Summary of the invention
The present invention provides a kind of special-shaped display device, and this abnormity display device passes through the side in the main display area of display screen
Edge increase have repeat arrange pixel unit secondary display area, and arrange in pairs or groups corresponding display driver circuit and it is adjustable light modulation account for
Sky improves the display effect of jagged edges than signal.
Technical scheme is as follows:
The invention discloses a kind of special-shaped display devices, comprising: main display area and the pair positioned at main display area edge are shown
Show that region, the main display area and secondary display area all have multiple pixel units for repeating arrangement, each pixel unit tool
There are m(m=3 or 4) a sub-pixel.
Wherein, further include in secondary display area and the display driver circuit of collocation corresponding with each sub-pixel, it is secondary to show
Show that i-th (1≤i≤m, and i is integer) sub-pixel of n-th (n >=1, and n is integer) a pixel unit in region corresponds to the n-th i
A display driver circuit, n-th i display driver circuit share the number of outermost the i-th sub-pixel of pixel unit in main display area
According to line.
After inputting adjustable light modulation duty cycle signals, the display driver circuit is used for the sub- picture to the secondary display area
Element provides corresponding driving signal to control the brightness of sub-pixel, the brightness of pair display area pixel unit and main viewing area
The brightness of the outermost pixel unit in domain is compared and is gradually decreased.
Preferably, the display driver circuit includes that brightness control module, brightness gradually decrease module and light-emitting diodes
Pipe, the brightness control module of n-th i display driver circuit connect i-th of sub- picture of the outermost pixel unit in main display area
The data line of element, brightness gradually decrease module connection brightness control module, and light emitting diode connection brightness gradually decreases module.
Preferably, the brightness control module includes the first transistor, second transistor, third transistor and the first electricity
Hold.
The control terminal of the first transistor connects operating voltage, and the first path terminal of the first transistor connects main viewing area
The data line of outermost i-th of the sub-pixel in domain, the first pole plate of the alternate path end connection first capacitor of the first transistor;Institute
The alternate path end of the control terminal connection the first transistor of second transistor is stated, the two paths end of second transistor is separately connected
Second pole plate of first capacitor and the first path terminal of third transistor;The control terminal connection light modulation duty of the third transistor
Than signal, the two paths end of third transistor is separately connected the alternate path end of second transistor and brightness gradually decreases module
Input terminal;The alternate path end of the first pole plate connection the first transistor of the first capacitor, the second pole plate of first capacitor
Connect the first path terminal of second transistor.
Preferably, it includes the 4th transistor that the brightness, which gradually decreases module, and the control terminal connection of the 4th transistor is adjustable
The two paths end of dimming duty cycle signal, the 4th transistor is separately connected the output end and light-emitting diodes of brightness control module
Pipe.
Preferably, in secondary display area, from the adjustable light modulation duty cycle signals of the 1st pixel unit to the n-th pixel unit
Duty ratio declines step by step.
Preferably, the pixel unit of the secondary display area is transversely arranged or vertically disposed.
Preferably, in secondary display area, step by step from the pixel cell size size of the 1st pixel unit to the n-th pixel unit
Reduce.
Technical solution bring beneficial effect provided by the invention has the following:
Abnormity display device disclosed by the invention, which increases to have by the edge in the main display area of display screen, repeats arrangement pixel
The secondary display area of unit, and arrange in pairs or groups corresponding display driver circuit and adjustable dimming duty cycle signal, make winner viewing area
Human eye is obscured by secondary display area between the edge and outer rim in domain, reaches the display effect for improving jagged edges.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
Technical solution of the present invention is discussed in detail with specific embodiment below.
The present invention provides a kind of special-shaped display device, is OLED device comprising: main display area 01 and it is located at master
All there are multiple repetitions to arrange for the secondary display area 02 at 01 edge of display area, the main display area 01 and secondary display area 02
Pixel unit, each pixel unit has m(m=3 or 4) a sub-pixel.When pixel unit is RGB, pixel unit is worked as in m=3
When for RGBW, m=4.
Preferably, the pixel unit of the secondary display area 02 can be transversely arranged, be also possible to vertical array.
It is main display area 01 and secondary display area 02 when present invention pixel unit is RGB and is transversely arranged as shown in Figure 3
Schematic diagram.Wherein, R1/G1/B1 ~ Rn/Gn/Bn is that the 1st pixel unit of increased pixel unit be extremely in secondary display area 02
Nth pixel unit, n(n >=1, and n be integer) size be arranged according to the actual situation.
Preferably, in secondary display area 02, the pixel cell size from the 1st pixel unit to nth pixel unit is big
It is small to reduce step by step.
Special-shaped display device further includes in secondary display area 02 and the display of collocation corresponding with each sub-pixel drives
I-th (1≤i≤m, and i is integer) of circuit 03, n-th (n >=1, and n is integer) a pixel unit of secondary display area 02 is a
Sub-pixel corresponds to n-th i display driver circuit, and n-th i display driver circuit shares the outermost pixel in main display area 01
The data line of i-th of sub-pixel of unit.
After inputting adjustable light modulation duty cycle signals PWMn, the display driver circuit 03 is used for the secondary display area
02 sub-pixel provides corresponding driving signal to control the brightness of sub-pixel, the brightness of 02 pixel unit of the pair display area
It is gradually decreased compared with the brightness of the outermost pixel unit in main display area 01.
Wherein, the display driver circuit 03 gradually decreases module 32 including brightness control module 31, brightness and shines
Diode 33, it is the sub-pixel for emitting light diode in main 01 outermost pixel unit of display area that brightness, which gradually decreases module 32,
Transistors of having connected on circuit more.
The control terminal of this transistor connects adjustable light modulation duty cycle signals PWMn.Because it is outermost to share main display area 01
The data line of i-th of sub-pixel of pixel unit of side is believed by the adjustable dimming duty cycle of control input display driver circuit 03
Number PWMn makes through the electric current of pixel unit in secondary display area 02 and shares the outermost pixel unit in main display area 01
Electric current compared to gradually decreasing, so as to so that in secondary display area 02 increased pixel unit brightness R1/G1/B1 ~ Rn/Gn/
Bn is gradually decreased but color is close.
The design of the circuit framework of display driver circuit 03 can be arbitrary, as long as increasing on circuit corresponding
Module and the adjustable light modulation duty cycle signals PWMn of collocation gradually decrease brightness just within protection scope of the present invention.
The present invention is discussed in detail with specific embodiment below.
Wherein, the display driver circuit 03 of embodiment uses 3 transistors and 1 capacitor (referred to as 3T1C).
As shown in figure 4, to connect main display area 01 outermost for the brightness control module 31 of n-th i display driver circuit
The data line of i-th of sub-pixel of pixel unit, brightness gradually decrease module 32 and connect brightness control module 31, light emitting diode
33 connection brightness gradually decrease module 32.I-th of sub-pixel shown in Fig. 4 be pixel unit be RGB when the 2nd sub-pixel
That is sub-pixel G.
The brightness control module 31 includes the first transistor M1n, second transistor M2n, third transistor M3n and the
One capacitor C1n.
The control terminal of the first transistor M1n connects operating voltage ELVDD, the first path terminal of the first transistor M1n
Connect the data line of outermost i-th sub-pixel in main display area 01, the first electricity of alternate path end connection of the first transistor M1n
Hold the first pole plate of C1n.
The alternate path end of the control terminal connection the first transistor M1n of the second transistor M2n, second transistor M2n
Two paths end be separately connected the second pole plate of first capacitor C1n and the first path terminal of third transistor M3n.
The control terminal of the third transistor M3n connects dimming duty cycle signal PWM, and two of third transistor M3n are logical
Terminal is separately connected the alternate path end of second transistor M2n and brightness gradually decreases the input terminal of module 32.
The alternate path end of the first pole plate connection the first transistor M1n of the first capacitor C1n, first capacitor C1n's
The first path terminal of second pole plate connection second transistor M2n.
In addition, it includes the 4th transistor M4n that the brightness, which gradually decreases module 32, the control terminal of the 4th transistor M4n connects
Adjustable light modulation duty cycle signals PWMn is met, the two paths end of the 4th transistor M4n is separately connected the defeated of brightness control module 31
Outlet and light emitting diode 33.
Wherein, in secondary display area 02, believe from the 1st pixel unit to the adjustable dimming duty cycle of nth pixel unit
The duty ratio of number PWM1 ~ PWMn declines step by step.
It is the timing diagram of dimming duty cycle signal as shown in Figure 5, inputs the outermost pixel unit i-th in main display area 01
The dimming duty cycle signal of a sub-pixel is PWM, and the adjustable light modulation duty cycle signals of input display driver circuit 03 are PWMn, In
Dimming duty cycle PWM is in the high period, and the duty ratio of adjustable dimming duty cycle PWM1 ~ PWMn declines step by step, thus in master
In the period that the third transistor M3n of 01 i-th of sub-pixel of outermost pixel unit of display area is opened, secondary display area
The time that 4th transistor M41 ~ M4n of the different display driver circuits 03 in 02 is opened gradually decreases.
The duty ratio specific value and frequency of adjustable dimming duty cycle PWM1 ~ PWMn can be set according to actual needs.It accounts for
Sky declines than step by step, and increased pixel can be made to reduce brightness step by step.
It is the display picture of abnormity screen after implementation is of the invention as shown in Figure 6, the pixel unit of secondary display area 02 and master show
Show that the outermost pixel unit color in region 01 is close and gradually decreases brightness until black state is not in this case
Biggish brightness contrast is not in stronger sawtooth sense because brightness gradually decreases.
It should be noted that the above is only a preferred embodiment of the present invention, but the present invention is not limited to above-mentioned
Detail in embodiment, it is noted that for those skilled in the art, in technology of the invention
In conception range, various improvements and modifications may be made without departing from the principle of the present invention, to technology of the invention
Scheme carries out a variety of equivalents, these are improved, retouching and equivalents also should be regarded as protection scope of the present invention.