china edp lcd panel free sample

Our company"s main products are various LCD screen panels and touch panels from 3.5 inch to 55 inch. We sell these panels according to the specifications of known brands like BOE, CHIMEI, INNOLUX,AUO, HannStar, CPT ,Century,JDI, LG display and so on.

6.Special share LCD can be customized,such as bar,square and round LCD display can be customized or any other special shaped display is available to custom.

As a TFT LCD manufacturer, we import mother glass from brands including BOE, INNOLUX, and HANSTAR, Century etc., then cut into small size in house, to assemble with in house produced LCD backlight by semi-automatic and fully-automatic equipment. Those processes contain COF(chip-on-glass), FOG(Flex on Glass) assembling, Backlight design and production, FPC design and production. So our experienced engineers have ability to custom the characters of the TFT LCD screen according to customer demands, LCD panel shape also can custom if you can pay glass mask fee, we can custom high brightness TFT LCD, Flex cable, Interface, with touch and control board are all available.

6.Special share LCD can be customized,such as bar,square and round LCD display can be customized or any other special shaped display is available to custom.

As a TFT LCD manufacturer, we import mother glass from brands including BOE, INNOLUX, and HANSTAR, Century etc., then cut into small size in house, to assemble with in house produced LCD backlight by semi-automatic and fully-automatic equipment. Those processes contain COF(chip-on-glass), FOG(Flex on Glass) assembling, Backlight design and production, FPC design and production. So our experienced engineers have ability to custom the characters of the TFT LCD screen according to customer demands, LCD panel shape also can custom if you can pay glass mask fee, we can custom high brightness TFT LCD, Flex cable, Interface, with touch and control board are all available.

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Arquiste have confirmed that they don"t test on animals at any point during production, and neither do their suppliers or any third parties. They also don"t sell to China. This company is US-based, and their Eau de Parfum retail for $165 - $190. Available at Barneys.

Another niche brand that answered all my questions and doesn"t sell in China. This UK perfume house has been around since 1827, and their perfumes are in the $95 - $150 range. You can purchase them from Bloomingdale"s.

However, it"s Procter & Gamble that own their fragrance license, and all other P&G fragrances are tested on animals. It"s possible that Stella McCartney has a deal with P&G which ensures that no animal testing is performed for Stella McCartney, and their fragrance may not be sold in mainland China.

We stand by our ethics regarding animal testing, and we have even chosen not to sell our fragrances in China. In order to sell fragrances in China we would have to meet Government regulation which requires animal testing and that is something that we will not allow for any of products. We hope that by promoting these types of values that other fragrance licensees of P&G Prestige to follow us and say no to animal testing.

This is an intro to the FPD-Link display interface, commonly used in laptop and monitor LCD panels. Information surrounding the exact nature of this interface is scattered all over the internet, so I wrote this article to try and make it easier to understand, and potentially useable in your own projects!

FPD-Link is also known as simply "LVDS", although this is technically incorrect since this refers to just the electrical interface, and LVDS is used for many other interfaces too. The actual interface is called FPD-Link (or also FlatLink by some manufacturers), and describes a general interface for connecting LCD panels to graphics controllers, much like VGA or DVI. However it doesn"t describe an exact data format, so many different options exist for different panels, making it not quite as inter-operable as VGA or DVI.

Fortunately you"ll find most (old) laptop LCD panels will use a de-facto format, so it"s actually not too hard to re-use the screens out of that old stack of laptops you have in the basement!

Flat Panel Display Link (FPD-Link) was created by National Semiconductor as a free and open standard for connecting the output of a GPU or video processor to an LCD panel"s timing controller. It superseeds TTL/CMOS parallel interfaces which were very limited in the resolution they could achieve[1]. Although FPD-Link itself is becoming outdated with the rise of next generation LCD monitors (2440p and 4K!), it is still used in most current generation laptops and desktop monitors. You can read more about the FPD-Link standard in Texas Instruments" app-note[2].

The protocol itself is fairly straight-forward; there"s no complex control/configuration/packetization of the video data, and usually a panel will accept any resolution given to it since it relies on horizontal and vertical synchronization signals like most other video interfaces (See the Synchronization & Timing Section for how this works).

At it"s core, FPD-Link uses a number of Low-Voltage Differential Signalling (LVDS) pairs in order to transfer video data over a high speed link, which is then de-serialized in the LCD panel and used to drive the display. Even though it has less wires than a parallel interface, it allows for much higher speeds due to increased noise tolerance and capabilities of the LVDS pairs (much like how SATA proivdes faster speeds for hard disks than IDE/PATA).

FPD-Link serializes this data into channels containing 7 bits of data per clock cycle, as shown in Figure 2. For a typical video interface with 18 bits per pixel (bpp), there are 21 bits of data per clock serialized into a total of 4 LVDS channels (3 data + 1 clock, or "3D+1C"). There are of course many other configurations possible depending on the number of links and data bits. For example, a dual-link 24 bpp interface (common in desktop monitors) would use 2x 4 LVDS data channels + 2 LVDS clock channels, or "8D+2C". Looking at the pairs of wires on the LCD"s circuit board can provide a very good hint as to which format it uses!

FPD-Link has a maximum bandwidth of somewhere around 130Mpps (Mega pixels per second)[3] depending on the transceiver, while the LVDS channels operate at 7x this rate. This limits the maximum allowable resolution to about 1280x800@60Hz. It is usually not possible to drive a 1920x1080p display at 60Hz with just one FPD-Link channel, so two channels are doubled up to support higher resolutions. Some extra high resolution monitors may even use up to 4 FPDLink channels, or eDP (embedded Display Port, a completely different protocol) to further increase the bandwidth.

Most old laptop LCDs will likely be 18 bits per pixel (6 bits per colour), and thus use 3 LVDS data pairs and 1 LVDS clock pair (3D+1C). A total of 21 bits are serialized, and the layout inside the LVDS stream is shown in the following timing diagram:[4] [5]

Some panels will support 24 bpp (8 bits per colour), which uses a fourth LVDS data pair (4D+1C) to increase the bit depth while keeping the bandwidth the same. Unfortunately there are two different standards for how the data is serialized for 24 bpp panels! The difference is which bits the fourth data channel (Y3) contains, and it may either contian the least significant bits (LSB) or most significant bits (MSB) of the pixel. According to Texas Instruments, most 24 bit panels assume the MSB is in the 4th channel[3], although contradicting info says that 24 bit LSB panels are the most common[4]. So if in doubt, check your datasheet! The two different formats are shown in the following timing diagrams:[4] [5]

Note that an 18 bpp panel can be driven by a 24 bpp LSB transmitter by simply omitting the 4th channel (Y3), in which case the lower bits are discarded and it acts as if it was transmitting 6 bits per colour. You cannot drive an 18 bpp panel from a 24 bpp MSB transmitter![4]

Some transceivers may even support 30 bit RGB data[6], which use an additional channel (5 LVDS data channels in total). I"m unsure on the exact format of this data as I don"t have any 30 bit LCD panels.

The data framing format is only half the story when interfacing with an FPD-Link display; the synchronization and timing are also important to ensure the pixels the panel receives actually match the physical panel! This is done through the HSYNC, VYSNC, and DE synchronization signals. It"s not immediately obvious, but not all pixels transmitted are actually displayed - some end up in the so called "blank-time" interval. This is a leftover artifact from the days of CRT monitors when the electron beam actually needed time to move between rows and frames![7] For backwards compatibility the blank-time is still present in DVI & VGA outputs, which is sad because it"s not required at all in digital panels!

If you have a datasheet for your LCD panel, it will usually include a timing diagram specifying the values you should use to display a valid picture. This information is also reflected in the panel"s EDID (if present). Generally this information can be represented in the form of a Coordinated Video Timing (CVT), a VESA standard specifying common timing formats for different resolutions[9].

Some next-gen monitors are moving to a eDP (embedded Display Port), which is pretty much just display port, so it is possible to connect such a display directly to a display port capable video card. I will not go into more detail about it here since I don"t have any of these types of display panels, and my computer doesn"t have display port anyway! However I have heard you can obtain iPad displays cheaply online which use eDP, and can be used as a secondary high-DPI monitor with a simple re-wired display port cable and backlight driver.[12] [13] [14]

MIPI DSI is another protocol widely used in current-gen smartphone/tablet LCDs. It is lower power than FPD-Link and supports higher resolutions. Unfortunately the standard isn"t available to the public so it"s shrouded in mystery, although I have seen one project successfully interface such a display through the use of an FPGA[15], and another project reverse engineering the iPod nano LCD[16]. The popular Raspberry Pi also has a MIPI DSI connector for driving an LCD, but as of the time of writing there is no information on how to use it.

Extended Display Identification Data (EDID) is used as a way to tell the host computer how to drive the panel, and what formats it supports[17]. It"s simply a 256 byte EEPROM chip that communicates over I2C, and both VGA and DVI cables provide signals for this. It makes it possible to connect a panel to a computer and have the computer automatically know what resolution it should output.

This makes re-using an LCD panel a lot easier, since the computer will know exactly how to drive your panel! (provided you have an appropriate LVDS driver)

DISCLAIMER: Reverse-engineering is tricky buisiness. You may permanently damage either your panel or laptop, so don"t do it on anything important! You are responsible for your own safety.

If you don"t have a datsheet for your LCD panel, it is still possible to re-use it with some reverse-engineering skills. This is easiest if you have the LCD connected to a working laptop so you can probe the signals.

The LVDS wires should also be easy to locate - they are always routed as pairs on the PCB, and the wires may be twisted or shielded. For a laptop LCD there should be 3-4 pairs.

There are two main types of backlighting in LCD panels: CCFL (Flurorescent), and LED. CCFL was widely used in older laptops before LED backlights came around, and are pretty obvious because you will find a large inverter module with a transformer on it, probably covered in "Warning: High Voltage!" stickers. These transformers usually have multiple pins: +V, GND, and Enable/Dimming pins. +V is usually either +12V or +5V.

LED backlights result in much thinner displays, and usually need a dedicated driver, which may or may not be built into the LCD panel. LED backlights may be split into an Anode and several Cathode wires, consiting of several "strings" of LEDs.

Start by disconnecting the power supply & backlight and connecting it to your own supply (with the LVDS still connected to your laptop if possible). You should hopefully see some change in appearance of the panel.

If you want to use an LVDS LCD panel with a computer or SBC, you will need to find a way to interface it with your device. Since most computers/SBCs don"t have LVDS outputs, you will probably need an HDMI/DVI to LVDS converter board. Here are some options for interfacing:

Apparently you can ask the seller to match the driver board to your LCD"s datasheet, although I"ve never tried this. It should mostly just work with your panel provided it has an EDID chip.

In all the above cases you will need to ensure the data format of your LCD panel matches the data format of your LVDS driver. As mentioned earlier, the most common format for old LCD panels is 18bpp (3D+1C), which is compatible with a 24bpp LSB driver (since the 4th output channel Y3 can be ommitted)

New York, United States, Aug. 15, 2022 (GLOBE NEWSWIRE) -- The surface of an electronic paper display is electrically charged and duplicates the appearance of ink on paper. The electronic paper display (EPD) is used for e-books, electronic newspapers, portable signs, and folding displays. Due to their enhanced characteristics, such as readability in direct light (indoor and outdoor environments), low power consumption, lightweight, durability, and convenient construction, EPDs have significantly advanced display technology. The primary benefits of electronic paper over conventional LCD screens are its paper-like reading and low power consumption.

EPDs have significantly advanced display technology due to enhanced characteristics, such as readability under direct light (indoor and outdoor conditions), lower power consumption, lighter weight, greater durability, and convenient construction. The primary advantages of electronic paper over conventional LCD screens are its paper-like readability and low power consumption. Companies like E Ink Holdings Inc. remained committed to advancing EPD goods and technologies. In addition to consistently expanding EPD module technology, the business has committed itself to develop color EPD technology. As the product applications and ecosystem of e-paper technology continue to evolve, the company plays a crucial position in the total supply chain. It remains a significant vendor in terms of technology and production capacity through constant innovation and investment of resources.

Europe occupies the largest market share and is estimated to grow at a CAGR of 14.5% during the forecast period. In the region, e-ink signage is not restricted to outdoor signs but includes indoor signs. Opticon, a provider of scanning solutions, digital signage, and electronic shelf labels, offers a variety of e-paper display-based Electronic Shelf Labels (ESL) and colorful signs for creating a unique retail and warehouse environment. ESLs are utilized in mobile shops, pharmacies, point-of-sale systems, food retail, home appliances, warehouses, industries, and room signs. In addition, European market participants have been introducing EDP-based mobile phones and tablets to the market, fostering market expansion.

Asia-Pacific is the fastest-growing region. This is attributable to increasing investment in industrial sectors and various applications. In the region, electronic paper displays (EDPs) are utilized in multiple industries. The region is also a leader in the retail sector"s electronic display paper technology integration. The region"s market participants have been continuously innovating to introduce improved items. For instance, in April 2021, Guangzhou OED Technologies Inc., a Guangdong, China-based provider of electronic-paper displays, debuted one of the world"s thinnest electronic price tags in collaboration with a Fujian, China-based producer of electronic price tags. Such occurrences boost the market"s expansion.