Summary of the invention
In view of this, the invention provides a kind of three-dimensional display system, can the uniform stereopsis of output brightness.
The invention provides a kind of three-dimensional display system, comprise display floater, multiple scan line, multiple data wire, multiple gamma look-up tables.On this display floater, there are multiple pixel columns of arranging along a line direction, and each pixel column is sequentially arranged with multiple pixels along a column direction.Wherein, the pixel in each pixel column comprises one first group of pixel and one second group of pixel, and each pixel comprises one first sub-pixel and the second sub-pixel.Each pixel column respectively correspondence be electrically connected to scan line one of them.And scan line comprises multiple the first scan lines and multiple the second scan line alternative arrangement, and each first scan line has the identical activation time with the sweep signal that the second scan line of adjacent setting receives.Data wire also comprises multiple the first data wires and multiple the second data wire, and each the first data wire and the second data wire are electrically connected on respectively corresponding pixel.In addition, gamma look-up tables comprises the first gamma look-up tables and the second gamma look-up tables.Wherein, the first sub-pixel of each first group of pixel is electrically connected on the first data wire, and the second sub-pixel of first group of pixel is electrically connected on the second data wire.In addition, the first sub-pixel of each second group of pixel is electrically connected on the second data wire, and the second sub-pixel of second group of pixel is electrically connected on the first data wire.First group of pixel and second group of pixel are arranged alternately in column direction, and are arranged alternately in line direction.Meeting of the present invention selects the first gamma look-up tables and one of them GTG signal producing of this second gamma look-up tables to be sent to corresponding pixel according to a control signal.
Due to during the same display cycle, the GTG signal that offers pixel is from identical gamma look-up tables, and therefore, during a display cycle, the brightness of left eye picture and right eye picture is identical.In addition, during next display cycle, can provide the pixel of GTG signal to same position by another gamma look-up tables, therefore the brightness meeting of each pixel column is by average.Thus, three-dimensional display system of the present invention just can the uniform stereopsis of output brightness.
For above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
Fig. 1 is depicted as the picture element matrix schematic diagram according to a kind of three-dimensional display system of one embodiment of the invention;
Fig. 2 is depicted as the sequential chart according to the sweep signal of one embodiment of the invention;
Fig. 3 A is depicted as and is related to schematic diagram according to control signal XSFT and display cycle in one embodiment of the invention;
Fig. 3 B is depicted as the GTG signal schematic representation of the corresponding gamma look-up tables output receiving according to one embodiment of the invention neutron pixel.
Reference numeral
100: three-dimensional display system 102: display floater
104,106: gamma look-up tables 110: data drive circuit
115: 120: the first groups of pixels of scan drive circuit
130: the second groups of pixel 120a: the first sub-pixel of first group of pixel
120b: the second sub-pixel 130a of first group of pixel: the first sub-pixel of second group of pixel
130b: the second sub-pixel 140 of second group of pixel: time schedule controller
A: the GTG signal of the first gamma look-up tables output
B: the GTG signal of the second gamma look-up tables output
D1, D2: data wire
G, G1, G2, G3, G4, GK-1, GK: scan line
T: the activation time X of sweep signal: line direction
XSFT: control signal Y: column direction
Embodiment
Fig. 1 is depicted as the schematic diagram according to a kind of three-dimensional display system of one embodiment of the invention.Please refer to Fig. 1, the three-dimensional display system 100 that the present embodiment provides, comprises display floater 102, the first gamma look-up tables 104 and the second gamma look-up tables 106, multiple scan line G1, G2 ..., GK, multiple data wires.In display floater 102 along column direction Y sequentially arranged multiple scan line G1, G2 ..., GK, and K is positive integer.Wherein, each scan line G1, G2 ..., GK correspond respectively to multiple pixel column R1, R2 ..., RK one of them, and scan line comprises multiple the first scan lines and multiple the second scan line alternative arrangement, the first scan line can be for example even number line scan line, and the second scan line is odd line interlace line, and the sweep signal that N horizontal scanning line receives has the identical activation time with the sweep signal that N+1 horizontal scanning line receives.In addition, along line direction X, sequentially arranged multiple data wires with the first data wire D1 and the second data wire D2, and be coupled to respectively data drive circuit 110.Each pixel column R1, R2 ..., in RK, there are respectively multiple pixels, for example first group of pixel 120 and second group of pixel 130.In addition, each first group of pixel 120 all has the first sub-pixel 120a and the second sub-pixel 120b, and the first sub-pixel of first group of pixel is coupled to the first corresponding data wire, and the second sub-pixel of first group of pixel is coupled to the second corresponding data wire.Each second group of pixel 130 all has the first sub-pixel 130a and the second sub-pixel 130b, and the first sub-pixel of second group of pixel is coupled to the second corresponding data wire, and the second sub-pixel of second group of pixel is coupled to the first corresponding data wire.In the present embodiment, first group of pixel 120 and second group of pixel 130 are arranged alternately in line direction X, and are also arranged alternately in column direction Y.In addition, each pixel column R1, R2 ..., the first sub-pixel 120a, the 130a of each pixel in RK and the second sub-pixel 120b, 130b be coupled to respectively corresponding scan line G1, G2 ..., GK.When N horizontal scanning line and N+1 horizontal scanning line receive sweep signal simultaneously, while being positioned at the activation time, the capable pixel of N and the capable pixel of N+1 are switched on simultaneously and receive from one of them GTG signal (grey level signal) of the first gamma look-up tables 104 and the second gamma look-up tables 106.
Three-dimensional display system 100 separately comprises data drive circuit 110, and in order to data signal, data-signal is via the first gamma look-up tables 104 and the rear output of second gamma look-up tables 106 one of them compensation GTG signal.In addition, separately comprise time schedule controller 140 at three-dimensional display system 100, in order to provide control signal XSFT to data drive circuit 110.Data drive circuit, according to receiving after control signal XSFT, is sent to the first gamma look-up tables 104 and the second gamma look-up tables 106 GTG signals respectively in respective pixel by data wire.In the beginning of a display cycle, just can be according to the initial state of control signal XSFT, select GTG signal to deliver to corresponding sub-pixel via data wire.Three-dimensional display system 100 separately comprises scan drive circuit 115, in order to provide sweep signal to corresponding scan line.
Please refer to Fig. 2, Fig. 2 illustrates the activation time of scan line, as shown in Figure 2, multiple scan line G1, G2 ..., GK, the sweep signal that N horizontal scanning line receives has identical activation time T with the sweep signal that N+1 horizontal scanning line receives, wherein N one is not more than the positive integer of K, the activation time by activation time to the K horizontal scanning line GK of the first row scan line G1 is defined as an image time (frame), in three-dimensional display system, an image time can be in order to show a left eye picture or a right eye picture.
Fig. 3 A illustrates and is related to schematic diagram according to control signal XSFT and display cycle in one embodiment of the invention, and initial in each picture of the first display cycle, the initial state of control signal XSFT is first standard, can be for example electronegative potential L; Each picture in the second display cycle is initial, and the initial state of control signal XSFT is second standard, can be for example high potential H.
Fig. 3 B is depicted as the GTG signal schematic representation of the corresponding gamma look-up tables output receiving according to one embodiment of the invention neutron pixel.Fig. 3 A that please arrange in pairs or groups merges reference, when in the first picture 1stframe of a display cycle when initial, the first row scan line G1 and the second horizontal scanning line G2 are enabled, the state of control signal XSFT is positioned at first standard, can be for example electronegative potential L, the first sub-pixel 120a of first group of pixel just can receive the GTG signal from the first gamma look-up tables 104, represent with A, and the second sub-pixel 120b of first group of pixel receives the GTG signal from the second gamma look-up tables 106, represent with B, and the first sub-pixel 130a of second group of pixel receives the GTG signal from the second gamma look-up tables 106, represent with B, the second sub-pixel 130b of second group of pixel receives the GTG signal from the first gamma look-up tables 104, represent with A, by that analogy, when the first row scan line G1 and the second horizontal scanning line G2 are disabled, and the third line scan line G3 and fourth line scan line G4 are while being enabled, the state of control signal XSFT is positioned at second standard, can be for example high potential H, the first sub-pixel 120a of first group of pixel just can receive the GTG signal from the second gamma look-up tables 106, represent with B, and the second sub-pixel 120b of first group of pixel receives the GTG signal from the first gamma look-up tables 104, represent with A, and the first sub-pixel 130a of second group of pixel receives the GTG signal from the first gamma look-up tables 104, represent with A, the second sub-pixel 130b of second group of pixel receives the GTG signal from the second gamma look-up tables 106, represent with B, by that analogy.Please arrange in pairs or groups Fig. 3 B with reference to Fig. 1 again, and by a left side, the right side is sequentially ABBAABBA to the GTG signal that therefore the first sub-pixel of the first row pixel R1 receives ..., and the first row pixel R1 second sub-pixel receive GTG signal by a left side, the right side is sequentially BAABBAAB ...
When in the second picture 2nd frame of a display cycle when initial, the first row scan line G1 and the second horizontal scanning line G2 are enabled, and the state of control signal XSFT is positioned at first standard, can be for example electronegative potential L.In the time that the third line scan line G3 and fourth line scan line G4 are enabled, the state of control signal XSFT is positioned at second standard, by that analogy.All the other three-picture 3rd frame, all so state with the 4th picture 4th frame, do not repeat at this.The second picture 2nd frame and the 4th picture 4th frame can be for example black picture B(Black), between left eye picture L and right eye picture R, insert a black picture B(Black) can improve liquid crystal transition shut-in time ability, reduction is crosstalked.The first picture 1st frame can be for example left eye picture L, and three-picture 3rd frame can be for example right eye picture R.Three-dimensional display system 100 completes the demonstration of left eye L and right eye R picture in a display cycle.
When in the first picture 1st frame of next display cycle when initial, the first row scan line G1 and the second horizontal scanning line G2 are enabled, the state of control signal XSFT is positioned at second standard, can be for example high potential H, the first sub-pixel 120a of first group of pixel just can receive the GTG signal from the second gamma look-up tables 106, represent with B, and the second sub-pixel 120b of first group of pixel receives the GTG signal from the first gamma look-up tables 104, represent with A, and the first sub-pixel 130a of second group of pixel receives the GTG signal from the first gamma look-up tables 104, represent with A, the second sub-pixel 130b of second group of pixel receives the GTG signal from the second gamma look-up tables 106, represent with B, by that analogy, when the first row scan line G1 and the second horizontal scanning line G2 are disabled, and the third line scan line G3 and fourth line scan line G4 are while being enabled, the state of control signal XSFT is positioned at first standard, can be for example electronegative potential L, the first sub-pixel 120a of first group of pixel just can receive the GTG signal from the first gamma look-up tables 104, represent with A, and the second sub-pixel 120b of first group of pixel receives the GTG signal from the second gamma look-up tables 106, represent with B, and the first sub-pixel 130a of second group of pixel receives the GTG signal from the second gamma look-up tables 106, represent with B, the second sub-pixel 130b of second group of pixel receives the GTG signal from the first gamma look-up tables 104, represent with A, by that analogy.Please arrange in pairs or groups Fig. 3 B with reference to Fig. 1 again, and by a left side, the right side is sequentially BAABBAAB to the GTG signal that therefore the first sub-pixel of the first row pixel R1 receives ..., and the first row pixel R1 second sub-pixel receive GTG signal by a left side, the right side is sequentially ABBAABBA ...
One embodiment of the invention are provided in the different display cycles, there is different initial bit standards by switch-over control signal XSFT in each different display cycle, make every two display cycles, first group of pixel 120 different from the gamma look-up tables of second group of pixel 130 conducting, improve the luminance uniformity of display frame.Even if gamma look-up tables is the error of proofreading and correct GTG signal, but owing to still there is a little error amount between different gamma look-up tables circuit, alternately switch the luminance uniformity that the error between low circuit more can be improved to display frame by two display cycles.
As known from the above, when group pixel intensity is different, the first gamma look-up tables 104 and the second gamma look-up tables 106 are exported GTG luminance signals A and B are unequal, under display frame, will produce bright concealed wire, then under the same display cycle, for fear of right and left eyes brightness disproportionation, therefore under the display cycle, its XSFT signal waveform of 4 pictures (frame) is identical, XSFT signal waveform and a upper periodic waveform complementation in next display cycle, utilize gray scale voltage on space to switch, therefore the brightness value of each pixel column can compensate by complementation, and the problem of the bright concealed wire of solution picture.
In certain embodiments, the number of data wire is 2M bar, and the number of scan line is N bar.Therefore, the screen resolution that provided in these embodiments, is M*N.But due in the present embodiment, scan line and N+1 horizontal scanning line that N is capable can be enabled simultaneously, therefore actual resolution is M*N/2, and wherein M and N are natural number.
Although the present invention discloses as above with preferred embodiment; but it is not in order to limit the present invention; anyly be familiar with those skilled in the pertinent art; without departing from the spirit and scope of the present invention; can do a little change and modification, therefore protection scope of the present invention should be defined and is as the criterion by appending claims.