display panel Download PDFInfo
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- CN106531101B CN106531101B CN201611161533.3A CN201611161533A CN106531101B CN 106531101 B CN106531101 B CN 106531101B CN 201611161533 A CN201611161533 A CN 201611161533A CN 106531101 B CN106531101 B CN 106531101B
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- 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
- G09G3/36—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 using liquid crystals
- G09G3/3607—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 using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention discloses a kind of display panel and display device.The display panel includes the driving unit of multiple pixels and the multiple pixel of driving, each pixel includes multiple first sub-pixels and second sub-pixel, multiple first sub-pixels include red sub-pixel, green sub-pixels and blue subpixels, second sub-pixel is white sub-pixels, driving unit drives the first sub-pixel according to the first gamma curve, and the second sub-pixel is driven according to the first gamma curve or the second gamma curve, when showing pure color picture, driving unit drives some in multiple first sub-pixels according to the first gamma curve, and the second sub-pixel is driven according to the second gamma curve；When showing pure white picture, driving unit drives multiple first sub-pixel and second sub-pixel according to the first gamma curve, will not reduce so as to improve transmitance and excessively color saturation and display panel is made to have the advantages that light efficiency is high, pure color colour rendering is relatively high and power consumption is lower.
Description
Technical field
The present invention relates to field of display technology, and more particularly to a kind of display panel and the display with the display panel fills
It sets.
Background technique
Currently, in the RGB type LCD display with red sub-pixel (R), green sub-pixels (G) and blue subpixels (B)
In, the light of backlight has a big chunk light that cannot penetrate after R color blocking, G color blocking, B color blocking, such as backlight passes through B color
Feux rouges and green light composition are filtered when resistance, result in LCD display to a certain extent and have the shortcomings that brightness it is low/power consumption is big.Cause
This, which has developed, has red sub-pixel (R), green sub-pixels (G), the RGBW type of blue subpixels (B) and white sub-pixels (W)
LCD display, part of back almost can improve the brightness of LCD display, and can all through white sub-pixels (W)
To reduce power consumption.
However, the saturation degree that may cause the pure color in image is disliked due to increasing W sub-pixel in tetra- colour system of RGBW system
The problems such as change, such as when showing R, G, B pure color picture using R, G, B sub-pixel, since the addition of W sub-pixel is so that R, G, B are sub
Pixel Dimensions size reduces, aperture opening ratio decline, so that picture brightness is relatively low；When using the display of R+W, G+W, B+W sub-pixel R, G, B
When pure color picture, since the addition of W sub-pixel is so that color saturation (NTSC) decline of display picture is serious；It participates in W in pure
In the mode that color is shown, since the addition of W sub-pixel in RGB color saturation degree triangle so that joined one piece of W sub-pixel
Area needs to guarantee that the most bright pure color picture (L255) of R, G, B have the color saturation for meeting product specification and showing demand
Increase R, G, B sub-pixel NTSC displayed separately (being shown at this time without such independent RGB sub-pixel in practice), such as display needs
The NTSC asked will keep 70%, then the thickness for needing to increase the color blocking of R, G, B sub-pixel makes R, G, B sub-pixel displayed separately
NTSC tends to 90% (as shown in Figure 1), however the increase of the color blocking thickness of RGB sub-pixel can greatly reduce R, G, B sub-pixel
Transmitance if promoting this transmitance by W sub-pixel, and can reduce NTSC.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of display panel and with the display device of the display panel,
So that sub-pixel transmitance is high and display panel has the advantages that light efficiency is high, pure color colour rendering is relatively high and power consumption is lower.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of display panel is provided, it is described aobvious
Show that panel includes the driving unit of multiple pixels and the multiple pixel of driving, each pixel include multiple first sub-pixels and
One the second sub-pixel, the multiple first sub-pixel include red sub-pixel, green sub-pixels and blue subpixels, and described
Two sub-pixels are white sub-pixels, and the driving unit drives first sub-pixel according to the first gamma curve, and presses
Second sub-pixel is driven according to the first gamma curve or the second gamma curve, when showing pure color picture, the driving is single
Member drives some in the multiple first sub-pixel according to first gamma curve, and according to second gamma
Curve drives second sub-pixel；When showing pure white picture, the driving unit drives according to first gamma curve
Move the multiple first sub-pixel and second sub-pixel.
Wherein, the range of the second gamma value of the first gamma value of first gamma curve and second gamma curve
Between 1.8 to 2.6.
Wherein, show the brightness of the second sub-pixel described in pure color picture lower than the second sub- picture described in the pure white picture of display
The brightness of element.
Wherein, it is bent that the maximum transmission that first gamma curve corresponds to second sub-pixel is greater than second gamma
Line corresponds to the maximum transmission of second sub-pixel, and second gamma curve corresponds to the maximum of second sub-pixel and penetrates
Rate is the 30% to 85% of the maximum transmission that first gamma curve corresponds to second sub-pixel.
Wherein, it is first gamma curve that second gamma curve, which corresponds to the maximum transmission of second sub-pixel,
The 50% to 85% of the maximum transmission of corresponding second sub-pixel.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of display device is provided, it is described aobvious
Showing device includes display panel, and the display panel includes the driving unit of multiple pixels and the multiple pixel of driving, described
Each pixel includes multiple first sub-pixels and second sub-pixel, and the multiple first sub-pixel includes red sub-pixel, green
Sub-pixels and blue subpixels, second sub-pixel are white sub-pixels, and the driving unit is according to the first gamma curve
First sub-pixel is driven, and drives second sub-pixel according to the first gamma curve or the second gamma curve,
When showing pure color picture, the driving unit is driven according to first gamma curve in the multiple first sub-pixel
Some, and second sub-pixel is driven according to second gamma curve；When showing pure white picture, the driving
Unit drives the multiple first sub-pixel and second sub-pixel according to first gamma curve.
Wherein, the range of the second gamma value of the first gamma value of first gamma curve and second gamma curve
Between 1.8 to 2.6.
Wherein, show the brightness of the second sub-pixel described in pure color picture lower than the second sub- picture described in the pure white picture of display
The brightness of element.
Wherein, it is bent that the maximum transmission that first gamma curve corresponds to second sub-pixel is greater than second gamma
Line corresponds to the maximum transmission of second sub-pixel, and second gamma curve corresponds to the maximum of second sub-pixel and penetrates
Rate is the 30% to 85% of the maximum transmission that first gamma curve corresponds to second sub-pixel.
Wherein, it is first gamma curve that second gamma curve, which corresponds to the maximum transmission of second sub-pixel,
The 50% to 85% of the maximum transmission of corresponding second sub-pixel.
The beneficial effects of the present invention are: being in contrast to the prior art, the display panel of the invention passes through selection
Some in first gamma curve and second gamma curve drives second sub-pixel, so that pure showing
When color picture, the driving unit according to first gamma curve drives one in first sub-pixel and according to institute
It states the second gamma curve and drives second sub-pixel, color saturation will not be reduced so as to improve transmitance and excessively；And aobvious
When showing pure white picture, the driving unit drives the multiple first sub-pixel and described second according to first gamma curve
Sub-pixel makes the display panel have the advantages that light efficiency is high, pure color colour rendering is relatively high and power consumption is lower with this.
Detailed description of the invention
Fig. 1 is the display mode schematic diagram of existing display panel；
Fig. 2 is the structural schematic diagram of display panel of the invention；
Fig. 3 is the display area structural schematic diagram in Fig. 2；
Fig. 4 is first and second gamma curve schematic diagram of the invention；
Fig. 5 is the working method schematic diagram of display panel of the invention；
Fig. 6 is the display mode of display panel of the invention and the display mode of existing display panel
Contrast schematic diagram；
Fig. 7 is the structural schematic diagram of display device of the invention.
Specific embodiment
Referring to Fig. 2, being the structural schematic diagram of display panel of the invention.As shown in Fig. 2, the display panel 10 includes
Driving unit 20 and display area 30, the driving unit 20 is for driving the display area to perform image display.It is described aobvious
Show that region 30 includes multiple pixels 31.In the present embodiment, the multiple pixel 31 arranges into strips, in other embodiments,
The multiple pixel 31 can also be arranged in triangle.
Referring to Fig. 3, being the structural schematic diagram of display area of the invention.As shown in figure 3, each pixel 31 includes
Three the first sub-pixels and second sub-pixel.Three first sub-pixels are respectively the R sub-pixel 41 being displayed in red, show
The B sub-pixel 43 for showing the G sub-pixel 42 of green and being displayed in blue；One second sub-pixel is the W sub-pixel being displayed in white
44, the W sub-pixel 44 is by R sub-pixel 41, G sub-pixel 42 and B sub-pixel 43 respective shown red, green and blue
The blend color obtained after being combined is white.In the present embodiment, the R sub-pixel 41, G sub-pixel 42, B sub-pixel
43 and W sub-pixel 44 by one direction side by side in a manner of be arranged in a pixel 31, in other embodiments, the R
Sub-pixel 41, G sub-pixel 42, B sub-pixel 43 and W sub-pixel 44 arrangement mode with no restrictions, such as R sub-pixel 41, G picture
Element 42, B sub-pixel 43 and W sub-pixel 44 can also be arranged in the array of generally one 2*2, in this array R sub-pixel
41, the sequence of G sub-pixel 42, B sub-pixel 43 and W sub-pixel 44 is without limitation.Wherein, R sub-pixel 41, G sub-pixel 42, B
The Pixel Dimensions of pixel 43 and W sub-pixel 44 can be identical or not identical, preferably R sub-pixel 41, G sub-pixel 42, B picture
Element 43 and the Pixel Dimensions having the same of W sub-pixel 44.
In other embodiments, respectively shown color is different for multiple first sub-pixels described in same pixel,
And it is not limited to the combination of red described above, green and blue, but the combination of preferably primary colors.Second sub-pixel is aobvious
The color shown is the blend color obtained after being combined color shown by any number of first sub-pixels, and is carried out
First sub-pixel of combination can be selected arbitrarily, be can be all first sub-pixels for constituting a pixel, be also possible to wherein
A part.
The driving unit 20 includes video data Transmit-Receive Unit 21, image processing unit 22, timing generating unit 23, source
Pole driving unit 24 and drive element of the grid 25.The driving unit 20 drives the multiple pixel 31 by these structures,
Specifically, driving constitutes multiple sub-pixels, i.e. R sub-pixel 41, G sub-pixel 42, B sub-pixel 43 and the W picture of each pixel 31
Element 44.
The video data Transmit-Receive Unit 21 receives video data, and sends it to described image processing unit 22, institute
It states image processing unit 22 and receives video data from the video data Transmit-Receive Unit 21, and according to the video data and described
First gamma curve generates and R sub-pixel 41, G sub-pixel 42 and the corresponding R data of B sub-pixel 43, G data and B data,
And described image processing unit 22 is according in the video data and first gamma curve and second gamma curve
Some generate corresponding with W sub-pixel 44 W data, and R data, G data, B data and W data are sent to timing generation
Unit 23.
The R data received, G data, B data and W data are sent to the source electrode by the timing generator unit 23
Driving unit 24, and the signal of the timing driven to each pixel 31 is sent to the drive element of the grid 25.Institute
It states drive element of the grid 25 and drives each pixel 31, the source based on the signal received from the timing generator unit 23
The R data, G data, B data and the W data that receive from the timing generator unit 23 are converted into reality by pole driving unit 24
Border is applied to the analog voltage in pixel, and is output to each pixel 31.
Referring to Fig. 4, being the schematic diagram of the first gamma curve and the second gamma curve of the invention.As shown in figure 4, described
The range of second gamma value of the first gamma value of the first gamma curve and second gamma curve is between 1.8 to 2.6, institute
State the first gamma value the first gamma identical or described with the second gamma value of second gamma curve of the first gamma curve
First gamma value of curve is not identical as the second gamma value of second gamma curve.Wherein, gamma is exactly Gamma, institute
Stating the corresponding maximum transmission of the first gamma curve Gamma1 is Tr1, and the second gamma curve Gamma2 is corresponding maximum saturating
Crossing rate is Tr2.Wherein, the left figure in Fig. 4 indicates normalization V-T curve (i.e. display panel driving voltage and transmitance relationship
Normalizing curve).Right figure in Fig. 4 indicates that the gamma1/gamma2 that generation is adjusted separately according to maximum transmission Tr1/Tr2 is bent
Line, maximum transmission Tr1 correspond to maximum drive voltage V1, and maximum transmission Tr2 corresponds to maximum drive voltage V2, then gamma is bent
Line gamma1 is generated according to 0~V1 sections of V-T curves, and gamma curve gamma2 is generated according to 0~V2 sections of V-T curves.
Referring to Fig. 5, being the working method schematic diagram of display panel of the invention.As shown in figure 5, the W sub-pixel 44
Its brightness is indicated using gray scale, as can be seen from the figure in 255 pictures of pure color W sub-pixel 44 than W in 255 pure white pictures
The brightness of sub-pixel 44 is lower, that is, shows the brightness of the second sub-pixel described in pure color picture lower than described in the pure white picture of display
The brightness of second sub-pixel, this is because first gamma curve of driving W sub-pixel 44 corresponds to second sub-pixel
Maximum transmission Tr1 is greater than the maximum transmission Tr2 that second gamma curve corresponds to second sub-pixel.
In the present embodiment, the maximum transmission Tr2 that second gamma curve corresponds to second sub-pixel is described
First gamma curve corresponds to the 30%-85% of the maximum transmission Tr1 of second sub-pixel, in the present embodiment, preferred model
It encloses for 50%-85%.When showing pure color picture, the driving unit 20 drives the multiple according to first gamma curve
One in first sub-pixel, and second sub-pixel is driven according to second gamma curve, thus by lower bright
Second sub-pixel of degree improves the transmitance of first sub-pixel, will not excessively reduce color saturation (NTSC)；When aobvious
When showing pure white picture, the driving unit 20 drives the multiple first sub-pixel and described the according to first gamma curve
Two sub-pixels, with this display panel being had in this manner, light efficiency is high, pure color colour rendering is relatively high and power consumption
Lower advantage.
Referring to Fig. 6, be display panel of the invention display mode and existing display panel display mode in light
Learn the contrast schematic diagram of the difference and advantage and disadvantage in quality.Wherein, a in Fig. 6 is the display pattern of existing display panel,
B in Fig. 6 is existing display panel under the premise of the NTSC for guaranteeing product is constant, because of the second sub-pixel (W sub-pixel
44) addition needs to increase the triangle of the multiple first sub-pixel (R sub-pixel 41, G sub-pixel 42 and B sub-pixel 43)
Area to NTSC tend to 90%.C and d in Fig. 6 are the display mode schematic diagrames of display panel of the invention, it can be seen that
The second sub-pixel (W sub-pixel 44) as described in being shown pure color picture only has lower or transmittance, and described second
The limited brightness of sub-pixel, it is limited to the reduction effect of NTSC area, it is larger to the transmitance promotion of picture, and guaranteeing
Under the premise of NTSC is constant, it is only necessary to increase the multiple first sub-pixel (R sub-pixel 41, G sub-pixel 42 and B sub-pixel 43)
Triangle area to NTSC tend to such as 80%, and do not have to need to increase as existing display panel it is the multiple
The area of the triangle of first sub-pixel (R sub-pixel 41, G sub-pixel 42 and B sub-pixel 43) to NTSC tend to 90%, while by
W sub-pixel 44 participates in work with maximum transmission Tr1 when the display of pure white picture, does not reduce to the reduction of power consumption, therefore this
Invention improves multiple problems existing for existing display panel, and it is opposite with light efficiency height, pure color colour rendering to realize display panel
Higher and lower power consumption advantage.
Referring to Fig. 7, being the structural schematic diagram of display device of the invention.As shown in fig. 7, the display device 1 includes
Above-mentioned display panel 10, other devices and function of the display device are identical as the device of existing display device and function,
Details are not described herein.
The display panel is driven by some in selection first gamma curve and second gamma curve
Second sub-pixel is moved, so that the driving unit drives institute according to first gamma curve when showing pure color picture
It states the first sub-pixel and drives second sub-pixel according to second gamma curve, so as to improve transmitance and will not mistake
Degree reduces color saturation；And when showing pure white picture, the driving unit drives described more according to first gamma curve
A first sub-pixel and second sub-pixel make the display panel have light efficiency height, pure color with this in this manner
The advantage that colour rendering is relatively high and power consumption is lower.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of display panel, which is characterized in that the display panel includes the drive of multiple pixels and the multiple pixel of driving
Moving cell, each pixel include multiple first sub-pixels and second sub-pixel, and the multiple first sub-pixel includes red
Sub-pixels, green sub-pixels and blue subpixels, second sub-pixel are white sub-pixels, and the driving unit is according to the
One gamma curve drives first sub-pixel, and drives described according to the first gamma curve or the second gamma curve
Two sub-pixels, when showing the pure color picture of the first sub-pixel, the driving unit drives according to first gamma curve
Some in the multiple first sub-pixel, and second sub-pixel is driven according to second gamma curve；When
When showing pure white picture, the driving unit drives the multiple first sub-pixel and described the according to first gamma curve
Two sub-pixels.
2. display panel according to claim 1, which is characterized in that the first gamma value of first gamma curve and institute
The range of the second gamma value of the second gamma curve is stated between 1.8 to 2.6.
3. display panel according to claim 1, which is characterized in that show the bright of the second sub-pixel described in pure color picture
Degree is lower than the brightness for showing the second sub-pixel described in pure white picture.
4. display panel according to claim 1, which is characterized in that first gamma curve corresponds to the described second sub- picture
The maximum transmission of element is greater than the maximum transmission that second gamma curve corresponds to second sub-pixel, second gamma
The maximum transmission that curve corresponds to second sub-pixel is maximum that first gamma curve corresponds to second sub-pixel
The 30% to 85% of transmitance.
5. display panel according to claim 4, which is characterized in that second gamma curve corresponds to the described second sub- picture
The maximum transmission of element is the 50% to 85% of the maximum transmission that first gamma curve corresponds to second sub-pixel.
6. a kind of display device, which is characterized in that the display device includes display panel, and the display panel includes multiple pictures
The driving unit of element and the multiple pixel of driving, each pixel include multiple first sub-pixels and second sub-pixel,
The multiple first sub-pixel includes red sub-pixel, green sub-pixels and blue subpixels, and second sub-pixel is white
Sub-pixel, the driving unit drive first sub-pixel according to the first gamma curve, and according to the first gamma curve
Or second gamma curve drive second sub-pixel, when showing the pure color picture of the first sub-pixel, the driving unit
Some in the multiple first sub-pixel is driven according to first gamma curve, and bent according to second gamma
Line drives second sub-pixel；When showing pure white picture, the driving unit drives according to first gamma curve
The multiple first sub-pixel and second sub-pixel.
7. display device according to claim 6, which is characterized in that the first gamma value of first gamma curve and institute
The range of the second gamma value of the second gamma curve is stated between 1.8 to 2.6.
8. display device according to claim 6, which is characterized in that show the bright of the second sub-pixel described in pure color picture
Degree is lower than the brightness for showing the second sub-pixel described in pure white picture.
9. display device according to claim 6, which is characterized in that first gamma curve corresponds to the described second sub- picture
The maximum transmission of element is greater than the maximum transmission that second gamma curve corresponds to second sub-pixel, second gamma
The maximum transmission that curve corresponds to second sub-pixel is maximum that first gamma curve corresponds to second sub-pixel
The 30% to 85% of transmitance.
10. display device according to claim 9, which is characterized in that second gamma curve corresponds to second son
The maximum transmission of pixel is the 50% to 85% of the maximum transmission that first gamma curve corresponds to second sub-pixel.
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| CN106154658B (en) * | 2016-09-26 | 2023-07-07 | 合肥鑫晟光电科技有限公司 | Array substrate, display panel, display device and design method of display panel |
| CN107195279B (en) * | 2017-07-27 | 2019-11-26 | 武汉华星光电技术有限公司 | A kind of drive control method of display panel |
| US10573216B2 (en) | 2017-07-27 | 2020-02-25 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Driving control method by sequentially turning on all of the first, all of the second, all of the third and all of the white color sub-pixels for display panel |
| CN109767742A (en) * | 2019-03-26 | 2019-05-17 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
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