CN204515311U - Silicon base liquid crystal display chip and display device - Google Patents
Silicon base liquid crystal display chip and display device Download PDFInfo
- Publication number
- CN204515311U CN204515311U CN201520200678.4U CN201520200678U CN204515311U CN 204515311 U CN204515311 U CN 204515311U CN 201520200678 U CN201520200678 U CN 201520200678U CN 204515311 U CN204515311 U CN 204515311U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- silicon base
- base liquid
- core body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
A kind of silicon base liquid crystal display chip and display device, silicon base liquid crystal display chip comprises core body and MIPI_DSI interface, the data channel of MIPI_DSI interface and clock lane respectively incoming data signal and clock signal to core body, core body exports corresponding light beam according to the data-signal received by projected area, shows for being projected to show media synthetic image.Carry out Signal transmissions by the data channel of MIPI_DSI interface and clock lane, decrease connecting line radical, reduce electromagnetic interference.
Description
Technical field
The utility model relates to display device technology field, particularly relates to a kind of silicon base liquid crystal display chip and display device.
Background technology
LCOS (Liquid Crystal on Silicon) the i.e. attached silicon of liquid crystal, is also liquid crystal on silicon, is a kind of based on reflective-mode, the matrix liquid crystal display device that size is very little.This matrix employing CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor (CMOS)) technology on the silicon die processing and fabricating forms.Adopt its light of projector of LCOS technology not to be through LCD, but adopt reflection mode to form image, light utilization ratio can reach 40%.LCOS has the features such as light utilization ratio is high, volume is little, can realize high resolving power and sufficient color representation easily.
Traditional silicon base liquid crystal display chip adopts parallel interface to carry out video data input, interface comprises the video data bus end of 24 or 18 or 16, pixel clock end, the effective Enable Pin of data, synchronous end, field synchronization end, cut-off signals end and monochrome/color mode control end, need other low speed serial ports as SPI (SerialPeripheral Interface in addition, Serial Peripheral Interface (SPI)) or IIC (Inter-Integrated Circuit IC bus) carry out configuring chip internal register, chip internal circuits as shown in Figure 1, for simple reverser structure, adopt voltage transmission pattern.Adopting the connecting line quantity needed for parallel interface more, there is the large shortcoming of electromagnetic interference (EMI) in traditional silicon base liquid crystal display chip.
Utility model content
Based on this, be necessary for the problems referred to above, a kind of silicon base liquid crystal display chip and the display device that reduce electromagnetic interference (EMI) are provided.
A kind of silicon base liquid crystal display chip, comprise core body and MIPI_DSI interface, described core body is provided with projected area, described MIPI_DSI interface is arranged at described core body and is electrically connected with described core body, and described MIPI_DSI interface comprises the data channel of transmission of data signals and the clock lane of transmit clock signal.
A kind of display device, comprise controller and receiver, also comprise above-mentioned silicon base liquid crystal display chip, described controller connects described receiver, and described controller is connected with described core body by described MIPI_DSI interface.
Above-mentioned silicon base liquid crystal display chip and display device, silicon base liquid crystal display chip comprises core body and MIPI_DSI interface, the data channel of MIPI_DSI interface and clock lane respectively incoming data signal and clock signal to core body, core body exports corresponding light beam according to the data-signal received by projected area, shows for being projected to show media synthetic image.Carry out Signal transmissions by the data channel of MIPI_DSI interface and clock lane, compared with traditional silicon base liquid crystal display chip, decrease connecting line radical, reduce electromagnetic interference.
Accompanying drawing explanation
Fig. 1 is the internal circuit diagram of traditional silicon base liquid crystal display chip;
Fig. 2 is that the structure of silicon base liquid crystal display chip in the utility model one embodiment is same;
Fig. 3 is the schematic diagram of internal interface circuit in the utility model one embodiment.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in instructions of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.
A kind of silicon base liquid crystal display chip, as shown in Figure 2, comprise core body 110 and MIPI_DSI (MobileIndustry Processor Interface-Display Serial Interface, mobile Industry Processor Interface-display serial line interface) interface 120, core body 110 is provided with projected area 112, and projected area 112 is for output beam.MIPI_DSI interface 120 is arranged at core body 110 and is electrically connected with core body 110, is specifically connected with the electronic devices and components of core body 110 inside.MIPI_DSI interface 120 comprises data channel and clock lane.Data channel and clock lane are respectively used to incoming data signal and clock signal to core body, core body 110 exports corresponding light beam according to the data-signal received by projected area 112, show for being projected to show media synthetic image, such as, by projection objective amplification imaging to giant-screen completes Projection Display.
MIPI_DSI interface 120 transfer rate is fast and low in energy consumption, can reduce the power consumption of silicon base liquid crystal display chip.The quantity of data channel can be specifically 1-4, can select the quantity of data channel when carrying out data transmission according to actual conditions, as 1 to 4 data channel selected to carry out data transmission according to the resolution of the data of transmission.During transmission dynamic video signal, use fast mode, utilize 4 data channel transmission datas; When transmission still image and configuration core body internal register, use low-speed mode, utilize 1 data channel transmission data.Select the data channel of varying number to carry out data transmission according to the actual requirements, improve the applicability of silicon base liquid crystal display chip.
Above-mentioned silicon base liquid crystal display chip carries out Signal transmissions by the data channel of MIPI_DSI interface 120 and clock lane, decreases connecting line radical, reduces electromagnetic interference.
Wherein in an embodiment, data channel comprises two signal wires of polarity complementation.The electromagnetic field of the complementation of two signal wire generations is cancelled out each other, and reduces electromagnetic interference, further increases the ability of silicon base liquid crystal display chip electromagnetism interference.Similarly, clock lane also can comprise two signal wires of polarity complementation, reduces electromagnetic interference.
Further, as shown in Figure 3, core body 110 comprises internal interface circuit 114, and internal interface circuit 114 comprises power supply BT, the first switching tube Q1, second switch pipe Q2, the first resistance R1, the second resistance R2 and comparer U1.The output terminal of power supply BT connects the input end of the first switching tube Q1 and second switch pipe Q2, a signal wire in the control end difference connection data passage of the first switching tube Q1 and second switch pipe Q2, the output terminal of the first switching tube Q1 is by the first resistance R1 ground connection, and the first switching tube Q1 is connected the in-phase input end of comparer U1 with the common port of the first resistance R1, the output terminal of second switch pipe Q2 is by the second resistance R2 ground connection, and second switch pipe Q2 is connected the inverting input of comparer U1 with the common port of the second resistance R2.
When carrying out data transmission, the level of two signal wire transmission in data channel can change, and the on off operating mode of the first switching tube Q1 and second switch pipe Q2 also can correspondingly change.Adopt difference current transmission mode to suppress common-mode signal, difference mode signal is amplified.The electric current of comparer U1 to its in-phase input end and inverting input compares, and exports corresponding signal to core body 110 other circuit inner according to comparative result by its output terminal.Such as, export high level when electric current higher than inverting input of the electric current of in-phase input end, the output low level when electric current lower than inverting input of the electric current of in-phase input end.
Particularly, the first switching tube Q1 and second switch pipe Q2 can be triode, can be also metal-oxide-semiconductor, and in the present embodiment, the first switching tube Q1 is P channel MOS tube, and/or second switch pipe Q2 is P channel MOS tube.Be P channel MOS tube for the first switching tube Q1 and second switch pipe Q2, a signal wire in its grid difference connection data passage, source electrode all connects the output terminal of power supply BT, drains respectively by the first resistance R1 and the second resistance R2 ground connection.
Carried out the situation of data transmission by two signal wires for data channel in the present embodiment, improve the circuit structure of core body 110 inside, adopt difference current transmission mode to receive data, message transmission rate is high, antijamming capability is strong, can reduce the interference of electromagnetic radiation further.Be appreciated that for multiple data channel, it is corresponding with it that an internal interface circuit 114 all can be designed in core body 110 inside, receives the data of transmission.
In addition, wherein in an embodiment, the control end of the first switching tube Q1 is connected with the signal wire of in data channel by the first port, and the control end of second switch pipe Q2 is connected with another root signal wire in data channel by the second port; Internal interface circuit 114 also comprises the 3rd resistance, and the 3rd resistance one end connects the first port, and the 3rd resistance other end connects the second port.The in-phase input end of comparer U1 and the level of inverting input is changed through the electric current of the 3rd resistance by induced flow, thus the level signal that the output terminal controlling comparer U1 exports, realize data receiver, can further improve antijamming capability.
The utility model additionally provides a kind of display device, comprises controller and receiver, also comprises above-mentioned silicon base liquid crystal display chip, and controller connects receiver, and controller is connected with core body by MIPI_DSI interface.
Display device specifically can be applicable to projector, Wearable display glasses and intelligent helmet etc., for projector, the receiver of display device is for receiving the data-signal of user's input, controller is sent to core body by the MIPI_DSI interface of silicon base liquid crystal display chip after obtaining data-signal, core body exports corresponding light beam according to the data-signal received by projected area, light beam is projected to screen after being amplified by projector lens reflection, realizes image display.
Wherein in an embodiment, display device also can comprise the storer of connection control device.The data-signal that receiver receives is sent to storer and stores by controller, so that image repeats display, also can be carry out Projection Display again after data in advance in enormous quantities is continued storage, improve the ease of use of display device.
Above-mentioned display device, silicon base liquid crystal display chip carries out Signal transmissions by the data channel of MIPI_DSI interface and clock lane, decreases connecting line radical, reduces electromagnetic interference.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. a silicon base liquid crystal display chip, it is characterized in that, comprise core body and MIPI_DSI interface, described core body is provided with projected area, described MIPI_DSI interface is arranged at described core body and is electrically connected with described core body, and described MIPI_DSI interface comprises the data channel of transmission of data signals and the clock lane of transmit clock signal.
2. silicon base liquid crystal display chip according to claim 1, is characterized in that, described data channel comprises two signal wires of polarity complementation.
3. silicon base liquid crystal display chip according to claim 2, is characterized in that, described core body comprises internal interface circuit, and described internal interface circuit comprises power supply, the first switching tube, second switch pipe, the first resistance, the second resistance and comparer,
The output terminal of described power supply connects the input end of described first switching tube and second switch pipe, described first switching tube and the control end of second switch pipe are connected a signal wire in described data channel respectively, the output terminal of described first switching tube is by described first resistance eutral grounding, and described first switching tube is connected the in-phase input end of described comparer with the common port of the first resistance, the output terminal of described second switch pipe is by described second resistance eutral grounding, and described second switch pipe is connected the inverting input of described comparer with the common port of the second resistance.
4. silicon base liquid crystal display chip according to claim 3, is characterized in that, described first switching tube is P channel MOS tube, and/or described second switch pipe is P channel MOS tube.
5. silicon base liquid crystal display chip according to claim 3, it is characterized in that, the control end of described first switching tube is connected with the signal wire of in described data channel by the first port, and the control end of described second switch pipe is connected with another root signal wire in described data channel by the second port; Described internal interface circuit also comprises the 3rd resistance, and described 3rd resistance one end connects described first port, and the described 3rd resistance other end connects described second port.
6. silicon base liquid crystal display chip according to claim 1, is characterized in that, the quantity of described data channel is 1-4.
7. silicon base liquid crystal display chip according to claim 1, is characterized in that, described clock lane comprises two signal wires of polarity complementation.
8. a display device, it is characterized in that, comprise controller and receiver, also comprise the silicon base liquid crystal display chip described in claim 1-7 any one, described controller connects described receiver, and described controller is connected with described core body by described MIPI_DSI interface.
9. display device according to claim 8, is characterized in that, also comprises the storer connecting described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200678.4U CN204515311U (en) | 2015-04-03 | 2015-04-03 | Silicon base liquid crystal display chip and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200678.4U CN204515311U (en) | 2015-04-03 | 2015-04-03 | Silicon base liquid crystal display chip and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204515311U true CN204515311U (en) | 2015-07-29 |
Family
ID=53713264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520200678.4U Active CN204515311U (en) | 2015-04-03 | 2015-04-03 | Silicon base liquid crystal display chip and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204515311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269549A (en) * | 2018-03-20 | 2018-07-10 | 苏州芯盟慧显电子科技有限公司 | A kind of microdisplay on silicon based on digital pixel driving |
-
2015
- 2015-04-03 CN CN201520200678.4U patent/CN204515311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269549A (en) * | 2018-03-20 | 2018-07-10 | 苏州芯盟慧显电子科技有限公司 | A kind of microdisplay on silicon based on digital pixel driving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104704704B (en) | A kind of charging circuit and terminal | |
| CN106462019B (en) | Liquid crystal display panel and its control method, liquid crystal display device | |
| US10013378B2 (en) | ASIC chip system dedicated for optical three-dimensional sensing | |
| CN105955532B (en) | Touch-control display panel and its driving circuit, electronic equipment | |
| US20240161672A1 (en) | Electronic circuit having display driving function, touch sensing function and fingerprint sensing function | |
| CN106227686A (en) | A kind of MIPI interface signal level shifting circuit based on domestic FPGA and application thereof | |
| CN110232040A (en) | Analog switch and electronic equipment | |
| CN204515311U (en) | Silicon base liquid crystal display chip and display device | |
| CN203351179U (en) | Ultra-high-definition display frequency multiplication and amplification driving device | |
| CN206922923U (en) | It is a kind of that there is the HDMI switcher for toggling picture function | |
| CN110113552A (en) | A kind of miniscope drive circuit system | |
| CN213960238U (en) | Display device and system | |
| WO2022247135A1 (en) | Display panel and display device | |
| CN108924524A (en) | A kind of projector based on mobile network | |
| CN104994320B (en) | A kind of HDMI service equipments | |
| CN103391406B (en) | A kind of video switch circuit and changing method thereof | |
| CN204086740U (en) | A kind of LCD display interface switching device | |
| CN106060341A (en) | Method for reducing power consumption of screen driver board and low-power-consumption screen driver board | |
| TW595233B (en) | Image processing device for digital display | |
| CN204669505U (en) | A kind of multifunctional high speed image pick-up card | |
| CN104202573A (en) | Intelligent traffic video monitoring system | |
| CN205051952U (en) | Light control system output interface expanding unit | |
| CN204392272U (en) | A kind of digital transformer substation message flow monitoring instrument | |
| CN203747908U (en) | Data transmission circuit for astronomical CCD camera | |
| CN102761723A (en) | MHL (Mobile High-Definition Link) detection device and charge power supply management method of digital multimedia receiving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230707 Address after: A201, CEC Software Headquarters Building, No. 39, Jianshan Road, High tech Zone, Changsha City, 410000, Hunan Province Patentee after: HUNAN JINXIN ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee after: Nanjing Xinshi Semiconductor Co.,Ltd. Address before: A201, CEC Software Headquarters Building, No. 39, Jianshan Road, High tech Zone, Changsha City, 410000, Hunan Province Patentee before: HUNAN JINXIN ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee before: SUZHOU XINMENG HUIXIAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |