Production Cycle and Inventory Status of LCD TV Supply Chain

Production Cycle and Inventory Status of LCD TV Supply Chain
Key Points:The production cycle for display driver ICs, from IC design to semiconductor wafer foundry, followed by gold bumping, packaging, and testing, takes about 8-10 weeks. Display driver ICs are components with a longer production cycle, and coupled with the bottleneck in semiconductor wafer foundry capacity, it is even harder to ensure sufficient supply.

Production Cycle and Inventory Status of LCD TV Supply Chain

Currently, there is a shortage of LCD TV displays, and panel prices are rising rapidly. This shortage is not only occurring with display panels but also with glass substrates, display driver ICs, polarizers, T-Con (Timing Controller), and other display components.
On the other hand, the strong market demand driven by remote work and entertainment is expected to gradually cool down in the fourth quarter of 2021, while there will be additional TFT LCD capacity added in the second half of 2021. The supply of LCD TV panels will remain tight until the third quarter of 2021, but the situation will change in the fourth quarter.
Omdia predicts three cycles for LCD TV panel prices in 2021:
Price Increase Period
(Q1 2021 – Q2 2021)
From January to May 2021, the optimistic scenario of the COVID-19 pandemic will continue, leading to the following phenomena:
  • Global consumers show a strong desire to purchase TVs. The “stay-at-home” trend includes working from home, studying from home, entertaining at home, and shopping from home. Benefiting from this trend, demand for LCD TVs, laptops, LCD monitors, and tablets remains strong.

  • Brand owners, manufacturers, OEMs, ODMs, and retailers plan to fill channels to sell more products.

  • Global TV brands and OEMs continuously procure more panels to meet business goals (including some duplicate orders).

  • Panel manufacturers significantly raise prices to quickly turn losses into profits. From June 2020 to December 2020, the price of open cells for LCD TVs has increased by 40%-50%. It is expected that from January 2021 to May 2021, there will be an additional increase of 30%-40%.

  • Component shortages (glass substrates, display driver ICs, T-Con, PMIC, polarizers) frequently disrupt the supply chain, making manufacturers more anxious and leading to more orders.

  • Korean panel manufacturers are changing their factory closure plans, extending the operation of Gen7 and Gen8 in Korea until 2021.

  • As both panel and finished product prices continue to rise, the uncertainty and risk of demand decline in the second half of 2021 are increasing.

Price Stability Period
(Q2 2021 – Q3 2021)
Omdia predicts that from June 2021 to September 2021, it will be a cooling and market balancing period, leading to the following phenomena:
  • The “stay-at-home” craze cools down, and panel demand gradually levels off.

  • Panel prices have been rising for 12 consecutive months (from June 2020 to May 2021). Manufacturers and OEMs, ODMs have reached a certain level of losses, so they will gradually control procurement orders.

  • New capacity in China is gradually increasing, including the T7 Gen10.5 TFT LCD plant of Huaxing Optoelectronics, the H5 Gen8.6 TFT LCD plant of HKC Display, and the incremental capacity after the expansion of existing production lines (such as BOE, Huaxing, SIO, etc., are all expanding their existing capacity).

  • Component shortage issues are gradually being resolved. New component capacity (glass furnaces, wafer foundries) is being built rapidly.

  • Panel manufacturers believe that before the pressure of digesting capacity and the component shortage issues are completely resolved, the market remains in a balanced state, so there is no reason to lower panel prices.

Price Decrease Period
(Q4 2021)
Omdia predicts that from October 2021 to December 2021, the market will enter an adjustment period, leading to the following phenomena:
  • Terminal market demand begins to shrink, but it is a mild adjustment rather than a collapse. Because terminal brand manufacturers still need to replenish the currently low channel inventory.

  • With the increase in capacity, the resolution of component shortage issues, and the long-term business relationship pressure, panel manufacturers begin to face the pressure of digesting capacity, leading to lower panel prices.

  • Price competition will start from lower-tier panel manufacturers.

  • To maintain good profit levels, panel manufacturers plan to gradually lower panel prices. However, manufacturers will exert pressure on panel manufacturers before seeing a significant drop in demand.

However, from Q3 2020 to Q3 2021, strong demand and ongoing component shortages have led to significant changes in the production cycle (lead time) and inventory management of the LCD TV supply chain.
We see these changes driven by the following events:
  • Accidents at several glass factories.

  • Continued shortage of display driver ICs and 8-inch semiconductor wafer capacity.

  • Strong demand and sales for terminal market TVs encourage LCD TV brands and OEMs to keep panel orders and demand at a high level, even leading to a certain degree of “double-booking” (providing the same orders and demand forecasts to multiple panel suppliers).

  • The strong sales of LCD TVs in the terminal market have helped retailers clear inventory, and there are even backlogs of orders that cannot meet consumer demand.

  • Supply bottlenecks caused by surges in goods due to the COVID-19 pandemic and quarantine policies have led to severe inefficiencies in the global LCD TV supply chain and logistics.

  • Soaring panel prices have caused panic among LCD TV panel buyers, demanding increased panel allocations.

The table below shows Omdia’s latest analysis of the production cycle and inventory management of the LCD TV display supply chain, as well as the current inventory situation:
Production Cycle and Inventory Status of LCD TV Supply Chain
Let’s take a look at the production cycle and inventory situation of various nodes in the LCD TV display supply chain:

01

Glass Substrate

The production cycle of glass substrates in glass furnaces is about 4-5 weeks, and transportation takes 2-3 weeks. Manufacturers like Corning, AGC, Rainbow, and NEG have local glass furnaces in China to support Chinese manufacturers, but a large amount of glass substrates are also shipped from their furnaces in Korea and Japan to China.
Glass substrate manufacturers generally maintain 4-6 weeks of raw material inventory. These raw materials include quartz powder, strontium carbonate, barium carbonate, boric acid, calcium carbonate, barium nitrate, aluminum oxide, magnesium oxide, boron anhydride, refractory bricks, etc.
Panel manufacturers usually prepare 3-4 weeks of glass substrate inventory to ensure stable operation of TFT LCD wafer factories.
However, due to the tight supply of glass substrates, some panel manufacturers currently have only 1-2 weeks of inventory, and some even have no safety stock at all. Some panel manufacturers in mainland China have had to reduce the capacity utilization rate of the 8.6-generation TFT LCD production line due to insufficient glass substrates.

02

Display Driver IC

The production cycle for display driver ICs, from IC design to semiconductor wafer foundry, followed by gold bumping, packaging, and testing, takes about 8-10 weeks.
Display driver ICs are components with a longer production cycle, and coupled with the bottleneck in semiconductor wafer foundry capacity, it is even harder to ensure sufficient supply. IC manufacturers (usually IC design companies) will maintain 5-6 weeks of inventory to support display panel manufacturers. At the same time, panel manufacturers will also keep a 5-6 week safety buffer inventory for finished display driver ICs – COB (Chip on Board) or COF (Chip on Film).
The supply chain for display driver ICs is not simple, as it involves many suppliers – IC design companies, gold bump manufacturers, wafer foundry manufacturers, PCB manufacturers, gold wire manufacturers, soft film manufacturers, as well as packaging and testing suppliers.
Currently, display driver ICs are the most scarce components in the LCD TV panel supply chain. Everyone is operating under zero inventory or even negative inventory (which means IC suppliers cannot deliver according to panel manufacturers’ orders).
Panel manufacturers are forced to pay higher premiums to obtain driver ICs. Meanwhile, some TV panel buyers, such as Samsung TV, are influencing the allocation of display driver ICs with their power. Some panel manufacturers, like AUO, Innolux, and Sharp, have signed long-term supply agreements with IC manufacturers such as TSMC, UMC, and Fitipower.

03

LCD TV Panel

There are three forms of LCD TV panels – pure cell (referring to cell panels without driver IC bonding), open cell (referring to cells with driver IC and PCB), and LCD modules (referring to complete display modules with backlight units).
The production cycle for arrays and cells is about 1-2 weeks, and then modules need an additional 1-2 weeks. The transportation cycle is very short because panel manufacturers’ inventory levels have always been low. Therefore, the pure cell inventory in panel factories is usually as low as 1-1.5 weeks, meaning only 7-10 days. Panel factories must operate with very lean WIP (Work-In-Process) under high-capacity operation, or they will incur losses.
In most cases, the LCD TV panels shipped by panel manufacturers are in the form of open cells rather than LCD modules. LCD TV OEMs/ODMs or specialized LCD module manufacturers will assemble the backlight units to make them into complete modules. This is known as the BMS (Backlight-Module-System) model.
For the LCD module inventory of panel manufacturers or BMS manufacturers, it is usually 3-4 weeks. In other words, the inventory of panel manufacturers is usually around 4-5 weeks, including all work-in-progress and materials.
However, the current situation is different. Panel manufacturers are facing a shortage of display driver ICs, but they cannot simply stop production, so some panel manufacturers are accumulating pure cell inventory. Several TV display panel manufacturers in mainland China are accumulating some pure cell inventory, waiting for the supply of display driver ICs. The inventory of pure cells has reached 2-3 weeks, which is higher than normal levels. The inventory of open cells is at 1-2 weeks.
In other words, pure cells (referring to cell panels without driver IC bonding) are currently in a higher inventory state.

04

LCD TV OEMs, Brand Owners,

ODMs, and BMS Manufacturers

In fact, quantifying the specific inventory levels of each supply chain node is quite complex and not an easy task, and the inventory levels of TV manufacturers and retailers also vary, depending on their supply chain resources for TV components (the delivery times of procurement orders are different), regional manufacturing, VMI (Vendor Managed Inventory) with supply chain participants, the type of business of retailers (online vs offline), retailers’ requirements for safety buffers, promotional seasons, and the strategies and flexibility of TV manufacturers and retailers regarding inventory replenishment, etc.
For the following reasons, global top-tier TV brands/OEMs and retailers need to maintain a certain level of safety buffer inventory:
  • SKD (Semi-knock down) /CKD (Complete-knock down) is within the range of 5-8 weeks (including in transit and open cells)

  • Shipping takes about 3.5-4.5 weeks (e.g., from Asia to America or Europe)

  • Land transportation by truck or train, as well as customs clearance, takes about 1-2 weeks.

  • The finished LCD TVs at regional factories have a safety buffer inventory of 1-2 weeks. Most TV manufacturers’ finished TV inventory is not high (mainly assembled locally), so 1-2 weeks is sufficient. Some LCD TV manufacturers have very low safety buffer inventory for finished TVs because their production centers in the Middle East are very close to the European, Middle Eastern, and African markets.

Today, due to severe congestion at ports (especially on the US West Coast) and a shortage of containers, all delivery times are getting longer.

05

Retailers

LCD TV retailers generally maintain an average safety inventory of 6 weeks with their important LCD TV suppliers. For top-tier manufacturers like Samsung and LG Electronics, an additional 2 weeks of safety buffer is retained at their regional subsidiaries (including the retailers’ own warehouses in the area) to maintain smooth terminal sales for retailers.
Unlike the 6-week safety buffer period of traditional brick-and-mortar retailers, online retailers only have a 2-week safety buffer period, but they require LCD TV manufacturers to maintain a certain buffer inventory and bear the risk of inventory sales.
Some large retailers do not have so-called “safety buffers.” Their inventory is arranged and predicted based on historical experiences of consumer purchasing behavior, purchasing patterns, and the retailers’ promotional plans.
At the same time, if it is the US tax refund season, the safety buffer period for retailers is 4-6 weeks. If it is the US B2S (Back To School) promotional season, the safety buffer period for low-price best-selling products like 32/40-inch LCD TVs can reach up to 20 weeks. This means that some retailers can flexibly manage inventory based on promotional and seasonal characteristics.

Production Cycle and Inventory Status of LCD TV Supply Chain

As of now, overall, first-tier TV brands/OEMs lack 1-3 weeks of safety buffer inventory at the retailer end. The degree of out-of-stock varies at different supply chain nodes, and the cases of different companies are also different.
Omdia believes that in the expected changes in the TV panel market in the second half of 2021, in addition to the supply-demand comparison of capacity and demand, the inventory status of the entire LCD TV panel supply chain will be the key to affecting panel prices in the second half of 2021.

Source: Omdia

Production Cycle and Inventory Status of LCD TV Supply Chain

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Production Cycle and Inventory Status of LCD TV Supply Chain

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Production Cycle and Inventory Status of LCD TV Supply Chain

Production Cycle and Inventory Status of LCD TV Supply Chain

Production Cycle and Inventory Status of LCD TV Supply Chain

Production Cycle and Inventory Status of LCD TV Supply Chain

Production Cycle and Inventory Status of LCD TV Supply Chain

Production Cycle and Inventory Status of LCD TV Supply Chain

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