WO2004061809A1 - 半導体装置、発光表示装置およびそれらの駆動方法 - Google Patents
半導体装置、発光表示装置およびそれらの駆動方法 Download PDFInfo
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- WO2004061809A1 WO2004061809A1 PCT/JP2003/016357 JP0316357W WO2004061809A1 WO 2004061809 A1 WO2004061809 A1 WO 2004061809A1 JP 0316357 W JP0316357 W JP 0316357W WO 2004061809 A1 WO2004061809 A1 WO 2004061809A1
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0404—Matrix technologies
- G09G2300/0408—Integration of the drivers onto the display substrate
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0224—Details of interlacing
- G09G2310/0227—Details of interlacing related to multiple interlacing, i.e. involving more fields than just one odd field and one even field
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2011—Display of intermediate tones by amplitude modulation
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
Definitions
- the present invention relates to an active matrix type semiconductor device using a thin film transistor (TFT) used as a flat display, a light emitting display device, and a driving method thereof.
- TFT thin film transistor
- TFT thin film transistor
- TFT using a polysilicon film has higher field-effect mobility (also called mobility) than conventional TFT using an amorphous silicon film, so that high-speed operation is possible. Therefore, the control of pixels, which was conventionally performed by a drive circuit outside the substrate, can be performed by a drive circuit formed on the same substrate as the pixels.
- active matrix EL display devices having an electroluminescent element (EL element) as a self-luminous element have been actively researched.
- EL element electroluminescent element
- the driving circuit is composed of a shift register section composed of DFF, a NAND circuit, and a buffer circuit composed of an inverter.
- FIG. 9B shows a general example of an evening chart of this drive circuit. In this circuit configuration, the pulse shifts according to the CLK synchronization signal.
- the output pulse is not changed without changing the clock frequency. It was not possible to arbitrarily change the source width or to select the output stage every few steps.
- a method using a decoder can be considered.
- any output stage can be selected, and the output pulse width can be freely changed by an external signal.
- the output pulse width can be arbitrarily changed. It is an object of the present invention to provide a drive circuit which can select a row, has a simple circuit configuration, and has a small load on an external circuit.
- a latch circuit is provided at the output end of each stage of the shift register circuit that sequentially shifts the pulse, and when the pulse is shifted to the stage where the output is to be output. Input the latch pulse, and then input the latch pulse. At the stage when the stage to be output next is shifted, the latch pulse is input and the output stage is switched.
- the output pulse width can be changed arbitrarily by providing a latch circuit in the drive circuit and providing a circuit that outputs a latch pulse at an arbitrary timing (hereinafter, referred to as a “latch pulse generation circuit”).
- a latch pulse generation circuit a circuit that outputs a latch pulse at an arbitrary timing
- the present invention relates to a shift register circuit having a register circuit, a latch circuit array having a latch circuit, and a latch circuit for operating the latch circuit.
- a shift pulse generating circuit for generating a pulse wherein a start pulse is input to the shift register circuit, and the start pulse sequentially shifts the resist circuit according to a clock signal.
- the present invention provides a semiconductor device and a light-emitting display device, wherein an output of a pulse from the corresponding register circuit is input to the latch circuit.
- the present invention relates to a shift register circuit having a register circuit, a latch circuit array having a latch circuit, a semiconductor device having a circuit for generating a latch pulse for operating the latch circuit, and a light emitting display device,
- a start pulse is input to the evening circuit
- the register circuit is caused to sequentially shift the evening pulse based on a clock signal to generate a pulse output from the register circuit and the latch pulse.
- a semiconductor device and a light emitting display device wherein a latch pulse output from a circuit is input to the latch circuit, and the latch circuit outputs the pulse to a current source circuit based on the input of the latch pulse. Is provided.
- the latch pulse generation circuit may be on a different substrate from the shift register circuit and the latch circuit array, or may be on the same substrate.
- the latch pulse generation circuit may generate a latch pulse from the stop pulse and the click signal.
- the latch pulse generation circuit includes a first shift register circuit including a first register circuit that shifts in synchronization with the start pulse, and a second shift register circuit that shifts in synchronization with the clock signal. And a second shift register circuit including the register circuit described above.
- each of the output terminals of the plurality of latch circuits may be connected to a control terminal of one or a plurality of current source circuits.
- the current source circuit may be included in a drive circuit that controls a current value input to a pixel.
- the current source circuit may be provided in a plurality of pixels arranged in a matrix.
- the use of the semiconductor device of the present invention makes it possible to easily change the pulse width of the driver output without changing the cut-off frequency, which is sufficient for storing the current value in the holding capacity of the current source circuit. It is possible to provide a display device which can take a long time and can perform high quality display.
- FIG. 1 is a diagram showing a circuit configuration of a semiconductor device according to a first embodiment of the present invention.
- FIG. 2 is a diagram showing a timing chart according to the first embodiment of the present invention.
- FIG. 3 is a diagram showing a timing chart according to the first embodiment of the present invention.
- FIG. 4 is a diagram showing a circuit configuration of a semiconductor device according to a second embodiment of the present invention.
- FIG. 5 is a circuit configuration of a semiconductor device according to a second embodiment of the present invention, and It is a figure which shows an evening shooting chart.
- FIG. 6 is a diagram showing a circuit configuration of a semiconductor device according to a third embodiment of the present invention.
- FIG. 7 is a diagram showing a circuit configuration of a semiconductor device according to a fourth embodiment of the present invention.
- FIG. 8 is a diagram showing a circuit configuration of a pixel portion that can be used in the semiconductor device according to the fourth embodiment of the present invention.
- FIG. 9 is a diagram showing a configuration and a timing chart of a conventional technique.
- FIG. 10 is a diagram showing Embodiment 1 of the present invention.
- FIG. 11 is a diagram showing Embodiment 1 of the present invention.
- FIG. 12 is a diagram illustrating a top view of the drive circuit according to the first embodiment of the present invention.
- FIG. 13 is a diagram showing an equivalent circuit of a top view of the drive circuit according to the first embodiment of the present invention.
- FIG. 14 is a diagram showing an example of an electronic device to which the present invention can be applied.
- FIG. 1 is a diagram showing Embodiment 1 of the present invention. It is composed of a shift register circuit 102 composed of a resistive circuit 101, a latch circuit array 104 composed of a latch circuit 103, and a latch pulse generating circuit 105.
- the latch pulse generation circuit 105 may be formed on the same substrate as the shift register circuit 102 and the latch circuit array 104, or may be different. It may be made on a substrate.
- the shift register circuit shifts the pulse in synchronization with the clock signal.
- the latch pulse signal LP is input in accordance with the output timing of the shift register circuit, the output level of the shift register circuit when the latch pulse signal LP is at the H level is latched. The state is maintained. For example, when the latch pulse signal LP is input at the timing of Fig. 2, at the first latch timing, A1 is H level, all other stages are L level, and the next latch is The status is maintained and output until evening. At the timing of the second latch, A5 is latched at the H level, and all other stages are latched at the L level. Similarly, the state is held until the next latch timing.
- the first, fifth, ninth, and thirteenth stages sequentially output pulses, and the pulse width is four times the output width of the shift register.
- FIG. 3 shows the operation when the timing of the latch pulse signal is different from that in FIG. At this time, the second, sixth, and tenth stages output pulses sequentially, and the pulse width is four times the output width of the shift register as in Fig. 2.
- the output stage can be arbitrarily selected and the pulse width can be arbitrarily changed by devising the evening of the latch pulse LP.
- FIG. 4 is a diagram showing Embodiment 2 of the present invention.
- Register circuit 4 0 It comprises a shift register circuit 402 composed of 1, a latch circuit array 404 composed of latch circuits 403, and a latch pulse generation circuit 405.
- the latch pulse generation circuit 405 may be formed on the same substrate as the shift register circuit 402 or the latch circuit array 405, or may be formed on a different substrate.
- the start pulse signal SP and the clock signal CLK are input to the latch pulse generation circuit, and the latch pulse generation circuit outputs the latch pulse LP.
- FIG. 5A is an example of the latch pulse generation circuit in the second embodiment.
- the first register circuit shifts the pulse using the start pulse signal SP as a synchronization signal
- the second register circuit shifts the pulse using the clock signal CLK as a synchronization signal.
- the first switch turns on when the control signal is at the L level and turns off when the control signal is at the H level.
- the second switch turns on when the control signal is at the high level, and turns off when the control signal is at the low level.
- the interval at which the latch pulse signal is output is determined according to the number of stages of the second register circuit.
- the first register circuit takes in the start pulse signal SP to the node a and then repeats n states using the start pulse signal SP as a synchronization signal. You.
- the first switch 502 is turned on at the timing next to the n-th state of the first state, and the first state is reset to the first state by receiving the start pulse signal SP.
- the state of the first register circuit is transmitted to the second register circuit.
- the second register circuit repeats n states using the clock signal CLK as a synchronization signal, and outputs a latch pulse signal in a certain state, in which the nodes e and f are at the H level.
- FIG. 5B shows a timing chart of the operation of the latch pulse generation circuit in FIG. In the configuration of FIG. 5 (A), assuming that one half cycle of the clock signal CLK is one count, a latch pulse signal is output every four counts. The timing at which the latch pulse signal is output shifts by one count each time the start pulse signal SP is input, and returns to the initial state every time the start pulse signal SP is input four times.
- Fig. 5 (B) shows a configuration in which the latch pulse signal is output every 4 counts.However, by changing the number of stages m and n of the register circuit, the interval at which the latch pulse signal is output can be changed. Can be. By using the latch pulse generation circuit described above, there is no need to externally input a latch pulse signal.
- the latch pulse generation circuit counts the number of times the start pulse is input, determines the timing at which the latch pulse is output, and outputs the latch pulse at regular intervals.
- a register circuit FIG. 5 (A) shows only an example, and the circuit configuration is not limited to this. (Embodiment 3)
- FIG. 6A is a diagram showing Embodiment 3 of the present invention.
- Current source circuit group 607 consisting of a shift register circuit 602 consisting of a resistive circuit 601 and a latch circuit array 604 consisting of a latch circuit 603 and a current source circuit 606 And a latch pulse generation circuit 605.
- the latch pulse generating circuit 605 may be formed on the same substrate as the shift register circuit 602 or the latch circuit array 604, or may be formed on a different substrate.
- FIG. 6B is an example of the current source circuit according to the third embodiment.
- This current source circuit includes a current driving transistor 6 11, a capacitive element 6 12, a first switch transistor 6 13, a second switch transistor 6 14, and a third switch transistor 6 1 15, 5, 6 and 6, reference current source 6 17, current line 6 18, power supply line 6 19, control signal input terminal (indicated as IN in the figure), current output terminal (in the figure, OUT).
- the control signal input terminal is connected to the gate terminal of the first switch transistor, the current line is connected to the source terminal of the first switch transistor, and the drain terminal of the first switch transistor.
- the control signal input terminal is connected to the gate terminal of the second switch transistor, and the current drive transistor is connected to the source terminal of the second switch transistor. Is connected to the drain terminal of the second switch transistor, and the current driving transistor is connected to the drain terminal of the second switch transistor.
- a drain terminal of the current driving transistor ; a power supply line connected to a source terminal of the current driving transistor; a capacitive element connected between a gate terminal of the current driving transistor and the power supply line;
- a control signal input terminal is connected to an input terminal of the third switch transistor, a gate terminal of a third switch transistor is connected to an output terminal of the inverter, and a drain terminal of the third switch transistor is connected to the first switch.
- the current output terminal is connected to the source terminal of the third switching transistor, and the reference current source is connected to the end of the current line.
- the current driving transistor since the drain terminal and the gate terminal of the current driving transistor are conducting, the current driving transistor operates in the saturation region, the reference current source is connected to the end of the current line, and the power supply line The gate voltage of the current driving transistor changes so that a constant current flows in the direction of the current line, and the potential difference between the source and the gate of the current driving transistor at this time is held in the capacitor.
- the output from the latch circuit is connected to the control signal input terminal, and the output stage can be arbitrarily selected every several stages At the same time, the width of the pulse of the control signal can be arbitrarily changed, so that the pulse width may be adjusted according to the time required to store the necessary charge in the capacitor.
- FIG. 6B shows one example of the current source circuit, and the current source circuit is not limited to this configuration.
- a current mirror type current source circuit may be used.
- FIG. 7 is a diagram showing Embodiment 4 of the present invention. It is composed of a shift register circuit 702 composed of a register circuit 701, a latch circuit array 704 composed of a latch circuit 703, and a pixel circuit 706 having a current source circuit 709. A pixel section 707, a latch pulse generating circuit 705, a reference current source 708, a current line 710, and a current source control signal line 711.
- the latch pulse generation circuit 705 may be formed on the same substrate as the shift register circuit 702 or the latch circuit array 704, or may be formed on a different substrate.
- the current source control signal lines connected to the output terminals of the latch circuit are respectively connected to current source circuits in a plurality of pixel circuits.
- current lines connected to the plurality of reference current sources are arranged so as to intersect the output wirings of the latch circuit, and each is connected to a current source circuit in the plurality of pixel circuits.
- FIG. 8A illustrates a pixel circuit that can be used in this embodiment mode. This is an example.
- Each pixel has a current source circuit 801, a power supply line 802, a light emitting element driving transistor 803, a video signal holding capacitor 804, a light emitting element 805, and a source signal line 806. And a switching transistor 807 and a gate signal line 808.
- the source signal line is connected to one of the source and drain terminals of the switching transistor 808, and the gate terminal of the light emitting element driving transistor 803 is connected to the other terminal.
- a capacitor 804 for holding a video signal is connected between the gate terminal of the light emitting element driving transistor 803 and the power supply line 802, and the source and drain terminals of the light emitting element driving transistor are connected.
- a light emitting element is connected to one terminal, and a current source circuit is connected between the other terminal and a power supply line.
- the pixel configuration illustrated in FIG. 8A is an example of a pixel including a current source circuit in the pixel, and is not limited to this configuration.
- the pixel configuration of this embodiment mode is not limited as long as the pixel has a current source circuit. Such a configuration may be used.
- FIG. 8B shows an example of a current source circuit in the pixel configuration shown in FIG. 8A.
- This current source circuit includes a current driving transistor 811, a first switch transistor 812, a second switch transistor 813, a current source capacitor 814, a current source control signal line 8 1 5. It consists of current line 8 16, third switch transistor 8 17, terminal A and terminal B.
- the current source control signal lines 8 15 are connected to the respective gate terminals of the first switch transistor 8 12, the second switch transistor 8 13, and the third switch transistor 8 17.
- the current line 816 is connected to one of the source and drain terminals of the first switching transistor 812, and the other terminal is connected to the source and drain of the third switching transistor 817.
- One of the drain terminals is connected, the other terminal is connected to terminal A, and one of the source-drain terminals of the second switching transistor 8 13 is connected to a current line 8 16
- the gate terminal of the current driving transistor 811 is connected to the other terminal, the terminal B is connected to one of the source and drain terminals of the current driving transistor, and the other terminal is connected to the other terminal. Terminal for the first switch
- the connection between one of the source and drain terminals of the transistor 811 and one of the source and drain terminals of the third switching transistor is connected to the gate terminal of the current driving transistor 811.
- a current source capacitive element is connected between terminals B.
- a power supply line is connected to terminal B, and a light emitting element is connected to terminal A via a light emitting element driving transistor.
- the operation of this current source circuit differs slightly in connection and configuration, but is described in Embodiment 3. The description is omitted because it is the same as that described above.
- FIG. 8B shows an example of a current source circuit that can be used in the present embodiment, and the current source circuit may have any configuration.
- the connection relationship may be different, or a current mirror type current source circuit may be used.
- a level shifter circuit for changing the voltage of the output signal from the latch circuit may be inserted between the latch circuit and the pixel circuit.
- FIG. 10 shows Example 1 of the present invention.
- a plurality of pixels 1 0 0 0 has a display section 1 0 5 arranged in a matrix of m rows and n columns, and a source signal line driving circuit 1 0 0 3 is provided around the display section 1 0 5. It has a write gate signal line drive circuit 104, a current source control gate signal line drive circuit 1007, and a current output drive circuit.
- a source signal line 1001 represented by S1 to Sn and a current line 1008 represented by I1 to In are connected to the pixel 1000 corresponding to the column, and
- the write gate signal lines denoted by G 1 to G m and the current source control gate signal lines denoted by C 1 to C m 106 are both connected to the pixel 100 0 corresponding to the row. Have been. Actually, other power supply lines are connected to the pixels, but they are omitted here.
- the current output drive circuit uses the circuit configuration described in Embodiment 3 of the present invention, supplies a constant current to the pixel, and controls the current source control gate signal.
- the circuit configuration described in Embodiment 4 of the present invention may be used for the line driving circuit.
- Known configurations may be used for the source signal line driver circuit and the write gate signal line driver circuit.
- FIG. 11 shows an example of a case where a module is formed with the above configuration.
- Display section with pixel circuits arranged on TFT substrate 110, source signal line drive circuit 1101, write gate signal line drive circuit 1103, current control gate signal A line drive circuit 1105 and a current output drive circuit are manufactured.
- a light-emitting element and a counter electrode are formed and sealed using a counter substrate 110.
- paste the FPC supply the signal and power from the outside through the FPC, operate the drive circuit, and display the image.
- FIG. 12 shows a top view of a part of the current source control gate signal line drive circuit of the first embodiment
- FIG. 13 (A) shows an equivalent circuit of this top view.
- One stage in Fig. 13 (A) corresponds to the top view.
- Fig. 13 (B) shows the configuration of the latch circuit.
- Electronic devices using a display device using the semiconductor device of the present invention include a video camera, a digital camera, a goggle-type display (head mounted display), a navigation system, a sound reproducing device (such as a power audio device, an audio component device), Note-type personal computers, game consoles, portable information terminals (mobile computers, mobile phones, portable game consoles, e-books, etc.), and image playback devices equipped with recording media (specifically, Digital Versatile Disc (DVD) ) And other devices that have a display that can display the image on a recording medium).
- DVD Digital Versatile Disc
- FIG. 14 shows specific examples of electronic devices. Note that the electronic devices shown in this embodiment are only a few examples, and are not limited to these applications.
- FIG. 14A illustrates a display, which includes a housing 201, a support base 200, a display portion 2003, a part of speakers 2004, a video input terminal 205, and the like.
- a display device using the semiconductor device of the present invention can be used for the display portion 203. According to the present invention, the display shown in FIG. 14A is completed. Since a display device using the semiconductor device of the present invention is a self-luminous type, it does not require a backlight and can have a display portion thinner than a liquid crystal display.
- the display includes all information display devices for personal computers, TV broadcast reception, advertisement display, and the like.
- Fig. 14 (B) shows a digital still camera, main unit 210, display unit 210, image receiving unit 210, operation keys 210, external connection port 210, shirt shirt Includes 1 210 6 etc.
- a display device using the semiconductor device of the present invention can be used for the display portion 210. According to the present invention, a digital still camera shown in FIG. 14B is completed.
- Figure 14 (C) shows a notebook personal computer, with a main body 222, a housing 222, a display 2203, a keypad 2204, and an external connection port. Includes 2 205, pointing mouse 220, etc.
- a display device using the semiconductor device of the present invention can be used for the display portion 2203. Further, according to the present invention, a notebook personal combination shown in FIG. 14C is completed.
- Figure 14 (D) shows the mobile computer, main unit 2301, display unit 2302, switch 2303, operation keys 2304, infrared port 2 Includes 3 0 5 etc.
- a display device using the semiconductor device of the present invention can be used for the display portion 2302. According to the present invention, a mobile computer shown in FIG. 14D is completed.
- Fig. 14 (E) shows a portable image reproducing device (specifically, a DVD reproducing device) equipped with a recording medium.
- Reference numeral 403 mainly displays image information
- display portion B 2404 mainly displays character information.
- a display device using the semiconductor device of the present invention can be used for these display portions A, B 2403, and 2404.
- the image reproducing device provided with the recording medium includes a home game machine and the like. Further, according to the present invention, the DVD reproducing apparatus shown in FIG. 14 (E) is completed.
- Fig. 14 (F) shows a goggle type display (head-mounted display), which includes a main body 2501, a display section 2502, and an arm section 2503.
- a display device using the semiconductor device of the present invention can be used for the display portion 2502. Further, according to the present invention, a goggle type display shown in FIG. 14 (F) is completed.
- Figure 14 (G) shows a video camera, main body 2601, display section 2602, housing 2603, external connection port 2604, remote control receiving section 2605, image receiving Unit 260, Notebook 260, Voice input unit 260, Operation key 260, etc. are included.
- a display device using the semiconductor device of the present invention can be used for the display portion 2602. Further, according to the present invention, the video camera shown in FIG. 14 (G) is completed.
- Fig. 14 (H) is a mobile phone, and the main body 2701, housing 2702, display section 2703, audio input section 2704, audio output section 2705, operation Includes keypad 276, external connection port 270, antenna 270, etc.
- a display device using the semiconductor device of the present invention can be used for the display portion 2703. Note that the display portion 2703 can display a white character on a black background to reduce current consumption of the mobile phone. Further, according to the present invention, the mobile phone shown in FIG. 14 (H) is completed.
- the light including the output image information can be enlarged and projected by a lens or the like and used for a front-type or rear-type projector.
- the above-mentioned electronic devices often display information distributed through electronic communication lines such as INN-NET @ CATV (cable television), and in particular, the opportunity to display moving image information is increasing. Since the response speed of the light-emitting material is extremely high, a display device using the semiconductor device of the present invention is preferable for displaying moving images.
- a light-emitting portion consumes power. Therefore, it is desirable to display information so that the light-emitting portion is reduced as much as possible. Therefore, when a display device is used for a portable information terminal, particularly a display unit mainly for character information such as a mobile phone or a sound reproducing device, the character information is formed by a light emitting portion with a non-light emitting portion as a background. It is desirable to drive.
- the applicable range of the present invention is extremely wide, and the present invention can be used for electronic devices in all fields.
- the electronic device of the second embodiment can use the configuration shown in the first embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004536355A JP4397811B2 (ja) | 2002-12-27 | 2003-12-19 | 半導体装置、el表示装置、及び電子機器 |
KR1020057010968A KR101060172B1 (ko) | 2002-12-27 | 2003-12-19 | 반도체장치, 발광 표시장치 및 그들의 구동방법 |
EP03780933.2A EP1577864B1 (en) | 2002-12-27 | 2003-12-19 | Semiconductor device, light-emitting display apparatus, and method for driving them |
AU2003289450A AU2003289450A1 (en) | 2002-12-27 | 2003-12-19 | Semiconductor device, light-emitting display apparatus, and method for driving them |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-378896 | 2002-12-27 | ||
JP2002378896 | 2002-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004061809A1 true WO2004061809A1 (ja) | 2004-07-22 |
Family
ID=32708355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/016357 WO2004061809A1 (ja) | 2002-12-27 | 2003-12-19 | 半導体装置、発光表示装置およびそれらの駆動方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7307604B2 (ja) |
EP (1) | EP1577864B1 (ja) |
JP (1) | JP4397811B2 (ja) |
KR (1) | KR101060172B1 (ja) |
CN (1) | CN100483484C (ja) |
AU (1) | AU2003289450A1 (ja) |
WO (1) | WO2004061809A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006106664A (ja) * | 2004-09-08 | 2006-04-20 | Fuji Electric Holdings Co Ltd | 有機el発光装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100599657B1 (ko) | 2005-01-05 | 2006-07-12 | 삼성에스디아이 주식회사 | 표시 장치 및 그 구동 방법 |
EP1856685A2 (en) * | 2005-03-02 | 2007-11-21 | Koninklijke Philips Electronics N.V. | Active matrix display devices and methods of driving the same |
TWI327720B (en) * | 2005-03-11 | 2010-07-21 | Sanyo Electric Co | Active matrix type display device and driving method thereof |
JP4986468B2 (ja) * | 2005-03-11 | 2012-07-25 | 三洋電機株式会社 | アクティブマトリクス型表示装置 |
JP2006251453A (ja) * | 2005-03-11 | 2006-09-21 | Sanyo Electric Co Ltd | アクティブマトリクス型表示装置及びその駆動方法 |
KR100667075B1 (ko) * | 2005-07-22 | 2007-01-10 | 삼성에스디아이 주식회사 | 주사 구동부 및 이를 포함하는 유기 전계발광 표시장치 |
KR101277975B1 (ko) * | 2006-09-07 | 2013-06-27 | 엘지디스플레이 주식회사 | 쉬프트 레지스터 및 이를 구비한 데이터 드라이버,액정표시장치 |
JP5852855B2 (ja) | 2010-11-24 | 2016-02-03 | 株式会社半導体エネルギー研究所 | 発光素子、発光装置、照明装置、及び電子機器 |
US20160260392A1 (en) * | 2015-03-03 | 2016-09-08 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, method for driving semiconductor device, and program |
US10008167B2 (en) * | 2015-03-03 | 2018-06-26 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, method for driving semiconductor device, and program |
CN107993606B (zh) * | 2018-01-22 | 2021-02-26 | 京东方科技集团股份有限公司 | 驱动电路及其驱动方法、电子装置 |
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- 2003-12-19 KR KR1020057010968A patent/KR101060172B1/ko active IP Right Grant
- 2003-12-19 WO PCT/JP2003/016357 patent/WO2004061809A1/ja active Application Filing
- 2003-12-19 CN CNB200380107614XA patent/CN100483484C/zh not_active Expired - Fee Related
- 2003-12-19 AU AU2003289450A patent/AU2003289450A1/en not_active Abandoned
- 2003-12-19 JP JP2004536355A patent/JP4397811B2/ja not_active Expired - Fee Related
- 2003-12-24 US US10/744,066 patent/US7307604B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
CN100483484C (zh) | 2009-04-29 |
CN1732498A (zh) | 2006-02-08 |
EP1577864A4 (en) | 2009-01-21 |
US7307604B2 (en) | 2007-12-11 |
EP1577864B1 (en) | 2013-08-14 |
KR101060172B1 (ko) | 2011-08-29 |
EP1577864A1 (en) | 2005-09-21 |
JPWO2004061809A1 (ja) | 2006-05-18 |
KR20050093775A (ko) | 2005-09-23 |
AU2003289450A1 (en) | 2004-07-29 |
JP4397811B2 (ja) | 2010-01-13 |
US20040252084A1 (en) | 2004-12-16 |
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